X64: Tweak code generation slightly.

src/x64/deoptimizer-x64.cc

 // 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 647 matching lines @@
     __ lea(arg5, Operand(rsp, kSavedRegistersAreaSize + 2 * kPointerSize));
   }
 
   __ subq(arg5, rbp);
   __ neg(arg5);
 
   // Allocate a new deoptimizer object.
   __ PrepareCallCFunction(6);
   __ movq(rax, Operand(rbp, JavaScriptFrameConstants::kFunctionOffset));
   __ movq(arg1, rax);
-  __ movq(arg2, Immediate(type()));
+  __ Set(arg2, type());
   // Args 3 and 4 are already in the right registers.
 
   // On windows put the arguments on the stack (PrepareCallCFunction
   // has created space for this). On linux pass the arguments in r8 and r9.
 #ifdef _WIN64
   __ movq(Operand(rsp, 4 * kPointerSize), arg5);
   __ LoadAddress(arg5, ExternalReference::isolate_address());
   __ movq(Operand(rsp, 5 * kPointerSize), arg5);
 #else
   __ movq(r8, arg5);
@@ skipping 127 matching lines @@
   }
   __ bind(&done);
 }
 
 #undef __
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_X64