[PATCH] D109807: [InstCombine] Narrow type of logical operation chains where one side is an extend
Usman Nadeem via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Tue Sep 14 20:33:55 PDT 2021
mnadeem created this revision.
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Reassociate chains of `extend(X) | (extend(Y) | Z)` --> `(extend(X) | extend(Y)) | Z`
which will then get optimized to --> `extend(X | Y) | Z`
Helps with vectorization.
Repository:
rG LLVM Github Monorepo
https://reviews.llvm.org/D109807
Files:
llvm/lib/Transforms/InstCombine/InstCombineAndOrXor.cpp
llvm/test/Transforms/InstCombine/and-xor-or.ll
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