Mercurial > hg > graal-compiler
annotate src/share/vm/oops/methodData.cpp @ 17810:62c54fcc0a35
Merge
| author | kvn |
|---|---|
| date | Tue, 25 Mar 2014 17:07:36 -0700 |
| parents | da862781b584 606acabe7b5c |
| children | 78bbf4d43a14 |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 7956 | 2 * Copyright (c) 2000, 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" | |
| 17780 | 27 #include "compiler/compilerOracle.hpp" |
| 1972 | 28 #include "interpreter/bytecode.hpp" |
| 29 #include "interpreter/bytecodeStream.hpp" | |
| 30 #include "interpreter/linkResolver.hpp" | |
| 7956 | 31 #include "memory/heapInspection.hpp" |
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32 #include "oops/methodData.hpp" |
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33 #include "prims/jvmtiRedefineClasses.hpp" |
| 1972 | 34 #include "runtime/compilationPolicy.hpp" |
| 35 #include "runtime/deoptimization.hpp" | |
| 36 #include "runtime/handles.inline.hpp" | |
| 0 | 37 |
| 38 // ================================================================== | |
| 39 // DataLayout | |
| 40 // | |
| 41 // Overlay for generic profiling data. | |
| 42 | |
| 43 // Some types of data layouts need a length field. | |
| 44 bool DataLayout::needs_array_len(u1 tag) { | |
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45 return (tag == multi_branch_data_tag) || (tag == arg_info_data_tag) || (tag == parameters_type_data_tag); |
| 0 | 46 } |
| 47 | |
| 48 // Perform generic initialization of the data. More specific | |
| 49 // initialization occurs in overrides of ProfileData::post_initialize. | |
| 50 void DataLayout::initialize(u1 tag, u2 bci, int cell_count) { | |
| 51 _header._bits = (intptr_t)0; | |
| 52 _header._struct._tag = tag; | |
| 53 _header._struct._bci = bci; | |
| 54 for (int i = 0; i < cell_count; i++) { | |
| 55 set_cell_at(i, (intptr_t)0); | |
| 56 } | |
| 57 if (needs_array_len(tag)) { | |
| 58 set_cell_at(ArrayData::array_len_off_set, cell_count - 1); // -1 for header. | |
| 59 } | |
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60 if (tag == call_type_data_tag) { |
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61 CallTypeData::initialize(this, cell_count); |
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62 } else if (tag == virtual_call_type_data_tag) { |
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63 VirtualCallTypeData::initialize(this, cell_count); |
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64 } |
| 0 | 65 } |
| 66 | |
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67 void DataLayout::clean_weak_klass_links(BoolObjectClosure* cl) { |
| 941 | 68 ResourceMark m; |
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69 data_in()->clean_weak_klass_links(cl); |
| 941 | 70 } |
| 71 | |
| 72 | |
| 0 | 73 // ================================================================== |
| 74 // ProfileData | |
| 75 // | |
| 76 // A ProfileData object is created to refer to a section of profiling | |
| 77 // data in a structured way. | |
| 78 | |
| 79 // Constructor for invalid ProfileData. | |
| 80 ProfileData::ProfileData() { | |
| 81 _data = NULL; | |
| 82 } | |
| 83 | |
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84 char* ProfileData::print_data_on_helper(const MethodData* md) const { |
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85 DataLayout* dp = md->extra_data_base(); |
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86 DataLayout* end = md->extra_data_limit(); |
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87 stringStream ss; |
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88 for (;; dp = MethodData::next_extra(dp)) { |
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89 assert(dp < end, "moved past end of extra data"); |
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90 switch(dp->tag()) { |
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91 case DataLayout::speculative_trap_data_tag: |
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92 if (dp->bci() == bci()) { |
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93 SpeculativeTrapData* data = new SpeculativeTrapData(dp); |
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94 int trap = data->trap_state(); |
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95 char buf[100]; |
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96 ss.print("trap/"); |
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97 data->method()->print_short_name(&ss); |
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98 ss.print("(%s) ", Deoptimization::format_trap_state(buf, sizeof(buf), trap)); |
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99 } |
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100 break; |
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101 case DataLayout::bit_data_tag: |
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102 break; |
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103 case DataLayout::no_tag: |
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104 case DataLayout::arg_info_data_tag: |
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105 return ss.as_string(); |
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106 break; |
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107 default: |
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108 fatal(err_msg("unexpected tag %d", dp->tag())); |
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109 } |
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110 } |
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111 return NULL; |
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112 } |
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113 |
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114 void ProfileData::print_data_on(outputStream* st, const MethodData* md) const { |
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115 print_data_on(st, print_data_on_helper(md)); |
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116 } |
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117 |
| 0 | 118 #ifndef PRODUCT |
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119 void ProfileData::print_shared(outputStream* st, const char* name, const char* extra) const { |
| 0 | 120 st->print("bci: %d", bci()); |
| 121 st->fill_to(tab_width_one); | |
| 122 st->print("%s", name); | |
| 123 tab(st); | |
| 124 int trap = trap_state(); | |
| 125 if (trap != 0) { | |
| 126 char buf[100]; | |
| 127 st->print("trap(%s) ", Deoptimization::format_trap_state(buf, sizeof(buf), trap)); | |
| 128 } | |
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129 if (extra != NULL) { |
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130 st->print(extra); |
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131 } |
| 0 | 132 int flags = data()->flags(); |
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133 if (flags != 0) { |
| 0 | 134 st->print("flags(%d) ", flags); |
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135 } |
| 0 | 136 } |
| 137 | |
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138 void ProfileData::tab(outputStream* st, bool first) const { |
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139 st->fill_to(first ? tab_width_one : tab_width_two); |
| 0 | 140 } |
| 141 #endif // !PRODUCT | |
| 142 | |
| 143 // ================================================================== | |
| 144 // BitData | |
| 145 // | |
| 146 // A BitData corresponds to a one-bit flag. This is used to indicate | |
| 147 // whether a checkcast bytecode has seen a null value. | |
| 148 | |
| 149 | |
| 150 #ifndef PRODUCT | |
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151 void BitData::print_data_on(outputStream* st, const char* extra) const { |
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152 print_shared(st, "BitData", extra); |
| 0 | 153 } |
| 154 #endif // !PRODUCT | |
| 155 | |
| 156 // ================================================================== | |
| 157 // CounterData | |
| 158 // | |
| 159 // A CounterData corresponds to a simple counter. | |
| 160 | |
| 161 #ifndef PRODUCT | |
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162 void CounterData::print_data_on(outputStream* st, const char* extra) const { |
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163 print_shared(st, "CounterData", extra); |
| 0 | 164 st->print_cr("count(%u)", count()); |
| 165 } | |
| 166 #endif // !PRODUCT | |
| 167 | |
| 168 // ================================================================== | |
| 169 // JumpData | |
| 170 // | |
| 171 // A JumpData is used to access profiling information for a direct | |
| 172 // branch. It is a counter, used for counting the number of branches, | |
| 173 // plus a data displacement, used for realigning the data pointer to | |
| 174 // the corresponding target bci. | |
| 175 | |
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176 void JumpData::post_initialize(BytecodeStream* stream, MethodData* mdo) { |
| 0 | 177 assert(stream->bci() == bci(), "wrong pos"); |
| 178 int target; | |
| 179 Bytecodes::Code c = stream->code(); | |
| 180 if (c == Bytecodes::_goto_w || c == Bytecodes::_jsr_w) { | |
| 181 target = stream->dest_w(); | |
| 182 } else { | |
| 183 target = stream->dest(); | |
| 184 } | |
| 185 int my_di = mdo->dp_to_di(dp()); | |
| 186 int target_di = mdo->bci_to_di(target); | |
| 187 int offset = target_di - my_di; | |
| 188 set_displacement(offset); | |
| 189 } | |
| 190 | |
| 191 #ifndef PRODUCT | |
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192 void JumpData::print_data_on(outputStream* st, const char* extra) const { |
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193 print_shared(st, "JumpData", extra); |
| 0 | 194 st->print_cr("taken(%u) displacement(%d)", taken(), displacement()); |
| 195 } | |
| 196 #endif // !PRODUCT | |
| 197 | |
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198 int TypeStackSlotEntries::compute_cell_count(Symbol* signature, bool include_receiver, int max) { |
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199 // Parameter profiling include the receiver |
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200 int args_count = include_receiver ? 1 : 0; |
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201 ResourceMark rm; |
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202 SignatureStream ss(signature); |
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203 args_count += ss.reference_parameter_count(); |
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204 args_count = MIN2(args_count, max); |
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205 return args_count * per_arg_cell_count; |
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206 } |
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207 |
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208 int TypeEntriesAtCall::compute_cell_count(BytecodeStream* stream) { |
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209 assert(Bytecodes::is_invoke(stream->code()), "should be invoke"); |
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210 assert(TypeStackSlotEntries::per_arg_count() > ReturnTypeEntry::static_cell_count(), "code to test for arguments/results broken"); |
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211 Bytecode_invoke inv(stream->method(), stream->bci()); |
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212 int args_cell = 0; |
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213 if (arguments_profiling_enabled()) { |
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214 args_cell = TypeStackSlotEntries::compute_cell_count(inv.signature(), false, TypeProfileArgsLimit); |
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215 } |
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216 int ret_cell = 0; |
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217 if (return_profiling_enabled() && (inv.result_type() == T_OBJECT || inv.result_type() == T_ARRAY)) { |
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218 ret_cell = ReturnTypeEntry::static_cell_count(); |
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219 } |
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220 int header_cell = 0; |
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221 if (args_cell + ret_cell > 0) { |
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222 header_cell = header_cell_count(); |
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223 } |
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224 |
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225 return header_cell + args_cell + ret_cell; |
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226 } |
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227 |
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228 class ArgumentOffsetComputer : public SignatureInfo { |
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229 private: |
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230 int _max; |
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231 GrowableArray<int> _offsets; |
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232 |
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233 void set(int size, BasicType type) { _size += size; } |
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234 void do_object(int begin, int end) { |
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235 if (_offsets.length() < _max) { |
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236 _offsets.push(_size); |
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237 } |
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238 SignatureInfo::do_object(begin, end); |
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239 } |
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240 void do_array (int begin, int end) { |
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241 if (_offsets.length() < _max) { |
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242 _offsets.push(_size); |
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243 } |
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244 SignatureInfo::do_array(begin, end); |
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245 } |
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246 |
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247 public: |
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248 ArgumentOffsetComputer(Symbol* signature, int max) |
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249 : SignatureInfo(signature), _max(max), _offsets(Thread::current(), max) { |
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250 } |
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251 |
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252 int total() { lazy_iterate_parameters(); return _size; } |
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253 |
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254 int off_at(int i) const { return _offsets.at(i); } |
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255 }; |
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256 |
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257 void TypeStackSlotEntries::post_initialize(Symbol* signature, bool has_receiver, bool include_receiver) { |
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258 ResourceMark rm; |
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259 int start = 0; |
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260 // Parameter profiling include the receiver |
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261 if (include_receiver && has_receiver) { |
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262 set_stack_slot(0, 0); |
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263 set_type(0, type_none()); |
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264 start += 1; |
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265 } |
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266 ArgumentOffsetComputer aos(signature, _number_of_entries-start); |
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267 aos.total(); |
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268 for (int i = start; i < _number_of_entries; i++) { |
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269 set_stack_slot(i, aos.off_at(i-start) + (has_receiver ? 1 : 0)); |
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270 set_type(i, type_none()); |
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271 } |
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272 } |
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273 |
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274 void CallTypeData::post_initialize(BytecodeStream* stream, MethodData* mdo) { |
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275 assert(Bytecodes::is_invoke(stream->code()), "should be invoke"); |
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276 Bytecode_invoke inv(stream->method(), stream->bci()); |
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277 |
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278 SignatureStream ss(inv.signature()); |
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279 if (has_arguments()) { |
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280 #ifdef ASSERT |
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281 ResourceMark rm; |
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282 int count = MIN2(ss.reference_parameter_count(), (int)TypeProfileArgsLimit); |
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283 assert(count > 0, "room for args type but none found?"); |
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284 check_number_of_arguments(count); |
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285 #endif |
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286 _args.post_initialize(inv.signature(), inv.has_receiver(), false); |
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287 } |
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288 |
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289 if (has_return()) { |
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290 assert(inv.result_type() == T_OBJECT || inv.result_type() == T_ARRAY, "room for a ret type but doesn't return obj?"); |
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291 _ret.post_initialize(); |
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292 } |
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293 } |
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294 |
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295 void VirtualCallTypeData::post_initialize(BytecodeStream* stream, MethodData* mdo) { |
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296 assert(Bytecodes::is_invoke(stream->code()), "should be invoke"); |
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297 Bytecode_invoke inv(stream->method(), stream->bci()); |
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298 |
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299 if (has_arguments()) { |
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300 #ifdef ASSERT |
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301 ResourceMark rm; |
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302 SignatureStream ss(inv.signature()); |
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303 int count = MIN2(ss.reference_parameter_count(), (int)TypeProfileArgsLimit); |
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304 assert(count > 0, "room for args type but none found?"); |
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305 check_number_of_arguments(count); |
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306 #endif |
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307 _args.post_initialize(inv.signature(), inv.has_receiver(), false); |
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308 } |
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309 |
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310 if (has_return()) { |
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311 assert(inv.result_type() == T_OBJECT || inv.result_type() == T_ARRAY, "room for a ret type but doesn't return obj?"); |
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312 _ret.post_initialize(); |
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313 } |
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314 } |
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315 |
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316 bool TypeEntries::is_loader_alive(BoolObjectClosure* is_alive_cl, intptr_t p) { |
| 13080 | 317 Klass* k = (Klass*)klass_part(p); |
| 318 return k != NULL && k->is_loader_alive(is_alive_cl); | |
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319 } |
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320 |
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321 void TypeStackSlotEntries::clean_weak_klass_links(BoolObjectClosure* is_alive_cl) { |
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322 for (int i = 0; i < _number_of_entries; i++) { |
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323 intptr_t p = type(i); |
| 13080 | 324 if (!is_loader_alive(is_alive_cl, p)) { |
| 325 set_type(i, with_status((Klass*)NULL, p)); | |
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326 } |
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327 } |
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328 } |
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329 |
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330 void ReturnTypeEntry::clean_weak_klass_links(BoolObjectClosure* is_alive_cl) { |
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331 intptr_t p = type(); |
| 13080 | 332 if (!is_loader_alive(is_alive_cl, p)) { |
| 333 set_type(with_status((Klass*)NULL, p)); | |
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334 } |
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335 } |
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336 |
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337 bool TypeEntriesAtCall::return_profiling_enabled() { |
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338 return MethodData::profile_return(); |
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339 } |
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340 |
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341 bool TypeEntriesAtCall::arguments_profiling_enabled() { |
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342 return MethodData::profile_arguments(); |
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343 } |
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344 |
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345 #ifndef PRODUCT |
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346 void TypeEntries::print_klass(outputStream* st, intptr_t k) { |
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347 if (is_type_none(k)) { |
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348 st->print("none"); |
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349 } else if (is_type_unknown(k)) { |
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350 st->print("unknown"); |
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351 } else { |
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352 valid_klass(k)->print_value_on(st); |
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353 } |
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354 if (was_null_seen(k)) { |
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355 st->print(" (null seen)"); |
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356 } |
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357 } |
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358 |
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359 void TypeStackSlotEntries::print_data_on(outputStream* st) const { |
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360 for (int i = 0; i < _number_of_entries; i++) { |
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361 _pd->tab(st); |
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362 st->print("%d: stack(%u) ", i, stack_slot(i)); |
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363 print_klass(st, type(i)); |
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364 st->cr(); |
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365 } |
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366 } |
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367 |
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368 void ReturnTypeEntry::print_data_on(outputStream* st) const { |
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369 _pd->tab(st); |
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370 print_klass(st, type()); |
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371 st->cr(); |
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372 } |
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373 |
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374 void CallTypeData::print_data_on(outputStream* st, const char* extra) const { |
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375 CounterData::print_data_on(st, extra); |
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376 if (has_arguments()) { |
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377 tab(st, true); |
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378 st->print("argument types"); |
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379 _args.print_data_on(st); |
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380 } |
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381 if (has_return()) { |
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382 tab(st, true); |
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383 st->print("return type"); |
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384 _ret.print_data_on(st); |
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385 } |
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386 } |
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387 |
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388 void VirtualCallTypeData::print_data_on(outputStream* st, const char* extra) const { |
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389 VirtualCallData::print_data_on(st, extra); |
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390 if (has_arguments()) { |
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391 tab(st, true); |
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392 st->print("argument types"); |
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393 _args.print_data_on(st); |
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394 } |
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395 if (has_return()) { |
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396 tab(st, true); |
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397 st->print("return type"); |
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398 _ret.print_data_on(st); |
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399 } |
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400 } |
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401 #endif |
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402 |
| 0 | 403 // ================================================================== |
| 404 // ReceiverTypeData | |
| 405 // | |
| 406 // A ReceiverTypeData is used to access profiling information about a | |
| 407 // dynamic type check. It consists of a counter which counts the total times | |
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408 // that the check is reached, and a series of (Klass*, count) pairs |
| 0 | 409 // which are used to store a type profile for the receiver of the check. |
| 410 | |
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411 void ReceiverTypeData::clean_weak_klass_links(BoolObjectClosure* is_alive_cl) { |
| 941 | 412 for (uint row = 0; row < row_limit(); row++) { |
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413 Klass* p = receiver(row); |
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414 if (p != NULL && !p->is_loader_alive(is_alive_cl)) { |
| 941 | 415 clear_row(row); |
| 416 } | |
| 417 } | |
| 418 } | |
| 419 | |
| 0 | 420 #ifndef PRODUCT |
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421 void ReceiverTypeData::print_receiver_data_on(outputStream* st) const { |
| 0 | 422 uint row; |
| 423 int entries = 0; | |
| 424 for (row = 0; row < row_limit(); row++) { | |
| 425 if (receiver(row) != NULL) entries++; | |
| 426 } | |
| 427 st->print_cr("count(%u) entries(%u)", count(), entries); | |
| 1783 | 428 int total = count(); |
| 429 for (row = 0; row < row_limit(); row++) { | |
| 430 if (receiver(row) != NULL) { | |
| 431 total += receiver_count(row); | |
| 432 } | |
| 433 } | |
| 0 | 434 for (row = 0; row < row_limit(); row++) { |
| 435 if (receiver(row) != NULL) { | |
| 436 tab(st); | |
| 437 receiver(row)->print_value_on(st); | |
| 1783 | 438 st->print_cr("(%u %4.2f)", receiver_count(row), (float) receiver_count(row) / (float) total); |
| 0 | 439 } |
| 440 } | |
| 441 } | |
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442 void ReceiverTypeData::print_data_on(outputStream* st, const char* extra) const { |
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443 print_shared(st, "ReceiverTypeData", extra); |
| 0 | 444 print_receiver_data_on(st); |
| 445 } | |
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446 void VirtualCallData::print_data_on(outputStream* st, const char* extra) const { |
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447 print_shared(st, "VirtualCallData", extra); |
| 0 | 448 print_receiver_data_on(st); |
| 449 } | |
| 450 #endif // !PRODUCT | |
| 451 | |
| 452 // ================================================================== | |
| 453 // RetData | |
| 454 // | |
| 455 // A RetData is used to access profiling information for a ret bytecode. | |
| 456 // It is composed of a count of the number of times that the ret has | |
| 457 // been executed, followed by a series of triples of the form | |
| 458 // (bci, count, di) which count the number of times that some bci was the | |
| 459 // target of the ret and cache a corresponding displacement. | |
| 460 | |
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461 void RetData::post_initialize(BytecodeStream* stream, MethodData* mdo) { |
| 0 | 462 for (uint row = 0; row < row_limit(); row++) { |
| 463 set_bci_displacement(row, -1); | |
| 464 set_bci(row, no_bci); | |
| 465 } | |
| 466 // release so other threads see a consistent state. bci is used as | |
| 467 // a valid flag for bci_displacement. | |
| 468 OrderAccess::release(); | |
| 469 } | |
| 470 | |
| 471 // This routine needs to atomically update the RetData structure, so the | |
| 472 // caller needs to hold the RetData_lock before it gets here. Since taking | |
| 473 // the lock can block (and allow GC) and since RetData is a ProfileData is a | |
| 474 // wrapper around a derived oop, taking the lock in _this_ method will | |
| 475 // basically cause the 'this' pointer's _data field to contain junk after the | |
| 476 // lock. We require the caller to take the lock before making the ProfileData | |
| 477 // structure. Currently the only caller is InterpreterRuntime::update_mdp_for_ret | |
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478 address RetData::fixup_ret(int return_bci, MethodData* h_mdo) { |
| 0 | 479 // First find the mdp which corresponds to the return bci. |
| 480 address mdp = h_mdo->bci_to_dp(return_bci); | |
| 481 | |
| 482 // Now check to see if any of the cache slots are open. | |
| 483 for (uint row = 0; row < row_limit(); row++) { | |
| 484 if (bci(row) == no_bci) { | |
| 485 set_bci_displacement(row, mdp - dp()); | |
| 486 set_bci_count(row, DataLayout::counter_increment); | |
| 487 // Barrier to ensure displacement is written before the bci; allows | |
| 488 // the interpreter to read displacement without fear of race condition. | |
| 489 release_set_bci(row, return_bci); | |
| 490 break; | |
| 491 } | |
| 492 } | |
| 493 return mdp; | |
| 494 } | |
| 495 | |
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496 #ifdef CC_INTERP |
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497 DataLayout* RetData::advance(MethodData *md, int bci) { |
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498 return (DataLayout*) md->bci_to_dp(bci); |
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499 } |
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500 #endif // CC_INTERP |
| 0 | 501 |
| 502 #ifndef PRODUCT | |
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503 void RetData::print_data_on(outputStream* st, const char* extra) const { |
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504 print_shared(st, "RetData", extra); |
| 0 | 505 uint row; |
| 506 int entries = 0; | |
| 507 for (row = 0; row < row_limit(); row++) { | |
| 508 if (bci(row) != no_bci) entries++; | |
| 509 } | |
| 510 st->print_cr("count(%u) entries(%u)", count(), entries); | |
| 511 for (row = 0; row < row_limit(); row++) { | |
| 512 if (bci(row) != no_bci) { | |
| 513 tab(st); | |
| 514 st->print_cr("bci(%d: count(%u) displacement(%d))", | |
| 515 bci(row), bci_count(row), bci_displacement(row)); | |
| 516 } | |
| 517 } | |
| 518 } | |
| 519 #endif // !PRODUCT | |
| 520 | |
| 521 // ================================================================== | |
| 522 // BranchData | |
| 523 // | |
| 524 // A BranchData is used to access profiling data for a two-way branch. | |
| 525 // It consists of taken and not_taken counts as well as a data displacement | |
| 526 // for the taken case. | |
| 527 | |
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528 void BranchData::post_initialize(BytecodeStream* stream, MethodData* mdo) { |
| 0 | 529 assert(stream->bci() == bci(), "wrong pos"); |
| 530 int target = stream->dest(); | |
| 531 int my_di = mdo->dp_to_di(dp()); | |
| 532 int target_di = mdo->bci_to_di(target); | |
| 533 int offset = target_di - my_di; | |
| 534 set_displacement(offset); | |
| 535 } | |
| 536 | |
| 537 #ifndef PRODUCT | |
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538 void BranchData::print_data_on(outputStream* st, const char* extra) const { |
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539 print_shared(st, "BranchData", extra); |
| 0 | 540 st->print_cr("taken(%u) displacement(%d)", |
| 541 taken(), displacement()); | |
| 542 tab(st); | |
| 543 st->print_cr("not taken(%u)", not_taken()); | |
| 544 } | |
| 545 #endif | |
| 546 | |
| 547 // ================================================================== | |
| 548 // MultiBranchData | |
| 549 // | |
| 550 // A MultiBranchData is used to access profiling information for | |
| 551 // a multi-way branch (*switch bytecodes). It consists of a series | |
| 552 // of (count, displacement) pairs, which count the number of times each | |
| 553 // case was taken and specify the data displacment for each branch target. | |
| 554 | |
| 555 int MultiBranchData::compute_cell_count(BytecodeStream* stream) { | |
| 556 int cell_count = 0; | |
| 557 if (stream->code() == Bytecodes::_tableswitch) { | |
| 2142 | 558 Bytecode_tableswitch sw(stream->method()(), stream->bcp()); |
| 559 cell_count = 1 + per_case_cell_count * (1 + sw.length()); // 1 for default | |
| 0 | 560 } else { |
| 2142 | 561 Bytecode_lookupswitch sw(stream->method()(), stream->bcp()); |
| 562 cell_count = 1 + per_case_cell_count * (sw.number_of_pairs() + 1); // 1 for default | |
| 0 | 563 } |
| 564 return cell_count; | |
| 565 } | |
| 566 | |
| 567 void MultiBranchData::post_initialize(BytecodeStream* stream, | |
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568 MethodData* mdo) { |
| 0 | 569 assert(stream->bci() == bci(), "wrong pos"); |
| 570 int target; | |
| 571 int my_di; | |
| 572 int target_di; | |
| 573 int offset; | |
| 574 if (stream->code() == Bytecodes::_tableswitch) { | |
| 2142 | 575 Bytecode_tableswitch sw(stream->method()(), stream->bcp()); |
| 576 int len = sw.length(); | |
| 0 | 577 assert(array_len() == per_case_cell_count * (len + 1), "wrong len"); |
| 578 for (int count = 0; count < len; count++) { | |
| 2142 | 579 target = sw.dest_offset_at(count) + bci(); |
| 0 | 580 my_di = mdo->dp_to_di(dp()); |
| 581 target_di = mdo->bci_to_di(target); | |
| 582 offset = target_di - my_di; | |
| 583 set_displacement_at(count, offset); | |
| 584 } | |
| 2142 | 585 target = sw.default_offset() + bci(); |
| 0 | 586 my_di = mdo->dp_to_di(dp()); |
| 587 target_di = mdo->bci_to_di(target); | |
| 588 offset = target_di - my_di; | |
| 589 set_default_displacement(offset); | |
| 590 | |
| 591 } else { | |
| 2142 | 592 Bytecode_lookupswitch sw(stream->method()(), stream->bcp()); |
| 593 int npairs = sw.number_of_pairs(); | |
| 0 | 594 assert(array_len() == per_case_cell_count * (npairs + 1), "wrong len"); |
| 595 for (int count = 0; count < npairs; count++) { | |
| 2142 | 596 LookupswitchPair pair = sw.pair_at(count); |
| 597 target = pair.offset() + bci(); | |
| 0 | 598 my_di = mdo->dp_to_di(dp()); |
| 599 target_di = mdo->bci_to_di(target); | |
| 600 offset = target_di - my_di; | |
| 601 set_displacement_at(count, offset); | |
| 602 } | |
| 2142 | 603 target = sw.default_offset() + bci(); |
| 0 | 604 my_di = mdo->dp_to_di(dp()); |
| 605 target_di = mdo->bci_to_di(target); | |
| 606 offset = target_di - my_di; | |
| 607 set_default_displacement(offset); | |
| 608 } | |
| 609 } | |
| 610 | |
| 611 #ifndef PRODUCT | |
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612 void MultiBranchData::print_data_on(outputStream* st, const char* extra) const { |
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613 print_shared(st, "MultiBranchData", extra); |
| 0 | 614 st->print_cr("default_count(%u) displacement(%d)", |
| 615 default_count(), default_displacement()); | |
| 616 int cases = number_of_cases(); | |
| 617 for (int i = 0; i < cases; i++) { | |
| 618 tab(st); | |
| 619 st->print_cr("count(%u) displacement(%d)", | |
| 620 count_at(i), displacement_at(i)); | |
| 621 } | |
| 622 } | |
| 623 #endif | |
| 624 | |
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625 #ifndef PRODUCT |
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626 void ArgInfoData::print_data_on(outputStream* st, const char* extra) const { |
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627 print_shared(st, "ArgInfoData", extra); |
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628 int nargs = number_of_args(); |
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629 for (int i = 0; i < nargs; i++) { |
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630 st->print(" 0x%x", arg_modified(i)); |
|
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|
631 } |
|
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632 st->cr(); |
|
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|
633 } |
|
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|
634 |
|
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|
635 #endif |
|
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636 |
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637 int ParametersTypeData::compute_cell_count(Method* m) { |
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638 if (!MethodData::profile_parameters_for_method(m)) { |
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639 return 0; |
|
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|
640 } |
|
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641 int max = TypeProfileParmsLimit == -1 ? INT_MAX : TypeProfileParmsLimit; |
|
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642 int obj_args = TypeStackSlotEntries::compute_cell_count(m->signature(), !m->is_static(), max); |
|
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643 if (obj_args > 0) { |
|
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644 return obj_args + 1; // 1 cell for array len |
|
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|
645 } |
|
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646 return 0; |
|
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|
647 } |
|
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648 |
|
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649 void ParametersTypeData::post_initialize(BytecodeStream* stream, MethodData* mdo) { |
|
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650 _parameters.post_initialize(mdo->method()->signature(), !mdo->method()->is_static(), true); |
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651 } |
|
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652 |
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|
653 bool ParametersTypeData::profiling_enabled() { |
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|
654 return MethodData::profile_parameters(); |
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|
655 } |
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656 |
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|
657 #ifndef PRODUCT |
|
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658 void ParametersTypeData::print_data_on(outputStream* st, const char* extra) const { |
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659 st->print("parameter types", extra); |
|
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660 _parameters.print_data_on(st); |
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661 } |
|
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662 |
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663 void SpeculativeTrapData::print_data_on(outputStream* st, const char* extra) const { |
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664 print_shared(st, "SpeculativeTrapData", extra); |
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665 tab(st); |
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666 method()->print_short_name(st); |
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|
667 st->cr(); |
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|
668 } |
|
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669 #endif |
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670 |
| 0 | 671 // ================================================================== |
|
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672 // MethodData* |
| 0 | 673 // |
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674 // A MethodData* holds information which has been collected about |
| 0 | 675 // a method. |
| 676 | |
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677 MethodData* MethodData::allocate(ClassLoaderData* loader_data, methodHandle method, TRAPS) { |
|
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678 int size = MethodData::compute_allocation_size_in_words(method); |
|
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679 |
|
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680 return new (loader_data, size, false, MetaspaceObj::MethodDataType, THREAD) |
|
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681 MethodData(method(), size, CHECK_NULL); |
|
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682 } |
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|
683 |
|
da91efe96a93
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|
684 int MethodData::bytecode_cell_count(Bytecodes::Code code) { |
| 8860 | 685 #if defined(COMPILER1) && !defined(COMPILER2) |
| 686 return no_profile_data; | |
| 687 #else | |
| 0 | 688 switch (code) { |
| 689 case Bytecodes::_checkcast: | |
| 690 case Bytecodes::_instanceof: | |
| 691 case Bytecodes::_aastore: | |
| 692 if (TypeProfileCasts) { | |
| 693 return ReceiverTypeData::static_cell_count(); | |
| 694 } else { | |
| 695 return BitData::static_cell_count(); | |
| 696 } | |
| 697 case Bytecodes::_invokespecial: | |
| 698 case Bytecodes::_invokestatic: | |
|
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|
699 if (MethodData::profile_arguments() || MethodData::profile_return()) { |
|
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|
700 return variable_cell_count; |
|
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|
701 } else { |
|
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|
702 return CounterData::static_cell_count(); |
|
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|
703 } |
| 0 | 704 case Bytecodes::_goto: |
| 705 case Bytecodes::_goto_w: | |
| 706 case Bytecodes::_jsr: | |
| 707 case Bytecodes::_jsr_w: | |
| 708 return JumpData::static_cell_count(); | |
| 709 case Bytecodes::_invokevirtual: | |
| 710 case Bytecodes::_invokeinterface: | |
|
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|
711 if (MethodData::profile_arguments() || MethodData::profile_return()) { |
|
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|
712 return variable_cell_count; |
|
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|
713 } else { |
|
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|
714 return VirtualCallData::static_cell_count(); |
|
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diff
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|
715 } |
|
726
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
196
diff
changeset
|
716 case Bytecodes::_invokedynamic: |
|
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|
717 if (MethodData::profile_arguments() || MethodData::profile_return()) { |
|
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|
718 return variable_cell_count; |
|
d13d7aba8c12
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diff
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|
719 } else { |
|
d13d7aba8c12
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|
720 return CounterData::static_cell_count(); |
|
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diff
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|
721 } |
| 0 | 722 case Bytecodes::_ret: |
| 723 return RetData::static_cell_count(); | |
| 724 case Bytecodes::_ifeq: | |
| 725 case Bytecodes::_ifne: | |
| 726 case Bytecodes::_iflt: | |
| 727 case Bytecodes::_ifge: | |
| 728 case Bytecodes::_ifgt: | |
| 729 case Bytecodes::_ifle: | |
| 730 case Bytecodes::_if_icmpeq: | |
| 731 case Bytecodes::_if_icmpne: | |
| 732 case Bytecodes::_if_icmplt: | |
| 733 case Bytecodes::_if_icmpge: | |
| 734 case Bytecodes::_if_icmpgt: | |
| 735 case Bytecodes::_if_icmple: | |
| 736 case Bytecodes::_if_acmpeq: | |
| 737 case Bytecodes::_if_acmpne: | |
| 738 case Bytecodes::_ifnull: | |
| 739 case Bytecodes::_ifnonnull: | |
| 740 return BranchData::static_cell_count(); | |
| 741 case Bytecodes::_lookupswitch: | |
| 742 case Bytecodes::_tableswitch: | |
| 743 return variable_cell_count; | |
| 744 } | |
| 745 return no_profile_data; | |
| 8860 | 746 #endif |
| 0 | 747 } |
| 748 | |
| 749 // Compute the size of the profiling information corresponding to | |
| 750 // the current bytecode. | |
|
6725
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coleenp
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diff
changeset
|
751 int MethodData::compute_data_size(BytecodeStream* stream) { |
| 0 | 752 int cell_count = bytecode_cell_count(stream->code()); |
| 753 if (cell_count == no_profile_data) { | |
| 754 return 0; | |
| 755 } | |
| 756 if (cell_count == variable_cell_count) { | |
|
12875
d13d7aba8c12
8023657: New type profiling points: arguments to call
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|
757 switch (stream->code()) { |
|
d13d7aba8c12
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|
758 case Bytecodes::_lookupswitch: |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
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diff
changeset
|
759 case Bytecodes::_tableswitch: |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
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parents:
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|
760 cell_count = MultiBranchData::compute_cell_count(stream); |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
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diff
changeset
|
761 break; |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
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diff
changeset
|
762 case Bytecodes::_invokespecial: |
|
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8023657: New type profiling points: arguments to call
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diff
changeset
|
763 case Bytecodes::_invokestatic: |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
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diff
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|
764 case Bytecodes::_invokedynamic: |
|
12882
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8026054: New type profiling points: type of return values at calls
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diff
changeset
|
765 assert(MethodData::profile_arguments() || MethodData::profile_return(), "should be collecting args profile"); |
|
ce0cc25bc5e2
8026054: New type profiling points: type of return values at calls
roland
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changeset
|
766 if (profile_arguments_for_invoke(stream->method(), stream->bci()) || |
|
ce0cc25bc5e2
8026054: New type profiling points: type of return values at calls
roland
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changeset
|
767 profile_return_for_invoke(stream->method(), stream->bci())) { |
|
12875
d13d7aba8c12
8023657: New type profiling points: arguments to call
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diff
changeset
|
768 cell_count = CallTypeData::compute_cell_count(stream); |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
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diff
changeset
|
769 } else { |
|
d13d7aba8c12
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parents:
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diff
changeset
|
770 cell_count = CounterData::static_cell_count(); |
|
d13d7aba8c12
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roland
parents:
10376
diff
changeset
|
771 } |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
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parents:
10376
diff
changeset
|
772 break; |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
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parents:
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diff
changeset
|
773 case Bytecodes::_invokevirtual: |
|
d13d7aba8c12
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roland
parents:
10376
diff
changeset
|
774 case Bytecodes::_invokeinterface: { |
|
12882
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8026054: New type profiling points: type of return values at calls
roland
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diff
changeset
|
775 assert(MethodData::profile_arguments() || MethodData::profile_return(), "should be collecting args profile"); |
|
ce0cc25bc5e2
8026054: New type profiling points: type of return values at calls
roland
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12875
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changeset
|
776 if (profile_arguments_for_invoke(stream->method(), stream->bci()) || |
|
ce0cc25bc5e2
8026054: New type profiling points: type of return values at calls
roland
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12875
diff
changeset
|
777 profile_return_for_invoke(stream->method(), stream->bci())) { |
|
12875
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diff
changeset
|
778 cell_count = VirtualCallTypeData::compute_cell_count(stream); |
|
d13d7aba8c12
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roland
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diff
changeset
|
779 } else { |
|
d13d7aba8c12
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roland
parents:
10376
diff
changeset
|
780 cell_count = VirtualCallData::static_cell_count(); |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
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parents:
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diff
changeset
|
781 } |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
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diff
changeset
|
782 break; |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
10376
diff
changeset
|
783 } |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
10376
diff
changeset
|
784 default: |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
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diff
changeset
|
785 fatal("unexpected bytecode for var length profile data"); |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
10376
diff
changeset
|
786 } |
| 0 | 787 } |
| 788 // Note: cell_count might be zero, meaning that there is just | |
| 789 // a DataLayout header, with no extra cells. | |
| 790 assert(cell_count >= 0, "sanity"); | |
| 791 return DataLayout::compute_size_in_bytes(cell_count); | |
| 792 } | |
| 793 | |
|
17728
b8413a9cbb84
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
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13080
diff
changeset
|
794 bool MethodData::is_speculative_trap_bytecode(Bytecodes::Code code) { |
|
b8413a9cbb84
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
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diff
changeset
|
795 // Bytecodes for which we may use speculation |
|
b8413a9cbb84
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
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changeset
|
796 switch (code) { |
|
b8413a9cbb84
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
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changeset
|
797 case Bytecodes::_checkcast: |
|
b8413a9cbb84
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
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diff
changeset
|
798 case Bytecodes::_instanceof: |
|
b8413a9cbb84
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
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diff
changeset
|
799 case Bytecodes::_aastore: |
|
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changeset
|
800 case Bytecodes::_invokevirtual: |
|
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8031752: Failed speculative optimizations should be reattempted when root of compilation is different
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changeset
|
801 case Bytecodes::_invokeinterface: |
|
b8413a9cbb84
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
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|
802 case Bytecodes::_if_acmpeq: |
|
b8413a9cbb84
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
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|
803 case Bytecodes::_if_acmpne: |
|
b8413a9cbb84
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diff
changeset
|
804 case Bytecodes::_invokestatic: |
|
b8413a9cbb84
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roland
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changeset
|
805 #ifdef COMPILER2 |
|
b8413a9cbb84
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
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806 return UseTypeSpeculation; |
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807 #endif |
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808 default: |
|
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809 return false; |
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810 } |
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811 return false; |
|
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812 } |
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813 |
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814 int MethodData::compute_extra_data_count(int data_size, int empty_bc_count, bool needs_speculative_traps) { |
| 0 | 815 if (ProfileTraps) { |
| 816 // Assume that up to 3% of BCIs with no MDP will need to allocate one. | |
| 817 int extra_data_count = (uint)(empty_bc_count * 3) / 128 + 1; | |
| 818 // If the method is large, let the extra BCIs grow numerous (to ~1%). | |
| 819 int one_percent_of_data | |
| 820 = (uint)data_size / (DataLayout::header_size_in_bytes()*128); | |
| 821 if (extra_data_count < one_percent_of_data) | |
| 822 extra_data_count = one_percent_of_data; | |
| 823 if (extra_data_count > empty_bc_count) | |
| 824 extra_data_count = empty_bc_count; // no need for more | |
|
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825 |
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826 // Make sure we have a minimum number of extra data slots to |
|
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827 // allocate SpeculativeTrapData entries. We would want to have one |
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828 // entry per compilation that inlines this method and for which |
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829 // some type speculation assumption fails. So the room we need for |
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830 // the SpeculativeTrapData entries doesn't directly depend on the |
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831 // size of the method. Because it's hard to estimate, we reserve |
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832 // space for an arbitrary number of entries. |
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833 int spec_data_count = (needs_speculative_traps ? SpecTrapLimitExtraEntries : 0) * |
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834 (SpeculativeTrapData::static_cell_count() + DataLayout::header_size_in_cells()); |
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835 |
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836 return MAX2(extra_data_count, spec_data_count); |
| 0 | 837 } else { |
| 838 return 0; | |
| 839 } | |
| 840 } | |
| 841 | |
|
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842 // Compute the size of the MethodData* necessary to store |
| 0 | 843 // profiling information about a given method. Size is in bytes. |
|
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844 int MethodData::compute_allocation_size_in_bytes(methodHandle method) { |
| 0 | 845 int data_size = 0; |
| 846 BytecodeStream stream(method); | |
| 847 Bytecodes::Code c; | |
| 848 int empty_bc_count = 0; // number of bytecodes lacking data | |
|
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849 bool needs_speculative_traps = false; |
| 0 | 850 while ((c = stream.next()) >= 0) { |
| 851 int size_in_bytes = compute_data_size(&stream); | |
| 852 data_size += size_in_bytes; | |
| 853 if (size_in_bytes == 0) empty_bc_count += 1; | |
|
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854 needs_speculative_traps = needs_speculative_traps || is_speculative_trap_bytecode(c); |
| 0 | 855 } |
| 856 int object_size = in_bytes(data_offset()) + data_size; | |
| 857 | |
| 858 // Add some extra DataLayout cells (at least one) to track stray traps. | |
|
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859 int extra_data_count = compute_extra_data_count(data_size, empty_bc_count, needs_speculative_traps); |
| 0 | 860 object_size += extra_data_count * DataLayout::compute_size_in_bytes(0); |
| 861 | |
|
45
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|
862 // Add a cell to record information about modified arguments. |
|
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863 int arg_size = method->size_of_parameters(); |
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864 object_size += DataLayout::compute_size_in_bytes(arg_size+1); |
|
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865 |
|
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866 // Reserve room for an area of the MDO dedicated to profiling of |
|
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867 // parameters |
|
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868 int args_cell = ParametersTypeData::compute_cell_count(method()); |
|
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869 if (args_cell > 0) { |
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870 object_size += DataLayout::compute_size_in_bytes(args_cell); |
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871 } |
| 0 | 872 return object_size; |
| 873 } | |
| 874 | |
|
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875 // Compute the size of the MethodData* necessary to store |
| 0 | 876 // profiling information about a given method. Size is in words |
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877 int MethodData::compute_allocation_size_in_words(methodHandle method) { |
| 0 | 878 int byte_size = compute_allocation_size_in_bytes(method); |
| 879 int word_size = align_size_up(byte_size, BytesPerWord) / BytesPerWord; | |
| 880 return align_object_size(word_size); | |
| 881 } | |
| 882 | |
| 883 // Initialize an individual data segment. Returns the size of | |
| 884 // the segment in bytes. | |
|
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885 int MethodData::initialize_data(BytecodeStream* stream, |
| 0 | 886 int data_index) { |
| 8860 | 887 #if defined(COMPILER1) && !defined(COMPILER2) |
| 888 return 0; | |
| 889 #else | |
| 0 | 890 int cell_count = -1; |
| 891 int tag = DataLayout::no_tag; | |
| 892 DataLayout* data_layout = data_layout_at(data_index); | |
| 893 Bytecodes::Code c = stream->code(); | |
| 894 switch (c) { | |
| 895 case Bytecodes::_checkcast: | |
| 896 case Bytecodes::_instanceof: | |
| 897 case Bytecodes::_aastore: | |
| 898 if (TypeProfileCasts) { | |
| 899 cell_count = ReceiverTypeData::static_cell_count(); | |
| 900 tag = DataLayout::receiver_type_data_tag; | |
| 901 } else { | |
| 902 cell_count = BitData::static_cell_count(); | |
| 903 tag = DataLayout::bit_data_tag; | |
| 904 } | |
| 905 break; | |
| 906 case Bytecodes::_invokespecial: | |
|
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907 case Bytecodes::_invokestatic: { |
|
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|
908 int counter_data_cell_count = CounterData::static_cell_count(); |
|
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909 if (profile_arguments_for_invoke(stream->method(), stream->bci()) || |
|
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910 profile_return_for_invoke(stream->method(), stream->bci())) { |
|
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911 cell_count = CallTypeData::compute_cell_count(stream); |
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|
912 } else { |
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913 cell_count = counter_data_cell_count; |
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|
914 } |
|
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915 if (cell_count > counter_data_cell_count) { |
|
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916 tag = DataLayout::call_type_data_tag; |
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|
917 } else { |
|
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|
918 tag = DataLayout::counter_data_tag; |
|
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|
919 } |
| 0 | 920 break; |
|
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|
921 } |
| 0 | 922 case Bytecodes::_goto: |
| 923 case Bytecodes::_goto_w: | |
| 924 case Bytecodes::_jsr: | |
| 925 case Bytecodes::_jsr_w: | |
| 926 cell_count = JumpData::static_cell_count(); | |
| 927 tag = DataLayout::jump_data_tag; | |
| 928 break; | |
| 929 case Bytecodes::_invokevirtual: | |
|
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930 case Bytecodes::_invokeinterface: { |
|
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|
931 int virtual_call_data_cell_count = VirtualCallData::static_cell_count(); |
|
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|
932 if (profile_arguments_for_invoke(stream->method(), stream->bci()) || |
|
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933 profile_return_for_invoke(stream->method(), stream->bci())) { |
|
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|
934 cell_count = VirtualCallTypeData::compute_cell_count(stream); |
|
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|
935 } else { |
|
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|
936 cell_count = virtual_call_data_cell_count; |
|
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|
937 } |
|
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938 if (cell_count > virtual_call_data_cell_count) { |
|
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939 tag = DataLayout::virtual_call_type_data_tag; |
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|
940 } else { |
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|
941 tag = DataLayout::virtual_call_data_tag; |
|
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|
942 } |
| 0 | 943 break; |
|
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|
944 } |
|
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|
945 case Bytecodes::_invokedynamic: { |
|
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|
946 // %%% should make a type profile for any invokedynamic that takes a ref argument |
|
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|
947 int counter_data_cell_count = CounterData::static_cell_count(); |
|
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948 if (profile_arguments_for_invoke(stream->method(), stream->bci()) || |
|
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949 profile_return_for_invoke(stream->method(), stream->bci())) { |
|
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|
950 cell_count = CallTypeData::compute_cell_count(stream); |
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|
951 } else { |
|
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|
952 cell_count = counter_data_cell_count; |
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|
953 } |
|
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|
954 if (cell_count > counter_data_cell_count) { |
|
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|
955 tag = DataLayout::call_type_data_tag; |
|
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|
956 } else { |
|
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|
957 tag = DataLayout::counter_data_tag; |
|
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|
958 } |
|
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|
959 break; |
|
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|
960 } |
| 0 | 961 case Bytecodes::_ret: |
| 962 cell_count = RetData::static_cell_count(); | |
| 963 tag = DataLayout::ret_data_tag; | |
| 964 break; | |
| 965 case Bytecodes::_ifeq: | |
| 966 case Bytecodes::_ifne: | |
| 967 case Bytecodes::_iflt: | |
| 968 case Bytecodes::_ifge: | |
| 969 case Bytecodes::_ifgt: | |
| 970 case Bytecodes::_ifle: | |
| 971 case Bytecodes::_if_icmpeq: | |
| 972 case Bytecodes::_if_icmpne: | |
| 973 case Bytecodes::_if_icmplt: | |
| 974 case Bytecodes::_if_icmpge: | |
| 975 case Bytecodes::_if_icmpgt: | |
| 976 case Bytecodes::_if_icmple: | |
| 977 case Bytecodes::_if_acmpeq: | |
| 978 case Bytecodes::_if_acmpne: | |
| 979 case Bytecodes::_ifnull: | |
| 980 case Bytecodes::_ifnonnull: | |
| 981 cell_count = BranchData::static_cell_count(); | |
| 982 tag = DataLayout::branch_data_tag; | |
| 983 break; | |
| 984 case Bytecodes::_lookupswitch: | |
| 985 case Bytecodes::_tableswitch: | |
| 986 cell_count = MultiBranchData::compute_cell_count(stream); | |
| 987 tag = DataLayout::multi_branch_data_tag; | |
| 988 break; | |
| 989 } | |
| 990 assert(tag == DataLayout::multi_branch_data_tag || | |
|
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|
991 ((MethodData::profile_arguments() || MethodData::profile_return()) && |
|
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|
992 (tag == DataLayout::call_type_data_tag || |
|
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993 tag == DataLayout::counter_data_tag || |
|
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994 tag == DataLayout::virtual_call_type_data_tag || |
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|
995 tag == DataLayout::virtual_call_data_tag)) || |
| 0 | 996 cell_count == bytecode_cell_count(c), "cell counts must agree"); |
| 997 if (cell_count >= 0) { | |
| 998 assert(tag != DataLayout::no_tag, "bad tag"); | |
| 999 assert(bytecode_has_profile(c), "agree w/ BHP"); | |
| 1000 data_layout->initialize(tag, stream->bci(), cell_count); | |
| 1001 return DataLayout::compute_size_in_bytes(cell_count); | |
| 1002 } else { | |
| 1003 assert(!bytecode_has_profile(c), "agree w/ !BHP"); | |
| 1004 return 0; | |
| 1005 } | |
| 8860 | 1006 #endif |
| 0 | 1007 } |
| 1008 | |
| 1009 // Get the data at an arbitrary (sort of) data index. | |
|
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1010 ProfileData* MethodData::data_at(int data_index) const { |
| 0 | 1011 if (out_of_bounds(data_index)) { |
| 1012 return NULL; | |
| 1013 } | |
| 1014 DataLayout* data_layout = data_layout_at(data_index); | |
| 941 | 1015 return data_layout->data_in(); |
| 1016 } | |
| 0 | 1017 |
| 941 | 1018 ProfileData* DataLayout::data_in() { |
| 1019 switch (tag()) { | |
| 0 | 1020 case DataLayout::no_tag: |
| 1021 default: | |
| 1022 ShouldNotReachHere(); | |
| 1023 return NULL; | |
| 1024 case DataLayout::bit_data_tag: | |
| 941 | 1025 return new BitData(this); |
| 0 | 1026 case DataLayout::counter_data_tag: |
| 941 | 1027 return new CounterData(this); |
| 0 | 1028 case DataLayout::jump_data_tag: |
| 941 | 1029 return new JumpData(this); |
| 0 | 1030 case DataLayout::receiver_type_data_tag: |
| 941 | 1031 return new ReceiverTypeData(this); |
| 0 | 1032 case DataLayout::virtual_call_data_tag: |
| 941 | 1033 return new VirtualCallData(this); |
| 0 | 1034 case DataLayout::ret_data_tag: |
| 941 | 1035 return new RetData(this); |
| 0 | 1036 case DataLayout::branch_data_tag: |
| 941 | 1037 return new BranchData(this); |
| 0 | 1038 case DataLayout::multi_branch_data_tag: |
| 941 | 1039 return new MultiBranchData(this); |
|
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1040 case DataLayout::arg_info_data_tag: |
| 941 | 1041 return new ArgInfoData(this); |
|
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1042 case DataLayout::call_type_data_tag: |
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1043 return new CallTypeData(this); |
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1044 case DataLayout::virtual_call_type_data_tag: |
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1045 return new VirtualCallTypeData(this); |
|
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1046 case DataLayout::parameters_type_data_tag: |
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1047 return new ParametersTypeData(this); |
| 0 | 1048 }; |
| 1049 } | |
| 1050 | |
| 1051 // Iteration over data. | |
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1052 ProfileData* MethodData::next_data(ProfileData* current) const { |
| 0 | 1053 int current_index = dp_to_di(current->dp()); |
| 1054 int next_index = current_index + current->size_in_bytes(); | |
| 1055 ProfileData* next = data_at(next_index); | |
| 1056 return next; | |
| 1057 } | |
| 1058 | |
| 1059 // Give each of the data entries a chance to perform specific | |
| 1060 // data initialization. | |
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1061 void MethodData::post_initialize(BytecodeStream* stream) { |
| 0 | 1062 ResourceMark rm; |
| 1063 ProfileData* data; | |
| 1064 for (data = first_data(); is_valid(data); data = next_data(data)) { | |
| 1065 stream->set_start(data->bci()); | |
| 1066 stream->next(); | |
| 1067 data->post_initialize(stream, this); | |
| 1068 } | |
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1069 if (_parameters_type_data_di != -1) { |
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1070 parameters_type_data()->post_initialize(NULL, this); |
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1071 } |
| 0 | 1072 } |
| 1073 | |
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1074 // Initialize the MethodData* corresponding to a given method. |
|
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1075 MethodData::MethodData(methodHandle method, int size, TRAPS) |
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1076 : _extra_data_lock(Monitor::leaf, "MDO extra data lock") { |
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1077 No_Safepoint_Verifier no_safepoint; // init function atomic wrt GC |
| 0 | 1078 ResourceMark rm; |
| 1079 // Set the method back-pointer. | |
| 1080 _method = method(); | |
| 1783 | 1081 |
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1082 init(); |
| 0 | 1083 set_creation_mileage(mileage_of(method())); |
| 1084 | |
| 1085 // Go through the bytecodes and allocate and initialize the | |
| 1086 // corresponding data cells. | |
| 1087 int data_size = 0; | |
| 1088 int empty_bc_count = 0; // number of bytecodes lacking data | |
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1089 _data[0] = 0; // apparently not set below. |
| 0 | 1090 BytecodeStream stream(method); |
| 1091 Bytecodes::Code c; | |
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1092 bool needs_speculative_traps = false; |
| 0 | 1093 while ((c = stream.next()) >= 0) { |
| 1094 int size_in_bytes = initialize_data(&stream, data_size); | |
| 1095 data_size += size_in_bytes; | |
| 1096 if (size_in_bytes == 0) empty_bc_count += 1; | |
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1097 needs_speculative_traps = needs_speculative_traps || is_speculative_trap_bytecode(c); |
| 0 | 1098 } |
| 1099 _data_size = data_size; | |
| 1100 int object_size = in_bytes(data_offset()) + data_size; | |
| 1101 | |
| 1102 // Add some extra DataLayout cells (at least one) to track stray traps. | |
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1103 int extra_data_count = compute_extra_data_count(data_size, empty_bc_count, needs_speculative_traps); |
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1104 int extra_size = extra_data_count * DataLayout::compute_size_in_bytes(0); |
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1105 |
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1106 // Let's zero the space for the extra data |
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1107 Copy::zero_to_bytes(((address)_data) + data_size, extra_size); |
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1108 |
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1109 // Add a cell to record information about modified arguments. |
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1110 // Set up _args_modified array after traps cells so that |
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1111 // the code for traps cells works. |
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1112 DataLayout *dp = data_layout_at(data_size + extra_size); |
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1113 |
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1114 int arg_size = method->size_of_parameters(); |
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1115 dp->initialize(DataLayout::arg_info_data_tag, 0, arg_size+1); |
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1116 |
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1117 int arg_data_size = DataLayout::compute_size_in_bytes(arg_size+1); |
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1118 object_size += extra_size + arg_data_size; |
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1119 |
|
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1120 int parms_cell = ParametersTypeData::compute_cell_count(method()); |
|
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1121 // If we are profiling parameters, we reserver an area near the end |
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1122 // of the MDO after the slots for bytecodes (because there's no bci |
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1123 // for method entry so they don't fit with the framework for the |
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1124 // profiling of bytecodes). We store the offset within the MDO of |
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1125 // this area (or -1 if no parameter is profiled) |
|
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1126 if (parms_cell > 0) { |
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1127 object_size += DataLayout::compute_size_in_bytes(parms_cell); |
|
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1128 _parameters_type_data_di = data_size + extra_size + arg_data_size; |
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1129 DataLayout *dp = data_layout_at(data_size + extra_size + arg_data_size); |
|
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1130 dp->initialize(DataLayout::parameters_type_data_tag, 0, parms_cell); |
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1131 } else { |
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1132 _parameters_type_data_di = -1; |
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1133 } |
| 0 | 1134 |
| 1135 // Set an initial hint. Don't use set_hint_di() because | |
| 1136 // first_di() may be out of bounds if data_size is 0. | |
| 1137 // In that situation, _hint_di is never used, but at | |
| 1138 // least well-defined. | |
| 1139 _hint_di = first_di(); | |
| 1140 | |
| 1141 post_initialize(&stream); | |
| 1142 | |
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1143 set_size(object_size); |
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1144 } |
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1145 |
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1146 void MethodData::init() { |
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1147 _invocation_counter.init(); |
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1148 _backedge_counter.init(); |
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1149 _invocation_counter_start = 0; |
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1150 _backedge_counter_start = 0; |
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1151 _num_loops = 0; |
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1152 _num_blocks = 0; |
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1153 _highest_comp_level = 0; |
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1154 _highest_osr_comp_level = 0; |
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1155 _would_profile = true; |
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1156 |
| 17780 | 1157 #if INCLUDE_RTM_OPT |
| 1158 _rtm_state = NoRTM; // No RTM lock eliding by default | |
| 1159 if (UseRTMLocking && | |
| 1160 !CompilerOracle::has_option_string(_method, "NoRTMLockEliding")) { | |
| 1161 if (CompilerOracle::has_option_string(_method, "UseRTMLockEliding") || !UseRTMDeopt) { | |
| 1162 // Generate RTM lock eliding code without abort ratio calculation code. | |
| 1163 _rtm_state = UseRTM; | |
| 1164 } else if (UseRTMDeopt) { | |
| 1165 // Generate RTM lock eliding code and include abort ratio calculation | |
| 1166 // code if UseRTMDeopt is on. | |
| 1167 _rtm_state = ProfileRTM; | |
| 1168 } | |
| 1169 } | |
| 1170 #endif | |
| 1171 | |
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1172 // Initialize flags and trap history. |
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1173 _nof_decompiles = 0; |
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1174 _nof_overflow_recompiles = 0; |
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1175 _nof_overflow_traps = 0; |
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1176 clear_escape_info(); |
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1177 assert(sizeof(_trap_hist) % sizeof(HeapWord) == 0, "align"); |
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1178 Copy::zero_to_words((HeapWord*) &_trap_hist, |
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1179 sizeof(_trap_hist) / sizeof(HeapWord)); |
| 0 | 1180 } |
| 1181 | |
| 1182 // Get a measure of how much mileage the method has on it. | |
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1183 int MethodData::mileage_of(Method* method) { |
| 0 | 1184 int mileage = 0; |
| 1783 | 1185 if (TieredCompilation) { |
| 1186 mileage = MAX2(method->invocation_count(), method->backedge_count()); | |
| 1187 } else { | |
| 1188 int iic = method->interpreter_invocation_count(); | |
| 1189 if (mileage < iic) mileage = iic; | |
|
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1190 MethodCounters* mcs = method->method_counters(); |
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1191 if (mcs != NULL) { |
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1192 InvocationCounter* ic = mcs->invocation_counter(); |
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1193 InvocationCounter* bc = mcs->backedge_counter(); |
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1194 int icval = ic->count(); |
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1195 if (ic->carry()) icval += CompileThreshold; |
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1196 if (mileage < icval) mileage = icval; |
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1197 int bcval = bc->count(); |
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1198 if (bc->carry()) bcval += CompileThreshold; |
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1199 if (mileage < bcval) mileage = bcval; |
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1200 } |
| 1783 | 1201 } |
| 0 | 1202 return mileage; |
| 1203 } | |
| 1204 | |
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1205 bool MethodData::is_mature() const { |
| 1783 | 1206 return CompilationPolicy::policy()->is_mature(_method); |
| 0 | 1207 } |
| 1208 | |
| 1209 // Translate a bci to its corresponding data index (di). | |
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1210 address MethodData::bci_to_dp(int bci) { |
| 0 | 1211 ResourceMark rm; |
| 1212 ProfileData* data = data_before(bci); | |
| 1213 ProfileData* prev = NULL; | |
| 1214 for ( ; is_valid(data); data = next_data(data)) { | |
| 1215 if (data->bci() >= bci) { | |
| 1216 if (data->bci() == bci) set_hint_di(dp_to_di(data->dp())); | |
| 1217 else if (prev != NULL) set_hint_di(dp_to_di(prev->dp())); | |
| 1218 return data->dp(); | |
| 1219 } | |
| 1220 prev = data; | |
| 1221 } | |
| 1222 return (address)limit_data_position(); | |
| 1223 } | |
| 1224 | |
| 1225 // Translate a bci to its corresponding data, or NULL. | |
|
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1226 ProfileData* MethodData::bci_to_data(int bci) { |
| 0 | 1227 ProfileData* data = data_before(bci); |
| 1228 for ( ; is_valid(data); data = next_data(data)) { | |
| 1229 if (data->bci() == bci) { | |
| 1230 set_hint_di(dp_to_di(data->dp())); | |
| 1231 return data; | |
| 1232 } else if (data->bci() > bci) { | |
| 1233 break; | |
| 1234 } | |
| 1235 } | |
|
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1236 return bci_to_extra_data(bci, NULL, false); |
| 0 | 1237 } |
| 1238 | |
|
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1239 DataLayout* MethodData::next_extra(DataLayout* dp) { |
|
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1240 int nb_cells = 0; |
|
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1241 switch(dp->tag()) { |
|
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1242 case DataLayout::bit_data_tag: |
|
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1243 case DataLayout::no_tag: |
|
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1244 nb_cells = BitData::static_cell_count(); |
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1245 break; |
|
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1246 case DataLayout::speculative_trap_data_tag: |
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1247 nb_cells = SpeculativeTrapData::static_cell_count(); |
|
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1248 break; |
|
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|
1249 default: |
|
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1250 fatal(err_msg("unexpected tag %d", dp->tag())); |
|
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1251 } |
|
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1252 return (DataLayout*)((address)dp + DataLayout::compute_size_in_bytes(nb_cells)); |
|
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1253 } |
|
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1254 |
|
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1255 ProfileData* MethodData::bci_to_extra_data_helper(int bci, Method* m, DataLayout*& dp, bool concurrent) { |
|
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1256 DataLayout* end = extra_data_limit(); |
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1257 |
|
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1258 for (;; dp = next_extra(dp)) { |
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1259 assert(dp < end, "moved past end of extra data"); |
| 0 | 1260 // No need for "OrderAccess::load_acquire" ops, |
| 1261 // since the data structure is monotonic. | |
|
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1262 switch(dp->tag()) { |
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1263 case DataLayout::no_tag: |
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1264 return NULL; |
|
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1265 case DataLayout::arg_info_data_tag: |
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1266 dp = end; |
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1267 return NULL; // ArgInfoData is at the end of extra data section. |
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1268 case DataLayout::bit_data_tag: |
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1269 if (m == NULL && dp->bci() == bci) { |
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1270 return new BitData(dp); |
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1271 } |
|
45
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1272 break; |
|
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1273 case DataLayout::speculative_trap_data_tag: |
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1274 if (m != NULL) { |
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1275 SpeculativeTrapData* data = new SpeculativeTrapData(dp); |
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1276 // data->method() may be null in case of a concurrent |
|
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1277 // allocation. Maybe it's for the same method. Try to use that |
|
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1278 // entry in that case. |
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1279 if (dp->bci() == bci) { |
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1280 if (data->method() == NULL) { |
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1281 assert(concurrent, "impossible because no concurrent allocation"); |
|
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1282 return NULL; |
|
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1283 } else if (data->method() == m) { |
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1284 return data; |
|
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1285 } |
|
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1286 } |
|
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1287 } |
|
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1288 break; |
|
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1289 default: |
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1290 fatal(err_msg("unexpected tag %d", dp->tag())); |
| 0 | 1291 } |
| 1292 } | |
|
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1293 return NULL; |
|
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1294 } |
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1295 |
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1296 |
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1297 // Translate a bci to its corresponding extra data, or NULL. |
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1298 ProfileData* MethodData::bci_to_extra_data(int bci, Method* m, bool create_if_missing) { |
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1299 // This code assumes an entry for a SpeculativeTrapData is 2 cells |
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1300 assert(2*DataLayout::compute_size_in_bytes(BitData::static_cell_count()) == |
|
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1301 DataLayout::compute_size_in_bytes(SpeculativeTrapData::static_cell_count()), |
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1302 "code needs to be adjusted"); |
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1303 |
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1304 DataLayout* dp = extra_data_base(); |
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1305 DataLayout* end = extra_data_limit(); |
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1306 |
|
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1307 // Allocation in the extra data space has to be atomic because not |
|
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1308 // all entries have the same size and non atomic concurrent |
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1309 // allocation would result in a corrupted extra data space. |
|
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1310 ProfileData* result = bci_to_extra_data_helper(bci, m, dp, true); |
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1311 if (result != NULL) { |
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1312 return result; |
|
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1313 } |
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1314 |
|
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1315 if (create_if_missing && dp < end) { |
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1316 MutexLocker ml(&_extra_data_lock); |
|
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1317 // Check again now that we have the lock. Another thread may |
|
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1318 // have added extra data entries. |
|
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1319 ProfileData* result = bci_to_extra_data_helper(bci, m, dp, false); |
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1320 if (result != NULL || dp >= end) { |
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1321 return result; |
|
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1322 } |
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1323 |
|
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1324 assert(dp->tag() == DataLayout::no_tag || (dp->tag() == DataLayout::speculative_trap_data_tag && m != NULL), "should be free"); |
|
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1325 assert(next_extra(dp)->tag() == DataLayout::no_tag || next_extra(dp)->tag() == DataLayout::arg_info_data_tag, "should be free or arg info"); |
|
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1326 u1 tag = m == NULL ? DataLayout::bit_data_tag : DataLayout::speculative_trap_data_tag; |
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1327 // SpeculativeTrapData is 2 slots. Make sure we have room. |
|
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1328 if (m != NULL && next_extra(dp)->tag() != DataLayout::no_tag) { |
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1329 return NULL; |
|
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1330 } |
|
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1331 DataLayout temp; |
|
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1332 temp.initialize(tag, bci, 0); |
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1333 |
|
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1334 dp->set_header(temp.header()); |
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1335 assert(dp->tag() == tag, "sane"); |
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1336 assert(dp->bci() == bci, "no concurrent allocation"); |
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1337 if (tag == DataLayout::bit_data_tag) { |
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1338 return new BitData(dp); |
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1339 } else { |
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1340 SpeculativeTrapData* data = new SpeculativeTrapData(dp); |
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1341 data->set_method(m); |
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1342 return data; |
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1343 } |
| 0 | 1344 } |
| 1345 return NULL; | |
| 1346 } | |
| 1347 | |
|
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1348 ArgInfoData *MethodData::arg_info() { |
|
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1349 DataLayout* dp = extra_data_base(); |
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1350 DataLayout* end = extra_data_limit(); |
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1351 for (; dp < end; dp = next_extra(dp)) { |
|
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1352 if (dp->tag() == DataLayout::arg_info_data_tag) |
|
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1353 return new ArgInfoData(dp); |
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1354 } |
|
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1355 return NULL; |
|
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|
1356 } |
|
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|
1357 |
|
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1358 // Printing |
|
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1359 |
| 0 | 1360 #ifndef PRODUCT |
|
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1361 |
|
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1362 void MethodData::print_on(outputStream* st) const { |
|
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1363 assert(is_methodData(), "should be method data"); |
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1364 st->print("method data for "); |
|
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1365 method()->print_value_on(st); |
|
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1366 st->cr(); |
|
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1367 print_data_on(st); |
|
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|
1368 } |
|
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1369 |
|
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1370 #endif //PRODUCT |
|
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1371 |
|
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1372 void MethodData::print_value_on(outputStream* st) const { |
|
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1373 assert(is_methodData(), "should be method data"); |
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1374 st->print("method data for "); |
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1375 method()->print_value_on(st); |
|
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1376 } |
|
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|
1377 |
|
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|
1378 #ifndef PRODUCT |
|
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|
1379 void MethodData::print_data_on(outputStream* st) const { |
| 0 | 1380 ResourceMark rm; |
| 1381 ProfileData* data = first_data(); | |
|
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1382 if (_parameters_type_data_di != -1) { |
|
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|
1383 parameters_type_data()->print_data_on(st); |
|
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1384 } |
| 0 | 1385 for ( ; is_valid(data); data = next_data(data)) { |
| 1386 st->print("%d", dp_to_di(data->dp())); | |
| 1387 st->fill_to(6); | |
|
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1388 data->print_data_on(st, this); |
| 0 | 1389 } |
|
45
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1390 st->print_cr("--- Extra data:"); |
| 0 | 1391 DataLayout* dp = extra_data_base(); |
| 1392 DataLayout* end = extra_data_limit(); | |
|
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1393 for (;; dp = next_extra(dp)) { |
|
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|
1394 assert(dp < end, "moved past end of extra data"); |
| 0 | 1395 // No need for "OrderAccess::load_acquire" ops, |
| 1396 // since the data structure is monotonic. | |
|
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1397 switch(dp->tag()) { |
|
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|
1398 case DataLayout::no_tag: |
|
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|
1399 continue; |
|
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|
1400 case DataLayout::bit_data_tag: |
|
45
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|
1401 data = new BitData(dp); |
|
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|
1402 break; |
|
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|
1403 case DataLayout::speculative_trap_data_tag: |
|
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1404 data = new SpeculativeTrapData(dp); |
|
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|
1405 break; |
|
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|
1406 case DataLayout::arg_info_data_tag: |
|
45
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|
1407 data = new ArgInfoData(dp); |
|
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|
1408 dp = end; // ArgInfoData is at the end of extra data section. |
|
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|
1409 break; |
|
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|
1410 default: |
|
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|
1411 fatal(err_msg("unexpected tag %d", dp->tag())); |
|
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|
1412 } |
| 0 | 1413 st->print("%d", dp_to_di(data->dp())); |
| 1414 st->fill_to(6); | |
| 1415 data->print_data_on(st); | |
|
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|
1416 if (dp >= end) return; |
| 0 | 1417 } |
| 1418 } | |
| 1419 #endif | |
| 1420 | |
| 7956 | 1421 #if INCLUDE_SERVICES |
| 1422 // Size Statistics | |
| 1423 void MethodData::collect_statistics(KlassSizeStats *sz) const { | |
| 1424 int n = sz->count(this); | |
| 1425 sz->_method_data_bytes += n; | |
| 1426 sz->_method_all_bytes += n; | |
| 1427 sz->_rw_bytes += n; | |
| 1428 } | |
| 1429 #endif // INCLUDE_SERVICES | |
|
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|
1430 |
|
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|
1431 // Verification |
|
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|
1432 |
|
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|
1433 void MethodData::verify_on(outputStream* st) { |
|
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|
1434 guarantee(is_methodData(), "object must be method data"); |
|
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|
1435 // guarantee(m->is_perm(), "should be in permspace"); |
|
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|
1436 this->verify_data_on(st); |
|
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|
1437 } |
|
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|
1438 |
|
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|
1439 void MethodData::verify_data_on(outputStream* st) { |
| 0 | 1440 NEEDS_CLEANUP; |
| 1441 // not yet implemented. | |
| 1442 } | |
|
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|
1443 |
|
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|
1444 bool MethodData::profile_jsr292(methodHandle m, int bci) { |
|
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|
1445 if (m->is_compiled_lambda_form()) { |
|
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|
1446 return true; |
|
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|
1447 } |
|
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|
1448 |
|
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|
1449 Bytecode_invoke inv(m , bci); |
|
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|
1450 return inv.is_invokedynamic() || inv.is_invokehandle(); |
|
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|
1451 } |
|
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|
1452 |
|
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|
1453 int MethodData::profile_arguments_flag() { |
|
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|
1454 return TypeProfileLevel % 10; |
|
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|
1455 } |
|
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|
1456 |
|
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|
1457 bool MethodData::profile_arguments() { |
|
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|
1458 return profile_arguments_flag() > no_type_profile && profile_arguments_flag() <= type_profile_all; |
|
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|
1459 } |
|
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|
1460 |
|
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|
1461 bool MethodData::profile_arguments_jsr292_only() { |
|
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|
1462 return profile_arguments_flag() == type_profile_jsr292; |
|
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|
1463 } |
|
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|
1464 |
|
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|
1465 bool MethodData::profile_all_arguments() { |
|
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|
1466 return profile_arguments_flag() == type_profile_all; |
|
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|
1467 } |
|
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|
1468 |
|
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|
1469 bool MethodData::profile_arguments_for_invoke(methodHandle m, int bci) { |
|
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|
1470 if (!profile_arguments()) { |
|
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|
1471 return false; |
|
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|
1472 } |
|
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|
1473 |
|
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|
1474 if (profile_all_arguments()) { |
|
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|
1475 return true; |
|
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|
1476 } |
|
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|
1477 |
|
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|
1478 assert(profile_arguments_jsr292_only(), "inconsistent"); |
|
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|
1479 return profile_jsr292(m, bci); |
|
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|
1480 } |
|
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|
1481 |
|
12882
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|
1482 int MethodData::profile_return_flag() { |
|
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|
1483 return (TypeProfileLevel % 100) / 10; |
|
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|
1484 } |
|
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|
1485 |
|
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|
1486 bool MethodData::profile_return() { |
|
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|
1487 return profile_return_flag() > no_type_profile && profile_return_flag() <= type_profile_all; |
|
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|
1488 } |
|
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|
1489 |
|
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|
1490 bool MethodData::profile_return_jsr292_only() { |
|
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|
1491 return profile_return_flag() == type_profile_jsr292; |
|
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|
1492 } |
|
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|
1493 |
|
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|
1494 bool MethodData::profile_all_return() { |
|
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|
1495 return profile_return_flag() == type_profile_all; |
|
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|
1496 } |
|
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|
1497 |
|
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|
1498 bool MethodData::profile_return_for_invoke(methodHandle m, int bci) { |
|
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|
1499 if (!profile_return()) { |
|
ce0cc25bc5e2
8026054: New type profiling points: type of return values at calls
roland
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12875
diff
changeset
|
1500 return false; |
|
ce0cc25bc5e2
8026054: New type profiling points: type of return values at calls
roland
parents:
12875
diff
changeset
|
1501 } |
|
ce0cc25bc5e2
8026054: New type profiling points: type of return values at calls
roland
parents:
12875
diff
changeset
|
1502 |
|
ce0cc25bc5e2
8026054: New type profiling points: type of return values at calls
roland
parents:
12875
diff
changeset
|
1503 if (profile_all_return()) { |
|
ce0cc25bc5e2
8026054: New type profiling points: type of return values at calls
roland
parents:
12875
diff
changeset
|
1504 return true; |
|
ce0cc25bc5e2
8026054: New type profiling points: type of return values at calls
roland
parents:
12875
diff
changeset
|
1505 } |
|
ce0cc25bc5e2
8026054: New type profiling points: type of return values at calls
roland
parents:
12875
diff
changeset
|
1506 |
|
ce0cc25bc5e2
8026054: New type profiling points: type of return values at calls
roland
parents:
12875
diff
changeset
|
1507 assert(profile_return_jsr292_only(), "inconsistent"); |
|
ce0cc25bc5e2
8026054: New type profiling points: type of return values at calls
roland
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12875
diff
changeset
|
1508 return profile_jsr292(m, bci); |
|
ce0cc25bc5e2
8026054: New type profiling points: type of return values at calls
roland
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diff
changeset
|
1509 } |
|
12962
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12882
diff
changeset
|
1510 |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12882
diff
changeset
|
1511 int MethodData::profile_parameters_flag() { |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12882
diff
changeset
|
1512 return TypeProfileLevel / 100; |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12882
diff
changeset
|
1513 } |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12882
diff
changeset
|
1514 |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12882
diff
changeset
|
1515 bool MethodData::profile_parameters() { |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12882
diff
changeset
|
1516 return profile_parameters_flag() > no_type_profile && profile_parameters_flag() <= type_profile_all; |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12882
diff
changeset
|
1517 } |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12882
diff
changeset
|
1518 |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12882
diff
changeset
|
1519 bool MethodData::profile_parameters_jsr292_only() { |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12882
diff
changeset
|
1520 return profile_parameters_flag() == type_profile_jsr292; |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12882
diff
changeset
|
1521 } |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12882
diff
changeset
|
1522 |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12882
diff
changeset
|
1523 bool MethodData::profile_all_parameters() { |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12882
diff
changeset
|
1524 return profile_parameters_flag() == type_profile_all; |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12882
diff
changeset
|
1525 } |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12882
diff
changeset
|
1526 |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12882
diff
changeset
|
1527 bool MethodData::profile_parameters_for_method(methodHandle m) { |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12882
diff
changeset
|
1528 if (!profile_parameters()) { |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12882
diff
changeset
|
1529 return false; |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12882
diff
changeset
|
1530 } |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12882
diff
changeset
|
1531 |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12882
diff
changeset
|
1532 if (profile_all_parameters()) { |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12882
diff
changeset
|
1533 return true; |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12882
diff
changeset
|
1534 } |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12882
diff
changeset
|
1535 |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12882
diff
changeset
|
1536 assert(profile_parameters_jsr292_only(), "inconsistent"); |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12882
diff
changeset
|
1537 return m->is_compiled_lambda_form(); |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12882
diff
changeset
|
1538 } |
|
17728
b8413a9cbb84
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
13080
diff
changeset
|
1539 |
|
b8413a9cbb84
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
13080
diff
changeset
|
1540 void MethodData::clean_extra_data_helper(DataLayout* dp, int shift, bool reset) { |
|
b8413a9cbb84
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
13080
diff
changeset
|
1541 if (shift == 0) { |
|
b8413a9cbb84
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
13080
diff
changeset
|
1542 return; |
|
b8413a9cbb84
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
13080
diff
changeset
|
1543 } |
|
b8413a9cbb84
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
13080
diff
changeset
|
1544 if (!reset) { |
|
b8413a9cbb84
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
13080
diff
changeset
|
1545 // Move all cells of trap entry at dp left by "shift" cells |
|
b8413a9cbb84
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
13080
diff
changeset
|
1546 intptr_t* start = (intptr_t*)dp; |
|
b8413a9cbb84
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
13080
diff
changeset
|
1547 intptr_t* end = (intptr_t*)next_extra(dp); |
|
b8413a9cbb84
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
13080
diff
changeset
|
1548 for (intptr_t* ptr = start; ptr < end; ptr++) { |
|
b8413a9cbb84
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
13080
diff
changeset
|
1549 *(ptr-shift) = *ptr; |
|
b8413a9cbb84
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
13080
diff
changeset
|
1550 } |
|
b8413a9cbb84
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
13080
diff
changeset
|
1551 } else { |
|
b8413a9cbb84
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
13080
diff
changeset
|
1552 // Reset "shift" cells stopping at dp |
|
b8413a9cbb84
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
13080
diff
changeset
|
1553 intptr_t* start = ((intptr_t*)dp) - shift; |
|
b8413a9cbb84
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
13080
diff
changeset
|
1554 intptr_t* end = (intptr_t*)dp; |
|
b8413a9cbb84
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
13080
diff
changeset
|
1555 for (intptr_t* ptr = start; ptr < end; ptr++) { |
|
b8413a9cbb84
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
13080
diff
changeset
|
1556 *ptr = 0; |
|
b8413a9cbb84
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
13080
diff
changeset
|
1557 } |
|
b8413a9cbb84
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
13080
diff
changeset
|
1558 } |
|
b8413a9cbb84
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
13080
diff
changeset
|
1559 } |
|
b8413a9cbb84
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
13080
diff
changeset
|
1560 |
|
b8413a9cbb84
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
13080
diff
changeset
|
1561 // Remove SpeculativeTrapData entries that reference an unloaded |
|
b8413a9cbb84
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
13080
diff
changeset
|
1562 // method |
|
b8413a9cbb84
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
13080
diff
changeset
|
1563 void MethodData::clean_extra_data(BoolObjectClosure* is_alive) { |
|
b8413a9cbb84
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
13080
diff
changeset
|
1564 DataLayout* dp = extra_data_base(); |
|
b8413a9cbb84
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
13080
diff
changeset
|
1565 DataLayout* end = extra_data_limit(); |
|
b8413a9cbb84
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
13080
diff
changeset
|
1566 |
|
b8413a9cbb84
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
13080
diff
changeset
|
1567 int shift = 0; |
|
b8413a9cbb84
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
13080
diff
changeset
|
1568 for (; dp < end; dp = next_extra(dp)) { |
|
b8413a9cbb84
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
13080
diff
changeset
|
1569 switch(dp->tag()) { |
|
b8413a9cbb84
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
13080
diff
changeset
|
1570 case DataLayout::speculative_trap_data_tag: { |
|
b8413a9cbb84
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
13080
diff
changeset
|
1571 SpeculativeTrapData* data = new SpeculativeTrapData(dp); |
|
b8413a9cbb84
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
13080
diff
changeset
|
1572 Method* m = data->method(); |
|
b8413a9cbb84
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
13080
diff
changeset
|
1573 assert(m != NULL, "should have a method"); |
|
b8413a9cbb84
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
13080
diff
changeset
|
1574 if (!m->method_holder()->is_loader_alive(is_alive)) { |
|
b8413a9cbb84
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
13080
diff
changeset
|
1575 // "shift" accumulates the number of cells for dead |
|
b8413a9cbb84
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
13080
diff
changeset
|
1576 // SpeculativeTrapData entries that have been seen so |
|
b8413a9cbb84
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
13080
diff
changeset
|
1577 // far. Following entries must be shifted left by that many |
|
b8413a9cbb84
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
13080
diff
changeset
|
1578 // cells to remove the dead SpeculativeTrapData entries. |
|
b8413a9cbb84
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
13080
diff
changeset
|
1579 shift += (int)((intptr_t*)next_extra(dp) - (intptr_t*)dp); |
|
b8413a9cbb84
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
13080
diff
changeset
|
1580 } else { |
|
b8413a9cbb84
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
13080
diff
changeset
|
1581 // Shift this entry left if it follows dead |
|
b8413a9cbb84
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
13080
diff
changeset
|
1582 // SpeculativeTrapData entries |
|
b8413a9cbb84
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
13080
diff
changeset
|
1583 clean_extra_data_helper(dp, shift); |
|
b8413a9cbb84
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
13080
diff
changeset
|
1584 } |
|
b8413a9cbb84
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
13080
diff
changeset
|
1585 break; |
|
b8413a9cbb84
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
13080
diff
changeset
|
1586 } |
|
b8413a9cbb84
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
13080
diff
changeset
|
1587 case DataLayout::bit_data_tag: |
|
b8413a9cbb84
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
13080
diff
changeset
|
1588 // Shift this entry left if it follows dead SpeculativeTrapData |
|
b8413a9cbb84
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
13080
diff
changeset
|
1589 // entries |
|
b8413a9cbb84
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
13080
diff
changeset
|
1590 clean_extra_data_helper(dp, shift); |
|
b8413a9cbb84
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
13080
diff
changeset
|
1591 continue; |
|
b8413a9cbb84
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
13080
diff
changeset
|
1592 case DataLayout::no_tag: |
|
b8413a9cbb84
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
13080
diff
changeset
|
1593 case DataLayout::arg_info_data_tag: |
|
b8413a9cbb84
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
13080
diff
changeset
|
1594 // We are at end of the live trap entries. The previous "shift" |
|
b8413a9cbb84
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
13080
diff
changeset
|
1595 // cells contain entries that are either dead or were shifted |
|
b8413a9cbb84
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
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diff
changeset
|
1596 // left. They need to be reset to no_tag |
|
b8413a9cbb84
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
13080
diff
changeset
|
1597 clean_extra_data_helper(dp, shift, true); |
|
b8413a9cbb84
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
13080
diff
changeset
|
1598 return; |
|
b8413a9cbb84
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
13080
diff
changeset
|
1599 default: |
|
b8413a9cbb84
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
13080
diff
changeset
|
1600 fatal(err_msg("unexpected tag %d", dp->tag())); |
|
b8413a9cbb84
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
13080
diff
changeset
|
1601 } |
|
b8413a9cbb84
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
13080
diff
changeset
|
1602 } |
|
b8413a9cbb84
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
13080
diff
changeset
|
1603 } |
|
b8413a9cbb84
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
13080
diff
changeset
|
1604 |
|
b8413a9cbb84
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
13080
diff
changeset
|
1605 // Verify there's no unloaded method referenced by a |
|
b8413a9cbb84
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
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diff
changeset
|
1606 // SpeculativeTrapData entry |
|
b8413a9cbb84
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
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diff
changeset
|
1607 void MethodData::verify_extra_data_clean(BoolObjectClosure* is_alive) { |
|
b8413a9cbb84
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
13080
diff
changeset
|
1608 #ifdef ASSERT |
|
b8413a9cbb84
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
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diff
changeset
|
1609 DataLayout* dp = extra_data_base(); |
|
b8413a9cbb84
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
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diff
changeset
|
1610 DataLayout* end = extra_data_limit(); |
|
b8413a9cbb84
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
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diff
changeset
|
1611 |
|
b8413a9cbb84
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
13080
diff
changeset
|
1612 for (; dp < end; dp = next_extra(dp)) { |
|
b8413a9cbb84
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
13080
diff
changeset
|
1613 switch(dp->tag()) { |
|
b8413a9cbb84
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
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diff
changeset
|
1614 case DataLayout::speculative_trap_data_tag: { |
|
b8413a9cbb84
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
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diff
changeset
|
1615 SpeculativeTrapData* data = new SpeculativeTrapData(dp); |
|
b8413a9cbb84
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
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diff
changeset
|
1616 Method* m = data->method(); |
|
b8413a9cbb84
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
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diff
changeset
|
1617 assert(m != NULL && m->method_holder()->is_loader_alive(is_alive), "Method should exist"); |
|
b8413a9cbb84
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
13080
diff
changeset
|
1618 break; |
|
b8413a9cbb84
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
13080
diff
changeset
|
1619 } |
|
b8413a9cbb84
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
13080
diff
changeset
|
1620 case DataLayout::bit_data_tag: |
|
b8413a9cbb84
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
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1621 continue; |
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1622 case DataLayout::no_tag: |
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1623 case DataLayout::arg_info_data_tag: |
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1624 return; |
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1625 default: |
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1626 fatal(err_msg("unexpected tag %d", dp->tag())); |
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1627 } |
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1628 } |
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1629 #endif |
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1630 } |
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1631 |
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1632 void MethodData::clean_method_data(BoolObjectClosure* is_alive) { |
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1633 for (ProfileData* data = first_data(); |
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1634 is_valid(data); |
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1635 data = next_data(data)) { |
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1636 data->clean_weak_klass_links(is_alive); |
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1637 } |
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1638 ParametersTypeData* parameters = parameters_type_data(); |
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1639 if (parameters != NULL) { |
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1640 parameters->clean_weak_klass_links(is_alive); |
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1641 } |
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1642 |
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1643 clean_extra_data(is_alive); |
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1644 verify_extra_data_clean(is_alive); |
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1645 } |