[PATCH] D122900: [x86] Fix infinite loop inside DAG combiner lzcnt's optimization.

[pierre gousseau via Phabricator via llvm-commits]

pgousseau updated this revision to Diff 420464.
pgousseau retitled this revision from "[x86] Disable optimization involved in an infinite loop inside DAG combiner." to "[x86] Fix infinite loop inside DAG combiner lzcnt's optimization.".
pgousseau edited the summary of this revision.
pgousseau added a comment.

Remove unneeded Ret value check.


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

https://reviews.llvm.org/D122900

Files:
  llvm/lib/Target/X86/X86ISelLowering.cpp
  llvm/test/CodeGen/X86/lzcnt-zext-cmp.ll

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