[turbofan] Change Float64Max/Float64Min to JavaScript semantics.

src/compiler/arm/instruction-selector-arm.cc

Index: src/compiler/arm/instruction-selector-arm.cc
diff --git a/src/compiler/arm/instruction-selector-arm.cc b/src/compiler/arm/instruction-selector-arm.cc
index c803d97b1ba139e92f35c94f9450091fcebfd321..2b5c395afe2704e26708f30d38c7f2fb0b9ccdb4 100644
--- a/src/compiler/arm/instruction-selector-arm.cc
+++ b/src/compiler/arm/instruction-selector-arm.cc
@@ -1390,13 +1390,7 @@ void InstructionSelector::VisitFloat64Mod(Node* node) {
        g.UseFixed(node->InputAt(1), d1))->MarkAsCall();
 }
 
-void InstructionSelector::VisitFloat32Max(Node* node) {
-  DCHECK(IsSupported(ARMv8));
-  VisitRRR(this, kArmFloat32Max, node);
-}
-
 void InstructionSelector::VisitFloat64Max(Node* node) {
-  DCHECK(IsSupported(ARMv8));
   VisitRRR(this, kArmFloat64Max, node);
 }
 
@@ -1404,13 +1398,7 @@ void InstructionSelector::VisitFloat64SilenceNaN(Node* node) {
   VisitRR(this, kArmFloat64SilenceNaN, node);
 }
 
-void InstructionSelector::VisitFloat32Min(Node* node) {
-  DCHECK(IsSupported(ARMv8));
-  VisitRRR(this, kArmFloat32Min, node);
-}
-
 void InstructionSelector::VisitFloat64Min(Node* node) {
-  DCHECK(IsSupported(ARMv8));
   VisitRRR(this, kArmFloat64Min, node);
 }
 
@@ -2174,10 +2162,6 @@ InstructionSelector::SupportedMachineOperatorFlags() {
              MachineOperatorBuilder::kFloat64RoundTiesAway |
              MachineOperatorBuilder::kFloat32RoundTiesEven |
              MachineOperatorBuilder::kFloat64RoundTiesEven |
-             MachineOperatorBuilder::kFloat32Min |
-             MachineOperatorBuilder::kFloat32Max |
-             MachineOperatorBuilder::kFloat64Min |
-             MachineOperatorBuilder::kFloat64Max |
              MachineOperatorBuilder::kFloat32Neg |
              MachineOperatorBuilder::kFloat64Neg;
   }