[PATCH] D122900: [x86] Disable optimization involved in an infinite loop inside DAG combiner.

[Simon Pilgrim via Phabricator via llvm-commits]

RKSimon added inline comments.


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Comment at: llvm/lib/Target/X86/X86ISelLowering.cpp:47665
 
   if (Ret)
     Ret = DAG.getNode(ISD::ZERO_EXTEND, SDLoc(N), N->getValueType(0), Ret);
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Is Ret ever null at this point?


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D122900/new/

https://reviews.llvm.org/D122900