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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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983 LEnvironment* LChunkBuilder::CreateEnvironment( | 983 LEnvironment* LChunkBuilder::CreateEnvironment( |
984 HEnvironment* hydrogen_env, | 984 HEnvironment* hydrogen_env, |
985 int* argument_index_accumulator) { | 985 int* argument_index_accumulator) { |
986 if (hydrogen_env == NULL) return NULL; | 986 if (hydrogen_env == NULL) return NULL; |
987 | 987 |
988 LEnvironment* outer = | 988 LEnvironment* outer = |
989 CreateEnvironment(hydrogen_env->outer(), argument_index_accumulator); | 989 CreateEnvironment(hydrogen_env->outer(), argument_index_accumulator); |
990 BailoutId ast_id = hydrogen_env->ast_id(); | 990 BailoutId ast_id = hydrogen_env->ast_id(); |
991 ASSERT(!ast_id.IsNone() || | 991 ASSERT(!ast_id.IsNone() || |
992 hydrogen_env->frame_type() != JS_FUNCTION); | 992 hydrogen_env->frame_type() != JS_FUNCTION); |
993 int value_count = hydrogen_env->length() - hydrogen_env->specials_count(); | 993 int value_count = hydrogen_env->length(); |
994 LEnvironment* result = | 994 LEnvironment* result = |
995 new(zone()) LEnvironment(hydrogen_env->closure(), | 995 new(zone()) LEnvironment(hydrogen_env->closure(), |
996 hydrogen_env->frame_type(), | 996 hydrogen_env->frame_type(), |
997 ast_id, | 997 ast_id, |
998 hydrogen_env->parameter_count(), | 998 hydrogen_env->parameter_count(), |
999 argument_count_, | 999 argument_count_, |
1000 value_count, | 1000 value_count, |
1001 outer, | 1001 outer, |
1002 hydrogen_env->entry(), | 1002 hydrogen_env->entry(), |
1003 zone()); | 1003 zone()); |
1004 bool needs_arguments_object_materialization = false; | |
1005 int argument_index = *argument_index_accumulator; | 1004 int argument_index = *argument_index_accumulator; |
1006 for (int i = 0; i < hydrogen_env->length(); ++i) { | 1005 for (int i = 0; i < value_count; ++i) { |
1007 if (hydrogen_env->is_special_index(i)) continue; | 1006 if (hydrogen_env->is_special_index(i)) continue; |
1008 | 1007 |
1009 HValue* value = hydrogen_env->values()->at(i); | 1008 HValue* value = hydrogen_env->values()->at(i); |
1010 LOperand* op = NULL; | 1009 LOperand* op = NULL; |
1011 if (value->IsArgumentsObject()) { | 1010 if (value->IsArgumentsObject()) { |
1012 needs_arguments_object_materialization = true; | |
1013 op = NULL; | 1011 op = NULL; |
1014 } else if (value->IsPushArgument()) { | 1012 } else if (value->IsPushArgument()) { |
1015 op = new(zone()) LArgument(argument_index++); | 1013 op = new(zone()) LArgument(argument_index++); |
1016 } else { | 1014 } else { |
1017 op = UseAny(value); | 1015 op = UseAny(value); |
1018 } | 1016 } |
1019 result->AddValue(op, | 1017 result->AddValue(op, |
1020 value->representation(), | 1018 value->representation(), |
1021 value->CheckFlag(HInstruction::kUint32)); | 1019 value->CheckFlag(HInstruction::kUint32)); |
1022 } | 1020 } |
1023 | 1021 |
1024 if (needs_arguments_object_materialization) { | |
1025 HArgumentsObject* arguments = hydrogen_env->entry() == NULL | |
1026 ? graph()->GetArgumentsObject() | |
1027 : hydrogen_env->entry()->arguments_object(); | |
1028 ASSERT(arguments->IsLinked()); | |
1029 for (int i = 1; i < arguments->arguments_count(); ++i) { | |
1030 HValue* value = arguments->arguments_values()->at(i); | |
1031 ASSERT(!value->IsArgumentsObject() && !value->IsPushArgument()); | |
1032 LOperand* op = UseAny(value); | |
1033 result->AddValue(op, | |
1034 value->representation(), | |
1035 value->CheckFlag(HInstruction::kUint32)); | |
1036 } | |
1037 } | |
1038 | |
1039 if (hydrogen_env->frame_type() == JS_FUNCTION) { | 1022 if (hydrogen_env->frame_type() == JS_FUNCTION) { |
1040 *argument_index_accumulator = argument_index; | 1023 *argument_index_accumulator = argument_index; |
1041 } | 1024 } |
1042 | 1025 |
1043 return result; | 1026 return result; |
1044 } | 1027 } |
1045 | 1028 |
1046 | 1029 |
1047 LInstruction* LChunkBuilder::DoGoto(HGoto* instr) { | 1030 LInstruction* LChunkBuilder::DoGoto(HGoto* instr) { |
1048 return new(zone()) LGoto(instr->FirstSuccessor()->block_id()); | 1031 return new(zone()) LGoto(instr->FirstSuccessor()->block_id()); |
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2809 LInstruction* LChunkBuilder::DoLoadFieldByIndex(HLoadFieldByIndex* instr) { | 2792 LInstruction* LChunkBuilder::DoLoadFieldByIndex(HLoadFieldByIndex* instr) { |
2810 LOperand* object = UseRegister(instr->object()); | 2793 LOperand* object = UseRegister(instr->object()); |
2811 LOperand* index = UseTempRegister(instr->index()); | 2794 LOperand* index = UseTempRegister(instr->index()); |
2812 return DefineSameAsFirst(new(zone()) LLoadFieldByIndex(object, index)); | 2795 return DefineSameAsFirst(new(zone()) LLoadFieldByIndex(object, index)); |
2813 } | 2796 } |
2814 | 2797 |
2815 | 2798 |
2816 } } // namespace v8::internal | 2799 } } // namespace v8::internal |
2817 | 2800 |
2818 #endif // V8_TARGET_ARCH_IA32 | 2801 #endif // V8_TARGET_ARCH_IA32 |
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