Prevent deopt on double value assignment to typed arrays

src/x64/lithium-x64.h

 // Copyright 2011 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 1616 matching lines @@
 
 
 // Sometimes truncating conversion from a tagged value to an int32.
 class LDoubleToI: public LTemplateInstruction<1, 1, 0> {
  public:
   explicit LDoubleToI(LOperand* value) {
     inputs_[0] = value;
   }
 
   DECLARE_CONCRETE_INSTRUCTION(DoubleToI, "double-to-i")
-  DECLARE_HYDROGEN_ACCESSOR(Change)
+  DECLARE_HYDROGEN_ACCESSOR(UnaryOperation)
 
   bool truncating() { return hydrogen()->CanTruncateToInt32(); }
 };
 
 
 // Truncating conversion from a tagged value to an int32.
 class LTaggedToI: public LTemplateInstruction<1, 1, 1> {
  public:
   LTaggedToI(LOperand* value, LOperand* temp) {
     inputs_[0] = value;
     temps_[0] = temp;
   }
 
   DECLARE_CONCRETE_INSTRUCTION(TaggedToI, "tagged-to-i")
-  DECLARE_HYDROGEN_ACCESSOR(Change)
+  DECLARE_HYDROGEN_ACCESSOR(UnaryOperation)
 
   bool truncating() { return hydrogen()->CanTruncateToInt32(); }
 };
 
 
 class LSmiTag: public LTemplateInstruction<1, 1, 0> {
  public:
   explicit LSmiTag(LOperand* value) {
     inputs_[0] = value;
   }
@@ skipping 661 matching lines @@
 
   DISALLOW_COPY_AND_ASSIGN(LChunkBuilder);
 };
 
 #undef DECLARE_HYDROGEN_ACCESSOR
 #undef DECLARE_CONCRETE_INSTRUCTION
 
 } }  // namespace v8::int
 
 #endif  // V8_X64_LITHIUM_X64_H_