[PATCH] D149577: [InstCombine] Improve bswap optimization
Noah Goldstein via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Mon May 1 11:11:14 PDT 2023
goldstein.w.n added inline comments.
================
Comment at: llvm/lib/Transforms/InstCombine/InstCombineCalls.cpp:1632
+ // --> bswap(bswap(logic_op(x, y)))
+ if (Value * V; match(IIOperand, m_BSwap(m_Value(V)))) {
+ return replaceInstUsesWith(CI, V);
----------------
nit, but since we already have the scope for `::bswap` case, can you just declare `V` before the match.
Repository:
rG LLVM Github Monorepo
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D149577/new/
https://reviews.llvm.org/D149577
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