[arm] [arm64] Add optional operators Float32Neg and Float64Neg.

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 03e19cf0542279e8aa02b20b5fa53c17adf10df6..06dce93feebcfc46bb7fbf678018a2a64badfc0c 100644
--- a/src/compiler/arm64/instruction-selector-arm64.cc
+++ b/src/compiler/arm64/instruction-selector-arm64.cc
@@ -1720,6 +1720,13 @@ void InstructionSelector::VisitFloat64RoundTiesEven(Node* node) {
   VisitRR(this, kArm64Float64RoundTiesEven, node);
 }
 
+void InstructionSelector::VisitFloat32Neg(Node* node) {
+  VisitRR(this, kArm64Float32Neg, node);
+}
+
+void InstructionSelector::VisitFloat64Neg(Node* node) {
+  VisitRR(this, kArm64Float64Neg, node);
+}
 
 void InstructionSelector::EmitPrepareArguments(
     ZoneVector<PushParameter>* arguments, const CallDescriptor* descriptor,
@@ -2414,7 +2421,9 @@ InstructionSelector::SupportedMachineOperatorFlags() {
          MachineOperatorBuilder::kInt32DivIsSafe |
          MachineOperatorBuilder::kUint32DivIsSafe |
          MachineOperatorBuilder::kWord32ReverseBits |
-         MachineOperatorBuilder::kWord64ReverseBits;
+         MachineOperatorBuilder::kWord64ReverseBits |
+         MachineOperatorBuilder::kFloat32Neg |
+         MachineOperatorBuilder::kFloat64Neg;
 }
 
 // static