[PATCH] D133855: [InstCombine] Baseline tests for folding ((x?1:4)&(y?1:4))==0 to x^y
Marc Auberer via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Wed Sep 14 05:48:26 PDT 2022
marcauberer created this revision.
marcauberer added reviewers: spatel, RKSimon.
Herald added a project: All.
marcauberer requested review of this revision.
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Fixes issue #57666: https://github.com/llvm/llvm-project/issues/57666
The optimization applies to all constant values that equal to zero when
applied to an bitwise and instruction.
Alive2: https://alive2.llvm.org/ce/z/EFnf-a
Minimalistic Goldbolt example: https://godbolt.org/z/3d6h9z4de
Repository:
rG LLVM Github Monorepo
https://reviews.llvm.org/D133855
Files:
llvm/test/Transforms/InstCombine/select_and_icmpeq.ll
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