[PATCH] D57637: [X86] Lower ISD::UADDO to use the Z flag instead of C flag when the RHS is a constant 1 to encourage INC formation.

[Craig Topper via Phabricator via llvm-commits]

craig.topper added a comment.

The combineCarryThroughADD prevents some regressions from the getX86XALUOOp change. But I think it picked up a change to at least codegen-prepare-uaddo.ll by itself. I can commit the combineCarryThroughADD separately first if you want.


Repository:
  rL LLVM

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D57637/new/

https://reviews.llvm.org/D57637