[PATCH] D88420: [InstCombine] matchRotate - support non-uniform constant vector rotation amounts (PR46895)
Simon Pilgrim via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Mon Sep 28 10:05:10 PDT 2020
RKSimon added a comment.
I did wonder if a ConstantExpr::isUndef() help could be added to return a bool/vectorbool that could be then used to select the 'matching' values (e.g. undef + 1 -> 31 + 1 for i32 rotate).
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https://reviews.llvm.org/D88420/new/
https://reviews.llvm.org/D88420
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