[PATCH] D141829: Reapply [AArch64] fold subs ugt/ult to ands when the second operand is mask/pow2
chenglin.bi via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Tue Jan 17 21:56:04 PST 2023
bcl5980 added a comment.
In D141829#4061077 <https://reviews.llvm.org/D141829#4061077>, @chapuni wrote:
> btw, was it not handled by instcombine?
Not handled by instcombine is because AArch64 has tst instruction that instcombine need two instruction to do that.
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https://reviews.llvm.org/D141829/new/
https://reviews.llvm.org/D141829
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