[all-commits] [llvm/llvm-project] 9d5466: [SLP][NFC] Precommit test that exposes a bug in Sh...

[vptest1 via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 9d5466849a770eeab222d5a5890376d3596e8ad6
      https://github.com/llvm/llvm-project/commit/9d5466849a770eeab222d5a5890376d3596e8ad6
  Author: Vasileios Porpodas <vporpodas at google.com>
  Date:   2023-06-13 (Tue, 13 Jun 2023)

  Changed paths:
    A llvm/test/Transforms/SLPVectorizer/X86/shufflebuilder-bug.ll

  Log Message:
  -----------
  [SLP][NFC] Precommit test that exposes a bug in ShuffleBuilder.

ShuffleBuilder generates a zero mask here:
`[[TMP6:%.*]] = shufflevector <2 x float> [[TMP3]], <2 x float> poison, <4 x i32> zeroinitializer`
But the correct mask is `0,0,1,1`, or we should have reused `TMP4`.

Differential Revision: https://reviews.llvm.org/D152868