tree 7a32fcdb1b20c44509e2a655b4e75a9b8ce2432b
parent 54e70ac7650f1c22f687937d1a082e4152f97b22
author Sagar Kulkarni <sagar.kulkarni1911@gmail.com> 1744420551 -0400
committer GitHub <noreply@github.com> 1744420551 +0300
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[mlir][vector] Prevent folding non memref-type gather into maskedload (#135371)

This patch fixes an issue in the FoldContiguousGather pattern which was
incorrectly folding vector.gather operations with contiguous indices
into vector.maskedload operations regardless of the base operand type.

While vector.gather operations can work on both tensor and memref types,
vector.maskedload operations are only valid for memref types. The
pattern was incorrectly lowering a tensor-based gather into a
masked-load, which is invalid.

This fix adds a type check to ensure the pattern only applies to
memref-based gather operations.

Co-authored-by: Sagar Kulkarni <sagar@rain.ai>