[all-commits] [llvm/llvm-project] b3eaf4: [X86] lowerShuffleAsVTRUNC - improve detection of ...

[Simon Pilgrim via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: b3eaf401667c111de4222b3a4e1ba9ff425360b2
      https://github.com/llvm/llvm-project/commit/b3eaf401667c111de4222b3a4e1ba9ff425360b2
  Author: Simon Pilgrim <llvm-dev at redking.me.uk>
  Date:   2022-12-14 (Wed, 14 Dec 2022)

  Changed paths:
    M llvm/lib/Target/X86/X86ISelLowering.cpp
    M llvm/test/CodeGen/X86/shuffle-strided-with-offset-256.ll
    M llvm/test/CodeGen/X86/shuffle-strided-with-offset-512.ll
    M llvm/test/CodeGen/X86/vector-interleaved-load-i16-stride-2.ll
    M llvm/test/CodeGen/X86/vector-interleaved-load-i16-stride-4.ll
    M llvm/test/CodeGen/X86/vector-interleaved-load-i8-stride-2.ll
    M llvm/test/CodeGen/X86/vector-interleaved-load-i8-stride-4.ll
    M llvm/test/CodeGen/X86/vector-interleaved-load-i8-stride-8.ll
    M llvm/test/CodeGen/X86/x86-interleaved-access.ll

  Log Message:
  -----------
  [X86] lowerShuffleAsVTRUNC - improve detection of cheap/free vector concatenation

Handle the case where the lo/hi subvectors are a split load.