[arm64] Implement Float(32|64)(Min|Max) using fcsel.

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 4d2927232e5b3b99148f5331676c0227f9940e52..bf7d54dfe3a71ac250ab39e6b72dca0f6fd289f5 100644
--- a/src/compiler/arm64/instruction-selector-arm64.cc
+++ b/src/compiler/arm64/instruction-selector-arm64.cc
@@ -1369,16 +1369,24 @@ void InstructionSelector::VisitFloat64Mod(Node* node) {
 }
 
 
-void InstructionSelector::VisitFloat32Max(Node* node) { UNREACHABLE(); }
+void InstructionSelector::VisitFloat32Max(Node* node) {
+  VisitRRR(this, kArm64Float32Max, node);
+}
 
 
-void InstructionSelector::VisitFloat64Max(Node* node) { UNREACHABLE(); }
+void InstructionSelector::VisitFloat64Max(Node* node) {
+  VisitRRR(this, kArm64Float64Max, node);
+}
 
 
-void InstructionSelector::VisitFloat32Min(Node* node) { UNREACHABLE(); }
+void InstructionSelector::VisitFloat32Min(Node* node) {
+  VisitRRR(this, kArm64Float32Min, node);
+}
 
 
-void InstructionSelector::VisitFloat64Min(Node* node) { UNREACHABLE(); }
+void InstructionSelector::VisitFloat64Min(Node* node) {
+  VisitRRR(this, kArm64Float64Min, node);
+}
 
 
 void InstructionSelector::VisitFloat32Abs(Node* node) {
@@ -1958,7 +1966,11 @@ void InstructionSelector::VisitFloat64InsertHighWord32(Node* node) {
 // static
 MachineOperatorBuilder::Flags
 InstructionSelector::SupportedMachineOperatorFlags() {
-  return MachineOperatorBuilder::kFloat64RoundDown |
+  return MachineOperatorBuilder::kFloat32Max |
+         MachineOperatorBuilder::kFloat32Min |
+         MachineOperatorBuilder::kFloat64Max |
+         MachineOperatorBuilder::kFloat64Min |
+         MachineOperatorBuilder::kFloat64RoundDown |
          MachineOperatorBuilder::kFloat64RoundTruncate |
          MachineOperatorBuilder::kFloat64RoundTiesAway |
          MachineOperatorBuilder::kWord32ShiftIsSafe |