[PATCH] D46799: [x86][eflags] Fix PR37431 by teaching the EFLAGS copy lowering to specifically handle SETB_C* pseudo instructions.

[Chandler Carruth via Phabricator via llvm-commits]

chandlerc updated this revision to Diff 146741.
chandlerc added a comment.

Fix a bug where we didn't explicitly zero-extend registers smaller than
32-bits. Thanks to Craig for pointing this out in review.


Repository:
  rL LLVM

https://reviews.llvm.org/D46799

Files:
  llvm/lib/Target/X86/X86FlagsCopyLowering.cpp
  llvm/test/CodeGen/X86/copy-eflags.ll
  llvm/test/CodeGen/X86/flags-copy-lowering.mir

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