[turbofan] Implemented the ChangeFloat64ToInt64 TurboFan operator.

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 1219 matching lines @@
 void InstructionSelector::VisitChangeFloat64ToInt32(Node* node) {
   VisitRR(this, kArm64Float64ToInt32, node);
 }
 
 
 void InstructionSelector::VisitChangeFloat64ToUint32(Node* node) {
   VisitRR(this, kArm64Float64ToUint32, node);
 }
 
 
+void InstructionSelector::VisitChangeFloat64ToInt64(Node* node) {
+  VisitRR(this, kArm64Float64ToInt64, node);
+}
+
+
 void InstructionSelector::VisitChangeInt32ToInt64(Node* node) {
   VisitRR(this, kArm64Sxtw, node);
 }
 
 
 void InstructionSelector::VisitChangeUint32ToUint64(Node* node) {
   Arm64OperandGenerator g(this);
   Node* value = node->InputAt(0);
   switch (value->opcode()) {
     case IrOpcode::kWord32And:
@@ skipping 811 matching lines @@
          MachineOperatorBuilder::kFloat64RoundTiesAway |
          MachineOperatorBuilder::kFloat64RoundTiesEven |
          MachineOperatorBuilder::kWord32ShiftIsSafe |
          MachineOperatorBuilder::kInt32DivIsSafe |
          MachineOperatorBuilder::kUint32DivIsSafe;
 }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8