[PATCH] D20907: [IfConversion] Bugfix: don't add Undef flag on use if reg is live.

[Quentin Colombet via llvm-commits]

qcolombet added a comment.

Unless I wasn't clear, a register may be live across an instruction even if it is undef for that instruction.

Note: That probably mean that the definition of that register could be move further done to make the register dead for that use, but that is a different story.


http://reviews.llvm.org/D20907