Index: src/compiler/x64/instruction-selector-x64.cc |
diff --git a/src/compiler/x64/instruction-selector-x64.cc b/src/compiler/x64/instruction-selector-x64.cc |
index c1328b3ee30683f9c1324e5eec8abe3d59c3d646..f10ad06cb07708dfdb2f33b672e340fff80c569b 100644 |
--- a/src/compiler/x64/instruction-selector-x64.cc |
+++ b/src/compiler/x64/instruction-selector-x64.cc |
@@ -832,12 +832,15 @@ void InstructionSelector::VisitTruncateInt64ToInt32(Node* node) { |
void InstructionSelector::VisitFloat64Add(Node* node) { |
X64OperandGenerator g(this); |
+ Node* left = node->InputAt(0); |
+ Node* right = node->InputAt(1); |
+ if (g.CanBeBetterLeftOperand(right)) std::swap(left, right); |
if (IsSupported(AVX)) { |
- Emit(kAVXFloat64Add, g.DefineAsRegister(node), |
- g.UseRegister(node->InputAt(0)), g.Use(node->InputAt(1))); |
+ Emit(kAVXFloat64Add, g.DefineAsRegister(node), g.UseRegister(left), |
+ g.Use(right)); |
} else { |
- Emit(kSSEFloat64Add, g.DefineSameAsFirst(node), |
- g.UseRegister(node->InputAt(0)), g.Use(node->InputAt(1))); |
+ Emit(kSSEFloat64Add, g.DefineSameAsFirst(node), g.UseRegister(left), |
+ g.Use(right)); |
} |
} |
@@ -856,12 +859,15 @@ void InstructionSelector::VisitFloat64Sub(Node* node) { |
void InstructionSelector::VisitFloat64Mul(Node* node) { |
X64OperandGenerator g(this); |
+ Node* left = node->InputAt(0); |
+ Node* right = node->InputAt(1); |
+ if (g.CanBeBetterLeftOperand(right)) std::swap(left, right); |
if (IsSupported(AVX)) { |
- Emit(kAVXFloat64Mul, g.DefineAsRegister(node), |
- g.UseRegister(node->InputAt(0)), g.Use(node->InputAt(1))); |
+ Emit(kAVXFloat64Mul, g.DefineAsRegister(node), g.UseRegister(left), |
+ g.Use(right)); |
} else { |
- Emit(kSSEFloat64Mul, g.DefineSameAsFirst(node), |
- g.UseRegister(node->InputAt(0)), g.Use(node->InputAt(1))); |
+ Emit(kSSEFloat64Mul, g.DefineSameAsFirst(node), g.UseRegister(left), |
+ g.Use(right)); |
} |
} |