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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_MIPS64 | 9 #if V8_TARGET_ARCH_MIPS64 |
10 | 10 |
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699 if (instr->representation().IsSmi() && constant_value > 0) { | 699 if (instr->representation().IsSmi() && constant_value > 0) { |
700 does_deopt = !instr->CheckUsesForFlag(HValue::kTruncatingToSmi); | 700 does_deopt = !instr->CheckUsesForFlag(HValue::kTruncatingToSmi); |
701 } | 701 } |
702 } else { | 702 } else { |
703 right = UseRegisterAtStart(right_value); | 703 right = UseRegisterAtStart(right_value); |
704 } | 704 } |
705 | 705 |
706 // Shift operations can only deoptimize if we do a logical shift | 706 // Shift operations can only deoptimize if we do a logical shift |
707 // by 0 and the result cannot be truncated to int32. | 707 // by 0 and the result cannot be truncated to int32. |
708 if (op == Token::SHR && constant_value == 0) { | 708 if (op == Token::SHR && constant_value == 0) { |
709 if (FLAG_opt_safe_uint32_operations) { | 709 does_deopt = !instr->CheckFlag(HInstruction::kUint32); |
710 does_deopt = !instr->CheckFlag(HInstruction::kUint32); | |
711 } else { | |
712 does_deopt = !instr->CheckUsesForFlag(HValue::kTruncatingToInt32); | |
713 } | |
714 } | 710 } |
715 | 711 |
716 LInstruction* result = | 712 LInstruction* result = |
717 DefineAsRegister(new(zone()) LShiftI(op, left, right, does_deopt)); | 713 DefineAsRegister(new(zone()) LShiftI(op, left, right, does_deopt)); |
718 return does_deopt ? AssignEnvironment(result) : result; | 714 return does_deopt ? AssignEnvironment(result) : result; |
719 } else { | 715 } else { |
720 return DoArithmeticT(op, instr); | 716 return DoArithmeticT(op, instr); |
721 } | 717 } |
722 } | 718 } |
723 | 719 |
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2587 LOperand* function = UseRegisterAtStart(instr->function()); | 2583 LOperand* function = UseRegisterAtStart(instr->function()); |
2588 LAllocateBlockContext* result = | 2584 LAllocateBlockContext* result = |
2589 new(zone()) LAllocateBlockContext(context, function); | 2585 new(zone()) LAllocateBlockContext(context, function); |
2590 return MarkAsCall(DefineFixed(result, cp), instr); | 2586 return MarkAsCall(DefineFixed(result, cp), instr); |
2591 } | 2587 } |
2592 | 2588 |
2593 | 2589 |
2594 } } // namespace v8::internal | 2590 } } // namespace v8::internal |
2595 | 2591 |
2596 #endif // V8_TARGET_ARCH_MIPS64 | 2592 #endif // V8_TARGET_ARCH_MIPS64 |
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