[ia32] Better code generation for materialization of float/double constants.

src/ia32/macro-assembler-ia32.h

 // Copyright 2012 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.
 
 #ifndef V8_IA32_MACRO_ASSEMBLER_IA32_H_
 #define V8_IA32_MACRO_ASSEMBLER_IA32_H_
 
 #include "src/assembler.h"
 #include "src/bailout-reason.h"
 #include "src/frames.h"
@@ skipping 824 matching lines @@
   }
 
   // Move if the registers are not identical.
   void Move(Register target, Register source);
 
   // Move a constant into a destination using the most efficient encoding.
   void Move(Register dst, const Immediate& x);
   void Move(const Operand& dst, const Immediate& x);
 
   // Move an immediate into an XMM register.
-  void Move(XMMRegister dst, double val);
+  void Move(XMMRegister dst, uint32_t src);
+  void Move(XMMRegister dst, uint64_t src);
+  void Move(XMMRegister dst, double src) { Move(dst, bit_cast<uint64_t>(src)); }
 
   // Push a handle value.
   void Push(Handle<Object> handle) { push(Immediate(handle)); }
   void Push(Smi* smi) { Push(Handle<Smi>(smi, isolate())); }
 
   Handle<Object> CodeObject() {
     DCHECK(!code_object_.is_null());
     return code_object_;
   }
 
@@ skipping 251 matching lines @@
   }                                                                       \
   masm->
 #else
 #define ACCESS_MASM(masm) masm->
 #endif
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_IA32_MACRO_ASSEMBLER_IA32_H_