| Index: src/hydrogen.cc
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| diff --git a/src/hydrogen.cc b/src/hydrogen.cc
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| index 6875f99bd7e5a765388f70b20b55a9567c8fae6d..f7259bb04993946c433a38f063290c9c883518d2 100644
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| --- a/src/hydrogen.cc
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| +++ b/src/hydrogen.cc
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| @@ -4554,7 +4554,8 @@ HInstruction* HOptimizedGraphBuilder::BuildStoreNamedField(
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|  
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|    if (transition_to_field) {
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|      Handle<Map> transition(lookup->GetTransitionMapFromMap(*map));
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| -    instr->SetTransition(transition, top_info());
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| +    HConstant* transition_constant = Add<HConstant>(transition);
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| +    instr->SetTransition(transition_constant, top_info());
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|      // TODO(fschneider): Record the new map type of the object in the IR to
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|      // enable elimination of redundant checks after the transition store.
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|      instr->SetGVNFlag(kChangesMaps);
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| 
 |