[PATCH] D136672: [ExpandMemCmp][AArch64] Add a new option PreferCmpToExpand in inMemCmpExpansionOptions and enable on AArch64
Dave Green via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Tue Oct 25 03:18:27 PDT 2022
dmgreen added a reviewer: Allen.
dmgreen added a comment.
Is this the same as https://reviews.llvm.org/D136244? Looks like there are two tickets for the same issue.
They both solve it differently. D136244 <https://reviews.llvm.org/D136244> looks like it is more general - handling more cases then just bcmp. But this might optimize larger bcmp's? I think I would expect them to become a series of `cmp;ccmp;ccmp;ccmp` when optimized properly though.
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https://reviews.llvm.org/D136672/new/
https://reviews.llvm.org/D136672
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