[turbofan] Change TruncateFloat64ToUint64 to TryTruncateFloatToUint64.

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 1246 matching lines @@
 
   Emit(kArm64Float64ToInt64, output_count, outputs, 1, inputs);
 }
 
 
 void InstructionSelector::VisitTruncateFloat32ToUint64(Node* node) {
   VisitRR(this, kArm64Float32ToUint64, node);
 }
 
 
-void InstructionSelector::VisitTruncateFloat64ToUint64(Node* node) {
-  VisitRR(this, kArm64Float64ToUint64, node);
+void InstructionSelector::VisitTryTruncateFloat64ToUint64(Node* node) {
+  Arm64OperandGenerator g(this);
+
+  InstructionOperand inputs[] = {g.UseRegister(node->InputAt(0))};
+  InstructionOperand outputs[2];
+  size_t output_count = 0;
+  outputs[output_count++] = g.DefineAsRegister(node);
+
+  Node* success_output = NodeProperties::FindProjection(node, 1);
+  if (success_output) {
+    outputs[output_count++] = g.DefineAsRegister(success_output);
+  }
+
+  Emit(kArm64Float64ToUint64, output_count, outputs, 1, inputs);
 }
 
 
 void InstructionSelector::VisitChangeInt32ToInt64(Node* node) {
   VisitRR(this, kArm64Sxtw, node);
 }
 
 
 void InstructionSelector::VisitChangeUint32ToUint64(Node* node) {
   Arm64OperandGenerator g(this);
@@ skipping 843 matching lines @@
          MachineOperatorBuilder::kFloat32RoundTiesEven |
          MachineOperatorBuilder::kFloat64RoundTiesEven |
          MachineOperatorBuilder::kWord32ShiftIsSafe |
          MachineOperatorBuilder::kInt32DivIsSafe |
          MachineOperatorBuilder::kUint32DivIsSafe;
 }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8