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1 // Copyright 2012 the V8 project authors. All rights reserved. | 1 // Copyright 2012 the V8 project authors. All rights reserved. |
2 // Redistribution and use in source and binary forms, with or without | 2 // Redistribution and use in source and binary forms, with or without |
3 // modification, are permitted provided that the following conditions are | 3 // modification, are permitted provided that the following conditions are |
4 // met: | 4 // met: |
5 // | 5 // |
6 // * Redistributions of source code must retain the above copyright | 6 // * Redistributions of source code must retain the above copyright |
7 // notice, this list of conditions and the following disclaimer. | 7 // notice, this list of conditions and the following disclaimer. |
8 // * Redistributions in binary form must reproduce the above | 8 // * Redistributions in binary form must reproduce the above |
9 // copyright notice, this list of conditions and the following | 9 // copyright notice, this list of conditions and the following |
10 // disclaimer in the documentation and/or other materials provided | 10 // disclaimer in the documentation and/or other materials provided |
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453 // optimizations. When using the always_opt flag we disregard the | 453 // optimizations. When using the always_opt flag we disregard the |
454 // optimizable marker in the code object and optimize anyway. This | 454 // optimizable marker in the code object and optimize anyway. This |
455 // is safe as long as the unoptimized code has deoptimization | 455 // is safe as long as the unoptimized code has deoptimization |
456 // support. | 456 // support. |
457 ASSERT(FLAG_always_opt || info()->shared_info()->code()->optimizable()); | 457 ASSERT(FLAG_always_opt || info()->shared_info()->code()->optimizable()); |
458 ASSERT(info()->shared_info()->has_deoptimization_support()); | 458 ASSERT(info()->shared_info()->has_deoptimization_support()); |
459 | 459 |
460 if (FLAG_trace_hydrogen) { | 460 if (FLAG_trace_hydrogen) { |
461 Handle<String> name = info()->function()->debug_name(); | 461 Handle<String> name = info()->function()->debug_name(); |
462 PrintF("-----------------------------------------------------------\n"); | 462 PrintF("-----------------------------------------------------------\n"); |
463 PrintF("Compiling method %s using hydrogen\n", *name->ToCString()); | 463 PrintF("Compiling method %s using hydrogen\n", name->ToCString().get()); |
464 isolate()->GetHTracer()->TraceCompilation(info()); | 464 isolate()->GetHTracer()->TraceCompilation(info()); |
465 } | 465 } |
466 | 466 |
467 // Type-check the function. | 467 // Type-check the function. |
468 AstTyper::Run(info()); | 468 AstTyper::Run(info()); |
469 | 469 |
470 graph_builder_ = FLAG_emit_opt_code_positions | 470 graph_builder_ = FLAG_emit_opt_code_positions |
471 ? new(info()->zone()) HOptimizedGraphBuilderWithPositions(info()) | 471 ? new(info()->zone()) HOptimizedGraphBuilderWithPositions(info()) |
472 : new(info()->zone()) HOptimizedGraphBuilder(info()); | 472 : new(info()->zone()) HOptimizedGraphBuilder(info()); |
473 | 473 |
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1093 info->SetOptimizing(BailoutId::None()); | 1093 info->SetOptimizing(BailoutId::None()); |
1094 } | 1094 } |
1095 | 1095 |
1096 VMState<COMPILER> state(isolate); | 1096 VMState<COMPILER> state(isolate); |
1097 PostponeInterruptsScope postpone(isolate); | 1097 PostponeInterruptsScope postpone(isolate); |
1098 | 1098 |
1099 int compiled_size = shared->end_position() - shared->start_position(); | 1099 int compiled_size = shared->end_position() - shared->start_position(); |
1100 isolate->counters()->total_compile_size()->Increment(compiled_size); | 1100 isolate->counters()->total_compile_size()->Increment(compiled_size); |
1101 | 1101 |
1102 { | 1102 { |
1103 CompilationHandleScope handle_scope(*info); | 1103 CompilationHandleScope handle_scope(info.get()); |
1104 | 1104 |
1105 if (!compiling_for_osr && InstallCodeFromOptimizedCodeMap(*info)) { | 1105 if (!compiling_for_osr && InstallCodeFromOptimizedCodeMap(info.get())) { |
1106 return true; | 1106 return true; |
1107 } | 1107 } |
1108 | 1108 |
1109 if (Parser::Parse(*info)) { | 1109 if (Parser::Parse(info.get())) { |
1110 LanguageMode language_mode = info->function()->language_mode(); | 1110 LanguageMode language_mode = info->function()->language_mode(); |
1111 info->SetLanguageMode(language_mode); | 1111 info->SetLanguageMode(language_mode); |
1112 shared->set_language_mode(language_mode); | 1112 shared->set_language_mode(language_mode); |
1113 info->SaveHandles(); | 1113 info->SaveHandles(); |
1114 | 1114 |
1115 if (Rewriter::Rewrite(*info) && Scope::Analyze(*info)) { | 1115 if (Rewriter::Rewrite(info.get()) && Scope::Analyze(info.get())) { |
1116 RecompileJob* job = new(info->zone()) RecompileJob(*info); | 1116 RecompileJob* job = new(info->zone()) RecompileJob(info.get()); |
1117 RecompileJob::Status status = job->CreateGraph(); | 1117 RecompileJob::Status status = job->CreateGraph(); |
1118 if (status == RecompileJob::SUCCEEDED) { | 1118 if (status == RecompileJob::SUCCEEDED) { |
1119 info.Detach(); | 1119 info.Detach(); |
1120 shared->code()->set_profiler_ticks(0); | 1120 shared->code()->set_profiler_ticks(0); |
1121 isolate->optimizing_compiler_thread()->QueueForOptimization(job); | 1121 isolate->optimizing_compiler_thread()->QueueForOptimization(job); |
1122 ASSERT(!isolate->has_pending_exception()); | 1122 ASSERT(!isolate->has_pending_exception()); |
1123 return true; | 1123 return true; |
1124 } else if (status == RecompileJob::BAILED_OUT) { | 1124 } else if (status == RecompileJob::BAILED_OUT) { |
1125 isolate->clear_pending_exception(); | 1125 isolate->clear_pending_exception(); |
1126 InstallFullCode(*info); | 1126 InstallFullCode(info.get()); |
1127 } | 1127 } |
1128 } | 1128 } |
1129 } | 1129 } |
1130 } | 1130 } |
1131 | 1131 |
1132 if (isolate->has_pending_exception()) isolate->clear_pending_exception(); | 1132 if (isolate->has_pending_exception()) isolate->clear_pending_exception(); |
1133 return false; | 1133 return false; |
1134 } | 1134 } |
1135 | 1135 |
1136 | 1136 |
1137 Handle<Code> Compiler::InstallOptimizedCode(RecompileJob* job) { | 1137 Handle<Code> Compiler::InstallOptimizedCode(RecompileJob* job) { |
1138 SmartPointer<CompilationInfo> info(job->info()); | 1138 SmartPointer<CompilationInfo> info(job->info()); |
1139 // The function may have already been optimized by OSR. Simply continue. | 1139 // The function may have already been optimized by OSR. Simply continue. |
1140 // Except when OSR already disabled optimization for some reason. | 1140 // Except when OSR already disabled optimization for some reason. |
1141 if (info->shared_info()->optimization_disabled()) { | 1141 if (info->shared_info()->optimization_disabled()) { |
1142 info->AbortOptimization(); | 1142 info->AbortOptimization(); |
1143 InstallFullCode(*info); | 1143 InstallFullCode(info.get()); |
1144 if (FLAG_trace_concurrent_recompilation) { | 1144 if (FLAG_trace_concurrent_recompilation) { |
1145 PrintF(" ** aborting optimization for "); | 1145 PrintF(" ** aborting optimization for "); |
1146 info->closure()->PrintName(); | 1146 info->closure()->PrintName(); |
1147 PrintF(" as it has been disabled.\n"); | 1147 PrintF(" as it has been disabled.\n"); |
1148 } | 1148 } |
1149 ASSERT(!info->closure()->IsInRecompileQueue()); | 1149 ASSERT(!info->closure()->IsInRecompileQueue()); |
1150 return Handle<Code>::null(); | 1150 return Handle<Code>::null(); |
1151 } | 1151 } |
1152 | 1152 |
1153 Isolate* isolate = info->isolate(); | 1153 Isolate* isolate = info->isolate(); |
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1165 status = job->AbortOptimization(); | 1165 status = job->AbortOptimization(); |
1166 } else if (isolate->DebuggerHasBreakPoints()) { | 1166 } else if (isolate->DebuggerHasBreakPoints()) { |
1167 info->set_bailout_reason(kDebuggerIsActive); | 1167 info->set_bailout_reason(kDebuggerIsActive); |
1168 status = job->AbortOptimization(); | 1168 status = job->AbortOptimization(); |
1169 } else { | 1169 } else { |
1170 status = job->GenerateAndInstallCode(); | 1170 status = job->GenerateAndInstallCode(); |
1171 ASSERT(status == RecompileJob::SUCCEEDED || | 1171 ASSERT(status == RecompileJob::SUCCEEDED || |
1172 status == RecompileJob::BAILED_OUT); | 1172 status == RecompileJob::BAILED_OUT); |
1173 } | 1173 } |
1174 | 1174 |
1175 InstallCodeCommon(*info); | 1175 InstallCodeCommon(info.get()); |
1176 if (status == RecompileJob::SUCCEEDED) { | 1176 if (status == RecompileJob::SUCCEEDED) { |
1177 Handle<Code> code = info->code(); | 1177 Handle<Code> code = info->code(); |
1178 ASSERT(info->shared_info()->scope_info() != ScopeInfo::Empty(isolate)); | 1178 ASSERT(info->shared_info()->scope_info() != ScopeInfo::Empty(isolate)); |
1179 info->closure()->ReplaceCode(*code); | 1179 info->closure()->ReplaceCode(*code); |
1180 if (info->shared_info()->SearchOptimizedCodeMap( | 1180 if (info->shared_info()->SearchOptimizedCodeMap( |
1181 info->closure()->context()->native_context()) == -1) { | 1181 info->closure()->context()->native_context()) == -1) { |
1182 InsertCodeIntoOptimizedCodeMap(*info); | 1182 InsertCodeIntoOptimizedCodeMap(info.get()); |
1183 } | 1183 } |
1184 if (FLAG_trace_concurrent_recompilation) { | 1184 if (FLAG_trace_concurrent_recompilation) { |
1185 PrintF(" ** Optimized code for "); | 1185 PrintF(" ** Optimized code for "); |
1186 info->closure()->PrintName(); | 1186 info->closure()->PrintName(); |
1187 PrintF(" installed.\n"); | 1187 PrintF(" installed.\n"); |
1188 } | 1188 } |
1189 } else { | 1189 } else { |
1190 info->AbortOptimization(); | 1190 info->AbortOptimization(); |
1191 InstallFullCode(*info); | 1191 InstallFullCode(info.get()); |
1192 } | 1192 } |
1193 // Optimized code is finally replacing unoptimized code. Reset the latter's | 1193 // Optimized code is finally replacing unoptimized code. Reset the latter's |
1194 // profiler ticks to prevent too soon re-opt after a deopt. | 1194 // profiler ticks to prevent too soon re-opt after a deopt. |
1195 info->shared_info()->code()->set_profiler_ticks(0); | 1195 info->shared_info()->code()->set_profiler_ticks(0); |
1196 ASSERT(!info->closure()->IsInRecompileQueue()); | 1196 ASSERT(!info->closure()->IsInRecompileQueue()); |
1197 return (status == RecompileJob::SUCCEEDED) ? info->code() | 1197 return (status == RecompileJob::SUCCEEDED) ? info->code() |
1198 : Handle<Code>::null(); | 1198 : Handle<Code>::null(); |
1199 } | 1199 } |
1200 | 1200 |
1201 | 1201 |
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1361 AllowHandleDereference allow_deref; | 1361 AllowHandleDereference allow_deref; |
1362 bool tracing_on = info()->IsStub() | 1362 bool tracing_on = info()->IsStub() |
1363 ? FLAG_trace_hydrogen_stubs | 1363 ? FLAG_trace_hydrogen_stubs |
1364 : (FLAG_trace_hydrogen && | 1364 : (FLAG_trace_hydrogen && |
1365 info()->closure()->PassesFilter(FLAG_trace_hydrogen_filter)); | 1365 info()->closure()->PassesFilter(FLAG_trace_hydrogen_filter)); |
1366 return (tracing_on && | 1366 return (tracing_on && |
1367 OS::StrChr(const_cast<char*>(FLAG_trace_phase), name_[0]) != NULL); | 1367 OS::StrChr(const_cast<char*>(FLAG_trace_phase), name_[0]) != NULL); |
1368 } | 1368 } |
1369 | 1369 |
1370 } } // namespace v8::internal | 1370 } } // namespace v8::internal |
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