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1 // Copyright (c) 2011, the Dart project authors. Please see the AUTHORS file | 1 // Copyright (c) 2011, the Dart project authors. Please see the AUTHORS file |
2 // for details. All rights reserved. Use of this source code is governed by a | 2 // for details. All rights reserved. Use of this source code is governed by a |
3 // BSD-style license that can be found in the LICENSE file. | 3 // BSD-style license that can be found in the LICENSE file. |
4 | 4 |
5 #include "vm/globals.h" | 5 #include "vm/globals.h" |
6 #if defined(TARGET_ARCH_X64) | 6 #if defined(TARGET_ARCH_X64) |
7 | 7 |
8 #include "vm/assembler_macros.h" | 8 #include "vm/assembler_macros.h" |
9 | 9 |
10 #include "vm/assembler.h" | 10 #include "vm/assembler.h" |
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32 __ cmpq(instance_reg, Address(TMP, 0)); | 32 __ cmpq(instance_reg, Address(TMP, 0)); |
33 __ j(ABOVE_EQUAL, failure, Assembler::kNearJump); | 33 __ j(ABOVE_EQUAL, failure, Assembler::kNearJump); |
34 // Successfully allocated the object, now update top to point to | 34 // Successfully allocated the object, now update top to point to |
35 // next object start and store the class in the class field of object. | 35 // next object start and store the class in the class field of object. |
36 __ movq(TMP, Immediate(heap->TopAddress())); | 36 __ movq(TMP, Immediate(heap->TopAddress())); |
37 __ movq(Address(TMP, 0), instance_reg); | 37 __ movq(Address(TMP, 0), instance_reg); |
38 ASSERT(instance_size >= kHeapObjectTag); | 38 ASSERT(instance_size >= kHeapObjectTag); |
39 __ subq(instance_reg, Immediate(instance_size - kHeapObjectTag)); | 39 __ subq(instance_reg, Immediate(instance_size - kHeapObjectTag)); |
40 uword tags = 0; | 40 uword tags = 0; |
41 tags = RawObject::SizeTag::update(instance_size, tags); | 41 tags = RawObject::SizeTag::update(instance_size, tags); |
42 ASSERT(cls.id() != kIllegalObjectKind); | 42 ASSERT(cls.id() != kIllegalCid); |
43 tags = RawObject::ClassIdTag::update(cls.id(), tags); | 43 tags = RawObject::ClassIdTag::update(cls.id(), tags); |
44 __ movq(FieldAddress(instance_reg, Object::tags_offset()), Immediate(tags)); | 44 __ movq(FieldAddress(instance_reg, Object::tags_offset()), Immediate(tags)); |
45 } else { | 45 } else { |
46 __ jmp(failure); | 46 __ jmp(failure); |
47 } | 47 } |
48 } | 48 } |
49 | 49 |
50 | 50 |
51 void AssemblerMacros::EnterDartFrame(Assembler* assembler, | 51 void AssemblerMacros::EnterDartFrame(Assembler* assembler, |
52 intptr_t frame_size) { | 52 intptr_t frame_size) { |
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83 void AssemblerMacros::EnterStubFrame(Assembler* assembler) { | 83 void AssemblerMacros::EnterStubFrame(Assembler* assembler) { |
84 __ EnterFrame(0); | 84 __ EnterFrame(0); |
85 __ pushq(Immediate(0)); // Push 0 in the saved PC area for stub frames. | 85 __ pushq(Immediate(0)); // Push 0 in the saved PC area for stub frames. |
86 } | 86 } |
87 | 87 |
88 #undef __ | 88 #undef __ |
89 | 89 |
90 } // namespace dart | 90 } // namespace dart |
91 | 91 |
92 #endif // defined TARGET_ARCH_X64 | 92 #endif // defined TARGET_ARCH_X64 |
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