Filler sizes have to be Smis, fix x64 breakage.

src/hydrogen-instructions.h

 // Copyright 2012 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 3228 matching lines @@
   DECLARE_INSTRUCTION_FACTORY_P1(HConstant, int32_t);
   DECLARE_INSTRUCTION_FACTORY_P2(HConstant, int32_t, Representation);
   DECLARE_INSTRUCTION_FACTORY_P1(HConstant, double);
   DECLARE_INSTRUCTION_FACTORY_P1(HConstant, Handle<Object>);
   DECLARE_INSTRUCTION_FACTORY_P2(HConstant, Handle<Map>, UniqueValueId);
   DECLARE_INSTRUCTION_FACTORY_P1(HConstant, ExternalReference);
 
   static HConstant* CreateAndInsertAfter(Zone* zone,
                                          HValue* context,
                                          int32_t value,
+                                         Representation representation,
                                          HInstruction* instruction) {
-    HConstant* new_constant = HConstant::New(zone, context, value);
+    HConstant* new_constant =
+        HConstant::New(zone, context, value, representation);
     new_constant->InsertAfter(instruction);
     return new_constant;
   }
 
   static HConstant* CreateAndInsertBefore(Zone* zone,
                                           HValue* context,
                                           int32_t value,
+                                          Representation representation,
                                           HInstruction* instruction) {
-    HConstant* new_constant = HConstant::New(zone, context, value);
+    HConstant* new_constant =
+        HConstant::New(zone, context, value, representation);
     new_constant->InsertBefore(instruction);
     return new_constant;
   }
 
   Handle<Object> handle() {
     if (handle_.is_null()) {
       Factory* factory = Isolate::Current()->factory();
       // Default arguments to is_not_in_new_space depend on this heap number
       // to be tenured so that it's guaranteed not be be located in new space.
       handle_ = factory->NewNumber(double_value_, TENURED);
@@ skipping 3574 matching lines @@
   virtual bool IsDeletable() const V8_OVERRIDE { return true; }
 };
 
 
 #undef DECLARE_INSTRUCTION
 #undef DECLARE_CONCRETE_INSTRUCTION
 
 } }  // namespace v8::internal
 
 #endif  // V8_HYDROGEN_INSTRUCTIONS_H_