[PATCH] D129537: [X86][DAGISel] Don't widen shuffle element with AVX512

[Simon Pilgrim via Phabricator via llvm-commits]

RKSimon added inline comments.


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Comment at: llvm/test/CodeGen/X86/avx512-shuffles/shuffle-blend.ll:169
+; AVX512BW-NEXT:    vpsubb %xmm1, %xmm0, %xmm2 {%k1}
+; AVX512BW-NEXT:    vmovdqa %xmm2, %xmm0
+; AVX512BW-NEXT:    ret{{[l|q]}}
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regression? you might need to improve the 128-bit limit logic to account for vXi16 specifically


Repository:
  rG LLVM Github Monorepo

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  https://reviews.llvm.org/D129537/new/

https://reviews.llvm.org/D129537