[turbofan] Introduce optional Float64Min and Float64Max machine operators.

src/compiler/arm64/instruction-selector-arm64.cc

Index: src/compiler/arm64/instruction-selector-arm64.cc
diff --git a/src/compiler/arm64/instruction-selector-arm64.cc b/src/compiler/arm64/instruction-selector-arm64.cc
index b8805078138c45e02077f90228d62b90ef301eba..7f8e9ea3bdd5d17522e0e72c1cf68ac468629053 100644
--- a/src/compiler/arm64/instruction-selector-arm64.cc
+++ b/src/compiler/arm64/instruction-selector-arm64.cc
@@ -1069,6 +1069,12 @@ void InstructionSelector::VisitFloat64Mod(Node* node) {
 }
 
 
+void InstructionSelector::VisitFloat64Max(Node* node) { UNREACHABLE(); }
+
+
+void InstructionSelector::VisitFloat64Min(Node* node) { UNREACHABLE(); }
+
+
 void InstructionSelector::VisitFloat64Sqrt(Node* node) {
   VisitRRFloat64(this, kArm64Float64Sqrt, node);
 }