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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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1685 } | 1685 } |
1686 | 1686 |
1687 | 1687 |
1688 void LCodeGen::DoConstantE(LConstantE* instr) { | 1688 void LCodeGen::DoConstantE(LConstantE* instr) { |
1689 __ LoadAddress(ToRegister(instr->result()), instr->value()); | 1689 __ LoadAddress(ToRegister(instr->result()), instr->value()); |
1690 } | 1690 } |
1691 | 1691 |
1692 | 1692 |
1693 void LCodeGen::DoConstantT(LConstantT* instr) { | 1693 void LCodeGen::DoConstantT(LConstantT* instr) { |
1694 Handle<Object> object = instr->value(isolate()); | 1694 Handle<Object> object = instr->value(isolate()); |
| 1695 AllowDeferredHandleDereference smi_check; |
1695 if (instr->hydrogen()->HasObjectMap()) { | 1696 if (instr->hydrogen()->HasObjectMap()) { |
1696 Handle<Map> object_map = instr->hydrogen()->ObjectMap().handle(); | 1697 Handle<Map> object_map = instr->hydrogen()->ObjectMap().handle(); |
1697 CHECK(object->IsHeapObject()); | 1698 CHECK(object->IsHeapObject()); |
1698 CHECK(!object_map->is_stable() || | 1699 CHECK(!object_map->is_stable() || |
1699 *object_map == Handle<HeapObject>::cast(object)->map()); | 1700 *object_map == Handle<HeapObject>::cast(object)->map()); |
1700 } | 1701 } |
1701 __ Move(ToRegister(instr->result()), object); | 1702 __ Move(ToRegister(instr->result()), object); |
1702 } | 1703 } |
1703 | 1704 |
1704 | 1705 |
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5710 __ bind(deferred->exit()); | 5711 __ bind(deferred->exit()); |
5711 __ bind(&done); | 5712 __ bind(&done); |
5712 } | 5713 } |
5713 | 5714 |
5714 | 5715 |
5715 #undef __ | 5716 #undef __ |
5716 | 5717 |
5717 } } // namespace v8::internal | 5718 } } // namespace v8::internal |
5718 | 5719 |
5719 #endif // V8_TARGET_ARCH_X64 | 5720 #endif // V8_TARGET_ARCH_X64 |
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