[x64] simply tweak materialization of float/double constants

src/x64/macro-assembler-x64.h

Index: src/x64/macro-assembler-x64.h
diff --git a/src/x64/macro-assembler-x64.h b/src/x64/macro-assembler-x64.h
index 4667be128fccc0a3330ea21d9ebafcd4332d4c08..24eea383949527c3edb7df1e37f34a032884afe3 100644
--- a/src/x64/macro-assembler-x64.h
+++ b/src/x64/macro-assembler-x64.h
@@ -888,6 +888,9 @@ class MacroAssembler: public Assembler {
     movp(dst, reinterpret_cast<void*>(value.location()), rmode);
   }
 
+  void Move(XMMRegister dst, uint32_t src);
+  void Move(XMMRegister dst, uint64_t src);
+
   // Control Flow
   void Jump(Address destination, RelocInfo::Mode rmode);
   void Jump(ExternalReference ext);