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Issue 1632913003: [heap] Move to page lookups for SemiSpace, NewSpace, and Heap containment methods (Closed) Base URL: https://chromium.googlesource.com/v8/v8.git@master
Patch Set: mips ports Created 4 years, 10 months 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 #include <limits.h> // For LONG_MIN, LONG_MAX. 5 #include <limits.h> // For LONG_MIN, LONG_MAX.
6 6
7 #if V8_TARGET_ARCH_MIPS64 7 #if V8_TARGET_ARCH_MIPS64
8 8
9 #include "src/base/division-by-constant.h" 9 #include "src/base/division-by-constant.h"
10 #include "src/bootstrapper.h" 10 #include "src/bootstrapper.h"
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154 int register_offset = SafepointRegisterStackIndex(reg.code()) * kPointerSize; 154 int register_offset = SafepointRegisterStackIndex(reg.code()) * kPointerSize;
155 return MemOperand(sp, doubles_size + register_offset); 155 return MemOperand(sp, doubles_size + register_offset);
156 } 156 }
157 157
158 158
159 void MacroAssembler::InNewSpace(Register object, 159 void MacroAssembler::InNewSpace(Register object,
160 Register scratch, 160 Register scratch,
161 Condition cc, 161 Condition cc,
162 Label* branch) { 162 Label* branch) {
163 DCHECK(cc == eq || cc == ne); 163 DCHECK(cc == eq || cc == ne);
164 And(scratch, object, Operand(ExternalReference::new_space_mask(isolate()))); 164 const int mask =
165 Branch(branch, cc, scratch, 165 1 << MemoryChunk::IN_FROM_SPACE | 1 << MemoryChunk::IN_TO_SPACE;
166 Operand(ExternalReference::new_space_start(isolate()))); 166 CheckPageFlag(object, scratch, mask, cc, branch);
167 } 167 }
168 168
169 169
170 // Clobbers object, dst, value, and ra, if (ra_status == kRAHasBeenSaved) 170 // Clobbers object, dst, value, and ra, if (ra_status == kRAHasBeenSaved)
171 // The register 'object' contains a heap object pointer. The heap object 171 // The register 'object' contains a heap object pointer. The heap object
172 // tag is shifted away. 172 // tag is shifted away.
173 void MacroAssembler::RecordWriteField( 173 void MacroAssembler::RecordWriteField(
174 Register object, 174 Register object,
175 int offset, 175 int offset,
176 Register value, 176 Register value,
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6547 if (mag.shift > 0) sra(result, result, mag.shift); 6547 if (mag.shift > 0) sra(result, result, mag.shift);
6548 srl(at, dividend, 31); 6548 srl(at, dividend, 31);
6549 Addu(result, result, Operand(at)); 6549 Addu(result, result, Operand(at));
6550 } 6550 }
6551 6551
6552 6552
6553 } // namespace internal 6553 } // namespace internal
6554 } // namespace v8 6554 } // namespace v8
6555 6555
6556 #endif // V8_TARGET_ARCH_MIPS64 6556 #endif // V8_TARGET_ARCH_MIPS64
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