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

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

 // Copyright 2014 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/compiler/instruction-selector-impl.h"
 #include "src/compiler/node-matchers.h"
 #include "src/compiler/node-properties.h"
 
 namespace v8 {
 namespace internal {
@@ skipping 1702 matching lines @@
 
 void InstructionSelector::VisitFloat32RoundTiesEven(Node* node) {
   VisitRR(this, kArm64Float32RoundTiesEven, node);
 }
 
 
 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,
     Node* node) {
   Arm64OperandGenerator g(this);
 
   bool from_native_stack = linkage()->GetIncomingDescriptor()->UseNativeStack();
   bool to_native_stack = descriptor->UseNativeStack();
 
   bool always_claim = to_native_stack != from_native_stack;
@@ skipping 674 matching lines @@
          MachineOperatorBuilder::kFloat64RoundUp |
          MachineOperatorBuilder::kFloat32RoundTruncate |
          MachineOperatorBuilder::kFloat64RoundTruncate |
          MachineOperatorBuilder::kFloat64RoundTiesAway |
          MachineOperatorBuilder::kFloat32RoundTiesEven |
          MachineOperatorBuilder::kFloat64RoundTiesEven |
          MachineOperatorBuilder::kWord32ShiftIsSafe |
          MachineOperatorBuilder::kInt32DivIsSafe |
          MachineOperatorBuilder::kUint32DivIsSafe |
          MachineOperatorBuilder::kWord32ReverseBits |
-         MachineOperatorBuilder::kWord64ReverseBits;
+         MachineOperatorBuilder::kWord64ReverseBits |
+         MachineOperatorBuilder::kFloat32Neg |
+         MachineOperatorBuilder::kFloat64Neg;
 }
 
 // static
 MachineOperatorBuilder::AlignmentRequirements
 InstructionSelector::AlignmentRequirements() {
   return MachineOperatorBuilder::AlignmentRequirements::
       FullUnalignedAccessSupport();
 }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8