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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 // 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 "v8.h" | 5 #include "v8.h" |
6 | 6 |
7 #if V8_TARGET_ARCH_IA32 | 7 #if V8_TARGET_ARCH_IA32 |
8 | 8 |
9 #include "lithium-allocator-inl.h" | 9 #include "lithium-allocator-inl.h" |
10 #include "ia32/lithium-ia32.h" | 10 #include "ia32/lithium-ia32.h" |
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2020 // want the value in a register. If the object gets promoted before we | 2020 // want the value in a register. If the object gets promoted before we |
2021 // emit code, we will still get the register but will do an immediate | 2021 // emit code, we will still get the register but will do an immediate |
2022 // compare instead of the cell compare. This is safe. | 2022 // compare instead of the cell compare. This is safe. |
2023 LOperand* value = instr->object_in_new_space() | 2023 LOperand* value = instr->object_in_new_space() |
2024 ? UseRegisterAtStart(instr->value()) : UseAtStart(instr->value()); | 2024 ? UseRegisterAtStart(instr->value()) : UseAtStart(instr->value()); |
2025 return AssignEnvironment(new(zone()) LCheckValue(value)); | 2025 return AssignEnvironment(new(zone()) LCheckValue(value)); |
2026 } | 2026 } |
2027 | 2027 |
2028 | 2028 |
2029 LInstruction* LChunkBuilder::DoCheckMaps(HCheckMaps* instr) { | 2029 LInstruction* LChunkBuilder::DoCheckMaps(HCheckMaps* instr) { |
2030 LOperand* value = NULL; | 2030 if (instr->IsStabilityCheck()) return new(zone()) LCheckMaps; |
2031 if (!instr->CanOmitMapChecks()) { | 2031 LOperand* value = UseRegisterAtStart(instr->value()); |
2032 value = UseRegisterAtStart(instr->value()); | 2032 LInstruction* result = AssignEnvironment(new(zone()) LCheckMaps(value)); |
2033 if (instr->has_migration_target()) info()->MarkAsDeferredCalling(); | 2033 if (instr->HasMigrationTarget()) { |
2034 } | 2034 info()->MarkAsDeferredCalling(); |
2035 LInstruction* result = new(zone()) LCheckMaps(value); | 2035 result = AssignPointerMap(result); |
2036 if (!instr->CanOmitMapChecks()) { | |
2037 result = AssignEnvironment(result); | |
2038 if (instr->has_migration_target()) result = AssignPointerMap(result); | |
2039 } | 2036 } |
2040 return result; | 2037 return result; |
2041 } | 2038 } |
2042 | 2039 |
2043 | 2040 |
2044 LInstruction* LChunkBuilder::DoClampToUint8(HClampToUint8* instr) { | 2041 LInstruction* LChunkBuilder::DoClampToUint8(HClampToUint8* instr) { |
2045 HValue* value = instr->value(); | 2042 HValue* value = instr->value(); |
2046 Representation input_rep = value->representation(); | 2043 Representation input_rep = value->representation(); |
2047 if (input_rep.IsDouble()) { | 2044 if (input_rep.IsDouble()) { |
2048 LOperand* reg = UseRegister(value); | 2045 LOperand* reg = UseRegister(value); |
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2700 LOperand* index = UseTempRegister(instr->index()); | 2697 LOperand* index = UseTempRegister(instr->index()); |
2701 LLoadFieldByIndex* load = new(zone()) LLoadFieldByIndex(object, index); | 2698 LLoadFieldByIndex* load = new(zone()) LLoadFieldByIndex(object, index); |
2702 LInstruction* result = DefineSameAsFirst(load); | 2699 LInstruction* result = DefineSameAsFirst(load); |
2703 return AssignPointerMap(result); | 2700 return AssignPointerMap(result); |
2704 } | 2701 } |
2705 | 2702 |
2706 | 2703 |
2707 } } // namespace v8::internal | 2704 } } // namespace v8::internal |
2708 | 2705 |
2709 #endif // V8_TARGET_ARCH_IA32 | 2706 #endif // V8_TARGET_ARCH_IA32 |
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