Defer creating Handles for HConstants to the code generation phase.

src/x64/lithium-x64.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 509 matching lines @@
   return index;
 }
 
 
 void LChunk::AddGapMove(int index, LOperand* from, LOperand* to) {
   GetGapAt(index)->GetOrCreateParallelMove(
       LGap::START, zone())->AddMove(from, to, zone());
 }
 
 
-Handle<Object> LChunk::LookupLiteral(LConstantOperand* operand) const {
-  return HConstant::cast(graph_->LookupValue(operand->index()))->handle();
+HConstant* LChunk::LookupLiteral(LConstantOperand* operand) const {
+  return HConstant::cast(graph_->LookupValue(operand->index()));
 }
 
 
 Representation LChunk::LookupLiteralRepresentation(
     LConstantOperand* operand) const {
   return graph_->LookupValue(operand->index())->representation();
 }
 
 
 LChunk* LChunkBuilder::Build() {
@@ skipping 1827 matching lines @@
 LInstruction* LChunkBuilder::DoLoadFieldByIndex(HLoadFieldByIndex* instr) {
   LOperand* object = UseRegister(instr->object());
   LOperand* index = UseTempRegister(instr->index());
   return DefineSameAsFirst(new(zone()) LLoadFieldByIndex(object, index));
 }
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_X64