A64 support for DoubleToIStub (truncating).

src/a64/lithium-a64.h

 // Copyright 2013 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 2662 matching lines @@
 
   LOperand* object() { return inputs_[0]; }
   LOperand* temp1() { return temps_[0]; }
   LOperand* temp2() { return temps_[1]; }
 
   DECLARE_CONCRETE_INSTRUCTION(TrapAllocationMemento, "trap-allocation-memento")
 };
 
 
 class LTruncateDoubleToIntOrSmi V8_FINAL
-    : public LTemplateInstruction<1, 1, 2> {
+    : public LTemplateInstruction<1, 1, 0> {
  public:
-  LTruncateDoubleToIntOrSmi(LOperand* value, LOperand* temp1, LOperand* temp2) {
+  explicit LTruncateDoubleToIntOrSmi(LOperand* value) {
     inputs_[0] = value;
-    temps_[0] = temp1;
-    temps_[1] = temp2;
   }
 
   LOperand* value() { return inputs_[0]; }
-  LOperand* temp1() { return temps_[0]; }
-  LOperand* temp2() { return temps_[1]; }
 
   DECLARE_CONCRETE_INSTRUCTION(TruncateDoubleToIntOrSmi,
                                "truncate-double-to-int-or-smi")
   DECLARE_HYDROGEN_ACCESSOR(UnaryOperation)
 
   bool tag_result() { return hydrogen()->representation().IsSmi(); }
 };
 
 
 class LTypeof V8_FINAL : public LTemplateInstruction<1, 2, 0> {
@@ skipping 258 matching lines @@
 
   DISALLOW_COPY_AND_ASSIGN(LChunkBuilder);
 };
 
 #undef DECLARE_HYDROGEN_ACCESSOR
 #undef DECLARE_CONCRETE_INSTRUCTION
 
 } }  // namespace v8::internal
 
 #endif  // V8_A64_LITHIUM_A64_H_