[turbofan] Change TruncateFloat32ToInt64 to TryTruncateFloat32ToInt64.

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::VisitTruncateFloat32ToInt64(Node* node) {
-  VisitRR(this, kArm64Float32ToInt64, node);
+void InstructionSelector::VisitTryTruncateFloat32ToInt64(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(kArm64Float32ToInt64, output_count, outputs, 1, inputs);
 }
 
 
 void InstructionSelector::VisitTryTruncateFloat64ToInt64(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);
@@ skipping 550 matching lines @@
           if (result == NULL || IsDefined(result)) {
             switch (node->opcode()) {
               case IrOpcode::kInt32AddWithOverflow:
                 cont.OverwriteAndNegateIfEqual(kOverflow);
                 return VisitBinop<Int32BinopMatcher>(this, node, kArm64Add32,
                                                      kArithmeticImm, &cont);
               case IrOpcode::kInt32SubWithOverflow:
                 cont.OverwriteAndNegateIfEqual(kOverflow);
                 return VisitBinop<Int32BinopMatcher>(this, node, kArm64Sub32,
                                                      kArithmeticImm, &cont);
+              case IrOpcode::kTryTruncateFloat64ToInt64:
+                return VisitTryTruncateFloat64ToInt64(result);
+              case IrOpcode::kTryTruncateFloat32ToInt64:
+                return VisitTryTruncateFloat32ToInt64(result);
               default:
                 break;
             }
           }
         }
         break;
       case IrOpcode::kInt32Add:
         return VisitWordCompare(this, value, kArm64Cmn32, &cont, true,
                                 kArithmeticImm);
       case IrOpcode::kInt32Sub:
@@ skipping 300 matching lines @@
          MachineOperatorBuilder::kFloat32RoundTiesEven |
          MachineOperatorBuilder::kFloat64RoundTiesEven |
          MachineOperatorBuilder::kWord32ShiftIsSafe |
          MachineOperatorBuilder::kInt32DivIsSafe |
          MachineOperatorBuilder::kUint32DivIsSafe;
 }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8