[PATCH] D68374: [X86] Add v32i8 shuffle lowering strategy to recognize two v4i64 vectors truncated to v4i8 and concatenated into the lower 8 bytes with undef/zero upper bytes.
Craig Topper via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Thu Oct 3 10:08:03 PDT 2019
craig.topper updated this revision to Diff 223050.
craig.topper added a comment.
Use simpler checks instead of loops.
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D68374/new/
https://reviews.llvm.org/D68374
Files:
llvm/lib/Target/X86/X86ISelLowering.cpp
llvm/test/CodeGen/X86/min-legal-vector-width.ll
llvm/test/CodeGen/X86/shuffle-vs-trunc-512.ll
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