[turbofan] Introduce optional Float64Min and Float64Max machine operators.

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 248444cd599c617caf29349b7226eee0511deae3..20276ede7e62364fb5c4f6bff3f6780007224f32 100644
--- a/src/compiler/arm/instruction-selector-arm.cc
+++ b/src/compiler/arm/instruction-selector-arm.cc
@@ -1000,6 +1000,12 @@ void InstructionSelector::VisitFloat64Mod(Node* node) {
 }
 
 
+void InstructionSelector::VisitFloat64Max(Node* node) { UNREACHABLE(); }
+
+
+void InstructionSelector::VisitFloat64Min(Node* node) { UNREACHABLE(); }
+
+
 void InstructionSelector::VisitFloat64Sqrt(Node* node) {
   ArmOperandGenerator g(this);
   Emit(kArmVsqrtF64, g.DefineAsRegister(node), g.UseRegister(node->InputAt(0)));