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1 // Copyright 2013 the V8 project authors. All rights reserved. | 1 // Copyright 2013 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_X64 | 7 #if V8_TARGET_ARCH_X64 |
8 | 8 |
9 #include "x64/lithium-codegen-x64.h" | 9 #include "x64/lithium-codegen-x64.h" |
10 #include "code-stubs.h" | 10 #include "code-stubs.h" |
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4014 Register value = ToRegister(instr->value()); | 4014 Register value = ToRegister(instr->value()); |
4015 Condition cc = masm()->CheckSmi(value); | 4015 Condition cc = masm()->CheckSmi(value); |
4016 DeoptimizeIf(cc, instr->environment()); | 4016 DeoptimizeIf(cc, instr->environment()); |
4017 | 4017 |
4018 // We know now that value is not a smi, so we can omit the check below. | 4018 // We know now that value is not a smi, so we can omit the check below. |
4019 check_needed = OMIT_SMI_CHECK; | 4019 check_needed = OMIT_SMI_CHECK; |
4020 } | 4020 } |
4021 } | 4021 } |
4022 } else if (representation.IsDouble()) { | 4022 } else if (representation.IsDouble()) { |
4023 ASSERT(access.IsInobject()); | 4023 ASSERT(access.IsInobject()); |
4024 ASSERT(!hinstr->has_transition()); | |
4025 ASSERT(!hinstr->NeedsWriteBarrier()); | 4024 ASSERT(!hinstr->NeedsWriteBarrier()); |
4026 XMMRegister value = ToDoubleRegister(instr->value()); | 4025 XMMRegister value = ToDoubleRegister(instr->value()); |
4027 __ movsd(FieldOperand(object, offset), value); | 4026 __ movsd(FieldOperand(object, offset), value); |
4028 return; | 4027 return; |
4029 } | 4028 } |
4030 | 4029 |
4031 if (hinstr->has_transition()) { | |
4032 Handle<Map> transition = hinstr->transition_map(); | |
4033 AddDeprecationDependency(transition); | |
4034 if (!hinstr->NeedsWriteBarrierForMap()) { | |
4035 __ Move(FieldOperand(object, HeapObject::kMapOffset), transition); | |
4036 } else { | |
4037 Register temp = ToRegister(instr->temp()); | |
4038 __ Move(kScratchRegister, transition); | |
4039 __ movp(FieldOperand(object, HeapObject::kMapOffset), kScratchRegister); | |
4040 // Update the write barrier for the map field. | |
4041 __ RecordWriteField(object, | |
4042 HeapObject::kMapOffset, | |
4043 kScratchRegister, | |
4044 temp, | |
4045 kSaveFPRegs, | |
4046 OMIT_REMEMBERED_SET, | |
4047 OMIT_SMI_CHECK); | |
4048 } | |
4049 } | |
4050 | |
4051 // Do the store. | 4030 // Do the store. |
4052 Register write_register = object; | 4031 Register write_register = object; |
4053 if (!access.IsInobject()) { | 4032 if (!access.IsInobject()) { |
4054 write_register = ToRegister(instr->temp()); | 4033 write_register = ToRegister(instr->temp()); |
4055 __ movp(write_register, FieldOperand(object, JSObject::kPropertiesOffset)); | 4034 __ movp(write_register, FieldOperand(object, JSObject::kPropertiesOffset)); |
4056 } | 4035 } |
4057 | 4036 |
4058 if (representation.IsSmi() && SmiValuesAre32Bits() && | 4037 if (representation.IsSmi() && SmiValuesAre32Bits() && |
4059 hinstr->value()->representation().IsInteger32()) { | 4038 hinstr->value()->representation().IsInteger32()) { |
4060 ASSERT(hinstr->store_mode() == STORE_TO_INITIALIZED_ENTRY); | 4039 ASSERT(hinstr->store_mode() == STORE_TO_INITIALIZED_ENTRY); |
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5720 __ bind(deferred->exit()); | 5699 __ bind(deferred->exit()); |
5721 __ bind(&done); | 5700 __ bind(&done); |
5722 } | 5701 } |
5723 | 5702 |
5724 | 5703 |
5725 #undef __ | 5704 #undef __ |
5726 | 5705 |
5727 } } // namespace v8::internal | 5706 } } // namespace v8::internal |
5728 | 5707 |
5729 #endif // V8_TARGET_ARCH_X64 | 5708 #endif // V8_TARGET_ARCH_X64 |
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