[PATCH] D25221: [PPC][DAGCombine] Convert SETCC to subtract when the result is zero extended

[Ehsan Amiri via llvm-commits]

amehsan added a comment.

Thanks Nemanja for comments on the testcase.

I will revise the tests. This patch originally being a draft to get feedback on the optimization approach, was not meant to provide finalized and exhaustive test.


https://reviews.llvm.org/D25221