[all-commits] [llvm/llvm-project] b46575: [X86] Add PR54658 test case

[Simon Pilgrim via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: b465752f9281ae079936331d85e96225e25a1b7c
      https://github.com/llvm/llvm-project/commit/b465752f9281ae079936331d85e96225e25a1b7c
  Author: Simon Pilgrim <llvm-dev at redking.me.uk>
  Date:   2022-04-01 (Fri, 01 Apr 2022)

  Changed paths:
    M llvm/test/CodeGen/X86/vector-shuffle-512-v64.ll

  Log Message:
  -----------
  [X86] Add PR54658 test case


  Commit: 9afa6811ad9ea9ef3fccafb81f0f5ac48bf27927
      https://github.com/llvm/llvm-project/commit/9afa6811ad9ea9ef3fccafb81f0f5ac48bf27927
  Author: Simon Pilgrim <llvm-dev at redking.me.uk>
  Date:   2022-04-01 (Fri, 01 Apr 2022)

  Changed paths:
    M llvm/lib/Target/X86/X86ISelLowering.cpp
    M llvm/test/CodeGen/X86/vector-shuffle-512-v64.ll

  Log Message:
  -----------
  [X86] lowerShuffleAsRepeatedMaskAndLanePermute - allow 64-bit sublane shuffling on AVX512BW v64i8 shuffles

We were only performing this on 256-bit vectors on AVX2 targets

Noticed while triaging Issue #54658


Compare: https://github.com/llvm/llvm-project/compare/a5f637bcbb7d...9afa6811ad9e