[PATCH] D105390: [X86] Lower insertions into non-0'th 128-bit subvector as broadcast+blend (PR50971)

[Roman Lebedev via Phabricator via llvm-commits]

lebedev.ri updated this revision to Diff 356355.
lebedev.ri marked an inline comment as done.
lebedev.ri added a comment.

Add `broadcast(extract_vector_elt(x, 0)) -> broadcast(x)` fold, to address one more regression.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D105390/new/

https://reviews.llvm.org/D105390

Files:
  llvm/lib/Target/X86/X86ISelLowering.cpp
  llvm/test/CodeGen/X86/avx-cvt-3.ll
  llvm/test/CodeGen/X86/avx-intrinsics-fast-isel.ll
  llvm/test/CodeGen/X86/avx2-masked-gather.ll
  llvm/test/CodeGen/X86/avx512-insert-extract.ll
  llvm/test/CodeGen/X86/insertelement-shuffle.ll
  llvm/test/CodeGen/X86/masked_expandload.ll
  llvm/test/CodeGen/X86/masked_gather.ll
  llvm/test/CodeGen/X86/masked_load.ll

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