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Issue 279743002: Improve Array.shift() performance for small arrays. (Closed) Base URL: https://v8.googlecode.com/svn/branches/bleeding_edge
Patch Set: Cosmetic fix Created 6 years, 7 months 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 "v8.h" 5 #include "v8.h"
6 6
7 #include "lithium-allocator-inl.h" 7 #include "lithium-allocator-inl.h"
8 #include "arm64/lithium-arm64.h" 8 #include "arm64/lithium-arm64.h"
9 #include "arm64/lithium-codegen-arm64.h" 9 #include "arm64/lithium-codegen-arm64.h"
10 #include "hydrogen-osr.h" 10 #include "hydrogen-osr.h"
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2502 } else { 2502 } else {
2503 LOperand* object = UseFixed(instr->object(), x0); 2503 LOperand* object = UseFixed(instr->object(), x0);
2504 LOperand* context = UseFixed(instr->context(), cp); 2504 LOperand* context = UseFixed(instr->context(), cp);
2505 LTransitionElementsKind* result = 2505 LTransitionElementsKind* result =
2506 new(zone()) LTransitionElementsKind(object, context, NULL, NULL); 2506 new(zone()) LTransitionElementsKind(object, context, NULL, NULL);
2507 return MarkAsCall(result, instr); 2507 return MarkAsCall(result, instr);
2508 } 2508 }
2509 } 2509 }
2510 2510
2511 2511
2512 LInstruction* LChunkBuilder::DoArrayShift(HArrayShift* instr) {
2513 LOperand* object = UseFixed(instr->object(), x0);
2514 LOperand* context = UseFixed(instr->context(), cp);
2515 LArrayShift* result = new(zone()) LArrayShift(context, object);
2516 return MarkAsCall(DefineFixed(result, x0), instr, CANNOT_DEOPTIMIZE_EAGERLY);
2517 }
2518
2519
2512 LInstruction* LChunkBuilder::DoTrapAllocationMemento( 2520 LInstruction* LChunkBuilder::DoTrapAllocationMemento(
2513 HTrapAllocationMemento* instr) { 2521 HTrapAllocationMemento* instr) {
2514 LOperand* object = UseRegister(instr->object()); 2522 LOperand* object = UseRegister(instr->object());
2515 LOperand* temp1 = TempRegister(); 2523 LOperand* temp1 = TempRegister();
2516 LOperand* temp2 = TempRegister(); 2524 LOperand* temp2 = TempRegister();
2517 LTrapAllocationMemento* result = 2525 LTrapAllocationMemento* result =
2518 new(zone()) LTrapAllocationMemento(object, temp1, temp2); 2526 new(zone()) LTrapAllocationMemento(object, temp1, temp2);
2519 return AssignEnvironment(result); 2527 return AssignEnvironment(result);
2520 } 2528 }
2521 2529
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2695 2703
2696 LInstruction* LChunkBuilder::DoWrapReceiver(HWrapReceiver* instr) { 2704 LInstruction* LChunkBuilder::DoWrapReceiver(HWrapReceiver* instr) {
2697 LOperand* receiver = UseRegister(instr->receiver()); 2705 LOperand* receiver = UseRegister(instr->receiver());
2698 LOperand* function = UseRegister(instr->function()); 2706 LOperand* function = UseRegister(instr->function());
2699 LWrapReceiver* result = new(zone()) LWrapReceiver(receiver, function); 2707 LWrapReceiver* result = new(zone()) LWrapReceiver(receiver, function);
2700 return AssignEnvironment(DefineAsRegister(result)); 2708 return AssignEnvironment(DefineAsRegister(result));
2701 } 2709 }
2702 2710
2703 2711
2704 } } // namespace v8::internal 2712 } } // namespace v8::internal
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