[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 7bac111f7d1341d9efad84d620e5c4401e2742eb..bbe3bac2563d581f395c578451b4b990ddb0ed8f 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, kArm64Float32TernaryMax, node);
+}
 
 
-void InstructionSelector::VisitFloat64Max(Node* node) { UNREACHABLE(); }
+void InstructionSelector::VisitFloat64Max(Node* node) {
+  VisitRRR(this, kArm64Float64TernaryMax, node);
+}
 
 
-void InstructionSelector::VisitFloat32Min(Node* node) { UNREACHABLE(); }
+void InstructionSelector::VisitFloat32Min(Node* node) {
+  VisitRRR(this, kArm64Float32TernaryMin, node);
+}
 
 
-void InstructionSelector::VisitFloat64Min(Node* node) { UNREACHABLE(); }
+void InstructionSelector::VisitFloat64Min(Node* node) {
+  VisitRRR(this, kArm64Float64TernaryMin, node);
+}
 
 
 void InstructionSelector::VisitFloat32Abs(Node* node) {
@@ -2061,7 +2069,11 @@ 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 |