PPC/s390: [turbofan] Change Float64Max/Float64Min to JavaScript semantics.

src/compiler/s390/instruction-selector-s390.cc

Index: src/compiler/s390/instruction-selector-s390.cc
diff --git a/src/compiler/s390/instruction-selector-s390.cc b/src/compiler/s390/instruction-selector-s390.cc
index 94f640bcca99c206277661c8856fe29e8b60e42c..b5528f0095f11206667de2c2f955ac2779575700 100644
--- a/src/compiler/s390/instruction-selector-s390.cc
+++ b/src/compiler/s390/instruction-selector-s390.cc
@@ -1212,17 +1212,17 @@ void InstructionSelector::VisitFloat64Mod(Node* node) {
       ->MarkAsCall();
 }
 
-void InstructionSelector::VisitFloat32Max(Node* node) { UNREACHABLE(); }
-
-void InstructionSelector::VisitFloat64Max(Node* node) { UNREACHABLE(); }
+void InstructionSelector::VisitFloat64Max(Node* node) {
+  VisitRRR(this, kS390_MaxDouble, node);
+}
 
 void InstructionSelector::VisitFloat64SilenceNaN(Node* node) {
   VisitRR(this, kS390_Float64SilenceNaN, node);
 }
 
-void InstructionSelector::VisitFloat32Min(Node* node) { UNREACHABLE(); }
-
-void InstructionSelector::VisitFloat64Min(Node* node) { UNREACHABLE(); }
+void InstructionSelector::VisitFloat64Min(Node* node) {
+  VisitRRR(this, kS390_MinDouble, node);
+}
 
 void InstructionSelector::VisitFloat32Abs(Node* node) {
   VisitRR(this, kS390_AbsFloat, node);