[all-commits] [llvm/llvm-project] ea3d0d: [VectorCombine] foldShuffleOfCastops - ensure we c...

[Simon Pilgrim via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: ea3d0db130b9a6c4678c11dd8bc48e5630624b62
      https://github.com/llvm/llvm-project/commit/ea3d0db130b9a6c4678c11dd8bc48e5630624b62
  Author: Simon Pilgrim <llvm-dev at redking.me.uk>
  Date:   2024-04-12 (Fri, 12 Apr 2024)

  Changed paths:
    M llvm/lib/Transforms/Vectorize/VectorCombine.cpp
    M llvm/test/Transforms/VectorCombine/X86/shuffle-of-casts.ll

  Log Message:
  -----------
  [VectorCombine] foldShuffleOfCastops - ensure we can scale shuffle masks between bitcasted vector types

Don't just assert that the src/dst vector element counts are multiples of one another - in general IR this can actually happen.

Reported by @mikaelholmen



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