| Index: src/x64/deoptimizer-x64.cc
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| diff --git a/src/x64/deoptimizer-x64.cc b/src/x64/deoptimizer-x64.cc
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| index 9e312ef3838f406f0443abb6fd8f6a760e0e53f5..0733602f1a9f063ac33c10e5942e8544b9b0f671 100644
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| --- a/src/x64/deoptimizer-x64.cc
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| +++ b/src/x64/deoptimizer-x64.cc
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| @@ -204,6 +204,11 @@ void Deoptimizer::DeoptimizeFunction(JSFunction* function) {
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|    node->set_next(data->deoptimizing_code_list_);
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|    data->deoptimizing_code_list_ = node;
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|  
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| +  // We might be in the middle of incremental marking with compaction.
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| +  // Tell collector to treat this code object in a special way and
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| +  // ignore all slots that might have been recorded on it.
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| +  isolate->heap()->mark_compact_collector()->InvalidateCode(code);
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| +
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|    // Set the code for the function to non-optimized version.
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|    function->ReplaceCode(function->shared()->code());
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|  
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| 
 |