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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 #if V8_TARGET_ARCH_X64 | 5 #if V8_TARGET_ARCH_X64 |
6 | 6 |
7 #include "src/base/bits.h" | 7 #include "src/base/bits.h" |
8 #include "src/base/division-by-constant.h" | 8 #include "src/base/division-by-constant.h" |
9 #include "src/bootstrapper.h" | 9 #include "src/bootstrapper.h" |
10 #include "src/codegen.h" | 10 #include "src/codegen.h" |
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4966 } | 4966 } |
4967 | 4967 |
4968 | 4968 |
4969 void MacroAssembler::Allocate(int object_size, | 4969 void MacroAssembler::Allocate(int object_size, |
4970 Register result, | 4970 Register result, |
4971 Register result_end, | 4971 Register result_end, |
4972 Register scratch, | 4972 Register scratch, |
4973 Label* gc_required, | 4973 Label* gc_required, |
4974 AllocationFlags flags) { | 4974 AllocationFlags flags) { |
4975 DCHECK((flags & (RESULT_CONTAINS_TOP | SIZE_IN_WORDS)) == 0); | 4975 DCHECK((flags & (RESULT_CONTAINS_TOP | SIZE_IN_WORDS)) == 0); |
4976 DCHECK(object_size <= Page::kMaxRegularHeapObjectSize); | 4976 DCHECK(object_size <= kMaxRegularHeapObjectSize); |
4977 DCHECK((flags & ALLOCATION_FOLDED) == 0); | 4977 DCHECK((flags & ALLOCATION_FOLDED) == 0); |
4978 if (!FLAG_inline_new) { | 4978 if (!FLAG_inline_new) { |
4979 if (emit_debug_code()) { | 4979 if (emit_debug_code()) { |
4980 // Trash the registers to simulate an allocation failure. | 4980 // Trash the registers to simulate an allocation failure. |
4981 movl(result, Immediate(0x7091)); | 4981 movl(result, Immediate(0x7091)); |
4982 if (result_end.is_valid()) { | 4982 if (result_end.is_valid()) { |
4983 movl(result_end, Immediate(0x7191)); | 4983 movl(result_end, Immediate(0x7191)); |
4984 } | 4984 } |
4985 if (scratch.is_valid()) { | 4985 if (scratch.is_valid()) { |
4986 movl(scratch, Immediate(0x7291)); | 4986 movl(scratch, Immediate(0x7291)); |
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5822 movl(rax, dividend); | 5822 movl(rax, dividend); |
5823 shrl(rax, Immediate(31)); | 5823 shrl(rax, Immediate(31)); |
5824 addl(rdx, rax); | 5824 addl(rdx, rax); |
5825 } | 5825 } |
5826 | 5826 |
5827 | 5827 |
5828 } // namespace internal | 5828 } // namespace internal |
5829 } // namespace v8 | 5829 } // namespace v8 |
5830 | 5830 |
5831 #endif // V8_TARGET_ARCH_X64 | 5831 #endif // V8_TARGET_ARCH_X64 |
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