Mercurial > hg > truffle
annotate src/share/vm/ci/ciMethod.hpp @ 1783:d5d065957597
6953144: Tiered compilation
Summary: Infrastructure for tiered compilation support (interpreter + c1 + c2) for 32 and 64 bit. Simple tiered policy implementation.
Reviewed-by: kvn, never, phh, twisti
| author | iveresov |
|---|---|
| date | Fri, 03 Sep 2010 17:51:07 -0700 |
| parents | d2ede61b7a12 |
| children | f95d63e2154a |
| rev | line source |
|---|---|
| 0 | 1 /* |
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2 * Copyright (c) 1999, 2010, 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 | |
| 25 class ciMethodBlocks; | |
| 26 class MethodLiveness; | |
| 27 class BitMap; | |
| 28 class Arena; | |
| 29 class BCEscapeAnalyzer; | |
| 30 | |
| 31 | |
| 32 // ciMethod | |
| 33 // | |
| 34 // This class represents a methodOop in the HotSpot virtual | |
| 35 // machine. | |
| 36 class ciMethod : public ciObject { | |
| 37 friend class CompileBroker; | |
| 38 CI_PACKAGE_ACCESS | |
| 39 friend class ciEnv; | |
| 40 friend class ciExceptionHandlerStream; | |
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41 friend class ciBytecodeStream; |
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42 friend class ciMethodHandle; |
| 0 | 43 |
| 44 private: | |
| 45 // General method information. | |
| 46 ciFlags _flags; | |
| 47 ciSymbol* _name; | |
| 48 ciInstanceKlass* _holder; | |
| 49 ciSignature* _signature; | |
| 50 ciMethodData* _method_data; | |
| 51 ciMethodBlocks* _method_blocks; | |
| 52 | |
| 53 // Code attributes. | |
| 54 int _code_size; | |
| 55 int _max_stack; | |
| 56 int _max_locals; | |
| 57 vmIntrinsics::ID _intrinsic_id; | |
| 58 int _handler_count; | |
| 59 int _interpreter_invocation_count; | |
| 60 int _interpreter_throwout_count; | |
| 61 | |
| 62 bool _uses_monitors; | |
| 63 bool _balanced_monitors; | |
| 1783 | 64 bool _is_c1_compilable; |
| 65 bool _is_c2_compilable; | |
| 0 | 66 bool _can_be_statically_bound; |
| 67 | |
| 68 // Lazy fields, filled in on demand | |
| 69 address _code; | |
| 70 ciExceptionHandler** _exception_handlers; | |
| 71 | |
| 72 // Optional liveness analyzer. | |
| 73 MethodLiveness* _liveness; | |
| 1692 | 74 #if defined(COMPILER2) || defined(SHARK) |
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75 ciTypeFlow* _flow; |
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76 BCEscapeAnalyzer* _bcea; |
| 0 | 77 #endif |
| 78 | |
| 79 ciMethod(methodHandle h_m); | |
| 80 ciMethod(ciInstanceKlass* holder, ciSymbol* name, ciSymbol* signature); | |
| 81 | |
| 82 methodOop get_methodOop() const { | |
| 83 methodOop m = (methodOop)get_oop(); | |
| 84 assert(m != NULL, "illegal use of unloaded method"); | |
| 85 return m; | |
| 86 } | |
| 87 | |
| 88 oop loader() const { return _holder->loader(); } | |
| 89 | |
| 90 const char* type_string() { return "ciMethod"; } | |
| 91 | |
| 92 void print_impl(outputStream* st); | |
| 93 | |
| 94 void load_code(); | |
| 95 | |
| 96 void check_is_loaded() const { assert(is_loaded(), "not loaded"); } | |
| 97 | |
| 98 void build_method_data(methodHandle h_m); | |
| 99 | |
| 100 void code_at_put(int bci, Bytecodes::Code code) { | |
| 101 Bytecodes::check(code); | |
| 102 assert(0 <= bci && bci < code_size(), "valid bci"); | |
| 103 address bcp = _code + bci; | |
| 104 *bcp = code; | |
| 105 } | |
| 106 | |
| 107 public: | |
| 108 // Basic method information. | |
| 109 ciFlags flags() const { check_is_loaded(); return _flags; } | |
| 110 ciSymbol* name() const { return _name; } | |
| 111 ciInstanceKlass* holder() const { return _holder; } | |
| 112 ciMethodData* method_data(); | |
| 113 | |
| 114 // Signature information. | |
| 115 ciSignature* signature() const { return _signature; } | |
| 116 ciType* return_type() const { return _signature->return_type(); } | |
| 117 int arg_size_no_receiver() const { return _signature->size(); } | |
| 118 int arg_size() const { return _signature->size() + (_flags.is_static() ? 0 : 1); } | |
| 119 | |
| 120 // Method code and related information. | |
| 121 address code() { if (_code == NULL) load_code(); return _code; } | |
| 122 int code_size() const { check_is_loaded(); return _code_size; } | |
| 123 int max_stack() const { check_is_loaded(); return _max_stack; } | |
| 124 int max_locals() const { check_is_loaded(); return _max_locals; } | |
| 125 vmIntrinsics::ID intrinsic_id() const { check_is_loaded(); return _intrinsic_id; } | |
| 126 bool has_exception_handlers() const { check_is_loaded(); return _handler_count > 0; } | |
| 127 int exception_table_length() const { check_is_loaded(); return _handler_count; } | |
| 128 int interpreter_invocation_count() const { check_is_loaded(); return _interpreter_invocation_count; } | |
| 129 int interpreter_throwout_count() const { check_is_loaded(); return _interpreter_throwout_count; } | |
| 130 | |
| 1783 | 131 int comp_level(); |
| 132 | |
| 0 | 133 Bytecodes::Code java_code_at_bci(int bci) { |
| 134 address bcp = code() + bci; | |
| 135 return Bytecodes::java_code_at(bcp); | |
| 136 } | |
| 137 BCEscapeAnalyzer *get_bcea(); | |
| 138 ciMethodBlocks *get_method_blocks(); | |
| 139 | |
| 140 bool has_linenumber_table() const; // length unknown until decompression | |
| 141 u_char* compressed_linenumber_table() const; // not preserved by gc | |
| 142 | |
| 143 int line_number_from_bci(int bci) const; | |
| 144 | |
| 145 // Runtime information. | |
| 146 int vtable_index(); | |
| 1692 | 147 #ifdef SHARK |
| 148 int itable_index(); | |
| 149 #endif // SHARK | |
| 0 | 150 address native_entry(); |
| 151 address interpreter_entry(); | |
| 152 | |
| 153 // Analysis and profiling. | |
| 154 // | |
| 155 // Usage note: liveness_at_bci and init_vars should be wrapped in ResourceMarks. | |
| 156 bool uses_monitors() const { return _uses_monitors; } // this one should go away, it has a misleading name | |
| 157 bool has_monitor_bytecodes() const { return _uses_monitors; } | |
| 158 bool has_balanced_monitors(); | |
| 159 | |
| 991 | 160 // Returns a bitmap indicating which locals are required to be |
| 161 // maintained as live for deopt. raw_liveness_at_bci is always the | |
| 162 // direct output of the liveness computation while liveness_at_bci | |
| 163 // may mark all locals as live to improve support for debugging Java | |
| 164 // code by maintaining the state of as many locals as possible. | |
| 165 MethodLivenessResult raw_liveness_at_bci(int bci); | |
| 0 | 166 MethodLivenessResult liveness_at_bci(int bci); |
| 167 | |
| 168 // Get the interpreters viewpoint on oop liveness. MethodLiveness is | |
| 169 // conservative in the sense that it may consider locals to be live which | |
| 170 // cannot be live, like in the case where a local could contain an oop or | |
| 171 // a primitive along different paths. In that case the local must be | |
| 172 // dead when those paths merge. Since the interpreter's viewpoint is | |
| 173 // used when gc'ing an interpreter frame we need to use its viewpoint | |
| 174 // during OSR when loading the locals. | |
| 175 | |
| 176 BitMap live_local_oops_at_bci(int bci); | |
| 177 | |
| 178 #ifdef COMPILER1 | |
| 179 const BitMap bci_block_start(); | |
| 180 #endif | |
| 181 | |
| 182 ciTypeFlow* get_flow_analysis(); | |
| 183 ciTypeFlow* get_osr_flow_analysis(int osr_bci); // alternate entry point | |
| 184 ciCallProfile call_profile_at_bci(int bci); | |
| 185 int interpreter_call_site_count(int bci); | |
| 186 | |
| 187 // Given a certain calling environment, find the monomorphic target | |
| 188 // for the call. Return NULL if the call is not monomorphic in | |
| 189 // its calling environment. | |
| 190 ciMethod* find_monomorphic_target(ciInstanceKlass* caller, | |
| 191 ciInstanceKlass* callee_holder, | |
| 192 ciInstanceKlass* actual_receiver); | |
| 193 | |
| 194 // Given a known receiver klass, find the target for the call. | |
| 195 // Return NULL if the call has no target or is abstract. | |
| 196 ciMethod* resolve_invoke(ciKlass* caller, ciKlass* exact_receiver); | |
| 197 | |
| 198 // Find the proper vtable index to invoke this method. | |
| 199 int resolve_vtable_index(ciKlass* caller, ciKlass* receiver); | |
| 200 | |
| 201 // Compilation directives | |
| 202 bool will_link(ciKlass* accessing_klass, | |
| 203 ciKlass* declared_method_holder, | |
| 204 Bytecodes::Code bc); | |
| 205 bool should_exclude(); | |
| 206 bool should_inline(); | |
| 207 bool should_not_inline(); | |
| 208 bool should_print_assembly(); | |
| 209 bool break_at_execute(); | |
| 210 bool has_option(const char *option); | |
| 211 bool can_be_compiled(); | |
| 212 bool can_be_osr_compiled(int entry_bci); | |
| 213 void set_not_compilable(); | |
| 214 bool has_compiled_code(); | |
| 1783 | 215 int instructions_size(int comp_level = CompLevel_any); |
| 0 | 216 void log_nmethod_identity(xmlStream* log); |
| 217 bool is_not_reached(int bci); | |
| 218 bool was_executed_more_than(int times); | |
| 219 bool has_unloaded_classes_in_signature(); | |
| 220 bool is_klass_loaded(int refinfo_index, bool must_be_resolved) const; | |
| 221 bool check_call(int refinfo_index, bool is_static) const; | |
| 222 void build_method_data(); // make sure it exists in the VM also | |
| 223 int scale_count(int count, float prof_factor = 1.); // make MDO count commensurate with IIC | |
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224 |
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225 // JSR 292 support |
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226 bool is_method_handle_invoke() const; |
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227 bool is_method_handle_adapter() const; |
| 710 | 228 ciInstance* method_handle_type(); |
| 0 | 229 |
| 230 // What kind of ciObject is this? | |
| 231 bool is_method() { return true; } | |
| 232 | |
| 233 // Java access flags | |
| 234 bool is_public () const { return flags().is_public(); } | |
| 235 bool is_private () const { return flags().is_private(); } | |
| 236 bool is_protected () const { return flags().is_protected(); } | |
| 237 bool is_static () const { return flags().is_static(); } | |
| 238 bool is_final () const { return flags().is_final(); } | |
| 239 bool is_synchronized() const { return flags().is_synchronized(); } | |
| 240 bool is_native () const { return flags().is_native(); } | |
| 241 bool is_interface () const { return flags().is_interface(); } | |
| 242 bool is_abstract () const { return flags().is_abstract(); } | |
| 243 bool is_strict () const { return flags().is_strict(); } | |
| 244 | |
| 245 // Other flags | |
| 246 bool is_empty_method() const; | |
| 247 bool is_vanilla_constructor() const; | |
| 248 bool is_final_method() const { return is_final() || holder()->is_final(); } | |
| 249 bool has_loops () const; | |
| 250 bool has_jsrs () const; | |
| 251 bool is_accessor () const; | |
| 252 bool is_initializer () const; | |
| 253 bool can_be_statically_bound() const { return _can_be_statically_bound; } | |
| 254 | |
| 255 // Print the bytecodes of this method. | |
| 256 void print_codes_on(outputStream* st); | |
| 257 void print_codes() { | |
| 258 print_codes_on(tty); | |
| 259 } | |
| 260 void print_codes_on(int from, int to, outputStream* st); | |
| 261 | |
| 262 // Print the name of this method in various incarnations. | |
| 263 void print_name(outputStream* st = tty); | |
| 264 void print_short_name(outputStream* st = tty); | |
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265 |
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266 methodOop get_method_handle_target() { |
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267 klassOop receiver_limit_oop = NULL; |
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268 int flags = 0; |
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269 return MethodHandles::decode_method(get_oop(), receiver_limit_oop, flags); |
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270 } |
| 0 | 271 }; |