Use sarq on x64

src/x64/lithium-codegen-x64.cc

 // 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 5590 matching lines @@
   };
 
   Register object = ToRegister(instr->object());
   Register index = ToRegister(instr->index());
 
   DeferredLoadMutableDouble* deferred;
   deferred = new(zone()) DeferredLoadMutableDouble(this, instr, object, index);
 
   Label out_of_object, done;
   __ Move(kScratchRegister, Smi::FromInt(1));
-  __ testq(index, kScratchRegister);
+  __ testp(index, kScratchRegister);
   __ j(not_zero, deferred->entry());
 
-  __ sar(index, Immediate(1));
+  __ sarp(index, Immediate(1));
 
   __ SmiToInteger32(index, index);
   __ cmpl(index, Immediate(0));
   __ j(less, &out_of_object, Label::kNear);
   __ movp(object, FieldOperand(object,
                                index,
                                times_pointer_size,
                                JSObject::kHeaderSize));
   __ jmp(&done, Label::kNear);
 
   __ bind(&out_of_object);
   __ movp(object, FieldOperand(object, JSObject::kPropertiesOffset));
   __ negl(index);
   // Index is now equal to out of object property index plus 1.
   __ movp(object, FieldOperand(object,
                                index,
                                times_pointer_size,
                                FixedArray::kHeaderSize - kPointerSize));
   __ bind(deferred->exit());
   __ bind(&done);
 }
 
 
 #undef __
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_X64