Fix HInnerAllocatedObject to use an HValue for the offset.

src/hydrogen-instructions.cc

 // 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 3487 matching lines @@
   dominator_allocate->ClearNextMapWord(original_object_size);
 #endif
 
   dominator_allocate->clear_next_map_word_ = clear_next_map_word_;
 
   // After that replace the dominated allocate instruction.
   HInstruction* dominated_allocate_instr =
       HInnerAllocatedObject::New(zone,
                                  context(),
                                  dominator_allocate,
-                                 dominator_size_constant,
+                                 dominator_size,
                                  type());
   dominated_allocate_instr->InsertBefore(this);
   DeleteAndReplaceWith(dominated_allocate_instr);
   if (FLAG_trace_allocation_folding) {
     PrintF("#%d (%s) folded into #%d (%s)\n",
         id(), Mnemonic(), dominator_allocate->id(),
         dominator_allocate->Mnemonic());
   }
 }
 
@@ skipping 75 matching lines @@
           free_space_size,
       Representation::Smi(),
       filler_free_space_size_);
   filler_free_space_size_->UpdateValue(new_free_space_size);
 }
 
 
 void HAllocate::CreateFreeSpaceFiller(int32_t free_space_size) {
   ASSERT(filler_free_space_size_ == NULL);
   Zone* zone = block()->zone();
-  int32_t dominator_size =
-      HConstant::cast(dominating_allocate_->size())->GetInteger32Constant();
   HInstruction* free_space_instr =
       HInnerAllocatedObject::New(zone, context(), dominating_allocate_,
-      dominator_size, type());
+      dominating_allocate_->size(), type());
   free_space_instr->InsertBefore(this);
   HConstant* filler_map = HConstant::New(
       zone,
       context(),
       isolate()->factory()->free_space_map());
   filler_map->FinalizeUniqueness();  // TODO(titzer): should be init'd a'ready
   filler_map->InsertAfter(free_space_instr);
   HInstruction* store_map = HStoreNamedField::New(zone, context(),
       free_space_instr, HObjectAccess::ForMap(), filler_map);
   store_map->SetFlag(HValue::kHasNoObservableSideEffects);
@@ skipping 794 matching lines @@
       break;
     case kExternalMemory:
       stream->Add("[external-memory]");
       break;
   }
 
   stream->Add("@%d", offset());
 }
 
 } }  // namespace v8::internal