[llvm] [ExpandMemCmp] Optimize ExpandMemCmp to reduce instruction count on x86 (PR #69609)
Igor Kirillov via llvm-commits
llvm-commits at lists.llvm.org
Thu Oct 19 08:49:39 PDT 2023
igogo-x86 wrote:
> Wouldn't that byte swap the zeros that were added by the zext into the LSBs? I don't know this code, but that seems weird.
Yeah, they would, but since they are zeroes, they wouldn't affect the comparison result.
https://github.com/llvm/llvm-project/pull/69609
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