| Index: src/ic/x64/ic-x64.cc
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| diff --git a/src/ic/x64/ic-x64.cc b/src/ic/x64/ic-x64.cc
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| index 0309961d62853648c712852a272eda98dc4d3609..fda1d1bcb2fc02de917059248622d4dc430d5da2 100644
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| --- a/src/ic/x64/ic-x64.cc
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| +++ b/src/ic/x64/ic-x64.cc
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| @@ -451,7 +451,7 @@ static void KeyedStoreGenerateMegamorphicHelper(
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|    __ JumpIfDictionaryInPrototypeChain(receiver, rdi, kScratchRegister, slow);
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|  
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|    __ bind(&fast_double_without_map_check);
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| -  __ StoreNumberToDoubleElements(value, rbx, key, xmm0,
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| +  __ StoreNumberToDoubleElements(value, rbx, key, kScratchDoubleReg,
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|                                   &transition_double_elements);
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|    if (increment_length == kIncrementLength) {
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|      // Add 1 to receiver->length.
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| 
 |