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1 // Copyright 2014 the V8 project authors. All rights reserved. | 1 // Copyright 2014 the V8 project authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "src/crankshaft/ppc/lithium-ppc.h" | 5 #include "src/crankshaft/ppc/lithium-ppc.h" |
6 | 6 |
7 #include <sstream> | 7 #include <sstream> |
8 | 8 |
9 #include "src/crankshaft/hydrogen-osr.h" | 9 #include "src/crankshaft/hydrogen-osr.h" |
10 #include "src/crankshaft/lithium-inl.h" | 10 #include "src/crankshaft/lithium-inl.h" |
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552 | 552 |
553 | 553 |
554 LInstruction* LChunkBuilder::DefineFixedDouble( | 554 LInstruction* LChunkBuilder::DefineFixedDouble( |
555 LTemplateResultInstruction<1>* instr, DoubleRegister reg) { | 555 LTemplateResultInstruction<1>* instr, DoubleRegister reg) { |
556 return Define(instr, ToUnallocated(reg)); | 556 return Define(instr, ToUnallocated(reg)); |
557 } | 557 } |
558 | 558 |
559 | 559 |
560 LInstruction* LChunkBuilder::AssignEnvironment(LInstruction* instr) { | 560 LInstruction* LChunkBuilder::AssignEnvironment(LInstruction* instr) { |
561 HEnvironment* hydrogen_env = current_block_->last_environment(); | 561 HEnvironment* hydrogen_env = current_block_->last_environment(); |
562 int argument_index_accumulator = 0; | 562 return LChunkBuilderBase::AssignEnvironment(instr, hydrogen_env); |
563 ZoneList<HValue*> objects_to_materialize(0, zone()); | |
564 instr->set_environment(CreateEnvironment( | |
565 hydrogen_env, &argument_index_accumulator, &objects_to_materialize)); | |
566 return instr; | |
567 } | 563 } |
568 | 564 |
569 | 565 |
570 LInstruction* LChunkBuilder::MarkAsCall(LInstruction* instr, | 566 LInstruction* LChunkBuilder::MarkAsCall(LInstruction* instr, |
571 HInstruction* hinstr, | 567 HInstruction* hinstr, |
572 CanDeoptimize can_deoptimize) { | 568 CanDeoptimize can_deoptimize) { |
573 info()->MarkAsNonDeferredCalling(); | 569 info()->MarkAsNonDeferredCalling(); |
574 #ifdef DEBUG | 570 #ifdef DEBUG |
575 instr->VerifyCall(); | 571 instr->VerifyCall(); |
576 #endif | 572 #endif |
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884 | 880 |
885 if (FLAG_stress_pointer_maps && !instr->HasPointerMap()) { | 881 if (FLAG_stress_pointer_maps && !instr->HasPointerMap()) { |
886 instr = AssignPointerMap(instr); | 882 instr = AssignPointerMap(instr); |
887 } | 883 } |
888 if (FLAG_stress_environments && !instr->HasEnvironment()) { | 884 if (FLAG_stress_environments && !instr->HasEnvironment()) { |
889 instr = AssignEnvironment(instr); | 885 instr = AssignEnvironment(instr); |
890 } | 886 } |
891 chunk_->AddInstruction(instr, current_block_); | 887 chunk_->AddInstruction(instr, current_block_); |
892 | 888 |
893 if (instr->IsCall()) { | 889 if (instr->IsCall()) { |
| 890 HEnvironment* hydrogen_env = current_block_->last_environment(); |
894 HValue* hydrogen_value_for_lazy_bailout = hydrogen_val; | 891 HValue* hydrogen_value_for_lazy_bailout = hydrogen_val; |
895 if (hydrogen_val->HasObservableSideEffects()) { | 892 DCHECK_NOT_NULL(hydrogen_env); |
896 HSimulate* sim = HSimulate::cast(hydrogen_val->next()); | 893 if (instr->IsSyntacticTailCall()) { |
897 sim->ReplayEnvironment(current_block_->last_environment()); | 894 // If it was a syntactic tail call we need to drop the current frame and |
898 hydrogen_value_for_lazy_bailout = sim; | 895 // an arguments adaptor frame on top of it (if the latter is present). |
| 896 hydrogen_env = hydrogen_env->outer(); |
| 897 if (hydrogen_env != nullptr && |
| 898 hydrogen_env->frame_type() == ARGUMENTS_ADAPTOR) { |
| 899 hydrogen_env = hydrogen_env->outer(); |
| 900 } |
| 901 if (hydrogen_env != nullptr) { |
| 902 // Push return value on top of outer environment. |
| 903 hydrogen_env = hydrogen_env->Copy(); |
| 904 hydrogen_env->Push(hydrogen_val); |
| 905 } else { |
| 906 // Although we don't need this lazy bailout for normal execution |
| 907 // (because when we tail call from the outermost function we should pop |
| 908 // its frame) we still need it when debugger is on. |
| 909 hydrogen_env = current_block_->last_environment(); |
| 910 } |
| 911 } else { |
| 912 if (hydrogen_val->HasObservableSideEffects()) { |
| 913 HSimulate* sim = HSimulate::cast(hydrogen_val->next()); |
| 914 sim->ReplayEnvironment(hydrogen_env); |
| 915 hydrogen_value_for_lazy_bailout = sim; |
| 916 } |
899 } | 917 } |
900 LInstruction* bailout = AssignEnvironment(new (zone()) LLazyBailout()); | 918 LInstruction* bailout = LChunkBuilderBase::AssignEnvironment( |
| 919 new (zone()) LLazyBailout(), hydrogen_env); |
901 bailout->set_hydrogen_value(hydrogen_value_for_lazy_bailout); | 920 bailout->set_hydrogen_value(hydrogen_value_for_lazy_bailout); |
902 chunk_->AddInstruction(bailout, current_block_); | 921 chunk_->AddInstruction(bailout, current_block_); |
903 } | 922 } |
904 } | 923 } |
905 | 924 |
906 | 925 |
907 LInstruction* LChunkBuilder::DoPrologue(HPrologue* instr) { | 926 LInstruction* LChunkBuilder::DoPrologue(HPrologue* instr) { |
908 LInstruction* result = new (zone()) LPrologue(); | 927 LInstruction* result = new (zone()) LPrologue(); |
909 if (info_->num_heap_slots() > 0) { | 928 if (info_->num_heap_slots() > 0) { |
910 result = MarkAsCall(result, instr); | 929 result = MarkAsCall(result, instr); |
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1068 i < instr->OperandCount(); i++) { | 1087 i < instr->OperandCount(); i++) { |
1069 op = | 1088 op = |
1070 UseFixed(instr->OperandAt(i), | 1089 UseFixed(instr->OperandAt(i), |
1071 descriptor.GetRegisterParameter( | 1090 descriptor.GetRegisterParameter( |
1072 i - LCallWithDescriptor::kImplicitRegisterParameterCount)); | 1091 i - LCallWithDescriptor::kImplicitRegisterParameterCount)); |
1073 ops.Add(op, zone()); | 1092 ops.Add(op, zone()); |
1074 } | 1093 } |
1075 | 1094 |
1076 LCallWithDescriptor* result = | 1095 LCallWithDescriptor* result = |
1077 new (zone()) LCallWithDescriptor(descriptor, ops, zone()); | 1096 new (zone()) LCallWithDescriptor(descriptor, ops, zone()); |
| 1097 if (instr->syntactic_tail_call_mode() == TailCallMode::kAllow) { |
| 1098 result->MarkAsSyntacticTailCall(); |
| 1099 } |
1078 return MarkAsCall(DefineFixed(result, r3), instr); | 1100 return MarkAsCall(DefineFixed(result, r3), instr); |
1079 } | 1101 } |
1080 | 1102 |
1081 | 1103 |
1082 LInstruction* LChunkBuilder::DoInvokeFunction(HInvokeFunction* instr) { | 1104 LInstruction* LChunkBuilder::DoInvokeFunction(HInvokeFunction* instr) { |
1083 LOperand* context = UseFixed(instr->context(), cp); | 1105 LOperand* context = UseFixed(instr->context(), cp); |
1084 LOperand* function = UseFixed(instr->function(), r4); | 1106 LOperand* function = UseFixed(instr->function(), r4); |
1085 LInvokeFunction* result = new (zone()) LInvokeFunction(context, function); | 1107 LInvokeFunction* result = new (zone()) LInvokeFunction(context, function); |
| 1108 if (instr->syntactic_tail_call_mode() == TailCallMode::kAllow) { |
| 1109 result->MarkAsSyntacticTailCall(); |
| 1110 } |
1086 return MarkAsCall(DefineFixed(result, r3), instr, CANNOT_DEOPTIMIZE_EAGERLY); | 1111 return MarkAsCall(DefineFixed(result, r3), instr, CANNOT_DEOPTIMIZE_EAGERLY); |
1087 } | 1112 } |
1088 | 1113 |
1089 | 1114 |
1090 LInstruction* LChunkBuilder::DoUnaryMathOperation(HUnaryMathOperation* instr) { | 1115 LInstruction* LChunkBuilder::DoUnaryMathOperation(HUnaryMathOperation* instr) { |
1091 switch (instr->op()) { | 1116 switch (instr->op()) { |
1092 case kMathFloor: | 1117 case kMathFloor: |
1093 return DoMathFloor(instr); | 1118 return DoMathFloor(instr); |
1094 case kMathRound: | 1119 case kMathRound: |
1095 return DoMathRound(instr); | 1120 return DoMathRound(instr); |
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2493 } | 2518 } |
2494 | 2519 |
2495 | 2520 |
2496 LInstruction* LChunkBuilder::DoStoreFrameContext(HStoreFrameContext* instr) { | 2521 LInstruction* LChunkBuilder::DoStoreFrameContext(HStoreFrameContext* instr) { |
2497 LOperand* context = UseRegisterAtStart(instr->context()); | 2522 LOperand* context = UseRegisterAtStart(instr->context()); |
2498 return new (zone()) LStoreFrameContext(context); | 2523 return new (zone()) LStoreFrameContext(context); |
2499 } | 2524 } |
2500 | 2525 |
2501 } // namespace internal | 2526 } // namespace internal |
2502 } // namespace v8 | 2527 } // namespace v8 |
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