[PATCH] D64707: [x86] try harder to form LEA from ADD to avoid flag conflicts (PR40483)

Craig Topper via Phabricator via llvm-commits llvm-commits at lists.llvm.org
Mon Jul 15 16:06:23 PDT 2019


craig.topper added a comment.

Are the multiply test changes due to the flags being used by seto? But seto usage should never be in danger of creating the instruction duplication we're seeing in the motivating case. It does look like we're getting an improvement on those tests, but not for the reason we're selecting LEA.


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https://reviews.llvm.org/D64707





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