Mercurial > hg > graal-jvmci-8
annotate src/share/vm/opto/library_call.cpp @ 20312:922c87c9aed4
8035605: Expand functionality of PredictedIntrinsicGenerator
Summary: Allow several predicates and separate intrinsic methods per one intrinsified (virtual) method.
Reviewed-by: roland
| author | kvn |
|---|---|
| date | Tue, 10 Jun 2014 12:28:06 -0700 |
| parents | 00c8a1255912 |
| children | b20a35eae442 |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 10405 | 2 * Copyright (c) 1999, 2013, Oracle and/or its affiliates. All rights reserved. |
| 0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 * | |
| 5 * This code is free software; you can redistribute it and/or modify it | |
| 6 * under the terms of the GNU General Public License version 2 only, as | |
| 7 * published by the Free Software Foundation. | |
| 8 * | |
| 9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 12 * version 2 for more details (a copy is included in the LICENSE file that | |
| 13 * accompanied this code). | |
| 14 * | |
| 15 * You should have received a copy of the GNU General Public License version | |
| 16 * 2 along with this work; if not, write to the Free Software Foundation, | |
| 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 18 * | |
|
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 1972 | 25 #include "precompiled.hpp" |
| 26 #include "classfile/systemDictionary.hpp" | |
| 27 #include "classfile/vmSymbols.hpp" | |
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28 #include "compiler/compileBroker.hpp" |
| 1972 | 29 #include "compiler/compileLog.hpp" |
| 30 #include "oops/objArrayKlass.hpp" | |
| 31 #include "opto/addnode.hpp" | |
| 32 #include "opto/callGenerator.hpp" | |
| 33 #include "opto/cfgnode.hpp" | |
| 34 #include "opto/idealKit.hpp" | |
| 12323 | 35 #include "opto/mathexactnode.hpp" |
| 1972 | 36 #include "opto/mulnode.hpp" |
| 37 #include "opto/parse.hpp" | |
| 38 #include "opto/runtime.hpp" | |
| 39 #include "opto/subnode.hpp" | |
| 40 #include "prims/nativeLookup.hpp" | |
| 41 #include "runtime/sharedRuntime.hpp" | |
| 10405 | 42 #include "trace/traceMacros.hpp" |
| 0 | 43 |
| 44 class LibraryIntrinsic : public InlineCallGenerator { | |
| 45 // Extend the set of intrinsics known to the runtime: | |
| 46 public: | |
| 47 private: | |
| 48 bool _is_virtual; | |
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49 bool _does_virtual_dispatch; |
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50 int8_t _predicates_count; // Intrinsic is predicated by several conditions |
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51 int8_t _last_predicate; // Last generated predicate |
| 0 | 52 vmIntrinsics::ID _intrinsic_id; |
| 53 | |
| 54 public: | |
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55 LibraryIntrinsic(ciMethod* m, bool is_virtual, int predicates_count, bool does_virtual_dispatch, vmIntrinsics::ID id) |
| 0 | 56 : InlineCallGenerator(m), |
| 57 _is_virtual(is_virtual), | |
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58 _does_virtual_dispatch(does_virtual_dispatch), |
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59 _predicates_count((int8_t)predicates_count), |
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60 _last_predicate((int8_t)-1), |
| 0 | 61 _intrinsic_id(id) |
| 62 { | |
| 63 } | |
| 64 virtual bool is_intrinsic() const { return true; } | |
| 65 virtual bool is_virtual() const { return _is_virtual; } | |
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66 virtual bool is_predicated() const { return _predicates_count > 0; } |
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67 virtual int predicates_count() const { return _predicates_count; } |
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68 virtual bool does_virtual_dispatch() const { return _does_virtual_dispatch; } |
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69 virtual JVMState* generate(JVMState* jvms, Parse* parent_parser); |
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70 virtual Node* generate_predicate(JVMState* jvms, int predicate); |
| 0 | 71 vmIntrinsics::ID intrinsic_id() const { return _intrinsic_id; } |
| 72 }; | |
| 73 | |
| 74 | |
| 75 // Local helper class for LibraryIntrinsic: | |
| 76 class LibraryCallKit : public GraphKit { | |
| 77 private: | |
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78 LibraryIntrinsic* _intrinsic; // the library intrinsic being called |
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79 Node* _result; // the result node, if any |
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80 int _reexecute_sp; // the stack pointer when bytecode needs to be reexecuted |
| 0 | 81 |
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82 const TypeOopPtr* sharpen_unsafe_type(Compile::AliasType* alias_type, const TypePtr *adr_type, bool is_native_ptr = false); |
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83 |
| 0 | 84 public: |
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85 LibraryCallKit(JVMState* jvms, LibraryIntrinsic* intrinsic) |
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86 : GraphKit(jvms), |
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87 _intrinsic(intrinsic), |
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88 _result(NULL) |
| 0 | 89 { |
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90 // Check if this is a root compile. In that case we don't have a caller. |
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91 if (!jvms->has_method()) { |
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92 _reexecute_sp = sp(); |
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93 } else { |
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94 // Find out how many arguments the interpreter needs when deoptimizing |
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95 // and save the stack pointer value so it can used by uncommon_trap. |
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96 // We find the argument count by looking at the declared signature. |
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97 bool ignored_will_link; |
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98 ciSignature* declared_signature = NULL; |
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99 ciMethod* ignored_callee = caller()->get_method_at_bci(bci(), ignored_will_link, &declared_signature); |
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100 const int nargs = declared_signature->arg_size_for_bc(caller()->java_code_at_bci(bci())); |
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101 _reexecute_sp = sp() + nargs; // "push" arguments back on stack |
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102 } |
| 0 | 103 } |
| 104 | |
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105 virtual LibraryCallKit* is_LibraryCallKit() const { return (LibraryCallKit*)this; } |
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106 |
| 0 | 107 ciMethod* caller() const { return jvms()->method(); } |
| 108 int bci() const { return jvms()->bci(); } | |
| 109 LibraryIntrinsic* intrinsic() const { return _intrinsic; } | |
| 110 vmIntrinsics::ID intrinsic_id() const { return _intrinsic->intrinsic_id(); } | |
| 111 ciMethod* callee() const { return _intrinsic->method(); } | |
| 112 | |
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113 bool try_to_inline(int predicate); |
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114 Node* try_to_predicate(int predicate); |
| 0 | 115 |
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116 void push_result() { |
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117 // Push the result onto the stack. |
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118 if (!stopped() && result() != NULL) { |
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119 BasicType bt = result()->bottom_type()->basic_type(); |
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120 push_node(bt, result()); |
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121 } |
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122 } |
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123 |
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124 private: |
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125 void fatal_unexpected_iid(vmIntrinsics::ID iid) { |
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126 fatal(err_msg_res("unexpected intrinsic %d: %s", iid, vmIntrinsics::name_at(iid))); |
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127 } |
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128 |
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129 void set_result(Node* n) { assert(_result == NULL, "only set once"); _result = n; } |
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130 void set_result(RegionNode* region, PhiNode* value); |
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131 Node* result() { return _result; } |
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132 |
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133 virtual int reexecute_sp() { return _reexecute_sp; } |
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134 |
| 0 | 135 // Helper functions to inline natives |
| 136 Node* generate_guard(Node* test, RegionNode* region, float true_prob); | |
| 137 Node* generate_slow_guard(Node* test, RegionNode* region); | |
| 138 Node* generate_fair_guard(Node* test, RegionNode* region); | |
| 139 Node* generate_negative_guard(Node* index, RegionNode* region, | |
| 140 // resulting CastII of index: | |
| 141 Node* *pos_index = NULL); | |
| 142 Node* generate_nonpositive_guard(Node* index, bool never_negative, | |
| 143 // resulting CastII of index: | |
| 144 Node* *pos_index = NULL); | |
| 145 Node* generate_limit_guard(Node* offset, Node* subseq_length, | |
| 146 Node* array_length, | |
| 147 RegionNode* region); | |
| 148 Node* generate_current_thread(Node* &tls_output); | |
| 149 address basictype2arraycopy(BasicType t, Node *src_offset, Node *dest_offset, | |
| 2324 | 150 bool disjoint_bases, const char* &name, bool dest_uninitialized); |
| 0 | 151 Node* load_mirror_from_klass(Node* klass); |
| 152 Node* load_klass_from_mirror_common(Node* mirror, bool never_see_null, | |
| 153 RegionNode* region, int null_path, | |
| 154 int offset); | |
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155 Node* load_klass_from_mirror(Node* mirror, bool never_see_null, |
| 0 | 156 RegionNode* region, int null_path) { |
| 157 int offset = java_lang_Class::klass_offset_in_bytes(); | |
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158 return load_klass_from_mirror_common(mirror, never_see_null, |
| 0 | 159 region, null_path, |
| 160 offset); | |
| 161 } | |
| 162 Node* load_array_klass_from_mirror(Node* mirror, bool never_see_null, | |
| 163 RegionNode* region, int null_path) { | |
| 164 int offset = java_lang_Class::array_klass_offset_in_bytes(); | |
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165 return load_klass_from_mirror_common(mirror, never_see_null, |
| 0 | 166 region, null_path, |
| 167 offset); | |
| 168 } | |
| 169 Node* generate_access_flags_guard(Node* kls, | |
| 170 int modifier_mask, int modifier_bits, | |
| 171 RegionNode* region); | |
| 172 Node* generate_interface_guard(Node* kls, RegionNode* region); | |
| 173 Node* generate_array_guard(Node* kls, RegionNode* region) { | |
| 174 return generate_array_guard_common(kls, region, false, false); | |
| 175 } | |
| 176 Node* generate_non_array_guard(Node* kls, RegionNode* region) { | |
| 177 return generate_array_guard_common(kls, region, false, true); | |
| 178 } | |
| 179 Node* generate_objArray_guard(Node* kls, RegionNode* region) { | |
| 180 return generate_array_guard_common(kls, region, true, false); | |
| 181 } | |
| 182 Node* generate_non_objArray_guard(Node* kls, RegionNode* region) { | |
| 183 return generate_array_guard_common(kls, region, true, true); | |
| 184 } | |
| 185 Node* generate_array_guard_common(Node* kls, RegionNode* region, | |
| 186 bool obj_array, bool not_array); | |
| 187 Node* generate_virtual_guard(Node* obj_klass, RegionNode* slow_region); | |
| 188 CallJavaNode* generate_method_call(vmIntrinsics::ID method_id, | |
| 189 bool is_virtual = false, bool is_static = false); | |
| 190 CallJavaNode* generate_method_call_static(vmIntrinsics::ID method_id) { | |
| 191 return generate_method_call(method_id, false, true); | |
| 192 } | |
| 193 CallJavaNode* generate_method_call_virtual(vmIntrinsics::ID method_id) { | |
| 194 return generate_method_call(method_id, true, false); | |
| 195 } | |
| 6894 | 196 Node * load_field_from_object(Node * fromObj, const char * fieldName, const char * fieldTypeString, bool is_exact, bool is_static); |
| 0 | 197 |
| 6057 | 198 Node* make_string_method_node(int opcode, Node* str1_start, Node* cnt1, Node* str2_start, Node* cnt2); |
| 199 Node* make_string_method_node(int opcode, Node* str1, Node* str2); | |
| 0 | 200 bool inline_string_compareTo(); |
| 201 bool inline_string_indexOf(); | |
| 202 Node* string_indexOf(Node* string_object, ciTypeArray* target_array, jint offset, jint cache_i, jint md2_i); | |
| 681 | 203 bool inline_string_equals(); |
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204 Node* round_double_node(Node* n); |
| 0 | 205 bool runtime_math(const TypeFunc* call_type, address funcAddr, const char* funcName); |
| 206 bool inline_math_native(vmIntrinsics::ID id); | |
| 207 bool inline_trig(vmIntrinsics::ID id); | |
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208 bool inline_math(vmIntrinsics::ID id); |
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209 template <typename OverflowOp> |
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210 bool inline_math_overflow(Node* arg1, Node* arg2); |
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211 void inline_math_mathExact(Node* math, Node* test); |
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212 bool inline_math_addExactI(bool is_increment); |
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213 bool inline_math_addExactL(bool is_increment); |
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214 bool inline_math_multiplyExactI(); |
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215 bool inline_math_multiplyExactL(); |
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216 bool inline_math_negateExactI(); |
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217 bool inline_math_negateExactL(); |
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218 bool inline_math_subtractExactI(bool is_decrement); |
|
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219 bool inline_math_subtractExactL(bool is_decrement); |
|
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220 bool inline_exp(); |
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221 bool inline_pow(); |
|
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8029302: Performance regression in Math.pow intrinsic
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222 Node* finish_pow_exp(Node* result, Node* x, Node* y, const TypeFunc* call_type, address funcAddr, const char* funcName); |
| 0 | 223 bool inline_min_max(vmIntrinsics::ID id); |
| 224 Node* generate_min_max(vmIntrinsics::ID id, Node* x, Node* y); | |
| 225 // This returns Type::AnyPtr, RawPtr, or OopPtr. | |
| 226 int classify_unsafe_addr(Node* &base, Node* &offset); | |
| 227 Node* make_unsafe_address(Node* base, Node* offset); | |
|
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228 // Helper for inline_unsafe_access. |
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229 // Generates the guards that check whether the result of |
|
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230 // Unsafe.getObject should be recorded in an SATB log buffer. |
|
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231 void insert_pre_barrier(Node* base_oop, Node* offset, Node* pre_val, bool need_mem_bar); |
| 0 | 232 bool inline_unsafe_access(bool is_native_ptr, bool is_store, BasicType type, bool is_volatile); |
| 233 bool inline_unsafe_prefetch(bool is_native_ptr, bool is_store, bool is_static); | |
| 12078 | 234 static bool klass_needs_init_guard(Node* kls); |
| 0 | 235 bool inline_unsafe_allocate(); |
| 236 bool inline_unsafe_copyMemory(); | |
| 237 bool inline_native_currentThread(); | |
|
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|
238 #ifdef TRACE_HAVE_INTRINSICS |
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239 bool inline_native_classID(); |
|
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|
240 bool inline_native_threadID(); |
|
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7160570: Intrinsification support for tracing framework
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changeset
|
241 #endif |
|
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changeset
|
242 bool inline_native_time_funcs(address method, const char* funcName); |
| 0 | 243 bool inline_native_isInterrupted(); |
| 244 bool inline_native_Class_query(vmIntrinsics::ID id); | |
| 245 bool inline_native_subtype_check(); | |
| 246 | |
| 247 bool inline_native_newArray(); | |
| 248 bool inline_native_getLength(); | |
| 249 bool inline_array_copyOf(bool is_copyOfRange); | |
|
169
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changeset
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250 bool inline_array_equals(); |
|
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6840775: Multiple JVM crashes seen with 1.6.0_10 through 1.6.0_14
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diff
changeset
|
251 void copy_to_clone(Node* obj, Node* alloc_obj, Node* obj_size, bool is_array, bool card_mark); |
| 0 | 252 bool inline_native_clone(bool is_virtual); |
| 253 bool inline_native_Reflection_getCallerClass(); | |
| 254 // Helper function for inlining native object hash method | |
| 255 bool inline_native_hashcode(bool is_virtual, bool is_static); | |
| 256 bool inline_native_getClass(); | |
| 257 | |
| 258 // Helper functions for inlining arraycopy | |
| 259 bool inline_arraycopy(); | |
| 260 void generate_arraycopy(const TypePtr* adr_type, | |
| 261 BasicType basic_elem_type, | |
| 262 Node* src, Node* src_offset, | |
| 263 Node* dest, Node* dest_offset, | |
| 264 Node* copy_length, | |
| 265 bool disjoint_bases = false, | |
| 266 bool length_never_negative = false, | |
| 267 RegionNode* slow_region = NULL); | |
| 268 AllocateArrayNode* tightly_coupled_allocation(Node* ptr, | |
| 269 RegionNode* slow_region); | |
| 270 void generate_clear_array(const TypePtr* adr_type, | |
| 271 Node* dest, | |
| 272 BasicType basic_elem_type, | |
| 273 Node* slice_off, | |
| 274 Node* slice_len, | |
| 275 Node* slice_end); | |
| 276 bool generate_block_arraycopy(const TypePtr* adr_type, | |
| 277 BasicType basic_elem_type, | |
| 278 AllocateNode* alloc, | |
| 279 Node* src, Node* src_offset, | |
| 280 Node* dest, Node* dest_offset, | |
| 2324 | 281 Node* dest_size, bool dest_uninitialized); |
| 0 | 282 void generate_slow_arraycopy(const TypePtr* adr_type, |
| 283 Node* src, Node* src_offset, | |
| 284 Node* dest, Node* dest_offset, | |
| 2324 | 285 Node* copy_length, bool dest_uninitialized); |
| 0 | 286 Node* generate_checkcast_arraycopy(const TypePtr* adr_type, |
| 287 Node* dest_elem_klass, | |
| 288 Node* src, Node* src_offset, | |
| 289 Node* dest, Node* dest_offset, | |
| 2324 | 290 Node* copy_length, bool dest_uninitialized); |
| 0 | 291 Node* generate_generic_arraycopy(const TypePtr* adr_type, |
| 292 Node* src, Node* src_offset, | |
| 293 Node* dest, Node* dest_offset, | |
| 2324 | 294 Node* copy_length, bool dest_uninitialized); |
| 0 | 295 void generate_unchecked_arraycopy(const TypePtr* adr_type, |
| 296 BasicType basic_elem_type, | |
| 297 bool disjoint_bases, | |
| 298 Node* src, Node* src_offset, | |
| 299 Node* dest, Node* dest_offset, | |
| 2324 | 300 Node* copy_length, bool dest_uninitialized); |
|
6795
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7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
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diff
changeset
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301 typedef enum { LS_xadd, LS_xchg, LS_cmpxchg } LoadStoreKind; |
|
7eca5de9e0b6
7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
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changeset
|
302 bool inline_unsafe_load_store(BasicType type, LoadStoreKind kind); |
| 0 | 303 bool inline_unsafe_ordered_store(BasicType type); |
| 7425 | 304 bool inline_unsafe_fence(vmIntrinsics::ID id); |
| 0 | 305 bool inline_fp_conversions(vmIntrinsics::ID id); |
|
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changeset
|
306 bool inline_number_methods(vmIntrinsics::ID id); |
|
3249
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7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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changeset
|
307 bool inline_reference_get(); |
| 6894 | 308 bool inline_aescrypt_Block(vmIntrinsics::ID id); |
| 309 bool inline_cipherBlockChaining_AESCrypt(vmIntrinsics::ID id); | |
| 310 Node* inline_cipherBlockChaining_AESCrypt_predicate(bool decrypting); | |
| 311 Node* get_key_start_from_aescrypt_object(Node* aescrypt_object); | |
| 17670 | 312 Node* get_original_key_start_from_aescrypt_object(Node* aescrypt_object); |
|
7637
b30b3c2a0cf2
6896617: Optimize sun.nio.cs.ISO_8859_1$Encode.encodeArrayLoop() on x86
kvn
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7602
diff
changeset
|
313 bool inline_encodeISOArray(); |
|
11080
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7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10405
diff
changeset
|
314 bool inline_updateCRC32(); |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
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10405
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changeset
|
315 bool inline_updateBytesCRC32(); |
|
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7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
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changeset
|
316 bool inline_updateByteBufferCRC32(); |
| 0 | 317 }; |
| 318 | |
| 319 | |
| 320 //---------------------------make_vm_intrinsic---------------------------- | |
| 321 CallGenerator* Compile::make_vm_intrinsic(ciMethod* m, bool is_virtual) { | |
| 322 vmIntrinsics::ID id = m->intrinsic_id(); | |
| 323 assert(id != vmIntrinsics::_none, "must be a VM intrinsic"); | |
| 324 | |
| 325 if (DisableIntrinsic[0] != '\0' | |
| 326 && strstr(DisableIntrinsic, vmIntrinsics::name_at(id)) != NULL) { | |
| 327 // disabled by a user request on the command line: | |
| 328 // example: -XX:DisableIntrinsic=_hashCode,_getClass | |
| 329 return NULL; | |
| 330 } | |
| 331 | |
| 332 if (!m->is_loaded()) { | |
| 333 // do not attempt to inline unloaded methods | |
| 334 return NULL; | |
| 335 } | |
| 336 | |
| 337 // Only a few intrinsics implement a virtual dispatch. | |
| 338 // They are expensive calls which are also frequently overridden. | |
| 339 if (is_virtual) { | |
| 340 switch (id) { | |
| 341 case vmIntrinsics::_hashCode: | |
| 342 case vmIntrinsics::_clone: | |
| 343 // OK, Object.hashCode and Object.clone intrinsics come in both flavors | |
| 344 break; | |
| 345 default: | |
| 346 return NULL; | |
| 347 } | |
| 348 } | |
| 349 | |
| 350 // -XX:-InlineNatives disables nearly all intrinsics: | |
| 351 if (!InlineNatives) { | |
| 352 switch (id) { | |
| 353 case vmIntrinsics::_indexOf: | |
| 354 case vmIntrinsics::_compareTo: | |
| 681 | 355 case vmIntrinsics::_equals: |
|
169
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6695049: (coll) Create an x86 intrinsic for Arrays.equals
rasbold
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164
diff
changeset
|
356 case vmIntrinsics::_equalsC: |
|
6795
7eca5de9e0b6
7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
roland
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diff
changeset
|
357 case vmIntrinsics::_getAndAddInt: |
|
7eca5de9e0b6
7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
roland
parents:
6725
diff
changeset
|
358 case vmIntrinsics::_getAndAddLong: |
|
7eca5de9e0b6
7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
roland
parents:
6725
diff
changeset
|
359 case vmIntrinsics::_getAndSetInt: |
|
7eca5de9e0b6
7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
roland
parents:
6725
diff
changeset
|
360 case vmIntrinsics::_getAndSetLong: |
|
7eca5de9e0b6
7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
roland
parents:
6725
diff
changeset
|
361 case vmIntrinsics::_getAndSetObject: |
| 7425 | 362 case vmIntrinsics::_loadFence: |
| 363 case vmIntrinsics::_storeFence: | |
| 364 case vmIntrinsics::_fullFence: | |
| 0 | 365 break; // InlineNatives does not control String.compareTo |
|
6615
09aad8452938
7190310: Inlining WeakReference.get(), and hoisting $referent may lead to non-terminating loops
kvn
parents:
6266
diff
changeset
|
366 case vmIntrinsics::_Reference_get: |
|
09aad8452938
7190310: Inlining WeakReference.get(), and hoisting $referent may lead to non-terminating loops
kvn
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6266
diff
changeset
|
367 break; // InlineNatives does not control Reference.get |
| 0 | 368 default: |
| 369 return NULL; | |
| 370 } | |
| 371 } | |
| 372 | |
|
20312
922c87c9aed4
8035605: Expand functionality of PredictedIntrinsicGenerator
kvn
parents:
17990
diff
changeset
|
373 int predicates = 0; |
|
12330
29bdcf12457c
8014447: Object.hashCode intrinsic breaks inline caches
shade
parents:
12323
diff
changeset
|
374 bool does_virtual_dispatch = false; |
| 6894 | 375 |
| 0 | 376 switch (id) { |
| 377 case vmIntrinsics::_compareTo: | |
| 378 if (!SpecialStringCompareTo) return NULL; | |
|
7194
beebba0acc11
7172640: C2: instrinsic implementations in LibraryCallKit should use argument() instead of pop()
twisti
parents:
6894
diff
changeset
|
379 if (!Matcher::match_rule_supported(Op_StrComp)) return NULL; |
| 0 | 380 break; |
| 381 case vmIntrinsics::_indexOf: | |
| 382 if (!SpecialStringIndexOf) return NULL; | |
| 383 break; | |
| 681 | 384 case vmIntrinsics::_equals: |
| 385 if (!SpecialStringEquals) return NULL; | |
|
7194
beebba0acc11
7172640: C2: instrinsic implementations in LibraryCallKit should use argument() instead of pop()
twisti
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diff
changeset
|
386 if (!Matcher::match_rule_supported(Op_StrEquals)) return NULL; |
| 681 | 387 break; |
|
169
9148c65abefc
6695049: (coll) Create an x86 intrinsic for Arrays.equals
rasbold
parents:
164
diff
changeset
|
388 case vmIntrinsics::_equalsC: |
|
9148c65abefc
6695049: (coll) Create an x86 intrinsic for Arrays.equals
rasbold
parents:
164
diff
changeset
|
389 if (!SpecialArraysEquals) return NULL; |
|
7194
beebba0acc11
7172640: C2: instrinsic implementations in LibraryCallKit should use argument() instead of pop()
twisti
parents:
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changeset
|
390 if (!Matcher::match_rule_supported(Op_AryEq)) return NULL; |
|
169
9148c65abefc
6695049: (coll) Create an x86 intrinsic for Arrays.equals
rasbold
parents:
164
diff
changeset
|
391 break; |
| 0 | 392 case vmIntrinsics::_arraycopy: |
| 393 if (!InlineArrayCopy) return NULL; | |
| 394 break; | |
| 395 case vmIntrinsics::_copyMemory: | |
| 396 if (StubRoutines::unsafe_arraycopy() == NULL) return NULL; | |
| 397 if (!InlineArrayCopy) return NULL; | |
| 398 break; | |
| 399 case vmIntrinsics::_hashCode: | |
| 400 if (!InlineObjectHash) return NULL; | |
|
12330
29bdcf12457c
8014447: Object.hashCode intrinsic breaks inline caches
shade
parents:
12323
diff
changeset
|
401 does_virtual_dispatch = true; |
| 0 | 402 break; |
| 403 case vmIntrinsics::_clone: | |
|
12330
29bdcf12457c
8014447: Object.hashCode intrinsic breaks inline caches
shade
parents:
12323
diff
changeset
|
404 does_virtual_dispatch = true; |
| 0 | 405 case vmIntrinsics::_copyOf: |
| 406 case vmIntrinsics::_copyOfRange: | |
| 407 if (!InlineObjectCopy) return NULL; | |
| 408 // These also use the arraycopy intrinsic mechanism: | |
| 409 if (!InlineArrayCopy) return NULL; | |
| 410 break; | |
|
7637
b30b3c2a0cf2
6896617: Optimize sun.nio.cs.ISO_8859_1$Encode.encodeArrayLoop() on x86
kvn
parents:
7602
diff
changeset
|
411 case vmIntrinsics::_encodeISOArray: |
|
b30b3c2a0cf2
6896617: Optimize sun.nio.cs.ISO_8859_1$Encode.encodeArrayLoop() on x86
kvn
parents:
7602
diff
changeset
|
412 if (!SpecialEncodeISOArray) return NULL; |
|
b30b3c2a0cf2
6896617: Optimize sun.nio.cs.ISO_8859_1$Encode.encodeArrayLoop() on x86
kvn
parents:
7602
diff
changeset
|
413 if (!Matcher::match_rule_supported(Op_EncodeISOArray)) return NULL; |
|
b30b3c2a0cf2
6896617: Optimize sun.nio.cs.ISO_8859_1$Encode.encodeArrayLoop() on x86
kvn
parents:
7602
diff
changeset
|
414 break; |
| 0 | 415 case vmIntrinsics::_checkIndex: |
| 416 // We do not intrinsify this. The optimizer does fine with it. | |
| 417 return NULL; | |
| 418 | |
| 419 case vmIntrinsics::_getCallerClass: | |
| 420 if (!UseNewReflection) return NULL; | |
| 421 if (!InlineReflectionGetCallerClass) return NULL; | |
|
8866
16885e702c88
7198429: need checked categorization of caller-sensitive methods in the JDK
twisti
parents:
8076
diff
changeset
|
422 if (SystemDictionary::reflect_CallerSensitive_klass() == NULL) return NULL; |
| 0 | 423 break; |
| 424 | |
|
643
c771b7f43bbf
6378821: bitCount() should use POPC on SPARC processors and AMD+10h
twisti
parents:
605
diff
changeset
|
425 case vmIntrinsics::_bitCount_i: |
|
5934
61b82be3b1ff
7152957: VM crashes with assert(false) failed: bad AD file
never
parents:
5927
diff
changeset
|
426 if (!Matcher::match_rule_supported(Op_PopCountI)) return NULL; |
|
5927
b40ac3579043
6658428: C2 doesn't inline java method if corresponding intrinsic failed to inline.
never
parents:
4902
diff
changeset
|
427 break; |
|
b40ac3579043
6658428: C2 doesn't inline java method if corresponding intrinsic failed to inline.
never
parents:
4902
diff
changeset
|
428 |
|
643
c771b7f43bbf
6378821: bitCount() should use POPC on SPARC processors and AMD+10h
twisti
parents:
605
diff
changeset
|
429 case vmIntrinsics::_bitCount_l: |
|
5934
61b82be3b1ff
7152957: VM crashes with assert(false) failed: bad AD file
never
parents:
5927
diff
changeset
|
430 if (!Matcher::match_rule_supported(Op_PopCountL)) return NULL; |
|
5927
b40ac3579043
6658428: C2 doesn't inline java method if corresponding intrinsic failed to inline.
never
parents:
4902
diff
changeset
|
431 break; |
|
b40ac3579043
6658428: C2 doesn't inline java method if corresponding intrinsic failed to inline.
never
parents:
4902
diff
changeset
|
432 |
|
b40ac3579043
6658428: C2 doesn't inline java method if corresponding intrinsic failed to inline.
never
parents:
4902
diff
changeset
|
433 case vmIntrinsics::_numberOfLeadingZeros_i: |
|
b40ac3579043
6658428: C2 doesn't inline java method if corresponding intrinsic failed to inline.
never
parents:
4902
diff
changeset
|
434 if (!Matcher::match_rule_supported(Op_CountLeadingZerosI)) return NULL; |
|
b40ac3579043
6658428: C2 doesn't inline java method if corresponding intrinsic failed to inline.
never
parents:
4902
diff
changeset
|
435 break; |
|
b40ac3579043
6658428: C2 doesn't inline java method if corresponding intrinsic failed to inline.
never
parents:
4902
diff
changeset
|
436 |
|
b40ac3579043
6658428: C2 doesn't inline java method if corresponding intrinsic failed to inline.
never
parents:
4902
diff
changeset
|
437 case vmIntrinsics::_numberOfLeadingZeros_l: |
|
b40ac3579043
6658428: C2 doesn't inline java method if corresponding intrinsic failed to inline.
never
parents:
4902
diff
changeset
|
438 if (!Matcher::match_rule_supported(Op_CountLeadingZerosL)) return NULL; |
|
b40ac3579043
6658428: C2 doesn't inline java method if corresponding intrinsic failed to inline.
never
parents:
4902
diff
changeset
|
439 break; |
|
b40ac3579043
6658428: C2 doesn't inline java method if corresponding intrinsic failed to inline.
never
parents:
4902
diff
changeset
|
440 |
|
b40ac3579043
6658428: C2 doesn't inline java method if corresponding intrinsic failed to inline.
never
parents:
4902
diff
changeset
|
441 case vmIntrinsics::_numberOfTrailingZeros_i: |
|
b40ac3579043
6658428: C2 doesn't inline java method if corresponding intrinsic failed to inline.
never
parents:
4902
diff
changeset
|
442 if (!Matcher::match_rule_supported(Op_CountTrailingZerosI)) return NULL; |
|
b40ac3579043
6658428: C2 doesn't inline java method if corresponding intrinsic failed to inline.
never
parents:
4902
diff
changeset
|
443 break; |
|
b40ac3579043
6658428: C2 doesn't inline java method if corresponding intrinsic failed to inline.
never
parents:
4902
diff
changeset
|
444 |
|
b40ac3579043
6658428: C2 doesn't inline java method if corresponding intrinsic failed to inline.
never
parents:
4902
diff
changeset
|
445 case vmIntrinsics::_numberOfTrailingZeros_l: |
|
b40ac3579043
6658428: C2 doesn't inline java method if corresponding intrinsic failed to inline.
never
parents:
4902
diff
changeset
|
446 if (!Matcher::match_rule_supported(Op_CountTrailingZerosL)) return NULL; |
|
643
c771b7f43bbf
6378821: bitCount() should use POPC on SPARC processors and AMD+10h
twisti
parents:
605
diff
changeset
|
447 break; |
|
c771b7f43bbf
6378821: bitCount() should use POPC on SPARC processors and AMD+10h
twisti
parents:
605
diff
changeset
|
448 |
|
7194
beebba0acc11
7172640: C2: instrinsic implementations in LibraryCallKit should use argument() instead of pop()
twisti
parents:
6894
diff
changeset
|
449 case vmIntrinsics::_reverseBytes_c: |
|
7421
ad5dd04754ee
8005031: Some cleanup in c2 to prepare for incremental inlining support
roland
parents:
7200
diff
changeset
|
450 if (!Matcher::match_rule_supported(Op_ReverseBytesUS)) return NULL; |
|
7194
beebba0acc11
7172640: C2: instrinsic implementations in LibraryCallKit should use argument() instead of pop()
twisti
parents:
6894
diff
changeset
|
451 break; |
|
beebba0acc11
7172640: C2: instrinsic implementations in LibraryCallKit should use argument() instead of pop()
twisti
parents:
6894
diff
changeset
|
452 case vmIntrinsics::_reverseBytes_s: |
|
7421
ad5dd04754ee
8005031: Some cleanup in c2 to prepare for incremental inlining support
roland
parents:
7200
diff
changeset
|
453 if (!Matcher::match_rule_supported(Op_ReverseBytesS)) return NULL; |
|
7194
beebba0acc11
7172640: C2: instrinsic implementations in LibraryCallKit should use argument() instead of pop()
twisti
parents:
6894
diff
changeset
|
454 break; |
|
beebba0acc11
7172640: C2: instrinsic implementations in LibraryCallKit should use argument() instead of pop()
twisti
parents:
6894
diff
changeset
|
455 case vmIntrinsics::_reverseBytes_i: |
|
7421
ad5dd04754ee
8005031: Some cleanup in c2 to prepare for incremental inlining support
roland
parents:
7200
diff
changeset
|
456 if (!Matcher::match_rule_supported(Op_ReverseBytesI)) return NULL; |
|
7194
beebba0acc11
7172640: C2: instrinsic implementations in LibraryCallKit should use argument() instead of pop()
twisti
parents:
6894
diff
changeset
|
457 break; |
|
beebba0acc11
7172640: C2: instrinsic implementations in LibraryCallKit should use argument() instead of pop()
twisti
parents:
6894
diff
changeset
|
458 case vmIntrinsics::_reverseBytes_l: |
|
7421
ad5dd04754ee
8005031: Some cleanup in c2 to prepare for incremental inlining support
roland
parents:
7200
diff
changeset
|
459 if (!Matcher::match_rule_supported(Op_ReverseBytesL)) return NULL; |
|
7194
beebba0acc11
7172640: C2: instrinsic implementations in LibraryCallKit should use argument() instead of pop()
twisti
parents:
6894
diff
changeset
|
460 break; |
|
beebba0acc11
7172640: C2: instrinsic implementations in LibraryCallKit should use argument() instead of pop()
twisti
parents:
6894
diff
changeset
|
461 |
|
3249
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2385
diff
changeset
|
462 case vmIntrinsics::_Reference_get: |
|
6615
09aad8452938
7190310: Inlining WeakReference.get(), and hoisting $referent may lead to non-terminating loops
kvn
parents:
6266
diff
changeset
|
463 // Use the intrinsic version of Reference.get() so that the value in |
|
09aad8452938
7190310: Inlining WeakReference.get(), and hoisting $referent may lead to non-terminating loops
kvn
parents:
6266
diff
changeset
|
464 // the referent field can be registered by the G1 pre-barrier code. |
|
09aad8452938
7190310: Inlining WeakReference.get(), and hoisting $referent may lead to non-terminating loops
kvn
parents:
6266
diff
changeset
|
465 // Also add memory barrier to prevent commoning reads from this field |
|
09aad8452938
7190310: Inlining WeakReference.get(), and hoisting $referent may lead to non-terminating loops
kvn
parents:
6266
diff
changeset
|
466 // across safepoint since GC can change it value. |
|
3249
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2385
diff
changeset
|
467 break; |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2385
diff
changeset
|
468 |
|
6795
7eca5de9e0b6
7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
roland
parents:
6725
diff
changeset
|
469 case vmIntrinsics::_compareAndSwapObject: |
|
7eca5de9e0b6
7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
roland
parents:
6725
diff
changeset
|
470 #ifdef _LP64 |
|
7eca5de9e0b6
7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
roland
parents:
6725
diff
changeset
|
471 if (!UseCompressedOops && !Matcher::match_rule_supported(Op_CompareAndSwapP)) return NULL; |
|
7eca5de9e0b6
7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
roland
parents:
6725
diff
changeset
|
472 #endif |
|
7eca5de9e0b6
7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
roland
parents:
6725
diff
changeset
|
473 break; |
|
7eca5de9e0b6
7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
roland
parents:
6725
diff
changeset
|
474 |
|
7eca5de9e0b6
7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
roland
parents:
6725
diff
changeset
|
475 case vmIntrinsics::_compareAndSwapLong: |
|
7eca5de9e0b6
7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
roland
parents:
6725
diff
changeset
|
476 if (!Matcher::match_rule_supported(Op_CompareAndSwapL)) return NULL; |
|
7eca5de9e0b6
7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
roland
parents:
6725
diff
changeset
|
477 break; |
|
7eca5de9e0b6
7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
roland
parents:
6725
diff
changeset
|
478 |
|
7eca5de9e0b6
7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
roland
parents:
6725
diff
changeset
|
479 case vmIntrinsics::_getAndAddInt: |
|
7eca5de9e0b6
7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
roland
parents:
6725
diff
changeset
|
480 if (!Matcher::match_rule_supported(Op_GetAndAddI)) return NULL; |
|
7eca5de9e0b6
7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
roland
parents:
6725
diff
changeset
|
481 break; |
|
7eca5de9e0b6
7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
roland
parents:
6725
diff
changeset
|
482 |
|
7eca5de9e0b6
7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
roland
parents:
6725
diff
changeset
|
483 case vmIntrinsics::_getAndAddLong: |
|
7eca5de9e0b6
7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
roland
parents:
6725
diff
changeset
|
484 if (!Matcher::match_rule_supported(Op_GetAndAddL)) return NULL; |
|
7eca5de9e0b6
7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
roland
parents:
6725
diff
changeset
|
485 break; |
|
7eca5de9e0b6
7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
roland
parents:
6725
diff
changeset
|
486 |
|
7eca5de9e0b6
7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
roland
parents:
6725
diff
changeset
|
487 case vmIntrinsics::_getAndSetInt: |
|
7eca5de9e0b6
7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
roland
parents:
6725
diff
changeset
|
488 if (!Matcher::match_rule_supported(Op_GetAndSetI)) return NULL; |
|
7eca5de9e0b6
7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
roland
parents:
6725
diff
changeset
|
489 break; |
|
7eca5de9e0b6
7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
roland
parents:
6725
diff
changeset
|
490 |
|
7eca5de9e0b6
7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
roland
parents:
6725
diff
changeset
|
491 case vmIntrinsics::_getAndSetLong: |
|
7eca5de9e0b6
7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
roland
parents:
6725
diff
changeset
|
492 if (!Matcher::match_rule_supported(Op_GetAndSetL)) return NULL; |
|
7eca5de9e0b6
7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
roland
parents:
6725
diff
changeset
|
493 break; |
|
7eca5de9e0b6
7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
roland
parents:
6725
diff
changeset
|
494 |
|
7eca5de9e0b6
7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
roland
parents:
6725
diff
changeset
|
495 case vmIntrinsics::_getAndSetObject: |
|
7eca5de9e0b6
7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
roland
parents:
6725
diff
changeset
|
496 #ifdef _LP64 |
|
7eca5de9e0b6
7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
roland
parents:
6725
diff
changeset
|
497 if (!UseCompressedOops && !Matcher::match_rule_supported(Op_GetAndSetP)) return NULL; |
|
7eca5de9e0b6
7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
roland
parents:
6725
diff
changeset
|
498 if (UseCompressedOops && !Matcher::match_rule_supported(Op_GetAndSetN)) return NULL; |
|
7eca5de9e0b6
7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
roland
parents:
6725
diff
changeset
|
499 break; |
|
7eca5de9e0b6
7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
roland
parents:
6725
diff
changeset
|
500 #else |
|
7eca5de9e0b6
7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
roland
parents:
6725
diff
changeset
|
501 if (!Matcher::match_rule_supported(Op_GetAndSetP)) return NULL; |
|
7eca5de9e0b6
7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
roland
parents:
6725
diff
changeset
|
502 break; |
|
7eca5de9e0b6
7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
roland
parents:
6725
diff
changeset
|
503 #endif |
|
7eca5de9e0b6
7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
roland
parents:
6725
diff
changeset
|
504 |
| 6894 | 505 case vmIntrinsics::_aescrypt_encryptBlock: |
| 506 case vmIntrinsics::_aescrypt_decryptBlock: | |
| 507 if (!UseAESIntrinsics) return NULL; | |
| 508 break; | |
| 509 | |
| 510 case vmIntrinsics::_cipherBlockChaining_encryptAESCrypt: | |
| 511 case vmIntrinsics::_cipherBlockChaining_decryptAESCrypt: | |
| 512 if (!UseAESIntrinsics) return NULL; | |
| 513 // these two require the predicated logic | |
|
20312
922c87c9aed4
8035605: Expand functionality of PredictedIntrinsicGenerator
kvn
parents:
17990
diff
changeset
|
514 predicates = 1; |
| 6894 | 515 break; |
| 516 | |
|
11080
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10405
diff
changeset
|
517 case vmIntrinsics::_updateCRC32: |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10405
diff
changeset
|
518 case vmIntrinsics::_updateBytesCRC32: |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10405
diff
changeset
|
519 case vmIntrinsics::_updateByteBufferCRC32: |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10405
diff
changeset
|
520 if (!UseCRC32Intrinsics) return NULL; |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10405
diff
changeset
|
521 break; |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10405
diff
changeset
|
522 |
|
12972
59e8ad757e19
8026844: Various Math functions needs intrinsification
rbackman
parents:
12966
diff
changeset
|
523 case vmIntrinsics::_incrementExactI: |
|
59e8ad757e19
8026844: Various Math functions needs intrinsification
rbackman
parents:
12966
diff
changeset
|
524 case vmIntrinsics::_addExactI: |
|
17726
085b304a1cc5
8027754: Enable loop optimizations for loops with MathExact inside
rbackman
parents:
17716
diff
changeset
|
525 if (!Matcher::match_rule_supported(Op_OverflowAddI) || !UseMathExactIntrinsics) return NULL; |
|
12972
59e8ad757e19
8026844: Various Math functions needs intrinsification
rbackman
parents:
12966
diff
changeset
|
526 break; |
|
59e8ad757e19
8026844: Various Math functions needs intrinsification
rbackman
parents:
12966
diff
changeset
|
527 case vmIntrinsics::_incrementExactL: |
|
59e8ad757e19
8026844: Various Math functions needs intrinsification
rbackman
parents:
12966
diff
changeset
|
528 case vmIntrinsics::_addExactL: |
|
17726
085b304a1cc5
8027754: Enable loop optimizations for loops with MathExact inside
rbackman
parents:
17716
diff
changeset
|
529 if (!Matcher::match_rule_supported(Op_OverflowAddL) || !UseMathExactIntrinsics) return NULL; |
|
12972
59e8ad757e19
8026844: Various Math functions needs intrinsification
rbackman
parents:
12966
diff
changeset
|
530 break; |
|
59e8ad757e19
8026844: Various Math functions needs intrinsification
rbackman
parents:
12966
diff
changeset
|
531 case vmIntrinsics::_decrementExactI: |
|
59e8ad757e19
8026844: Various Math functions needs intrinsification
rbackman
parents:
12966
diff
changeset
|
532 case vmIntrinsics::_subtractExactI: |
|
17726
085b304a1cc5
8027754: Enable loop optimizations for loops with MathExact inside
rbackman
parents:
17716
diff
changeset
|
533 if (!Matcher::match_rule_supported(Op_OverflowSubI) || !UseMathExactIntrinsics) return NULL; |
|
12972
59e8ad757e19
8026844: Various Math functions needs intrinsification
rbackman
parents:
12966
diff
changeset
|
534 break; |
|
59e8ad757e19
8026844: Various Math functions needs intrinsification
rbackman
parents:
12966
diff
changeset
|
535 case vmIntrinsics::_decrementExactL: |
|
59e8ad757e19
8026844: Various Math functions needs intrinsification
rbackman
parents:
12966
diff
changeset
|
536 case vmIntrinsics::_subtractExactL: |
|
17726
085b304a1cc5
8027754: Enable loop optimizations for loops with MathExact inside
rbackman
parents:
17716
diff
changeset
|
537 if (!Matcher::match_rule_supported(Op_OverflowSubL) || !UseMathExactIntrinsics) return NULL; |
|
12972
59e8ad757e19
8026844: Various Math functions needs intrinsification
rbackman
parents:
12966
diff
changeset
|
538 break; |
|
59e8ad757e19
8026844: Various Math functions needs intrinsification
rbackman
parents:
12966
diff
changeset
|
539 case vmIntrinsics::_negateExactI: |
|
17726
085b304a1cc5
8027754: Enable loop optimizations for loops with MathExact inside
rbackman
parents:
17716
diff
changeset
|
540 if (!Matcher::match_rule_supported(Op_OverflowSubI) || !UseMathExactIntrinsics) return NULL; |
|
12972
59e8ad757e19
8026844: Various Math functions needs intrinsification
rbackman
parents:
12966
diff
changeset
|
541 break; |
|
59e8ad757e19
8026844: Various Math functions needs intrinsification
rbackman
parents:
12966
diff
changeset
|
542 case vmIntrinsics::_negateExactL: |
|
17726
085b304a1cc5
8027754: Enable loop optimizations for loops with MathExact inside
rbackman
parents:
17716
diff
changeset
|
543 if (!Matcher::match_rule_supported(Op_OverflowSubL) || !UseMathExactIntrinsics) return NULL; |
|
12972
59e8ad757e19
8026844: Various Math functions needs intrinsification
rbackman
parents:
12966
diff
changeset
|
544 break; |
|
59e8ad757e19
8026844: Various Math functions needs intrinsification
rbackman
parents:
12966
diff
changeset
|
545 case vmIntrinsics::_multiplyExactI: |
|
17726
085b304a1cc5
8027754: Enable loop optimizations for loops with MathExact inside
rbackman
parents:
17716
diff
changeset
|
546 if (!Matcher::match_rule_supported(Op_OverflowMulI) || !UseMathExactIntrinsics) return NULL; |
|
12972
59e8ad757e19
8026844: Various Math functions needs intrinsification
rbackman
parents:
12966
diff
changeset
|
547 break; |
|
59e8ad757e19
8026844: Various Math functions needs intrinsification
rbackman
parents:
12966
diff
changeset
|
548 case vmIntrinsics::_multiplyExactL: |
|
17726
085b304a1cc5
8027754: Enable loop optimizations for loops with MathExact inside
rbackman
parents:
17716
diff
changeset
|
549 if (!Matcher::match_rule_supported(Op_OverflowMulL) || !UseMathExactIntrinsics) return NULL; |
| 12323 | 550 break; |
| 551 | |
| 0 | 552 default: |
|
856
75596850f863
6862576: vmIntrinsics needs cleanup in order to support JSR 292 intrinsics
jrose
parents:
851
diff
changeset
|
553 assert(id <= vmIntrinsics::LAST_COMPILER_INLINE, "caller responsibility"); |
|
75596850f863
6862576: vmIntrinsics needs cleanup in order to support JSR 292 intrinsics
jrose
parents:
851
diff
changeset
|
554 assert(id != vmIntrinsics::_Object_init && id != vmIntrinsics::_invoke, "enum out of order?"); |
| 0 | 555 break; |
| 556 } | |
| 557 | |
| 558 // -XX:-InlineClassNatives disables natives from the Class class. | |
| 559 // The flag applies to all reflective calls, notably Array.newArray | |
| 560 // (visible to Java programmers as Array.newInstance). | |
| 561 if (m->holder()->name() == ciSymbol::java_lang_Class() || | |
| 562 m->holder()->name() == ciSymbol::java_lang_reflect_Array()) { | |
| 563 if (!InlineClassNatives) return NULL; | |
| 564 } | |
| 565 | |
| 566 // -XX:-InlineThreadNatives disables natives from the Thread class. | |
| 567 if (m->holder()->name() == ciSymbol::java_lang_Thread()) { | |
| 568 if (!InlineThreadNatives) return NULL; | |
| 569 } | |
| 570 | |
| 571 // -XX:-InlineMathNatives disables natives from the Math,Float and Double classes. | |
| 572 if (m->holder()->name() == ciSymbol::java_lang_Math() || | |
| 573 m->holder()->name() == ciSymbol::java_lang_Float() || | |
| 574 m->holder()->name() == ciSymbol::java_lang_Double()) { | |
| 575 if (!InlineMathNatives) return NULL; | |
| 576 } | |
| 577 | |
| 578 // -XX:-InlineUnsafeOps disables natives from the Unsafe class. | |
| 579 if (m->holder()->name() == ciSymbol::sun_misc_Unsafe()) { | |
| 580 if (!InlineUnsafeOps) return NULL; | |
| 581 } | |
| 582 | |
|
20312
922c87c9aed4
8035605: Expand functionality of PredictedIntrinsicGenerator
kvn
parents:
17990
diff
changeset
|
583 return new LibraryIntrinsic(m, is_virtual, predicates, does_virtual_dispatch, (vmIntrinsics::ID) id); |
| 0 | 584 } |
| 585 | |
| 586 //----------------------register_library_intrinsics----------------------- | |
| 587 // Initialize this file's data structures, for each Compile instance. | |
| 588 void Compile::register_library_intrinsics() { | |
| 589 // Nothing to do here. | |
| 590 } | |
| 591 | |
|
12956
3213ba4d3dff
8024069: replace_in_map() should operate on parent maps
roland
parents:
12330
diff
changeset
|
592 JVMState* LibraryIntrinsic::generate(JVMState* jvms, Parse* parent_parser) { |
| 0 | 593 LibraryCallKit kit(jvms, this); |
| 594 Compile* C = kit.C; | |
| 595 int nodes = C->unique(); | |
| 596 #ifndef PRODUCT | |
| 12295 | 597 if ((C->print_intrinsics() || C->print_inlining()) && Verbose) { |
| 0 | 598 char buf[1000]; |
| 599 const char* str = vmIntrinsics::short_name_as_C_string(intrinsic_id(), buf, sizeof(buf)); | |
| 600 tty->print_cr("Intrinsic %s", str); | |
| 601 } | |
| 602 #endif | |
|
7194
beebba0acc11
7172640: C2: instrinsic implementations in LibraryCallKit should use argument() instead of pop()
twisti
parents:
6894
diff
changeset
|
603 ciMethod* callee = kit.callee(); |
|
beebba0acc11
7172640: C2: instrinsic implementations in LibraryCallKit should use argument() instead of pop()
twisti
parents:
6894
diff
changeset
|
604 const int bci = kit.bci(); |
|
beebba0acc11
7172640: C2: instrinsic implementations in LibraryCallKit should use argument() instead of pop()
twisti
parents:
6894
diff
changeset
|
605 |
|
beebba0acc11
7172640: C2: instrinsic implementations in LibraryCallKit should use argument() instead of pop()
twisti
parents:
6894
diff
changeset
|
606 // Try to inline the intrinsic. |
|
20312
922c87c9aed4
8035605: Expand functionality of PredictedIntrinsicGenerator
kvn
parents:
17990
diff
changeset
|
607 if (kit.try_to_inline(_last_predicate)) { |
| 12295 | 608 if (C->print_intrinsics() || C->print_inlining()) { |
|
7421
ad5dd04754ee
8005031: Some cleanup in c2 to prepare for incremental inlining support
roland
parents:
7200
diff
changeset
|
609 C->print_inlining(callee, jvms->depth() - 1, bci, is_virtual() ? "(intrinsic, virtual)" : "(intrinsic)"); |
| 0 | 610 } |
| 611 C->gather_intrinsic_statistics(intrinsic_id(), is_virtual(), Compile::_intrinsic_worked); | |
| 612 if (C->log()) { | |
| 613 C->log()->elem("intrinsic id='%s'%s nodes='%d'", | |
| 614 vmIntrinsics::name_at(intrinsic_id()), | |
| 615 (is_virtual() ? " virtual='1'" : ""), | |
| 616 C->unique() - nodes); | |
| 617 } | |
|
7194
beebba0acc11
7172640: C2: instrinsic implementations in LibraryCallKit should use argument() instead of pop()
twisti
parents:
6894
diff
changeset
|
618 // Push the result from the inlined method onto the stack. |
|
beebba0acc11
7172640: C2: instrinsic implementations in LibraryCallKit should use argument() instead of pop()
twisti
parents:
6894
diff
changeset
|
619 kit.push_result(); |
| 0 | 620 return kit.transfer_exceptions_into_jvms(); |
| 621 } | |
| 622 | |
|
5927
b40ac3579043
6658428: C2 doesn't inline java method if corresponding intrinsic failed to inline.
never
parents:
4902
diff
changeset
|
623 // The intrinsic bailed out |
| 12295 | 624 if (C->print_intrinsics() || C->print_inlining()) { |
|
3249
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2385
diff
changeset
|
625 if (jvms->has_method()) { |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2385
diff
changeset
|
626 // Not a root compile. |
|
5927
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627 const char* msg = is_virtual() ? "failed to inline (intrinsic, virtual)" : "failed to inline (intrinsic)"; |
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628 C->print_inlining(callee, jvms->depth() - 1, bci, msg); |
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629 } else { |
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630 // Root compile |
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631 tty->print("Did not generate intrinsic %s%s at bci:%d in", |
|
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632 vmIntrinsics::name_at(intrinsic_id()), |
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633 (is_virtual() ? " (virtual)" : ""), bci); |
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634 } |
| 0 | 635 } |
| 636 C->gather_intrinsic_statistics(intrinsic_id(), is_virtual(), Compile::_intrinsic_failed); | |
| 637 return NULL; | |
| 638 } | |
| 639 | |
|
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|
640 Node* LibraryIntrinsic::generate_predicate(JVMState* jvms, int predicate) { |
| 6894 | 641 LibraryCallKit kit(jvms, this); |
| 642 Compile* C = kit.C; | |
| 643 int nodes = C->unique(); | |
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644 _last_predicate = predicate; |
| 6894 | 645 #ifndef PRODUCT |
|
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646 assert(is_predicated() && predicate < predicates_count(), "sanity"); |
| 12295 | 647 if ((C->print_intrinsics() || C->print_inlining()) && Verbose) { |
| 6894 | 648 char buf[1000]; |
| 649 const char* str = vmIntrinsics::short_name_as_C_string(intrinsic_id(), buf, sizeof(buf)); | |
| 650 tty->print_cr("Predicate for intrinsic %s", str); | |
| 651 } | |
| 652 #endif | |
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653 ciMethod* callee = kit.callee(); |
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654 const int bci = kit.bci(); |
| 6894 | 655 |
|
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|
656 Node* slow_ctl = kit.try_to_predicate(predicate); |
| 6894 | 657 if (!kit.failing()) { |
| 12295 | 658 if (C->print_intrinsics() || C->print_inlining()) { |
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659 C->print_inlining(callee, jvms->depth() - 1, bci, is_virtual() ? "(intrinsic, virtual, predicate)" : "(intrinsic, predicate)"); |
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660 } |
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|
661 C->gather_intrinsic_statistics(intrinsic_id(), is_virtual(), Compile::_intrinsic_worked); |
| 6894 | 662 if (C->log()) { |
| 663 C->log()->elem("predicate_intrinsic id='%s'%s nodes='%d'", | |
| 664 vmIntrinsics::name_at(intrinsic_id()), | |
| 665 (is_virtual() ? " virtual='1'" : ""), | |
| 666 C->unique() - nodes); | |
| 667 } | |
| 668 return slow_ctl; // Could be NULL if the check folds. | |
| 669 } | |
| 670 | |
| 671 // The intrinsic bailed out | |
| 12295 | 672 if (C->print_intrinsics() || C->print_inlining()) { |
| 6894 | 673 if (jvms->has_method()) { |
| 674 // Not a root compile. | |
| 675 const char* msg = "failed to generate predicate for intrinsic"; | |
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676 C->print_inlining(kit.callee(), jvms->depth() - 1, bci, msg); |
| 6894 | 677 } else { |
| 678 // Root compile | |
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|
679 C->print_inlining_stream()->print("Did not generate predicate for intrinsic %s%s at bci:%d in", |
|
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|
680 vmIntrinsics::name_at(intrinsic_id()), |
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681 (is_virtual() ? " (virtual)" : ""), bci); |
| 6894 | 682 } |
| 683 } | |
| 684 C->gather_intrinsic_statistics(intrinsic_id(), is_virtual(), Compile::_intrinsic_failed); | |
| 685 return NULL; | |
| 686 } | |
| 687 | |
|
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|
688 bool LibraryCallKit::try_to_inline(int predicate) { |
| 0 | 689 // Handle symbolic names for otherwise undistinguished boolean switches: |
| 690 const bool is_store = true; | |
| 691 const bool is_native_ptr = true; | |
| 692 const bool is_static = true; | |
|
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|
693 const bool is_volatile = true; |
| 0 | 694 |
|
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|
695 if (!jvms()->has_method()) { |
|
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|
696 // Root JVMState has a null method. |
|
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|
697 assert(map()->memory()->Opcode() == Op_Parm, ""); |
|
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|
698 // Insert the memory aliasing node |
|
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|
699 set_all_memory(reset_memory()); |
|
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|
700 } |
|
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|
701 assert(merged_memory(), ""); |
|
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|
702 |
|
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|
703 |
| 0 | 704 switch (intrinsic_id()) { |
|
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|
705 case vmIntrinsics::_hashCode: return inline_native_hashcode(intrinsic()->is_virtual(), !is_static); |
|
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|
706 case vmIntrinsics::_identityHashCode: return inline_native_hashcode(/*!virtual*/ false, is_static); |
|
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|
707 case vmIntrinsics::_getClass: return inline_native_getClass(); |
| 0 | 708 |
| 709 case vmIntrinsics::_dsin: | |
| 710 case vmIntrinsics::_dcos: | |
| 711 case vmIntrinsics::_dtan: | |
| 712 case vmIntrinsics::_dabs: | |
| 713 case vmIntrinsics::_datan2: | |
| 714 case vmIntrinsics::_dsqrt: | |
| 715 case vmIntrinsics::_dexp: | |
| 716 case vmIntrinsics::_dlog: | |
| 717 case vmIntrinsics::_dlog10: | |
|
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|
718 case vmIntrinsics::_dpow: return inline_math_native(intrinsic_id()); |
| 0 | 719 |
| 720 case vmIntrinsics::_min: | |
|
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|
721 case vmIntrinsics::_max: return inline_min_max(intrinsic_id()); |
|
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|
722 |
|
12972
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|
723 case vmIntrinsics::_addExactI: return inline_math_addExactI(false /* add */); |
|
59e8ad757e19
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|
724 case vmIntrinsics::_addExactL: return inline_math_addExactL(false /* add */); |
|
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8026844: Various Math functions needs intrinsification
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changeset
|
725 case vmIntrinsics::_decrementExactI: return inline_math_subtractExactI(true /* decrement */); |
|
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changeset
|
726 case vmIntrinsics::_decrementExactL: return inline_math_subtractExactL(true /* decrement */); |
|
59e8ad757e19
8026844: Various Math functions needs intrinsification
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changeset
|
727 case vmIntrinsics::_incrementExactI: return inline_math_addExactI(true /* increment */); |
|
59e8ad757e19
8026844: Various Math functions needs intrinsification
rbackman
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|
728 case vmIntrinsics::_incrementExactL: return inline_math_addExactL(true /* increment */); |
|
59e8ad757e19
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rbackman
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changeset
|
729 case vmIntrinsics::_multiplyExactI: return inline_math_multiplyExactI(); |
|
59e8ad757e19
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rbackman
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changeset
|
730 case vmIntrinsics::_multiplyExactL: return inline_math_multiplyExactL(); |
|
59e8ad757e19
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|
731 case vmIntrinsics::_negateExactI: return inline_math_negateExactI(); |
|
59e8ad757e19
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rbackman
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diff
changeset
|
732 case vmIntrinsics::_negateExactL: return inline_math_negateExactL(); |
|
59e8ad757e19
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diff
changeset
|
733 case vmIntrinsics::_subtractExactI: return inline_math_subtractExactI(false /* subtract */); |
|
59e8ad757e19
8026844: Various Math functions needs intrinsification
rbackman
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diff
changeset
|
734 case vmIntrinsics::_subtractExactL: return inline_math_subtractExactL(false /* subtract */); |
| 12323 | 735 |
|
7194
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changeset
|
736 case vmIntrinsics::_arraycopy: return inline_arraycopy(); |
|
beebba0acc11
7172640: C2: instrinsic implementations in LibraryCallKit should use argument() instead of pop()
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changeset
|
737 |
|
beebba0acc11
7172640: C2: instrinsic implementations in LibraryCallKit should use argument() instead of pop()
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changeset
|
738 case vmIntrinsics::_compareTo: return inline_string_compareTo(); |
|
beebba0acc11
7172640: C2: instrinsic implementations in LibraryCallKit should use argument() instead of pop()
twisti
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|
739 case vmIntrinsics::_indexOf: return inline_string_indexOf(); |
|
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7172640: C2: instrinsic implementations in LibraryCallKit should use argument() instead of pop()
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|
740 case vmIntrinsics::_equals: return inline_string_equals(); |
|
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|
741 |
|
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|
742 case vmIntrinsics::_getObject: return inline_unsafe_access(!is_native_ptr, !is_store, T_OBJECT, !is_volatile); |
|
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|
743 case vmIntrinsics::_getBoolean: return inline_unsafe_access(!is_native_ptr, !is_store, T_BOOLEAN, !is_volatile); |
|
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|
744 case vmIntrinsics::_getByte: return inline_unsafe_access(!is_native_ptr, !is_store, T_BYTE, !is_volatile); |
|
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|
745 case vmIntrinsics::_getShort: return inline_unsafe_access(!is_native_ptr, !is_store, T_SHORT, !is_volatile); |
|
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|
746 case vmIntrinsics::_getChar: return inline_unsafe_access(!is_native_ptr, !is_store, T_CHAR, !is_volatile); |
|
beebba0acc11
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|
747 case vmIntrinsics::_getInt: return inline_unsafe_access(!is_native_ptr, !is_store, T_INT, !is_volatile); |
|
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|
748 case vmIntrinsics::_getLong: return inline_unsafe_access(!is_native_ptr, !is_store, T_LONG, !is_volatile); |
|
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changeset
|
749 case vmIntrinsics::_getFloat: return inline_unsafe_access(!is_native_ptr, !is_store, T_FLOAT, !is_volatile); |
|
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|
750 case vmIntrinsics::_getDouble: return inline_unsafe_access(!is_native_ptr, !is_store, T_DOUBLE, !is_volatile); |
|
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changeset
|
751 |
|
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7172640: C2: instrinsic implementations in LibraryCallKit should use argument() instead of pop()
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|
752 case vmIntrinsics::_putObject: return inline_unsafe_access(!is_native_ptr, is_store, T_OBJECT, !is_volatile); |
|
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|
753 case vmIntrinsics::_putBoolean: return inline_unsafe_access(!is_native_ptr, is_store, T_BOOLEAN, !is_volatile); |
|
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changeset
|
754 case vmIntrinsics::_putByte: return inline_unsafe_access(!is_native_ptr, is_store, T_BYTE, !is_volatile); |
|
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changeset
|
755 case vmIntrinsics::_putShort: return inline_unsafe_access(!is_native_ptr, is_store, T_SHORT, !is_volatile); |
|
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changeset
|
756 case vmIntrinsics::_putChar: return inline_unsafe_access(!is_native_ptr, is_store, T_CHAR, !is_volatile); |
|
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|
757 case vmIntrinsics::_putInt: return inline_unsafe_access(!is_native_ptr, is_store, T_INT, !is_volatile); |
|
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|
758 case vmIntrinsics::_putLong: return inline_unsafe_access(!is_native_ptr, is_store, T_LONG, !is_volatile); |
|
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changeset
|
759 case vmIntrinsics::_putFloat: return inline_unsafe_access(!is_native_ptr, is_store, T_FLOAT, !is_volatile); |
|
beebba0acc11
7172640: C2: instrinsic implementations in LibraryCallKit should use argument() instead of pop()
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changeset
|
760 case vmIntrinsics::_putDouble: return inline_unsafe_access(!is_native_ptr, is_store, T_DOUBLE, !is_volatile); |
|
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twisti
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changeset
|
761 |
|
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twisti
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changeset
|
762 case vmIntrinsics::_getByte_raw: return inline_unsafe_access( is_native_ptr, !is_store, T_BYTE, !is_volatile); |
|
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changeset
|
763 case vmIntrinsics::_getShort_raw: return inline_unsafe_access( is_native_ptr, !is_store, T_SHORT, !is_volatile); |
|
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changeset
|
764 case vmIntrinsics::_getChar_raw: return inline_unsafe_access( is_native_ptr, !is_store, T_CHAR, !is_volatile); |
|
beebba0acc11
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|
765 case vmIntrinsics::_getInt_raw: return inline_unsafe_access( is_native_ptr, !is_store, T_INT, !is_volatile); |
|
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twisti
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changeset
|
766 case vmIntrinsics::_getLong_raw: return inline_unsafe_access( is_native_ptr, !is_store, T_LONG, !is_volatile); |
|
beebba0acc11
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|
767 case vmIntrinsics::_getFloat_raw: return inline_unsafe_access( is_native_ptr, !is_store, T_FLOAT, !is_volatile); |
|
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changeset
|
768 case vmIntrinsics::_getDouble_raw: return inline_unsafe_access( is_native_ptr, !is_store, T_DOUBLE, !is_volatile); |
|
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twisti
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|
769 case vmIntrinsics::_getAddress_raw: return inline_unsafe_access( is_native_ptr, !is_store, T_ADDRESS, !is_volatile); |
|
beebba0acc11
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twisti
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diff
changeset
|
770 |
|
beebba0acc11
7172640: C2: instrinsic implementations in LibraryCallKit should use argument() instead of pop()
twisti
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diff
changeset
|
771 case vmIntrinsics::_putByte_raw: return inline_unsafe_access( is_native_ptr, is_store, T_BYTE, !is_volatile); |
|
beebba0acc11
7172640: C2: instrinsic implementations in LibraryCallKit should use argument() instead of pop()
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changeset
|
772 case vmIntrinsics::_putShort_raw: return inline_unsafe_access( is_native_ptr, is_store, T_SHORT, !is_volatile); |
|
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773 case vmIntrinsics::_putChar_raw: return inline_unsafe_access( is_native_ptr, is_store, T_CHAR, !is_volatile); |
|
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|
774 case vmIntrinsics::_putInt_raw: return inline_unsafe_access( is_native_ptr, is_store, T_INT, !is_volatile); |
|
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775 case vmIntrinsics::_putLong_raw: return inline_unsafe_access( is_native_ptr, is_store, T_LONG, !is_volatile); |
|
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|
776 case vmIntrinsics::_putFloat_raw: return inline_unsafe_access( is_native_ptr, is_store, T_FLOAT, !is_volatile); |
|
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777 case vmIntrinsics::_putDouble_raw: return inline_unsafe_access( is_native_ptr, is_store, T_DOUBLE, !is_volatile); |
|
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|
778 case vmIntrinsics::_putAddress_raw: return inline_unsafe_access( is_native_ptr, is_store, T_ADDRESS, !is_volatile); |
|
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|
779 |
|
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780 case vmIntrinsics::_getObjectVolatile: return inline_unsafe_access(!is_native_ptr, !is_store, T_OBJECT, is_volatile); |
|
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781 case vmIntrinsics::_getBooleanVolatile: return inline_unsafe_access(!is_native_ptr, !is_store, T_BOOLEAN, is_volatile); |
|
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782 case vmIntrinsics::_getByteVolatile: return inline_unsafe_access(!is_native_ptr, !is_store, T_BYTE, is_volatile); |
|
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783 case vmIntrinsics::_getShortVolatile: return inline_unsafe_access(!is_native_ptr, !is_store, T_SHORT, is_volatile); |
|
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|
784 case vmIntrinsics::_getCharVolatile: return inline_unsafe_access(!is_native_ptr, !is_store, T_CHAR, is_volatile); |
|
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|
785 case vmIntrinsics::_getIntVolatile: return inline_unsafe_access(!is_native_ptr, !is_store, T_INT, is_volatile); |
|
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786 case vmIntrinsics::_getLongVolatile: return inline_unsafe_access(!is_native_ptr, !is_store, T_LONG, is_volatile); |
|
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787 case vmIntrinsics::_getFloatVolatile: return inline_unsafe_access(!is_native_ptr, !is_store, T_FLOAT, is_volatile); |
|
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788 case vmIntrinsics::_getDoubleVolatile: return inline_unsafe_access(!is_native_ptr, !is_store, T_DOUBLE, is_volatile); |
|
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|
789 |
|
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790 case vmIntrinsics::_putObjectVolatile: return inline_unsafe_access(!is_native_ptr, is_store, T_OBJECT, is_volatile); |
|
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791 case vmIntrinsics::_putBooleanVolatile: return inline_unsafe_access(!is_native_ptr, is_store, T_BOOLEAN, is_volatile); |
|
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792 case vmIntrinsics::_putByteVolatile: return inline_unsafe_access(!is_native_ptr, is_store, T_BYTE, is_volatile); |
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|
793 case vmIntrinsics::_putShortVolatile: return inline_unsafe_access(!is_native_ptr, is_store, T_SHORT, is_volatile); |
|
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794 case vmIntrinsics::_putCharVolatile: return inline_unsafe_access(!is_native_ptr, is_store, T_CHAR, is_volatile); |
|
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|
795 case vmIntrinsics::_putIntVolatile: return inline_unsafe_access(!is_native_ptr, is_store, T_INT, is_volatile); |
|
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|
796 case vmIntrinsics::_putLongVolatile: return inline_unsafe_access(!is_native_ptr, is_store, T_LONG, is_volatile); |
|
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|
797 case vmIntrinsics::_putFloatVolatile: return inline_unsafe_access(!is_native_ptr, is_store, T_FLOAT, is_volatile); |
|
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|
798 case vmIntrinsics::_putDoubleVolatile: return inline_unsafe_access(!is_native_ptr, is_store, T_DOUBLE, is_volatile); |
|
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|
799 |
|
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|
800 case vmIntrinsics::_prefetchRead: return inline_unsafe_prefetch(!is_native_ptr, !is_store, !is_static); |
|
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|
801 case vmIntrinsics::_prefetchWrite: return inline_unsafe_prefetch(!is_native_ptr, is_store, !is_static); |
|
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|
802 case vmIntrinsics::_prefetchReadStatic: return inline_unsafe_prefetch(!is_native_ptr, !is_store, is_static); |
|
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|
803 case vmIntrinsics::_prefetchWriteStatic: return inline_unsafe_prefetch(!is_native_ptr, is_store, is_static); |
|
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|
804 |
|
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|
805 case vmIntrinsics::_compareAndSwapObject: return inline_unsafe_load_store(T_OBJECT, LS_cmpxchg); |
|
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|
806 case vmIntrinsics::_compareAndSwapInt: return inline_unsafe_load_store(T_INT, LS_cmpxchg); |
|
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|
807 case vmIntrinsics::_compareAndSwapLong: return inline_unsafe_load_store(T_LONG, LS_cmpxchg); |
|
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|
808 |
|
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|
809 case vmIntrinsics::_putOrderedObject: return inline_unsafe_ordered_store(T_OBJECT); |
|
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|
810 case vmIntrinsics::_putOrderedInt: return inline_unsafe_ordered_store(T_INT); |
|
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changeset
|
811 case vmIntrinsics::_putOrderedLong: return inline_unsafe_ordered_store(T_LONG); |
|
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|
812 |
|
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|
813 case vmIntrinsics::_getAndAddInt: return inline_unsafe_load_store(T_INT, LS_xadd); |
|
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|
814 case vmIntrinsics::_getAndAddLong: return inline_unsafe_load_store(T_LONG, LS_xadd); |
|
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|
815 case vmIntrinsics::_getAndSetInt: return inline_unsafe_load_store(T_INT, LS_xchg); |
|
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|
816 case vmIntrinsics::_getAndSetLong: return inline_unsafe_load_store(T_LONG, LS_xchg); |
|
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|
817 case vmIntrinsics::_getAndSetObject: return inline_unsafe_load_store(T_OBJECT, LS_xchg); |
|
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|
818 |
| 7425 | 819 case vmIntrinsics::_loadFence: |
| 820 case vmIntrinsics::_storeFence: | |
| 821 case vmIntrinsics::_fullFence: return inline_unsafe_fence(intrinsic_id()); | |
| 822 | |
|
7194
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823 case vmIntrinsics::_currentThread: return inline_native_currentThread(); |
|
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|
824 case vmIntrinsics::_isInterrupted: return inline_native_isInterrupted(); |
| 0 | 825 |
|
6006
0105f367a14c
7160570: Intrinsification support for tracing framework
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|
826 #ifdef TRACE_HAVE_INTRINSICS |
|
7194
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|
827 case vmIntrinsics::_classID: return inline_native_classID(); |
|
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828 case vmIntrinsics::_threadID: return inline_native_threadID(); |
|
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|
829 case vmIntrinsics::_counterTime: return inline_native_time_funcs(CAST_FROM_FN_PTR(address, TRACE_TIME_METHOD), "counterTime"); |
|
6006
0105f367a14c
7160570: Intrinsification support for tracing framework
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|
830 #endif |
|
7194
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|
831 case vmIntrinsics::_currentTimeMillis: return inline_native_time_funcs(CAST_FROM_FN_PTR(address, os::javaTimeMillis), "currentTimeMillis"); |
|
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|
832 case vmIntrinsics::_nanoTime: return inline_native_time_funcs(CAST_FROM_FN_PTR(address, os::javaTimeNanos), "nanoTime"); |
|
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|
833 case vmIntrinsics::_allocateInstance: return inline_unsafe_allocate(); |
|
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|
834 case vmIntrinsics::_copyMemory: return inline_unsafe_copyMemory(); |
|
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|
835 case vmIntrinsics::_newArray: return inline_native_newArray(); |
|
beebba0acc11
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|
836 case vmIntrinsics::_getLength: return inline_native_getLength(); |
|
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|
837 case vmIntrinsics::_copyOf: return inline_array_copyOf(false); |
|
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|
838 case vmIntrinsics::_copyOfRange: return inline_array_copyOf(true); |
|
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|
839 case vmIntrinsics::_equalsC: return inline_array_equals(); |
|
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|
840 case vmIntrinsics::_clone: return inline_native_clone(intrinsic()->is_virtual()); |
|
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|
841 |
|
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changeset
|
842 case vmIntrinsics::_isAssignableFrom: return inline_native_subtype_check(); |
| 0 | 843 |
| 844 case vmIntrinsics::_isInstance: | |
| 845 case vmIntrinsics::_getModifiers: | |
| 846 case vmIntrinsics::_isInterface: | |
| 847 case vmIntrinsics::_isArray: | |
| 848 case vmIntrinsics::_isPrimitive: | |
| 849 case vmIntrinsics::_getSuperclass: | |
| 850 case vmIntrinsics::_getComponentType: | |
|
7194
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|
851 case vmIntrinsics::_getClassAccessFlags: return inline_native_Class_query(intrinsic_id()); |
| 0 | 852 |
| 853 case vmIntrinsics::_floatToRawIntBits: | |
| 854 case vmIntrinsics::_floatToIntBits: | |
| 855 case vmIntrinsics::_intBitsToFloat: | |
| 856 case vmIntrinsics::_doubleToRawLongBits: | |
| 857 case vmIntrinsics::_doubleToLongBits: | |
|
7194
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|
858 case vmIntrinsics::_longBitsToDouble: return inline_fp_conversions(intrinsic_id()); |
| 0 | 859 |
|
775
93c14e5562c4
6823354: Add intrinsics for {Integer,Long}.{numberOfLeadingZeros,numberOfTrailingZeros}()
twisti
parents:
730
diff
changeset
|
860 case vmIntrinsics::_numberOfLeadingZeros_i: |
|
93c14e5562c4
6823354: Add intrinsics for {Integer,Long}.{numberOfLeadingZeros,numberOfTrailingZeros}()
twisti
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730
diff
changeset
|
861 case vmIntrinsics::_numberOfLeadingZeros_l: |
|
93c14e5562c4
6823354: Add intrinsics for {Integer,Long}.{numberOfLeadingZeros,numberOfTrailingZeros}()
twisti
parents:
730
diff
changeset
|
862 case vmIntrinsics::_numberOfTrailingZeros_i: |
|
93c14e5562c4
6823354: Add intrinsics for {Integer,Long}.{numberOfLeadingZeros,numberOfTrailingZeros}()
twisti
parents:
730
diff
changeset
|
863 case vmIntrinsics::_numberOfTrailingZeros_l: |
|
643
c771b7f43bbf
6378821: bitCount() should use POPC on SPARC processors and AMD+10h
twisti
parents:
605
diff
changeset
|
864 case vmIntrinsics::_bitCount_i: |
|
c771b7f43bbf
6378821: bitCount() should use POPC on SPARC processors and AMD+10h
twisti
parents:
605
diff
changeset
|
865 case vmIntrinsics::_bitCount_l: |
| 0 | 866 case vmIntrinsics::_reverseBytes_i: |
| 867 case vmIntrinsics::_reverseBytes_l: | |
|
1396
d7f654633cfe
6946040: add intrinsic for short and char reverseBytes
never
parents:
1152
diff
changeset
|
868 case vmIntrinsics::_reverseBytes_s: |
|
7194
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|
869 case vmIntrinsics::_reverseBytes_c: return inline_number_methods(intrinsic_id()); |
|
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|
870 |
|
beebba0acc11
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|
871 case vmIntrinsics::_getCallerClass: return inline_native_Reflection_getCallerClass(); |
|
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changeset
|
872 |
|
beebba0acc11
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changeset
|
873 case vmIntrinsics::_Reference_get: return inline_reference_get(); |
|
3249
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2385
diff
changeset
|
874 |
| 6894 | 875 case vmIntrinsics::_aescrypt_encryptBlock: |
|
7194
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changeset
|
876 case vmIntrinsics::_aescrypt_decryptBlock: return inline_aescrypt_Block(intrinsic_id()); |
| 6894 | 877 |
| 878 case vmIntrinsics::_cipherBlockChaining_encryptAESCrypt: | |
| 879 case vmIntrinsics::_cipherBlockChaining_decryptAESCrypt: | |
| 880 return inline_cipherBlockChaining_AESCrypt(intrinsic_id()); | |
| 881 | |
|
7637
b30b3c2a0cf2
6896617: Optimize sun.nio.cs.ISO_8859_1$Encode.encodeArrayLoop() on x86
kvn
parents:
7602
diff
changeset
|
882 case vmIntrinsics::_encodeISOArray: |
|
b30b3c2a0cf2
6896617: Optimize sun.nio.cs.ISO_8859_1$Encode.encodeArrayLoop() on x86
kvn
parents:
7602
diff
changeset
|
883 return inline_encodeISOArray(); |
|
b30b3c2a0cf2
6896617: Optimize sun.nio.cs.ISO_8859_1$Encode.encodeArrayLoop() on x86
kvn
parents:
7602
diff
changeset
|
884 |
|
11080
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10405
diff
changeset
|
885 case vmIntrinsics::_updateCRC32: |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
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10405
diff
changeset
|
886 return inline_updateCRC32(); |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
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diff
changeset
|
887 case vmIntrinsics::_updateBytesCRC32: |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
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10405
diff
changeset
|
888 return inline_updateBytesCRC32(); |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10405
diff
changeset
|
889 case vmIntrinsics::_updateByteBufferCRC32: |
|
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890 return inline_updateByteBufferCRC32(); |
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891 |
| 0 | 892 default: |
| 893 // If you get here, it may be that someone has added a new intrinsic | |
| 894 // to the list in vmSymbols.hpp without implementing it here. | |
| 895 #ifndef PRODUCT | |
| 896 if ((PrintMiscellaneous && (Verbose || WizardMode)) || PrintOpto) { | |
| 897 tty->print_cr("*** Warning: Unimplemented intrinsic %s(%d)", | |
| 898 vmIntrinsics::name_at(intrinsic_id()), intrinsic_id()); | |
| 899 } | |
| 900 #endif | |
| 901 return false; | |
| 902 } | |
| 903 } | |
| 904 | |
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905 Node* LibraryCallKit::try_to_predicate(int predicate) { |
| 6894 | 906 if (!jvms()->has_method()) { |
| 907 // Root JVMState has a null method. | |
| 908 assert(map()->memory()->Opcode() == Op_Parm, ""); | |
| 909 // Insert the memory aliasing node | |
| 910 set_all_memory(reset_memory()); | |
| 911 } | |
| 912 assert(merged_memory(), ""); | |
| 913 | |
| 914 switch (intrinsic_id()) { | |
| 915 case vmIntrinsics::_cipherBlockChaining_encryptAESCrypt: | |
| 916 return inline_cipherBlockChaining_AESCrypt_predicate(false); | |
| 917 case vmIntrinsics::_cipherBlockChaining_decryptAESCrypt: | |
| 918 return inline_cipherBlockChaining_AESCrypt_predicate(true); | |
| 919 | |
| 920 default: | |
| 921 // If you get here, it may be that someone has added a new intrinsic | |
| 922 // to the list in vmSymbols.hpp without implementing it here. | |
| 923 #ifndef PRODUCT | |
| 924 if ((PrintMiscellaneous && (Verbose || WizardMode)) || PrintOpto) { | |
| 925 tty->print_cr("*** Warning: Unimplemented predicate for intrinsic %s(%d)", | |
| 926 vmIntrinsics::name_at(intrinsic_id()), intrinsic_id()); | |
| 927 } | |
| 928 #endif | |
| 929 Node* slow_ctl = control(); | |
| 930 set_control(top()); // No fast path instrinsic | |
| 931 return slow_ctl; | |
| 932 } | |
| 933 } | |
| 934 | |
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935 //------------------------------set_result------------------------------- |
| 0 | 936 // Helper function for finishing intrinsics. |
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937 void LibraryCallKit::set_result(RegionNode* region, PhiNode* value) { |
| 0 | 938 record_for_igvn(region); |
| 939 set_control(_gvn.transform(region)); | |
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940 set_result( _gvn.transform(value)); |
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941 assert(value->type()->basic_type() == result()->bottom_type()->basic_type(), "sanity"); |
| 0 | 942 } |
| 943 | |
| 944 //------------------------------generate_guard--------------------------- | |
| 945 // Helper function for generating guarded fast-slow graph structures. | |
| 946 // The given 'test', if true, guards a slow path. If the test fails | |
| 947 // then a fast path can be taken. (We generally hope it fails.) | |
| 948 // In all cases, GraphKit::control() is updated to the fast path. | |
| 949 // The returned value represents the control for the slow path. | |
| 950 // The return value is never 'top'; it is either a valid control | |
| 951 // or NULL if it is obvious that the slow path can never be taken. | |
| 952 // Also, if region and the slow control are not NULL, the slow edge | |
| 953 // is appended to the region. | |
| 954 Node* LibraryCallKit::generate_guard(Node* test, RegionNode* region, float true_prob) { | |
| 955 if (stopped()) { | |
| 956 // Already short circuited. | |
| 957 return NULL; | |
| 958 } | |
| 959 | |
| 960 // Build an if node and its projections. | |
| 961 // If test is true we take the slow path, which we assume is uncommon. | |
| 962 if (_gvn.type(test) == TypeInt::ZERO) { | |
| 963 // The slow branch is never taken. No need to build this guard. | |
| 964 return NULL; | |
| 965 } | |
| 966 | |
| 967 IfNode* iff = create_and_map_if(control(), test, true_prob, COUNT_UNKNOWN); | |
| 968 | |
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969 Node* if_slow = _gvn.transform(new (C) IfTrueNode(iff)); |
| 0 | 970 if (if_slow == top()) { |
| 971 // The slow branch is never taken. No need to build this guard. | |
| 972 return NULL; | |
| 973 } | |
| 974 | |
| 975 if (region != NULL) | |
| 976 region->add_req(if_slow); | |
| 977 | |
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978 Node* if_fast = _gvn.transform(new (C) IfFalseNode(iff)); |
| 0 | 979 set_control(if_fast); |
| 980 | |
| 981 return if_slow; | |
| 982 } | |
| 983 | |
| 984 inline Node* LibraryCallKit::generate_slow_guard(Node* test, RegionNode* region) { | |
| 985 return generate_guard(test, region, PROB_UNLIKELY_MAG(3)); | |
| 986 } | |
| 987 inline Node* LibraryCallKit::generate_fair_guard(Node* test, RegionNode* region) { | |
| 988 return generate_guard(test, region, PROB_FAIR); | |
| 989 } | |
| 990 | |
| 991 inline Node* LibraryCallKit::generate_negative_guard(Node* index, RegionNode* region, | |
| 992 Node* *pos_index) { | |
| 993 if (stopped()) | |
| 994 return NULL; // already stopped | |
| 995 if (_gvn.type(index)->higher_equal(TypeInt::POS)) // [0,maxint] | |
| 996 return NULL; // index is already adequately typed | |
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997 Node* cmp_lt = _gvn.transform(new (C) CmpINode(index, intcon(0))); |
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998 Node* bol_lt = _gvn.transform(new (C) BoolNode(cmp_lt, BoolTest::lt)); |
| 0 | 999 Node* is_neg = generate_guard(bol_lt, region, PROB_MIN); |
| 1000 if (is_neg != NULL && pos_index != NULL) { | |
| 1001 // Emulate effect of Parse::adjust_map_after_if. | |
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1002 Node* ccast = new (C) CastIINode(index, TypeInt::POS); |
| 0 | 1003 ccast->set_req(0, control()); |
| 1004 (*pos_index) = _gvn.transform(ccast); | |
| 1005 } | |
| 1006 return is_neg; | |
| 1007 } | |
| 1008 | |
| 1009 inline Node* LibraryCallKit::generate_nonpositive_guard(Node* index, bool never_negative, | |
| 1010 Node* *pos_index) { | |
| 1011 if (stopped()) | |
| 1012 return NULL; // already stopped | |
| 1013 if (_gvn.type(index)->higher_equal(TypeInt::POS1)) // [1,maxint] | |
| 1014 return NULL; // index is already adequately typed | |
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1015 Node* cmp_le = _gvn.transform(new (C) CmpINode(index, intcon(0))); |
| 0 | 1016 BoolTest::mask le_or_eq = (never_negative ? BoolTest::eq : BoolTest::le); |
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1017 Node* bol_le = _gvn.transform(new (C) BoolNode(cmp_le, le_or_eq)); |
| 0 | 1018 Node* is_notp = generate_guard(bol_le, NULL, PROB_MIN); |
| 1019 if (is_notp != NULL && pos_index != NULL) { | |
| 1020 // Emulate effect of Parse::adjust_map_after_if. | |
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1021 Node* ccast = new (C) CastIINode(index, TypeInt::POS1); |
| 0 | 1022 ccast->set_req(0, control()); |
| 1023 (*pos_index) = _gvn.transform(ccast); | |
| 1024 } | |
| 1025 return is_notp; | |
| 1026 } | |
| 1027 | |
| 1028 // Make sure that 'position' is a valid limit index, in [0..length]. | |
| 1029 // There are two equivalent plans for checking this: | |
| 1030 // A. (offset + copyLength) unsigned<= arrayLength | |
| 1031 // B. offset <= (arrayLength - copyLength) | |
| 1032 // We require that all of the values above, except for the sum and | |
| 1033 // difference, are already known to be non-negative. | |
| 1034 // Plan A is robust in the face of overflow, if offset and copyLength | |
| 1035 // are both hugely positive. | |
| 1036 // | |
| 1037 // Plan B is less direct and intuitive, but it does not overflow at | |
| 1038 // all, since the difference of two non-negatives is always | |
| 1039 // representable. Whenever Java methods must perform the equivalent | |
| 1040 // check they generally use Plan B instead of Plan A. | |
| 1041 // For the moment we use Plan A. | |
| 1042 inline Node* LibraryCallKit::generate_limit_guard(Node* offset, | |
| 1043 Node* subseq_length, | |
| 1044 Node* array_length, | |
| 1045 RegionNode* region) { | |
| 1046 if (stopped()) | |
| 1047 return NULL; // already stopped | |
| 1048 bool zero_offset = _gvn.type(offset) == TypeInt::ZERO; | |
| 4778 | 1049 if (zero_offset && subseq_length->eqv_uncast(array_length)) |
| 0 | 1050 return NULL; // common case of whole-array copy |
| 1051 Node* last = subseq_length; | |
| 1052 if (!zero_offset) // last += offset | |
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1053 last = _gvn.transform(new (C) AddINode(last, offset)); |
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1054 Node* cmp_lt = _gvn.transform(new (C) CmpUNode(array_length, last)); |
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1055 Node* bol_lt = _gvn.transform(new (C) BoolNode(cmp_lt, BoolTest::lt)); |
| 0 | 1056 Node* is_over = generate_guard(bol_lt, region, PROB_MIN); |
| 1057 return is_over; | |
| 1058 } | |
| 1059 | |
| 1060 | |
| 1061 //--------------------------generate_current_thread-------------------- | |
| 1062 Node* LibraryCallKit::generate_current_thread(Node* &tls_output) { | |
| 1063 ciKlass* thread_klass = env()->Thread_klass(); | |
| 1064 const Type* thread_type = TypeOopPtr::make_from_klass(thread_klass)->cast_to_ptr_type(TypePtr::NotNull); | |
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1065 Node* thread = _gvn.transform(new (C) ThreadLocalNode()); |
| 0 | 1066 Node* p = basic_plus_adr(top()/*!oop*/, thread, in_bytes(JavaThread::threadObj_offset())); |
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1067 Node* threadObj = make_load(NULL, p, thread_type, T_OBJECT, MemNode::unordered); |
| 0 | 1068 tls_output = thread; |
| 1069 return threadObj; | |
| 1070 } | |
| 1071 | |
| 1072 | |
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1073 //------------------------------make_string_method_node------------------------ |
| 6057 | 1074 // Helper method for String intrinsic functions. This version is called |
| 1075 // with str1 and str2 pointing to String object nodes. | |
| 1076 // | |
| 1077 Node* LibraryCallKit::make_string_method_node(int opcode, Node* str1, Node* str2) { | |
|
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1078 Node* no_ctrl = NULL; |
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1079 |
| 6057 | 1080 // Get start addr of string |
| 1081 Node* str1_value = load_String_value(no_ctrl, str1); | |
| 1082 Node* str1_offset = load_String_offset(no_ctrl, str1); | |
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1083 Node* str1_start = array_element_address(str1_value, str1_offset, T_CHAR); |
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1084 |
| 6057 | 1085 // Get length of string 1 |
| 1086 Node* str1_len = load_String_length(no_ctrl, str1); | |
| 1087 | |
| 1088 Node* str2_value = load_String_value(no_ctrl, str2); | |
| 1089 Node* str2_offset = load_String_offset(no_ctrl, str2); | |
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1090 Node* str2_start = array_element_address(str2_value, str2_offset, T_CHAR); |
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1091 |
| 6057 | 1092 Node* str2_len = NULL; |
| 1093 Node* result = NULL; | |
| 1094 | |
| 1095 switch (opcode) { | |
| 1096 case Op_StrIndexOf: | |
| 1097 // Get length of string 2 | |
| 1098 str2_len = load_String_length(no_ctrl, str2); | |
| 1099 | |
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1100 result = new (C) StrIndexOfNode(control(), memory(TypeAryPtr::CHARS), |
| 6057 | 1101 str1_start, str1_len, str2_start, str2_len); |
| 1102 break; | |
| 1103 case Op_StrComp: | |
| 1104 // Get length of string 2 | |
| 1105 str2_len = load_String_length(no_ctrl, str2); | |
| 1106 | |
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1107 result = new (C) StrCompNode(control(), memory(TypeAryPtr::CHARS), |
| 6057 | 1108 str1_start, str1_len, str2_start, str2_len); |
| 1109 break; | |
| 1110 case Op_StrEquals: | |
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1111 result = new (C) StrEqualsNode(control(), memory(TypeAryPtr::CHARS), |
| 6057 | 1112 str1_start, str2_start, str1_len); |
| 1113 break; | |
| 1114 default: | |
| 1115 ShouldNotReachHere(); | |
| 1116 return NULL; | |
| 1117 } | |
| 1118 | |
| 1119 // All these intrinsics have checks. | |
| 1120 C->set_has_split_ifs(true); // Has chance for split-if optimization | |
| 1121 | |
| 1122 return _gvn.transform(result); | |
| 1123 } | |
| 1124 | |
| 1125 // Helper method for String intrinsic functions. This version is called | |
| 1126 // with str1 and str2 pointing to char[] nodes, with cnt1 and cnt2 pointing | |
| 1127 // to Int nodes containing the lenghts of str1 and str2. | |
| 1128 // | |
| 1129 Node* LibraryCallKit::make_string_method_node(int opcode, Node* str1_start, Node* cnt1, Node* str2_start, Node* cnt2) { | |
|
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1130 Node* result = NULL; |
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1131 switch (opcode) { |
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1132 case Op_StrIndexOf: |
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1133 result = new (C) StrIndexOfNode(control(), memory(TypeAryPtr::CHARS), |
| 6057 | 1134 str1_start, cnt1, str2_start, cnt2); |
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1135 break; |
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1136 case Op_StrComp: |
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1137 result = new (C) StrCompNode(control(), memory(TypeAryPtr::CHARS), |
| 6057 | 1138 str1_start, cnt1, str2_start, cnt2); |
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1139 break; |
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1140 case Op_StrEquals: |
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1141 result = new (C) StrEqualsNode(control(), memory(TypeAryPtr::CHARS), |
| 6057 | 1142 str1_start, str2_start, cnt1); |
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1143 break; |
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1144 default: |
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1145 ShouldNotReachHere(); |
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1146 return NULL; |
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1147 } |
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1148 |
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1149 // All these intrinsics have checks. |
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1150 C->set_has_split_ifs(true); // Has chance for split-if optimization |
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1151 |
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1152 return _gvn.transform(result); |
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1153 } |
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1154 |
| 0 | 1155 //------------------------------inline_string_compareTo------------------------ |
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1156 // public int java.lang.String.compareTo(String anotherString); |
| 0 | 1157 bool LibraryCallKit::inline_string_compareTo() { |
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1158 Node* receiver = null_check(argument(0)); |
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1159 Node* arg = null_check(argument(1)); |
| 0 | 1160 if (stopped()) { |
| 1161 return true; | |
| 1162 } | |
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1163 set_result(make_string_method_node(Op_StrComp, receiver, arg)); |
| 0 | 1164 return true; |
| 1165 } | |
| 1166 | |
| 681 | 1167 //------------------------------inline_string_equals------------------------ |
| 1168 bool LibraryCallKit::inline_string_equals() { | |
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1169 Node* receiver = null_check_receiver(); |
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1170 // NOTE: Do not null check argument for String.equals() because spec |
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1171 // allows to specify NULL as argument. |
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1172 Node* argument = this->argument(1); |
| 681 | 1173 if (stopped()) { |
| 1174 return true; | |
| 1175 } | |
| 1176 | |
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1177 // paths (plus control) merge |
|
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1178 RegionNode* region = new (C) RegionNode(5); |
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1179 Node* phi = new (C) PhiNode(region, TypeInt::BOOL); |
|
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1180 |
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1181 // does source == target string? |
|
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1182 Node* cmp = _gvn.transform(new (C) CmpPNode(receiver, argument)); |
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1183 Node* bol = _gvn.transform(new (C) BoolNode(cmp, BoolTest::eq)); |
|
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1184 |
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1185 Node* if_eq = generate_slow_guard(bol, NULL); |
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1186 if (if_eq != NULL) { |
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1187 // receiver == argument |
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1188 phi->init_req(2, intcon(1)); |
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1189 region->init_req(2, if_eq); |
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1190 } |
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1191 |
| 681 | 1192 // get String klass for instanceOf |
| 1193 ciInstanceKlass* klass = env()->String_klass(); | |
| 1194 | |
|
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1195 if (!stopped()) { |
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1196 Node* inst = gen_instanceof(argument, makecon(TypeKlassPtr::make(klass))); |
|
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1197 Node* cmp = _gvn.transform(new (C) CmpINode(inst, intcon(1))); |
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1198 Node* bol = _gvn.transform(new (C) BoolNode(cmp, BoolTest::ne)); |
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1199 |
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1200 Node* inst_false = generate_guard(bol, NULL, PROB_MIN); |
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1201 //instanceOf == true, fallthrough |
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1202 |
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1203 if (inst_false != NULL) { |
|
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1204 phi->init_req(3, intcon(0)); |
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|
1205 region->init_req(3, inst_false); |
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|
1206 } |
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1207 } |
| 681 | 1208 |
|
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1209 if (!stopped()) { |
| 6057 | 1210 const TypeOopPtr* string_type = TypeOopPtr::make_from_klass(klass); |
| 1211 | |
|
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1212 // Properly cast the argument to String |
|
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1213 argument = _gvn.transform(new (C) CheckCastPPNode(control(), argument, string_type)); |
|
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1214 // This path is taken only when argument's type is String:NotNull. |
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1215 argument = cast_not_null(argument, false); |
|
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1216 |
| 6057 | 1217 Node* no_ctrl = NULL; |
| 1218 | |
| 1219 // Get start addr of receiver | |
| 1220 Node* receiver_val = load_String_value(no_ctrl, receiver); | |
| 1221 Node* receiver_offset = load_String_offset(no_ctrl, receiver); | |
| 1222 Node* receiver_start = array_element_address(receiver_val, receiver_offset, T_CHAR); | |
| 1223 | |
| 1224 // Get length of receiver | |
| 1225 Node* receiver_cnt = load_String_length(no_ctrl, receiver); | |
| 1226 | |
| 1227 // Get start addr of argument | |
|
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1228 Node* argument_val = load_String_value(no_ctrl, argument); |
| 6057 | 1229 Node* argument_offset = load_String_offset(no_ctrl, argument); |
| 1230 Node* argument_start = array_element_address(argument_val, argument_offset, T_CHAR); | |
| 1231 | |
| 1232 // Get length of argument | |
| 1233 Node* argument_cnt = load_String_length(no_ctrl, argument); | |
|
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1234 |
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1235 // Check for receiver count != argument count |
|
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1236 Node* cmp = _gvn.transform(new(C) CmpINode(receiver_cnt, argument_cnt)); |
|
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1237 Node* bol = _gvn.transform(new(C) BoolNode(cmp, BoolTest::ne)); |
|
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1238 Node* if_ne = generate_slow_guard(bol, NULL); |
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1239 if (if_ne != NULL) { |
|
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1240 phi->init_req(4, intcon(0)); |
|
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1241 region->init_req(4, if_ne); |
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1242 } |
| 6057 | 1243 |
| 1244 // Check for count == 0 is done by assembler code for StrEquals. | |
| 1245 | |
| 1246 if (!stopped()) { | |
| 1247 Node* equals = make_string_method_node(Op_StrEquals, receiver_start, receiver_cnt, argument_start, argument_cnt); | |
| 1248 phi->init_req(1, equals); | |
| 1249 region->init_req(1, control()); | |
| 1250 } | |
|
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1251 } |
| 681 | 1252 |
| 1253 // post merge | |
| 1254 set_control(_gvn.transform(region)); | |
| 1255 record_for_igvn(region); | |
| 1256 | |
|
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1257 set_result(_gvn.transform(phi)); |
| 681 | 1258 return true; |
| 1259 } | |
| 1260 | |
|
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1261 //------------------------------inline_array_equals---------------------------- |
|
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1262 bool LibraryCallKit::inline_array_equals() { |
|
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1263 Node* arg1 = argument(0); |
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1264 Node* arg2 = argument(1); |
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1265 set_result(_gvn.transform(new (C) AryEqNode(control(), memory(TypeAryPtr::CHARS), arg1, arg2))); |
|
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1266 return true; |
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|
1267 } |
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1268 |
| 0 | 1269 // Java version of String.indexOf(constant string) |
| 1270 // class StringDecl { | |
| 1271 // StringDecl(char[] ca) { | |
| 1272 // offset = 0; | |
| 1273 // count = ca.length; | |
| 1274 // value = ca; | |
| 1275 // } | |
| 1276 // int offset; | |
| 1277 // int count; | |
| 1278 // char[] value; | |
| 1279 // } | |
| 1280 // | |
| 1281 // static int string_indexOf_J(StringDecl string_object, char[] target_object, | |
| 1282 // int targetOffset, int cache_i, int md2) { | |
| 1283 // int cache = cache_i; | |
| 1284 // int sourceOffset = string_object.offset; | |
| 1285 // int sourceCount = string_object.count; | |
| 1286 // int targetCount = target_object.length; | |
| 1287 // | |
| 1288 // int targetCountLess1 = targetCount - 1; | |
| 1289 // int sourceEnd = sourceOffset + sourceCount - targetCountLess1; | |
| 1290 // | |
| 1291 // char[] source = string_object.value; | |
| 1292 // char[] target = target_object; | |
| 1293 // int lastChar = target[targetCountLess1]; | |
| 1294 // | |
| 1295 // outer_loop: | |
| 1296 // for (int i = sourceOffset; i < sourceEnd; ) { | |
| 1297 // int src = source[i + targetCountLess1]; | |
| 1298 // if (src == lastChar) { | |
| 1299 // // With random strings and a 4-character alphabet, | |
| 1300 // // reverse matching at this point sets up 0.8% fewer | |
| 1301 // // frames, but (paradoxically) makes 0.3% more probes. | |
| 1302 // // Since those probes are nearer the lastChar probe, | |
| 1303 // // there is may be a net D$ win with reverse matching. | |
| 1304 // // But, reversing loop inhibits unroll of inner loop | |
| 1305 // // for unknown reason. So, does running outer loop from | |
| 1306 // // (sourceOffset - targetCountLess1) to (sourceOffset + sourceCount) | |
| 1307 // for (int j = 0; j < targetCountLess1; j++) { | |
| 1308 // if (target[targetOffset + j] != source[i+j]) { | |
| 1309 // if ((cache & (1 << source[i+j])) == 0) { | |
| 1310 // if (md2 < j+1) { | |
| 1311 // i += j+1; | |
| 1312 // continue outer_loop; | |
| 1313 // } | |
| 1314 // } | |
| 1315 // i += md2; | |
| 1316 // continue outer_loop; | |
| 1317 // } | |
| 1318 // } | |
| 1319 // return i - sourceOffset; | |
| 1320 // } | |
| 1321 // if ((cache & (1 << src)) == 0) { | |
| 1322 // i += targetCountLess1; | |
| 1323 // } // using "i += targetCount;" and an "else i++;" causes a jump to jump. | |
| 1324 // i++; | |
| 1325 // } | |
| 1326 // return -1; | |
| 1327 // } | |
| 1328 | |
| 1329 //------------------------------string_indexOf------------------------ | |
| 1330 Node* LibraryCallKit::string_indexOf(Node* string_object, ciTypeArray* target_array, jint targetOffset_i, | |
| 1331 jint cache_i, jint md2_i) { | |
| 1332 | |
| 1333 Node* no_ctrl = NULL; | |
| 1334 float likely = PROB_LIKELY(0.9); | |
| 1335 float unlikely = PROB_UNLIKELY(0.9); | |
| 1336 | |
|
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1337 const int nargs = 0; // no arguments to push back for uncommon trap in predicate |
|
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1338 |
| 6057 | 1339 Node* source = load_String_value(no_ctrl, string_object); |
| 1340 Node* sourceOffset = load_String_offset(no_ctrl, string_object); | |
| 1341 Node* sourceCount = load_String_length(no_ctrl, string_object); | |
| 0 | 1342 |
|
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1343 Node* target = _gvn.transform( makecon(TypeOopPtr::make_from_constant(target_array, true))); |
| 0 | 1344 jint target_length = target_array->length(); |
| 1345 const TypeAry* target_array_type = TypeAry::make(TypeInt::CHAR, TypeInt::make(0, target_length, Type::WidenMin)); | |
| 1346 const TypeAryPtr* target_type = TypeAryPtr::make(TypePtr::BotPTR, target_array_type, target_array->klass(), true, Type::OffsetBot); | |
| 1347 | |
|
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1348 // String.value field is known to be @Stable. |
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1349 if (UseImplicitStableValues) { |
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1350 target = cast_array_to_stable(target, target_type); |
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1351 } |
|
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1352 |
|
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1353 IdealKit kit(this, false, true); |
| 0 | 1354 #define __ kit. |
| 1355 Node* zero = __ ConI(0); | |
| 1356 Node* one = __ ConI(1); | |
| 1357 Node* cache = __ ConI(cache_i); | |
| 1358 Node* md2 = __ ConI(md2_i); | |
| 1359 Node* lastChar = __ ConI(target_array->char_at(target_length - 1)); | |
| 1360 Node* targetCount = __ ConI(target_length); | |
| 1361 Node* targetCountLess1 = __ ConI(target_length - 1); | |
| 1362 Node* targetOffset = __ ConI(targetOffset_i); | |
| 1363 Node* sourceEnd = __ SubI(__ AddI(sourceOffset, sourceCount), targetCountLess1); | |
| 1364 | |
|
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1365 IdealVariable rtn(kit), i(kit), j(kit); __ declarations_done(); |
| 0 | 1366 Node* outer_loop = __ make_label(2 /* goto */); |
| 1367 Node* return_ = __ make_label(1); | |
| 1368 | |
| 1369 __ set(rtn,__ ConI(-1)); | |
|
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1370 __ loop(this, nargs, i, sourceOffset, BoolTest::lt, sourceEnd); { |
| 0 | 1371 Node* i2 = __ AddI(__ value(i), targetCountLess1); |
| 1372 // pin to prohibit loading of "next iteration" value which may SEGV (rare) | |
| 1373 Node* src = load_array_element(__ ctrl(), source, i2, TypeAryPtr::CHARS); | |
| 1374 __ if_then(src, BoolTest::eq, lastChar, unlikely); { | |
|
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1375 __ loop(this, nargs, j, zero, BoolTest::lt, targetCountLess1); { |
| 0 | 1376 Node* tpj = __ AddI(targetOffset, __ value(j)); |
| 1377 Node* targ = load_array_element(no_ctrl, target, tpj, target_type); | |
| 1378 Node* ipj = __ AddI(__ value(i), __ value(j)); | |
| 1379 Node* src2 = load_array_element(no_ctrl, source, ipj, TypeAryPtr::CHARS); | |
| 1380 __ if_then(targ, BoolTest::ne, src2); { | |
| 1381 __ if_then(__ AndI(cache, __ LShiftI(one, src2)), BoolTest::eq, zero); { | |
| 1382 __ if_then(md2, BoolTest::lt, __ AddI(__ value(j), one)); { | |
| 1383 __ increment(i, __ AddI(__ value(j), one)); | |
| 1384 __ goto_(outer_loop); | |
| 1385 } __ end_if(); __ dead(j); | |
| 1386 }__ end_if(); __ dead(j); | |
| 1387 __ increment(i, md2); | |
| 1388 __ goto_(outer_loop); | |
| 1389 }__ end_if(); | |
| 1390 __ increment(j, one); | |
| 1391 }__ end_loop(); __ dead(j); | |
| 1392 __ set(rtn, __ SubI(__ value(i), sourceOffset)); __ dead(i); | |
| 1393 __ goto_(return_); | |
| 1394 }__ end_if(); | |
| 1395 __ if_then(__ AndI(cache, __ LShiftI(one, src)), BoolTest::eq, zero, likely); { | |
| 1396 __ increment(i, targetCountLess1); | |
| 1397 }__ end_if(); | |
| 1398 __ increment(i, one); | |
| 1399 __ bind(outer_loop); | |
| 1400 }__ end_loop(); __ dead(i); | |
| 1401 __ bind(return_); | |
|
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1402 |
|
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1403 // Final sync IdealKit and GraphKit. |
|
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1404 final_sync(kit); |
| 0 | 1405 Node* result = __ value(rtn); |
| 1406 #undef __ | |
| 1407 C->set_has_loops(true); | |
| 1408 return result; | |
| 1409 } | |
| 1410 | |
| 1411 //------------------------------inline_string_indexOf------------------------ | |
| 1412 bool LibraryCallKit::inline_string_indexOf() { | |
|
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1413 Node* receiver = argument(0); |
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1414 Node* arg = argument(1); |
| 681 | 1415 |
| 1416 Node* result; | |
|
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1417 // Disable the use of pcmpestri until it can be guaranteed that |
|
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|
1418 // the load doesn't cross into the uncommited space. |
|
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|
1419 if (Matcher::has_match_rule(Op_StrIndexOf) && |
| 681 | 1420 UseSSE42Intrinsics) { |
| 1421 // Generate SSE4.2 version of indexOf | |
| 1422 // We currently only have match rules that use SSE4.2 | |
| 1423 | |
|
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1424 receiver = null_check(receiver); |
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1425 arg = null_check(arg); |
| 681 | 1426 if (stopped()) { |
| 1427 return true; | |
| 1428 } | |
| 1429 | |
|
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1430 ciInstanceKlass* str_klass = env()->String_klass(); |
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1431 const TypeOopPtr* string_type = TypeOopPtr::make_from_klass(str_klass); |
|
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1432 |
|
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1433 // Make the merge point |
|
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1434 RegionNode* result_rgn = new (C) RegionNode(4); |
|
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1435 Node* result_phi = new (C) PhiNode(result_rgn, TypeInt::INT); |
|
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1436 Node* no_ctrl = NULL; |
|
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1437 |
| 6057 | 1438 // Get start addr of source string |
| 1439 Node* source = load_String_value(no_ctrl, receiver); | |
| 1440 Node* source_offset = load_String_offset(no_ctrl, receiver); | |
| 1441 Node* source_start = array_element_address(source, source_offset, T_CHAR); | |
| 1442 | |
| 1443 // Get length of source string | |
| 1444 Node* source_cnt = load_String_length(no_ctrl, receiver); | |
| 1445 | |
| 1446 // Get start addr of substring | |
|
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1447 Node* substr = load_String_value(no_ctrl, arg); |
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1448 Node* substr_offset = load_String_offset(no_ctrl, arg); |
| 6057 | 1449 Node* substr_start = array_element_address(substr, substr_offset, T_CHAR); |
| 1450 | |
| 1451 // Get length of source string | |
|
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1452 Node* substr_cnt = load_String_length(no_ctrl, arg); |
|
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1453 |
|
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1454 // Check for substr count > string count |
|
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1455 Node* cmp = _gvn.transform(new(C) CmpINode(substr_cnt, source_cnt)); |
|
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1456 Node* bol = _gvn.transform(new(C) BoolNode(cmp, BoolTest::gt)); |
|
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1457 Node* if_gt = generate_slow_guard(bol, NULL); |
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1458 if (if_gt != NULL) { |
|
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|
1459 result_phi->init_req(2, intcon(-1)); |
|
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1460 result_rgn->init_req(2, if_gt); |
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1461 } |
|
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1462 |
|
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1463 if (!stopped()) { |
|
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1464 // Check for substr count == 0 |
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1465 cmp = _gvn.transform(new(C) CmpINode(substr_cnt, intcon(0))); |
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1466 bol = _gvn.transform(new(C) BoolNode(cmp, BoolTest::eq)); |
|
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1467 Node* if_zero = generate_slow_guard(bol, NULL); |
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1468 if (if_zero != NULL) { |
|
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1469 result_phi->init_req(3, intcon(0)); |
|
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1470 result_rgn->init_req(3, if_zero); |
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1471 } |
|
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|
1472 } |
|
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1473 |
|
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|
1474 if (!stopped()) { |
| 6057 | 1475 result = make_string_method_node(Op_StrIndexOf, source_start, source_cnt, substr_start, substr_cnt); |
|
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1476 result_phi->init_req(1, result); |
|
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|
1477 result_rgn->init_req(1, control()); |
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1478 } |
|
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|
1479 set_control(_gvn.transform(result_rgn)); |
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|
1480 record_for_igvn(result_rgn); |
|
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|
1481 result = _gvn.transform(result_phi); |
|
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|
1482 |
|
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1483 } else { // Use LibraryCallKit::string_indexOf |
|
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|
1484 // don't intrinsify if argument isn't a constant string. |
|
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1485 if (!arg->is_Con()) { |
| 681 | 1486 return false; |
| 1487 } | |
|
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|
1488 const TypeOopPtr* str_type = _gvn.type(arg)->isa_oopptr(); |
| 681 | 1489 if (str_type == NULL) { |
| 1490 return false; | |
| 1491 } | |
| 1492 ciInstanceKlass* klass = env()->String_klass(); | |
| 1493 ciObject* str_const = str_type->const_oop(); | |
| 1494 if (str_const == NULL || str_const->klass() != klass) { | |
| 1495 return false; | |
| 1496 } | |
| 1497 ciInstance* str = str_const->as_instance(); | |
| 1498 assert(str != NULL, "must be instance"); | |
| 1499 | |
| 6057 | 1500 ciObject* v = str->field_value_by_offset(java_lang_String::value_offset_in_bytes()).as_object(); |
| 681 | 1501 ciTypeArray* pat = v->as_type_array(); // pattern (argument) character array |
| 1502 | |
| 6057 | 1503 int o; |
| 1504 int c; | |
| 1505 if (java_lang_String::has_offset_field()) { | |
| 1506 o = str->field_value_by_offset(java_lang_String::offset_offset_in_bytes()).as_int(); | |
| 1507 c = str->field_value_by_offset(java_lang_String::count_offset_in_bytes()).as_int(); | |
| 1508 } else { | |
| 1509 o = 0; | |
| 1510 c = pat->length(); | |
| 1511 } | |
| 1512 | |
| 681 | 1513 // constant strings have no offset and count == length which |
| 1514 // simplifies the resulting code somewhat so lets optimize for that. | |
| 1515 if (o != 0 || c != pat->length()) { | |
| 1516 return false; | |
| 1517 } | |
| 1518 | |
|
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1519 receiver = null_check(receiver, T_OBJECT); |
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1520 // NOTE: No null check on the argument is needed since it's a constant String oop. |
| 681 | 1521 if (stopped()) { |
|
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1522 return true; |
| 681 | 1523 } |
| 1524 | |
| 1525 // The null string as a pattern always returns 0 (match at beginning of string) | |
| 1526 if (c == 0) { | |
|
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|
1527 set_result(intcon(0)); |
| 681 | 1528 return true; |
| 1529 } | |
| 1530 | |
| 1531 // Generate default indexOf | |
| 1532 jchar lastChar = pat->char_at(o + (c - 1)); | |
| 1533 int cache = 0; | |
| 1534 int i; | |
| 1535 for (i = 0; i < c - 1; i++) { | |
| 1536 assert(i < pat->length(), "out of range"); | |
| 1537 cache |= (1 << (pat->char_at(o + i) & (sizeof(cache) * BitsPerByte - 1))); | |
| 1538 } | |
| 1539 | |
| 1540 int md2 = c; | |
| 1541 for (i = 0; i < c - 1; i++) { | |
| 1542 assert(i < pat->length(), "out of range"); | |
| 1543 if (pat->char_at(o + i) == lastChar) { | |
| 1544 md2 = (c - 1) - i; | |
| 1545 } | |
| 1546 } | |
| 1547 | |
| 1548 result = string_indexOf(receiver, pat, o, cache, md2); | |
| 0 | 1549 } |
|
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1550 set_result(result); |
| 0 | 1551 return true; |
| 1552 } | |
| 1553 | |
|
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1554 //--------------------------round_double_node-------------------------------- |
|
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1555 // Round a double node if necessary. |
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1556 Node* LibraryCallKit::round_double_node(Node* n) { |
|
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1557 if (Matcher::strict_fp_requires_explicit_rounding && UseSSE <= 1) |
|
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1558 n = _gvn.transform(new (C) RoundDoubleNode(0, n)); |
|
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1559 return n; |
|
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1560 } |
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1561 |
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1562 //------------------------------inline_math----------------------------------- |
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1563 // public static double Math.abs(double) |
|
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1564 // public static double Math.sqrt(double) |
|
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1565 // public static double Math.log(double) |
|
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1566 // public static double Math.log10(double) |
|
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1567 bool LibraryCallKit::inline_math(vmIntrinsics::ID id) { |
|
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1568 Node* arg = round_double_node(argument(0)); |
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1569 Node* n; |
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1570 switch (id) { |
|
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1571 case vmIntrinsics::_dabs: n = new (C) AbsDNode( arg); break; |
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1572 case vmIntrinsics::_dsqrt: n = new (C) SqrtDNode(C, control(), arg); break; |
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1573 case vmIntrinsics::_dlog: n = new (C) LogDNode(C, control(), arg); break; |
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|
1574 case vmIntrinsics::_dlog10: n = new (C) Log10DNode(C, control(), arg); break; |
|
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1575 default: fatal_unexpected_iid(id); break; |
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|
1576 } |
|
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|
1577 set_result(_gvn.transform(n)); |
|
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|
1578 return true; |
| 0 | 1579 } |
| 1580 | |
| 1581 //------------------------------inline_trig---------------------------------- | |
| 1582 // Inline sin/cos/tan instructions, if possible. If rounding is required, do | |
| 1583 // argument reduction which will turn into a fast/slow diamond. | |
| 1584 bool LibraryCallKit::inline_trig(vmIntrinsics::ID id) { | |
|
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1585 Node* arg = round_double_node(argument(0)); |
|
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|
1586 Node* n = NULL; |
| 0 | 1587 |
| 1588 switch (id) { | |
|
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|
1589 case vmIntrinsics::_dsin: n = new (C) SinDNode(C, control(), arg); break; |
|
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|
1590 case vmIntrinsics::_dcos: n = new (C) CosDNode(C, control(), arg); break; |
|
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|
1591 case vmIntrinsics::_dtan: n = new (C) TanDNode(C, control(), arg); break; |
|
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1592 default: fatal_unexpected_iid(id); break; |
| 0 | 1593 } |
|
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|
1594 n = _gvn.transform(n); |
| 0 | 1595 |
| 1596 // Rounding required? Check for argument reduction! | |
|
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|
1597 if (Matcher::strict_fp_requires_explicit_rounding) { |
| 0 | 1598 static const double pi_4 = 0.7853981633974483; |
| 1599 static const double neg_pi_4 = -0.7853981633974483; | |
| 1600 // pi/2 in 80-bit extended precision | |
| 1601 // static const unsigned char pi_2_bits_x[] = {0x35,0xc2,0x68,0x21,0xa2,0xda,0x0f,0xc9,0xff,0x3f,0x00,0x00,0x00,0x00,0x00,0x00}; | |
| 1602 // -pi/2 in 80-bit extended precision | |
| 1603 // static const unsigned char neg_pi_2_bits_x[] = {0x35,0xc2,0x68,0x21,0xa2,0xda,0x0f,0xc9,0xff,0xbf,0x00,0x00,0x00,0x00,0x00,0x00}; | |
| 1604 // Cutoff value for using this argument reduction technique | |
| 1605 //static const double pi_2_minus_epsilon = 1.564660403643354; | |
| 1606 //static const double neg_pi_2_plus_epsilon = -1.564660403643354; | |
| 1607 | |
| 1608 // Pseudocode for sin: | |
| 1609 // if (x <= Math.PI / 4.0) { | |
| 1610 // if (x >= -Math.PI / 4.0) return fsin(x); | |
| 1611 // if (x >= -Math.PI / 2.0) return -fcos(x + Math.PI / 2.0); | |
| 1612 // } else { | |
| 1613 // if (x <= Math.PI / 2.0) return fcos(x - Math.PI / 2.0); | |
| 1614 // } | |
| 1615 // return StrictMath.sin(x); | |
| 1616 | |
| 1617 // Pseudocode for cos: | |
| 1618 // if (x <= Math.PI / 4.0) { | |
| 1619 // if (x >= -Math.PI / 4.0) return fcos(x); | |
| 1620 // if (x >= -Math.PI / 2.0) return fsin(x + Math.PI / 2.0); | |
| 1621 // } else { | |
| 1622 // if (x <= Math.PI / 2.0) return -fsin(x - Math.PI / 2.0); | |
| 1623 // } | |
| 1624 // return StrictMath.cos(x); | |
| 1625 | |
| 1626 // Actually, sticking in an 80-bit Intel value into C2 will be tough; it | |
| 1627 // requires a special machine instruction to load it. Instead we'll try | |
| 1628 // the 'easy' case. If we really need the extra range +/- PI/2 we'll | |
| 1629 // probably do the math inside the SIN encoding. | |
| 1630 | |
| 1631 // Make the merge point | |
|
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1632 RegionNode* r = new (C) RegionNode(3); |
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1633 Node* phi = new (C) PhiNode(r, Type::DOUBLE); |
| 0 | 1634 |
| 1635 // Flatten arg so we need only 1 test | |
|
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|
1636 Node *abs = _gvn.transform(new (C) AbsDNode(arg)); |
| 0 | 1637 // Node for PI/4 constant |
| 1638 Node *pi4 = makecon(TypeD::make(pi_4)); | |
| 1639 // Check PI/4 : abs(arg) | |
|
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1640 Node *cmp = _gvn.transform(new (C) CmpDNode(pi4,abs)); |
| 0 | 1641 // Check: If PI/4 < abs(arg) then go slow |
|
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1642 Node *bol = _gvn.transform(new (C) BoolNode( cmp, BoolTest::lt )); |
| 0 | 1643 // Branch either way |
| 1644 IfNode *iff = create_and_xform_if(control(),bol, PROB_STATIC_FREQUENT, COUNT_UNKNOWN); | |
| 1645 set_control(opt_iff(r,iff)); | |
| 1646 | |
| 1647 // Set fast path result | |
|
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|
1648 phi->init_req(2, n); |
| 0 | 1649 |
| 1650 // Slow path - non-blocking leaf call | |
| 1651 Node* call = NULL; | |
| 1652 switch (id) { | |
| 1653 case vmIntrinsics::_dsin: | |
| 1654 call = make_runtime_call(RC_LEAF, OptoRuntime::Math_D_D_Type(), | |
| 1655 CAST_FROM_FN_PTR(address, SharedRuntime::dsin), | |
| 1656 "Sin", NULL, arg, top()); | |
| 1657 break; | |
| 1658 case vmIntrinsics::_dcos: | |
| 1659 call = make_runtime_call(RC_LEAF, OptoRuntime::Math_D_D_Type(), | |
| 1660 CAST_FROM_FN_PTR(address, SharedRuntime::dcos), | |
| 1661 "Cos", NULL, arg, top()); | |
| 1662 break; | |
| 1663 case vmIntrinsics::_dtan: | |
| 1664 call = make_runtime_call(RC_LEAF, OptoRuntime::Math_D_D_Type(), | |
| 1665 CAST_FROM_FN_PTR(address, SharedRuntime::dtan), | |
| 1666 "Tan", NULL, arg, top()); | |
| 1667 break; | |
| 1668 } | |
| 1669 assert(control()->in(0) == call, ""); | |
|
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|
1670 Node* slow_result = _gvn.transform(new (C) ProjNode(call, TypeFunc::Parms)); |
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|
1671 r->init_req(1, control()); |
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|
1672 phi->init_req(1, slow_result); |
| 0 | 1673 |
| 1674 // Post-merge | |
| 1675 set_control(_gvn.transform(r)); | |
| 1676 record_for_igvn(r); | |
|
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|
1677 n = _gvn.transform(phi); |
| 0 | 1678 |
| 1679 C->set_has_split_ifs(true); // Has chance for split-if optimization | |
| 1680 } | |
|
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|
1681 set_result(n); |
| 0 | 1682 return true; |
| 1683 } | |
| 1684 | |
|
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|
1685 Node* LibraryCallKit::finish_pow_exp(Node* result, Node* x, Node* y, const TypeFunc* call_type, address funcAddr, const char* funcName) { |
| 6205 | 1686 //------------------- |
| 1687 //result=(result.isNaN())? funcAddr():result; | |
| 1688 // Check: If isNaN() by checking result!=result? then either trap | |
| 1689 // or go to runtime | |
|
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|
1690 Node* cmpisnan = _gvn.transform(new (C) CmpDNode(result, result)); |
| 6205 | 1691 // Build the boolean node |
|
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|
1692 Node* bolisnum = _gvn.transform(new (C) BoolNode(cmpisnan, BoolTest::eq)); |
| 6205 | 1693 |
| 1694 if (!too_many_traps(Deoptimization::Reason_intrinsic)) { | |
|
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|
1695 { BuildCutout unless(this, bolisnum, PROB_STATIC_FREQUENT); |
| 6205 | 1696 // The pow or exp intrinsic returned a NaN, which requires a call |
| 1697 // to the runtime. Recompile with the runtime call. | |
| 1698 uncommon_trap(Deoptimization::Reason_intrinsic, | |
| 1699 Deoptimization::Action_make_not_entrant); | |
| 1700 } | |
|
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|
1701 return result; |
| 6205 | 1702 } else { |
| 1703 // If this inlining ever returned NaN in the past, we compile a call | |
| 1704 // to the runtime to properly handle corner cases | |
| 1705 | |
| 1706 IfNode* iff = create_and_xform_if(control(), bolisnum, PROB_STATIC_FREQUENT, COUNT_UNKNOWN); | |
|
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|
1707 Node* if_slow = _gvn.transform(new (C) IfFalseNode(iff)); |
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1708 Node* if_fast = _gvn.transform(new (C) IfTrueNode(iff)); |
| 6205 | 1709 |
| 1710 if (!if_slow->is_top()) { | |
|
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|
1711 RegionNode* result_region = new (C) RegionNode(3); |
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1712 PhiNode* result_val = new (C) PhiNode(result_region, Type::DOUBLE); |
| 6205 | 1713 |
| 1714 result_region->init_req(1, if_fast); | |
| 1715 result_val->init_req(1, result); | |
| 1716 | |
| 1717 set_control(if_slow); | |
| 1718 | |
| 1719 const TypePtr* no_memory_effects = NULL; | |
| 1720 Node* rt = make_runtime_call(RC_LEAF, call_type, funcAddr, funcName, | |
| 1721 no_memory_effects, | |
| 1722 x, top(), y, y ? top() : NULL); | |
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|
1723 Node* value = _gvn.transform(new (C) ProjNode(rt, TypeFunc::Parms+0)); |
| 6205 | 1724 #ifdef ASSERT |
|
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1725 Node* value_top = _gvn.transform(new (C) ProjNode(rt, TypeFunc::Parms+1)); |
| 6205 | 1726 assert(value_top == top(), "second value must be top"); |
| 1727 #endif | |
| 1728 | |
| 1729 result_region->init_req(2, control()); | |
| 1730 result_val->init_req(2, value); | |
|
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|
1731 set_control(_gvn.transform(result_region)); |
|
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|
1732 return _gvn.transform(result_val); |
| 6205 | 1733 } else { |
|
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|
1734 return result; |
| 6205 | 1735 } |
| 1736 } | |
| 1737 } | |
| 1738 | |
| 0 | 1739 //------------------------------inline_exp------------------------------------- |
| 1740 // Inline exp instructions, if possible. The Intel hardware only misses | |
| 1741 // really odd corner cases (+/- Infinity). Just uncommon-trap them. | |
|
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|
1742 bool LibraryCallKit::inline_exp() { |
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|
1743 Node* arg = round_double_node(argument(0)); |
|
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|
1744 Node* n = _gvn.transform(new (C) ExpDNode(C, control(), arg)); |
|
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|
1745 |
|
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|
1746 n = finish_pow_exp(n, arg, NULL, OptoRuntime::Math_D_D_Type(), CAST_FROM_FN_PTR(address, SharedRuntime::dexp), "EXP"); |
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|
1747 set_result(n); |
| 0 | 1748 |
| 1749 C->set_has_split_ifs(true); // Has chance for split-if optimization | |
| 1750 return true; | |
| 1751 } | |
| 1752 | |
| 1753 //------------------------------inline_pow------------------------------------- | |
| 1754 // Inline power instructions, if possible. | |
|
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|
1755 bool LibraryCallKit::inline_pow() { |
| 0 | 1756 // Pseudocode for pow |
|
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|
1757 // if (y == 2) { |
|
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|
1758 // return x * x; |
|
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|
1759 // } else { |
|
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|
1760 // if (x <= 0.0) { |
|
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|
1761 // long longy = (long)y; |
|
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|
1762 // if ((double)longy == y) { // if y is long |
|
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|
1763 // if (y + 1 == y) longy = 0; // huge number: even |
|
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1764 // result = ((1&longy) == 0)?-DPow(abs(x), y):DPow(abs(x), y); |
|
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|
1765 // } else { |
|
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|
1766 // result = NaN; |
|
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|
1767 // } |
| 0 | 1768 // } else { |
|
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|
1769 // result = DPow(x,y); |
| 0 | 1770 // } |
|
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|
1771 // if (result != result)? { |
|
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1772 // result = uncommon_trap() or runtime_call(); |
|
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|
1773 // } |
|
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|
1774 // return result; |
| 0 | 1775 // } |
| 1776 | |
|
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|
1777 Node* x = round_double_node(argument(0)); |
|
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|
1778 Node* y = round_double_node(argument(2)); |
| 0 | 1779 |
| 6205 | 1780 Node* result = NULL; |
| 1781 | |
|
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|
1782 Node* const_two_node = makecon(TypeD::make(2.0)); |
|
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|
1783 Node* cmp_node = _gvn.transform(new (C) CmpDNode(y, const_two_node)); |
|
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|
1784 Node* bool_node = _gvn.transform(new (C) BoolNode(cmp_node, BoolTest::eq)); |
|
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|
1785 IfNode* if_node = create_and_xform_if(control(), bool_node, PROB_STATIC_INFREQUENT, COUNT_UNKNOWN); |
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|
1786 Node* if_true = _gvn.transform(new (C) IfTrueNode(if_node)); |
|
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|
1787 Node* if_false = _gvn.transform(new (C) IfFalseNode(if_node)); |
|
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|
1788 |
|
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|
1789 RegionNode* region_node = new (C) RegionNode(3); |
|
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|
1790 region_node->init_req(1, if_true); |
|
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|
1791 |
|
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|
1792 Node* phi_node = new (C) PhiNode(region_node, Type::DOUBLE); |
|
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|
1793 // special case for x^y where y == 2, we can convert it to x * x |
|
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|
1794 phi_node->init_req(1, _gvn.transform(new (C) MulDNode(x, x))); |
|
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|
1795 |
|
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|
1796 // set control to if_false since we will now process the false branch |
|
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|
1797 set_control(if_false); |
|
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|
1798 |
| 6205 | 1799 if (!too_many_traps(Deoptimization::Reason_intrinsic)) { |
| 1800 // Short form: skip the fancy tests and just check for NaN result. | |
|
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|
1801 result = _gvn.transform(new (C) PowDNode(C, control(), x, y)); |
| 0 | 1802 } else { |
| 6205 | 1803 // If this inlining ever returned NaN in the past, include all |
| 1804 // checks + call to the runtime. | |
| 0 | 1805 |
| 1806 // Set the merge point for If node with condition of (x <= 0.0) | |
| 1807 // There are four possible paths to region node and phi node | |
|
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|
1808 RegionNode *r = new (C) RegionNode(4); |
|
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|
1809 Node *phi = new (C) PhiNode(r, Type::DOUBLE); |
| 0 | 1810 |
| 1811 // Build the first if node: if (x <= 0.0) | |
| 1812 // Node for 0 constant | |
| 1813 Node *zeronode = makecon(TypeD::ZERO); | |
| 1814 // Check x:0 | |
|
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|
1815 Node *cmp = _gvn.transform(new (C) CmpDNode(x, zeronode)); |
| 0 | 1816 // Check: If (x<=0) then go complex path |
|
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|
1817 Node *bol1 = _gvn.transform(new (C) BoolNode( cmp, BoolTest::le )); |
| 0 | 1818 // Branch either way |
| 1819 IfNode *if1 = create_and_xform_if(control(),bol1, PROB_STATIC_INFREQUENT, COUNT_UNKNOWN); | |
| 1820 // Fast path taken; set region slot 3 | |
|
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|
1821 Node *fast_taken = _gvn.transform(new (C) IfFalseNode(if1)); |
| 0 | 1822 r->init_req(3,fast_taken); // Capture fast-control |
| 1823 | |
| 1824 // Fast path not-taken, i.e. slow path | |
|
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|
1825 Node *complex_path = _gvn.transform(new (C) IfTrueNode(if1)); |
| 0 | 1826 |
| 1827 // Set fast path result | |
|
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|
1828 Node *fast_result = _gvn.transform(new (C) PowDNode(C, control(), x, y)); |
| 0 | 1829 phi->init_req(3, fast_result); |
| 1830 | |
| 1831 // Complex path | |
| 6205 | 1832 // Build the second if node (if y is long) |
| 1833 // Node for (long)y | |
|
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|
1834 Node *longy = _gvn.transform(new (C) ConvD2LNode(y)); |
| 6205 | 1835 // Node for (double)((long) y) |
|
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|
1836 Node *doublelongy= _gvn.transform(new (C) ConvL2DNode(longy)); |
| 6205 | 1837 // Check (double)((long) y) : y |
|
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|
1838 Node *cmplongy= _gvn.transform(new (C) CmpDNode(doublelongy, y)); |
| 6205 | 1839 // Check if (y isn't long) then go to slow path |
| 1840 | |
|
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1841 Node *bol2 = _gvn.transform(new (C) BoolNode( cmplongy, BoolTest::ne )); |
| 605 | 1842 // Branch either way |
| 0 | 1843 IfNode *if2 = create_and_xform_if(complex_path,bol2, PROB_STATIC_INFREQUENT, COUNT_UNKNOWN); |
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1844 Node* ylong_path = _gvn.transform(new (C) IfFalseNode(if2)); |
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1845 |
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1846 Node *slow_path = _gvn.transform(new (C) IfTrueNode(if2)); |
| 6205 | 1847 |
| 1848 // Calculate DPow(abs(x), y)*(1 & (long)y) | |
| 0 | 1849 // Node for constant 1 |
| 6205 | 1850 Node *conone = longcon(1); |
| 1851 // 1& (long)y | |
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1852 Node *signnode= _gvn.transform(new (C) AndLNode(conone, longy)); |
| 6205 | 1853 |
| 1854 // A huge number is always even. Detect a huge number by checking | |
| 1855 // if y + 1 == y and set integer to be tested for parity to 0. | |
| 1856 // Required for corner case: | |
| 1857 // (long)9.223372036854776E18 = max_jlong | |
| 1858 // (double)(long)9.223372036854776E18 = 9.223372036854776E18 | |
| 1859 // max_jlong is odd but 9.223372036854776E18 is even | |
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1860 Node* yplus1 = _gvn.transform(new (C) AddDNode(y, makecon(TypeD::make(1)))); |
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1861 Node *cmpyplus1= _gvn.transform(new (C) CmpDNode(yplus1, y)); |
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1862 Node *bolyplus1 = _gvn.transform(new (C) BoolNode( cmpyplus1, BoolTest::eq )); |
| 6205 | 1863 Node* correctedsign = NULL; |
| 1864 if (ConditionalMoveLimit != 0) { | |
| 1865 correctedsign = _gvn.transform( CMoveNode::make(C, NULL, bolyplus1, signnode, longcon(0), TypeLong::LONG)); | |
| 1866 } else { | |
| 1867 IfNode *ifyplus1 = create_and_xform_if(ylong_path,bolyplus1, PROB_FAIR, COUNT_UNKNOWN); | |
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1868 RegionNode *r = new (C) RegionNode(3); |
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1869 Node *phi = new (C) PhiNode(r, TypeLong::LONG); |
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1870 r->init_req(1, _gvn.transform(new (C) IfFalseNode(ifyplus1))); |
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1871 r->init_req(2, _gvn.transform(new (C) IfTrueNode(ifyplus1))); |
| 6205 | 1872 phi->init_req(1, signnode); |
| 1873 phi->init_req(2, longcon(0)); | |
| 1874 correctedsign = _gvn.transform(phi); | |
| 1875 ylong_path = _gvn.transform(r); | |
| 1876 record_for_igvn(r); | |
| 1877 } | |
| 1878 | |
| 0 | 1879 // zero node |
| 6205 | 1880 Node *conzero = longcon(0); |
| 1881 // Check (1&(long)y)==0? | |
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1882 Node *cmpeq1 = _gvn.transform(new (C) CmpLNode(correctedsign, conzero)); |
| 6205 | 1883 // Check if (1&(long)y)!=0?, if so the result is negative |
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1884 Node *bol3 = _gvn.transform(new (C) BoolNode( cmpeq1, BoolTest::ne )); |
| 0 | 1885 // abs(x) |
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1886 Node *absx=_gvn.transform(new (C) AbsDNode(x)); |
| 0 | 1887 // abs(x)^y |
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1888 Node *absxpowy = _gvn.transform(new (C) PowDNode(C, control(), absx, y)); |
| 0 | 1889 // -abs(x)^y |
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1890 Node *negabsxpowy = _gvn.transform(new (C) NegDNode (absxpowy)); |
| 6205 | 1891 // (1&(long)y)==1?-DPow(abs(x), y):DPow(abs(x), y) |
| 1892 Node *signresult = NULL; | |
| 1893 if (ConditionalMoveLimit != 0) { | |
| 1894 signresult = _gvn.transform( CMoveNode::make(C, NULL, bol3, absxpowy, negabsxpowy, Type::DOUBLE)); | |
| 1895 } else { | |
| 1896 IfNode *ifyeven = create_and_xform_if(ylong_path,bol3, PROB_FAIR, COUNT_UNKNOWN); | |
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1897 RegionNode *r = new (C) RegionNode(3); |
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1898 Node *phi = new (C) PhiNode(r, Type::DOUBLE); |
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1899 r->init_req(1, _gvn.transform(new (C) IfFalseNode(ifyeven))); |
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1900 r->init_req(2, _gvn.transform(new (C) IfTrueNode(ifyeven))); |
| 6205 | 1901 phi->init_req(1, absxpowy); |
| 1902 phi->init_req(2, negabsxpowy); | |
| 1903 signresult = _gvn.transform(phi); | |
| 1904 ylong_path = _gvn.transform(r); | |
| 1905 record_for_igvn(r); | |
| 1906 } | |
| 0 | 1907 // Set complex path fast result |
| 6205 | 1908 r->init_req(2, ylong_path); |
| 0 | 1909 phi->init_req(2, signresult); |
| 1910 | |
| 1911 static const jlong nan_bits = CONST64(0x7ff8000000000000); | |
| 1912 Node *slow_result = makecon(TypeD::make(*(double*)&nan_bits)); // return NaN | |
| 1913 r->init_req(1,slow_path); | |
| 1914 phi->init_req(1,slow_result); | |
| 1915 | |
| 1916 // Post merge | |
| 1917 set_control(_gvn.transform(r)); | |
| 1918 record_for_igvn(r); | |
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1919 result = _gvn.transform(phi); |
| 0 | 1920 } |
| 1921 | |
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1922 result = finish_pow_exp(result, x, y, OptoRuntime::Math_DD_D_Type(), CAST_FROM_FN_PTR(address, SharedRuntime::dpow), "POW"); |
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1923 |
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1924 // control from finish_pow_exp is now input to the region node |
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1925 region_node->set_req(2, control()); |
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1926 // the result from finish_pow_exp is now input to the phi node |
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1927 phi_node->init_req(2, result); |
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1928 set_control(_gvn.transform(region_node)); |
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1929 record_for_igvn(region_node); |
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1930 set_result(_gvn.transform(phi_node)); |
| 0 | 1931 |
| 1932 C->set_has_split_ifs(true); // Has chance for split-if optimization | |
| 1933 return true; | |
| 1934 } | |
| 1935 | |
| 1936 //------------------------------runtime_math----------------------------- | |
| 1937 bool LibraryCallKit::runtime_math(const TypeFunc* call_type, address funcAddr, const char* funcName) { | |
| 1938 assert(call_type == OptoRuntime::Math_DD_D_Type() || call_type == OptoRuntime::Math_D_D_Type(), | |
| 1939 "must be (DD)D or (D)D type"); | |
| 1940 | |
| 1941 // Inputs | |
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1942 Node* a = round_double_node(argument(0)); |
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1943 Node* b = (call_type == OptoRuntime::Math_DD_D_Type()) ? round_double_node(argument(2)) : NULL; |
| 0 | 1944 |
| 1945 const TypePtr* no_memory_effects = NULL; | |
| 1946 Node* trig = make_runtime_call(RC_LEAF, call_type, funcAddr, funcName, | |
| 1947 no_memory_effects, | |
| 1948 a, top(), b, b ? top() : NULL); | |
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1949 Node* value = _gvn.transform(new (C) ProjNode(trig, TypeFunc::Parms+0)); |
| 0 | 1950 #ifdef ASSERT |
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1951 Node* value_top = _gvn.transform(new (C) ProjNode(trig, TypeFunc::Parms+1)); |
| 0 | 1952 assert(value_top == top(), "second value must be top"); |
| 1953 #endif | |
| 1954 | |
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1955 set_result(value); |
| 0 | 1956 return true; |
| 1957 } | |
| 1958 | |
| 1959 //------------------------------inline_math_native----------------------------- | |
| 1960 bool LibraryCallKit::inline_math_native(vmIntrinsics::ID id) { | |
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1961 #define FN_PTR(f) CAST_FROM_FN_PTR(address, f) |
| 0 | 1962 switch (id) { |
| 1963 // These intrinsics are not properly supported on all hardware | |
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1964 case vmIntrinsics::_dcos: return Matcher::has_match_rule(Op_CosD) ? inline_trig(id) : |
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1965 runtime_math(OptoRuntime::Math_D_D_Type(), FN_PTR(SharedRuntime::dcos), "COS"); |
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1966 case vmIntrinsics::_dsin: return Matcher::has_match_rule(Op_SinD) ? inline_trig(id) : |
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1967 runtime_math(OptoRuntime::Math_D_D_Type(), FN_PTR(SharedRuntime::dsin), "SIN"); |
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1968 case vmIntrinsics::_dtan: return Matcher::has_match_rule(Op_TanD) ? inline_trig(id) : |
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1969 runtime_math(OptoRuntime::Math_D_D_Type(), FN_PTR(SharedRuntime::dtan), "TAN"); |
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1970 |
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1971 case vmIntrinsics::_dlog: return Matcher::has_match_rule(Op_LogD) ? inline_math(id) : |
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1972 runtime_math(OptoRuntime::Math_D_D_Type(), FN_PTR(SharedRuntime::dlog), "LOG"); |
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1973 case vmIntrinsics::_dlog10: return Matcher::has_match_rule(Op_Log10D) ? inline_math(id) : |
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1974 runtime_math(OptoRuntime::Math_D_D_Type(), FN_PTR(SharedRuntime::dlog10), "LOG10"); |
| 0 | 1975 |
| 1976 // These intrinsics are supported on all hardware | |
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1977 case vmIntrinsics::_dsqrt: return Matcher::match_rule_supported(Op_SqrtD) ? inline_math(id) : false; |
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1978 case vmIntrinsics::_dabs: return Matcher::has_match_rule(Op_AbsD) ? inline_math(id) : false; |
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1979 |
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1980 case vmIntrinsics::_dexp: return Matcher::has_match_rule(Op_ExpD) ? inline_exp() : |
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1981 runtime_math(OptoRuntime::Math_D_D_Type(), FN_PTR(SharedRuntime::dexp), "EXP"); |
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1982 case vmIntrinsics::_dpow: return Matcher::has_match_rule(Op_PowD) ? inline_pow() : |
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1983 runtime_math(OptoRuntime::Math_DD_D_Type(), FN_PTR(SharedRuntime::dpow), "POW"); |
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1984 #undef FN_PTR |
| 0 | 1985 |
| 1986 // These intrinsics are not yet correctly implemented | |
| 1987 case vmIntrinsics::_datan2: | |
| 1988 return false; | |
| 1989 | |
| 1990 default: | |
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1991 fatal_unexpected_iid(id); |
| 0 | 1992 return false; |
| 1993 } | |
| 1994 } | |
| 1995 | |
| 1996 static bool is_simple_name(Node* n) { | |
| 1997 return (n->req() == 1 // constant | |
| 1998 || (n->is_Type() && n->as_Type()->type()->singleton()) | |
| 1999 || n->is_Proj() // parameter or return value | |
| 2000 || n->is_Phi() // local of some sort | |
| 2001 ); | |
| 2002 } | |
| 2003 | |
| 2004 //----------------------------inline_min_max----------------------------------- | |
| 2005 bool LibraryCallKit::inline_min_max(vmIntrinsics::ID id) { | |
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2006 set_result(generate_min_max(id, argument(0), argument(1))); |
| 0 | 2007 return true; |
| 2008 } | |
| 2009 | |
|
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2010 void LibraryCallKit::inline_math_mathExact(Node* math, Node *test) { |
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2011 Node* bol = _gvn.transform( new (C) BoolNode(test, BoolTest::overflow) ); |
| 12323 | 2012 IfNode* check = create_and_map_if(control(), bol, PROB_UNLIKELY_MAG(3), COUNT_UNKNOWN); |
| 2013 Node* fast_path = _gvn.transform( new (C) IfFalseNode(check)); | |
| 2014 Node* slow_path = _gvn.transform( new (C) IfTrueNode(check) ); | |
| 2015 | |
| 2016 { | |
| 2017 PreserveJVMState pjvms(this); | |
| 2018 PreserveReexecuteState preexecs(this); | |
| 2019 jvms()->set_should_reexecute(true); | |
| 2020 | |
| 2021 set_control(slow_path); | |
| 2022 set_i_o(i_o()); | |
| 2023 | |
| 2024 uncommon_trap(Deoptimization::Reason_intrinsic, | |
| 2025 Deoptimization::Action_none); | |
| 2026 } | |
| 2027 | |
| 2028 set_control(fast_path); | |
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2029 set_result(math); |
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2030 } |
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2031 |
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2032 template <typename OverflowOp> |
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2033 bool LibraryCallKit::inline_math_overflow(Node* arg1, Node* arg2) { |
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2034 typedef typename OverflowOp::MathOp MathOp; |
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2035 |
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2036 MathOp* mathOp = new(C) MathOp(arg1, arg2); |
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2037 Node* operation = _gvn.transform( mathOp ); |
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2038 Node* ofcheck = _gvn.transform( new(C) OverflowOp(arg1, arg2) ); |
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2039 inline_math_mathExact(operation, ofcheck); |
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2040 return true; |
|
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2041 } |
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2042 |
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2043 bool LibraryCallKit::inline_math_addExactI(bool is_increment) { |
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2044 return inline_math_overflow<OverflowAddINode>(argument(0), is_increment ? intcon(1) : argument(1)); |
|
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2045 } |
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2046 |
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2047 bool LibraryCallKit::inline_math_addExactL(bool is_increment) { |
|
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2048 return inline_math_overflow<OverflowAddLNode>(argument(0), is_increment ? longcon(1) : argument(2)); |
| 12323 | 2049 } |
| 2050 | |
|
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2051 bool LibraryCallKit::inline_math_subtractExactI(bool is_decrement) { |
|
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2052 return inline_math_overflow<OverflowSubINode>(argument(0), is_decrement ? intcon(1) : argument(1)); |
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2053 } |
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2054 |
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2055 bool LibraryCallKit::inline_math_subtractExactL(bool is_decrement) { |
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2056 return inline_math_overflow<OverflowSubLNode>(argument(0), is_decrement ? longcon(1) : argument(2)); |
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2057 } |
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2058 |
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2059 bool LibraryCallKit::inline_math_negateExactI() { |
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2060 return inline_math_overflow<OverflowSubINode>(intcon(0), argument(0)); |
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2061 } |
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2062 |
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2063 bool LibraryCallKit::inline_math_negateExactL() { |
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2064 return inline_math_overflow<OverflowSubLNode>(longcon(0), argument(0)); |
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2065 } |
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2066 |
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2067 bool LibraryCallKit::inline_math_multiplyExactI() { |
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2068 return inline_math_overflow<OverflowMulINode>(argument(0), argument(1)); |
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2069 } |
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2070 |
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2071 bool LibraryCallKit::inline_math_multiplyExactL() { |
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2072 return inline_math_overflow<OverflowMulLNode>(argument(0), argument(2)); |
| 12323 | 2073 } |
| 2074 | |
| 0 | 2075 Node* |
| 2076 LibraryCallKit::generate_min_max(vmIntrinsics::ID id, Node* x0, Node* y0) { | |
| 2077 // These are the candidate return value: | |
| 2078 Node* xvalue = x0; | |
| 2079 Node* yvalue = y0; | |
| 2080 | |
| 2081 if (xvalue == yvalue) { | |
| 2082 return xvalue; | |
| 2083 } | |
| 2084 | |
| 2085 bool want_max = (id == vmIntrinsics::_max); | |
| 2086 | |
| 2087 const TypeInt* txvalue = _gvn.type(xvalue)->isa_int(); | |
| 2088 const TypeInt* tyvalue = _gvn.type(yvalue)->isa_int(); | |
| 2089 if (txvalue == NULL || tyvalue == NULL) return top(); | |
| 2090 // This is not really necessary, but it is consistent with a | |
| 2091 // hypothetical MaxINode::Value method: | |
| 2092 int widen = MAX2(txvalue->_widen, tyvalue->_widen); | |
| 2093 | |
| 2094 // %%% This folding logic should (ideally) be in a different place. | |
| 2095 // Some should be inside IfNode, and there to be a more reliable | |
| 2096 // transformation of ?: style patterns into cmoves. We also want | |
| 2097 // more powerful optimizations around cmove and min/max. | |
| 2098 | |
| 2099 // Try to find a dominating comparison of these guys. | |
| 2100 // It can simplify the index computation for Arrays.copyOf | |
| 2101 // and similar uses of System.arraycopy. | |
| 2102 // First, compute the normalized version of CmpI(x, y). | |
| 2103 int cmp_op = Op_CmpI; | |
| 2104 Node* xkey = xvalue; | |
| 2105 Node* ykey = yvalue; | |
|
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2106 Node* ideal_cmpxy = _gvn.transform(new(C) CmpINode(xkey, ykey)); |
| 0 | 2107 if (ideal_cmpxy->is_Cmp()) { |
| 2108 // E.g., if we have CmpI(length - offset, count), | |
| 2109 // it might idealize to CmpI(length, count + offset) | |
| 2110 cmp_op = ideal_cmpxy->Opcode(); | |
| 2111 xkey = ideal_cmpxy->in(1); | |
| 2112 ykey = ideal_cmpxy->in(2); | |
| 2113 } | |
| 2114 | |
| 2115 // Start by locating any relevant comparisons. | |
| 2116 Node* start_from = (xkey->outcnt() < ykey->outcnt()) ? xkey : ykey; | |
| 2117 Node* cmpxy = NULL; | |
| 2118 Node* cmpyx = NULL; | |
| 2119 for (DUIterator_Fast kmax, k = start_from->fast_outs(kmax); k < kmax; k++) { | |
| 2120 Node* cmp = start_from->fast_out(k); | |
| 2121 if (cmp->outcnt() > 0 && // must have prior uses | |
| 2122 cmp->in(0) == NULL && // must be context-independent | |
| 2123 cmp->Opcode() == cmp_op) { // right kind of compare | |
| 2124 if (cmp->in(1) == xkey && cmp->in(2) == ykey) cmpxy = cmp; | |
| 2125 if (cmp->in(1) == ykey && cmp->in(2) == xkey) cmpyx = cmp; | |
| 2126 } | |
| 2127 } | |
| 2128 | |
| 2129 const int NCMPS = 2; | |
| 2130 Node* cmps[NCMPS] = { cmpxy, cmpyx }; | |
| 2131 int cmpn; | |
| 2132 for (cmpn = 0; cmpn < NCMPS; cmpn++) { | |
| 2133 if (cmps[cmpn] != NULL) break; // find a result | |
| 2134 } | |
| 2135 if (cmpn < NCMPS) { | |
| 2136 // Look for a dominating test that tells us the min and max. | |
| 2137 int depth = 0; // Limit search depth for speed | |
| 2138 Node* dom = control(); | |
| 2139 for (; dom != NULL; dom = IfNode::up_one_dom(dom, true)) { | |
| 2140 if (++depth >= 100) break; | |
| 2141 Node* ifproj = dom; | |
| 2142 if (!ifproj->is_Proj()) continue; | |
| 2143 Node* iff = ifproj->in(0); | |
| 2144 if (!iff->is_If()) continue; | |
| 2145 Node* bol = iff->in(1); | |
| 2146 if (!bol->is_Bool()) continue; | |
| 2147 Node* cmp = bol->in(1); | |
| 2148 if (cmp == NULL) continue; | |
| 2149 for (cmpn = 0; cmpn < NCMPS; cmpn++) | |
| 2150 if (cmps[cmpn] == cmp) break; | |
| 2151 if (cmpn == NCMPS) continue; | |
| 2152 BoolTest::mask btest = bol->as_Bool()->_test._test; | |
| 2153 if (ifproj->is_IfFalse()) btest = BoolTest(btest).negate(); | |
| 2154 if (cmp->in(1) == ykey) btest = BoolTest(btest).commute(); | |
| 2155 // At this point, we know that 'x btest y' is true. | |
| 2156 switch (btest) { | |
| 2157 case BoolTest::eq: | |
| 2158 // They are proven equal, so we can collapse the min/max. | |
| 2159 // Either value is the answer. Choose the simpler. | |
| 2160 if (is_simple_name(yvalue) && !is_simple_name(xvalue)) | |
| 2161 return yvalue; | |
| 2162 return xvalue; | |
| 2163 case BoolTest::lt: // x < y | |
| 2164 case BoolTest::le: // x <= y | |
| 2165 return (want_max ? yvalue : xvalue); | |
| 2166 case BoolTest::gt: // x > y | |
| 2167 case BoolTest::ge: // x >= y | |
| 2168 return (want_max ? xvalue : yvalue); | |
| 2169 } | |
| 2170 } | |
| 2171 } | |
| 2172 | |
| 2173 // We failed to find a dominating test. | |
| 2174 // Let's pick a test that might GVN with prior tests. | |
| 2175 Node* best_bol = NULL; | |
| 2176 BoolTest::mask best_btest = BoolTest::illegal; | |
| 2177 for (cmpn = 0; cmpn < NCMPS; cmpn++) { | |
| 2178 Node* cmp = cmps[cmpn]; | |
| 2179 if (cmp == NULL) continue; | |
| 2180 for (DUIterator_Fast jmax, j = cmp->fast_outs(jmax); j < jmax; j++) { | |
| 2181 Node* bol = cmp->fast_out(j); | |
| 2182 if (!bol->is_Bool()) continue; | |
| 2183 BoolTest::mask btest = bol->as_Bool()->_test._test; | |
| 2184 if (btest == BoolTest::eq || btest == BoolTest::ne) continue; | |
| 2185 if (cmp->in(1) == ykey) btest = BoolTest(btest).commute(); | |
| 2186 if (bol->outcnt() > (best_bol == NULL ? 0 : best_bol->outcnt())) { | |
| 2187 best_bol = bol->as_Bool(); | |
| 2188 best_btest = btest; | |
| 2189 } | |
| 2190 } | |
| 2191 } | |
| 2192 | |
| 2193 Node* answer_if_true = NULL; | |
| 2194 Node* answer_if_false = NULL; | |
| 2195 switch (best_btest) { | |
| 2196 default: | |
| 2197 if (cmpxy == NULL) | |
| 2198 cmpxy = ideal_cmpxy; | |
|
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2199 best_bol = _gvn.transform(new(C) BoolNode(cmpxy, BoolTest::lt)); |
| 0 | 2200 // and fall through: |
| 2201 case BoolTest::lt: // x < y | |
| 2202 case BoolTest::le: // x <= y | |
| 2203 answer_if_true = (want_max ? yvalue : xvalue); | |
| 2204 answer_if_false = (want_max ? xvalue : yvalue); | |
| 2205 break; | |
| 2206 case BoolTest::gt: // x > y | |
| 2207 case BoolTest::ge: // x >= y | |
| 2208 answer_if_true = (want_max ? xvalue : yvalue); | |
| 2209 answer_if_false = (want_max ? yvalue : xvalue); | |
| 2210 break; | |
| 2211 } | |
| 2212 | |
| 2213 jint hi, lo; | |
| 2214 if (want_max) { | |
| 2215 // We can sharpen the minimum. | |
| 2216 hi = MAX2(txvalue->_hi, tyvalue->_hi); | |
| 2217 lo = MAX2(txvalue->_lo, tyvalue->_lo); | |
| 2218 } else { | |
| 2219 // We can sharpen the maximum. | |
| 2220 hi = MIN2(txvalue->_hi, tyvalue->_hi); | |
| 2221 lo = MIN2(txvalue->_lo, tyvalue->_lo); | |
| 2222 } | |
| 2223 | |
| 2224 // Use a flow-free graph structure, to avoid creating excess control edges | |
| 2225 // which could hinder other optimizations. | |
| 2226 // Since Math.min/max is often used with arraycopy, we want | |
| 2227 // tightly_coupled_allocation to be able to see beyond min/max expressions. | |
| 2228 Node* cmov = CMoveNode::make(C, NULL, best_bol, | |
| 2229 answer_if_false, answer_if_true, | |
| 2230 TypeInt::make(lo, hi, widen)); | |
| 2231 | |
| 2232 return _gvn.transform(cmov); | |
| 2233 | |
| 2234 /* | |
| 2235 // This is not as desirable as it may seem, since Min and Max | |
| 2236 // nodes do not have a full set of optimizations. | |
| 2237 // And they would interfere, anyway, with 'if' optimizations | |
| 2238 // and with CMoveI canonical forms. | |
| 2239 switch (id) { | |
| 2240 case vmIntrinsics::_min: | |
| 2241 result_val = _gvn.transform(new (C, 3) MinINode(x,y)); break; | |
| 2242 case vmIntrinsics::_max: | |
| 2243 result_val = _gvn.transform(new (C, 3) MaxINode(x,y)); break; | |
| 2244 default: | |
| 2245 ShouldNotReachHere(); | |
| 2246 } | |
| 2247 */ | |
| 2248 } | |
| 2249 | |
| 2250 inline int | |
| 2251 LibraryCallKit::classify_unsafe_addr(Node* &base, Node* &offset) { | |
| 2252 const TypePtr* base_type = TypePtr::NULL_PTR; | |
| 2253 if (base != NULL) base_type = _gvn.type(base)->isa_ptr(); | |
| 2254 if (base_type == NULL) { | |
| 2255 // Unknown type. | |
| 2256 return Type::AnyPtr; | |
| 2257 } else if (base_type == TypePtr::NULL_PTR) { | |
| 2258 // Since this is a NULL+long form, we have to switch to a rawptr. | |
|
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2259 base = _gvn.transform(new (C) CastX2PNode(offset)); |
| 0 | 2260 offset = MakeConX(0); |
| 2261 return Type::RawPtr; | |
| 2262 } else if (base_type->base() == Type::RawPtr) { | |
| 2263 return Type::RawPtr; | |
| 2264 } else if (base_type->isa_oopptr()) { | |
| 2265 // Base is never null => always a heap address. | |
| 2266 if (base_type->ptr() == TypePtr::NotNull) { | |
| 2267 return Type::OopPtr; | |
| 2268 } | |
| 2269 // Offset is small => always a heap address. | |
| 2270 const TypeX* offset_type = _gvn.type(offset)->isa_intptr_t(); | |
| 2271 if (offset_type != NULL && | |
| 2272 base_type->offset() == 0 && // (should always be?) | |
| 2273 offset_type->_lo >= 0 && | |
| 2274 !MacroAssembler::needs_explicit_null_check(offset_type->_hi)) { | |
| 2275 return Type::OopPtr; | |
| 2276 } | |
| 2277 // Otherwise, it might either be oop+off or NULL+addr. | |
| 2278 return Type::AnyPtr; | |
| 2279 } else { | |
| 2280 // No information: | |
| 2281 return Type::AnyPtr; | |
| 2282 } | |
| 2283 } | |
| 2284 | |
| 2285 inline Node* LibraryCallKit::make_unsafe_address(Node* base, Node* offset) { | |
| 2286 int kind = classify_unsafe_addr(base, offset); | |
| 2287 if (kind == Type::RawPtr) { | |
| 2288 return basic_plus_adr(top(), base, offset); | |
| 2289 } else { | |
| 2290 return basic_plus_adr(base, offset); | |
| 2291 } | |
| 2292 } | |
| 2293 | |
|
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2294 //--------------------------inline_number_methods----------------------------- |
|
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2295 // inline int Integer.numberOfLeadingZeros(int) |
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2296 // inline int Long.numberOfLeadingZeros(long) |
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2297 // |
|
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2298 // inline int Integer.numberOfTrailingZeros(int) |
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2299 // inline int Long.numberOfTrailingZeros(long) |
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2300 // |
|
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2301 // inline int Integer.bitCount(int) |
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2302 // inline int Long.bitCount(long) |
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2303 // |
|
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2304 // inline char Character.reverseBytes(char) |
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2305 // inline short Short.reverseBytes(short) |
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2306 // inline int Integer.reverseBytes(int) |
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2307 // inline long Long.reverseBytes(long) |
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2308 bool LibraryCallKit::inline_number_methods(vmIntrinsics::ID id) { |
|
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2309 Node* arg = argument(0); |
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2310 Node* n; |
|
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2311 switch (id) { |
|
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2312 case vmIntrinsics::_numberOfLeadingZeros_i: n = new (C) CountLeadingZerosINode( arg); break; |
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2313 case vmIntrinsics::_numberOfLeadingZeros_l: n = new (C) CountLeadingZerosLNode( arg); break; |
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2314 case vmIntrinsics::_numberOfTrailingZeros_i: n = new (C) CountTrailingZerosINode(arg); break; |
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2315 case vmIntrinsics::_numberOfTrailingZeros_l: n = new (C) CountTrailingZerosLNode(arg); break; |
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2316 case vmIntrinsics::_bitCount_i: n = new (C) PopCountINode( arg); break; |
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2317 case vmIntrinsics::_bitCount_l: n = new (C) PopCountLNode( arg); break; |
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2318 case vmIntrinsics::_reverseBytes_c: n = new (C) ReverseBytesUSNode(0, arg); break; |
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2319 case vmIntrinsics::_reverseBytes_s: n = new (C) ReverseBytesSNode( 0, arg); break; |
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2320 case vmIntrinsics::_reverseBytes_i: n = new (C) ReverseBytesINode( 0, arg); break; |
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2321 case vmIntrinsics::_reverseBytes_l: n = new (C) ReverseBytesLNode( 0, arg); break; |
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|
2322 default: fatal_unexpected_iid(id); break; |
|
775
93c14e5562c4
6823354: Add intrinsics for {Integer,Long}.{numberOfLeadingZeros,numberOfTrailingZeros}()
twisti
parents:
730
diff
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|
2323 } |
|
7194
beebba0acc11
7172640: C2: instrinsic implementations in LibraryCallKit should use argument() instead of pop()
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6894
diff
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|
2324 set_result(_gvn.transform(n)); |
| 0 | 2325 return true; |
| 2326 } | |
| 2327 | |
| 2328 //----------------------------inline_unsafe_access---------------------------- | |
| 2329 | |
| 2330 const static BasicType T_ADDRESS_HOLDER = T_LONG; | |
| 2331 | |
|
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09aad8452938
7190310: Inlining WeakReference.get(), and hoisting $referent may lead to non-terminating loops
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|
2332 // Helper that guards and inserts a pre-barrier. |
|
09aad8452938
7190310: Inlining WeakReference.get(), and hoisting $referent may lead to non-terminating loops
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|
2333 void LibraryCallKit::insert_pre_barrier(Node* base_oop, Node* offset, |
|
7194
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7172640: C2: instrinsic implementations in LibraryCallKit should use argument() instead of pop()
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|
2334 Node* pre_val, bool need_mem_bar) { |
|
3249
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2385
diff
changeset
|
2335 // We could be accessing the referent field of a reference object. If so, when G1 |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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parents:
2385
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changeset
|
2336 // is enabled, we need to log the value in the referent field in an SATB buffer. |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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diff
changeset
|
2337 // This routine performs some compile time filters and generates suitable |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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parents:
2385
diff
changeset
|
2338 // runtime filters that guard the pre-barrier code. |
|
6615
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|
2339 // Also add memory barrier for non volatile load from the referent field |
|
09aad8452938
7190310: Inlining WeakReference.get(), and hoisting $referent may lead to non-terminating loops
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|
2340 // to prevent commoning of loads across safepoint. |
|
09aad8452938
7190310: Inlining WeakReference.get(), and hoisting $referent may lead to non-terminating loops
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|
2341 if (!UseG1GC && !need_mem_bar) |
|
09aad8452938
7190310: Inlining WeakReference.get(), and hoisting $referent may lead to non-terminating loops
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|
2342 return; |
|
3249
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7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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parents:
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|
2343 |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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parents:
2385
diff
changeset
|
2344 // Some compile time checks. |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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|
2345 |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2385
diff
changeset
|
2346 // If offset is a constant, is it java_lang_ref_Reference::_reference_offset? |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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parents:
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changeset
|
2347 const TypeX* otype = offset->find_intptr_t_type(); |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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|
2348 if (otype != NULL && otype->is_con() && |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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2385
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|
2349 otype->get_con() != java_lang_ref_Reference::referent_offset) { |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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|
2350 // Constant offset but not the reference_offset so just return |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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|
2351 return; |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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parents:
2385
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|
2352 } |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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|
2353 |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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2385
diff
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|
2354 // We only need to generate the runtime guards for instances. |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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|
2355 const TypeOopPtr* btype = base_oop->bottom_type()->isa_oopptr(); |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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|
2356 if (btype != NULL) { |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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|
2357 if (btype->isa_aryptr()) { |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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|
2358 // Array type so nothing to do |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2385
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changeset
|
2359 return; |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2385
diff
changeset
|
2360 } |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2385
diff
changeset
|
2361 |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2385
diff
changeset
|
2362 const TypeInstPtr* itype = btype->isa_instptr(); |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2385
diff
changeset
|
2363 if (itype != NULL) { |
|
6615
09aad8452938
7190310: Inlining WeakReference.get(), and hoisting $referent may lead to non-terminating loops
kvn
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|
2364 // Can the klass of base_oop be statically determined to be |
|
09aad8452938
7190310: Inlining WeakReference.get(), and hoisting $referent may lead to non-terminating loops
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|
2365 // _not_ a sub-class of Reference and _not_ Object? |
|
3249
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2385
diff
changeset
|
2366 ciKlass* klass = itype->klass(); |
|
6615
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7190310: Inlining WeakReference.get(), and hoisting $referent may lead to non-terminating loops
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|
2367 if ( klass->is_loaded() && |
|
09aad8452938
7190310: Inlining WeakReference.get(), and hoisting $referent may lead to non-terminating loops
kvn
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changeset
|
2368 !klass->is_subtype_of(env()->Reference_klass()) && |
|
09aad8452938
7190310: Inlining WeakReference.get(), and hoisting $referent may lead to non-terminating loops
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changeset
|
2369 !env()->Object_klass()->is_subtype_of(klass)) { |
|
3249
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2385
diff
changeset
|
2370 return; |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2385
diff
changeset
|
2371 } |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2385
diff
changeset
|
2372 } |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2385
diff
changeset
|
2373 } |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2385
diff
changeset
|
2374 |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2385
diff
changeset
|
2375 // The compile time filters did not reject base_oop/offset so |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2385
diff
changeset
|
2376 // we need to generate the following runtime filters |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2385
diff
changeset
|
2377 // |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2385
diff
changeset
|
2378 // if (offset == java_lang_ref_Reference::_reference_offset) { |
|
6615
09aad8452938
7190310: Inlining WeakReference.get(), and hoisting $referent may lead to non-terminating loops
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changeset
|
2379 // if (instance_of(base, java.lang.ref.Reference)) { |
|
09aad8452938
7190310: Inlining WeakReference.get(), and hoisting $referent may lead to non-terminating loops
kvn
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6266
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changeset
|
2380 // pre_barrier(_, pre_val, ...); |
|
3249
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2385
diff
changeset
|
2381 // } |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2385
diff
changeset
|
2382 // } |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2385
diff
changeset
|
2383 |
|
7194
beebba0acc11
7172640: C2: instrinsic implementations in LibraryCallKit should use argument() instead of pop()
twisti
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6894
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|
2384 float likely = PROB_LIKELY( 0.999); |
|
beebba0acc11
7172640: C2: instrinsic implementations in LibraryCallKit should use argument() instead of pop()
twisti
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6894
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|
2385 float unlikely = PROB_UNLIKELY(0.999); |
|
3249
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2385
diff
changeset
|
2386 |
| 3255 | 2387 IdealKit ideal(this); |
|
3249
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2385
diff
changeset
|
2388 #define __ ideal. |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2385
diff
changeset
|
2389 |
|
3254
59766fd005ff
7035117: G1: nsk/stress/jni/jnistress002 fails with assertion failure
johnc
parents:
3252
diff
changeset
|
2390 Node* referent_off = __ ConX(java_lang_ref_Reference::referent_offset); |
|
3249
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2385
diff
changeset
|
2391 |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2385
diff
changeset
|
2392 __ if_then(offset, BoolTest::eq, referent_off, unlikely); { |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2385
diff
changeset
|
2393 // Update graphKit memory and control from IdealKit. |
| 3255 | 2394 sync_kit(ideal); |
|
3249
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2385
diff
changeset
|
2395 |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2385
diff
changeset
|
2396 Node* ref_klass_con = makecon(TypeKlassPtr::make(env()->Reference_klass())); |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2385
diff
changeset
|
2397 Node* is_instof = gen_instanceof(base_oop, ref_klass_con); |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2385
diff
changeset
|
2398 |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2385
diff
changeset
|
2399 // Update IdealKit memory and control from graphKit. |
| 3255 | 2400 __ sync_kit(this); |
|
3249
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2385
diff
changeset
|
2401 |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2385
diff
changeset
|
2402 Node* one = __ ConI(1); |
|
6615
09aad8452938
7190310: Inlining WeakReference.get(), and hoisting $referent may lead to non-terminating loops
kvn
parents:
6266
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changeset
|
2403 // is_instof == 0 if base_oop == NULL |
|
3249
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2385
diff
changeset
|
2404 __ if_then(is_instof, BoolTest::eq, one, unlikely); { |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2385
diff
changeset
|
2405 |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2385
diff
changeset
|
2406 // Update graphKit from IdeakKit. |
| 3255 | 2407 sync_kit(ideal); |
|
3249
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2385
diff
changeset
|
2408 |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2385
diff
changeset
|
2409 // Use the pre-barrier to record the value in the referent field |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2385
diff
changeset
|
2410 pre_barrier(false /* do_load */, |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2385
diff
changeset
|
2411 __ ctrl(), |
|
3258
edd9b016deb6
7036021: G1: build failure on win64 and linux with hs21 in jdk6 build environment
johnc
parents:
3255
diff
changeset
|
2412 NULL /* obj */, NULL /* adr */, max_juint /* alias_idx */, NULL /* val */, NULL /* val_type */, |
|
3249
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2385
diff
changeset
|
2413 pre_val /* pre_val */, |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2385
diff
changeset
|
2414 T_OBJECT); |
|
6615
09aad8452938
7190310: Inlining WeakReference.get(), and hoisting $referent may lead to non-terminating loops
kvn
parents:
6266
diff
changeset
|
2415 if (need_mem_bar) { |
|
09aad8452938
7190310: Inlining WeakReference.get(), and hoisting $referent may lead to non-terminating loops
kvn
parents:
6266
diff
changeset
|
2416 // Add memory barrier to prevent commoning reads from this field |
|
09aad8452938
7190310: Inlining WeakReference.get(), and hoisting $referent may lead to non-terminating loops
kvn
parents:
6266
diff
changeset
|
2417 // across safepoint since GC can change its value. |
|
09aad8452938
7190310: Inlining WeakReference.get(), and hoisting $referent may lead to non-terminating loops
kvn
parents:
6266
diff
changeset
|
2418 insert_mem_bar(Op_MemBarCPUOrder); |
|
09aad8452938
7190310: Inlining WeakReference.get(), and hoisting $referent may lead to non-terminating loops
kvn
parents:
6266
diff
changeset
|
2419 } |
|
3249
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2385
diff
changeset
|
2420 // Update IdealKit from graphKit. |
| 3255 | 2421 __ sync_kit(this); |
|
3249
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2385
diff
changeset
|
2422 |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2385
diff
changeset
|
2423 } __ end_if(); // _ref_type != ref_none |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2385
diff
changeset
|
2424 } __ end_if(); // offset == referent_offset |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2385
diff
changeset
|
2425 |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2385
diff
changeset
|
2426 // Final sync IdealKit and GraphKit. |
| 3255 | 2427 final_sync(ideal); |
|
3249
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2385
diff
changeset
|
2428 #undef __ |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2385
diff
changeset
|
2429 } |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2385
diff
changeset
|
2430 |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2385
diff
changeset
|
2431 |
| 0 | 2432 // Interpret Unsafe.fieldOffset cookies correctly: |
| 2433 extern jlong Unsafe_field_offset_to_byte_offset(jlong field_offset); | |
| 2434 | |
|
6795
7eca5de9e0b6
7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
roland
parents:
6725
diff
changeset
|
2435 const TypeOopPtr* LibraryCallKit::sharpen_unsafe_type(Compile::AliasType* alias_type, const TypePtr *adr_type, bool is_native_ptr) { |
|
7eca5de9e0b6
7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
roland
parents:
6725
diff
changeset
|
2436 // Attempt to infer a sharper value type from the offset and base type. |
|
7eca5de9e0b6
7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
roland
parents:
6725
diff
changeset
|
2437 ciKlass* sharpened_klass = NULL; |
|
7eca5de9e0b6
7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
roland
parents:
6725
diff
changeset
|
2438 |
|
7eca5de9e0b6
7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
roland
parents:
6725
diff
changeset
|
2439 // See if it is an instance field, with an object type. |
|
7eca5de9e0b6
7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
roland
parents:
6725
diff
changeset
|
2440 if (alias_type->field() != NULL) { |
|
7eca5de9e0b6
7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
roland
parents:
6725
diff
changeset
|
2441 assert(!is_native_ptr, "native pointer op cannot use a java address"); |
|
7eca5de9e0b6
7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
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|
2442 if (alias_type->field()->type()->is_klass()) { |
|
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|
2443 sharpened_klass = alias_type->field()->type()->as_klass(); |
|
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7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
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|
2444 } |
|
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7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
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diff
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|
2445 } |
|
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7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
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|
2446 |
|
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|
2447 // See if it is a narrow oop array. |
|
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7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
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|
2448 if (adr_type->isa_aryptr()) { |
|
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7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
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|
2449 if (adr_type->offset() >= objArrayOopDesc::base_offset_in_bytes()) { |
|
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7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
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|
2450 const TypeOopPtr *elem_type = adr_type->is_aryptr()->elem()->isa_oopptr(); |
|
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7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
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|
2451 if (elem_type != NULL) { |
|
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7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
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|
2452 sharpened_klass = elem_type->klass(); |
|
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7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
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diff
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|
2453 } |
|
7eca5de9e0b6
7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
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parents:
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diff
changeset
|
2454 } |
|
7eca5de9e0b6
7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
roland
parents:
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diff
changeset
|
2455 } |
|
7eca5de9e0b6
7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
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|
2456 |
|
6847
65d07d9ee446
8000263: JSR 292: signature types may appear to be unloaded
twisti
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changeset
|
2457 // The sharpened class might be unloaded if there is no class loader |
|
65d07d9ee446
8000263: JSR 292: signature types may appear to be unloaded
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|
2458 // contraint in place. |
|
65d07d9ee446
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|
2459 if (sharpened_klass != NULL && sharpened_klass->is_loaded()) { |
|
6795
7eca5de9e0b6
7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
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|
2460 const TypeOopPtr* tjp = TypeOopPtr::make_from_klass(sharpened_klass); |
|
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|
2461 |
|
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|
2462 #ifndef PRODUCT |
| 12295 | 2463 if (C->print_intrinsics() || C->print_inlining()) { |
|
6847
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|
2464 tty->print(" from base type: "); adr_type->dump(); |
|
65d07d9ee446
8000263: JSR 292: signature types may appear to be unloaded
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|
2465 tty->print(" sharpened value: "); tjp->dump(); |
|
6795
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7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
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|
2466 } |
|
7eca5de9e0b6
7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
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diff
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|
2467 #endif |
|
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7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
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|
2468 // Sharpen the value type. |
|
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|
2469 return tjp; |
|
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7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
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|
2470 } |
|
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7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
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|
2471 return NULL; |
|
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7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
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|
2472 } |
|
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|
2473 |
| 0 | 2474 bool LibraryCallKit::inline_unsafe_access(bool is_native_ptr, bool is_store, BasicType type, bool is_volatile) { |
| 2475 if (callee()->is_static()) return false; // caller must have the capability! | |
| 2476 | |
| 2477 #ifndef PRODUCT | |
| 2478 { | |
| 2479 ResourceMark rm; | |
| 2480 // Check the signatures. | |
|
7194
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7172640: C2: instrinsic implementations in LibraryCallKit should use argument() instead of pop()
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|
2481 ciSignature* sig = callee()->signature(); |
| 0 | 2482 #ifdef ASSERT |
| 2483 if (!is_store) { | |
| 2484 // Object getObject(Object base, int/long offset), etc. | |
| 2485 BasicType rtype = sig->return_type()->basic_type(); | |
| 2486 if (rtype == T_ADDRESS_HOLDER && callee()->name() == ciSymbol::getAddress_name()) | |
| 2487 rtype = T_ADDRESS; // it is really a C void* | |
| 2488 assert(rtype == type, "getter must return the expected value"); | |
| 2489 if (!is_native_ptr) { | |
| 2490 assert(sig->count() == 2, "oop getter has 2 arguments"); | |
| 2491 assert(sig->type_at(0)->basic_type() == T_OBJECT, "getter base is object"); | |
| 2492 assert(sig->type_at(1)->basic_type() == T_LONG, "getter offset is correct"); | |
| 2493 } else { | |
| 2494 assert(sig->count() == 1, "native getter has 1 argument"); | |
| 2495 assert(sig->type_at(0)->basic_type() == T_LONG, "getter base is long"); | |
| 2496 } | |
| 2497 } else { | |
| 2498 // void putObject(Object base, int/long offset, Object x), etc. | |
| 2499 assert(sig->return_type()->basic_type() == T_VOID, "putter must not return a value"); | |
| 2500 if (!is_native_ptr) { | |
| 2501 assert(sig->count() == 3, "oop putter has 3 arguments"); | |
| 2502 assert(sig->type_at(0)->basic_type() == T_OBJECT, "putter base is object"); | |
| 2503 assert(sig->type_at(1)->basic_type() == T_LONG, "putter offset is correct"); | |
| 2504 } else { | |
| 2505 assert(sig->count() == 2, "native putter has 2 arguments"); | |
| 2506 assert(sig->type_at(0)->basic_type() == T_LONG, "putter base is long"); | |
| 2507 } | |
| 2508 BasicType vtype = sig->type_at(sig->count()-1)->basic_type(); | |
| 2509 if (vtype == T_ADDRESS_HOLDER && callee()->name() == ciSymbol::putAddress_name()) | |
| 2510 vtype = T_ADDRESS; // it is really a C void* | |
| 2511 assert(vtype == type, "putter must accept the expected value"); | |
| 2512 } | |
| 2513 #endif // ASSERT | |
| 2514 } | |
| 2515 #endif //PRODUCT | |
| 2516 | |
| 2517 C->set_has_unsafe_access(true); // Mark eventual nmethod as "unsafe". | |
| 2518 | |
|
7194
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7172640: C2: instrinsic implementations in LibraryCallKit should use argument() instead of pop()
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|
2519 Node* receiver = argument(0); // type: oop |
| 0 | 2520 |
| 2521 // Build address expression. See the code in inline_unsafe_prefetch. | |
|
7194
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7172640: C2: instrinsic implementations in LibraryCallKit should use argument() instead of pop()
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|
2522 Node* adr; |
|
beebba0acc11
7172640: C2: instrinsic implementations in LibraryCallKit should use argument() instead of pop()
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|
2523 Node* heap_base_oop = top(); |
|
3249
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7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2385
diff
changeset
|
2524 Node* offset = top(); |
|
7194
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7172640: C2: instrinsic implementations in LibraryCallKit should use argument() instead of pop()
twisti
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diff
changeset
|
2525 Node* val; |
|
3249
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7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
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diff
changeset
|
2526 |
| 0 | 2527 if (!is_native_ptr) { |
|
7194
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7172640: C2: instrinsic implementations in LibraryCallKit should use argument() instead of pop()
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|
2528 // The base is either a Java object or a value produced by Unsafe.staticFieldBase |
|
beebba0acc11
7172640: C2: instrinsic implementations in LibraryCallKit should use argument() instead of pop()
twisti
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diff
changeset
|
2529 Node* base = argument(1); // type: oop |
| 0 | 2530 // The offset is a value produced by Unsafe.staticFieldOffset or Unsafe.objectFieldOffset |
|
7194
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7172640: C2: instrinsic implementations in LibraryCallKit should use argument() instead of pop()
twisti
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diff
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|
2531 offset = argument(2); // type: long |
| 0 | 2532 // We currently rely on the cookies produced by Unsafe.xxxFieldOffset |
| 2533 // to be plain byte offsets, which are also the same as those accepted | |
| 2534 // by oopDesc::field_base. | |
| 2535 assert(Unsafe_field_offset_to_byte_offset(11) == 11, | |
| 2536 "fieldOffset must be byte-scaled"); | |
| 2537 // 32-bit machines ignore the high half! | |
| 2538 offset = ConvL2X(offset); | |
| 2539 adr = make_unsafe_address(base, offset); | |
| 2540 heap_base_oop = base; | |
|
7194
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7172640: C2: instrinsic implementations in LibraryCallKit should use argument() instead of pop()
twisti
parents:
6894
diff
changeset
|
2541 val = is_store ? argument(4) : NULL; |
| 0 | 2542 } else { |
|
7194
beebba0acc11
7172640: C2: instrinsic implementations in LibraryCallKit should use argument() instead of pop()
twisti
parents:
6894
diff
changeset
|
2543 Node* ptr = argument(1); // type: long |
|
beebba0acc11
7172640: C2: instrinsic implementations in LibraryCallKit should use argument() instead of pop()
twisti
parents:
6894
diff
changeset
|
2544 ptr = ConvL2X(ptr); // adjust Java long to machine word |
| 0 | 2545 adr = make_unsafe_address(NULL, ptr); |
|
7194
beebba0acc11
7172640: C2: instrinsic implementations in LibraryCallKit should use argument() instead of pop()
twisti
parents:
6894
diff
changeset
|
2546 val = is_store ? argument(3) : NULL; |
| 0 | 2547 } |
| 2548 | |
| 2549 const TypePtr *adr_type = _gvn.type(adr)->isa_ptr(); | |
| 2550 | |
| 2551 // First guess at the value type. | |
| 2552 const Type *value_type = Type::get_const_basic_type(type); | |
| 2553 | |
| 2554 // Try to categorize the address. If it comes up as TypeJavaPtr::BOTTOM, | |
| 2555 // there was not enough information to nail it down. | |
| 2556 Compile::AliasType* alias_type = C->alias_type(adr_type); | |
| 2557 assert(alias_type->index() != Compile::AliasIdxBot, "no bare pointers here"); | |
| 2558 | |
| 2559 // We will need memory barriers unless we can determine a unique | |
| 2560 // alias category for this reference. (Note: If for some reason | |
| 2561 // the barriers get omitted and the unsafe reference begins to "pollute" | |
| 2562 // the alias analysis of the rest of the graph, either Compile::can_alias | |
| 2563 // or Compile::must_alias will throw a diagnostic assert.) | |
| 2564 bool need_mem_bar = (alias_type->adr_type() == TypeOopPtr::BOTTOM); | |
| 2565 | |
|
3249
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2385
diff
changeset
|
2566 // If we are reading the value of the referent field of a Reference |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2385
diff
changeset
|
2567 // object (either by using Unsafe directly or through reflection) |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2385
diff
changeset
|
2568 // then, if G1 is enabled, we need to record the referent in an |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2385
diff
changeset
|
2569 // SATB log buffer using the pre-barrier mechanism. |
|
6615
09aad8452938
7190310: Inlining WeakReference.get(), and hoisting $referent may lead to non-terminating loops
kvn
parents:
6266
diff
changeset
|
2570 // Also we need to add memory barrier to prevent commoning reads |
|
09aad8452938
7190310: Inlining WeakReference.get(), and hoisting $referent may lead to non-terminating loops
kvn
parents:
6266
diff
changeset
|
2571 // from this field across safepoint since GC can change its value. |
|
09aad8452938
7190310: Inlining WeakReference.get(), and hoisting $referent may lead to non-terminating loops
kvn
parents:
6266
diff
changeset
|
2572 bool need_read_barrier = !is_native_ptr && !is_store && |
|
3249
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2385
diff
changeset
|
2573 offset != top() && heap_base_oop != top(); |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2385
diff
changeset
|
2574 |
| 0 | 2575 if (!is_store && type == T_OBJECT) { |
|
6795
7eca5de9e0b6
7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
roland
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6725
diff
changeset
|
2576 const TypeOopPtr* tjp = sharpen_unsafe_type(alias_type, adr_type, is_native_ptr); |
|
7eca5de9e0b6
7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
roland
parents:
6725
diff
changeset
|
2577 if (tjp != NULL) { |
| 0 | 2578 value_type = tjp; |
| 2579 } | |
| 2580 } | |
| 2581 | |
|
7194
beebba0acc11
7172640: C2: instrinsic implementations in LibraryCallKit should use argument() instead of pop()
twisti
parents:
6894
diff
changeset
|
2582 receiver = null_check(receiver); |
| 0 | 2583 if (stopped()) { |
| 2584 return true; | |
| 2585 } | |
| 2586 // Heap pointers get a null-check from the interpreter, | |
| 2587 // as a courtesy. However, this is not guaranteed by Unsafe, | |
| 2588 // and it is not possible to fully distinguish unintended nulls | |
| 2589 // from intended ones in this API. | |
| 2590 | |
| 2591 if (is_volatile) { | |
| 2592 // We need to emit leading and trailing CPU membars (see below) in | |
| 2593 // addition to memory membars when is_volatile. This is a little | |
| 2594 // too strong, but avoids the need to insert per-alias-type | |
| 2595 // volatile membars (for stores; compare Parse::do_put_xxx), which | |
| 605 | 2596 // we cannot do effectively here because we probably only have a |
| 0 | 2597 // rough approximation of type. |
| 2598 need_mem_bar = true; | |
| 2599 // For Stores, place a memory ordering barrier now. | |
|
17794
3514ee402842
8029101: PPC64 (part 211): ordering of Independent Reads of Independent Writes
goetz
parents:
14439
diff
changeset
|
2600 if (is_store) { |
| 0 | 2601 insert_mem_bar(Op_MemBarRelease); |
|
17794
3514ee402842
8029101: PPC64 (part 211): ordering of Independent Reads of Independent Writes
goetz
parents:
14439
diff
changeset
|
2602 } else { |
|
3514ee402842
8029101: PPC64 (part 211): ordering of Independent Reads of Independent Writes
goetz
parents:
14439
diff
changeset
|
2603 if (support_IRIW_for_not_multiple_copy_atomic_cpu) { |
|
3514ee402842
8029101: PPC64 (part 211): ordering of Independent Reads of Independent Writes
goetz
parents:
14439
diff
changeset
|
2604 insert_mem_bar(Op_MemBarVolatile); |
|
3514ee402842
8029101: PPC64 (part 211): ordering of Independent Reads of Independent Writes
goetz
parents:
14439
diff
changeset
|
2605 } |
|
3514ee402842
8029101: PPC64 (part 211): ordering of Independent Reads of Independent Writes
goetz
parents:
14439
diff
changeset
|
2606 } |
| 0 | 2607 } |
| 2608 | |
| 2609 // Memory barrier to prevent normal and 'unsafe' accesses from | |
| 2610 // bypassing each other. Happens after null checks, so the | |
| 2611 // exception paths do not take memory state from the memory barrier, | |
| 2612 // so there's no problems making a strong assert about mixing users | |
| 2613 // of safe & unsafe memory. Otherwise fails in a CTW of rt.jar | |
| 2614 // around 5701, class sun/reflect/UnsafeBooleanFieldAccessorImpl. | |
| 2615 if (need_mem_bar) insert_mem_bar(Op_MemBarCPUOrder); | |
| 2616 | |
| 2617 if (!is_store) { | |
|
14429
2113136690bc
8024921: PPC64 (part 113): Extend Load and Store nodes to know about memory ordering
goetz
parents:
13019
diff
changeset
|
2618 Node* p = make_load(control(), adr, value_type, type, adr_type, MemNode::unordered, is_volatile); |
|
7194
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7172640: C2: instrinsic implementations in LibraryCallKit should use argument() instead of pop()
twisti
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diff
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|
2619 // load value |
| 0 | 2620 switch (type) { |
| 2621 case T_BOOLEAN: | |
| 2622 case T_CHAR: | |
| 2623 case T_BYTE: | |
| 2624 case T_SHORT: | |
| 2625 case T_INT: | |
|
7194
beebba0acc11
7172640: C2: instrinsic implementations in LibraryCallKit should use argument() instead of pop()
twisti
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6894
diff
changeset
|
2626 case T_LONG: |
| 0 | 2627 case T_FLOAT: |
|
7194
beebba0acc11
7172640: C2: instrinsic implementations in LibraryCallKit should use argument() instead of pop()
twisti
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6894
diff
changeset
|
2628 case T_DOUBLE: |
|
3249
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2385
diff
changeset
|
2629 break; |
| 0 | 2630 case T_OBJECT: |
|
3249
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2385
diff
changeset
|
2631 if (need_read_barrier) { |
|
7194
beebba0acc11
7172640: C2: instrinsic implementations in LibraryCallKit should use argument() instead of pop()
twisti
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6894
diff
changeset
|
2632 insert_pre_barrier(heap_base_oop, offset, p, !(is_volatile || need_mem_bar)); |
|
3249
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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2385
diff
changeset
|
2633 } |
| 0 | 2634 break; |
| 2635 case T_ADDRESS: | |
| 2636 // Cast to an int type. | |
|
7194
beebba0acc11
7172640: C2: instrinsic implementations in LibraryCallKit should use argument() instead of pop()
twisti
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6894
diff
changeset
|
2637 p = _gvn.transform(new (C) CastP2XNode(NULL, p)); |
|
17776
9ab9f254cfe2
6653795: C2 intrinsic for Unsafe.getAddress performs pointer sign extension on 32-bit systems
poonam
parents:
17726
diff
changeset
|
2638 p = ConvX2UL(p); |
|
7194
beebba0acc11
7172640: C2: instrinsic implementations in LibraryCallKit should use argument() instead of pop()
twisti
parents:
6894
diff
changeset
|
2639 break; |
|
beebba0acc11
7172640: C2: instrinsic implementations in LibraryCallKit should use argument() instead of pop()
twisti
parents:
6894
diff
changeset
|
2640 default: |
|
beebba0acc11
7172640: C2: instrinsic implementations in LibraryCallKit should use argument() instead of pop()
twisti
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6894
diff
changeset
|
2641 fatal(err_msg_res("unexpected type %d: %s", type, type2name(type))); |
| 0 | 2642 break; |
| 2643 } | |
|
7194
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7172640: C2: instrinsic implementations in LibraryCallKit should use argument() instead of pop()
twisti
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6894
diff
changeset
|
2644 // The load node has the control of the preceding MemBarCPUOrder. All |
|
beebba0acc11
7172640: C2: instrinsic implementations in LibraryCallKit should use argument() instead of pop()
twisti
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6894
diff
changeset
|
2645 // following nodes will have the control of the MemBarCPUOrder inserted at |
|
beebba0acc11
7172640: C2: instrinsic implementations in LibraryCallKit should use argument() instead of pop()
twisti
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6894
diff
changeset
|
2646 // the end of this method. So, pushing the load onto the stack at a later |
|
beebba0acc11
7172640: C2: instrinsic implementations in LibraryCallKit should use argument() instead of pop()
twisti
parents:
6894
diff
changeset
|
2647 // point is fine. |
|
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|
2648 set_result(p); |
| 0 | 2649 } else { |
| 2650 // place effect of store into memory | |
| 2651 switch (type) { | |
| 2652 case T_DOUBLE: | |
| 2653 val = dstore_rounding(val); | |
| 2654 break; | |
| 2655 case T_ADDRESS: | |
| 2656 // Repackage the long as a pointer. | |
| 2657 val = ConvL2X(val); | |
|
11080
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|
2658 val = _gvn.transform(new (C) CastX2PNode(val)); |
| 0 | 2659 break; |
| 2660 } | |
| 2661 | |
|
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|
2662 MemNode::MemOrd mo = is_volatile ? MemNode::release : MemNode::unordered; |
| 0 | 2663 if (type != T_OBJECT ) { |
|
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|
2664 (void) store_to_memory(control(), adr, val, type, adr_type, mo, is_volatile); |
| 0 | 2665 } else { |
| 2666 // Possibly an oop being stored to Java heap or native memory | |
| 2667 if (!TypePtr::NULL_PTR->higher_equal(_gvn.type(heap_base_oop))) { | |
| 2668 // oop to Java heap. | |
|
14429
2113136690bc
8024921: PPC64 (part 113): Extend Load and Store nodes to know about memory ordering
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diff
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|
2669 (void) store_oop_to_unknown(control(), heap_base_oop, adr, adr_type, val, type, mo); |
| 0 | 2670 } else { |
| 2671 // We can't tell at compile time if we are storing in the Java heap or outside | |
| 2672 // of it. So we need to emit code to conditionally do the proper type of | |
| 2673 // store. | |
| 2674 | |
|
2444
07acc51c1d2a
7032314: Allow to generate CallLeafNoFPNode in IdealKit
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changeset
|
2675 IdealKit ideal(this); |
|
851
fc4be448891f
6851742: (EA) allocation elimination doesn't work with UseG1GC
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diff
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|
2676 #define __ ideal. |
| 0 | 2677 // QQQ who knows what probability is here?? |
|
851
fc4be448891f
6851742: (EA) allocation elimination doesn't work with UseG1GC
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diff
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|
2678 __ if_then(heap_base_oop, BoolTest::ne, null(), PROB_UNLIKELY(0.999)); { |
|
fc4be448891f
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|
2679 // Sync IdealKit and graphKit. |
|
2444
07acc51c1d2a
7032314: Allow to generate CallLeafNoFPNode in IdealKit
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|
2680 sync_kit(ideal); |
|
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|
2681 Node* st = store_oop_to_unknown(control(), heap_base_oop, adr, adr_type, val, type, mo); |
|
851
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|
2682 // Update IdealKit memory. |
|
2444
07acc51c1d2a
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|
2683 __ sync_kit(this); |
|
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|
2684 } __ else_(); { |
|
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|
2685 __ store(__ ctrl(), adr, val, type, alias_type->index(), mo, is_volatile); |
|
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|
2686 } __ end_if(); |
|
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|
2687 // Final sync IdealKit and GraphKit. |
|
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|
2688 final_sync(ideal); |
|
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|
2689 #undef __ |
| 0 | 2690 } |
| 2691 } | |
| 2692 } | |
| 2693 | |
| 2694 if (is_volatile) { | |
|
17794
3514ee402842
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diff
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|
2695 if (!is_store) { |
| 0 | 2696 insert_mem_bar(Op_MemBarAcquire); |
|
17794
3514ee402842
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|
2697 } else { |
|
3514ee402842
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|
2698 if (!support_IRIW_for_not_multiple_copy_atomic_cpu) { |
|
3514ee402842
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|
2699 insert_mem_bar(Op_MemBarVolatile); |
|
3514ee402842
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|
2700 } |
|
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diff
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|
2701 } |
| 0 | 2702 } |
| 2703 | |
| 2704 if (need_mem_bar) insert_mem_bar(Op_MemBarCPUOrder); | |
| 2705 | |
| 2706 return true; | |
| 2707 } | |
| 2708 | |
| 2709 //----------------------------inline_unsafe_prefetch---------------------------- | |
| 2710 | |
| 2711 bool LibraryCallKit::inline_unsafe_prefetch(bool is_native_ptr, bool is_store, bool is_static) { | |
| 2712 #ifndef PRODUCT | |
| 2713 { | |
| 2714 ResourceMark rm; | |
| 2715 // Check the signatures. | |
|
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|
2716 ciSignature* sig = callee()->signature(); |
| 0 | 2717 #ifdef ASSERT |
| 2718 // Object getObject(Object base, int/long offset), etc. | |
| 2719 BasicType rtype = sig->return_type()->basic_type(); | |
| 2720 if (!is_native_ptr) { | |
| 2721 assert(sig->count() == 2, "oop prefetch has 2 arguments"); | |
| 2722 assert(sig->type_at(0)->basic_type() == T_OBJECT, "prefetch base is object"); | |
| 2723 assert(sig->type_at(1)->basic_type() == T_LONG, "prefetcha offset is correct"); | |
| 2724 } else { | |
| 2725 assert(sig->count() == 1, "native prefetch has 1 argument"); | |
| 2726 assert(sig->type_at(0)->basic_type() == T_LONG, "prefetch base is long"); | |
| 2727 } | |
| 2728 #endif // ASSERT | |
| 2729 } | |
| 2730 #endif // !PRODUCT | |
| 2731 | |
| 2732 C->set_has_unsafe_access(true); // Mark eventual nmethod as "unsafe". | |
| 2733 | |
|
7194
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|
2734 const int idx = is_static ? 0 : 1; |
|
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|
2735 if (!is_static) { |
|
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|
2736 null_check_receiver(); |
|
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|
2737 if (stopped()) { |
|
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|
2738 return true; |
|
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|
2739 } |
|
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|
2740 } |
| 0 | 2741 |
| 2742 // Build address expression. See the code in inline_unsafe_access. | |
| 2743 Node *adr; | |
| 2744 if (!is_native_ptr) { | |
|
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|
2745 // The base is either a Java object or a value produced by Unsafe.staticFieldBase |
|
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|
2746 Node* base = argument(idx + 0); // type: oop |
| 0 | 2747 // The offset is a value produced by Unsafe.staticFieldOffset or Unsafe.objectFieldOffset |
|
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|
2748 Node* offset = argument(idx + 1); // type: long |
| 0 | 2749 // We currently rely on the cookies produced by Unsafe.xxxFieldOffset |
| 2750 // to be plain byte offsets, which are also the same as those accepted | |
| 2751 // by oopDesc::field_base. | |
| 2752 assert(Unsafe_field_offset_to_byte_offset(11) == 11, | |
| 2753 "fieldOffset must be byte-scaled"); | |
| 2754 // 32-bit machines ignore the high half! | |
| 2755 offset = ConvL2X(offset); | |
| 2756 adr = make_unsafe_address(base, offset); | |
| 2757 } else { | |
|
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|
2758 Node* ptr = argument(idx + 0); // type: long |
|
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|
2759 ptr = ConvL2X(ptr); // adjust Java long to machine word |
| 0 | 2760 adr = make_unsafe_address(NULL, ptr); |
| 2761 } | |
| 2762 | |
| 2763 // Generate the read or write prefetch | |
| 2764 Node *prefetch; | |
| 2765 if (is_store) { | |
|
6804
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7193318: C2: remove number of inputs requirement from Node's new operator
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6795
diff
changeset
|
2766 prefetch = new (C) PrefetchWriteNode(i_o(), adr); |
| 0 | 2767 } else { |
|
6804
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7193318: C2: remove number of inputs requirement from Node's new operator
kvn
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6795
diff
changeset
|
2768 prefetch = new (C) PrefetchReadNode(i_o(), adr); |
| 0 | 2769 } |
| 2770 prefetch->init_req(0, control()); | |
| 2771 set_i_o(_gvn.transform(prefetch)); | |
| 2772 | |
| 2773 return true; | |
| 2774 } | |
| 2775 | |
|
6795
7eca5de9e0b6
7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
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diff
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|
2776 //----------------------------inline_unsafe_load_store---------------------------- |
|
7194
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|
2777 // This method serves a couple of different customers (depending on LoadStoreKind): |
|
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twisti
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|
2778 // |
|
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7172640: C2: instrinsic implementations in LibraryCallKit should use argument() instead of pop()
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|
2779 // LS_cmpxchg: |
|
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twisti
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|
2780 // public final native boolean compareAndSwapObject(Object o, long offset, Object expected, Object x); |
|
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twisti
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diff
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|
2781 // public final native boolean compareAndSwapInt( Object o, long offset, int expected, int x); |
|
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twisti
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diff
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|
2782 // public final native boolean compareAndSwapLong( Object o, long offset, long expected, long x); |
|
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7172640: C2: instrinsic implementations in LibraryCallKit should use argument() instead of pop()
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|
2783 // |
|
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diff
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|
2784 // LS_xadd: |
|
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diff
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|
2785 // public int getAndAddInt( Object o, long offset, int delta) |
|
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|
2786 // public long getAndAddLong(Object o, long offset, long delta) |
|
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|
2787 // |
|
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|
2788 // LS_xchg: |
|
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|
2789 // int getAndSet(Object o, long offset, int newValue) |
|
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|
2790 // long getAndSet(Object o, long offset, long newValue) |
|
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|
2791 // Object getAndSet(Object o, long offset, Object newValue) |
|
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|
2792 // |
|
6795
7eca5de9e0b6
7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
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diff
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|
2793 bool LibraryCallKit::inline_unsafe_load_store(BasicType type, LoadStoreKind kind) { |
| 0 | 2794 // This basic scheme here is the same as inline_unsafe_access, but |
| 2795 // differs in enough details that combining them would make the code | |
| 2796 // overly confusing. (This is a true fact! I originally combined | |
| 2797 // them, but even I was confused by it!) As much code/comments as | |
| 2798 // possible are retained from inline_unsafe_access though to make | |
| 605 | 2799 // the correspondences clearer. - dl |
| 0 | 2800 |
| 2801 if (callee()->is_static()) return false; // caller must have the capability! | |
| 2802 | |
| 2803 #ifndef PRODUCT | |
|
6795
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7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
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|
2804 BasicType rtype; |
| 0 | 2805 { |
| 2806 ResourceMark rm; | |
|
7194
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|
2807 // Check the signatures. |
|
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|
2808 ciSignature* sig = callee()->signature(); |
|
6795
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|
2809 rtype = sig->return_type()->basic_type(); |
|
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7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
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|
2810 if (kind == LS_xadd || kind == LS_xchg) { |
|
7eca5de9e0b6
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|
2811 // Check the signatures. |
| 0 | 2812 #ifdef ASSERT |
|
6795
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|
2813 assert(rtype == type, "get and set must return the expected type"); |
|
7eca5de9e0b6
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|
2814 assert(sig->count() == 3, "get and set has 3 arguments"); |
|
7eca5de9e0b6
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|
2815 assert(sig->type_at(0)->basic_type() == T_OBJECT, "get and set base is object"); |
|
7eca5de9e0b6
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|
2816 assert(sig->type_at(1)->basic_type() == T_LONG, "get and set offset is long"); |
|
7eca5de9e0b6
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|
2817 assert(sig->type_at(2)->basic_type() == type, "get and set must take expected type as new value/delta"); |
| 0 | 2818 #endif // ASSERT |
|
6795
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|
2819 } else if (kind == LS_cmpxchg) { |
|
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|
2820 // Check the signatures. |
|
7eca5de9e0b6
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|
2821 #ifdef ASSERT |
|
7eca5de9e0b6
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|
2822 assert(rtype == T_BOOLEAN, "CAS must return boolean"); |
|
7eca5de9e0b6
7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
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|
2823 assert(sig->count() == 4, "CAS has 4 arguments"); |
|
7eca5de9e0b6
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6725
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|
2824 assert(sig->type_at(0)->basic_type() == T_OBJECT, "CAS base is object"); |
|
7eca5de9e0b6
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|
2825 assert(sig->type_at(1)->basic_type() == T_LONG, "CAS offset is long"); |
|
7eca5de9e0b6
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|
2826 #endif // ASSERT |
|
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|
2827 } else { |
|
7eca5de9e0b6
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|
2828 ShouldNotReachHere(); |
|
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diff
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|
2829 } |
| 0 | 2830 } |
| 2831 #endif //PRODUCT | |
| 2832 | |
| 2833 C->set_has_unsafe_access(true); // Mark eventual nmethod as "unsafe". | |
| 2834 | |
|
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|
2835 // Get arguments: |
|
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|
2836 Node* receiver = NULL; |
|
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|
2837 Node* base = NULL; |
|
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|
2838 Node* offset = NULL; |
|
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|
2839 Node* oldval = NULL; |
|
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|
2840 Node* newval = NULL; |
|
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|
2841 if (kind == LS_cmpxchg) { |
|
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changeset
|
2842 const bool two_slot_type = type2size[type] == 2; |
|
beebba0acc11
7172640: C2: instrinsic implementations in LibraryCallKit should use argument() instead of pop()
twisti
parents:
6894
diff
changeset
|
2843 receiver = argument(0); // type: oop |
|
beebba0acc11
7172640: C2: instrinsic implementations in LibraryCallKit should use argument() instead of pop()
twisti
parents:
6894
diff
changeset
|
2844 base = argument(1); // type: oop |
|
beebba0acc11
7172640: C2: instrinsic implementations in LibraryCallKit should use argument() instead of pop()
twisti
parents:
6894
diff
changeset
|
2845 offset = argument(2); // type: long |
|
beebba0acc11
7172640: C2: instrinsic implementations in LibraryCallKit should use argument() instead of pop()
twisti
parents:
6894
diff
changeset
|
2846 oldval = argument(4); // type: oop, int, or long |
|
beebba0acc11
7172640: C2: instrinsic implementations in LibraryCallKit should use argument() instead of pop()
twisti
parents:
6894
diff
changeset
|
2847 newval = argument(two_slot_type ? 6 : 5); // type: oop, int, or long |
|
beebba0acc11
7172640: C2: instrinsic implementations in LibraryCallKit should use argument() instead of pop()
twisti
parents:
6894
diff
changeset
|
2848 } else if (kind == LS_xadd || kind == LS_xchg){ |
|
beebba0acc11
7172640: C2: instrinsic implementations in LibraryCallKit should use argument() instead of pop()
twisti
parents:
6894
diff
changeset
|
2849 receiver = argument(0); // type: oop |
|
beebba0acc11
7172640: C2: instrinsic implementations in LibraryCallKit should use argument() instead of pop()
twisti
parents:
6894
diff
changeset
|
2850 base = argument(1); // type: oop |
|
beebba0acc11
7172640: C2: instrinsic implementations in LibraryCallKit should use argument() instead of pop()
twisti
parents:
6894
diff
changeset
|
2851 offset = argument(2); // type: long |
|
beebba0acc11
7172640: C2: instrinsic implementations in LibraryCallKit should use argument() instead of pop()
twisti
parents:
6894
diff
changeset
|
2852 oldval = NULL; |
|
beebba0acc11
7172640: C2: instrinsic implementations in LibraryCallKit should use argument() instead of pop()
twisti
parents:
6894
diff
changeset
|
2853 newval = argument(4); // type: oop, int, or long |
|
beebba0acc11
7172640: C2: instrinsic implementations in LibraryCallKit should use argument() instead of pop()
twisti
parents:
6894
diff
changeset
|
2854 } |
|
beebba0acc11
7172640: C2: instrinsic implementations in LibraryCallKit should use argument() instead of pop()
twisti
parents:
6894
diff
changeset
|
2855 |
|
beebba0acc11
7172640: C2: instrinsic implementations in LibraryCallKit should use argument() instead of pop()
twisti
parents:
6894
diff
changeset
|
2856 // Null check receiver. |
|
beebba0acc11
7172640: C2: instrinsic implementations in LibraryCallKit should use argument() instead of pop()
twisti
parents:
6894
diff
changeset
|
2857 receiver = null_check(receiver); |
| 0 | 2858 if (stopped()) { |
| 2859 return true; | |
| 2860 } | |
| 2861 | |
| 2862 // Build field offset expression. | |
| 2863 // We currently rely on the cookies produced by Unsafe.xxxFieldOffset | |
| 2864 // to be plain byte offsets, which are also the same as those accepted | |
| 2865 // by oopDesc::field_base. | |
| 2866 assert(Unsafe_field_offset_to_byte_offset(11) == 11, "fieldOffset must be byte-scaled"); | |
| 2867 // 32-bit machines ignore the high half of long offsets | |
| 2868 offset = ConvL2X(offset); | |
| 2869 Node* adr = make_unsafe_address(base, offset); | |
| 2870 const TypePtr *adr_type = _gvn.type(adr)->isa_ptr(); | |
| 2871 | |
|
6795
7eca5de9e0b6
7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
roland
parents:
6725
diff
changeset
|
2872 // For CAS, unlike inline_unsafe_access, there seems no point in |
|
7eca5de9e0b6
7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
roland
parents:
6725
diff
changeset
|
2873 // trying to refine types. Just use the coarse types here. |
| 0 | 2874 const Type *value_type = Type::get_const_basic_type(type); |
| 2875 Compile::AliasType* alias_type = C->alias_type(adr_type); | |
| 2876 assert(alias_type->index() != Compile::AliasIdxBot, "no bare pointers here"); | |
|
6795
7eca5de9e0b6
7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
roland
parents:
6725
diff
changeset
|
2877 |
|
7eca5de9e0b6
7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
roland
parents:
6725
diff
changeset
|
2878 if (kind == LS_xchg && type == T_OBJECT) { |
|
7eca5de9e0b6
7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
roland
parents:
6725
diff
changeset
|
2879 const TypeOopPtr* tjp = sharpen_unsafe_type(alias_type, adr_type); |
|
7eca5de9e0b6
7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
roland
parents:
6725
diff
changeset
|
2880 if (tjp != NULL) { |
|
7eca5de9e0b6
7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
roland
parents:
6725
diff
changeset
|
2881 value_type = tjp; |
|
7eca5de9e0b6
7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
roland
parents:
6725
diff
changeset
|
2882 } |
|
7eca5de9e0b6
7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
roland
parents:
6725
diff
changeset
|
2883 } |
|
7eca5de9e0b6
7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
roland
parents:
6725
diff
changeset
|
2884 |
| 0 | 2885 int alias_idx = C->get_alias_index(adr_type); |
| 2886 | |
|
6795
7eca5de9e0b6
7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
roland
parents:
6725
diff
changeset
|
2887 // Memory-model-wise, a LoadStore acts like a little synchronized |
|
7eca5de9e0b6
7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
roland
parents:
6725
diff
changeset
|
2888 // block, so needs barriers on each side. These don't translate |
|
7eca5de9e0b6
7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
roland
parents:
6725
diff
changeset
|
2889 // into actual barriers on most machines, but we still need rest of |
| 0 | 2890 // compiler to respect ordering. |
| 2891 | |
| 2892 insert_mem_bar(Op_MemBarRelease); | |
| 2893 insert_mem_bar(Op_MemBarCPUOrder); | |
| 2894 | |
| 2895 // 4984716: MemBars must be inserted before this | |
| 2896 // memory node in order to avoid a false | |
| 2897 // dependency which will confuse the scheduler. | |
| 2898 Node *mem = memory(alias_idx); | |
| 2899 | |
| 2900 // For now, we handle only those cases that actually exist: ints, | |
| 2901 // longs, and Object. Adding others should be straightforward. | |
|
6795
7eca5de9e0b6
7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
roland
parents:
6725
diff
changeset
|
2902 Node* load_store; |
| 0 | 2903 switch(type) { |
| 2904 case T_INT: | |
|
6795
7eca5de9e0b6
7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
roland
parents:
6725
diff
changeset
|
2905 if (kind == LS_xadd) { |
|
6804
e626685e9f6c
7193318: C2: remove number of inputs requirement from Node's new operator
kvn
parents:
6795
diff
changeset
|
2906 load_store = _gvn.transform(new (C) GetAndAddINode(control(), mem, adr, newval, adr_type)); |
|
6795
7eca5de9e0b6
7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
roland
parents:
6725
diff
changeset
|
2907 } else if (kind == LS_xchg) { |
|
6804
e626685e9f6c
7193318: C2: remove number of inputs requirement from Node's new operator
kvn
parents:
6795
diff
changeset
|
2908 load_store = _gvn.transform(new (C) GetAndSetINode(control(), mem, adr, newval, adr_type)); |
|
6795
7eca5de9e0b6
7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
roland
parents:
6725
diff
changeset
|
2909 } else if (kind == LS_cmpxchg) { |
|
6804
e626685e9f6c
7193318: C2: remove number of inputs requirement from Node's new operator
kvn
parents:
6795
diff
changeset
|
2910 load_store = _gvn.transform(new (C) CompareAndSwapINode(control(), mem, adr, newval, oldval)); |
|
6795
7eca5de9e0b6
7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
roland
parents:
6725
diff
changeset
|
2911 } else { |
|
7eca5de9e0b6
7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
roland
parents:
6725
diff
changeset
|
2912 ShouldNotReachHere(); |
|
7eca5de9e0b6
7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
roland
parents:
6725
diff
changeset
|
2913 } |
| 0 | 2914 break; |
| 2915 case T_LONG: | |
|
6795
7eca5de9e0b6
7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
roland
parents:
6725
diff
changeset
|
2916 if (kind == LS_xadd) { |
|
6804
e626685e9f6c
7193318: C2: remove number of inputs requirement from Node's new operator
kvn
parents:
6795
diff
changeset
|
2917 load_store = _gvn.transform(new (C) GetAndAddLNode(control(), mem, adr, newval, adr_type)); |
|
6795
7eca5de9e0b6
7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
roland
parents:
6725
diff
changeset
|
2918 } else if (kind == LS_xchg) { |
|
6804
e626685e9f6c
7193318: C2: remove number of inputs requirement from Node's new operator
kvn
parents:
6795
diff
changeset
|
2919 load_store = _gvn.transform(new (C) GetAndSetLNode(control(), mem, adr, newval, adr_type)); |
|
6795
7eca5de9e0b6
7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
roland
parents:
6725
diff
changeset
|
2920 } else if (kind == LS_cmpxchg) { |
|
6804
e626685e9f6c
7193318: C2: remove number of inputs requirement from Node's new operator
kvn
parents:
6795
diff
changeset
|
2921 load_store = _gvn.transform(new (C) CompareAndSwapLNode(control(), mem, adr, newval, oldval)); |
|
6795
7eca5de9e0b6
7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
roland
parents:
6725
diff
changeset
|
2922 } else { |
|
7eca5de9e0b6
7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
roland
parents:
6725
diff
changeset
|
2923 ShouldNotReachHere(); |
|
7eca5de9e0b6
7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
roland
parents:
6725
diff
changeset
|
2924 } |
| 0 | 2925 break; |
| 2926 case T_OBJECT: | |
|
4894
b9bc6cae88f2
7143491: G1 C2 CTW: assert(p2x->outcnt() == 2) failed: expects 2 users: Xor and URShift nodes
kvn
parents:
4778
diff
changeset
|
2927 // Transformation of a value which could be NULL pointer (CastPP #NULL) |
|
b9bc6cae88f2
7143491: G1 C2 CTW: assert(p2x->outcnt() == 2) failed: expects 2 users: Xor and URShift nodes
kvn
parents:
4778
diff
changeset
|
2928 // could be delayed during Parse (for example, in adjust_map_after_if()). |
|
b9bc6cae88f2
7143491: G1 C2 CTW: assert(p2x->outcnt() == 2) failed: expects 2 users: Xor and URShift nodes
kvn
parents:
4778
diff
changeset
|
2929 // Execute transformation here to avoid barrier generation in such case. |
|
b9bc6cae88f2
7143491: G1 C2 CTW: assert(p2x->outcnt() == 2) failed: expects 2 users: Xor and URShift nodes
kvn
parents:
4778
diff
changeset
|
2930 if (_gvn.type(newval) == TypePtr::NULL_PTR) |
|
b9bc6cae88f2
7143491: G1 C2 CTW: assert(p2x->outcnt() == 2) failed: expects 2 users: Xor and URShift nodes
kvn
parents:
4778
diff
changeset
|
2931 newval = _gvn.makecon(TypePtr::NULL_PTR); |
|
b9bc6cae88f2
7143491: G1 C2 CTW: assert(p2x->outcnt() == 2) failed: expects 2 users: Xor and URShift nodes
kvn
parents:
4778
diff
changeset
|
2932 |
|
b9bc6cae88f2
7143491: G1 C2 CTW: assert(p2x->outcnt() == 2) failed: expects 2 users: Xor and URShift nodes
kvn
parents:
4778
diff
changeset
|
2933 // Reference stores need a store barrier. |
|
12169
29aa8936f03c
8023597: Optimize G1 barriers code for unsafe load_store
kvn
parents:
12078
diff
changeset
|
2934 if (kind == LS_xchg) { |
|
29aa8936f03c
8023597: Optimize G1 barriers code for unsafe load_store
kvn
parents:
12078
diff
changeset
|
2935 // If pre-barrier must execute before the oop store, old value will require do_load here. |
|
29aa8936f03c
8023597: Optimize G1 barriers code for unsafe load_store
kvn
parents:
12078
diff
changeset
|
2936 if (!can_move_pre_barrier()) { |
|
29aa8936f03c
8023597: Optimize G1 barriers code for unsafe load_store
kvn
parents:
12078
diff
changeset
|
2937 pre_barrier(true /* do_load*/, |
|
29aa8936f03c
8023597: Optimize G1 barriers code for unsafe load_store
kvn
parents:
12078
diff
changeset
|
2938 control(), base, adr, alias_idx, newval, value_type->make_oopptr(), |
|
29aa8936f03c
8023597: Optimize G1 barriers code for unsafe load_store
kvn
parents:
12078
diff
changeset
|
2939 NULL /* pre_val*/, |
|
29aa8936f03c
8023597: Optimize G1 barriers code for unsafe load_store
kvn
parents:
12078
diff
changeset
|
2940 T_OBJECT); |
|
29aa8936f03c
8023597: Optimize G1 barriers code for unsafe load_store
kvn
parents:
12078
diff
changeset
|
2941 } // Else move pre_barrier to use load_store value, see below. |
|
29aa8936f03c
8023597: Optimize G1 barriers code for unsafe load_store
kvn
parents:
12078
diff
changeset
|
2942 } else if (kind == LS_cmpxchg) { |
|
29aa8936f03c
8023597: Optimize G1 barriers code for unsafe load_store
kvn
parents:
12078
diff
changeset
|
2943 // Same as for newval above: |
|
29aa8936f03c
8023597: Optimize G1 barriers code for unsafe load_store
kvn
parents:
12078
diff
changeset
|
2944 if (_gvn.type(oldval) == TypePtr::NULL_PTR) { |
|
29aa8936f03c
8023597: Optimize G1 barriers code for unsafe load_store
kvn
parents:
12078
diff
changeset
|
2945 oldval = _gvn.makecon(TypePtr::NULL_PTR); |
|
29aa8936f03c
8023597: Optimize G1 barriers code for unsafe load_store
kvn
parents:
12078
diff
changeset
|
2946 } |
|
29aa8936f03c
8023597: Optimize G1 barriers code for unsafe load_store
kvn
parents:
12078
diff
changeset
|
2947 // The only known value which might get overwritten is oldval. |
|
29aa8936f03c
8023597: Optimize G1 barriers code for unsafe load_store
kvn
parents:
12078
diff
changeset
|
2948 pre_barrier(false /* do_load */, |
|
29aa8936f03c
8023597: Optimize G1 barriers code for unsafe load_store
kvn
parents:
12078
diff
changeset
|
2949 control(), NULL, NULL, max_juint, NULL, NULL, |
|
29aa8936f03c
8023597: Optimize G1 barriers code for unsafe load_store
kvn
parents:
12078
diff
changeset
|
2950 oldval /* pre_val */, |
|
29aa8936f03c
8023597: Optimize G1 barriers code for unsafe load_store
kvn
parents:
12078
diff
changeset
|
2951 T_OBJECT); |
|
29aa8936f03c
8023597: Optimize G1 barriers code for unsafe load_store
kvn
parents:
12078
diff
changeset
|
2952 } else { |
|
29aa8936f03c
8023597: Optimize G1 barriers code for unsafe load_store
kvn
parents:
12078
diff
changeset
|
2953 ShouldNotReachHere(); |
|
29aa8936f03c
8023597: Optimize G1 barriers code for unsafe load_store
kvn
parents:
12078
diff
changeset
|
2954 } |
|
29aa8936f03c
8023597: Optimize G1 barriers code for unsafe load_store
kvn
parents:
12078
diff
changeset
|
2955 |
|
113
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
34
diff
changeset
|
2956 #ifdef _LP64 |
| 163 | 2957 if (adr->bottom_type()->is_ptr_to_narrowoop()) { |
|
6804
e626685e9f6c
7193318: C2: remove number of inputs requirement from Node's new operator
kvn
parents:
6795
diff
changeset
|
2958 Node *newval_enc = _gvn.transform(new (C) EncodePNode(newval, newval->bottom_type()->make_narrowoop())); |
|
6795
7eca5de9e0b6
7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
roland
parents:
6725
diff
changeset
|
2959 if (kind == LS_xchg) { |
|
6804
e626685e9f6c
7193318: C2: remove number of inputs requirement from Node's new operator
kvn
parents:
6795
diff
changeset
|
2960 load_store = _gvn.transform(new (C) GetAndSetNNode(control(), mem, adr, |
|
14429
2113136690bc
8024921: PPC64 (part 113): Extend Load and Store nodes to know about memory ordering
goetz
parents:
13019
diff
changeset
|
2961 newval_enc, adr_type, value_type->make_narrowoop())); |
|
6795
7eca5de9e0b6
7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
roland
parents:
6725
diff
changeset
|
2962 } else { |
|
7eca5de9e0b6
7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
roland
parents:
6725
diff
changeset
|
2963 assert(kind == LS_cmpxchg, "wrong LoadStore operation"); |
|
6804
e626685e9f6c
7193318: C2: remove number of inputs requirement from Node's new operator
kvn
parents:
6795
diff
changeset
|
2964 Node *oldval_enc = _gvn.transform(new (C) EncodePNode(oldval, oldval->bottom_type()->make_narrowoop())); |
|
e626685e9f6c
7193318: C2: remove number of inputs requirement from Node's new operator
kvn
parents:
6795
diff
changeset
|
2965 load_store = _gvn.transform(new (C) CompareAndSwapNNode(control(), mem, adr, |
|
14429
2113136690bc
8024921: PPC64 (part 113): Extend Load and Store nodes to know about memory ordering
goetz
parents:
13019
diff
changeset
|
2966 newval_enc, oldval_enc)); |
|
6795
7eca5de9e0b6
7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
roland
parents:
6725
diff
changeset
|
2967 } |
|
113
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
34
diff
changeset
|
2968 } else |
|
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
34
diff
changeset
|
2969 #endif |
|
221
1e026f8da827
6710487: More than half of JDI Regression tests hang with COOPs in -Xcomp mode
kvn
parents:
174
diff
changeset
|
2970 { |
|
6795
7eca5de9e0b6
7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
roland
parents:
6725
diff
changeset
|
2971 if (kind == LS_xchg) { |
|
6804
e626685e9f6c
7193318: C2: remove number of inputs requirement from Node's new operator
kvn
parents:
6795
diff
changeset
|
2972 load_store = _gvn.transform(new (C) GetAndSetPNode(control(), mem, adr, newval, adr_type, value_type->is_oopptr())); |
|
6795
7eca5de9e0b6
7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
roland
parents:
6725
diff
changeset
|
2973 } else { |
|
7eca5de9e0b6
7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
roland
parents:
6725
diff
changeset
|
2974 assert(kind == LS_cmpxchg, "wrong LoadStore operation"); |
|
6804
e626685e9f6c
7193318: C2: remove number of inputs requirement from Node's new operator
kvn
parents:
6795
diff
changeset
|
2975 load_store = _gvn.transform(new (C) CompareAndSwapPNode(control(), mem, adr, newval, oldval)); |
|
6795
7eca5de9e0b6
7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
roland
parents:
6725
diff
changeset
|
2976 } |
|
221
1e026f8da827
6710487: More than half of JDI Regression tests hang with COOPs in -Xcomp mode
kvn
parents:
174
diff
changeset
|
2977 } |
|
6795
7eca5de9e0b6
7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
roland
parents:
6725
diff
changeset
|
2978 post_barrier(control(), load_store, base, adr, alias_idx, newval, T_OBJECT, true); |
| 0 | 2979 break; |
| 2980 default: | |
|
7194
beebba0acc11
7172640: C2: instrinsic implementations in LibraryCallKit should use argument() instead of pop()
twisti
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6894
diff
changeset
|
2981 fatal(err_msg_res("unexpected type %d: %s", type, type2name(type))); |
| 0 | 2982 break; |
| 2983 } | |
| 2984 | |
|
6795
7eca5de9e0b6
7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
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6725
diff
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|
2985 // SCMemProjNodes represent the memory state of a LoadStore. Their |
|
7eca5de9e0b6
7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
roland
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6725
diff
changeset
|
2986 // main role is to prevent LoadStore nodes from being optimized away |
|
7eca5de9e0b6
7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
roland
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6725
diff
changeset
|
2987 // when their results aren't used. |
|
11080
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
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10405
diff
changeset
|
2988 Node* proj = _gvn.transform(new (C) SCMemProjNode(load_store)); |
| 0 | 2989 set_memory(proj, alias_idx); |
| 2990 | |
|
12169
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8023597: Optimize G1 barriers code for unsafe load_store
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|
2991 if (type == T_OBJECT && kind == LS_xchg) { |
|
29aa8936f03c
8023597: Optimize G1 barriers code for unsafe load_store
kvn
parents:
12078
diff
changeset
|
2992 #ifdef _LP64 |
|
29aa8936f03c
8023597: Optimize G1 barriers code for unsafe load_store
kvn
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diff
changeset
|
2993 if (adr->bottom_type()->is_ptr_to_narrowoop()) { |
|
29aa8936f03c
8023597: Optimize G1 barriers code for unsafe load_store
kvn
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12078
diff
changeset
|
2994 load_store = _gvn.transform(new (C) DecodeNNode(load_store, load_store->get_ptr_type())); |
|
29aa8936f03c
8023597: Optimize G1 barriers code for unsafe load_store
kvn
parents:
12078
diff
changeset
|
2995 } |
|
29aa8936f03c
8023597: Optimize G1 barriers code for unsafe load_store
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12078
diff
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|
2996 #endif |
|
29aa8936f03c
8023597: Optimize G1 barriers code for unsafe load_store
kvn
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12078
diff
changeset
|
2997 if (can_move_pre_barrier()) { |
|
29aa8936f03c
8023597: Optimize G1 barriers code for unsafe load_store
kvn
parents:
12078
diff
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|
2998 // Don't need to load pre_val. The old value is returned by load_store. |
|
29aa8936f03c
8023597: Optimize G1 barriers code for unsafe load_store
kvn
parents:
12078
diff
changeset
|
2999 // The pre_barrier can execute after the xchg as long as no safepoint |
|
29aa8936f03c
8023597: Optimize G1 barriers code for unsafe load_store
kvn
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12078
diff
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|
3000 // gets inserted between them. |
|
29aa8936f03c
8023597: Optimize G1 barriers code for unsafe load_store
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diff
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|
3001 pre_barrier(false /* do_load */, |
|
29aa8936f03c
8023597: Optimize G1 barriers code for unsafe load_store
kvn
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12078
diff
changeset
|
3002 control(), NULL, NULL, max_juint, NULL, NULL, |
|
29aa8936f03c
8023597: Optimize G1 barriers code for unsafe load_store
kvn
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12078
diff
changeset
|
3003 load_store /* pre_val */, |
|
29aa8936f03c
8023597: Optimize G1 barriers code for unsafe load_store
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diff
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|
3004 T_OBJECT); |
|
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diff
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|
3005 } |
|
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8023597: Optimize G1 barriers code for unsafe load_store
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diff
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|
3006 } |
|
29aa8936f03c
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diff
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|
3007 |
| 0 | 3008 // Add the trailing membar surrounding the access |
| 3009 insert_mem_bar(Op_MemBarCPUOrder); | |
| 3010 insert_mem_bar(Op_MemBarAcquire); | |
| 3011 | |
|
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7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
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diff
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|
3012 assert(type2size[load_store->bottom_type()->basic_type()] == type2size[rtype], "result type should match"); |
|
7194
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diff
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|
3013 set_result(load_store); |
| 0 | 3014 return true; |
| 3015 } | |
| 3016 | |
|
7194
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|
3017 //----------------------------inline_unsafe_ordered_store---------------------- |
|
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|
3018 // public native void sun.misc.Unsafe.putOrderedObject(Object o, long offset, Object x); |
|
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7172640: C2: instrinsic implementations in LibraryCallKit should use argument() instead of pop()
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|
3019 // public native void sun.misc.Unsafe.putOrderedInt(Object o, long offset, int x); |
|
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|
3020 // public native void sun.misc.Unsafe.putOrderedLong(Object o, long offset, long x); |
| 0 | 3021 bool LibraryCallKit::inline_unsafe_ordered_store(BasicType type) { |
| 3022 // This is another variant of inline_unsafe_access, differing in | |
| 3023 // that it always issues store-store ("release") barrier and ensures | |
| 3024 // store-atomicity (which only matters for "long"). | |
| 3025 | |
| 3026 if (callee()->is_static()) return false; // caller must have the capability! | |
| 3027 | |
| 3028 #ifndef PRODUCT | |
| 3029 { | |
| 3030 ResourceMark rm; | |
| 3031 // Check the signatures. | |
|
7194
beebba0acc11
7172640: C2: instrinsic implementations in LibraryCallKit should use argument() instead of pop()
twisti
parents:
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diff
changeset
|
3032 ciSignature* sig = callee()->signature(); |
| 0 | 3033 #ifdef ASSERT |
| 3034 BasicType rtype = sig->return_type()->basic_type(); | |
| 3035 assert(rtype == T_VOID, "must return void"); | |
| 3036 assert(sig->count() == 3, "has 3 arguments"); | |
| 3037 assert(sig->type_at(0)->basic_type() == T_OBJECT, "base is object"); | |
| 3038 assert(sig->type_at(1)->basic_type() == T_LONG, "offset is long"); | |
| 3039 #endif // ASSERT | |
| 3040 } | |
| 3041 #endif //PRODUCT | |
| 3042 | |
| 3043 C->set_has_unsafe_access(true); // Mark eventual nmethod as "unsafe". | |
| 3044 | |
|
7194
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diff
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|
3045 // Get arguments: |
|
beebba0acc11
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twisti
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diff
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|
3046 Node* receiver = argument(0); // type: oop |
|
beebba0acc11
7172640: C2: instrinsic implementations in LibraryCallKit should use argument() instead of pop()
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|
3047 Node* base = argument(1); // type: oop |
|
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7172640: C2: instrinsic implementations in LibraryCallKit should use argument() instead of pop()
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diff
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|
3048 Node* offset = argument(2); // type: long |
|
beebba0acc11
7172640: C2: instrinsic implementations in LibraryCallKit should use argument() instead of pop()
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diff
changeset
|
3049 Node* val = argument(4); // type: oop, int, or long |
|
beebba0acc11
7172640: C2: instrinsic implementations in LibraryCallKit should use argument() instead of pop()
twisti
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6894
diff
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|
3050 |
|
beebba0acc11
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diff
changeset
|
3051 // Null check receiver. |
|
beebba0acc11
7172640: C2: instrinsic implementations in LibraryCallKit should use argument() instead of pop()
twisti
parents:
6894
diff
changeset
|
3052 receiver = null_check(receiver); |
| 0 | 3053 if (stopped()) { |
| 3054 return true; | |
| 3055 } | |
| 3056 | |
| 3057 // Build field offset expression. | |
| 3058 assert(Unsafe_field_offset_to_byte_offset(11) == 11, "fieldOffset must be byte-scaled"); | |
| 3059 // 32-bit machines ignore the high half of long offsets | |
| 3060 offset = ConvL2X(offset); | |
| 3061 Node* adr = make_unsafe_address(base, offset); | |
| 3062 const TypePtr *adr_type = _gvn.type(adr)->isa_ptr(); | |
| 3063 const Type *value_type = Type::get_const_basic_type(type); | |
| 3064 Compile::AliasType* alias_type = C->alias_type(adr_type); | |
| 3065 | |
| 3066 insert_mem_bar(Op_MemBarRelease); | |
| 3067 insert_mem_bar(Op_MemBarCPUOrder); | |
| 3068 // Ensure that the store is atomic for longs: | |
|
7194
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twisti
parents:
6894
diff
changeset
|
3069 const bool require_atomic_access = true; |
| 0 | 3070 Node* store; |
| 3071 if (type == T_OBJECT) // reference stores need a store barrier. | |
|
14429
2113136690bc
8024921: PPC64 (part 113): Extend Load and Store nodes to know about memory ordering
goetz
parents:
13019
diff
changeset
|
3072 store = store_oop_to_unknown(control(), base, adr, adr_type, val, type, MemNode::release); |
| 0 | 3073 else { |
|
14429
2113136690bc
8024921: PPC64 (part 113): Extend Load and Store nodes to know about memory ordering
goetz
parents:
13019
diff
changeset
|
3074 store = store_to_memory(control(), adr, val, type, adr_type, MemNode::release, require_atomic_access); |
| 0 | 3075 } |
| 3076 insert_mem_bar(Op_MemBarCPUOrder); | |
| 3077 return true; | |
| 3078 } | |
| 3079 | |
| 7425 | 3080 bool LibraryCallKit::inline_unsafe_fence(vmIntrinsics::ID id) { |
| 3081 // Regardless of form, don't allow previous ld/st to move down, | |
| 3082 // then issue acquire, release, or volatile mem_bar. | |
| 3083 insert_mem_bar(Op_MemBarCPUOrder); | |
| 3084 switch(id) { | |
| 3085 case vmIntrinsics::_loadFence: | |
|
14439
50fdb38839eb
8028515: PPPC64 (part 113.2): opto: Introduce LoadFence/StoreFence.
goetz
parents:
14429
diff
changeset
|
3086 insert_mem_bar(Op_LoadFence); |
| 7425 | 3087 return true; |
| 3088 case vmIntrinsics::_storeFence: | |
|
14439
50fdb38839eb
8028515: PPPC64 (part 113.2): opto: Introduce LoadFence/StoreFence.
goetz
parents:
14429
diff
changeset
|
3089 insert_mem_bar(Op_StoreFence); |
| 7425 | 3090 return true; |
| 3091 case vmIntrinsics::_fullFence: | |
| 3092 insert_mem_bar(Op_MemBarVolatile); | |
| 3093 return true; | |
| 3094 default: | |
| 3095 fatal_unexpected_iid(id); | |
| 3096 return false; | |
| 3097 } | |
| 3098 } | |
| 3099 | |
| 12078 | 3100 bool LibraryCallKit::klass_needs_init_guard(Node* kls) { |
| 3101 if (!kls->is_Con()) { | |
| 3102 return true; | |
| 3103 } | |
| 3104 const TypeKlassPtr* klsptr = kls->bottom_type()->isa_klassptr(); | |
| 3105 if (klsptr == NULL) { | |
| 3106 return true; | |
| 3107 } | |
| 3108 ciInstanceKlass* ik = klsptr->klass()->as_instance_klass(); | |
| 3109 // don't need a guard for a klass that is already initialized | |
| 3110 return !ik->is_initialized(); | |
| 3111 } | |
| 3112 | |
|
7194
beebba0acc11
7172640: C2: instrinsic implementations in LibraryCallKit should use argument() instead of pop()
twisti
parents:
6894
diff
changeset
|
3113 //----------------------------inline_unsafe_allocate--------------------------- |
| 12078 | 3114 // public native Object sun.misc.Unsafe.allocateInstance(Class<?> cls); |
| 0 | 3115 bool LibraryCallKit::inline_unsafe_allocate() { |
| 3116 if (callee()->is_static()) return false; // caller must have the capability! | |
|
7194
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7172640: C2: instrinsic implementations in LibraryCallKit should use argument() instead of pop()
twisti
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6894
diff
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|
3117 |
|
beebba0acc11
7172640: C2: instrinsic implementations in LibraryCallKit should use argument() instead of pop()
twisti
parents:
6894
diff
changeset
|
3118 null_check_receiver(); // null-check, then ignore |
|
beebba0acc11
7172640: C2: instrinsic implementations in LibraryCallKit should use argument() instead of pop()
twisti
parents:
6894
diff
changeset
|
3119 Node* cls = null_check(argument(1)); |
| 0 | 3120 if (stopped()) return true; |
| 3121 | |
|
7194
beebba0acc11
7172640: C2: instrinsic implementations in LibraryCallKit should use argument() instead of pop()
twisti
parents:
6894
diff
changeset
|
3122 Node* kls = load_klass_from_mirror(cls, false, NULL, 0); |
|
beebba0acc11
7172640: C2: instrinsic implementations in LibraryCallKit should use argument() instead of pop()
twisti
parents:
6894
diff
changeset
|
3123 kls = null_check(kls); |
| 0 | 3124 if (stopped()) return true; // argument was like int.class |
| 3125 | |
| 12078 | 3126 Node* test = NULL; |
| 3127 if (LibraryCallKit::klass_needs_init_guard(kls)) { | |
| 3128 // Note: The argument might still be an illegal value like | |
| 3129 // Serializable.class or Object[].class. The runtime will handle it. | |
| 3130 // But we must make an explicit check for initialization. | |
| 3131 Node* insp = basic_plus_adr(kls, in_bytes(InstanceKlass::init_state_offset())); | |
| 3132 // Use T_BOOLEAN for InstanceKlass::_init_state so the compiler | |
| 3133 // can generate code to load it as unsigned byte. | |
|
14429
2113136690bc
8024921: PPC64 (part 113): Extend Load and Store nodes to know about memory ordering
goetz
parents:
13019
diff
changeset
|
3134 Node* inst = make_load(NULL, insp, TypeInt::UBYTE, T_BOOLEAN, MemNode::unordered); |
| 12078 | 3135 Node* bits = intcon(InstanceKlass::fully_initialized); |
| 3136 test = _gvn.transform(new (C) SubINode(inst, bits)); | |
| 3137 // The 'test' is non-zero if we need to take a slow path. | |
| 3138 } | |
| 0 | 3139 |
| 3140 Node* obj = new_instance(kls, test); | |
|
7194
beebba0acc11
7172640: C2: instrinsic implementations in LibraryCallKit should use argument() instead of pop()
twisti
parents:
6894
diff
changeset
|
3141 set_result(obj); |
| 0 | 3142 return true; |
| 3143 } | |
| 3144 | |
|
6006
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
5934
diff
changeset
|
3145 #ifdef TRACE_HAVE_INTRINSICS |
|
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
5934
diff
changeset
|
3146 /* |
|
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
5934
diff
changeset
|
3147 * oop -> myklass |
|
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
5934
diff
changeset
|
3148 * myklass->trace_id |= USED |
|
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
5934
diff
changeset
|
3149 * return myklass->trace_id & ~0x3 |
|
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
5934
diff
changeset
|
3150 */ |
|
0105f367a14c
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rbackman
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5934
diff
changeset
|
3151 bool LibraryCallKit::inline_native_classID() { |
|
7194
beebba0acc11
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twisti
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6894
diff
changeset
|
3152 null_check_receiver(); // null-check, then ignore |
|
beebba0acc11
7172640: C2: instrinsic implementations in LibraryCallKit should use argument() instead of pop()
twisti
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6894
diff
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|
3153 Node* cls = null_check(argument(1), T_OBJECT); |
|
beebba0acc11
7172640: C2: instrinsic implementations in LibraryCallKit should use argument() instead of pop()
twisti
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6894
diff
changeset
|
3154 Node* kls = load_klass_from_mirror(cls, false, NULL, 0); |
|
beebba0acc11
7172640: C2: instrinsic implementations in LibraryCallKit should use argument() instead of pop()
twisti
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6894
diff
changeset
|
3155 kls = null_check(kls, T_OBJECT); |
|
6006
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
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5934
diff
changeset
|
3156 ByteSize offset = TRACE_ID_OFFSET; |
|
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
parents:
5934
diff
changeset
|
3157 Node* insp = basic_plus_adr(kls, in_bytes(offset)); |
|
14429
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8024921: PPC64 (part 113): Extend Load and Store nodes to know about memory ordering
goetz
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13019
diff
changeset
|
3158 Node* tvalue = make_load(NULL, insp, TypeLong::LONG, T_LONG, MemNode::unordered); |
|
6006
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
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changeset
|
3159 Node* bits = longcon(~0x03l); // ignore bit 0 & 1 |
|
6804
e626685e9f6c
7193318: C2: remove number of inputs requirement from Node's new operator
kvn
parents:
6795
diff
changeset
|
3160 Node* andl = _gvn.transform(new (C) AndLNode(tvalue, bits)); |
|
6006
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
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diff
changeset
|
3161 Node* clsused = longcon(0x01l); // set the class bit |
|
6804
e626685e9f6c
7193318: C2: remove number of inputs requirement from Node's new operator
kvn
parents:
6795
diff
changeset
|
3162 Node* orl = _gvn.transform(new (C) OrLNode(tvalue, clsused)); |
|
6006
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
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|
3163 |
|
0105f367a14c
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diff
changeset
|
3164 const TypePtr *adr_type = _gvn.type(insp)->isa_ptr(); |
|
14429
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13019
diff
changeset
|
3165 store_to_memory(control(), insp, orl, T_LONG, adr_type, MemNode::unordered); |
|
7194
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twisti
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6894
diff
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|
3166 set_result(andl); |
|
6006
0105f367a14c
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rbackman
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diff
changeset
|
3167 return true; |
|
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
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5934
diff
changeset
|
3168 } |
|
0105f367a14c
7160570: Intrinsification support for tracing framework
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5934
diff
changeset
|
3169 |
|
0105f367a14c
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|
3170 bool LibraryCallKit::inline_native_threadID() { |
|
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
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diff
changeset
|
3171 Node* tls_ptr = NULL; |
|
0105f367a14c
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rbackman
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5934
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changeset
|
3172 Node* cur_thr = generate_current_thread(tls_ptr); |
|
0105f367a14c
7160570: Intrinsification support for tracing framework
rbackman
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|
3173 Node* p = basic_plus_adr(top()/*!oop*/, tls_ptr, in_bytes(JavaThread::osthread_offset())); |
|
14429
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8024921: PPC64 (part 113): Extend Load and Store nodes to know about memory ordering
goetz
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13019
diff
changeset
|
3174 Node* osthread = make_load(NULL, p, TypeRawPtr::NOTNULL, T_ADDRESS, MemNode::unordered); |
|
6006
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5934
diff
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|
3175 p = basic_plus_adr(top()/*!oop*/, osthread, in_bytes(OSThread::thread_id_offset())); |
|
0105f367a14c
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rbackman
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|
3176 |
|
0105f367a14c
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5934
diff
changeset
|
3177 Node* threadid = NULL; |
|
0105f367a14c
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|
3178 size_t thread_id_size = OSThread::thread_id_size(); |
|
0105f367a14c
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5934
diff
changeset
|
3179 if (thread_id_size == (size_t) BytesPerLong) { |
|
14429
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8024921: PPC64 (part 113): Extend Load and Store nodes to know about memory ordering
goetz
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13019
diff
changeset
|
3180 threadid = ConvL2I(make_load(control(), p, TypeLong::LONG, T_LONG, MemNode::unordered)); |
|
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|
3181 } else if (thread_id_size == (size_t) BytesPerInt) { |
|
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3182 threadid = make_load(control(), p, TypeInt::INT, T_INT, MemNode::unordered); |
|
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|
3183 } else { |
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|
3184 ShouldNotReachHere(); |
|
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|
3185 } |
|
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|
3186 set_result(threadid); |
|
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|
3187 return true; |
|
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|
3188 } |
|
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|
3189 #endif |
|
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3190 |
| 0 | 3191 //------------------------inline_native_time_funcs-------------- |
| 3192 // inline code for System.currentTimeMillis() and System.nanoTime() | |
| 3193 // these have the same type and signature | |
|
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|
3194 bool LibraryCallKit::inline_native_time_funcs(address funcAddr, const char* funcName) { |
|
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|
3195 const TypeFunc* tf = OptoRuntime::void_long_Type(); |
| 0 | 3196 const TypePtr* no_memory_effects = NULL; |
| 3197 Node* time = make_runtime_call(RC_LEAF, tf, funcAddr, funcName, no_memory_effects); | |
|
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3198 Node* value = _gvn.transform(new (C) ProjNode(time, TypeFunc::Parms+0)); |
| 0 | 3199 #ifdef ASSERT |
|
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|
3200 Node* value_top = _gvn.transform(new (C) ProjNode(time, TypeFunc::Parms+1)); |
| 0 | 3201 assert(value_top == top(), "second value must be top"); |
| 3202 #endif | |
|
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|
3203 set_result(value); |
| 0 | 3204 return true; |
| 3205 } | |
| 3206 | |
| 3207 //------------------------inline_native_currentThread------------------ | |
| 3208 bool LibraryCallKit::inline_native_currentThread() { | |
| 3209 Node* junk = NULL; | |
|
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|
3210 set_result(generate_current_thread(junk)); |
| 0 | 3211 return true; |
| 3212 } | |
| 3213 | |
| 3214 //------------------------inline_native_isInterrupted------------------ | |
|
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|
3215 // private native boolean java.lang.Thread.isInterrupted(boolean ClearInterrupted); |
| 0 | 3216 bool LibraryCallKit::inline_native_isInterrupted() { |
| 3217 // Add a fast path to t.isInterrupted(clear_int): | |
|
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3218 // (t == Thread.current() && |
|
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|
3219 // (!TLS._osthread._interrupted || WINDOWS_ONLY(false) NOT_WINDOWS(!clear_int))) |
| 0 | 3220 // ? TLS._osthread._interrupted : /*slow path:*/ t.isInterrupted(clear_int) |
| 3221 // So, in the common case that the interrupt bit is false, | |
| 3222 // we avoid making a call into the VM. Even if the interrupt bit | |
| 3223 // is true, if the clear_int argument is false, we avoid the VM call. | |
| 3224 // However, if the receiver is not currentThread, we must call the VM, | |
| 3225 // because there must be some locking done around the operation. | |
| 3226 | |
| 3227 // We only go to the fast case code if we pass two guards. | |
| 3228 // Paths which do not pass are accumulated in the slow_region. | |
|
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3229 |
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|
3230 enum { |
|
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3231 no_int_result_path = 1, // t == Thread.current() && !TLS._osthread._interrupted |
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3232 no_clear_result_path = 2, // t == Thread.current() && TLS._osthread._interrupted && !clear_int |
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|
3233 slow_result_path = 3, // slow path: t.isInterrupted(clear_int) |
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|
3234 PATH_LIMIT |
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|
3235 }; |
|
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|
3236 |
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|
3237 // Ensure that it's not possible to move the load of TLS._osthread._interrupted flag |
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|
3238 // out of the function. |
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|
3239 insert_mem_bar(Op_MemBarCPUOrder); |
|
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3240 |
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|
3241 RegionNode* result_rgn = new (C) RegionNode(PATH_LIMIT); |
|
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|
3242 PhiNode* result_val = new (C) PhiNode(result_rgn, TypeInt::BOOL); |
|
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3243 |
|
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|
3244 RegionNode* slow_region = new (C) RegionNode(1); |
| 0 | 3245 record_for_igvn(slow_region); |
| 3246 | |
| 3247 // (a) Receiving thread must be the current thread. | |
| 3248 Node* rec_thr = argument(0); | |
| 3249 Node* tls_ptr = NULL; | |
| 3250 Node* cur_thr = generate_current_thread(tls_ptr); | |
|
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|
3251 Node* cmp_thr = _gvn.transform(new (C) CmpPNode(cur_thr, rec_thr)); |
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3252 Node* bol_thr = _gvn.transform(new (C) BoolNode(cmp_thr, BoolTest::ne)); |
| 0 | 3253 |
|
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|
3254 generate_slow_guard(bol_thr, slow_region); |
| 0 | 3255 |
| 3256 // (b) Interrupt bit on TLS must be false. | |
| 3257 Node* p = basic_plus_adr(top()/*!oop*/, tls_ptr, in_bytes(JavaThread::osthread_offset())); | |
|
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|
3258 Node* osthread = make_load(NULL, p, TypeRawPtr::NOTNULL, T_ADDRESS, MemNode::unordered); |
| 0 | 3259 p = basic_plus_adr(top()/*!oop*/, osthread, in_bytes(OSThread::interrupted_offset())); |
|
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|
3260 |
|
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|
3261 // Set the control input on the field _interrupted read to prevent it floating up. |
|
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|
3262 Node* int_bit = make_load(control(), p, TypeInt::BOOL, T_INT, MemNode::unordered); |
|
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|
3263 Node* cmp_bit = _gvn.transform(new (C) CmpINode(int_bit, intcon(0))); |
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|
3264 Node* bol_bit = _gvn.transform(new (C) BoolNode(cmp_bit, BoolTest::ne)); |
| 0 | 3265 |
| 3266 IfNode* iff_bit = create_and_map_if(control(), bol_bit, PROB_UNLIKELY_MAG(3), COUNT_UNKNOWN); | |
| 3267 | |
| 3268 // First fast path: if (!TLS._interrupted) return false; | |
|
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|
3269 Node* false_bit = _gvn.transform(new (C) IfFalseNode(iff_bit)); |
| 0 | 3270 result_rgn->init_req(no_int_result_path, false_bit); |
| 3271 result_val->init_req(no_int_result_path, intcon(0)); | |
| 3272 | |
| 3273 // drop through to next case | |
|
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|
3274 set_control( _gvn.transform(new (C) IfTrueNode(iff_bit))); |
| 0 | 3275 |
|
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|
3276 #ifndef TARGET_OS_FAMILY_windows |
| 0 | 3277 // (c) Or, if interrupt bit is set and clear_int is false, use 2nd fast path. |
| 3278 Node* clr_arg = argument(1); | |
|
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|
3279 Node* cmp_arg = _gvn.transform(new (C) CmpINode(clr_arg, intcon(0))); |
|
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|
3280 Node* bol_arg = _gvn.transform(new (C) BoolNode(cmp_arg, BoolTest::ne)); |
| 0 | 3281 IfNode* iff_arg = create_and_map_if(control(), bol_arg, PROB_FAIR, COUNT_UNKNOWN); |
| 3282 | |
| 3283 // Second fast path: ... else if (!clear_int) return true; | |
|
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|
3284 Node* false_arg = _gvn.transform(new (C) IfFalseNode(iff_arg)); |
| 0 | 3285 result_rgn->init_req(no_clear_result_path, false_arg); |
| 3286 result_val->init_req(no_clear_result_path, intcon(1)); | |
| 3287 | |
| 3288 // drop through to next case | |
|
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|
3289 set_control( _gvn.transform(new (C) IfTrueNode(iff_arg))); |
|
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|
3290 #else |
|
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|
3291 // To return true on Windows you must read the _interrupted field |
|
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|
3292 // and check the the event state i.e. take the slow path. |
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|
3293 #endif // TARGET_OS_FAMILY_windows |
| 0 | 3294 |
| 3295 // (d) Otherwise, go to the slow path. | |
| 3296 slow_region->add_req(control()); | |
|
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|
3297 set_control( _gvn.transform(slow_region)); |
| 0 | 3298 |
| 3299 if (stopped()) { | |
| 3300 // There is no slow path. | |
| 3301 result_rgn->init_req(slow_result_path, top()); | |
| 3302 result_val->init_req(slow_result_path, top()); | |
| 3303 } else { | |
| 3304 // non-virtual because it is a private non-static | |
| 3305 CallJavaNode* slow_call = generate_method_call(vmIntrinsics::_isInterrupted); | |
| 3306 | |
| 3307 Node* slow_val = set_results_for_java_call(slow_call); | |
| 3308 // this->control() comes from set_results_for_java_call | |
| 3309 | |
| 3310 Node* fast_io = slow_call->in(TypeFunc::I_O); | |
| 3311 Node* fast_mem = slow_call->in(TypeFunc::Memory); | |
|
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|
3312 |
| 0 | 3313 // These two phis are pre-filled with copies of of the fast IO and Memory |
|
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|
3314 PhiNode* result_mem = PhiNode::make(result_rgn, fast_mem, Type::MEMORY, TypePtr::BOTTOM); |
|
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|
3315 PhiNode* result_io = PhiNode::make(result_rgn, fast_io, Type::ABIO); |
| 0 | 3316 |
| 3317 result_rgn->init_req(slow_result_path, control()); | |
|
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|
3318 result_io ->init_req(slow_result_path, i_o()); |
|
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|
3319 result_mem->init_req(slow_result_path, reset_memory()); |
| 0 | 3320 result_val->init_req(slow_result_path, slow_val); |
| 3321 | |
|
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|
3322 set_all_memory(_gvn.transform(result_mem)); |
|
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|
3323 set_i_o( _gvn.transform(result_io)); |
| 0 | 3324 } |
| 3325 | |
| 3326 C->set_has_split_ifs(true); // Has chance for split-if optimization | |
|
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|
3327 set_result(result_rgn, result_val); |
| 0 | 3328 return true; |
| 3329 } | |
| 3330 | |
| 3331 //---------------------------load_mirror_from_klass---------------------------- | |
| 3332 // Given a klass oop, load its java mirror (a java.lang.Class oop). | |
| 3333 Node* LibraryCallKit::load_mirror_from_klass(Node* klass) { | |
|
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|
3334 Node* p = basic_plus_adr(klass, in_bytes(Klass::java_mirror_offset())); |
|
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|
3335 return make_load(NULL, p, TypeInstPtr::MIRROR, T_OBJECT, MemNode::unordered); |
| 0 | 3336 } |
| 3337 | |
| 3338 //-----------------------load_klass_from_mirror_common------------------------- | |
| 3339 // Given a java mirror (a java.lang.Class oop), load its corresponding klass oop. | |
| 3340 // Test the klass oop for null (signifying a primitive Class like Integer.TYPE), | |
| 3341 // and branch to the given path on the region. | |
| 3342 // If never_see_null, take an uncommon trap on null, so we can optimistically | |
| 3343 // compile for the non-null case. | |
| 3344 // If the region is NULL, force never_see_null = true. | |
| 3345 Node* LibraryCallKit::load_klass_from_mirror_common(Node* mirror, | |
| 3346 bool never_see_null, | |
| 3347 RegionNode* region, | |
| 3348 int null_path, | |
| 3349 int offset) { | |
| 3350 if (region == NULL) never_see_null = true; | |
| 3351 Node* p = basic_plus_adr(mirror, offset); | |
| 3352 const TypeKlassPtr* kls_type = TypeKlassPtr::OBJECT_OR_NULL; | |
|
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|
3353 Node* kls = _gvn.transform( LoadKlassNode::make(_gvn, immutable_memory(), p, TypeRawPtr::BOTTOM, kls_type)); |
| 0 | 3354 Node* null_ctl = top(); |
| 3355 kls = null_check_oop(kls, &null_ctl, never_see_null); | |
| 3356 if (region != NULL) { | |
| 3357 // Set region->in(null_path) if the mirror is a primitive (e.g, int.class). | |
| 3358 region->init_req(null_path, null_ctl); | |
| 3359 } else { | |
| 3360 assert(null_ctl == top(), "no loose ends"); | |
| 3361 } | |
| 3362 return kls; | |
| 3363 } | |
| 3364 | |
| 3365 //--------------------(inline_native_Class_query helpers)--------------------- | |
| 3366 // Use this for JVM_ACC_INTERFACE, JVM_ACC_IS_CLONEABLE, JVM_ACC_HAS_FINALIZER. | |
| 3367 // Fall through if (mods & mask) == bits, take the guard otherwise. | |
| 3368 Node* LibraryCallKit::generate_access_flags_guard(Node* kls, int modifier_mask, int modifier_bits, RegionNode* region) { | |
| 3369 // Branch around if the given klass has the given modifier bit set. | |
| 3370 // Like generate_guard, adds a new path onto the region. | |
|
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|
3371 Node* modp = basic_plus_adr(kls, in_bytes(Klass::access_flags_offset())); |
|
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|
3372 Node* mods = make_load(NULL, modp, TypeInt::INT, T_INT, MemNode::unordered); |
| 0 | 3373 Node* mask = intcon(modifier_mask); |
| 3374 Node* bits = intcon(modifier_bits); | |
|
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|
3375 Node* mbit = _gvn.transform(new (C) AndINode(mods, mask)); |
|
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|
3376 Node* cmp = _gvn.transform(new (C) CmpINode(mbit, bits)); |
|
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|
3377 Node* bol = _gvn.transform(new (C) BoolNode(cmp, BoolTest::ne)); |
| 0 | 3378 return generate_fair_guard(bol, region); |
| 3379 } | |
| 3380 Node* LibraryCallKit::generate_interface_guard(Node* kls, RegionNode* region) { | |
| 3381 return generate_access_flags_guard(kls, JVM_ACC_INTERFACE, 0, region); | |
| 3382 } | |
| 3383 | |
| 3384 //-------------------------inline_native_Class_query------------------- | |
| 3385 bool LibraryCallKit::inline_native_Class_query(vmIntrinsics::ID id) { | |
| 3386 const Type* return_type = TypeInt::BOOL; | |
| 3387 Node* prim_return_value = top(); // what happens if it's a primitive class? | |
| 3388 bool never_see_null = !too_many_traps(Deoptimization::Reason_null_check); | |
| 3389 bool expect_prim = false; // most of these guys expect to work on refs | |
| 3390 | |
| 3391 enum { _normal_path = 1, _prim_path = 2, PATH_LIMIT }; | |
| 3392 | |
|
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|
3393 Node* mirror = argument(0); |
|
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|
3394 Node* obj = top(); |
|
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diff
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|
3395 |
| 0 | 3396 switch (id) { |
| 3397 case vmIntrinsics::_isInstance: | |
| 3398 // nothing is an instance of a primitive type | |
| 3399 prim_return_value = intcon(0); | |
|
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diff
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|
3400 obj = argument(1); |
| 0 | 3401 break; |
| 3402 case vmIntrinsics::_getModifiers: | |
| 3403 prim_return_value = intcon(JVM_ACC_ABSTRACT | JVM_ACC_FINAL | JVM_ACC_PUBLIC); | |
| 3404 assert(is_power_of_2((int)JVM_ACC_WRITTEN_FLAGS+1), "change next line"); | |
| 3405 return_type = TypeInt::make(0, JVM_ACC_WRITTEN_FLAGS, Type::WidenMin); | |
| 3406 break; | |
| 3407 case vmIntrinsics::_isInterface: | |
| 3408 prim_return_value = intcon(0); | |
| 3409 break; | |
| 3410 case vmIntrinsics::_isArray: | |
| 3411 prim_return_value = intcon(0); | |
| 3412 expect_prim = true; // cf. ObjectStreamClass.getClassSignature | |
| 3413 break; | |
| 3414 case vmIntrinsics::_isPrimitive: | |
| 3415 prim_return_value = intcon(1); | |
| 3416 expect_prim = true; // obviously | |
| 3417 break; | |
| 3418 case vmIntrinsics::_getSuperclass: | |
| 3419 prim_return_value = null(); | |
| 3420 return_type = TypeInstPtr::MIRROR->cast_to_ptr_type(TypePtr::BotPTR); | |
| 3421 break; | |
| 3422 case vmIntrinsics::_getComponentType: | |
| 3423 prim_return_value = null(); | |
| 3424 return_type = TypeInstPtr::MIRROR->cast_to_ptr_type(TypePtr::BotPTR); | |
| 3425 break; | |
| 3426 case vmIntrinsics::_getClassAccessFlags: | |
| 3427 prim_return_value = intcon(JVM_ACC_ABSTRACT | JVM_ACC_FINAL | JVM_ACC_PUBLIC); | |
| 3428 return_type = TypeInt::INT; // not bool! 6297094 | |
| 3429 break; | |
| 3430 default: | |
|
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|
3431 fatal_unexpected_iid(id); |
|
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diff
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|
3432 break; |
| 0 | 3433 } |
| 3434 | |
| 3435 const TypeInstPtr* mirror_con = _gvn.type(mirror)->isa_instptr(); | |
| 3436 if (mirror_con == NULL) return false; // cannot happen? | |
| 3437 | |
| 3438 #ifndef PRODUCT | |
| 12295 | 3439 if (C->print_intrinsics() || C->print_inlining()) { |
| 0 | 3440 ciType* k = mirror_con->java_mirror_type(); |
| 3441 if (k) { | |
| 3442 tty->print("Inlining %s on constant Class ", vmIntrinsics::name_at(intrinsic_id())); | |
| 3443 k->print_name(); | |
| 3444 tty->cr(); | |
| 3445 } | |
| 3446 } | |
| 3447 #endif | |
| 3448 | |
| 3449 // Null-check the mirror, and the mirror's klass ptr (in case it is a primitive). | |
|
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|
3450 RegionNode* region = new (C) RegionNode(PATH_LIMIT); |
| 0 | 3451 record_for_igvn(region); |
|
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diff
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|
3452 PhiNode* phi = new (C) PhiNode(region, return_type); |
| 0 | 3453 |
| 3454 // The mirror will never be null of Reflection.getClassAccessFlags, however | |
| 3455 // it may be null for Class.isInstance or Class.getModifiers. Throw a NPE | |
| 3456 // if it is. See bug 4774291. | |
| 3457 | |
| 3458 // For Reflection.getClassAccessFlags(), the null check occurs in | |
| 3459 // the wrong place; see inline_unsafe_access(), above, for a similar | |
| 3460 // situation. | |
|
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diff
changeset
|
3461 mirror = null_check(mirror); |
| 0 | 3462 // If mirror or obj is dead, only null-path is taken. |
| 3463 if (stopped()) return true; | |
| 3464 | |
| 3465 if (expect_prim) never_see_null = false; // expect nulls (meaning prims) | |
| 3466 | |
| 3467 // Now load the mirror's klass metaobject, and null-check it. | |
| 3468 // Side-effects region with the control path if the klass is null. | |
|
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diff
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|
3469 Node* kls = load_klass_from_mirror(mirror, never_see_null, region, _prim_path); |
| 0 | 3470 // If kls is null, we have a primitive mirror. |
| 3471 phi->init_req(_prim_path, prim_return_value); | |
|
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|
3472 if (stopped()) { set_result(region, phi); return true; } |
| 12966 | 3473 bool safe_for_replace = (region->in(_prim_path) == top()); |
| 0 | 3474 |
| 3475 Node* p; // handy temp | |
| 3476 Node* null_ctl; | |
| 3477 | |
| 3478 // Now that we have the non-null klass, we can perform the real query. | |
| 3479 // For constant classes, the query will constant-fold in LoadNode::Value. | |
| 3480 Node* query_value = top(); | |
| 3481 switch (id) { | |
| 3482 case vmIntrinsics::_isInstance: | |
| 3483 // nothing is an instance of a primitive type | |
| 12966 | 3484 query_value = gen_instanceof(obj, kls, safe_for_replace); |
| 0 | 3485 break; |
| 3486 | |
| 3487 case vmIntrinsics::_getModifiers: | |
|
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|
3488 p = basic_plus_adr(kls, in_bytes(Klass::modifier_flags_offset())); |
|
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|
3489 query_value = make_load(NULL, p, TypeInt::INT, T_INT, MemNode::unordered); |
| 0 | 3490 break; |
| 3491 | |
| 3492 case vmIntrinsics::_isInterface: | |
| 3493 // (To verify this code sequence, check the asserts in JVM_IsInterface.) | |
| 3494 if (generate_interface_guard(kls, region) != NULL) | |
| 3495 // A guard was added. If the guard is taken, it was an interface. | |
| 3496 phi->add_req(intcon(1)); | |
| 3497 // If we fall through, it's a plain class. | |
| 3498 query_value = intcon(0); | |
| 3499 break; | |
| 3500 | |
| 3501 case vmIntrinsics::_isArray: | |
| 3502 // (To verify this code sequence, check the asserts in JVM_IsArrayClass.) | |
| 3503 if (generate_array_guard(kls, region) != NULL) | |
| 3504 // A guard was added. If the guard is taken, it was an array. | |
| 3505 phi->add_req(intcon(1)); | |
| 3506 // If we fall through, it's a plain class. | |
| 3507 query_value = intcon(0); | |
| 3508 break; | |
| 3509 | |
| 3510 case vmIntrinsics::_isPrimitive: | |
| 3511 query_value = intcon(0); // "normal" path produces false | |
| 3512 break; | |
| 3513 | |
| 3514 case vmIntrinsics::_getSuperclass: | |
| 3515 // The rules here are somewhat unfortunate, but we can still do better | |
| 3516 // with random logic than with a JNI call. | |
| 3517 // Interfaces store null or Object as _super, but must report null. | |
| 3518 // Arrays store an intermediate super as _super, but must report Object. | |
| 3519 // Other types can report the actual _super. | |
| 3520 // (To verify this code sequence, check the asserts in JVM_IsInterface.) | |
| 3521 if (generate_interface_guard(kls, region) != NULL) | |
| 3522 // A guard was added. If the guard is taken, it was an interface. | |
| 3523 phi->add_req(null()); | |
| 3524 if (generate_array_guard(kls, region) != NULL) | |
| 3525 // A guard was added. If the guard is taken, it was an array. | |
| 3526 phi->add_req(makecon(TypeInstPtr::make(env()->Object_klass()->java_mirror()))); | |
| 3527 // If we fall through, it's a plain class. Get its _super. | |
|
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3961
diff
changeset
|
3528 p = basic_plus_adr(kls, in_bytes(Klass::super_offset())); |
|
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diff
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|
3529 kls = _gvn.transform( LoadKlassNode::make(_gvn, immutable_memory(), p, TypeRawPtr::BOTTOM, TypeKlassPtr::OBJECT_OR_NULL)); |
| 0 | 3530 null_ctl = top(); |
| 3531 kls = null_check_oop(kls, &null_ctl); | |
| 3532 if (null_ctl != top()) { | |
| 3533 // If the guard is taken, Object.superClass is null (both klass and mirror). | |
| 3534 region->add_req(null_ctl); | |
| 3535 phi ->add_req(null()); | |
| 3536 } | |
| 3537 if (!stopped()) { | |
| 3538 query_value = load_mirror_from_klass(kls); | |
| 3539 } | |
| 3540 break; | |
| 3541 | |
| 3542 case vmIntrinsics::_getComponentType: | |
| 3543 if (generate_array_guard(kls, region) != NULL) { | |
| 3544 // Be sure to pin the oop load to the guard edge just created: | |
| 3545 Node* is_array_ctrl = region->in(region->req()-1); | |
|
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8000213: NPG: Should have renamed arrayKlass and typeArrayKlass
coleenp
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6804
diff
changeset
|
3546 Node* cma = basic_plus_adr(kls, in_bytes(ArrayKlass::component_mirror_offset())); |
|
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diff
changeset
|
3547 Node* cmo = make_load(is_array_ctrl, cma, TypeInstPtr::MIRROR, T_OBJECT, MemNode::unordered); |
| 0 | 3548 phi->add_req(cmo); |
| 3549 } | |
| 3550 query_value = null(); // non-array case is null | |
| 3551 break; | |
| 3552 | |
| 3553 case vmIntrinsics::_getClassAccessFlags: | |
|
4762
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stefank
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3961
diff
changeset
|
3554 p = basic_plus_adr(kls, in_bytes(Klass::access_flags_offset())); |
|
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8024921: PPC64 (part 113): Extend Load and Store nodes to know about memory ordering
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13019
diff
changeset
|
3555 query_value = make_load(NULL, p, TypeInt::INT, T_INT, MemNode::unordered); |
| 0 | 3556 break; |
| 3557 | |
| 3558 default: | |
|
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diff
changeset
|
3559 fatal_unexpected_iid(id); |
|
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6894
diff
changeset
|
3560 break; |
| 0 | 3561 } |
| 3562 | |
| 3563 // Fall-through is the normal case of a query to a real class. | |
| 3564 phi->init_req(1, query_value); | |
| 3565 region->init_req(1, control()); | |
| 3566 | |
| 3567 C->set_has_split_ifs(true); // Has chance for split-if optimization | |
|
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diff
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|
3568 set_result(region, phi); |
| 0 | 3569 return true; |
| 3570 } | |
| 3571 | |
| 3572 //--------------------------inline_native_subtype_check------------------------ | |
| 3573 // This intrinsic takes the JNI calls out of the heart of | |
| 3574 // UnsafeFieldAccessorImpl.set, which improves Field.set, readObject, etc. | |
| 3575 bool LibraryCallKit::inline_native_subtype_check() { | |
| 3576 // Pull both arguments off the stack. | |
| 3577 Node* args[2]; // two java.lang.Class mirrors: superc, subc | |
| 3578 args[0] = argument(0); | |
| 3579 args[1] = argument(1); | |
| 3580 Node* klasses[2]; // corresponding Klasses: superk, subk | |
| 3581 klasses[0] = klasses[1] = top(); | |
| 3582 | |
| 3583 enum { | |
| 3584 // A full decision tree on {superc is prim, subc is prim}: | |
| 3585 _prim_0_path = 1, // {P,N} => false | |
| 3586 // {P,P} & superc!=subc => false | |
| 3587 _prim_same_path, // {P,P} & superc==subc => true | |
| 3588 _prim_1_path, // {N,P} => false | |
| 3589 _ref_subtype_path, // {N,N} & subtype check wins => true | |
| 3590 _both_ref_path, // {N,N} & subtype check loses => false | |
| 3591 PATH_LIMIT | |
| 3592 }; | |
| 3593 | |
|
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7193318: C2: remove number of inputs requirement from Node's new operator
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6795
diff
changeset
|
3594 RegionNode* region = new (C) RegionNode(PATH_LIMIT); |
|
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6795
diff
changeset
|
3595 Node* phi = new (C) PhiNode(region, TypeInt::BOOL); |
| 0 | 3596 record_for_igvn(region); |
| 3597 | |
| 3598 const TypePtr* adr_type = TypeRawPtr::BOTTOM; // memory type of loads | |
| 3599 const TypeKlassPtr* kls_type = TypeKlassPtr::OBJECT_OR_NULL; | |
| 3600 int class_klass_offset = java_lang_Class::klass_offset_in_bytes(); | |
| 3601 | |
| 3602 // First null-check both mirrors and load each mirror's klass metaobject. | |
| 3603 int which_arg; | |
| 3604 for (which_arg = 0; which_arg <= 1; which_arg++) { | |
| 3605 Node* arg = args[which_arg]; | |
|
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6894
diff
changeset
|
3606 arg = null_check(arg); |
| 0 | 3607 if (stopped()) break; |
|
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ad5dd04754ee
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7200
diff
changeset
|
3608 args[which_arg] = arg; |
| 0 | 3609 |
| 3610 Node* p = basic_plus_adr(arg, class_klass_offset); | |
|
164
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6703890: Compressed Oops: add LoadNKlass node to generate narrow oops (32-bits) compare instructions
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163
diff
changeset
|
3611 Node* kls = LoadKlassNode::make(_gvn, immutable_memory(), p, adr_type, kls_type); |
| 0 | 3612 klasses[which_arg] = _gvn.transform(kls); |
| 3613 } | |
| 3614 | |
| 3615 // Having loaded both klasses, test each for null. | |
| 3616 bool never_see_null = !too_many_traps(Deoptimization::Reason_null_check); | |
| 3617 for (which_arg = 0; which_arg <= 1; which_arg++) { | |
| 3618 Node* kls = klasses[which_arg]; | |
| 3619 Node* null_ctl = top(); | |
| 3620 kls = null_check_oop(kls, &null_ctl, never_see_null); | |
| 3621 int prim_path = (which_arg == 0 ? _prim_0_path : _prim_1_path); | |
| 3622 region->init_req(prim_path, null_ctl); | |
| 3623 if (stopped()) break; | |
| 3624 klasses[which_arg] = kls; | |
| 3625 } | |
| 3626 | |
| 3627 if (!stopped()) { | |
| 3628 // now we have two reference types, in klasses[0..1] | |
| 3629 Node* subk = klasses[1]; // the argument to isAssignableFrom | |
| 3630 Node* superk = klasses[0]; // the receiver | |
| 3631 region->set_req(_both_ref_path, gen_subtype_check(subk, superk)); | |
| 3632 // now we have a successful reference subtype check | |
| 3633 region->set_req(_ref_subtype_path, control()); | |
| 3634 } | |
| 3635 | |
| 3636 // If both operands are primitive (both klasses null), then | |
| 3637 // we must return true when they are identical primitives. | |
| 3638 // It is convenient to test this after the first null klass check. | |
| 3639 set_control(region->in(_prim_0_path)); // go back to first null check | |
| 3640 if (!stopped()) { | |
| 3641 // Since superc is primitive, make a guard for the superc==subc case. | |
|
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|
3642 Node* cmp_eq = _gvn.transform(new (C) CmpPNode(args[0], args[1])); |
|
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|
3643 Node* bol_eq = _gvn.transform(new (C) BoolNode(cmp_eq, BoolTest::eq)); |
| 0 | 3644 generate_guard(bol_eq, region, PROB_FAIR); |
| 3645 if (region->req() == PATH_LIMIT+1) { | |
| 3646 // A guard was added. If the added guard is taken, superc==subc. | |
| 3647 region->swap_edges(PATH_LIMIT, _prim_same_path); | |
| 3648 region->del_req(PATH_LIMIT); | |
| 3649 } | |
| 3650 region->set_req(_prim_0_path, control()); // Not equal after all. | |
| 3651 } | |
| 3652 | |
| 3653 // these are the only paths that produce 'true': | |
| 3654 phi->set_req(_prim_same_path, intcon(1)); | |
| 3655 phi->set_req(_ref_subtype_path, intcon(1)); | |
| 3656 | |
| 3657 // pull together the cases: | |
| 3658 assert(region->req() == PATH_LIMIT, "sane region"); | |
| 3659 for (uint i = 1; i < region->req(); i++) { | |
| 3660 Node* ctl = region->in(i); | |
| 3661 if (ctl == NULL || ctl == top()) { | |
| 3662 region->set_req(i, top()); | |
| 3663 phi ->set_req(i, top()); | |
| 3664 } else if (phi->in(i) == NULL) { | |
| 3665 phi->set_req(i, intcon(0)); // all other paths produce 'false' | |
| 3666 } | |
| 3667 } | |
| 3668 | |
| 3669 set_control(_gvn.transform(region)); | |
|
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6894
diff
changeset
|
3670 set_result(_gvn.transform(phi)); |
| 0 | 3671 return true; |
| 3672 } | |
| 3673 | |
| 3674 //---------------------generate_array_guard_common------------------------ | |
| 3675 Node* LibraryCallKit::generate_array_guard_common(Node* kls, RegionNode* region, | |
| 3676 bool obj_array, bool not_array) { | |
| 3677 // If obj_array/non_array==false/false: | |
| 3678 // Branch around if the given klass is in fact an array (either obj or prim). | |
| 3679 // If obj_array/non_array==false/true: | |
| 3680 // Branch around if the given klass is not an array klass of any kind. | |
| 3681 // If obj_array/non_array==true/true: | |
| 3682 // Branch around if the kls is not an oop array (kls is int[], String, etc.) | |
| 3683 // If obj_array/non_array==true/false: | |
| 3684 // Branch around if the kls is an oop array (Object[] or subtype) | |
| 3685 // | |
| 3686 // Like generate_guard, adds a new path onto the region. | |
| 3687 jint layout_con = 0; | |
| 3688 Node* layout_val = get_layout_helper(kls, layout_con); | |
| 3689 if (layout_val == NULL) { | |
| 3690 bool query = (obj_array | |
| 3691 ? Klass::layout_helper_is_objArray(layout_con) | |
|
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6615
diff
changeset
|
3692 : Klass::layout_helper_is_array(layout_con)); |
| 0 | 3693 if (query == not_array) { |
| 3694 return NULL; // never a branch | |
| 3695 } else { // always a branch | |
| 3696 Node* always_branch = control(); | |
| 3697 if (region != NULL) | |
| 3698 region->add_req(always_branch); | |
| 3699 set_control(top()); | |
| 3700 return always_branch; | |
| 3701 } | |
| 3702 } | |
| 3703 // Now test the correct condition. | |
| 3704 jint nval = (obj_array | |
| 3705 ? ((jint)Klass::_lh_array_tag_type_value | |
| 3706 << Klass::_lh_array_tag_shift) | |
| 3707 : Klass::_lh_neutral_value); | |
|
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diff
changeset
|
3708 Node* cmp = _gvn.transform(new(C) CmpINode(layout_val, intcon(nval))); |
| 0 | 3709 BoolTest::mask btest = BoolTest::lt; // correct for testing is_[obj]array |
| 3710 // invert the test if we are looking for a non-array | |
| 3711 if (not_array) btest = BoolTest(btest).negate(); | |
|
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diff
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|
3712 Node* bol = _gvn.transform(new(C) BoolNode(cmp, btest)); |
| 0 | 3713 return generate_fair_guard(bol, region); |
| 3714 } | |
| 3715 | |
| 3716 | |
| 3717 //-----------------------inline_native_newArray-------------------------- | |
|
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|
3718 // private static native Object java.lang.reflect.newArray(Class<?> componentType, int length); |
| 0 | 3719 bool LibraryCallKit::inline_native_newArray() { |
| 3720 Node* mirror = argument(0); | |
| 3721 Node* count_val = argument(1); | |
| 3722 | |
|
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|
3723 mirror = null_check(mirror); |
| 163 | 3724 // If mirror or obj is dead, only null-path is taken. |
| 3725 if (stopped()) return true; | |
| 0 | 3726 |
| 3727 enum { _normal_path = 1, _slow_path = 2, PATH_LIMIT }; | |
|
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|
3728 RegionNode* result_reg = new(C) RegionNode(PATH_LIMIT); |
|
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|
3729 PhiNode* result_val = new(C) PhiNode(result_reg, |
|
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7193318: C2: remove number of inputs requirement from Node's new operator
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|
3730 TypeInstPtr::NOTNULL); |
|
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diff
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|
3731 PhiNode* result_io = new(C) PhiNode(result_reg, Type::ABIO); |
|
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7193318: C2: remove number of inputs requirement from Node's new operator
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|
3732 PhiNode* result_mem = new(C) PhiNode(result_reg, Type::MEMORY, |
|
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diff
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|
3733 TypePtr::BOTTOM); |
| 0 | 3734 |
| 3735 bool never_see_null = !too_many_traps(Deoptimization::Reason_null_check); | |
| 3736 Node* klass_node = load_array_klass_from_mirror(mirror, never_see_null, | |
| 3737 result_reg, _slow_path); | |
| 3738 Node* normal_ctl = control(); | |
| 3739 Node* no_array_ctl = result_reg->in(_slow_path); | |
| 3740 | |
| 3741 // Generate code for the slow case. We make a call to newArray(). | |
| 3742 set_control(no_array_ctl); | |
| 3743 if (!stopped()) { | |
| 3744 // Either the input type is void.class, or else the | |
| 3745 // array klass has not yet been cached. Either the | |
| 3746 // ensuing call will throw an exception, or else it | |
| 3747 // will cache the array klass for next time. | |
| 3748 PreserveJVMState pjvms(this); | |
| 3749 CallJavaNode* slow_call = generate_method_call_static(vmIntrinsics::_newArray); | |
| 3750 Node* slow_result = set_results_for_java_call(slow_call); | |
| 3751 // this->control() comes from set_results_for_java_call | |
| 3752 result_reg->set_req(_slow_path, control()); | |
| 3753 result_val->set_req(_slow_path, slow_result); | |
| 3754 result_io ->set_req(_slow_path, i_o()); | |
| 3755 result_mem->set_req(_slow_path, reset_memory()); | |
| 3756 } | |
| 3757 | |
| 3758 set_control(normal_ctl); | |
| 3759 if (!stopped()) { | |
| 3760 // Normal case: The array type has been cached in the java.lang.Class. | |
| 3761 // The following call works fine even if the array type is polymorphic. | |
| 3762 // It could be a dynamic mix of int[], boolean[], Object[], etc. | |
|
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|
3763 Node* obj = new_array(klass_node, count_val, 0); // no arguments to push |
| 0 | 3764 result_reg->init_req(_normal_path, control()); |
| 3765 result_val->init_req(_normal_path, obj); | |
| 3766 result_io ->init_req(_normal_path, i_o()); | |
| 3767 result_mem->init_req(_normal_path, reset_memory()); | |
| 3768 } | |
| 3769 | |
| 3770 // Return the combined state. | |
| 3771 set_i_o( _gvn.transform(result_io) ); | |
|
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|
3772 set_all_memory( _gvn.transform(result_mem)); |
|
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|
3773 |
| 0 | 3774 C->set_has_split_ifs(true); // Has chance for split-if optimization |
|
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|
3775 set_result(result_reg, result_val); |
| 0 | 3776 return true; |
| 3777 } | |
| 3778 | |
| 3779 //----------------------inline_native_getLength-------------------------- | |
|
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|
3780 // public static native int java.lang.reflect.Array.getLength(Object array); |
| 0 | 3781 bool LibraryCallKit::inline_native_getLength() { |
| 3782 if (too_many_traps(Deoptimization::Reason_intrinsic)) return false; | |
| 3783 | |
|
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|
3784 Node* array = null_check(argument(0)); |
| 0 | 3785 // If array is dead, only null-path is taken. |
| 3786 if (stopped()) return true; | |
| 3787 | |
| 3788 // Deoptimize if it is a non-array. | |
| 3789 Node* non_array = generate_non_array_guard(load_object_klass(array), NULL); | |
| 3790 | |
| 3791 if (non_array != NULL) { | |
| 3792 PreserveJVMState pjvms(this); | |
| 3793 set_control(non_array); | |
| 3794 uncommon_trap(Deoptimization::Reason_intrinsic, | |
| 3795 Deoptimization::Action_maybe_recompile); | |
| 3796 } | |
| 3797 | |
| 3798 // If control is dead, only non-array-path is taken. | |
| 3799 if (stopped()) return true; | |
| 3800 | |
| 3801 // The works fine even if the array type is polymorphic. | |
| 3802 // It could be a dynamic mix of int[], boolean[], Object[], etc. | |
|
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|
3803 Node* result = load_array_length(array); |
|
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|
3804 |
|
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|
3805 C->set_has_split_ifs(true); // Has chance for split-if optimization |
|
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|
3806 set_result(result); |
| 0 | 3807 return true; |
| 3808 } | |
| 3809 | |
| 3810 //------------------------inline_array_copyOf---------------------------- | |
|
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|
3811 // public static <T,U> T[] java.util.Arrays.copyOf( U[] original, int newLength, Class<? extends T[]> newType); |
|
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|
3812 // public static <T,U> T[] java.util.Arrays.copyOfRange(U[] original, int from, int to, Class<? extends T[]> newType); |
| 0 | 3813 bool LibraryCallKit::inline_array_copyOf(bool is_copyOfRange) { |
| 3814 if (too_many_traps(Deoptimization::Reason_intrinsic)) return false; | |
| 3815 | |
|
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|
3816 // Get the arguments. |
| 0 | 3817 Node* original = argument(0); |
| 3818 Node* start = is_copyOfRange? argument(1): intcon(0); | |
| 3819 Node* end = is_copyOfRange? argument(2): argument(1); | |
| 3820 Node* array_type_mirror = is_copyOfRange? argument(3): argument(2); | |
| 3821 | |
|
902
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diff
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|
3822 Node* newcopy; |
|
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|
3823 |
|
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diff
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|
3824 // Set the original stack and the reexecute bit for the interpreter to reexecute |
|
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diff
changeset
|
3825 // the bytecode that invokes Arrays.copyOf if deoptimization happens. |
|
902
fc2281ddce3c
6868269: CompileTheWorld assertion failure introduced by the reexecute bit implementation
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900
diff
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|
3826 { PreserveReexecuteState preexecs(this); |
|
fc2281ddce3c
6868269: CompileTheWorld assertion failure introduced by the reexecute bit implementation
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900
diff
changeset
|
3827 jvms()->set_should_reexecute(true); |
|
fc2281ddce3c
6868269: CompileTheWorld assertion failure introduced by the reexecute bit implementation
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900
diff
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|
3828 |
|
7194
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twisti
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diff
changeset
|
3829 array_type_mirror = null_check(array_type_mirror); |
|
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twisti
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|
3830 original = null_check(original); |
|
902
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900
diff
changeset
|
3831 |
|
fc2281ddce3c
6868269: CompileTheWorld assertion failure introduced by the reexecute bit implementation
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900
diff
changeset
|
3832 // Check if a null path was taken unconditionally. |
|
fc2281ddce3c
6868269: CompileTheWorld assertion failure introduced by the reexecute bit implementation
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900
diff
changeset
|
3833 if (stopped()) return true; |
|
fc2281ddce3c
6868269: CompileTheWorld assertion failure introduced by the reexecute bit implementation
cfang
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900
diff
changeset
|
3834 |
|
fc2281ddce3c
6868269: CompileTheWorld assertion failure introduced by the reexecute bit implementation
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900
diff
changeset
|
3835 Node* orig_length = load_array_length(original); |
|
fc2281ddce3c
6868269: CompileTheWorld assertion failure introduced by the reexecute bit implementation
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900
diff
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|
3836 |
|
7194
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twisti
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diff
changeset
|
3837 Node* klass_node = load_klass_from_mirror(array_type_mirror, false, NULL, 0); |
|
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|
3838 klass_node = null_check(klass_node); |
|
902
fc2281ddce3c
6868269: CompileTheWorld assertion failure introduced by the reexecute bit implementation
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parents:
900
diff
changeset
|
3839 |
|
6804
e626685e9f6c
7193318: C2: remove number of inputs requirement from Node's new operator
kvn
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6795
diff
changeset
|
3840 RegionNode* bailout = new (C) RegionNode(1); |
|
902
fc2281ddce3c
6868269: CompileTheWorld assertion failure introduced by the reexecute bit implementation
cfang
parents:
900
diff
changeset
|
3841 record_for_igvn(bailout); |
|
fc2281ddce3c
6868269: CompileTheWorld assertion failure introduced by the reexecute bit implementation
cfang
parents:
900
diff
changeset
|
3842 |
|
fc2281ddce3c
6868269: CompileTheWorld assertion failure introduced by the reexecute bit implementation
cfang
parents:
900
diff
changeset
|
3843 // Despite the generic type of Arrays.copyOf, the mirror might be int, int[], etc. |
|
fc2281ddce3c
6868269: CompileTheWorld assertion failure introduced by the reexecute bit implementation
cfang
parents:
900
diff
changeset
|
3844 // Bail out if that is so. |
|
fc2281ddce3c
6868269: CompileTheWorld assertion failure introduced by the reexecute bit implementation
cfang
parents:
900
diff
changeset
|
3845 Node* not_objArray = generate_non_objArray_guard(klass_node, bailout); |
|
fc2281ddce3c
6868269: CompileTheWorld assertion failure introduced by the reexecute bit implementation
cfang
parents:
900
diff
changeset
|
3846 if (not_objArray != NULL) { |
|
fc2281ddce3c
6868269: CompileTheWorld assertion failure introduced by the reexecute bit implementation
cfang
parents:
900
diff
changeset
|
3847 // Improve the klass node's type from the new optimistic assumption: |
|
fc2281ddce3c
6868269: CompileTheWorld assertion failure introduced by the reexecute bit implementation
cfang
parents:
900
diff
changeset
|
3848 ciKlass* ak = ciArrayKlass::make(env()->Object_klass()); |
|
fc2281ddce3c
6868269: CompileTheWorld assertion failure introduced by the reexecute bit implementation
cfang
parents:
900
diff
changeset
|
3849 const Type* akls = TypeKlassPtr::make(TypePtr::NotNull, ak, 0/*offset*/); |
|
6804
e626685e9f6c
7193318: C2: remove number of inputs requirement from Node's new operator
kvn
parents:
6795
diff
changeset
|
3850 Node* cast = new (C) CastPPNode(klass_node, akls); |
|
902
fc2281ddce3c
6868269: CompileTheWorld assertion failure introduced by the reexecute bit implementation
cfang
parents:
900
diff
changeset
|
3851 cast->init_req(0, control()); |
|
fc2281ddce3c
6868269: CompileTheWorld assertion failure introduced by the reexecute bit implementation
cfang
parents:
900
diff
changeset
|
3852 klass_node = _gvn.transform(cast); |
|
fc2281ddce3c
6868269: CompileTheWorld assertion failure introduced by the reexecute bit implementation
cfang
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900
diff
changeset
|
3853 } |
|
fc2281ddce3c
6868269: CompileTheWorld assertion failure introduced by the reexecute bit implementation
cfang
parents:
900
diff
changeset
|
3854 |
|
fc2281ddce3c
6868269: CompileTheWorld assertion failure introduced by the reexecute bit implementation
cfang
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900
diff
changeset
|
3855 // Bail out if either start or end is negative. |
|
fc2281ddce3c
6868269: CompileTheWorld assertion failure introduced by the reexecute bit implementation
cfang
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900
diff
changeset
|
3856 generate_negative_guard(start, bailout, &start); |
|
fc2281ddce3c
6868269: CompileTheWorld assertion failure introduced by the reexecute bit implementation
cfang
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900
diff
changeset
|
3857 generate_negative_guard(end, bailout, &end); |
|
fc2281ddce3c
6868269: CompileTheWorld assertion failure introduced by the reexecute bit implementation
cfang
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900
diff
changeset
|
3858 |
|
fc2281ddce3c
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cfang
parents:
900
diff
changeset
|
3859 Node* length = end; |
|
fc2281ddce3c
6868269: CompileTheWorld assertion failure introduced by the reexecute bit implementation
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900
diff
changeset
|
3860 if (_gvn.type(start) != TypeInt::ZERO) { |
|
7194
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twisti
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6894
diff
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|
3861 length = _gvn.transform(new (C) SubINode(end, start)); |
|
902
fc2281ddce3c
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900
diff
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|
3862 } |
|
fc2281ddce3c
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900
diff
changeset
|
3863 |
|
fc2281ddce3c
6868269: CompileTheWorld assertion failure introduced by the reexecute bit implementation
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parents:
900
diff
changeset
|
3864 // Bail out if length is negative. |
|
6180
eeb819cf36e5
7174363: Arrays.copyOfRange leads to VM crash with -Xcomp -server if executed by testing framework
roland
parents:
6143
diff
changeset
|
3865 // Without this the new_array would throw |
|
eeb819cf36e5
7174363: Arrays.copyOfRange leads to VM crash with -Xcomp -server if executed by testing framework
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6143
diff
changeset
|
3866 // NegativeArraySizeException but IllegalArgumentException is what |
|
eeb819cf36e5
7174363: Arrays.copyOfRange leads to VM crash with -Xcomp -server if executed by testing framework
roland
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6143
diff
changeset
|
3867 // should be thrown |
|
eeb819cf36e5
7174363: Arrays.copyOfRange leads to VM crash with -Xcomp -server if executed by testing framework
roland
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6143
diff
changeset
|
3868 generate_negative_guard(length, bailout, &length); |
|
902
fc2281ddce3c
6868269: CompileTheWorld assertion failure introduced by the reexecute bit implementation
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900
diff
changeset
|
3869 |
|
fc2281ddce3c
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900
diff
changeset
|
3870 if (bailout->req() > 1) { |
|
fc2281ddce3c
6868269: CompileTheWorld assertion failure introduced by the reexecute bit implementation
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900
diff
changeset
|
3871 PreserveJVMState pjvms(this); |
|
7194
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6894
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|
3872 set_control(_gvn.transform(bailout)); |
|
902
fc2281ddce3c
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900
diff
changeset
|
3873 uncommon_trap(Deoptimization::Reason_intrinsic, |
|
fc2281ddce3c
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900
diff
changeset
|
3874 Deoptimization::Action_maybe_recompile); |
|
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6868269: CompileTheWorld assertion failure introduced by the reexecute bit implementation
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900
diff
changeset
|
3875 } |
|
fc2281ddce3c
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900
diff
changeset
|
3876 |
|
fc2281ddce3c
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900
diff
changeset
|
3877 if (!stopped()) { |
|
900
9987d9d5eb0e
6833129: specjvm98 fails with NullPointerException in the compiler with -XX:DeoptimizeALot
cfang
parents:
896
diff
changeset
|
3878 // How many elements will we copy from the original? |
|
9987d9d5eb0e
6833129: specjvm98 fails with NullPointerException in the compiler with -XX:DeoptimizeALot
cfang
parents:
896
diff
changeset
|
3879 // The answer is MinI(orig_length - start, length). |
|
7194
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twisti
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6894
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|
3880 Node* orig_tail = _gvn.transform(new (C) SubINode(orig_length, start)); |
|
900
9987d9d5eb0e
6833129: specjvm98 fails with NullPointerException in the compiler with -XX:DeoptimizeALot
cfang
parents:
896
diff
changeset
|
3881 Node* moved = generate_min_max(vmIntrinsics::_min, orig_tail, length); |
|
9987d9d5eb0e
6833129: specjvm98 fails with NullPointerException in the compiler with -XX:DeoptimizeALot
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diff
changeset
|
3882 |
|
7194
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twisti
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6894
diff
changeset
|
3883 newcopy = new_array(klass_node, length, 0); // no argments to push |
|
900
9987d9d5eb0e
6833129: specjvm98 fails with NullPointerException in the compiler with -XX:DeoptimizeALot
cfang
parents:
896
diff
changeset
|
3884 |
|
9987d9d5eb0e
6833129: specjvm98 fails with NullPointerException in the compiler with -XX:DeoptimizeALot
cfang
parents:
896
diff
changeset
|
3885 // Generate a direct call to the right arraycopy function(s). |
|
9987d9d5eb0e
6833129: specjvm98 fails with NullPointerException in the compiler with -XX:DeoptimizeALot
cfang
parents:
896
diff
changeset
|
3886 // We know the copy is disjoint but we might not know if the |
|
9987d9d5eb0e
6833129: specjvm98 fails with NullPointerException in the compiler with -XX:DeoptimizeALot
cfang
parents:
896
diff
changeset
|
3887 // oop stores need checking. |
|
9987d9d5eb0e
6833129: specjvm98 fails with NullPointerException in the compiler with -XX:DeoptimizeALot
cfang
parents:
896
diff
changeset
|
3888 // Extreme case: Arrays.copyOf((Integer[])x, 10, String[].class). |
|
9987d9d5eb0e
6833129: specjvm98 fails with NullPointerException in the compiler with -XX:DeoptimizeALot
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diff
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|
3889 // This will fail a store-check if x contains any non-nulls. |
|
9987d9d5eb0e
6833129: specjvm98 fails with NullPointerException in the compiler with -XX:DeoptimizeALot
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diff
changeset
|
3890 bool disjoint_bases = true; |
|
6180
eeb819cf36e5
7174363: Arrays.copyOfRange leads to VM crash with -Xcomp -server if executed by testing framework
roland
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diff
changeset
|
3891 // if start > orig_length then the length of the copy may be |
|
eeb819cf36e5
7174363: Arrays.copyOfRange leads to VM crash with -Xcomp -server if executed by testing framework
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diff
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|
3892 // negative. |
|
eeb819cf36e5
7174363: Arrays.copyOfRange leads to VM crash with -Xcomp -server if executed by testing framework
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6143
diff
changeset
|
3893 bool length_never_negative = !is_copyOfRange; |
|
900
9987d9d5eb0e
6833129: specjvm98 fails with NullPointerException in the compiler with -XX:DeoptimizeALot
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896
diff
changeset
|
3894 generate_arraycopy(TypeAryPtr::OOPS, T_OBJECT, |
|
9987d9d5eb0e
6833129: specjvm98 fails with NullPointerException in the compiler with -XX:DeoptimizeALot
cfang
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diff
changeset
|
3895 original, start, newcopy, intcon(0), moved, |
|
9987d9d5eb0e
6833129: specjvm98 fails with NullPointerException in the compiler with -XX:DeoptimizeALot
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diff
changeset
|
3896 disjoint_bases, length_never_negative); |
|
902
fc2281ddce3c
6868269: CompileTheWorld assertion failure introduced by the reexecute bit implementation
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diff
changeset
|
3897 } |
|
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|
3898 } // original reexecute is set back here |
| 0 | 3899 |
| 3900 C->set_has_split_ifs(true); // Has chance for split-if optimization | |
|
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|
3901 if (!stopped()) { |
|
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7172640: C2: instrinsic implementations in LibraryCallKit should use argument() instead of pop()
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diff
changeset
|
3902 set_result(newcopy); |
|
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7172640: C2: instrinsic implementations in LibraryCallKit should use argument() instead of pop()
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|
3903 } |
| 0 | 3904 return true; |
| 3905 } | |
| 3906 | |
| 3907 | |
| 3908 //----------------------generate_virtual_guard--------------------------- | |
| 3909 // Helper for hashCode and clone. Peeks inside the vtable to avoid a call. | |
| 3910 Node* LibraryCallKit::generate_virtual_guard(Node* obj_klass, | |
| 3911 RegionNode* slow_region) { | |
| 3912 ciMethod* method = callee(); | |
| 3913 int vtable_index = method->vtable_index(); | |
|
12264
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8014013: CallInfo structure no longer accurately reports the result of a LinkResolver operation
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diff
changeset
|
3914 assert(vtable_index >= 0 || vtable_index == Method::nonvirtual_vtable_index, |
|
b2e698d2276c
8014013: CallInfo structure no longer accurately reports the result of a LinkResolver operation
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diff
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|
3915 err_msg_res("bad index %d", vtable_index)); |
|
6725
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6964458: Reimplement class meta-data storage to use native memory
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|
3916 // Get the Method* out of the appropriate vtable entry. |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
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diff
changeset
|
3917 int entry_offset = (InstanceKlass::vtable_start_offset() + |
| 0 | 3918 vtable_index*vtableEntry::size()) * wordSize + |
| 3919 vtableEntry::method_offset_in_bytes(); | |
| 3920 Node* entry_addr = basic_plus_adr(obj_klass, entry_offset); | |
|
14429
2113136690bc
8024921: PPC64 (part 113): Extend Load and Store nodes to know about memory ordering
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13019
diff
changeset
|
3921 Node* target_call = make_load(NULL, entry_addr, TypePtr::NOTNULL, T_ADDRESS, MemNode::unordered); |
| 0 | 3922 |
| 3923 // Compare the target method with the expected method (e.g., Object.hashCode). | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
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|
3924 const TypePtr* native_call_addr = TypeMetadataPtr::make(method); |
| 0 | 3925 |
| 3926 Node* native_call = makecon(native_call_addr); | |
|
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|
3927 Node* chk_native = _gvn.transform(new(C) CmpPNode(target_call, native_call)); |
|
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|
3928 Node* test_native = _gvn.transform(new(C) BoolNode(chk_native, BoolTest::ne)); |
| 0 | 3929 |
| 3930 return generate_slow_guard(test_native, slow_region); | |
| 3931 } | |
| 3932 | |
| 3933 //-----------------------generate_method_call---------------------------- | |
| 3934 // Use generate_method_call to make a slow-call to the real | |
| 3935 // method if the fast path fails. An alternative would be to | |
| 3936 // use a stub like OptoRuntime::slow_arraycopy_Java. | |
| 3937 // This only works for expanding the current library call, | |
| 3938 // not another intrinsic. (E.g., don't use this for making an | |
| 3939 // arraycopy call inside of the copyOf intrinsic.) | |
| 3940 CallJavaNode* | |
| 3941 LibraryCallKit::generate_method_call(vmIntrinsics::ID method_id, bool is_virtual, bool is_static) { | |
| 3942 // When compiling the intrinsic method itself, do not use this technique. | |
| 3943 guarantee(callee() != C->method(), "cannot make slow-call to self"); | |
| 3944 | |
| 3945 ciMethod* method = callee(); | |
| 3946 // ensure the JVMS we have will be correct for this call | |
| 3947 guarantee(method_id == method->intrinsic_id(), "must match"); | |
| 3948 | |
| 3949 const TypeFunc* tf = TypeFunc::make(method); | |
| 3950 CallJavaNode* slow_call; | |
| 3951 if (is_static) { | |
| 3952 assert(!is_virtual, ""); | |
| 10278 | 3953 slow_call = new(C) CallStaticJavaNode(C, tf, |
|
6804
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7193318: C2: remove number of inputs requirement from Node's new operator
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6795
diff
changeset
|
3954 SharedRuntime::get_resolve_static_call_stub(), |
|
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7193318: C2: remove number of inputs requirement from Node's new operator
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6795
diff
changeset
|
3955 method, bci()); |
| 0 | 3956 } else if (is_virtual) { |
|
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|
3957 null_check_receiver(); |
|
6725
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|
3958 int vtable_index = Method::invalid_vtable_index; |
| 0 | 3959 if (UseInlineCaches) { |
| 3960 // Suppress the vtable call | |
| 3961 } else { | |
| 3962 // hashCode and clone are not a miranda methods, | |
| 3963 // so the vtable index is fixed. | |
| 3964 // No need to use the linkResolver to get it. | |
| 3965 vtable_index = method->vtable_index(); | |
|
12264
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8014013: CallInfo structure no longer accurately reports the result of a LinkResolver operation
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diff
changeset
|
3966 assert(vtable_index >= 0 || vtable_index == Method::nonvirtual_vtable_index, |
|
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changeset
|
3967 err_msg_res("bad index %d", vtable_index)); |
| 0 | 3968 } |
|
6804
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7193318: C2: remove number of inputs requirement from Node's new operator
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diff
changeset
|
3969 slow_call = new(C) CallDynamicJavaNode(tf, |
|
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7193318: C2: remove number of inputs requirement from Node's new operator
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6795
diff
changeset
|
3970 SharedRuntime::get_resolve_virtual_call_stub(), |
|
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7193318: C2: remove number of inputs requirement from Node's new operator
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6795
diff
changeset
|
3971 method, vtable_index, bci()); |
| 0 | 3972 } else { // neither virtual nor static: opt_virtual |
|
7194
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6894
diff
changeset
|
3973 null_check_receiver(); |
| 10278 | 3974 slow_call = new(C) CallStaticJavaNode(C, tf, |
| 0 | 3975 SharedRuntime::get_resolve_opt_virtual_call_stub(), |
| 3976 method, bci()); | |
| 3977 slow_call->set_optimized_virtual(true); | |
| 3978 } | |
| 3979 set_arguments_for_java_call(slow_call); | |
| 3980 set_edges_for_java_call(slow_call); | |
| 3981 return slow_call; | |
| 3982 } | |
| 3983 | |
| 3984 | |
|
17968
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8011646: SEGV in compiled code with loop predication
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diff
changeset
|
3985 /** |
|
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8011646: SEGV in compiled code with loop predication
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17923
diff
changeset
|
3986 * Build special case code for calls to hashCode on an object. This call may |
|
dbf0d88d867d
8011646: SEGV in compiled code with loop predication
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17923
diff
changeset
|
3987 * be virtual (invokevirtual) or bound (invokespecial). For each case we generate |
|
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8011646: SEGV in compiled code with loop predication
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diff
changeset
|
3988 * slightly different code. |
|
dbf0d88d867d
8011646: SEGV in compiled code with loop predication
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diff
changeset
|
3989 */ |
| 0 | 3990 bool LibraryCallKit::inline_native_hashcode(bool is_virtual, bool is_static) { |
| 3991 assert(is_static == callee()->is_static(), "correct intrinsic selection"); | |
| 3992 assert(!(is_virtual && is_static), "either virtual, special, or static"); | |
| 3993 | |
| 3994 enum { _slow_path = 1, _fast_path, _null_path, PATH_LIMIT }; | |
| 3995 | |
|
6804
e626685e9f6c
7193318: C2: remove number of inputs requirement from Node's new operator
kvn
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6795
diff
changeset
|
3996 RegionNode* result_reg = new(C) RegionNode(PATH_LIMIT); |
|
17968
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8011646: SEGV in compiled code with loop predication
anoll
parents:
17923
diff
changeset
|
3997 PhiNode* result_val = new(C) PhiNode(result_reg, TypeInt::INT); |
|
6804
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7193318: C2: remove number of inputs requirement from Node's new operator
kvn
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6795
diff
changeset
|
3998 PhiNode* result_io = new(C) PhiNode(result_reg, Type::ABIO); |
|
17968
dbf0d88d867d
8011646: SEGV in compiled code with loop predication
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parents:
17923
diff
changeset
|
3999 PhiNode* result_mem = new(C) PhiNode(result_reg, Type::MEMORY, TypePtr::BOTTOM); |
| 0 | 4000 Node* obj = NULL; |
| 4001 if (!is_static) { | |
| 4002 // Check for hashing null object | |
|
7194
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7172640: C2: instrinsic implementations in LibraryCallKit should use argument() instead of pop()
twisti
parents:
6894
diff
changeset
|
4003 obj = null_check_receiver(); |
| 0 | 4004 if (stopped()) return true; // unconditionally null |
| 4005 result_reg->init_req(_null_path, top()); | |
| 4006 result_val->init_req(_null_path, top()); | |
| 4007 } else { | |
| 4008 // Do a null check, and return zero if null. | |
| 4009 // System.identityHashCode(null) == 0 | |
| 4010 obj = argument(0); | |
| 4011 Node* null_ctl = top(); | |
| 4012 obj = null_check_oop(obj, &null_ctl); | |
| 4013 result_reg->init_req(_null_path, null_ctl); | |
| 4014 result_val->init_req(_null_path, _gvn.intcon(0)); | |
| 4015 } | |
| 4016 | |
| 4017 // Unconditionally null? Then return right away. | |
| 4018 if (stopped()) { | |
|
7194
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7172640: C2: instrinsic implementations in LibraryCallKit should use argument() instead of pop()
twisti
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6894
diff
changeset
|
4019 set_control( result_reg->in(_null_path)); |
| 0 | 4020 if (!stopped()) |
|
7194
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7172640: C2: instrinsic implementations in LibraryCallKit should use argument() instead of pop()
twisti
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6894
diff
changeset
|
4021 set_result(result_val->in(_null_path)); |
| 0 | 4022 return true; |
| 4023 } | |
| 4024 | |
| 4025 // We only go to the fast case code if we pass a number of guards. The | |
| 4026 // paths which do not pass are accumulated in the slow_region. | |
|
6804
e626685e9f6c
7193318: C2: remove number of inputs requirement from Node's new operator
kvn
parents:
6795
diff
changeset
|
4027 RegionNode* slow_region = new (C) RegionNode(1); |
| 0 | 4028 record_for_igvn(slow_region); |
| 4029 | |
| 4030 // If this is a virtual call, we generate a funny guard. We pull out | |
| 4031 // the vtable entry corresponding to hashCode() from the target object. | |
| 4032 // If the target method which we are calling happens to be the native | |
| 4033 // Object hashCode() method, we pass the guard. We do not need this | |
| 4034 // guard for non-virtual calls -- the caller is known to be the native | |
| 4035 // Object hashCode(). | |
| 4036 if (is_virtual) { | |
|
17968
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changeset
|
4037 // After null check, get the object's klass. |
|
dbf0d88d867d
8011646: SEGV in compiled code with loop predication
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17923
diff
changeset
|
4038 Node* obj_klass = load_object_klass(obj); |
| 0 | 4039 generate_virtual_guard(obj_klass, slow_region); |
| 4040 } | |
| 4041 | |
| 4042 // Get the header out of the object, use LoadMarkNode when available | |
| 4043 Node* header_addr = basic_plus_adr(obj, oopDesc::mark_offset_in_bytes()); | |
|
17968
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diff
changeset
|
4044 // The control of the load must be NULL. Otherwise, the load can move before |
|
dbf0d88d867d
8011646: SEGV in compiled code with loop predication
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diff
changeset
|
4045 // the null check after castPP removal. |
|
dbf0d88d867d
8011646: SEGV in compiled code with loop predication
anoll
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diff
changeset
|
4046 Node* no_ctrl = NULL; |
|
dbf0d88d867d
8011646: SEGV in compiled code with loop predication
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diff
changeset
|
4047 Node* header = make_load(no_ctrl, header_addr, TypeX_X, TypeX_X->basic_type(), MemNode::unordered); |
| 0 | 4048 |
| 4049 // Test the header to see if it is unlocked. | |
|
17968
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8011646: SEGV in compiled code with loop predication
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diff
changeset
|
4050 Node* lock_mask = _gvn.MakeConX(markOopDesc::biased_lock_mask_in_place); |
|
dbf0d88d867d
8011646: SEGV in compiled code with loop predication
anoll
parents:
17923
diff
changeset
|
4051 Node* lmasked_header = _gvn.transform(new (C) AndXNode(header, lock_mask)); |
|
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8011646: SEGV in compiled code with loop predication
anoll
parents:
17923
diff
changeset
|
4052 Node* unlocked_val = _gvn.MakeConX(markOopDesc::unlocked_value); |
|
dbf0d88d867d
8011646: SEGV in compiled code with loop predication
anoll
parents:
17923
diff
changeset
|
4053 Node* chk_unlocked = _gvn.transform(new (C) CmpXNode( lmasked_header, unlocked_val)); |
|
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8011646: SEGV in compiled code with loop predication
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17923
diff
changeset
|
4054 Node* test_unlocked = _gvn.transform(new (C) BoolNode( chk_unlocked, BoolTest::ne)); |
| 0 | 4055 |
| 4056 generate_slow_guard(test_unlocked, slow_region); | |
| 4057 | |
| 4058 // Get the hash value and check to see that it has been properly assigned. | |
| 4059 // We depend on hash_mask being at most 32 bits and avoid the use of | |
| 4060 // hash_mask_in_place because it could be larger than 32 bits in a 64-bit | |
| 4061 // vm: see markOop.hpp. | |
|
17968
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diff
changeset
|
4062 Node* hash_mask = _gvn.intcon(markOopDesc::hash_mask); |
|
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8011646: SEGV in compiled code with loop predication
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parents:
17923
diff
changeset
|
4063 Node* hash_shift = _gvn.intcon(markOopDesc::hash_shift); |
|
dbf0d88d867d
8011646: SEGV in compiled code with loop predication
anoll
parents:
17923
diff
changeset
|
4064 Node* hshifted_header= _gvn.transform(new (C) URShiftXNode(header, hash_shift)); |
| 0 | 4065 // This hack lets the hash bits live anywhere in the mark object now, as long |
| 605 | 4066 // as the shift drops the relevant bits into the low 32 bits. Note that |
| 0 | 4067 // Java spec says that HashCode is an int so there's no point in capturing |
| 4068 // an 'X'-sized hashcode (32 in 32-bit build or 64 in 64-bit build). | |
| 4069 hshifted_header = ConvX2I(hshifted_header); | |
|
17968
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17923
diff
changeset
|
4070 Node* hash_val = _gvn.transform(new (C) AndINode(hshifted_header, hash_mask)); |
|
dbf0d88d867d
8011646: SEGV in compiled code with loop predication
anoll
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changeset
|
4071 |
|
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8011646: SEGV in compiled code with loop predication
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diff
changeset
|
4072 Node* no_hash_val = _gvn.intcon(markOopDesc::no_hash); |
|
dbf0d88d867d
8011646: SEGV in compiled code with loop predication
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17923
diff
changeset
|
4073 Node* chk_assigned = _gvn.transform(new (C) CmpINode( hash_val, no_hash_val)); |
|
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changeset
|
4074 Node* test_assigned = _gvn.transform(new (C) BoolNode( chk_assigned, BoolTest::eq)); |
| 0 | 4075 |
| 4076 generate_slow_guard(test_assigned, slow_region); | |
| 4077 | |
| 4078 Node* init_mem = reset_memory(); | |
| 4079 // fill in the rest of the null path: | |
| 4080 result_io ->init_req(_null_path, i_o()); | |
| 4081 result_mem->init_req(_null_path, init_mem); | |
| 4082 | |
| 4083 result_val->init_req(_fast_path, hash_val); | |
| 4084 result_reg->init_req(_fast_path, control()); | |
| 4085 result_io ->init_req(_fast_path, i_o()); | |
| 4086 result_mem->init_req(_fast_path, init_mem); | |
| 4087 | |
| 4088 // Generate code for the slow case. We make a call to hashCode(). | |
| 4089 set_control(_gvn.transform(slow_region)); | |
| 4090 if (!stopped()) { | |
| 4091 // No need for PreserveJVMState, because we're using up the present state. | |
| 4092 set_all_memory(init_mem); | |
|
7194
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6894
diff
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|
4093 vmIntrinsics::ID hashCode_id = is_static ? vmIntrinsics::_identityHashCode : vmIntrinsics::_hashCode; |
| 0 | 4094 CallJavaNode* slow_call = generate_method_call(hashCode_id, is_virtual, is_static); |
| 4095 Node* slow_result = set_results_for_java_call(slow_call); | |
| 4096 // this->control() comes from set_results_for_java_call | |
| 4097 result_reg->init_req(_slow_path, control()); | |
| 4098 result_val->init_req(_slow_path, slow_result); | |
| 4099 result_io ->set_req(_slow_path, i_o()); | |
| 4100 result_mem ->set_req(_slow_path, reset_memory()); | |
| 4101 } | |
| 4102 | |
| 4103 // Return the combined state. | |
| 4104 set_i_o( _gvn.transform(result_io) ); | |
|
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10405
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|
4105 set_all_memory( _gvn.transform(result_mem)); |
|
7194
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|
4106 |
|
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6894
diff
changeset
|
4107 set_result(result_reg, result_val); |
| 0 | 4108 return true; |
| 4109 } | |
| 4110 | |
| 4111 //---------------------------inline_native_getClass---------------------------- | |
|
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|
4112 // public final native Class<?> java.lang.Object.getClass(); |
|
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|
4113 // |
| 605 | 4114 // Build special case code for calls to getClass on an object. |
| 0 | 4115 bool LibraryCallKit::inline_native_getClass() { |
|
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|
4116 Node* obj = null_check_receiver(); |
| 0 | 4117 if (stopped()) return true; |
|
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|
4118 set_result(load_mirror_from_klass(load_object_klass(obj))); |
| 0 | 4119 return true; |
| 4120 } | |
| 4121 | |
| 4122 //-----------------inline_native_Reflection_getCallerClass--------------------- | |
|
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7198429: need checked categorization of caller-sensitive methods in the JDK
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|
4123 // public static native Class<?> sun.reflect.Reflection.getCallerClass(); |
|
7194
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|
4124 // |
| 0 | 4125 // In the presence of deep enough inlining, getCallerClass() becomes a no-op. |
| 4126 // | |
|
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|
4127 // NOTE: This code must perform the same logic as JVM_GetCallerClass |
|
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|
4128 // in that it must skip particular security frames and checks for |
|
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|
4129 // caller sensitive methods. |
| 0 | 4130 bool LibraryCallKit::inline_native_Reflection_getCallerClass() { |
| 4131 #ifndef PRODUCT | |
| 12295 | 4132 if ((C->print_intrinsics() || C->print_inlining()) && Verbose) { |
| 0 | 4133 tty->print_cr("Attempting to inline sun.reflect.Reflection.getCallerClass"); |
| 4134 } | |
| 4135 #endif | |
| 4136 | |
| 4137 if (!jvms()->has_method()) { | |
| 4138 #ifndef PRODUCT | |
| 12295 | 4139 if ((C->print_intrinsics() || C->print_inlining()) && Verbose) { |
| 0 | 4140 tty->print_cr(" Bailing out because intrinsic was inlined at top level"); |
| 4141 } | |
| 4142 #endif | |
| 4143 return false; | |
| 4144 } | |
| 4145 | |
| 4146 // Walk back up the JVM state to find the caller at the required | |
|
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|
4147 // depth. |
|
16885e702c88
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|
4148 JVMState* caller_jvms = jvms(); |
|
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7198429: need checked categorization of caller-sensitive methods in the JDK
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|
4149 |
|
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|
4150 // Cf. JVM_GetCallerClass |
|
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|
4151 // NOTE: Start the loop at depth 1 because the current JVM state does |
|
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|
4152 // not include the Reflection.getCallerClass() frame. |
|
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|
4153 for (int n = 1; caller_jvms != NULL; caller_jvms = caller_jvms->caller(), n++) { |
|
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|
4154 ciMethod* m = caller_jvms->method(); |
|
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|
4155 switch (n) { |
|
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|
4156 case 0: |
|
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|
4157 fatal("current JVM state does not include the Reflection.getCallerClass frame"); |
|
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|
4158 break; |
|
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|
4159 case 1: |
|
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|
4160 // Frame 0 and 1 must be caller sensitive (see JVM_GetCallerClass). |
|
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|
4161 if (!m->caller_sensitive()) { |
|
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|
4162 #ifndef PRODUCT |
| 12295 | 4163 if ((C->print_intrinsics() || C->print_inlining()) && Verbose) { |
|
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|
4164 tty->print_cr(" Bailing out: CallerSensitive annotation expected at frame %d", n); |
|
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|
4165 } |
|
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|
4166 #endif |
|
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|
4167 return false; // bail-out; let JVM_GetCallerClass do the work |
| 0 | 4168 } |
|
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|
4169 break; |
|
16885e702c88
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|
4170 default: |
|
16885e702c88
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changeset
|
4171 if (!m->is_ignored_by_security_stack_walk()) { |
|
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|
4172 // We have reached the desired frame; return the holder class. |
|
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|
4173 // Acquire method holder as java.lang.Class and push as constant. |
|
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|
4174 ciInstanceKlass* caller_klass = caller_jvms->method()->holder(); |
|
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|
4175 ciInstance* caller_mirror = caller_klass->java_mirror(); |
|
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|
4176 set_result(makecon(TypeInstPtr::make(caller_mirror))); |
|
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|
4177 |
| 0 | 4178 #ifndef PRODUCT |
| 12295 | 4179 if ((C->print_intrinsics() || C->print_inlining()) && Verbose) { |
|
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|
4180 tty->print_cr(" Succeeded: caller = %d) %s.%s, JVMS depth = %d", n, caller_klass->name()->as_utf8(), caller_jvms->method()->name()->as_utf8(), jvms()->depth()); |
|
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|
4181 tty->print_cr(" JVM state at this point:"); |
|
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7198429: need checked categorization of caller-sensitive methods in the JDK
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|
4182 for (int i = jvms()->depth(), n = 1; i >= 1; i--, n++) { |
|
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7198429: need checked categorization of caller-sensitive methods in the JDK
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|
4183 ciMethod* m = jvms()->of_depth(i)->method(); |
|
16885e702c88
7198429: need checked categorization of caller-sensitive methods in the JDK
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|
4184 tty->print_cr(" %d) %s.%s", n, m->holder()->name()->as_utf8(), m->name()->as_utf8()); |
|
16885e702c88
7198429: need checked categorization of caller-sensitive methods in the JDK
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|
4185 } |
|
16885e702c88
7198429: need checked categorization of caller-sensitive methods in the JDK
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|
4186 } |
| 0 | 4187 #endif |
|
8866
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7198429: need checked categorization of caller-sensitive methods in the JDK
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changeset
|
4188 return true; |
|
16885e702c88
7198429: need checked categorization of caller-sensitive methods in the JDK
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diff
changeset
|
4189 } |
|
16885e702c88
7198429: need checked categorization of caller-sensitive methods in the JDK
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diff
changeset
|
4190 break; |
|
16885e702c88
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diff
changeset
|
4191 } |
| 0 | 4192 } |
| 4193 | |
| 4194 #ifndef PRODUCT | |
| 12295 | 4195 if ((C->print_intrinsics() || C->print_inlining()) && Verbose) { |
|
8866
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7198429: need checked categorization of caller-sensitive methods in the JDK
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changeset
|
4196 tty->print_cr(" Bailing out because caller depth exceeded inlining depth = %d", jvms()->depth()); |
| 0 | 4197 tty->print_cr(" JVM state at this point:"); |
|
8866
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changeset
|
4198 for (int i = jvms()->depth(), n = 1; i >= 1; i--, n++) { |
|
7194
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|
4199 ciMethod* m = jvms()->of_depth(i)->method(); |
|
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7198429: need checked categorization of caller-sensitive methods in the JDK
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changeset
|
4200 tty->print_cr(" %d) %s.%s", n, m->holder()->name()->as_utf8(), m->name()->as_utf8()); |
| 0 | 4201 } |
| 4202 } | |
| 4203 #endif | |
|
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changeset
|
4204 |
|
16885e702c88
7198429: need checked categorization of caller-sensitive methods in the JDK
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changeset
|
4205 return false; // bail-out; let JVM_GetCallerClass do the work |
| 0 | 4206 } |
| 4207 | |
| 4208 bool LibraryCallKit::inline_fp_conversions(vmIntrinsics::ID id) { | |
|
7194
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|
4209 Node* arg = argument(0); |
|
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|
4210 Node* result; |
| 0 | 4211 |
| 4212 switch (id) { | |
|
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|
4213 case vmIntrinsics::_floatToRawIntBits: result = new (C) MoveF2INode(arg); break; |
|
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|
4214 case vmIntrinsics::_intBitsToFloat: result = new (C) MoveI2FNode(arg); break; |
|
beebba0acc11
7172640: C2: instrinsic implementations in LibraryCallKit should use argument() instead of pop()
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|
4215 case vmIntrinsics::_doubleToRawLongBits: result = new (C) MoveD2LNode(arg); break; |
|
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|
4216 case vmIntrinsics::_longBitsToDouble: result = new (C) MoveL2DNode(arg); break; |
| 0 | 4217 |
| 4218 case vmIntrinsics::_doubleToLongBits: { | |
| 4219 // two paths (plus control) merge in a wood | |
|
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|
4220 RegionNode *r = new (C) RegionNode(3); |
|
e626685e9f6c
7193318: C2: remove number of inputs requirement from Node's new operator
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changeset
|
4221 Node *phi = new (C) PhiNode(r, TypeLong::LONG); |
|
e626685e9f6c
7193318: C2: remove number of inputs requirement from Node's new operator
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|
4222 |
|
7194
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|
4223 Node *cmpisnan = _gvn.transform(new (C) CmpDNode(arg, arg)); |
| 0 | 4224 // Build the boolean node |
|
7194
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changeset
|
4225 Node *bolisnan = _gvn.transform(new (C) BoolNode(cmpisnan, BoolTest::ne)); |
| 0 | 4226 |
| 4227 // Branch either way. | |
| 4228 // NaN case is less traveled, which makes all the difference. | |
| 4229 IfNode *ifisnan = create_and_xform_if(control(), bolisnan, PROB_STATIC_FREQUENT, COUNT_UNKNOWN); | |
| 4230 Node *opt_isnan = _gvn.transform(ifisnan); | |
| 4231 assert( opt_isnan->is_If(), "Expect an IfNode"); | |
| 4232 IfNode *opt_ifisnan = (IfNode*)opt_isnan; | |
|
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|
4233 Node *iftrue = _gvn.transform(new (C) IfTrueNode(opt_ifisnan)); |
| 0 | 4234 |
| 4235 set_control(iftrue); | |
| 4236 | |
| 4237 static const jlong nan_bits = CONST64(0x7ff8000000000000); | |
| 4238 Node *slow_result = longcon(nan_bits); // return NaN | |
| 4239 phi->init_req(1, _gvn.transform( slow_result )); | |
| 4240 r->init_req(1, iftrue); | |
| 4241 | |
| 4242 // Else fall through | |
|
7194
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changeset
|
4243 Node *iffalse = _gvn.transform(new (C) IfFalseNode(opt_ifisnan)); |
| 0 | 4244 set_control(iffalse); |
| 4245 | |
|
7194
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changeset
|
4246 phi->init_req(2, _gvn.transform(new (C) MoveD2LNode(arg))); |
| 0 | 4247 r->init_req(2, iffalse); |
| 4248 | |
| 4249 // Post merge | |
| 4250 set_control(_gvn.transform(r)); | |
| 4251 record_for_igvn(r); | |
| 4252 | |
|
7194
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|
4253 C->set_has_split_ifs(true); // Has chance for split-if optimization |
|
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changeset
|
4254 result = phi; |
| 0 | 4255 assert(result->bottom_type()->isa_long(), "must be"); |
| 4256 break; | |
| 4257 } | |
| 4258 | |
| 4259 case vmIntrinsics::_floatToIntBits: { | |
| 4260 // two paths (plus control) merge in a wood | |
|
6804
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|
4261 RegionNode *r = new (C) RegionNode(3); |
|
e626685e9f6c
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|
4262 Node *phi = new (C) PhiNode(r, TypeInt::INT); |
|
e626685e9f6c
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|
4263 |
|
7194
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changeset
|
4264 Node *cmpisnan = _gvn.transform(new (C) CmpFNode(arg, arg)); |
| 0 | 4265 // Build the boolean node |
|
7194
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changeset
|
4266 Node *bolisnan = _gvn.transform(new (C) BoolNode(cmpisnan, BoolTest::ne)); |
| 0 | 4267 |
| 4268 // Branch either way. | |
| 4269 // NaN case is less traveled, which makes all the difference. | |
| 4270 IfNode *ifisnan = create_and_xform_if(control(), bolisnan, PROB_STATIC_FREQUENT, COUNT_UNKNOWN); | |
| 4271 Node *opt_isnan = _gvn.transform(ifisnan); | |
| 4272 assert( opt_isnan->is_If(), "Expect an IfNode"); | |
| 4273 IfNode *opt_ifisnan = (IfNode*)opt_isnan; | |
|
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changeset
|
4274 Node *iftrue = _gvn.transform(new (C) IfTrueNode(opt_ifisnan)); |
| 0 | 4275 |
| 4276 set_control(iftrue); | |
| 4277 | |
| 4278 static const jint nan_bits = 0x7fc00000; | |
| 4279 Node *slow_result = makecon(TypeInt::make(nan_bits)); // return NaN | |
| 4280 phi->init_req(1, _gvn.transform( slow_result )); | |
| 4281 r->init_req(1, iftrue); | |
| 4282 | |
| 4283 // Else fall through | |
|
7194
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changeset
|
4284 Node *iffalse = _gvn.transform(new (C) IfFalseNode(opt_ifisnan)); |
| 0 | 4285 set_control(iffalse); |
| 4286 | |
|
7194
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diff
changeset
|
4287 phi->init_req(2, _gvn.transform(new (C) MoveF2INode(arg))); |
| 0 | 4288 r->init_req(2, iffalse); |
| 4289 | |
| 4290 // Post merge | |
| 4291 set_control(_gvn.transform(r)); | |
| 4292 record_for_igvn(r); | |
| 4293 | |
|
7194
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7172640: C2: instrinsic implementations in LibraryCallKit should use argument() instead of pop()
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changeset
|
4294 C->set_has_split_ifs(true); // Has chance for split-if optimization |
|
beebba0acc11
7172640: C2: instrinsic implementations in LibraryCallKit should use argument() instead of pop()
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changeset
|
4295 result = phi; |
| 0 | 4296 assert(result->bottom_type()->isa_int(), "must be"); |
| 4297 break; | |
| 4298 } | |
| 4299 | |
| 4300 default: | |
|
7194
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changeset
|
4301 fatal_unexpected_iid(id); |
|
beebba0acc11
7172640: C2: instrinsic implementations in LibraryCallKit should use argument() instead of pop()
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diff
changeset
|
4302 break; |
| 0 | 4303 } |
|
7194
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changeset
|
4304 set_result(_gvn.transform(result)); |
| 0 | 4305 return true; |
| 4306 } | |
| 4307 | |
| 4308 #ifdef _LP64 | |
| 4309 #define XTOP ,top() /*additional argument*/ | |
| 4310 #else //_LP64 | |
| 4311 #define XTOP /*no additional argument*/ | |
| 4312 #endif //_LP64 | |
| 4313 | |
| 4314 //----------------------inline_unsafe_copyMemory------------------------- | |
|
7194
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7172640: C2: instrinsic implementations in LibraryCallKit should use argument() instead of pop()
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diff
changeset
|
4315 // public native void sun.misc.Unsafe.copyMemory(Object srcBase, long srcOffset, Object destBase, long destOffset, long bytes); |
| 0 | 4316 bool LibraryCallKit::inline_unsafe_copyMemory() { |
| 4317 if (callee()->is_static()) return false; // caller must have the capability! | |
|
7194
beebba0acc11
7172640: C2: instrinsic implementations in LibraryCallKit should use argument() instead of pop()
twisti
parents:
6894
diff
changeset
|
4318 null_check_receiver(); // null-check receiver |
| 0 | 4319 if (stopped()) return true; |
| 4320 | |
| 4321 C->set_has_unsafe_access(true); // Mark eventual nmethod as "unsafe". | |
| 4322 | |
|
7194
beebba0acc11
7172640: C2: instrinsic implementations in LibraryCallKit should use argument() instead of pop()
twisti
parents:
6894
diff
changeset
|
4323 Node* src_ptr = argument(1); // type: oop |
|
beebba0acc11
7172640: C2: instrinsic implementations in LibraryCallKit should use argument() instead of pop()
twisti
parents:
6894
diff
changeset
|
4324 Node* src_off = ConvL2X(argument(2)); // type: long |
|
beebba0acc11
7172640: C2: instrinsic implementations in LibraryCallKit should use argument() instead of pop()
twisti
parents:
6894
diff
changeset
|
4325 Node* dst_ptr = argument(4); // type: oop |
|
beebba0acc11
7172640: C2: instrinsic implementations in LibraryCallKit should use argument() instead of pop()
twisti
parents:
6894
diff
changeset
|
4326 Node* dst_off = ConvL2X(argument(5)); // type: long |
|
beebba0acc11
7172640: C2: instrinsic implementations in LibraryCallKit should use argument() instead of pop()
twisti
parents:
6894
diff
changeset
|
4327 Node* size = ConvL2X(argument(7)); // type: long |
| 0 | 4328 |
| 4329 assert(Unsafe_field_offset_to_byte_offset(11) == 11, | |
| 4330 "fieldOffset must be byte-scaled"); | |
| 4331 | |
| 4332 Node* src = make_unsafe_address(src_ptr, src_off); | |
| 4333 Node* dst = make_unsafe_address(dst_ptr, dst_off); | |
| 4334 | |
| 4335 // Conservatively insert a memory barrier on all memory slices. | |
| 4336 // Do not let writes of the copy source or destination float below the copy. | |
| 4337 insert_mem_bar(Op_MemBarCPUOrder); | |
| 4338 | |
| 4339 // Call it. Note that the length argument is not scaled. | |
| 4340 make_runtime_call(RC_LEAF|RC_NO_FP, | |
| 4341 OptoRuntime::fast_arraycopy_Type(), | |
| 4342 StubRoutines::unsafe_arraycopy(), | |
| 4343 "unsafe_arraycopy", | |
| 4344 TypeRawPtr::BOTTOM, | |
| 4345 src, dst, size XTOP); | |
| 4346 | |
| 4347 // Do not let reads of the copy destination float above the copy. | |
| 4348 insert_mem_bar(Op_MemBarCPUOrder); | |
| 4349 | |
| 4350 return true; | |
| 4351 } | |
| 4352 | |
|
833
acba6af809c8
6840775: Multiple JVM crashes seen with 1.6.0_10 through 1.6.0_14
kvn
parents:
827
diff
changeset
|
4353 //------------------------clone_coping----------------------------------- |
|
acba6af809c8
6840775: Multiple JVM crashes seen with 1.6.0_10 through 1.6.0_14
kvn
parents:
827
diff
changeset
|
4354 // Helper function for inline_native_clone. |
|
acba6af809c8
6840775: Multiple JVM crashes seen with 1.6.0_10 through 1.6.0_14
kvn
parents:
827
diff
changeset
|
4355 void LibraryCallKit::copy_to_clone(Node* obj, Node* alloc_obj, Node* obj_size, bool is_array, bool card_mark) { |
|
acba6af809c8
6840775: Multiple JVM crashes seen with 1.6.0_10 through 1.6.0_14
kvn
parents:
827
diff
changeset
|
4356 assert(obj_size != NULL, ""); |
|
acba6af809c8
6840775: Multiple JVM crashes seen with 1.6.0_10 through 1.6.0_14
kvn
parents:
827
diff
changeset
|
4357 Node* raw_obj = alloc_obj->in(1); |
|
acba6af809c8
6840775: Multiple JVM crashes seen with 1.6.0_10 through 1.6.0_14
kvn
parents:
827
diff
changeset
|
4358 assert(alloc_obj->is_CheckCastPP() && raw_obj->is_Proj() && raw_obj->in(0)->is_Allocate(), ""); |
|
acba6af809c8
6840775: Multiple JVM crashes seen with 1.6.0_10 through 1.6.0_14
kvn
parents:
827
diff
changeset
|
4359 |
|
4763
1dc233a8c7fe
7121140: Allocation paths require explicit memory synchronization operations for RMO systems
roland
parents:
4762
diff
changeset
|
4360 AllocateNode* alloc = NULL; |
|
833
acba6af809c8
6840775: Multiple JVM crashes seen with 1.6.0_10 through 1.6.0_14
kvn
parents:
827
diff
changeset
|
4361 if (ReduceBulkZeroing) { |
|
acba6af809c8
6840775: Multiple JVM crashes seen with 1.6.0_10 through 1.6.0_14
kvn
parents:
827
diff
changeset
|
4362 // We will be completely responsible for initializing this object - |
|
acba6af809c8
6840775: Multiple JVM crashes seen with 1.6.0_10 through 1.6.0_14
kvn
parents:
827
diff
changeset
|
4363 // mark Initialize node as complete. |
|
4763
1dc233a8c7fe
7121140: Allocation paths require explicit memory synchronization operations for RMO systems
roland
parents:
4762
diff
changeset
|
4364 alloc = AllocateNode::Ideal_allocation(alloc_obj, &_gvn); |
|
833
acba6af809c8
6840775: Multiple JVM crashes seen with 1.6.0_10 through 1.6.0_14
kvn
parents:
827
diff
changeset
|
4365 // The object was just allocated - there should be no any stores! |
|
acba6af809c8
6840775: Multiple JVM crashes seen with 1.6.0_10 through 1.6.0_14
kvn
parents:
827
diff
changeset
|
4366 guarantee(alloc != NULL && alloc->maybe_set_complete(&_gvn), ""); |
|
4763
1dc233a8c7fe
7121140: Allocation paths require explicit memory synchronization operations for RMO systems
roland
parents:
4762
diff
changeset
|
4367 // Mark as complete_with_arraycopy so that on AllocateNode |
|
1dc233a8c7fe
7121140: Allocation paths require explicit memory synchronization operations for RMO systems
roland
parents:
4762
diff
changeset
|
4368 // expansion, we know this AllocateNode is initialized by an array |
|
1dc233a8c7fe
7121140: Allocation paths require explicit memory synchronization operations for RMO systems
roland
parents:
4762
diff
changeset
|
4369 // copy and a StoreStore barrier exists after the array copy. |
|
1dc233a8c7fe
7121140: Allocation paths require explicit memory synchronization operations for RMO systems
roland
parents:
4762
diff
changeset
|
4370 alloc->initialization()->set_complete_with_arraycopy(); |
|
833
acba6af809c8
6840775: Multiple JVM crashes seen with 1.6.0_10 through 1.6.0_14
kvn
parents:
827
diff
changeset
|
4371 } |
|
acba6af809c8
6840775: Multiple JVM crashes seen with 1.6.0_10 through 1.6.0_14
kvn
parents:
827
diff
changeset
|
4372 |
|
acba6af809c8
6840775: Multiple JVM crashes seen with 1.6.0_10 through 1.6.0_14
kvn
parents:
827
diff
changeset
|
4373 // Copy the fastest available way. |
|
acba6af809c8
6840775: Multiple JVM crashes seen with 1.6.0_10 through 1.6.0_14
kvn
parents:
827
diff
changeset
|
4374 // TODO: generate fields copies for small objects instead. |
|
acba6af809c8
6840775: Multiple JVM crashes seen with 1.6.0_10 through 1.6.0_14
kvn
parents:
827
diff
changeset
|
4375 Node* src = obj; |
|
958
c7e94e8fff43
6880053: assert(alloc_obj->as_CheckCastPP()->type() != TypeInstPtr::NOTNULL)
kvn
parents:
950
diff
changeset
|
4376 Node* dest = alloc_obj; |
|
833
acba6af809c8
6840775: Multiple JVM crashes seen with 1.6.0_10 through 1.6.0_14
kvn
parents:
827
diff
changeset
|
4377 Node* size = _gvn.transform(obj_size); |
|
acba6af809c8
6840775: Multiple JVM crashes seen with 1.6.0_10 through 1.6.0_14
kvn
parents:
827
diff
changeset
|
4378 |
|
acba6af809c8
6840775: Multiple JVM crashes seen with 1.6.0_10 through 1.6.0_14
kvn
parents:
827
diff
changeset
|
4379 // Exclude the header but include array length to copy by 8 bytes words. |
|
acba6af809c8
6840775: Multiple JVM crashes seen with 1.6.0_10 through 1.6.0_14
kvn
parents:
827
diff
changeset
|
4380 // Can't use base_offset_in_bytes(bt) since basic type is unknown. |
|
acba6af809c8
6840775: Multiple JVM crashes seen with 1.6.0_10 through 1.6.0_14
kvn
parents:
827
diff
changeset
|
4381 int base_off = is_array ? arrayOopDesc::length_offset_in_bytes() : |
|
acba6af809c8
6840775: Multiple JVM crashes seen with 1.6.0_10 through 1.6.0_14
kvn
parents:
827
diff
changeset
|
4382 instanceOopDesc::base_offset_in_bytes(); |
|
acba6af809c8
6840775: Multiple JVM crashes seen with 1.6.0_10 through 1.6.0_14
kvn
parents:
827
diff
changeset
|
4383 // base_off: |
|
acba6af809c8
6840775: Multiple JVM crashes seen with 1.6.0_10 through 1.6.0_14
kvn
parents:
827
diff
changeset
|
4384 // 8 - 32-bit VM |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6615
diff
changeset
|
4385 // 12 - 64-bit VM, compressed klass |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6615
diff
changeset
|
4386 // 16 - 64-bit VM, normal klass |
|
833
acba6af809c8
6840775: Multiple JVM crashes seen with 1.6.0_10 through 1.6.0_14
kvn
parents:
827
diff
changeset
|
4387 if (base_off % BytesPerLong != 0) { |
|
12226
7944aba7ba41
8015107: NPG: Use consistent naming for metaspace concepts
ehelin
parents:
12169
diff
changeset
|
4388 assert(UseCompressedClassPointers, ""); |
|
833
acba6af809c8
6840775: Multiple JVM crashes seen with 1.6.0_10 through 1.6.0_14
kvn
parents:
827
diff
changeset
|
4389 if (is_array) { |
|
acba6af809c8
6840775: Multiple JVM crashes seen with 1.6.0_10 through 1.6.0_14
kvn
parents:
827
diff
changeset
|
4390 // Exclude length to copy by 8 bytes words. |
|
acba6af809c8
6840775: Multiple JVM crashes seen with 1.6.0_10 through 1.6.0_14
kvn
parents:
827
diff
changeset
|
4391 base_off += sizeof(int); |
|
acba6af809c8
6840775: Multiple JVM crashes seen with 1.6.0_10 through 1.6.0_14
kvn
parents:
827
diff
changeset
|
4392 } else { |
|
acba6af809c8
6840775: Multiple JVM crashes seen with 1.6.0_10 through 1.6.0_14
kvn
parents:
827
diff
changeset
|
4393 // Include klass to copy by 8 bytes words. |
|
acba6af809c8
6840775: Multiple JVM crashes seen with 1.6.0_10 through 1.6.0_14
kvn
parents:
827
diff
changeset
|
4394 base_off = instanceOopDesc::klass_offset_in_bytes(); |
|
acba6af809c8
6840775: Multiple JVM crashes seen with 1.6.0_10 through 1.6.0_14
kvn
parents:
827
diff
changeset
|
4395 } |
|
acba6af809c8
6840775: Multiple JVM crashes seen with 1.6.0_10 through 1.6.0_14
kvn
parents:
827
diff
changeset
|
4396 assert(base_off % BytesPerLong == 0, "expect 8 bytes alignment"); |
|
acba6af809c8
6840775: Multiple JVM crashes seen with 1.6.0_10 through 1.6.0_14
kvn
parents:
827
diff
changeset
|
4397 } |
|
acba6af809c8
6840775: Multiple JVM crashes seen with 1.6.0_10 through 1.6.0_14
kvn
parents:
827
diff
changeset
|
4398 src = basic_plus_adr(src, base_off); |
|
acba6af809c8
6840775: Multiple JVM crashes seen with 1.6.0_10 through 1.6.0_14
kvn
parents:
827
diff
changeset
|
4399 dest = basic_plus_adr(dest, base_off); |
|
acba6af809c8
6840775: Multiple JVM crashes seen with 1.6.0_10 through 1.6.0_14
kvn
parents:
827
diff
changeset
|
4400 |
|
acba6af809c8
6840775: Multiple JVM crashes seen with 1.6.0_10 through 1.6.0_14
kvn
parents:
827
diff
changeset
|
4401 // Compute the length also, if needed: |
|
acba6af809c8
6840775: Multiple JVM crashes seen with 1.6.0_10 through 1.6.0_14
kvn
parents:
827
diff
changeset
|
4402 Node* countx = size; |
|
11080
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10405
diff
changeset
|
4403 countx = _gvn.transform(new (C) SubXNode(countx, MakeConX(base_off))); |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10405
diff
changeset
|
4404 countx = _gvn.transform(new (C) URShiftXNode(countx, intcon(LogBytesPerLong) )); |
|
833
acba6af809c8
6840775: Multiple JVM crashes seen with 1.6.0_10 through 1.6.0_14
kvn
parents:
827
diff
changeset
|
4405 |
|
acba6af809c8
6840775: Multiple JVM crashes seen with 1.6.0_10 through 1.6.0_14
kvn
parents:
827
diff
changeset
|
4406 const TypePtr* raw_adr_type = TypeRawPtr::BOTTOM; |
|
acba6af809c8
6840775: Multiple JVM crashes seen with 1.6.0_10 through 1.6.0_14
kvn
parents:
827
diff
changeset
|
4407 bool disjoint_bases = true; |
|
acba6af809c8
6840775: Multiple JVM crashes seen with 1.6.0_10 through 1.6.0_14
kvn
parents:
827
diff
changeset
|
4408 generate_unchecked_arraycopy(raw_adr_type, T_LONG, disjoint_bases, |
| 2324 | 4409 src, NULL, dest, NULL, countx, |
| 4410 /*dest_uninitialized*/true); | |
|
833
acba6af809c8
6840775: Multiple JVM crashes seen with 1.6.0_10 through 1.6.0_14
kvn
parents:
827
diff
changeset
|
4411 |
|
acba6af809c8
6840775: Multiple JVM crashes seen with 1.6.0_10 through 1.6.0_14
kvn
parents:
827
diff
changeset
|
4412 // If necessary, emit some card marks afterwards. (Non-arrays only.) |
|
acba6af809c8
6840775: Multiple JVM crashes seen with 1.6.0_10 through 1.6.0_14
kvn
parents:
827
diff
changeset
|
4413 if (card_mark) { |
|
acba6af809c8
6840775: Multiple JVM crashes seen with 1.6.0_10 through 1.6.0_14
kvn
parents:
827
diff
changeset
|
4414 assert(!is_array, ""); |
|
acba6af809c8
6840775: Multiple JVM crashes seen with 1.6.0_10 through 1.6.0_14
kvn
parents:
827
diff
changeset
|
4415 // Put in store barrier for any and all oops we are sticking |
|
acba6af809c8
6840775: Multiple JVM crashes seen with 1.6.0_10 through 1.6.0_14
kvn
parents:
827
diff
changeset
|
4416 // into this object. (We could avoid this if we could prove |
|
acba6af809c8
6840775: Multiple JVM crashes seen with 1.6.0_10 through 1.6.0_14
kvn
parents:
827
diff
changeset
|
4417 // that the object type contains no oop fields at all.) |
|
acba6af809c8
6840775: Multiple JVM crashes seen with 1.6.0_10 through 1.6.0_14
kvn
parents:
827
diff
changeset
|
4418 Node* no_particular_value = NULL; |
|
acba6af809c8
6840775: Multiple JVM crashes seen with 1.6.0_10 through 1.6.0_14
kvn
parents:
827
diff
changeset
|
4419 Node* no_particular_field = NULL; |
|
acba6af809c8
6840775: Multiple JVM crashes seen with 1.6.0_10 through 1.6.0_14
kvn
parents:
827
diff
changeset
|
4420 int raw_adr_idx = Compile::AliasIdxRaw; |
|
acba6af809c8
6840775: Multiple JVM crashes seen with 1.6.0_10 through 1.6.0_14
kvn
parents:
827
diff
changeset
|
4421 post_barrier(control(), |
|
acba6af809c8
6840775: Multiple JVM crashes seen with 1.6.0_10 through 1.6.0_14
kvn
parents:
827
diff
changeset
|
4422 memory(raw_adr_type), |
|
958
c7e94e8fff43
6880053: assert(alloc_obj->as_CheckCastPP()->type() != TypeInstPtr::NOTNULL)
kvn
parents:
950
diff
changeset
|
4423 alloc_obj, |
|
833
acba6af809c8
6840775: Multiple JVM crashes seen with 1.6.0_10 through 1.6.0_14
kvn
parents:
827
diff
changeset
|
4424 no_particular_field, |
|
acba6af809c8
6840775: Multiple JVM crashes seen with 1.6.0_10 through 1.6.0_14
kvn
parents:
827
diff
changeset
|
4425 raw_adr_idx, |
|
acba6af809c8
6840775: Multiple JVM crashes seen with 1.6.0_10 through 1.6.0_14
kvn
parents:
827
diff
changeset
|
4426 no_particular_value, |
|
acba6af809c8
6840775: Multiple JVM crashes seen with 1.6.0_10 through 1.6.0_14
kvn
parents:
827
diff
changeset
|
4427 T_OBJECT, |
|
acba6af809c8
6840775: Multiple JVM crashes seen with 1.6.0_10 through 1.6.0_14
kvn
parents:
827
diff
changeset
|
4428 false); |
|
acba6af809c8
6840775: Multiple JVM crashes seen with 1.6.0_10 through 1.6.0_14
kvn
parents:
827
diff
changeset
|
4429 } |
|
acba6af809c8
6840775: Multiple JVM crashes seen with 1.6.0_10 through 1.6.0_14
kvn
parents:
827
diff
changeset
|
4430 |
|
958
c7e94e8fff43
6880053: assert(alloc_obj->as_CheckCastPP()->type() != TypeInstPtr::NOTNULL)
kvn
parents:
950
diff
changeset
|
4431 // Do not let reads from the cloned object float above the arraycopy. |
|
4763
1dc233a8c7fe
7121140: Allocation paths require explicit memory synchronization operations for RMO systems
roland
parents:
4762
diff
changeset
|
4432 if (alloc != NULL) { |
|
1dc233a8c7fe
7121140: Allocation paths require explicit memory synchronization operations for RMO systems
roland
parents:
4762
diff
changeset
|
4433 // Do not let stores that initialize this object be reordered with |
|
1dc233a8c7fe
7121140: Allocation paths require explicit memory synchronization operations for RMO systems
roland
parents:
4762
diff
changeset
|
4434 // a subsequent store that would make this object accessible by |
|
1dc233a8c7fe
7121140: Allocation paths require explicit memory synchronization operations for RMO systems
roland
parents:
4762
diff
changeset
|
4435 // other threads. |
|
1dc233a8c7fe
7121140: Allocation paths require explicit memory synchronization operations for RMO systems
roland
parents:
4762
diff
changeset
|
4436 // Record what AllocateNode this StoreStore protects so that |
|
1dc233a8c7fe
7121140: Allocation paths require explicit memory synchronization operations for RMO systems
roland
parents:
4762
diff
changeset
|
4437 // escape analysis can go from the MemBarStoreStoreNode to the |
|
1dc233a8c7fe
7121140: Allocation paths require explicit memory synchronization operations for RMO systems
roland
parents:
4762
diff
changeset
|
4438 // AllocateNode and eliminate the MemBarStoreStoreNode if possible |
|
1dc233a8c7fe
7121140: Allocation paths require explicit memory synchronization operations for RMO systems
roland
parents:
4762
diff
changeset
|
4439 // based on the escape status of the AllocateNode. |
|
1dc233a8c7fe
7121140: Allocation paths require explicit memory synchronization operations for RMO systems
roland
parents:
4762
diff
changeset
|
4440 insert_mem_bar(Op_MemBarStoreStore, alloc->proj_out(AllocateNode::RawAddress)); |
|
1dc233a8c7fe
7121140: Allocation paths require explicit memory synchronization operations for RMO systems
roland
parents:
4762
diff
changeset
|
4441 } else { |
|
1dc233a8c7fe
7121140: Allocation paths require explicit memory synchronization operations for RMO systems
roland
parents:
4762
diff
changeset
|
4442 insert_mem_bar(Op_MemBarCPUOrder); |
|
1dc233a8c7fe
7121140: Allocation paths require explicit memory synchronization operations for RMO systems
roland
parents:
4762
diff
changeset
|
4443 } |
|
833
acba6af809c8
6840775: Multiple JVM crashes seen with 1.6.0_10 through 1.6.0_14
kvn
parents:
827
diff
changeset
|
4444 } |
| 0 | 4445 |
| 4446 //------------------------inline_native_clone---------------------------- | |
|
7194
beebba0acc11
7172640: C2: instrinsic implementations in LibraryCallKit should use argument() instead of pop()
twisti
parents:
6894
diff
changeset
|
4447 // protected native Object java.lang.Object.clone(); |
|
beebba0acc11
7172640: C2: instrinsic implementations in LibraryCallKit should use argument() instead of pop()
twisti
parents:
6894
diff
changeset
|
4448 // |
| 0 | 4449 // Here are the simple edge cases: |
| 4450 // null receiver => normal trap | |
| 4451 // virtual and clone was overridden => slow path to out-of-line clone | |
| 4452 // not cloneable or finalizer => slow path to out-of-line Object.clone | |
| 4453 // | |
| 4454 // The general case has two steps, allocation and copying. | |
| 4455 // Allocation has two cases, and uses GraphKit::new_instance or new_array. | |
| 4456 // | |
| 4457 // Copying also has two cases, oop arrays and everything else. | |
| 4458 // Oop arrays use arrayof_oop_arraycopy (same as System.arraycopy). | |
| 4459 // Everything else uses the tight inline loop supplied by CopyArrayNode. | |
| 4460 // | |
| 4461 // These steps fold up nicely if and when the cloned object's klass | |
| 4462 // can be sharply typed as an object array, a type array, or an instance. | |
| 4463 // | |
| 4464 bool LibraryCallKit::inline_native_clone(bool is_virtual) { | |
|
902
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6868269: CompileTheWorld assertion failure introduced by the reexecute bit implementation
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|
4465 PhiNode* result_val; |
| 0 | 4466 |
|
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diff
changeset
|
4467 // Set the reexecute bit for the interpreter to reexecute |
|
beebba0acc11
7172640: C2: instrinsic implementations in LibraryCallKit should use argument() instead of pop()
twisti
parents:
6894
diff
changeset
|
4468 // the bytecode that invokes Object.clone if deoptimization happens. |
|
900
9987d9d5eb0e
6833129: specjvm98 fails with NullPointerException in the compiler with -XX:DeoptimizeALot
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diff
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|
4469 { PreserveReexecuteState preexecs(this); |
|
902
fc2281ddce3c
6868269: CompileTheWorld assertion failure introduced by the reexecute bit implementation
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diff
changeset
|
4470 jvms()->set_should_reexecute(true); |
|
fc2281ddce3c
6868269: CompileTheWorld assertion failure introduced by the reexecute bit implementation
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diff
changeset
|
4471 |
|
7194
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twisti
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6894
diff
changeset
|
4472 Node* obj = null_check_receiver(); |
|
902
fc2281ddce3c
6868269: CompileTheWorld assertion failure introduced by the reexecute bit implementation
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diff
changeset
|
4473 if (stopped()) return true; |
|
fc2281ddce3c
6868269: CompileTheWorld assertion failure introduced by the reexecute bit implementation
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diff
changeset
|
4474 |
|
fc2281ddce3c
6868269: CompileTheWorld assertion failure introduced by the reexecute bit implementation
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diff
changeset
|
4475 Node* obj_klass = load_object_klass(obj); |
|
fc2281ddce3c
6868269: CompileTheWorld assertion failure introduced by the reexecute bit implementation
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900
diff
changeset
|
4476 const TypeKlassPtr* tklass = _gvn.type(obj_klass)->isa_klassptr(); |
|
fc2281ddce3c
6868269: CompileTheWorld assertion failure introduced by the reexecute bit implementation
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diff
changeset
|
4477 const TypeOopPtr* toop = ((tklass != NULL) |
|
fc2281ddce3c
6868269: CompileTheWorld assertion failure introduced by the reexecute bit implementation
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diff
changeset
|
4478 ? tklass->as_instance_type() |
|
fc2281ddce3c
6868269: CompileTheWorld assertion failure introduced by the reexecute bit implementation
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diff
changeset
|
4479 : TypeInstPtr::NOTNULL); |
|
fc2281ddce3c
6868269: CompileTheWorld assertion failure introduced by the reexecute bit implementation
cfang
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diff
changeset
|
4480 |
|
fc2281ddce3c
6868269: CompileTheWorld assertion failure introduced by the reexecute bit implementation
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diff
changeset
|
4481 // Conservatively insert a memory barrier on all memory slices. |
|
fc2281ddce3c
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diff
changeset
|
4482 // Do not let writes into the original float below the clone. |
|
fc2281ddce3c
6868269: CompileTheWorld assertion failure introduced by the reexecute bit implementation
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diff
changeset
|
4483 insert_mem_bar(Op_MemBarCPUOrder); |
|
fc2281ddce3c
6868269: CompileTheWorld assertion failure introduced by the reexecute bit implementation
cfang
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diff
changeset
|
4484 |
|
fc2281ddce3c
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cfang
parents:
900
diff
changeset
|
4485 // paths into result_reg: |
|
fc2281ddce3c
6868269: CompileTheWorld assertion failure introduced by the reexecute bit implementation
cfang
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diff
changeset
|
4486 enum { |
|
fc2281ddce3c
6868269: CompileTheWorld assertion failure introduced by the reexecute bit implementation
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diff
changeset
|
4487 _slow_path = 1, // out-of-line call to clone method (virtual or not) |
|
fc2281ddce3c
6868269: CompileTheWorld assertion failure introduced by the reexecute bit implementation
cfang
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diff
changeset
|
4488 _objArray_path, // plain array allocation, plus arrayof_oop_arraycopy |
|
fc2281ddce3c
6868269: CompileTheWorld assertion failure introduced by the reexecute bit implementation
cfang
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diff
changeset
|
4489 _array_path, // plain array allocation, plus arrayof_long_arraycopy |
|
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cfang
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diff
changeset
|
4490 _instance_path, // plain instance allocation, plus arrayof_long_arraycopy |
|
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6868269: CompileTheWorld assertion failure introduced by the reexecute bit implementation
cfang
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diff
changeset
|
4491 PATH_LIMIT |
|
fc2281ddce3c
6868269: CompileTheWorld assertion failure introduced by the reexecute bit implementation
cfang
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diff
changeset
|
4492 }; |
|
6804
e626685e9f6c
7193318: C2: remove number of inputs requirement from Node's new operator
kvn
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6795
diff
changeset
|
4493 RegionNode* result_reg = new(C) RegionNode(PATH_LIMIT); |
|
e626685e9f6c
7193318: C2: remove number of inputs requirement from Node's new operator
kvn
parents:
6795
diff
changeset
|
4494 result_val = new(C) PhiNode(result_reg, |
|
e626685e9f6c
7193318: C2: remove number of inputs requirement from Node's new operator
kvn
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6795
diff
changeset
|
4495 TypeInstPtr::NOTNULL); |
|
e626685e9f6c
7193318: C2: remove number of inputs requirement from Node's new operator
kvn
parents:
6795
diff
changeset
|
4496 PhiNode* result_i_o = new(C) PhiNode(result_reg, Type::ABIO); |
|
e626685e9f6c
7193318: C2: remove number of inputs requirement from Node's new operator
kvn
parents:
6795
diff
changeset
|
4497 PhiNode* result_mem = new(C) PhiNode(result_reg, Type::MEMORY, |
|
e626685e9f6c
7193318: C2: remove number of inputs requirement from Node's new operator
kvn
parents:
6795
diff
changeset
|
4498 TypePtr::BOTTOM); |
|
902
fc2281ddce3c
6868269: CompileTheWorld assertion failure introduced by the reexecute bit implementation
cfang
parents:
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diff
changeset
|
4499 record_for_igvn(result_reg); |
|
fc2281ddce3c
6868269: CompileTheWorld assertion failure introduced by the reexecute bit implementation
cfang
parents:
900
diff
changeset
|
4500 |
|
fc2281ddce3c
6868269: CompileTheWorld assertion failure introduced by the reexecute bit implementation
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diff
changeset
|
4501 const TypePtr* raw_adr_type = TypeRawPtr::BOTTOM; |
|
fc2281ddce3c
6868269: CompileTheWorld assertion failure introduced by the reexecute bit implementation
cfang
parents:
900
diff
changeset
|
4502 int raw_adr_idx = Compile::AliasIdxRaw; |
|
900
9987d9d5eb0e
6833129: specjvm98 fails with NullPointerException in the compiler with -XX:DeoptimizeALot
cfang
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diff
changeset
|
4503 |
|
9987d9d5eb0e
6833129: specjvm98 fails with NullPointerException in the compiler with -XX:DeoptimizeALot
cfang
parents:
896
diff
changeset
|
4504 Node* array_ctl = generate_array_guard(obj_klass, (RegionNode*)NULL); |
|
9987d9d5eb0e
6833129: specjvm98 fails with NullPointerException in the compiler with -XX:DeoptimizeALot
cfang
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diff
changeset
|
4505 if (array_ctl != NULL) { |
|
9987d9d5eb0e
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cfang
parents:
896
diff
changeset
|
4506 // It's an array. |
|
9987d9d5eb0e
6833129: specjvm98 fails with NullPointerException in the compiler with -XX:DeoptimizeALot
cfang
parents:
896
diff
changeset
|
4507 PreserveJVMState pjvms(this); |
|
9987d9d5eb0e
6833129: specjvm98 fails with NullPointerException in the compiler with -XX:DeoptimizeALot
cfang
parents:
896
diff
changeset
|
4508 set_control(array_ctl); |
|
9987d9d5eb0e
6833129: specjvm98 fails with NullPointerException in the compiler with -XX:DeoptimizeALot
cfang
parents:
896
diff
changeset
|
4509 Node* obj_length = load_array_length(obj); |
|
9987d9d5eb0e
6833129: specjvm98 fails with NullPointerException in the compiler with -XX:DeoptimizeALot
cfang
parents:
896
diff
changeset
|
4510 Node* obj_size = NULL; |
|
7194
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twisti
parents:
6894
diff
changeset
|
4511 Node* alloc_obj = new_array(obj_klass, obj_length, 0, &obj_size); // no arguments to push |
|
900
9987d9d5eb0e
6833129: specjvm98 fails with NullPointerException in the compiler with -XX:DeoptimizeALot
cfang
parents:
896
diff
changeset
|
4512 |
|
9987d9d5eb0e
6833129: specjvm98 fails with NullPointerException in the compiler with -XX:DeoptimizeALot
cfang
parents:
896
diff
changeset
|
4513 if (!use_ReduceInitialCardMarks()) { |
|
9987d9d5eb0e
6833129: specjvm98 fails with NullPointerException in the compiler with -XX:DeoptimizeALot
cfang
parents:
896
diff
changeset
|
4514 // If it is an oop array, it requires very special treatment, |
|
9987d9d5eb0e
6833129: specjvm98 fails with NullPointerException in the compiler with -XX:DeoptimizeALot
cfang
parents:
896
diff
changeset
|
4515 // because card marking is required on each card of the array. |
|
9987d9d5eb0e
6833129: specjvm98 fails with NullPointerException in the compiler with -XX:DeoptimizeALot
cfang
parents:
896
diff
changeset
|
4516 Node* is_obja = generate_objArray_guard(obj_klass, (RegionNode*)NULL); |
|
9987d9d5eb0e
6833129: specjvm98 fails with NullPointerException in the compiler with -XX:DeoptimizeALot
cfang
parents:
896
diff
changeset
|
4517 if (is_obja != NULL) { |
|
9987d9d5eb0e
6833129: specjvm98 fails with NullPointerException in the compiler with -XX:DeoptimizeALot
cfang
parents:
896
diff
changeset
|
4518 PreserveJVMState pjvms2(this); |
|
9987d9d5eb0e
6833129: specjvm98 fails with NullPointerException in the compiler with -XX:DeoptimizeALot
cfang
parents:
896
diff
changeset
|
4519 set_control(is_obja); |
|
9987d9d5eb0e
6833129: specjvm98 fails with NullPointerException in the compiler with -XX:DeoptimizeALot
cfang
parents:
896
diff
changeset
|
4520 // Generate a direct call to the right arraycopy function(s). |
|
9987d9d5eb0e
6833129: specjvm98 fails with NullPointerException in the compiler with -XX:DeoptimizeALot
cfang
parents:
896
diff
changeset
|
4521 bool disjoint_bases = true; |
|
9987d9d5eb0e
6833129: specjvm98 fails with NullPointerException in the compiler with -XX:DeoptimizeALot
cfang
parents:
896
diff
changeset
|
4522 bool length_never_negative = true; |
|
9987d9d5eb0e
6833129: specjvm98 fails with NullPointerException in the compiler with -XX:DeoptimizeALot
cfang
parents:
896
diff
changeset
|
4523 generate_arraycopy(TypeAryPtr::OOPS, T_OBJECT, |
|
9987d9d5eb0e
6833129: specjvm98 fails with NullPointerException in the compiler with -XX:DeoptimizeALot
cfang
parents:
896
diff
changeset
|
4524 obj, intcon(0), alloc_obj, intcon(0), |
|
9987d9d5eb0e
6833129: specjvm98 fails with NullPointerException in the compiler with -XX:DeoptimizeALot
cfang
parents:
896
diff
changeset
|
4525 obj_length, |
|
9987d9d5eb0e
6833129: specjvm98 fails with NullPointerException in the compiler with -XX:DeoptimizeALot
cfang
parents:
896
diff
changeset
|
4526 disjoint_bases, length_never_negative); |
|
9987d9d5eb0e
6833129: specjvm98 fails with NullPointerException in the compiler with -XX:DeoptimizeALot
cfang
parents:
896
diff
changeset
|
4527 result_reg->init_req(_objArray_path, control()); |
|
9987d9d5eb0e
6833129: specjvm98 fails with NullPointerException in the compiler with -XX:DeoptimizeALot
cfang
parents:
896
diff
changeset
|
4528 result_val->init_req(_objArray_path, alloc_obj); |
|
9987d9d5eb0e
6833129: specjvm98 fails with NullPointerException in the compiler with -XX:DeoptimizeALot
cfang
parents:
896
diff
changeset
|
4529 result_i_o ->set_req(_objArray_path, i_o()); |
|
9987d9d5eb0e
6833129: specjvm98 fails with NullPointerException in the compiler with -XX:DeoptimizeALot
cfang
parents:
896
diff
changeset
|
4530 result_mem ->set_req(_objArray_path, reset_memory()); |
|
9987d9d5eb0e
6833129: specjvm98 fails with NullPointerException in the compiler with -XX:DeoptimizeALot
cfang
parents:
896
diff
changeset
|
4531 } |
|
9987d9d5eb0e
6833129: specjvm98 fails with NullPointerException in the compiler with -XX:DeoptimizeALot
cfang
parents:
896
diff
changeset
|
4532 } |
|
9987d9d5eb0e
6833129: specjvm98 fails with NullPointerException in the compiler with -XX:DeoptimizeALot
cfang
parents:
896
diff
changeset
|
4533 // Otherwise, there are no card marks to worry about. |
|
1027
39b01ab7035a
6888898: CMS: ReduceInitialCardMarks unsafe in the presence of cms precleaning
ysr
parents:
986
diff
changeset
|
4534 // (We can dispense with card marks if we know the allocation |
|
39b01ab7035a
6888898: CMS: ReduceInitialCardMarks unsafe in the presence of cms precleaning
ysr
parents:
986
diff
changeset
|
4535 // comes out of eden (TLAB)... In fact, ReduceInitialCardMarks |
|
39b01ab7035a
6888898: CMS: ReduceInitialCardMarks unsafe in the presence of cms precleaning
ysr
parents:
986
diff
changeset
|
4536 // causes the non-eden paths to take compensating steps to |
|
39b01ab7035a
6888898: CMS: ReduceInitialCardMarks unsafe in the presence of cms precleaning
ysr
parents:
986
diff
changeset
|
4537 // simulate a fresh allocation, so that no further |
|
39b01ab7035a
6888898: CMS: ReduceInitialCardMarks unsafe in the presence of cms precleaning
ysr
parents:
986
diff
changeset
|
4538 // card marks are required in compiled code to initialize |
|
39b01ab7035a
6888898: CMS: ReduceInitialCardMarks unsafe in the presence of cms precleaning
ysr
parents:
986
diff
changeset
|
4539 // the object.) |
|
900
9987d9d5eb0e
6833129: specjvm98 fails with NullPointerException in the compiler with -XX:DeoptimizeALot
cfang
parents:
896
diff
changeset
|
4540 |
|
9987d9d5eb0e
6833129: specjvm98 fails with NullPointerException in the compiler with -XX:DeoptimizeALot
cfang
parents:
896
diff
changeset
|
4541 if (!stopped()) { |
|
9987d9d5eb0e
6833129: specjvm98 fails with NullPointerException in the compiler with -XX:DeoptimizeALot
cfang
parents:
896
diff
changeset
|
4542 copy_to_clone(obj, alloc_obj, obj_size, true, false); |
|
9987d9d5eb0e
6833129: specjvm98 fails with NullPointerException in the compiler with -XX:DeoptimizeALot
cfang
parents:
896
diff
changeset
|
4543 |
|
9987d9d5eb0e
6833129: specjvm98 fails with NullPointerException in the compiler with -XX:DeoptimizeALot
cfang
parents:
896
diff
changeset
|
4544 // Present the results of the copy. |
|
9987d9d5eb0e
6833129: specjvm98 fails with NullPointerException in the compiler with -XX:DeoptimizeALot
cfang
parents:
896
diff
changeset
|
4545 result_reg->init_req(_array_path, control()); |
|
9987d9d5eb0e
6833129: specjvm98 fails with NullPointerException in the compiler with -XX:DeoptimizeALot
cfang
parents:
896
diff
changeset
|
4546 result_val->init_req(_array_path, alloc_obj); |
|
9987d9d5eb0e
6833129: specjvm98 fails with NullPointerException in the compiler with -XX:DeoptimizeALot
cfang
parents:
896
diff
changeset
|
4547 result_i_o ->set_req(_array_path, i_o()); |
|
9987d9d5eb0e
6833129: specjvm98 fails with NullPointerException in the compiler with -XX:DeoptimizeALot
cfang
parents:
896
diff
changeset
|
4548 result_mem ->set_req(_array_path, reset_memory()); |
| 0 | 4549 } |
| 4550 } | |
|
900
9987d9d5eb0e
6833129: specjvm98 fails with NullPointerException in the compiler with -XX:DeoptimizeALot
cfang
parents:
896
diff
changeset
|
4551 |
|
9987d9d5eb0e
6833129: specjvm98 fails with NullPointerException in the compiler with -XX:DeoptimizeALot
cfang
parents:
896
diff
changeset
|
4552 // We only go to the instance fast case code if we pass a number of guards. |
|
9987d9d5eb0e
6833129: specjvm98 fails with NullPointerException in the compiler with -XX:DeoptimizeALot
cfang
parents:
896
diff
changeset
|
4553 // The paths which do not pass are accumulated in the slow_region. |
|
6804
e626685e9f6c
7193318: C2: remove number of inputs requirement from Node's new operator
kvn
parents:
6795
diff
changeset
|
4554 RegionNode* slow_region = new (C) RegionNode(1); |
|
900
9987d9d5eb0e
6833129: specjvm98 fails with NullPointerException in the compiler with -XX:DeoptimizeALot
cfang
parents:
896
diff
changeset
|
4555 record_for_igvn(slow_region); |
|
9987d9d5eb0e
6833129: specjvm98 fails with NullPointerException in the compiler with -XX:DeoptimizeALot
cfang
parents:
896
diff
changeset
|
4556 if (!stopped()) { |
|
9987d9d5eb0e
6833129: specjvm98 fails with NullPointerException in the compiler with -XX:DeoptimizeALot
cfang
parents:
896
diff
changeset
|
4557 // It's an instance (we did array above). Make the slow-path tests. |
|
9987d9d5eb0e
6833129: specjvm98 fails with NullPointerException in the compiler with -XX:DeoptimizeALot
cfang
parents:
896
diff
changeset
|
4558 // If this is a virtual call, we generate a funny guard. We grab |
|
9987d9d5eb0e
6833129: specjvm98 fails with NullPointerException in the compiler with -XX:DeoptimizeALot
cfang
parents:
896
diff
changeset
|
4559 // the vtable entry corresponding to clone() from the target object. |
|
9987d9d5eb0e
6833129: specjvm98 fails with NullPointerException in the compiler with -XX:DeoptimizeALot
cfang
parents:
896
diff
changeset
|
4560 // If the target method which we are calling happens to be the |
|
9987d9d5eb0e
6833129: specjvm98 fails with NullPointerException in the compiler with -XX:DeoptimizeALot
cfang
parents:
896
diff
changeset
|
4561 // Object clone() method, we pass the guard. We do not need this |
|
9987d9d5eb0e
6833129: specjvm98 fails with NullPointerException in the compiler with -XX:DeoptimizeALot
cfang
parents:
896
diff
changeset
|
4562 // guard for non-virtual calls; the caller is known to be the native |
|
9987d9d5eb0e
6833129: specjvm98 fails with NullPointerException in the compiler with -XX:DeoptimizeALot
cfang
parents:
896
diff
changeset
|
4563 // Object clone(). |
|
9987d9d5eb0e
6833129: specjvm98 fails with NullPointerException in the compiler with -XX:DeoptimizeALot
cfang
parents:
896
diff
changeset
|
4564 if (is_virtual) { |
|
9987d9d5eb0e
6833129: specjvm98 fails with NullPointerException in the compiler with -XX:DeoptimizeALot
cfang
parents:
896
diff
changeset
|
4565 generate_virtual_guard(obj_klass, slow_region); |
|
9987d9d5eb0e
6833129: specjvm98 fails with NullPointerException in the compiler with -XX:DeoptimizeALot
cfang
parents:
896
diff
changeset
|
4566 } |
|
9987d9d5eb0e
6833129: specjvm98 fails with NullPointerException in the compiler with -XX:DeoptimizeALot
cfang
parents:
896
diff
changeset
|
4567 |
|
9987d9d5eb0e
6833129: specjvm98 fails with NullPointerException in the compiler with -XX:DeoptimizeALot
cfang
parents:
896
diff
changeset
|
4568 // The object must be cloneable and must not have a finalizer. |
|
9987d9d5eb0e
6833129: specjvm98 fails with NullPointerException in the compiler with -XX:DeoptimizeALot
cfang
parents:
896
diff
changeset
|
4569 // Both of these conditions may be checked in a single test. |
|
9987d9d5eb0e
6833129: specjvm98 fails with NullPointerException in the compiler with -XX:DeoptimizeALot
cfang
parents:
896
diff
changeset
|
4570 // We could optimize the cloneable test further, but we don't care. |
|
9987d9d5eb0e
6833129: specjvm98 fails with NullPointerException in the compiler with -XX:DeoptimizeALot
cfang
parents:
896
diff
changeset
|
4571 generate_access_flags_guard(obj_klass, |
|
9987d9d5eb0e
6833129: specjvm98 fails with NullPointerException in the compiler with -XX:DeoptimizeALot
cfang
parents:
896
diff
changeset
|
4572 // Test both conditions: |
|
9987d9d5eb0e
6833129: specjvm98 fails with NullPointerException in the compiler with -XX:DeoptimizeALot
cfang
parents:
896
diff
changeset
|
4573 JVM_ACC_IS_CLONEABLE | JVM_ACC_HAS_FINALIZER, |
|
9987d9d5eb0e
6833129: specjvm98 fails with NullPointerException in the compiler with -XX:DeoptimizeALot
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|
4574 // Must be cloneable but not finalizer: |
|
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diff
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|
4575 JVM_ACC_IS_CLONEABLE, |
|
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6833129: specjvm98 fails with NullPointerException in the compiler with -XX:DeoptimizeALot
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|
4576 slow_region); |
|
9987d9d5eb0e
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|
4577 } |
|
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|
4578 |
|
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|
4579 if (!stopped()) { |
|
900
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|
4580 // It's an instance, and it passed the slow-path tests. |
|
9987d9d5eb0e
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|
4581 PreserveJVMState pjvms(this); |
|
9987d9d5eb0e
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|
4582 Node* obj_size = NULL; |
|
17990
00c8a1255912
8033626: assert(ex_map->jvms()->same_calls_as(_exceptions->jvms())) failed: all collected exceptions must come from the same place
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changeset
|
4583 // Need to deoptimize on exception from allocation since Object.clone intrinsic |
|
00c8a1255912
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|
4584 // is reexecuted if deoptimization occurs and there could be problems when merging |
|
00c8a1255912
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17968
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|
4585 // exception state between multiple Object.clone versions (reexecute=true vs reexecute=false). |
|
00c8a1255912
8033626: assert(ex_map->jvms()->same_calls_as(_exceptions->jvms())) failed: all collected exceptions must come from the same place
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|
4586 Node* alloc_obj = new_instance(obj_klass, NULL, &obj_size, /*deoptimize_on_exception=*/true); |
|
900
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|
4587 |
|
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|
4588 copy_to_clone(obj, alloc_obj, obj_size, false, !use_ReduceInitialCardMarks()); |
|
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|
4589 |
|
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diff
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|
4590 // Present the results of the slow call. |
|
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6833129: specjvm98 fails with NullPointerException in the compiler with -XX:DeoptimizeALot
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diff
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|
4591 result_reg->init_req(_instance_path, control()); |
|
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|
4592 result_val->init_req(_instance_path, alloc_obj); |
|
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|
4593 result_i_o ->set_req(_instance_path, i_o()); |
|
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|
4594 result_mem ->set_req(_instance_path, reset_memory()); |
| 0 | 4595 } |
| 4596 | |
|
900
9987d9d5eb0e
6833129: specjvm98 fails with NullPointerException in the compiler with -XX:DeoptimizeALot
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|
4597 // Generate code for the slow case. We make a call to clone(). |
|
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|
4598 set_control(_gvn.transform(slow_region)); |
|
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|
4599 if (!stopped()) { |
|
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|
4600 PreserveJVMState pjvms(this); |
|
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|
4601 CallJavaNode* slow_call = generate_method_call(vmIntrinsics::_clone, is_virtual); |
|
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6833129: specjvm98 fails with NullPointerException in the compiler with -XX:DeoptimizeALot
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|
4602 Node* slow_result = set_results_for_java_call(slow_call); |
|
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6833129: specjvm98 fails with NullPointerException in the compiler with -XX:DeoptimizeALot
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|
4603 // this->control() comes from set_results_for_java_call |
|
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|
4604 result_reg->init_req(_slow_path, control()); |
|
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|
4605 result_val->init_req(_slow_path, slow_result); |
|
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diff
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|
4606 result_i_o ->set_req(_slow_path, i_o()); |
|
9987d9d5eb0e
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|
4607 result_mem ->set_req(_slow_path, reset_memory()); |
|
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diff
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|
4608 } |
|
902
fc2281ddce3c
6868269: CompileTheWorld assertion failure introduced by the reexecute bit implementation
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900
diff
changeset
|
4609 |
|
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6868269: CompileTheWorld assertion failure introduced by the reexecute bit implementation
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changeset
|
4610 // Return the combined state. |
|
11080
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
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10405
diff
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|
4611 set_control( _gvn.transform(result_reg)); |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
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|
4612 set_i_o( _gvn.transform(result_i_o)); |
|
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7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
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|
4613 set_all_memory( _gvn.transform(result_mem)); |
|
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|
4614 } // original reexecute is set back here |
|
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|
4615 |
|
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|
4616 set_result(_gvn.transform(result_val)); |
| 0 | 4617 return true; |
| 4618 } | |
| 4619 | |
| 4620 //------------------------------basictype2arraycopy---------------------------- | |
| 4621 address LibraryCallKit::basictype2arraycopy(BasicType t, | |
| 4622 Node* src_offset, | |
| 4623 Node* dest_offset, | |
| 4624 bool disjoint_bases, | |
| 2324 | 4625 const char* &name, |
| 4626 bool dest_uninitialized) { | |
| 0 | 4627 const TypeInt* src_offset_inttype = gvn().find_int_type(src_offset);; |
| 4628 const TypeInt* dest_offset_inttype = gvn().find_int_type(dest_offset);; | |
| 4629 | |
| 4630 bool aligned = false; | |
| 4631 bool disjoint = disjoint_bases; | |
| 4632 | |
| 4633 // if the offsets are the same, we can treat the memory regions as | |
| 4634 // disjoint, because either the memory regions are in different arrays, | |
| 4635 // or they are identical (which we can treat as disjoint.) We can also | |
| 4636 // treat a copy with a destination index less that the source index | |
| 4637 // as disjoint since a low->high copy will work correctly in this case. | |
| 4638 if (src_offset_inttype != NULL && src_offset_inttype->is_con() && | |
| 4639 dest_offset_inttype != NULL && dest_offset_inttype->is_con()) { | |
| 4640 // both indices are constants | |
| 4641 int s_offs = src_offset_inttype->get_con(); | |
| 4642 int d_offs = dest_offset_inttype->get_con(); | |
|
29
d5fc211aea19
6633953: type2aelembytes{T_ADDRESS} should be 8 bytes in 64 bit VM
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0
diff
changeset
|
4643 int element_size = type2aelembytes(t); |
| 0 | 4644 aligned = ((arrayOopDesc::base_offset_in_bytes(t) + s_offs * element_size) % HeapWordSize == 0) && |
| 4645 ((arrayOopDesc::base_offset_in_bytes(t) + d_offs * element_size) % HeapWordSize == 0); | |
| 4646 if (s_offs >= d_offs) disjoint = true; | |
| 4647 } else if (src_offset == dest_offset && src_offset != NULL) { | |
| 4648 // This can occur if the offsets are identical non-constants. | |
| 4649 disjoint = true; | |
| 4650 } | |
| 4651 | |
| 2446 | 4652 return StubRoutines::select_arraycopy_function(t, aligned, disjoint, name, dest_uninitialized); |
| 0 | 4653 } |
| 4654 | |
| 4655 | |
| 4656 //------------------------------inline_arraycopy----------------------- | |
|
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|
4657 // public static native void java.lang.System.arraycopy(Object src, int srcPos, |
|
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|
4658 // Object dest, int destPos, |
|
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7172640: C2: instrinsic implementations in LibraryCallKit should use argument() instead of pop()
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diff
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|
4659 // int length); |
| 0 | 4660 bool LibraryCallKit::inline_arraycopy() { |
|
7194
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|
4661 // Get the arguments. |
|
beebba0acc11
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diff
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|
4662 Node* src = argument(0); // type: oop |
|
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7172640: C2: instrinsic implementations in LibraryCallKit should use argument() instead of pop()
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|
4663 Node* src_offset = argument(1); // type: int |
|
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|
4664 Node* dest = argument(2); // type: oop |
|
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|
4665 Node* dest_offset = argument(3); // type: int |
|
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7172640: C2: instrinsic implementations in LibraryCallKit should use argument() instead of pop()
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|
4666 Node* length = argument(4); // type: int |
| 0 | 4667 |
| 4668 // Compile time checks. If any of these checks cannot be verified at compile time, | |
| 4669 // we do not make a fast path for this call. Instead, we let the call remain as it | |
| 4670 // is. The checks we choose to mandate at compile time are: | |
| 4671 // | |
| 4672 // (1) src and dest are arrays. | |
|
7194
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6894
diff
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|
4673 const Type* src_type = src->Value(&_gvn); |
| 0 | 4674 const Type* dest_type = dest->Value(&_gvn); |
|
7194
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diff
changeset
|
4675 const TypeAryPtr* top_src = src_type->isa_aryptr(); |
| 0 | 4676 const TypeAryPtr* top_dest = dest_type->isa_aryptr(); |
| 12966 | 4677 |
| 4678 // Do we have the type of src? | |
| 4679 bool has_src = (top_src != NULL && top_src->klass() != NULL); | |
| 4680 // Do we have the type of dest? | |
| 4681 bool has_dest = (top_dest != NULL && top_dest->klass() != NULL); | |
| 4682 // Is the type for src from speculation? | |
| 4683 bool src_spec = false; | |
| 4684 // Is the type for dest from speculation? | |
| 4685 bool dest_spec = false; | |
| 4686 | |
| 4687 if (!has_src || !has_dest) { | |
| 4688 // We don't have sufficient type information, let's see if | |
| 4689 // speculative types can help. We need to have types for both src | |
| 4690 // and dest so that it pays off. | |
| 4691 | |
| 4692 // Do we already have or could we have type information for src | |
| 4693 bool could_have_src = has_src; | |
| 4694 // Do we already have or could we have type information for dest | |
| 4695 bool could_have_dest = has_dest; | |
| 4696 | |
| 4697 ciKlass* src_k = NULL; | |
| 4698 if (!has_src) { | |
| 4699 src_k = src_type->speculative_type(); | |
| 4700 if (src_k != NULL && src_k->is_array_klass()) { | |
| 4701 could_have_src = true; | |
| 4702 } | |
| 4703 } | |
| 4704 | |
| 4705 ciKlass* dest_k = NULL; | |
| 4706 if (!has_dest) { | |
| 4707 dest_k = dest_type->speculative_type(); | |
| 4708 if (dest_k != NULL && dest_k->is_array_klass()) { | |
| 4709 could_have_dest = true; | |
| 4710 } | |
| 4711 } | |
| 4712 | |
| 4713 if (could_have_src && could_have_dest) { | |
| 4714 // This is going to pay off so emit the required guards | |
| 4715 if (!has_src) { | |
| 4716 src = maybe_cast_profiled_obj(src, src_k); | |
| 4717 src_type = _gvn.type(src); | |
| 4718 top_src = src_type->isa_aryptr(); | |
| 4719 has_src = (top_src != NULL && top_src->klass() != NULL); | |
| 4720 src_spec = true; | |
| 4721 } | |
| 4722 if (!has_dest) { | |
| 4723 dest = maybe_cast_profiled_obj(dest, dest_k); | |
| 4724 dest_type = _gvn.type(dest); | |
| 4725 top_dest = dest_type->isa_aryptr(); | |
| 4726 has_dest = (top_dest != NULL && top_dest->klass() != NULL); | |
| 4727 dest_spec = true; | |
| 4728 } | |
| 4729 } | |
| 4730 } | |
| 4731 | |
| 4732 if (!has_src || !has_dest) { | |
| 0 | 4733 // Conservatively insert a memory barrier on all memory slices. |
| 4734 // Do not let writes into the source float below the arraycopy. | |
| 4735 insert_mem_bar(Op_MemBarCPUOrder); | |
| 4736 | |
| 4737 // Call StubRoutines::generic_arraycopy stub. | |
| 4738 generate_arraycopy(TypeRawPtr::BOTTOM, T_CONFLICT, | |
|
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acba6af809c8
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diff
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|
4739 src, src_offset, dest, dest_offset, length); |
| 0 | 4740 |
| 4741 // Do not let reads from the destination float above the arraycopy. | |
| 4742 // Since we cannot type the arrays, we don't know which slices | |
| 4743 // might be affected. We could restrict this barrier only to those | |
| 4744 // memory slices which pertain to array elements--but don't bother. | |
| 4745 if (!InsertMemBarAfterArraycopy) | |
| 4746 // (If InsertMemBarAfterArraycopy, there is already one in place.) | |
| 4747 insert_mem_bar(Op_MemBarCPUOrder); | |
| 4748 return true; | |
| 4749 } | |
| 4750 | |
| 4751 // (2) src and dest arrays must have elements of the same BasicType | |
| 4752 // Figure out the size and type of the elements we will be copying. | |
| 4753 BasicType src_elem = top_src->klass()->as_array_klass()->element_type()->basic_type(); | |
| 4754 BasicType dest_elem = top_dest->klass()->as_array_klass()->element_type()->basic_type(); | |
| 4755 if (src_elem == T_ARRAY) src_elem = T_OBJECT; | |
| 4756 if (dest_elem == T_ARRAY) dest_elem = T_OBJECT; | |
| 4757 | |
| 4758 if (src_elem != dest_elem || dest_elem == T_VOID) { | |
| 4759 // The component types are not the same or are not recognized. Punt. | |
| 4760 // (But, avoid the native method wrapper to JVM_ArrayCopy.) | |
| 4761 generate_slow_arraycopy(TypePtr::BOTTOM, | |
| 2324 | 4762 src, src_offset, dest, dest_offset, length, |
| 4763 /*dest_uninitialized*/false); | |
| 0 | 4764 return true; |
| 4765 } | |
| 4766 | |
| 12966 | 4767 if (src_elem == T_OBJECT) { |
| 4768 // If both arrays are object arrays then having the exact types | |
| 4769 // for both will remove the need for a subtype check at runtime | |
| 4770 // before the call and may make it possible to pick a faster copy | |
| 4771 // routine (without a subtype check on every element) | |
| 4772 // Do we have the exact type of src? | |
| 4773 bool could_have_src = src_spec; | |
| 4774 // Do we have the exact type of dest? | |
| 4775 bool could_have_dest = dest_spec; | |
| 4776 ciKlass* src_k = top_src->klass(); | |
| 4777 ciKlass* dest_k = top_dest->klass(); | |
| 4778 if (!src_spec) { | |
| 4779 src_k = src_type->speculative_type(); | |
| 4780 if (src_k != NULL && src_k->is_array_klass()) { | |
| 4781 could_have_src = true; | |
| 4782 } | |
| 4783 } | |
| 4784 if (!dest_spec) { | |
| 4785 dest_k = dest_type->speculative_type(); | |
| 4786 if (dest_k != NULL && dest_k->is_array_klass()) { | |
| 4787 could_have_dest = true; | |
| 4788 } | |
| 4789 } | |
| 4790 if (could_have_src && could_have_dest) { | |
| 4791 // If we can have both exact types, emit the missing guards | |
| 4792 if (could_have_src && !src_spec) { | |
| 4793 src = maybe_cast_profiled_obj(src, src_k); | |
| 4794 } | |
| 4795 if (could_have_dest && !dest_spec) { | |
| 4796 dest = maybe_cast_profiled_obj(dest, dest_k); | |
| 4797 } | |
| 4798 } | |
| 4799 } | |
| 4800 | |
| 0 | 4801 //--------------------------------------------------------------------------- |
| 4802 // We will make a fast path for this call to arraycopy. | |
| 4803 | |
| 4804 // We have the following tests left to perform: | |
| 4805 // | |
| 4806 // (3) src and dest must not be null. | |
| 4807 // (4) src_offset must not be negative. | |
| 4808 // (5) dest_offset must not be negative. | |
| 4809 // (6) length must not be negative. | |
| 4810 // (7) src_offset + length must not exceed length of src. | |
| 4811 // (8) dest_offset + length must not exceed length of dest. | |
| 4812 // (9) each element of an oop array must be assignable | |
| 4813 | |
|
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7193318: C2: remove number of inputs requirement from Node's new operator
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6795
diff
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|
4814 RegionNode* slow_region = new (C) RegionNode(1); |
| 0 | 4815 record_for_igvn(slow_region); |
| 4816 | |
| 4817 // (3) operands must not be null | |
|
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diff
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|
4818 // We currently perform our null checks with the null_check routine. |
| 0 | 4819 // This means that the null exceptions will be reported in the caller |
| 4820 // rather than (correctly) reported inside of the native arraycopy call. | |
| 4821 // This should be corrected, given time. We do our null check with the | |
| 4822 // stack pointer restored. | |
|
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diff
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|
4823 src = null_check(src, T_ARRAY); |
|
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6894
diff
changeset
|
4824 dest = null_check(dest, T_ARRAY); |
| 0 | 4825 |
| 4826 // (4) src_offset must not be negative. | |
| 4827 generate_negative_guard(src_offset, slow_region); | |
| 4828 | |
| 4829 // (5) dest_offset must not be negative. | |
| 4830 generate_negative_guard(dest_offset, slow_region); | |
| 4831 | |
| 4832 // (6) length must not be negative (moved to generate_arraycopy()). | |
| 4833 // generate_negative_guard(length, slow_region); | |
| 4834 | |
| 4835 // (7) src_offset + length must not exceed length of src. | |
| 4836 generate_limit_guard(src_offset, length, | |
| 4837 load_array_length(src), | |
| 4838 slow_region); | |
| 4839 | |
| 4840 // (8) dest_offset + length must not exceed length of dest. | |
| 4841 generate_limit_guard(dest_offset, length, | |
| 4842 load_array_length(dest), | |
| 4843 slow_region); | |
| 4844 | |
| 4845 // (9) each element of an oop array must be assignable | |
| 4846 // The generate_arraycopy subroutine checks this. | |
| 4847 | |
| 4848 // This is where the memory effects are placed: | |
| 4849 const TypePtr* adr_type = TypeAryPtr::get_array_body_type(dest_elem); | |
| 4850 generate_arraycopy(adr_type, dest_elem, | |
| 4851 src, src_offset, dest, dest_offset, length, | |
|
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|
4852 false, false, slow_region); |
| 0 | 4853 |
| 4854 return true; | |
| 4855 } | |
| 4856 | |
| 4857 //-----------------------------generate_arraycopy---------------------- | |
| 4858 // Generate an optimized call to arraycopy. | |
| 4859 // Caller must guard against non-arrays. | |
| 4860 // Caller must determine a common array basic-type for both arrays. | |
| 4861 // Caller must validate offsets against array bounds. | |
| 4862 // The slow_region has already collected guard failure paths | |
| 4863 // (such as out of bounds length or non-conformable array types). | |
| 4864 // The generated code has this shape, in general: | |
| 4865 // | |
| 4866 // if (length == 0) return // via zero_path | |
| 4867 // slowval = -1 | |
| 4868 // if (types unknown) { | |
| 4869 // slowval = call generic copy loop | |
| 4870 // if (slowval == 0) return // via checked_path | |
| 4871 // } else if (indexes in bounds) { | |
| 4872 // if ((is object array) && !(array type check)) { | |
| 4873 // slowval = call checked copy loop | |
| 4874 // if (slowval == 0) return // via checked_path | |
| 4875 // } else { | |
| 4876 // call bulk copy loop | |
| 4877 // return // via fast_path | |
| 4878 // } | |
| 4879 // } | |
| 4880 // // adjust params for remaining work: | |
| 4881 // if (slowval != -1) { | |
| 4882 // n = -1^slowval; src_offset += n; dest_offset += n; length -= n | |
| 4883 // } | |
| 4884 // slow_region: | |
| 4885 // call slow arraycopy(src, src_offset, dest, dest_offset, length) | |
| 4886 // return // via slow_call_path | |
| 4887 // | |
| 4888 // This routine is used from several intrinsics: System.arraycopy, | |
| 4889 // Object.clone (the array subcase), and Arrays.copyOf[Range]. | |
| 4890 // | |
| 4891 void | |
| 4892 LibraryCallKit::generate_arraycopy(const TypePtr* adr_type, | |
| 4893 BasicType basic_elem_type, | |
| 4894 Node* src, Node* src_offset, | |
| 4895 Node* dest, Node* dest_offset, | |
| 4896 Node* copy_length, | |
| 4897 bool disjoint_bases, | |
| 4898 bool length_never_negative, | |
| 4899 RegionNode* slow_region) { | |
| 4900 | |
| 4901 if (slow_region == NULL) { | |
|
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4902 slow_region = new(C) RegionNode(1); |
| 0 | 4903 record_for_igvn(slow_region); |
| 4904 } | |
| 4905 | |
| 4906 Node* original_dest = dest; | |
| 4907 AllocateArrayNode* alloc = NULL; // used for zeroing, if needed | |
| 2324 | 4908 bool dest_uninitialized = false; |
| 0 | 4909 |
| 4910 // See if this is the initialization of a newly-allocated array. | |
| 4911 // If so, we will take responsibility here for initializing it to zero. | |
| 4912 // (Note: Because tightly_coupled_allocation performs checks on the | |
| 4913 // out-edges of the dest, we need to avoid making derived pointers | |
| 4914 // from it until we have checked its uses.) | |
| 4915 if (ReduceBulkZeroing | |
| 4916 && !ZeroTLAB // pointless if already zeroed | |
| 4917 && basic_elem_type != T_CONFLICT // avoid corner case | |
| 4778 | 4918 && !src->eqv_uncast(dest) |
| 0 | 4919 && ((alloc = tightly_coupled_allocation(dest, slow_region)) |
| 4920 != NULL) | |
|
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4921 && _gvn.find_int_con(alloc->in(AllocateNode::ALength), 1) > 0 |
| 0 | 4922 && alloc->maybe_set_complete(&_gvn)) { |
| 4923 // "You break it, you buy it." | |
| 4924 InitializeNode* init = alloc->initialization(); | |
| 4925 assert(init->is_complete(), "we just did this"); | |
|
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4926 init->set_complete_with_arraycopy(); |
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4927 assert(dest->is_CheckCastPP(), "sanity"); |
| 0 | 4928 assert(dest->in(0)->in(0) == init, "dest pinned"); |
| 4929 adr_type = TypeRawPtr::BOTTOM; // all initializations are into raw memory | |
| 4930 // From this point on, every exit path is responsible for | |
| 4931 // initializing any non-copied parts of the object to zero. | |
| 2324 | 4932 // Also, if this flag is set we make sure that arraycopy interacts properly |
| 4933 // with G1, eliding pre-barriers. See CR 6627983. | |
| 4934 dest_uninitialized = true; | |
| 0 | 4935 } else { |
| 4936 // No zeroing elimination here. | |
| 4937 alloc = NULL; | |
| 4938 //original_dest = dest; | |
| 2324 | 4939 //dest_uninitialized = false; |
| 0 | 4940 } |
| 4941 | |
| 4942 // Results are placed here: | |
| 4943 enum { fast_path = 1, // normal void-returning assembly stub | |
| 4944 checked_path = 2, // special assembly stub with cleanup | |
| 4945 slow_call_path = 3, // something went wrong; call the VM | |
| 4946 zero_path = 4, // bypass when length of copy is zero | |
| 4947 bcopy_path = 5, // copy primitive array by 64-bit blocks | |
| 4948 PATH_LIMIT = 6 | |
| 4949 }; | |
|
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4950 RegionNode* result_region = new(C) RegionNode(PATH_LIMIT); |
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4951 PhiNode* result_i_o = new(C) PhiNode(result_region, Type::ABIO); |
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4952 PhiNode* result_memory = new(C) PhiNode(result_region, Type::MEMORY, adr_type); |
| 0 | 4953 record_for_igvn(result_region); |
| 4954 _gvn.set_type_bottom(result_i_o); | |
| 4955 _gvn.set_type_bottom(result_memory); | |
| 4956 assert(adr_type != TypePtr::BOTTOM, "must be RawMem or a T[] slice"); | |
| 4957 | |
| 4958 // The slow_control path: | |
| 4959 Node* slow_control; | |
| 4960 Node* slow_i_o = i_o(); | |
| 4961 Node* slow_mem = memory(adr_type); | |
| 4962 debug_only(slow_control = (Node*) badAddress); | |
| 4963 | |
| 4964 // Checked control path: | |
| 4965 Node* checked_control = top(); | |
| 4966 Node* checked_mem = NULL; | |
| 4967 Node* checked_i_o = NULL; | |
| 4968 Node* checked_value = NULL; | |
| 4969 | |
| 4970 if (basic_elem_type == T_CONFLICT) { | |
| 2324 | 4971 assert(!dest_uninitialized, ""); |
| 0 | 4972 Node* cv = generate_generic_arraycopy(adr_type, |
| 4973 src, src_offset, dest, dest_offset, | |
| 2324 | 4974 copy_length, dest_uninitialized); |
| 0 | 4975 if (cv == NULL) cv = intcon(-1); // failure (no stub available) |
| 4976 checked_control = control(); | |
| 4977 checked_i_o = i_o(); | |
| 4978 checked_mem = memory(adr_type); | |
| 4979 checked_value = cv; | |
| 4980 set_control(top()); // no fast path | |
| 4981 } | |
| 4982 | |
| 4983 Node* not_pos = generate_nonpositive_guard(copy_length, length_never_negative); | |
| 4984 if (not_pos != NULL) { | |
| 4985 PreserveJVMState pjvms(this); | |
| 4986 set_control(not_pos); | |
| 4987 | |
| 4988 // (6) length must not be negative. | |
| 4989 if (!length_never_negative) { | |
| 4990 generate_negative_guard(copy_length, slow_region); | |
| 4991 } | |
| 4992 | |
|
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|
4993 // copy_length is 0. |
| 2324 | 4994 if (!stopped() && dest_uninitialized) { |
| 0 | 4995 Node* dest_length = alloc->in(AllocateNode::ALength); |
| 4778 | 4996 if (copy_length->eqv_uncast(dest_length) |
| 0 | 4997 || _gvn.find_int_con(dest_length, 1) <= 0) { |
|
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|
4998 // There is no zeroing to do. No need for a secondary raw memory barrier. |
| 0 | 4999 } else { |
| 5000 // Clear the whole thing since there are no source elements to copy. | |
| 5001 generate_clear_array(adr_type, dest, basic_elem_type, | |
| 5002 intcon(0), NULL, | |
| 5003 alloc->in(AllocateNode::AllocSize)); | |
|
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|
5004 // Use a secondary InitializeNode as raw memory barrier. |
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5005 // Currently it is needed only on this path since other |
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5006 // paths have stub or runtime calls as raw memory barriers. |
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|
5007 InitializeNode* init = insert_mem_bar_volatile(Op_Initialize, |
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5008 Compile::AliasIdxRaw, |
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|
5009 top())->as_Initialize(); |
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|
5010 init->set_complete(&_gvn); // (there is no corresponding AllocateNode) |
| 0 | 5011 } |
| 5012 } | |
| 5013 | |
| 5014 // Present the results of the fast call. | |
| 5015 result_region->init_req(zero_path, control()); | |
| 5016 result_i_o ->init_req(zero_path, i_o()); | |
| 5017 result_memory->init_req(zero_path, memory(adr_type)); | |
| 5018 } | |
| 5019 | |
| 2324 | 5020 if (!stopped() && dest_uninitialized) { |
| 0 | 5021 // We have to initialize the *uncopied* part of the array to zero. |
| 5022 // The copy destination is the slice dest[off..off+len]. The other slices | |
| 5023 // are dest_head = dest[0..off] and dest_tail = dest[off+len..dest.length]. | |
| 5024 Node* dest_size = alloc->in(AllocateNode::AllocSize); | |
| 5025 Node* dest_length = alloc->in(AllocateNode::ALength); | |
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5026 Node* dest_tail = _gvn.transform(new(C) AddINode(dest_offset, |
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|
5027 copy_length)); |
| 0 | 5028 |
| 5029 // If there is a head section that needs zeroing, do it now. | |
| 5030 if (find_int_con(dest_offset, -1) != 0) { | |
| 5031 generate_clear_array(adr_type, dest, basic_elem_type, | |
| 5032 intcon(0), dest_offset, | |
| 5033 NULL); | |
| 5034 } | |
| 5035 | |
| 5036 // Next, perform a dynamic check on the tail length. | |
| 5037 // It is often zero, and we can win big if we prove this. | |
| 5038 // There are two wins: Avoid generating the ClearArray | |
| 5039 // with its attendant messy index arithmetic, and upgrade | |
| 5040 // the copy to a more hardware-friendly word size of 64 bits. | |
| 5041 Node* tail_ctl = NULL; | |
| 4778 | 5042 if (!stopped() && !dest_tail->eqv_uncast(dest_length)) { |
|
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5043 Node* cmp_lt = _gvn.transform(new(C) CmpINode(dest_tail, dest_length)); |
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|
5044 Node* bol_lt = _gvn.transform(new(C) BoolNode(cmp_lt, BoolTest::lt)); |
| 0 | 5045 tail_ctl = generate_slow_guard(bol_lt, NULL); |
| 5046 assert(tail_ctl != NULL || !stopped(), "must be an outcome"); | |
| 5047 } | |
| 5048 | |
| 5049 // At this point, let's assume there is no tail. | |
| 5050 if (!stopped() && alloc != NULL && basic_elem_type != T_OBJECT) { | |
| 5051 // There is no tail. Try an upgrade to a 64-bit copy. | |
| 5052 bool didit = false; | |
| 5053 { PreserveJVMState pjvms(this); | |
| 5054 didit = generate_block_arraycopy(adr_type, basic_elem_type, alloc, | |
| 5055 src, src_offset, dest, dest_offset, | |
| 2324 | 5056 dest_size, dest_uninitialized); |
| 0 | 5057 if (didit) { |
| 5058 // Present the results of the block-copying fast call. | |
| 5059 result_region->init_req(bcopy_path, control()); | |
| 5060 result_i_o ->init_req(bcopy_path, i_o()); | |
| 5061 result_memory->init_req(bcopy_path, memory(adr_type)); | |
| 5062 } | |
| 5063 } | |
| 5064 if (didit) | |
| 5065 set_control(top()); // no regular fast path | |
| 5066 } | |
| 5067 | |
| 5068 // Clear the tail, if any. | |
| 5069 if (tail_ctl != NULL) { | |
| 5070 Node* notail_ctl = stopped() ? NULL : control(); | |
| 5071 set_control(tail_ctl); | |
| 5072 if (notail_ctl == NULL) { | |
| 5073 generate_clear_array(adr_type, dest, basic_elem_type, | |
| 5074 dest_tail, NULL, | |
| 5075 dest_size); | |
| 5076 } else { | |
| 5077 // Make a local merge. | |
|
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5078 Node* done_ctl = new(C) RegionNode(3); |
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5079 Node* done_mem = new(C) PhiNode(done_ctl, Type::MEMORY, adr_type); |
| 0 | 5080 done_ctl->init_req(1, notail_ctl); |
| 5081 done_mem->init_req(1, memory(adr_type)); | |
| 5082 generate_clear_array(adr_type, dest, basic_elem_type, | |
| 5083 dest_tail, NULL, | |
| 5084 dest_size); | |
| 5085 done_ctl->init_req(2, control()); | |
| 5086 done_mem->init_req(2, memory(adr_type)); | |
|
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|
5087 set_control( _gvn.transform(done_ctl)); |
| 0 | 5088 set_memory( _gvn.transform(done_mem), adr_type ); |
| 5089 } | |
| 5090 } | |
| 5091 } | |
| 5092 | |
| 5093 BasicType copy_type = basic_elem_type; | |
| 5094 assert(basic_elem_type != T_ARRAY, "caller must fix this"); | |
| 5095 if (!stopped() && copy_type == T_OBJECT) { | |
| 5096 // If src and dest have compatible element types, we can copy bits. | |
| 5097 // Types S[] and D[] are compatible if D is a supertype of S. | |
| 5098 // | |
| 5099 // If they are not, we will use checked_oop_disjoint_arraycopy, | |
| 5100 // which performs a fast optimistic per-oop check, and backs off | |
| 5101 // further to JVM_ArrayCopy on the first per-oop check that fails. | |
| 5102 // (Actually, we don't move raw bits only; the GC requires card marks.) | |
| 5103 | |
|
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5104 // Get the Klass* for both src and dest |
| 0 | 5105 Node* src_klass = load_object_klass(src); |
| 5106 Node* dest_klass = load_object_klass(dest); | |
| 5107 | |
| 5108 // Generate the subtype check. | |
| 5109 // This might fold up statically, or then again it might not. | |
| 5110 // | |
| 5111 // Non-static example: Copying List<String>.elements to a new String[]. | |
| 5112 // The backing store for a List<String> is always an Object[], | |
| 5113 // but its elements are always type String, if the generic types | |
| 5114 // are correct at the source level. | |
| 5115 // | |
| 5116 // Test S[] against D[], not S against D, because (probably) | |
| 5117 // the secondary supertype cache is less busy for S[] than S. | |
| 5118 // This usually only matters when D is an interface. | |
| 5119 Node* not_subtype_ctrl = gen_subtype_check(src_klass, dest_klass); | |
| 5120 // Plug failing path into checked_oop_disjoint_arraycopy | |
| 5121 if (not_subtype_ctrl != top()) { | |
| 5122 PreserveJVMState pjvms(this); | |
| 5123 set_control(not_subtype_ctrl); | |
| 5124 // (At this point we can assume disjoint_bases, since types differ.) | |
|
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5125 int ek_offset = in_bytes(ObjArrayKlass::element_klass_offset()); |
| 0 | 5126 Node* p1 = basic_plus_adr(dest_klass, ek_offset); |
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5127 Node* n1 = LoadKlassNode::make(_gvn, immutable_memory(), p1, TypeRawPtr::BOTTOM); |
| 0 | 5128 Node* dest_elem_klass = _gvn.transform(n1); |
| 5129 Node* cv = generate_checkcast_arraycopy(adr_type, | |
| 5130 dest_elem_klass, | |
| 5131 src, src_offset, dest, dest_offset, | |
| 2324 | 5132 ConvI2X(copy_length), dest_uninitialized); |
| 0 | 5133 if (cv == NULL) cv = intcon(-1); // failure (no stub available) |
| 5134 checked_control = control(); | |
| 5135 checked_i_o = i_o(); | |
| 5136 checked_mem = memory(adr_type); | |
| 5137 checked_value = cv; | |
| 5138 } | |
| 5139 // At this point we know we do not need type checks on oop stores. | |
| 5140 | |
| 5141 // Let's see if we need card marks: | |
| 5142 if (alloc != NULL && use_ReduceInitialCardMarks()) { | |
| 5143 // If we do not need card marks, copy using the jint or jlong stub. | |
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5144 copy_type = LP64_ONLY(UseCompressedOops ? T_INT : T_LONG) NOT_LP64(T_INT); |
|
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|
5145 assert(type2aelembytes(basic_elem_type) == type2aelembytes(copy_type), |
| 0 | 5146 "sizes agree"); |
| 5147 } | |
| 5148 } | |
| 5149 | |
| 5150 if (!stopped()) { | |
| 5151 // Generate the fast path, if possible. | |
| 5152 PreserveJVMState pjvms(this); | |
| 5153 generate_unchecked_arraycopy(adr_type, copy_type, disjoint_bases, | |
| 5154 src, src_offset, dest, dest_offset, | |
| 2324 | 5155 ConvI2X(copy_length), dest_uninitialized); |
| 0 | 5156 |
| 5157 // Present the results of the fast call. | |
| 5158 result_region->init_req(fast_path, control()); | |
| 5159 result_i_o ->init_req(fast_path, i_o()); | |
| 5160 result_memory->init_req(fast_path, memory(adr_type)); | |
| 5161 } | |
| 5162 | |
| 5163 // Here are all the slow paths up to this point, in one bundle: | |
| 5164 slow_control = top(); | |
| 5165 if (slow_region != NULL) | |
| 5166 slow_control = _gvn.transform(slow_region); | |
|
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|
5167 DEBUG_ONLY(slow_region = (RegionNode*)badAddress); |
| 0 | 5168 |
| 5169 set_control(checked_control); | |
| 5170 if (!stopped()) { | |
| 5171 // Clean up after the checked call. | |
| 5172 // The returned value is either 0 or -1^K, | |
| 5173 // where K = number of partially transferred array elements. | |
|
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5174 Node* cmp = _gvn.transform(new(C) CmpINode(checked_value, intcon(0))); |
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5175 Node* bol = _gvn.transform(new(C) BoolNode(cmp, BoolTest::eq)); |
| 0 | 5176 IfNode* iff = create_and_map_if(control(), bol, PROB_MAX, COUNT_UNKNOWN); |
| 5177 | |
| 5178 // If it is 0, we are done, so transfer to the end. | |
|
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5179 Node* checks_done = _gvn.transform(new(C) IfTrueNode(iff)); |
| 0 | 5180 result_region->init_req(checked_path, checks_done); |
| 5181 result_i_o ->init_req(checked_path, checked_i_o); | |
| 5182 result_memory->init_req(checked_path, checked_mem); | |
| 5183 | |
| 5184 // If it is not zero, merge into the slow call. | |
|
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5185 set_control( _gvn.transform(new(C) IfFalseNode(iff) )); |
|
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5186 RegionNode* slow_reg2 = new(C) RegionNode(3); |
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5187 PhiNode* slow_i_o2 = new(C) PhiNode(slow_reg2, Type::ABIO); |
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5188 PhiNode* slow_mem2 = new(C) PhiNode(slow_reg2, Type::MEMORY, adr_type); |
| 0 | 5189 record_for_igvn(slow_reg2); |
| 5190 slow_reg2 ->init_req(1, slow_control); | |
| 5191 slow_i_o2 ->init_req(1, slow_i_o); | |
| 5192 slow_mem2 ->init_req(1, slow_mem); | |
| 5193 slow_reg2 ->init_req(2, control()); | |
|
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|
5194 slow_i_o2 ->init_req(2, checked_i_o); |
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|
5195 slow_mem2 ->init_req(2, checked_mem); |
| 0 | 5196 |
| 5197 slow_control = _gvn.transform(slow_reg2); | |
| 5198 slow_i_o = _gvn.transform(slow_i_o2); | |
| 5199 slow_mem = _gvn.transform(slow_mem2); | |
| 5200 | |
| 5201 if (alloc != NULL) { | |
| 5202 // We'll restart from the very beginning, after zeroing the whole thing. | |
| 5203 // This can cause double writes, but that's OK since dest is brand new. | |
| 5204 // So we ignore the low 31 bits of the value returned from the stub. | |
| 5205 } else { | |
| 5206 // We must continue the copy exactly where it failed, or else | |
| 5207 // another thread might see the wrong number of writes to dest. | |
|
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|
5208 Node* checked_offset = _gvn.transform(new(C) XorINode(checked_value, intcon(-1))); |
|
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|
5209 Node* slow_offset = new(C) PhiNode(slow_reg2, TypeInt::INT); |
| 0 | 5210 slow_offset->init_req(1, intcon(0)); |
| 5211 slow_offset->init_req(2, checked_offset); | |
| 5212 slow_offset = _gvn.transform(slow_offset); | |
| 5213 | |
| 5214 // Adjust the arguments by the conditionally incoming offset. | |
|
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|
5215 Node* src_off_plus = _gvn.transform(new(C) AddINode(src_offset, slow_offset)); |
|
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|
5216 Node* dest_off_plus = _gvn.transform(new(C) AddINode(dest_offset, slow_offset)); |
|
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|
5217 Node* length_minus = _gvn.transform(new(C) SubINode(copy_length, slow_offset)); |
| 0 | 5218 |
| 5219 // Tweak the node variables to adjust the code produced below: | |
| 5220 src_offset = src_off_plus; | |
| 5221 dest_offset = dest_off_plus; | |
| 5222 copy_length = length_minus; | |
| 5223 } | |
| 5224 } | |
| 5225 | |
| 5226 set_control(slow_control); | |
| 5227 if (!stopped()) { | |
| 5228 // Generate the slow path, if needed. | |
| 5229 PreserveJVMState pjvms(this); // replace_in_map may trash the map | |
| 5230 | |
| 5231 set_memory(slow_mem, adr_type); | |
| 5232 set_i_o(slow_i_o); | |
| 5233 | |
| 2324 | 5234 if (dest_uninitialized) { |
| 0 | 5235 generate_clear_array(adr_type, dest, basic_elem_type, |
| 5236 intcon(0), NULL, | |
| 5237 alloc->in(AllocateNode::AllocSize)); | |
| 5238 } | |
| 5239 | |
| 5240 generate_slow_arraycopy(adr_type, | |
| 5241 src, src_offset, dest, dest_offset, | |
| 2324 | 5242 copy_length, /*dest_uninitialized*/false); |
| 0 | 5243 |
| 5244 result_region->init_req(slow_call_path, control()); | |
| 5245 result_i_o ->init_req(slow_call_path, i_o()); | |
| 5246 result_memory->init_req(slow_call_path, memory(adr_type)); | |
| 5247 } | |
| 5248 | |
| 5249 // Remove unused edges. | |
| 5250 for (uint i = 1; i < result_region->req(); i++) { | |
| 5251 if (result_region->in(i) == NULL) | |
| 5252 result_region->init_req(i, top()); | |
| 5253 } | |
| 5254 | |
| 5255 // Finished; return the combined state. | |
|
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|
5256 set_control( _gvn.transform(result_region)); |
| 0 | 5257 set_i_o( _gvn.transform(result_i_o) ); |
| 5258 set_memory( _gvn.transform(result_memory), adr_type ); | |
| 5259 | |
| 5260 // The memory edges above are precise in order to model effects around | |
| 605 | 5261 // array copies accurately to allow value numbering of field loads around |
| 0 | 5262 // arraycopy. Such field loads, both before and after, are common in Java |
| 5263 // collections and similar classes involving header/array data structures. | |
| 5264 // | |
| 5265 // But with low number of register or when some registers are used or killed | |
| 5266 // by arraycopy calls it causes registers spilling on stack. See 6544710. | |
| 5267 // The next memory barrier is added to avoid it. If the arraycopy can be | |
| 5268 // optimized away (which it can, sometimes) then we can manually remove | |
| 5269 // the membar also. | |
|
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|
5270 // |
|
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|
5271 // Do not let reads from the cloned object float above the arraycopy. |
|
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|
5272 if (alloc != NULL) { |
|
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|
5273 // Do not let stores that initialize this object be reordered with |
|
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|
5274 // a subsequent store that would make this object accessible by |
|
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|
5275 // other threads. |
|
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|
5276 // Record what AllocateNode this StoreStore protects so that |
|
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5277 // escape analysis can go from the MemBarStoreStoreNode to the |
|
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|
5278 // AllocateNode and eliminate the MemBarStoreStoreNode if possible |
|
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|
5279 // based on the escape status of the AllocateNode. |
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|
5280 insert_mem_bar(Op_MemBarStoreStore, alloc->proj_out(AllocateNode::RawAddress)); |
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|
5281 } else if (InsertMemBarAfterArraycopy) |
| 0 | 5282 insert_mem_bar(Op_MemBarCPUOrder); |
| 5283 } | |
| 5284 | |
| 5285 | |
| 5286 // Helper function which determines if an arraycopy immediately follows | |
| 5287 // an allocation, with no intervening tests or other escapes for the object. | |
| 5288 AllocateArrayNode* | |
| 5289 LibraryCallKit::tightly_coupled_allocation(Node* ptr, | |
| 5290 RegionNode* slow_region) { | |
| 5291 if (stopped()) return NULL; // no fast path | |
| 5292 if (C->AliasLevel() == 0) return NULL; // no MergeMems around | |
| 5293 | |
| 5294 AllocateArrayNode* alloc = AllocateArrayNode::Ideal_array_allocation(ptr, &_gvn); | |
| 5295 if (alloc == NULL) return NULL; | |
| 5296 | |
| 5297 Node* rawmem = memory(Compile::AliasIdxRaw); | |
| 5298 // Is the allocation's memory state untouched? | |
| 5299 if (!(rawmem->is_Proj() && rawmem->in(0)->is_Initialize())) { | |
| 5300 // Bail out if there have been raw-memory effects since the allocation. | |
| 5301 // (Example: There might have been a call or safepoint.) | |
| 5302 return NULL; | |
| 5303 } | |
| 5304 rawmem = rawmem->in(0)->as_Initialize()->memory(Compile::AliasIdxRaw); | |
| 5305 if (!(rawmem->is_Proj() && rawmem->in(0) == alloc)) { | |
| 5306 return NULL; | |
| 5307 } | |
| 5308 | |
| 5309 // There must be no unexpected observers of this allocation. | |
| 5310 for (DUIterator_Fast imax, i = ptr->fast_outs(imax); i < imax; i++) { | |
| 5311 Node* obs = ptr->fast_out(i); | |
| 5312 if (obs != this->map()) { | |
| 5313 return NULL; | |
| 5314 } | |
| 5315 } | |
| 5316 | |
| 5317 // This arraycopy must unconditionally follow the allocation of the ptr. | |
| 5318 Node* alloc_ctl = ptr->in(0); | |
| 5319 assert(just_allocated_object(alloc_ctl) == ptr, "most recent allo"); | |
| 5320 | |
| 5321 Node* ctl = control(); | |
| 5322 while (ctl != alloc_ctl) { | |
| 5323 // There may be guards which feed into the slow_region. | |
| 5324 // Any other control flow means that we might not get a chance | |
| 5325 // to finish initializing the allocated object. | |
| 5326 if ((ctl->is_IfFalse() || ctl->is_IfTrue()) && ctl->in(0)->is_If()) { | |
| 5327 IfNode* iff = ctl->in(0)->as_If(); | |
| 5328 Node* not_ctl = iff->proj_out(1 - ctl->as_Proj()->_con); | |
| 5329 assert(not_ctl != NULL && not_ctl != ctl, "found alternate"); | |
| 5330 if (slow_region != NULL && slow_region->find_edge(not_ctl) >= 1) { | |
| 5331 ctl = iff->in(0); // This test feeds the known slow_region. | |
| 5332 continue; | |
| 5333 } | |
| 5334 // One more try: Various low-level checks bottom out in | |
| 5335 // uncommon traps. If the debug-info of the trap omits | |
| 5336 // any reference to the allocation, as we've already | |
| 5337 // observed, then there can be no objection to the trap. | |
| 5338 bool found_trap = false; | |
| 5339 for (DUIterator_Fast jmax, j = not_ctl->fast_outs(jmax); j < jmax; j++) { | |
| 5340 Node* obs = not_ctl->fast_out(j); | |
| 5341 if (obs->in(0) == not_ctl && obs->is_Call() && | |
| 1748 | 5342 (obs->as_Call()->entry_point() == SharedRuntime::uncommon_trap_blob()->entry_point())) { |
| 0 | 5343 found_trap = true; break; |
| 5344 } | |
| 5345 } | |
| 5346 if (found_trap) { | |
| 5347 ctl = iff->in(0); // This test feeds a harmless uncommon trap. | |
| 5348 continue; | |
| 5349 } | |
| 5350 } | |
| 5351 return NULL; | |
| 5352 } | |
| 5353 | |
| 5354 // If we get this far, we have an allocation which immediately | |
| 5355 // precedes the arraycopy, and we can take over zeroing the new object. | |
| 5356 // The arraycopy will finish the initialization, and provide | |
| 5357 // a new control state to which we will anchor the destination pointer. | |
| 5358 | |
| 5359 return alloc; | |
| 5360 } | |
| 5361 | |
| 5362 // Helper for initialization of arrays, creating a ClearArray. | |
| 5363 // It writes zero bits in [start..end), within the body of an array object. | |
| 5364 // The memory effects are all chained onto the 'adr_type' alias category. | |
| 5365 // | |
| 5366 // Since the object is otherwise uninitialized, we are free | |
| 5367 // to put a little "slop" around the edges of the cleared area, | |
| 5368 // as long as it does not go back into the array's header, | |
| 5369 // or beyond the array end within the heap. | |
| 5370 // | |
| 5371 // The lower edge can be rounded down to the nearest jint and the | |
| 5372 // upper edge can be rounded up to the nearest MinObjAlignmentInBytes. | |
| 5373 // | |
| 5374 // Arguments: | |
| 5375 // adr_type memory slice where writes are generated | |
| 5376 // dest oop of the destination array | |
| 5377 // basic_elem_type element type of the destination | |
| 5378 // slice_idx array index of first element to store | |
| 5379 // slice_len number of elements to store (or NULL) | |
| 5380 // dest_size total size in bytes of the array object | |
| 5381 // | |
| 5382 // Exactly one of slice_len or dest_size must be non-NULL. | |
| 5383 // If dest_size is non-NULL, zeroing extends to the end of the object. | |
| 5384 // If slice_len is non-NULL, the slice_idx value must be a constant. | |
| 5385 void | |
| 5386 LibraryCallKit::generate_clear_array(const TypePtr* adr_type, | |
| 5387 Node* dest, | |
| 5388 BasicType basic_elem_type, | |
| 5389 Node* slice_idx, | |
| 5390 Node* slice_len, | |
| 5391 Node* dest_size) { | |
| 5392 // one or the other but not both of slice_len and dest_size: | |
| 5393 assert((slice_len != NULL? 1: 0) + (dest_size != NULL? 1: 0) == 1, ""); | |
| 5394 if (slice_len == NULL) slice_len = top(); | |
| 5395 if (dest_size == NULL) dest_size = top(); | |
| 5396 | |
| 5397 // operate on this memory slice: | |
| 5398 Node* mem = memory(adr_type); // memory slice to operate on | |
| 5399 | |
| 5400 // scaling and rounding of indexes: | |
|
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|
5401 int scale = exact_log2(type2aelembytes(basic_elem_type)); |
| 0 | 5402 int abase = arrayOopDesc::base_offset_in_bytes(basic_elem_type); |
| 5403 int clear_low = (-1 << scale) & (BytesPerInt - 1); | |
| 5404 int bump_bit = (-1 << scale) & BytesPerInt; | |
| 5405 | |
| 5406 // determine constant starts and ends | |
| 5407 const intptr_t BIG_NEG = -128; | |
| 5408 assert(BIG_NEG + 2*abase < 0, "neg enough"); | |
| 5409 intptr_t slice_idx_con = (intptr_t) find_int_con(slice_idx, BIG_NEG); | |
| 5410 intptr_t slice_len_con = (intptr_t) find_int_con(slice_len, BIG_NEG); | |
| 5411 if (slice_len_con == 0) { | |
| 5412 return; // nothing to do here | |
| 5413 } | |
| 5414 intptr_t start_con = (abase + (slice_idx_con << scale)) & ~clear_low; | |
| 5415 intptr_t end_con = find_intptr_t_con(dest_size, -1); | |
| 5416 if (slice_idx_con >= 0 && slice_len_con >= 0) { | |
| 5417 assert(end_con < 0, "not two cons"); | |
| 5418 end_con = round_to(abase + ((slice_idx_con + slice_len_con) << scale), | |
| 5419 BytesPerLong); | |
| 5420 } | |
| 5421 | |
| 5422 if (start_con >= 0 && end_con >= 0) { | |
| 5423 // Constant start and end. Simple. | |
| 5424 mem = ClearArrayNode::clear_memory(control(), mem, dest, | |
| 5425 start_con, end_con, &_gvn); | |
| 5426 } else if (start_con >= 0 && dest_size != top()) { | |
| 5427 // Constant start, pre-rounded end after the tail of the array. | |
| 5428 Node* end = dest_size; | |
| 5429 mem = ClearArrayNode::clear_memory(control(), mem, dest, | |
| 5430 start_con, end, &_gvn); | |
| 5431 } else if (start_con >= 0 && slice_len != top()) { | |
| 5432 // Constant start, non-constant end. End needs rounding up. | |
| 5433 // End offset = round_up(abase + ((slice_idx_con + slice_len) << scale), 8) | |
| 5434 intptr_t end_base = abase + (slice_idx_con << scale); | |
| 5435 int end_round = (-1 << scale) & (BytesPerLong - 1); | |
| 5436 Node* end = ConvI2X(slice_len); | |
| 5437 if (scale != 0) | |
|
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|
5438 end = _gvn.transform(new(C) LShiftXNode(end, intcon(scale) )); |
| 0 | 5439 end_base += end_round; |
|
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5440 end = _gvn.transform(new(C) AddXNode(end, MakeConX(end_base))); |
|
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|
5441 end = _gvn.transform(new(C) AndXNode(end, MakeConX(~end_round))); |
| 0 | 5442 mem = ClearArrayNode::clear_memory(control(), mem, dest, |
| 5443 start_con, end, &_gvn); | |
| 5444 } else if (start_con < 0 && dest_size != top()) { | |
| 5445 // Non-constant start, pre-rounded end after the tail of the array. | |
| 5446 // This is almost certainly a "round-to-end" operation. | |
| 5447 Node* start = slice_idx; | |
| 5448 start = ConvI2X(start); | |
| 5449 if (scale != 0) | |
|
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|
5450 start = _gvn.transform(new(C) LShiftXNode( start, intcon(scale) )); |
|
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|
5451 start = _gvn.transform(new(C) AddXNode(start, MakeConX(abase))); |
| 0 | 5452 if ((bump_bit | clear_low) != 0) { |
| 5453 int to_clear = (bump_bit | clear_low); | |
| 5454 // Align up mod 8, then store a jint zero unconditionally | |
| 5455 // just before the mod-8 boundary. | |
|
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5456 if (((abase + bump_bit) & ~to_clear) - bump_bit |
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5457 < arrayOopDesc::length_offset_in_bytes() + BytesPerInt) { |
|
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5458 bump_bit = 0; |
|
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5459 assert((abase & to_clear) == 0, "array base must be long-aligned"); |
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5460 } else { |
|
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5461 // Bump 'start' up to (or past) the next jint boundary: |
|
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5462 start = _gvn.transform(new(C) AddXNode(start, MakeConX(bump_bit))); |
|
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5463 assert((abase & clear_low) == 0, "array base must be int-aligned"); |
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5464 } |
| 0 | 5465 // Round bumped 'start' down to jlong boundary in body of array. |
|
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5466 start = _gvn.transform(new(C) AndXNode(start, MakeConX(~to_clear))); |
|
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5467 if (bump_bit != 0) { |
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5468 // Store a zero to the immediately preceding jint: |
|
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|
5469 Node* x1 = _gvn.transform(new(C) AddXNode(start, MakeConX(-bump_bit))); |
|
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5470 Node* p1 = basic_plus_adr(dest, x1); |
|
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|
5471 mem = StoreNode::make(_gvn, control(), mem, p1, adr_type, intcon(0), T_INT, MemNode::unordered); |
|
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|
5472 mem = _gvn.transform(mem); |
|
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
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34
diff
changeset
|
5473 } |
| 0 | 5474 } |
| 5475 Node* end = dest_size; // pre-rounded | |
| 5476 mem = ClearArrayNode::clear_memory(control(), mem, dest, | |
| 5477 start, end, &_gvn); | |
| 5478 } else { | |
| 5479 // Non-constant start, unrounded non-constant end. | |
| 5480 // (Nobody zeroes a random midsection of an array using this routine.) | |
| 5481 ShouldNotReachHere(); // fix caller | |
| 5482 } | |
| 5483 | |
| 5484 // Done. | |
| 5485 set_memory(mem, adr_type); | |
| 5486 } | |
| 5487 | |
| 5488 | |
| 5489 bool | |
| 5490 LibraryCallKit::generate_block_arraycopy(const TypePtr* adr_type, | |
| 5491 BasicType basic_elem_type, | |
| 5492 AllocateNode* alloc, | |
| 5493 Node* src, Node* src_offset, | |
| 5494 Node* dest, Node* dest_offset, | |
| 2324 | 5495 Node* dest_size, bool dest_uninitialized) { |
| 0 | 5496 // See if there is an advantage from block transfer. |
|
29
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6633953: type2aelembytes{T_ADDRESS} should be 8 bytes in 64 bit VM
kvn
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0
diff
changeset
|
5497 int scale = exact_log2(type2aelembytes(basic_elem_type)); |
| 0 | 5498 if (scale >= LogBytesPerLong) |
| 5499 return false; // it is already a block transfer | |
| 5500 | |
| 5501 // Look at the alignment of the starting offsets. | |
| 5502 int abase = arrayOopDesc::base_offset_in_bytes(basic_elem_type); | |
|
3742
b2cb497dec28
7047069: Array can dynamically change size when assigned to an object field
kvn
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3337
diff
changeset
|
5503 |
|
b2cb497dec28
7047069: Array can dynamically change size when assigned to an object field
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parents:
3337
diff
changeset
|
5504 intptr_t src_off_con = (intptr_t) find_int_con(src_offset, -1); |
|
b2cb497dec28
7047069: Array can dynamically change size when assigned to an object field
kvn
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3337
diff
changeset
|
5505 intptr_t dest_off_con = (intptr_t) find_int_con(dest_offset, -1); |
|
b2cb497dec28
7047069: Array can dynamically change size when assigned to an object field
kvn
parents:
3337
diff
changeset
|
5506 if (src_off_con < 0 || dest_off_con < 0) |
| 0 | 5507 // At present, we can only understand constants. |
| 5508 return false; | |
| 5509 | |
|
3742
b2cb497dec28
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3337
diff
changeset
|
5510 intptr_t src_off = abase + (src_off_con << scale); |
|
b2cb497dec28
7047069: Array can dynamically change size when assigned to an object field
kvn
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3337
diff
changeset
|
5511 intptr_t dest_off = abase + (dest_off_con << scale); |
|
b2cb497dec28
7047069: Array can dynamically change size when assigned to an object field
kvn
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3337
diff
changeset
|
5512 |
| 0 | 5513 if (((src_off | dest_off) & (BytesPerLong-1)) != 0) { |
| 5514 // Non-aligned; too bad. | |
| 5515 // One more chance: Pick off an initial 32-bit word. | |
| 5516 // This is a common case, since abase can be odd mod 8. | |
| 5517 if (((src_off | dest_off) & (BytesPerLong-1)) == BytesPerInt && | |
| 5518 ((src_off ^ dest_off) & (BytesPerLong-1)) == 0) { | |
| 5519 Node* sptr = basic_plus_adr(src, src_off); | |
| 5520 Node* dptr = basic_plus_adr(dest, dest_off); | |
|
14429
2113136690bc
8024921: PPC64 (part 113): Extend Load and Store nodes to know about memory ordering
goetz
parents:
13019
diff
changeset
|
5521 Node* sval = make_load(control(), sptr, TypeInt::INT, T_INT, adr_type, MemNode::unordered); |
|
2113136690bc
8024921: PPC64 (part 113): Extend Load and Store nodes to know about memory ordering
goetz
parents:
13019
diff
changeset
|
5522 store_to_memory(control(), dptr, sval, T_INT, adr_type, MemNode::unordered); |
| 0 | 5523 src_off += BytesPerInt; |
| 5524 dest_off += BytesPerInt; | |
| 5525 } else { | |
| 5526 return false; | |
| 5527 } | |
| 5528 } | |
| 5529 assert(src_off % BytesPerLong == 0, ""); | |
| 5530 assert(dest_off % BytesPerLong == 0, ""); | |
| 5531 | |
| 5532 // Do this copy by giant steps. | |
| 5533 Node* sptr = basic_plus_adr(src, src_off); | |
| 5534 Node* dptr = basic_plus_adr(dest, dest_off); | |
| 5535 Node* countx = dest_size; | |
|
11080
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7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10405
diff
changeset
|
5536 countx = _gvn.transform(new (C) SubXNode(countx, MakeConX(dest_off))); |
|
b800986664f4
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drchase
parents:
10405
diff
changeset
|
5537 countx = _gvn.transform(new (C) URShiftXNode(countx, intcon(LogBytesPerLong))); |
| 0 | 5538 |
| 5539 bool disjoint_bases = true; // since alloc != NULL | |
| 5540 generate_unchecked_arraycopy(adr_type, T_LONG, disjoint_bases, | |
| 2324 | 5541 sptr, NULL, dptr, NULL, countx, dest_uninitialized); |
| 0 | 5542 |
| 5543 return true; | |
| 5544 } | |
| 5545 | |
| 5546 | |
| 5547 // Helper function; generates code for the slow case. | |
| 5548 // We make a call to a runtime method which emulates the native method, | |
| 5549 // but without the native wrapper overhead. | |
| 5550 void | |
| 5551 LibraryCallKit::generate_slow_arraycopy(const TypePtr* adr_type, | |
| 5552 Node* src, Node* src_offset, | |
| 5553 Node* dest, Node* dest_offset, | |
| 2324 | 5554 Node* copy_length, bool dest_uninitialized) { |
| 5555 assert(!dest_uninitialized, "Invariant"); | |
| 0 | 5556 Node* call = make_runtime_call(RC_NO_LEAF | RC_UNCOMMON, |
| 5557 OptoRuntime::slow_arraycopy_Type(), | |
| 5558 OptoRuntime::slow_arraycopy_Java(), | |
| 5559 "slow_arraycopy", adr_type, | |
| 5560 src, src_offset, dest, dest_offset, | |
| 5561 copy_length); | |
| 5562 | |
| 5563 // Handle exceptions thrown by this fellow: | |
| 5564 make_slow_call_ex(call, env()->Throwable_klass(), false); | |
| 5565 } | |
| 5566 | |
| 5567 // Helper function; generates code for cases requiring runtime checks. | |
| 5568 Node* | |
| 5569 LibraryCallKit::generate_checkcast_arraycopy(const TypePtr* adr_type, | |
| 5570 Node* dest_elem_klass, | |
| 5571 Node* src, Node* src_offset, | |
| 5572 Node* dest, Node* dest_offset, | |
| 2324 | 5573 Node* copy_length, bool dest_uninitialized) { |
| 0 | 5574 if (stopped()) return NULL; |
| 5575 | |
| 2324 | 5576 address copyfunc_addr = StubRoutines::checkcast_arraycopy(dest_uninitialized); |
| 0 | 5577 if (copyfunc_addr == NULL) { // Stub was not generated, go slow path. |
| 5578 return NULL; | |
| 5579 } | |
| 5580 | |
| 5581 // Pick out the parameters required to perform a store-check | |
| 5582 // for the target array. This is an optimistic check. It will | |
| 5583 // look in each non-null element's class, at the desired klass's | |
| 5584 // super_check_offset, for the desired klass. | |
|
4762
069ab3f976d3
7118863: Move sizeof(klassOopDesc) into the *Klass::*_offset_in_bytes() functions
stefank
parents:
3961
diff
changeset
|
5585 int sco_offset = in_bytes(Klass::super_check_offset_offset()); |
| 0 | 5586 Node* p3 = basic_plus_adr(dest_elem_klass, sco_offset); |
|
14429
2113136690bc
8024921: PPC64 (part 113): Extend Load and Store nodes to know about memory ordering
goetz
parents:
13019
diff
changeset
|
5587 Node* n3 = new(C) LoadINode(NULL, memory(p3), p3, _gvn.type(p3)->is_ptr(), TypeInt::INT, MemNode::unordered); |
|
1844
75588558f1bf
6980792: Crash "exception happened outside interpreter, nmethods and vtable stubs (1)"
never
parents:
1748
diff
changeset
|
5588 Node* check_offset = ConvI2X(_gvn.transform(n3)); |
| 0 | 5589 Node* check_value = dest_elem_klass; |
| 5590 | |
| 5591 Node* src_start = array_element_address(src, src_offset, T_OBJECT); | |
| 5592 Node* dest_start = array_element_address(dest, dest_offset, T_OBJECT); | |
| 5593 | |
| 5594 // (We know the arrays are never conjoint, because their types differ.) | |
| 5595 Node* call = make_runtime_call(RC_LEAF|RC_NO_FP, | |
| 5596 OptoRuntime::checkcast_arraycopy_Type(), | |
| 5597 copyfunc_addr, "checkcast_arraycopy", adr_type, | |
| 5598 // five arguments, of which two are | |
| 5599 // intptr_t (jlong in LP64) | |
| 5600 src_start, dest_start, | |
| 5601 copy_length XTOP, | |
| 5602 check_offset XTOP, | |
| 5603 check_value); | |
| 5604 | |
|
6804
e626685e9f6c
7193318: C2: remove number of inputs requirement from Node's new operator
kvn
parents:
6795
diff
changeset
|
5605 return _gvn.transform(new (C) ProjNode(call, TypeFunc::Parms)); |
| 0 | 5606 } |
| 5607 | |
| 5608 | |
| 5609 // Helper function; generates code for cases requiring runtime checks. | |
| 5610 Node* | |
| 5611 LibraryCallKit::generate_generic_arraycopy(const TypePtr* adr_type, | |
| 5612 Node* src, Node* src_offset, | |
| 5613 Node* dest, Node* dest_offset, | |
| 2324 | 5614 Node* copy_length, bool dest_uninitialized) { |
| 5615 assert(!dest_uninitialized, "Invariant"); | |
| 0 | 5616 if (stopped()) return NULL; |
| 5617 address copyfunc_addr = StubRoutines::generic_arraycopy(); | |
| 5618 if (copyfunc_addr == NULL) { // Stub was not generated, go slow path. | |
| 5619 return NULL; | |
| 5620 } | |
| 5621 | |
| 5622 Node* call = make_runtime_call(RC_LEAF|RC_NO_FP, | |
| 5623 OptoRuntime::generic_arraycopy_Type(), | |
| 5624 copyfunc_addr, "generic_arraycopy", adr_type, | |
| 5625 src, src_offset, dest, dest_offset, copy_length); | |
| 5626 | |
|
6804
e626685e9f6c
7193318: C2: remove number of inputs requirement from Node's new operator
kvn
parents:
6795
diff
changeset
|
5627 return _gvn.transform(new (C) ProjNode(call, TypeFunc::Parms)); |
| 0 | 5628 } |
| 5629 | |
| 5630 // Helper function; generates the fast out-of-line call to an arraycopy stub. | |
| 5631 void | |
| 5632 LibraryCallKit::generate_unchecked_arraycopy(const TypePtr* adr_type, | |
| 5633 BasicType basic_elem_type, | |
| 5634 bool disjoint_bases, | |
| 5635 Node* src, Node* src_offset, | |
| 5636 Node* dest, Node* dest_offset, | |
| 2324 | 5637 Node* copy_length, bool dest_uninitialized) { |
| 0 | 5638 if (stopped()) return; // nothing to do |
| 5639 | |
| 5640 Node* src_start = src; | |
| 5641 Node* dest_start = dest; | |
| 5642 if (src_offset != NULL || dest_offset != NULL) { | |
| 5643 assert(src_offset != NULL && dest_offset != NULL, ""); | |
| 5644 src_start = array_element_address(src, src_offset, basic_elem_type); | |
| 5645 dest_start = array_element_address(dest, dest_offset, basic_elem_type); | |
| 5646 } | |
| 5647 | |
| 5648 // Figure out which arraycopy runtime method to call. | |
| 5649 const char* copyfunc_name = "arraycopy"; | |
| 5650 address copyfunc_addr = | |
| 5651 basictype2arraycopy(basic_elem_type, src_offset, dest_offset, | |
| 2324 | 5652 disjoint_bases, copyfunc_name, dest_uninitialized); |
| 0 | 5653 |
| 5654 // Call it. Note that the count_ix value is not scaled to a byte-size. | |
| 5655 make_runtime_call(RC_LEAF|RC_NO_FP, | |
| 5656 OptoRuntime::fast_arraycopy_Type(), | |
| 5657 copyfunc_addr, copyfunc_name, adr_type, | |
| 5658 src_start, dest_start, copy_length XTOP); | |
| 5659 } | |
|
3249
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2385
diff
changeset
|
5660 |
|
7637
b30b3c2a0cf2
6896617: Optimize sun.nio.cs.ISO_8859_1$Encode.encodeArrayLoop() on x86
kvn
parents:
7602
diff
changeset
|
5661 //-------------inline_encodeISOArray----------------------------------- |
|
b30b3c2a0cf2
6896617: Optimize sun.nio.cs.ISO_8859_1$Encode.encodeArrayLoop() on x86
kvn
parents:
7602
diff
changeset
|
5662 // encode char[] to byte[] in ISO_8859_1 |
|
b30b3c2a0cf2
6896617: Optimize sun.nio.cs.ISO_8859_1$Encode.encodeArrayLoop() on x86
kvn
parents:
7602
diff
changeset
|
5663 bool LibraryCallKit::inline_encodeISOArray() { |
|
b30b3c2a0cf2
6896617: Optimize sun.nio.cs.ISO_8859_1$Encode.encodeArrayLoop() on x86
kvn
parents:
7602
diff
changeset
|
5664 assert(callee()->signature()->size() == 5, "encodeISOArray has 5 parameters"); |
|
b30b3c2a0cf2
6896617: Optimize sun.nio.cs.ISO_8859_1$Encode.encodeArrayLoop() on x86
kvn
parents:
7602
diff
changeset
|
5665 // no receiver since it is static method |
|
b30b3c2a0cf2
6896617: Optimize sun.nio.cs.ISO_8859_1$Encode.encodeArrayLoop() on x86
kvn
parents:
7602
diff
changeset
|
5666 Node *src = argument(0); |
|
b30b3c2a0cf2
6896617: Optimize sun.nio.cs.ISO_8859_1$Encode.encodeArrayLoop() on x86
kvn
parents:
7602
diff
changeset
|
5667 Node *src_offset = argument(1); |
|
b30b3c2a0cf2
6896617: Optimize sun.nio.cs.ISO_8859_1$Encode.encodeArrayLoop() on x86
kvn
parents:
7602
diff
changeset
|
5668 Node *dst = argument(2); |
|
b30b3c2a0cf2
6896617: Optimize sun.nio.cs.ISO_8859_1$Encode.encodeArrayLoop() on x86
kvn
parents:
7602
diff
changeset
|
5669 Node *dst_offset = argument(3); |
|
b30b3c2a0cf2
6896617: Optimize sun.nio.cs.ISO_8859_1$Encode.encodeArrayLoop() on x86
kvn
parents:
7602
diff
changeset
|
5670 Node *length = argument(4); |
|
b30b3c2a0cf2
6896617: Optimize sun.nio.cs.ISO_8859_1$Encode.encodeArrayLoop() on x86
kvn
parents:
7602
diff
changeset
|
5671 |
|
b30b3c2a0cf2
6896617: Optimize sun.nio.cs.ISO_8859_1$Encode.encodeArrayLoop() on x86
kvn
parents:
7602
diff
changeset
|
5672 const Type* src_type = src->Value(&_gvn); |
|
b30b3c2a0cf2
6896617: Optimize sun.nio.cs.ISO_8859_1$Encode.encodeArrayLoop() on x86
kvn
parents:
7602
diff
changeset
|
5673 const Type* dst_type = dst->Value(&_gvn); |
|
b30b3c2a0cf2
6896617: Optimize sun.nio.cs.ISO_8859_1$Encode.encodeArrayLoop() on x86
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parents:
7602
diff
changeset
|
5674 const TypeAryPtr* top_src = src_type->isa_aryptr(); |
|
b30b3c2a0cf2
6896617: Optimize sun.nio.cs.ISO_8859_1$Encode.encodeArrayLoop() on x86
kvn
parents:
7602
diff
changeset
|
5675 const TypeAryPtr* top_dest = dst_type->isa_aryptr(); |
|
b30b3c2a0cf2
6896617: Optimize sun.nio.cs.ISO_8859_1$Encode.encodeArrayLoop() on x86
kvn
parents:
7602
diff
changeset
|
5676 if (top_src == NULL || top_src->klass() == NULL || |
|
b30b3c2a0cf2
6896617: Optimize sun.nio.cs.ISO_8859_1$Encode.encodeArrayLoop() on x86
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parents:
7602
diff
changeset
|
5677 top_dest == NULL || top_dest->klass() == NULL) { |
|
b30b3c2a0cf2
6896617: Optimize sun.nio.cs.ISO_8859_1$Encode.encodeArrayLoop() on x86
kvn
parents:
7602
diff
changeset
|
5678 // failed array check |
|
b30b3c2a0cf2
6896617: Optimize sun.nio.cs.ISO_8859_1$Encode.encodeArrayLoop() on x86
kvn
parents:
7602
diff
changeset
|
5679 return false; |
|
b30b3c2a0cf2
6896617: Optimize sun.nio.cs.ISO_8859_1$Encode.encodeArrayLoop() on x86
kvn
parents:
7602
diff
changeset
|
5680 } |
|
b30b3c2a0cf2
6896617: Optimize sun.nio.cs.ISO_8859_1$Encode.encodeArrayLoop() on x86
kvn
parents:
7602
diff
changeset
|
5681 |
|
b30b3c2a0cf2
6896617: Optimize sun.nio.cs.ISO_8859_1$Encode.encodeArrayLoop() on x86
kvn
parents:
7602
diff
changeset
|
5682 // Figure out the size and type of the elements we will be copying. |
|
b30b3c2a0cf2
6896617: Optimize sun.nio.cs.ISO_8859_1$Encode.encodeArrayLoop() on x86
kvn
parents:
7602
diff
changeset
|
5683 BasicType src_elem = src_type->isa_aryptr()->klass()->as_array_klass()->element_type()->basic_type(); |
|
b30b3c2a0cf2
6896617: Optimize sun.nio.cs.ISO_8859_1$Encode.encodeArrayLoop() on x86
kvn
parents:
7602
diff
changeset
|
5684 BasicType dst_elem = dst_type->isa_aryptr()->klass()->as_array_klass()->element_type()->basic_type(); |
|
b30b3c2a0cf2
6896617: Optimize sun.nio.cs.ISO_8859_1$Encode.encodeArrayLoop() on x86
kvn
parents:
7602
diff
changeset
|
5685 if (src_elem != T_CHAR || dst_elem != T_BYTE) { |
|
b30b3c2a0cf2
6896617: Optimize sun.nio.cs.ISO_8859_1$Encode.encodeArrayLoop() on x86
kvn
parents:
7602
diff
changeset
|
5686 return false; |
|
b30b3c2a0cf2
6896617: Optimize sun.nio.cs.ISO_8859_1$Encode.encodeArrayLoop() on x86
kvn
parents:
7602
diff
changeset
|
5687 } |
|
b30b3c2a0cf2
6896617: Optimize sun.nio.cs.ISO_8859_1$Encode.encodeArrayLoop() on x86
kvn
parents:
7602
diff
changeset
|
5688 Node* src_start = array_element_address(src, src_offset, src_elem); |
|
b30b3c2a0cf2
6896617: Optimize sun.nio.cs.ISO_8859_1$Encode.encodeArrayLoop() on x86
kvn
parents:
7602
diff
changeset
|
5689 Node* dst_start = array_element_address(dst, dst_offset, dst_elem); |
|
b30b3c2a0cf2
6896617: Optimize sun.nio.cs.ISO_8859_1$Encode.encodeArrayLoop() on x86
kvn
parents:
7602
diff
changeset
|
5690 // 'src_start' points to src array + scaled offset |
|
b30b3c2a0cf2
6896617: Optimize sun.nio.cs.ISO_8859_1$Encode.encodeArrayLoop() on x86
kvn
parents:
7602
diff
changeset
|
5691 // 'dst_start' points to dst array + scaled offset |
|
b30b3c2a0cf2
6896617: Optimize sun.nio.cs.ISO_8859_1$Encode.encodeArrayLoop() on x86
kvn
parents:
7602
diff
changeset
|
5692 |
|
b30b3c2a0cf2
6896617: Optimize sun.nio.cs.ISO_8859_1$Encode.encodeArrayLoop() on x86
kvn
parents:
7602
diff
changeset
|
5693 const TypeAryPtr* mtype = TypeAryPtr::BYTES; |
|
b30b3c2a0cf2
6896617: Optimize sun.nio.cs.ISO_8859_1$Encode.encodeArrayLoop() on x86
kvn
parents:
7602
diff
changeset
|
5694 Node* enc = new (C) EncodeISOArrayNode(control(), memory(mtype), src_start, dst_start, length); |
|
b30b3c2a0cf2
6896617: Optimize sun.nio.cs.ISO_8859_1$Encode.encodeArrayLoop() on x86
kvn
parents:
7602
diff
changeset
|
5695 enc = _gvn.transform(enc); |
|
b30b3c2a0cf2
6896617: Optimize sun.nio.cs.ISO_8859_1$Encode.encodeArrayLoop() on x86
kvn
parents:
7602
diff
changeset
|
5696 Node* res_mem = _gvn.transform(new (C) SCMemProjNode(enc)); |
|
b30b3c2a0cf2
6896617: Optimize sun.nio.cs.ISO_8859_1$Encode.encodeArrayLoop() on x86
kvn
parents:
7602
diff
changeset
|
5697 set_memory(res_mem, mtype); |
|
b30b3c2a0cf2
6896617: Optimize sun.nio.cs.ISO_8859_1$Encode.encodeArrayLoop() on x86
kvn
parents:
7602
diff
changeset
|
5698 set_result(enc); |
|
b30b3c2a0cf2
6896617: Optimize sun.nio.cs.ISO_8859_1$Encode.encodeArrayLoop() on x86
kvn
parents:
7602
diff
changeset
|
5699 return true; |
|
b30b3c2a0cf2
6896617: Optimize sun.nio.cs.ISO_8859_1$Encode.encodeArrayLoop() on x86
kvn
parents:
7602
diff
changeset
|
5700 } |
|
b30b3c2a0cf2
6896617: Optimize sun.nio.cs.ISO_8859_1$Encode.encodeArrayLoop() on x86
kvn
parents:
7602
diff
changeset
|
5701 |
|
11080
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10405
diff
changeset
|
5702 /** |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10405
diff
changeset
|
5703 * Calculate CRC32 for byte. |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10405
diff
changeset
|
5704 * int java.util.zip.CRC32.update(int crc, int b) |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10405
diff
changeset
|
5705 */ |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10405
diff
changeset
|
5706 bool LibraryCallKit::inline_updateCRC32() { |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10405
diff
changeset
|
5707 assert(UseCRC32Intrinsics, "need AVX and LCMUL instructions support"); |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10405
diff
changeset
|
5708 assert(callee()->signature()->size() == 2, "update has 2 parameters"); |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10405
diff
changeset
|
5709 // no receiver since it is static method |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10405
diff
changeset
|
5710 Node* crc = argument(0); // type: int |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10405
diff
changeset
|
5711 Node* b = argument(1); // type: int |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10405
diff
changeset
|
5712 |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10405
diff
changeset
|
5713 /* |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10405
diff
changeset
|
5714 * int c = ~ crc; |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10405
diff
changeset
|
5715 * b = timesXtoThe32[(b ^ c) & 0xFF]; |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10405
diff
changeset
|
5716 * b = b ^ (c >>> 8); |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10405
diff
changeset
|
5717 * crc = ~b; |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10405
diff
changeset
|
5718 */ |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10405
diff
changeset
|
5719 |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10405
diff
changeset
|
5720 Node* M1 = intcon(-1); |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10405
diff
changeset
|
5721 crc = _gvn.transform(new (C) XorINode(crc, M1)); |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10405
diff
changeset
|
5722 Node* result = _gvn.transform(new (C) XorINode(crc, b)); |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10405
diff
changeset
|
5723 result = _gvn.transform(new (C) AndINode(result, intcon(0xFF))); |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10405
diff
changeset
|
5724 |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10405
diff
changeset
|
5725 Node* base = makecon(TypeRawPtr::make(StubRoutines::crc_table_addr())); |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10405
diff
changeset
|
5726 Node* offset = _gvn.transform(new (C) LShiftINode(result, intcon(0x2))); |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10405
diff
changeset
|
5727 Node* adr = basic_plus_adr(top(), base, ConvI2X(offset)); |
|
14429
2113136690bc
8024921: PPC64 (part 113): Extend Load and Store nodes to know about memory ordering
goetz
parents:
13019
diff
changeset
|
5728 result = make_load(control(), adr, TypeInt::INT, T_INT, MemNode::unordered); |
|
11080
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10405
diff
changeset
|
5729 |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10405
diff
changeset
|
5730 crc = _gvn.transform(new (C) URShiftINode(crc, intcon(8))); |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10405
diff
changeset
|
5731 result = _gvn.transform(new (C) XorINode(crc, result)); |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10405
diff
changeset
|
5732 result = _gvn.transform(new (C) XorINode(result, M1)); |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10405
diff
changeset
|
5733 set_result(result); |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10405
diff
changeset
|
5734 return true; |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10405
diff
changeset
|
5735 } |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10405
diff
changeset
|
5736 |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10405
diff
changeset
|
5737 /** |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10405
diff
changeset
|
5738 * Calculate CRC32 for byte[] array. |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10405
diff
changeset
|
5739 * int java.util.zip.CRC32.updateBytes(int crc, byte[] buf, int off, int len) |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10405
diff
changeset
|
5740 */ |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10405
diff
changeset
|
5741 bool LibraryCallKit::inline_updateBytesCRC32() { |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10405
diff
changeset
|
5742 assert(UseCRC32Intrinsics, "need AVX and LCMUL instructions support"); |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10405
diff
changeset
|
5743 assert(callee()->signature()->size() == 4, "updateBytes has 4 parameters"); |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10405
diff
changeset
|
5744 // no receiver since it is static method |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10405
diff
changeset
|
5745 Node* crc = argument(0); // type: int |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10405
diff
changeset
|
5746 Node* src = argument(1); // type: oop |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10405
diff
changeset
|
5747 Node* offset = argument(2); // type: int |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10405
diff
changeset
|
5748 Node* length = argument(3); // type: int |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10405
diff
changeset
|
5749 |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10405
diff
changeset
|
5750 const Type* src_type = src->Value(&_gvn); |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10405
diff
changeset
|
5751 const TypeAryPtr* top_src = src_type->isa_aryptr(); |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10405
diff
changeset
|
5752 if (top_src == NULL || top_src->klass() == NULL) { |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10405
diff
changeset
|
5753 // failed array check |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10405
diff
changeset
|
5754 return false; |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10405
diff
changeset
|
5755 } |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10405
diff
changeset
|
5756 |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10405
diff
changeset
|
5757 // Figure out the size and type of the elements we will be copying. |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10405
diff
changeset
|
5758 BasicType src_elem = src_type->isa_aryptr()->klass()->as_array_klass()->element_type()->basic_type(); |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10405
diff
changeset
|
5759 if (src_elem != T_BYTE) { |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10405
diff
changeset
|
5760 return false; |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10405
diff
changeset
|
5761 } |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10405
diff
changeset
|
5762 |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10405
diff
changeset
|
5763 // 'src_start' points to src array + scaled offset |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10405
diff
changeset
|
5764 Node* src_start = array_element_address(src, offset, src_elem); |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10405
diff
changeset
|
5765 |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10405
diff
changeset
|
5766 // We assume that range check is done by caller. |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10405
diff
changeset
|
5767 // TODO: generate range check (offset+length < src.length) in debug VM. |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10405
diff
changeset
|
5768 |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10405
diff
changeset
|
5769 // Call the stub. |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10405
diff
changeset
|
5770 address stubAddr = StubRoutines::updateBytesCRC32(); |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10405
diff
changeset
|
5771 const char *stubName = "updateBytesCRC32"; |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10405
diff
changeset
|
5772 |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10405
diff
changeset
|
5773 Node* call = make_runtime_call(RC_LEAF|RC_NO_FP, OptoRuntime::updateBytesCRC32_Type(), |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10405
diff
changeset
|
5774 stubAddr, stubName, TypePtr::BOTTOM, |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10405
diff
changeset
|
5775 crc, src_start, length); |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10405
diff
changeset
|
5776 Node* result = _gvn.transform(new (C) ProjNode(call, TypeFunc::Parms)); |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10405
diff
changeset
|
5777 set_result(result); |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10405
diff
changeset
|
5778 return true; |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10405
diff
changeset
|
5779 } |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10405
diff
changeset
|
5780 |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10405
diff
changeset
|
5781 /** |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10405
diff
changeset
|
5782 * Calculate CRC32 for ByteBuffer. |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10405
diff
changeset
|
5783 * int java.util.zip.CRC32.updateByteBuffer(int crc, long buf, int off, int len) |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10405
diff
changeset
|
5784 */ |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10405
diff
changeset
|
5785 bool LibraryCallKit::inline_updateByteBufferCRC32() { |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10405
diff
changeset
|
5786 assert(UseCRC32Intrinsics, "need AVX and LCMUL instructions support"); |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10405
diff
changeset
|
5787 assert(callee()->signature()->size() == 5, "updateByteBuffer has 4 parameters and one is long"); |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10405
diff
changeset
|
5788 // no receiver since it is static method |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10405
diff
changeset
|
5789 Node* crc = argument(0); // type: int |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10405
diff
changeset
|
5790 Node* src = argument(1); // type: long |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10405
diff
changeset
|
5791 Node* offset = argument(3); // type: int |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10405
diff
changeset
|
5792 Node* length = argument(4); // type: int |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10405
diff
changeset
|
5793 |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10405
diff
changeset
|
5794 src = ConvL2X(src); // adjust Java long to machine word |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10405
diff
changeset
|
5795 Node* base = _gvn.transform(new (C) CastX2PNode(src)); |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10405
diff
changeset
|
5796 offset = ConvI2X(offset); |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10405
diff
changeset
|
5797 |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10405
diff
changeset
|
5798 // 'src_start' points to src array + scaled offset |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10405
diff
changeset
|
5799 Node* src_start = basic_plus_adr(top(), base, offset); |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10405
diff
changeset
|
5800 |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10405
diff
changeset
|
5801 // Call the stub. |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10405
diff
changeset
|
5802 address stubAddr = StubRoutines::updateBytesCRC32(); |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10405
diff
changeset
|
5803 const char *stubName = "updateBytesCRC32"; |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10405
diff
changeset
|
5804 |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10405
diff
changeset
|
5805 Node* call = make_runtime_call(RC_LEAF|RC_NO_FP, OptoRuntime::updateBytesCRC32_Type(), |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10405
diff
changeset
|
5806 stubAddr, stubName, TypePtr::BOTTOM, |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10405
diff
changeset
|
5807 crc, src_start, length); |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10405
diff
changeset
|
5808 Node* result = _gvn.transform(new (C) ProjNode(call, TypeFunc::Parms)); |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10405
diff
changeset
|
5809 set_result(result); |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10405
diff
changeset
|
5810 return true; |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10405
diff
changeset
|
5811 } |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10405
diff
changeset
|
5812 |
|
3249
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2385
diff
changeset
|
5813 //----------------------------inline_reference_get---------------------------- |
|
7194
beebba0acc11
7172640: C2: instrinsic implementations in LibraryCallKit should use argument() instead of pop()
twisti
parents:
6894
diff
changeset
|
5814 // public T java.lang.ref.Reference.get(); |
|
3249
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2385
diff
changeset
|
5815 bool LibraryCallKit::inline_reference_get() { |
|
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|
5816 const int referent_offset = java_lang_ref_Reference::referent_offset; |
|
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|
5817 guarantee(referent_offset > 0, "should have already been set"); |
|
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|
5818 |
|
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|
5819 // Get the argument: |
|
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|
5820 Node* reference_obj = null_check_receiver(); |
|
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e1162778c1c8
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|
5821 if (stopped()) return true; |
|
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|
5822 |
|
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|
5823 Node* adr = basic_plus_adr(reference_obj, reference_obj, referent_offset); |
|
3249
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|
5824 |
|
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|
5825 ciInstanceKlass* klass = env()->Object_klass(); |
|
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|
5826 const TypeOopPtr* object_type = TypeOopPtr::make_from_klass(klass); |
|
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|
5827 |
|
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|
5828 Node* no_ctrl = NULL; |
|
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|
5829 Node* result = make_load(no_ctrl, adr, object_type, T_OBJECT, MemNode::unordered); |
|
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|
5830 |
|
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|
5831 // Use the pre-barrier to record the value in the referent field |
|
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|
5832 pre_barrier(false /* do_load */, |
|
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|
5833 control(), |
|
3258
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|
5834 NULL /* obj */, NULL /* adr */, max_juint /* alias_idx */, NULL /* val */, NULL /* val_type */, |
|
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|
5835 result /* pre_val */, |
|
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|
5836 T_OBJECT); |
|
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|
5837 |
|
6615
09aad8452938
7190310: Inlining WeakReference.get(), and hoisting $referent may lead to non-terminating loops
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changeset
|
5838 // Add memory barrier to prevent commoning reads from this field |
|
09aad8452938
7190310: Inlining WeakReference.get(), and hoisting $referent may lead to non-terminating loops
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|
5839 // across safepoint since GC can change its value. |
|
09aad8452938
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|
5840 insert_mem_bar(Op_MemBarCPUOrder); |
|
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|
5841 |
|
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|
5842 set_result(result); |
|
3249
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|
5843 return true; |
|
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|
5844 } |
| 6894 | 5845 |
| 5846 | |
| 5847 Node * LibraryCallKit::load_field_from_object(Node * fromObj, const char * fieldName, const char * fieldTypeString, | |
| 5848 bool is_exact=true, bool is_static=false) { | |
| 5849 | |
| 5850 const TypeInstPtr* tinst = _gvn.type(fromObj)->isa_instptr(); | |
| 5851 assert(tinst != NULL, "obj is null"); | |
| 5852 assert(tinst->klass()->is_loaded(), "obj is not loaded"); | |
| 5853 assert(!is_exact || tinst->klass_is_exact(), "klass not exact"); | |
| 5854 | |
| 5855 ciField* field = tinst->klass()->as_instance_klass()->get_field_by_name(ciSymbol::make(fieldName), | |
| 5856 ciSymbol::make(fieldTypeString), | |
| 5857 is_static); | |
| 5858 if (field == NULL) return (Node *) NULL; | |
| 5859 assert (field != NULL, "undefined field"); | |
| 5860 | |
| 5861 // Next code copied from Parse::do_get_xxx(): | |
| 5862 | |
| 5863 // Compute address and memory type. | |
| 5864 int offset = field->offset_in_bytes(); | |
| 5865 bool is_vol = field->is_volatile(); | |
| 5866 ciType* field_klass = field->type(); | |
| 5867 assert(field_klass->is_loaded(), "should be loaded"); | |
| 5868 const TypePtr* adr_type = C->alias_type(field)->adr_type(); | |
| 5869 Node *adr = basic_plus_adr(fromObj, fromObj, offset); | |
| 5870 BasicType bt = field->layout_type(); | |
| 5871 | |
| 5872 // Build the resultant type of the load | |
|
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|
5873 const Type *type; |
|
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|
5874 if (bt == T_OBJECT) { |
|
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|
5875 type = TypeOopPtr::make_from_klass(field_klass->as_klass()); |
|
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|
5876 } else { |
|
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|
5877 type = Type::get_const_basic_type(bt); |
|
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|
5878 } |
| 6894 | 5879 |
| 5880 // Build the load. | |
|
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|
5881 Node* loadedField = make_load(NULL, adr, type, bt, adr_type, MemNode::unordered, is_vol); |
| 6894 | 5882 return loadedField; |
| 5883 } | |
| 5884 | |
| 5885 | |
| 5886 //------------------------------inline_aescrypt_Block----------------------- | |
| 5887 bool LibraryCallKit::inline_aescrypt_Block(vmIntrinsics::ID id) { | |
| 5888 address stubAddr; | |
| 5889 const char *stubName; | |
| 5890 assert(UseAES, "need AES instruction support"); | |
| 5891 | |
| 5892 switch(id) { | |
| 5893 case vmIntrinsics::_aescrypt_encryptBlock: | |
| 5894 stubAddr = StubRoutines::aescrypt_encryptBlock(); | |
| 5895 stubName = "aescrypt_encryptBlock"; | |
| 5896 break; | |
| 5897 case vmIntrinsics::_aescrypt_decryptBlock: | |
| 5898 stubAddr = StubRoutines::aescrypt_decryptBlock(); | |
| 5899 stubName = "aescrypt_decryptBlock"; | |
| 5900 break; | |
| 5901 } | |
| 5902 if (stubAddr == NULL) return false; | |
| 5903 | |
|
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|
5904 Node* aescrypt_object = argument(0); |
|
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|
5905 Node* src = argument(1); |
|
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|
5906 Node* src_offset = argument(2); |
|
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|
5907 Node* dest = argument(3); |
|
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|
5908 Node* dest_offset = argument(4); |
| 6894 | 5909 |
| 5910 // (1) src and dest are arrays. | |
| 5911 const Type* src_type = src->Value(&_gvn); | |
| 5912 const Type* dest_type = dest->Value(&_gvn); | |
| 5913 const TypeAryPtr* top_src = src_type->isa_aryptr(); | |
| 5914 const TypeAryPtr* top_dest = dest_type->isa_aryptr(); | |
| 5915 assert (top_src != NULL && top_src->klass() != NULL && top_dest != NULL && top_dest->klass() != NULL, "args are strange"); | |
| 5916 | |
| 5917 // for the quick and dirty code we will skip all the checks. | |
| 5918 // we are just trying to get the call to be generated. | |
| 5919 Node* src_start = src; | |
| 5920 Node* dest_start = dest; | |
| 5921 if (src_offset != NULL || dest_offset != NULL) { | |
| 5922 assert(src_offset != NULL && dest_offset != NULL, ""); | |
| 5923 src_start = array_element_address(src, src_offset, T_BYTE); | |
| 5924 dest_start = array_element_address(dest, dest_offset, T_BYTE); | |
| 5925 } | |
| 5926 | |
| 5927 // now need to get the start of its expanded key array | |
| 5928 // this requires a newer class file that has this array as littleEndian ints, otherwise we revert to java | |
| 5929 Node* k_start = get_key_start_from_aescrypt_object(aescrypt_object); | |
| 5930 if (k_start == NULL) return false; | |
| 5931 | |
| 17670 | 5932 if (Matcher::pass_original_key_for_aes()) { |
| 5933 // on SPARC we need to pass the original key since key expansion needs to happen in intrinsics due to | |
| 5934 // compatibility issues between Java key expansion and SPARC crypto instructions | |
| 5935 Node* original_k_start = get_original_key_start_from_aescrypt_object(aescrypt_object); | |
| 5936 if (original_k_start == NULL) return false; | |
| 5937 | |
| 5938 // Call the stub. | |
| 5939 make_runtime_call(RC_LEAF|RC_NO_FP, OptoRuntime::aescrypt_block_Type(), | |
| 5940 stubAddr, stubName, TypePtr::BOTTOM, | |
| 5941 src_start, dest_start, k_start, original_k_start); | |
| 5942 } else { | |
| 5943 // Call the stub. | |
| 5944 make_runtime_call(RC_LEAF|RC_NO_FP, OptoRuntime::aescrypt_block_Type(), | |
| 5945 stubAddr, stubName, TypePtr::BOTTOM, | |
| 5946 src_start, dest_start, k_start); | |
| 5947 } | |
| 6894 | 5948 |
| 5949 return true; | |
| 5950 } | |
| 5951 | |
| 5952 //------------------------------inline_cipherBlockChaining_AESCrypt----------------------- | |
| 5953 bool LibraryCallKit::inline_cipherBlockChaining_AESCrypt(vmIntrinsics::ID id) { | |
| 5954 address stubAddr; | |
| 5955 const char *stubName; | |
| 5956 | |
| 5957 assert(UseAES, "need AES instruction support"); | |
| 5958 | |
| 5959 switch(id) { | |
| 5960 case vmIntrinsics::_cipherBlockChaining_encryptAESCrypt: | |
| 5961 stubAddr = StubRoutines::cipherBlockChaining_encryptAESCrypt(); | |
| 5962 stubName = "cipherBlockChaining_encryptAESCrypt"; | |
| 5963 break; | |
| 5964 case vmIntrinsics::_cipherBlockChaining_decryptAESCrypt: | |
| 5965 stubAddr = StubRoutines::cipherBlockChaining_decryptAESCrypt(); | |
| 5966 stubName = "cipherBlockChaining_decryptAESCrypt"; | |
| 5967 break; | |
| 5968 } | |
| 5969 if (stubAddr == NULL) return false; | |
| 5970 | |
|
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|
5971 Node* cipherBlockChaining_object = argument(0); |
|
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|
5972 Node* src = argument(1); |
|
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|
5973 Node* src_offset = argument(2); |
|
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|
5974 Node* len = argument(3); |
|
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|
5975 Node* dest = argument(4); |
|
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|
5976 Node* dest_offset = argument(5); |
| 6894 | 5977 |
| 5978 // (1) src and dest are arrays. | |
| 5979 const Type* src_type = src->Value(&_gvn); | |
| 5980 const Type* dest_type = dest->Value(&_gvn); | |
| 5981 const TypeAryPtr* top_src = src_type->isa_aryptr(); | |
| 5982 const TypeAryPtr* top_dest = dest_type->isa_aryptr(); | |
| 5983 assert (top_src != NULL && top_src->klass() != NULL | |
| 5984 && top_dest != NULL && top_dest->klass() != NULL, "args are strange"); | |
| 5985 | |
| 5986 // checks are the responsibility of the caller | |
| 5987 Node* src_start = src; | |
| 5988 Node* dest_start = dest; | |
| 5989 if (src_offset != NULL || dest_offset != NULL) { | |
| 5990 assert(src_offset != NULL && dest_offset != NULL, ""); | |
| 5991 src_start = array_element_address(src, src_offset, T_BYTE); | |
| 5992 dest_start = array_element_address(dest, dest_offset, T_BYTE); | |
| 5993 } | |
| 5994 | |
| 5995 // if we are in this set of code, we "know" the embeddedCipher is an AESCrypt object | |
| 5996 // (because of the predicated logic executed earlier). | |
| 5997 // so we cast it here safely. | |
| 5998 // this requires a newer class file that has this array as littleEndian ints, otherwise we revert to java | |
| 5999 | |
| 6000 Node* embeddedCipherObj = load_field_from_object(cipherBlockChaining_object, "embeddedCipher", "Lcom/sun/crypto/provider/SymmetricCipher;", /*is_exact*/ false); | |
| 6001 if (embeddedCipherObj == NULL) return false; | |
| 6002 | |
| 6003 // cast it to what we know it will be at runtime | |
| 6004 const TypeInstPtr* tinst = _gvn.type(cipherBlockChaining_object)->isa_instptr(); | |
| 6005 assert(tinst != NULL, "CBC obj is null"); | |
| 6006 assert(tinst->klass()->is_loaded(), "CBC obj is not loaded"); | |
| 6007 ciKlass* klass_AESCrypt = tinst->klass()->as_instance_klass()->find_klass(ciSymbol::make("com/sun/crypto/provider/AESCrypt")); | |
|
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|
6008 assert(klass_AESCrypt->is_loaded(), "predicate checks that this class is loaded"); |
| 6894 | 6009 |
| 6010 ciInstanceKlass* instklass_AESCrypt = klass_AESCrypt->as_instance_klass(); | |
| 6011 const TypeKlassPtr* aklass = TypeKlassPtr::make(instklass_AESCrypt); | |
| 6012 const TypeOopPtr* xtype = aklass->as_instance_type(); | |
| 6013 Node* aescrypt_object = new(C) CheckCastPPNode(control(), embeddedCipherObj, xtype); | |
| 6014 aescrypt_object = _gvn.transform(aescrypt_object); | |
| 6015 | |
| 6016 // we need to get the start of the aescrypt_object's expanded key array | |
| 6017 Node* k_start = get_key_start_from_aescrypt_object(aescrypt_object); | |
| 6018 if (k_start == NULL) return false; | |
| 6019 | |
| 6020 // similarly, get the start address of the r vector | |
| 6021 Node* objRvec = load_field_from_object(cipherBlockChaining_object, "r", "[B", /*is_exact*/ false); | |
| 6022 if (objRvec == NULL) return false; | |
| 6023 Node* r_start = array_element_address(objRvec, intcon(0), T_BYTE); | |
| 6024 | |
| 17670 | 6025 Node* cbcCrypt; |
| 6026 if (Matcher::pass_original_key_for_aes()) { | |
| 6027 // on SPARC we need to pass the original key since key expansion needs to happen in intrinsics due to | |
| 6028 // compatibility issues between Java key expansion and SPARC crypto instructions | |
| 6029 Node* original_k_start = get_original_key_start_from_aescrypt_object(aescrypt_object); | |
| 6030 if (original_k_start == NULL) return false; | |
| 6031 | |
| 6032 // Call the stub, passing src_start, dest_start, k_start, r_start, src_len and original_k_start | |
| 6033 cbcCrypt = make_runtime_call(RC_LEAF|RC_NO_FP, | |
| 6034 OptoRuntime::cipherBlockChaining_aescrypt_Type(), | |
| 6035 stubAddr, stubName, TypePtr::BOTTOM, | |
| 6036 src_start, dest_start, k_start, r_start, len, original_k_start); | |
| 6037 } else { | |
| 6038 // Call the stub, passing src_start, dest_start, k_start, r_start and src_len | |
| 6039 cbcCrypt = make_runtime_call(RC_LEAF|RC_NO_FP, | |
| 6040 OptoRuntime::cipherBlockChaining_aescrypt_Type(), | |
| 6041 stubAddr, stubName, TypePtr::BOTTOM, | |
| 6042 src_start, dest_start, k_start, r_start, len); | |
| 6043 } | |
| 6044 | |
| 6045 // return cipher length (int) | |
| 6046 Node* retvalue = _gvn.transform(new (C) ProjNode(cbcCrypt, TypeFunc::Parms)); | |
| 6047 set_result(retvalue); | |
| 6894 | 6048 return true; |
| 6049 } | |
| 6050 | |
| 6051 //------------------------------get_key_start_from_aescrypt_object----------------------- | |
| 6052 Node * LibraryCallKit::get_key_start_from_aescrypt_object(Node *aescrypt_object) { | |
| 6053 Node* objAESCryptKey = load_field_from_object(aescrypt_object, "K", "[I", /*is_exact*/ false); | |
| 6054 assert (objAESCryptKey != NULL, "wrong version of com.sun.crypto.provider.AESCrypt"); | |
| 6055 if (objAESCryptKey == NULL) return (Node *) NULL; | |
| 6056 | |
| 6057 // now have the array, need to get the start address of the K array | |
| 6058 Node* k_start = array_element_address(objAESCryptKey, intcon(0), T_INT); | |
| 6059 return k_start; | |
| 6060 } | |
| 6061 | |
| 17670 | 6062 //------------------------------get_original_key_start_from_aescrypt_object----------------------- |
| 6063 Node * LibraryCallKit::get_original_key_start_from_aescrypt_object(Node *aescrypt_object) { | |
| 6064 Node* objAESCryptKey = load_field_from_object(aescrypt_object, "lastKey", "[B", /*is_exact*/ false); | |
| 6065 assert (objAESCryptKey != NULL, "wrong version of com.sun.crypto.provider.AESCrypt"); | |
| 6066 if (objAESCryptKey == NULL) return (Node *) NULL; | |
| 6067 | |
| 6068 // now have the array, need to get the start address of the lastKey array | |
| 6069 Node* original_k_start = array_element_address(objAESCryptKey, intcon(0), T_BYTE); | |
| 6070 return original_k_start; | |
| 6071 } | |
| 6072 | |
| 6894 | 6073 //----------------------------inline_cipherBlockChaining_AESCrypt_predicate---------------------------- |
| 6074 // Return node representing slow path of predicate check. | |
| 6075 // the pseudo code we want to emulate with this predicate is: | |
| 6076 // for encryption: | |
| 6077 // if (embeddedCipherObj instanceof AESCrypt) do_intrinsic, else do_javapath | |
| 6078 // for decryption: | |
| 6079 // if ((embeddedCipherObj instanceof AESCrypt) && (cipher!=plain)) do_intrinsic, else do_javapath | |
| 6080 // note cipher==plain is more conservative than the original java code but that's OK | |
| 6081 // | |
| 6082 Node* LibraryCallKit::inline_cipherBlockChaining_AESCrypt_predicate(bool decrypting) { | |
|
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|
6083 // The receiver was checked for NULL already. |
| 6894 | 6084 Node* objCBC = argument(0); |
| 6085 | |
| 6086 // Load embeddedCipher field of CipherBlockChaining object. | |
| 6087 Node* embeddedCipherObj = load_field_from_object(objCBC, "embeddedCipher", "Lcom/sun/crypto/provider/SymmetricCipher;", /*is_exact*/ false); | |
| 6088 | |
| 6089 // get AESCrypt klass for instanceOf check | |
| 6090 // AESCrypt might not be loaded yet if some other SymmetricCipher got us to this compile point | |
| 6091 // will have same classloader as CipherBlockChaining object | |
| 6092 const TypeInstPtr* tinst = _gvn.type(objCBC)->isa_instptr(); | |
| 6093 assert(tinst != NULL, "CBCobj is null"); | |
| 6094 assert(tinst->klass()->is_loaded(), "CBCobj is not loaded"); | |
| 6095 | |
| 6096 // we want to do an instanceof comparison against the AESCrypt class | |
| 6097 ciKlass* klass_AESCrypt = tinst->klass()->as_instance_klass()->find_klass(ciSymbol::make("com/sun/crypto/provider/AESCrypt")); | |
| 6098 if (!klass_AESCrypt->is_loaded()) { | |
| 6099 // if AESCrypt is not even loaded, we never take the intrinsic fast path | |
| 6100 Node* ctrl = control(); | |
| 6101 set_control(top()); // no regular fast path | |
| 6102 return ctrl; | |
| 6103 } | |
| 6104 ciInstanceKlass* instklass_AESCrypt = klass_AESCrypt->as_instance_klass(); | |
| 6105 | |
| 6106 Node* instof = gen_instanceof(embeddedCipherObj, makecon(TypeKlassPtr::make(instklass_AESCrypt))); | |
| 6107 Node* cmp_instof = _gvn.transform(new (C) CmpINode(instof, intcon(1))); | |
| 6108 Node* bool_instof = _gvn.transform(new (C) BoolNode(cmp_instof, BoolTest::ne)); | |
| 6109 | |
| 6110 Node* instof_false = generate_guard(bool_instof, NULL, PROB_MIN); | |
| 6111 | |
| 6112 // for encryption, we are done | |
| 6113 if (!decrypting) | |
| 6114 return instof_false; // even if it is NULL | |
| 6115 | |
| 6116 // for decryption, we need to add a further check to avoid | |
| 6117 // taking the intrinsic path when cipher and plain are the same | |
| 6118 // see the original java code for why. | |
| 6119 RegionNode* region = new(C) RegionNode(3); | |
| 6120 region->init_req(1, instof_false); | |
| 6121 Node* src = argument(1); | |
|
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7172640: C2: instrinsic implementations in LibraryCallKit should use argument() instead of pop()
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6894
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changeset
|
6122 Node* dest = argument(4); |
| 6894 | 6123 Node* cmp_src_dest = _gvn.transform(new (C) CmpPNode(src, dest)); |
| 6124 Node* bool_src_dest = _gvn.transform(new (C) BoolNode(cmp_src_dest, BoolTest::eq)); | |
| 6125 Node* src_dest_conjoint = generate_guard(bool_src_dest, NULL, PROB_MIN); | |
| 6126 region->init_req(2, src_dest_conjoint); | |
| 6127 | |
| 6128 record_for_igvn(region); | |
| 6129 return _gvn.transform(region); | |
| 6130 } |