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Issue 774473004: Use weak cells to embed maps in store handler. (Closed) Base URL: https://chromium.googlesource.com/v8/v8.git@master
Patch Set: Fix arm64 Created 6 years ago
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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 "src/v8.h" 5 #include "src/v8.h"
6 6
7 #if V8_TARGET_ARCH_ARM64 7 #if V8_TARGET_ARCH_ARM64
8 8
9 #include "src/base/bits.h" 9 #include "src/base/bits.h"
10 #include "src/base/division-by-constant.h" 10 #include "src/base/division-by-constant.h"
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4643 } else { 4643 } else {
4644 Tbnz(bitmap_scratch, 1, has_color); 4644 Tbnz(bitmap_scratch, 1, has_color);
4645 } 4645 }
4646 Bind(&other_color); 4646 Bind(&other_color);
4647 } 4647 }
4648 4648
4649 // Fall through if it does not have the right color. 4649 // Fall through if it does not have the right color.
4650 } 4650 }
4651 4651
4652 4652
4653 void MacroAssembler::CheckMapDeprecated(Handle<Map> map,
4654 Register scratch,
4655 Label* if_deprecated) {
4656 if (map->CanBeDeprecated()) {
4657 Mov(scratch, Operand(map));
4658 Ldrsw(scratch, FieldMemOperand(scratch, Map::kBitField3Offset));
4659 TestAndBranchIfAnySet(scratch, Map::Deprecated::kMask, if_deprecated);
4660 }
4661 }
4662
4663
4664 void MacroAssembler::JumpIfBlack(Register object, 4653 void MacroAssembler::JumpIfBlack(Register object,
4665 Register scratch0, 4654 Register scratch0,
4666 Register scratch1, 4655 Register scratch1,
4667 Label* on_black) { 4656 Label* on_black) {
4668 DCHECK(strcmp(Marking::kBlackBitPattern, "10") == 0); 4657 DCHECK(strcmp(Marking::kBlackBitPattern, "10") == 0);
4669 HasColor(object, scratch0, scratch1, on_black, 1, 0); // kBlackBitPattern. 4658 HasColor(object, scratch0, scratch1, on_black, 1, 0); // kBlackBitPattern.
4670 } 4659 }
4671 4660
4672 4661
4673 void MacroAssembler::JumpIfDictionaryInPrototypeChain( 4662 void MacroAssembler::JumpIfDictionaryInPrototypeChain(
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5405 } 5394 }
5406 } 5395 }
5407 5396
5408 5397
5409 #undef __ 5398 #undef __
5410 5399
5411 5400
5412 } } // namespace v8::internal 5401 } } // namespace v8::internal
5413 5402
5414 #endif // V8_TARGET_ARCH_ARM64 5403 #endif // V8_TARGET_ARCH_ARM64
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