[PATCH] D54593: [X86] Fix PR39658: avoid duplicated successors in condibr merge

[Rong Xu via Phabricator via llvm-commits]

xur created this revision.
xur added a reviewer: andreadb.

This is to fix PR39658 where duplicated successors (and phi operands) causing miscompile.


https://reviews.llvm.org/D54593

Files:
  lib/Target/X86/X86CondBrFolding.cpp
  test/CodeGen/X86/pr39658.ll

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