[all-commits] [llvm/llvm-project] 711df7: [vector][mlir] Restrict vector.shuffle to fixed-wi...

[Andrzej Warzyński via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 711df7b0ae4a9ea45e431d5c0ff4a0c8b2e732c1
      https://github.com/llvm/llvm-project/commit/711df7b0ae4a9ea45e431d5c0ff4a0c8b2e732c1
  Author: Andrzej Warzyński <andrzej.warzynski at arm.com>
  Date:   2024-04-16 (Tue, 16 Apr 2024)

  Changed paths:
    M mlir/include/mlir/Dialect/Vector/IR/VectorOps.td
    M mlir/test/Dialect/Vector/canonicalize.mlir
    M mlir/test/Dialect/Vector/invalid.mlir

  Log Message:
  -----------
  [vector][mlir] Restrict vector.shuffle to fixed-width vectors (#88733)

At the moment there is no support for vector.shuffle for scalable
vectors - various hooks/helpers related to `vector.shuffle` simply
ignore the scalable flags (e.g. ` ShuffleOp::inferReturnTypes`).

This is unlikely to change any time soon (vector shuffles are known to
be tricky for scalable vectors), hence this patch restricts
`vector.shuffle` to fixed width vectors.



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