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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 "src/v8.h" | 5 #include "src/v8.h" |
6 | 6 |
7 #if V8_TARGET_ARCH_IA32 | 7 #if V8_TARGET_ARCH_IA32 |
8 | 8 |
9 #include "src/ia32/lithium-codegen-ia32.h" | 9 #include "src/ia32/lithium-codegen-ia32.h" |
10 #include "src/ic.h" | 10 #include "src/ic.h" |
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2263 // Don't base result on EFLAGS when a NaN is involved. Instead | 2263 // Don't base result on EFLAGS when a NaN is involved. Instead |
2264 // jump to the false block. | 2264 // jump to the false block. |
2265 __ j(parity_even, instr->FalseLabel(chunk_)); | 2265 __ j(parity_even, instr->FalseLabel(chunk_)); |
2266 } else { | 2266 } else { |
2267 if (right->IsConstantOperand()) { | 2267 if (right->IsConstantOperand()) { |
2268 __ cmp(ToOperand(left), | 2268 __ cmp(ToOperand(left), |
2269 ToImmediate(right, instr->hydrogen()->representation())); | 2269 ToImmediate(right, instr->hydrogen()->representation())); |
2270 } else if (left->IsConstantOperand()) { | 2270 } else if (left->IsConstantOperand()) { |
2271 __ cmp(ToOperand(right), | 2271 __ cmp(ToOperand(right), |
2272 ToImmediate(left, instr->hydrogen()->representation())); | 2272 ToImmediate(left, instr->hydrogen()->representation())); |
2273 // We transposed the operands. Reverse the condition. | 2273 // We commuted the operands, so commute the condition. |
2274 cc = ReverseCondition(cc); | 2274 cc = CommuteCondition(cc); |
2275 } else { | 2275 } else { |
2276 __ cmp(ToRegister(left), ToOperand(right)); | 2276 __ cmp(ToRegister(left), ToOperand(right)); |
2277 } | 2277 } |
2278 } | 2278 } |
2279 EmitBranch(instr, cc); | 2279 EmitBranch(instr, cc); |
2280 } | 2280 } |
2281 } | 2281 } |
2282 | 2282 |
2283 | 2283 |
2284 void LCodeGen::DoCmpObjectEqAndBranch(LCmpObjectEqAndBranch* instr) { | 2284 void LCodeGen::DoCmpObjectEqAndBranch(LCmpObjectEqAndBranch* instr) { |
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4057 CallCode(ic, RelocInfo::CODE_TARGET, instr); | 4057 CallCode(ic, RelocInfo::CODE_TARGET, instr); |
4058 } | 4058 } |
4059 | 4059 |
4060 | 4060 |
4061 void LCodeGen::DoBoundsCheck(LBoundsCheck* instr) { | 4061 void LCodeGen::DoBoundsCheck(LBoundsCheck* instr) { |
4062 Condition cc = instr->hydrogen()->allow_equality() ? above : above_equal; | 4062 Condition cc = instr->hydrogen()->allow_equality() ? above : above_equal; |
4063 if (instr->index()->IsConstantOperand()) { | 4063 if (instr->index()->IsConstantOperand()) { |
4064 __ cmp(ToOperand(instr->length()), | 4064 __ cmp(ToOperand(instr->length()), |
4065 ToImmediate(LConstantOperand::cast(instr->index()), | 4065 ToImmediate(LConstantOperand::cast(instr->index()), |
4066 instr->hydrogen()->length()->representation())); | 4066 instr->hydrogen()->length()->representation())); |
4067 cc = ReverseCondition(cc); | 4067 cc = CommuteCondition(cc); |
4068 } else if (instr->length()->IsConstantOperand()) { | 4068 } else if (instr->length()->IsConstantOperand()) { |
4069 __ cmp(ToOperand(instr->index()), | 4069 __ cmp(ToOperand(instr->index()), |
4070 ToImmediate(LConstantOperand::cast(instr->length()), | 4070 ToImmediate(LConstantOperand::cast(instr->length()), |
4071 instr->hydrogen()->index()->representation())); | 4071 instr->hydrogen()->index()->representation())); |
4072 } else { | 4072 } else { |
4073 __ cmp(ToRegister(instr->index()), ToOperand(instr->length())); | 4073 __ cmp(ToRegister(instr->index()), ToOperand(instr->length())); |
4074 } | 4074 } |
4075 if (FLAG_debug_code && instr->hydrogen()->skip_check()) { | 4075 if (FLAG_debug_code && instr->hydrogen()->skip_check()) { |
4076 Label done; | 4076 Label done; |
4077 __ j(NegateCondition(cc), &done, Label::kNear); | 4077 __ j(NegateCondition(cc), &done, Label::kNear); |
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5642 __ bind(deferred->exit()); | 5642 __ bind(deferred->exit()); |
5643 __ bind(&done); | 5643 __ bind(&done); |
5644 } | 5644 } |
5645 | 5645 |
5646 | 5646 |
5647 #undef __ | 5647 #undef __ |
5648 | 5648 |
5649 } } // namespace v8::internal | 5649 } } // namespace v8::internal |
5650 | 5650 |
5651 #endif // V8_TARGET_ARCH_IA32 | 5651 #endif // V8_TARGET_ARCH_IA32 |
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