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Side by Side Diff: src/x87/macro-assembler-x87.cc

Issue 1541323005: X87: Remove inlined marking part. (Closed) Base URL: https://chromium.googlesource.com/v8/v8.git@master
Patch Set: Created 5 years ago
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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_X87 5 #if V8_TARGET_ARCH_X87
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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2822 2822
2823 // If the value is black or grey we don't need to do anything. 2823 // If the value is black or grey we don't need to do anything.
2824 DCHECK(strcmp(Marking::kWhiteBitPattern, "00") == 0); 2824 DCHECK(strcmp(Marking::kWhiteBitPattern, "00") == 0);
2825 DCHECK(strcmp(Marking::kBlackBitPattern, "10") == 0); 2825 DCHECK(strcmp(Marking::kBlackBitPattern, "10") == 0);
2826 DCHECK(strcmp(Marking::kGreyBitPattern, "11") == 0); 2826 DCHECK(strcmp(Marking::kGreyBitPattern, "11") == 0);
2827 DCHECK(strcmp(Marking::kImpossibleBitPattern, "01") == 0); 2827 DCHECK(strcmp(Marking::kImpossibleBitPattern, "01") == 0);
2828 2828
2829 // Since both black and grey have a 1 in the first position and white does 2829 // Since both black and grey have a 1 in the first position and white does
2830 // not have a 1 there we only need to check one bit. 2830 // not have a 1 there we only need to check one bit.
2831 test(mask_scratch, Operand(bitmap_scratch, MemoryChunk::kHeaderSize)); 2831 test(mask_scratch, Operand(bitmap_scratch, MemoryChunk::kHeaderSize));
2832 j(zero, &value_is_white, Label::kNear); 2832 j(zero, value_is_white, Label::kNear);
2833 } 2833 }
2834 2834
2835 2835
2836 void MacroAssembler::EnumLength(Register dst, Register map) { 2836 void MacroAssembler::EnumLength(Register dst, Register map) {
2837 STATIC_ASSERT(Map::EnumLengthBits::kShift == 0); 2837 STATIC_ASSERT(Map::EnumLengthBits::kShift == 0);
2838 mov(dst, FieldOperand(map, Map::kBitField3Offset)); 2838 mov(dst, FieldOperand(map, Map::kBitField3Offset));
2839 and_(dst, Immediate(Map::EnumLengthBits::kMask)); 2839 and_(dst, Immediate(Map::EnumLengthBits::kMask));
2840 SmiTag(dst); 2840 SmiTag(dst);
2841 } 2841 }
2842 2842
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2953 mov(eax, dividend); 2953 mov(eax, dividend);
2954 shr(eax, 31); 2954 shr(eax, 31);
2955 add(edx, eax); 2955 add(edx, eax);
2956 } 2956 }
2957 2957
2958 2958
2959 } // namespace internal 2959 } // namespace internal
2960 } // namespace v8 2960 } // namespace v8
2961 2961
2962 #endif // V8_TARGET_ARCH_X87 2962 #endif // V8_TARGET_ARCH_X87
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