[PATCH] D121088: [AArch64] Concat zip1 and zip2 is a wider zip1
Dave Green via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Mon Mar 7 00:50:18 PST 2022
dmgreen created this revision.
dmgreen added reviewers: SjoerdMeijer, samtebbs, sdesmalen, jaykang10, efriedma.
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Given `concat(zip1(a, b), zip2(a, b))`, we can convert that to a 128bit `zip1(a, b)` if we widen a and b out first.
Fixes #54226
https://reviews.llvm.org/D121088
Files:
llvm/lib/Target/AArch64/AArch64ISelLowering.cpp
llvm/test/CodeGen/AArch64/arm64-zip.ll
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