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Issue 1244693002: Add support for adding an external and a tagged pointer (Closed) Base URL: https://chromium.googlesource.com/v8/v8.git@master
Patch Set: updates Created 5 years, 5 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 <sstream> 5 #include <sstream>
6 6
7 #include "src/v8.h" 7 #include "src/v8.h"
8 8
9 #if V8_TARGET_ARCH_X64 9 #if V8_TARGET_ARCH_X64
10 10
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1599 LAddI* add = new(zone()) LAddI(left, right); 1599 LAddI* add = new(zone()) LAddI(left, right);
1600 bool can_overflow = instr->CheckFlag(HValue::kCanOverflow); 1600 bool can_overflow = instr->CheckFlag(HValue::kCanOverflow);
1601 LInstruction* result = use_lea ? DefineAsRegister(add) 1601 LInstruction* result = use_lea ? DefineAsRegister(add)
1602 : DefineSameAsFirst(add); 1602 : DefineSameAsFirst(add);
1603 if (can_overflow) { 1603 if (can_overflow) {
1604 result = AssignEnvironment(result); 1604 result = AssignEnvironment(result);
1605 } 1605 }
1606 return result; 1606 return result;
1607 } else if (instr->representation().IsExternal()) { 1607 } else if (instr->representation().IsExternal()) {
1608 DCHECK(instr->left()->representation().IsExternal()); 1608 DCHECK(instr->left()->representation().IsExternal());
1609 DCHECK(instr->right()->representation().IsInteger32()); 1609 DCHECK(instr->right()->representation().IsInteger32() ||
1610 instr->right()->representation().IsTagged());
1610 DCHECK(!instr->CheckFlag(HValue::kCanOverflow)); 1611 DCHECK(!instr->CheckFlag(HValue::kCanOverflow));
1611 bool use_lea = LAddI::UseLea(instr); 1612 bool use_lea = LAddI::UseLea(instr);
1612 LOperand* left = UseRegisterAtStart(instr->left()); 1613 LOperand* left = UseRegisterAtStart(instr->left());
1613 HValue* right_candidate = instr->right(); 1614 HValue* right_candidate = instr->right();
1614 LOperand* right = use_lea 1615 LOperand* right = use_lea
1615 ? UseRegisterOrConstantAtStart(right_candidate) 1616 ? UseRegisterOrConstantAtStart(right_candidate)
1616 : UseOrConstantAtStart(right_candidate); 1617 : UseOrConstantAtStart(right_candidate);
1617 LAddI* add = new(zone()) LAddI(left, right); 1618 LAddI* add = new(zone()) LAddI(left, right);
1618 LInstruction* result = use_lea 1619 LInstruction* result = use_lea
1619 ? DefineAsRegister(add) 1620 ? DefineAsRegister(add)
(...skipping 1117 matching lines...) Expand 10 before | Expand all | Expand 10 after
2737 LAllocateBlockContext* result = 2738 LAllocateBlockContext* result =
2738 new(zone()) LAllocateBlockContext(context, function); 2739 new(zone()) LAllocateBlockContext(context, function);
2739 return MarkAsCall(DefineFixed(result, rsi), instr); 2740 return MarkAsCall(DefineFixed(result, rsi), instr);
2740 } 2741 }
2741 2742
2742 2743
2743 } // namespace internal 2744 } // namespace internal
2744 } // namespace v8 2745 } // namespace v8
2745 2746
2746 #endif // V8_TARGET_ARCH_X64 2747 #endif // V8_TARGET_ARCH_X64
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