[PATCH] D21512: [InstSimplify] look through zexts of icmps to eliminate obviously false logic (PR27869)
Sanjay Patel via llvm-commits
llvm-commits at lists.llvm.org
Sun Jun 19 15:47:56 PDT 2016
spatel added a comment.
In http://reviews.llvm.org/D21512#461900, @majnemer wrote:
> Hmm. More generally, how about having and of zexts get treated as zext of ands?
I think we already do that, but the case in the bug report shows an example where one of the zexts is gone before we reach the and.
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