[MLIR][Linalg] Scalable Vectorization of Reduction on the Trailing Dimension (#97788)

Allow scalable vectorization of linalg::reduce and linalg::generic that has
reduction iterator(s) with two restrictions:
1. The reduction dim is the last (innermost) dim of the op; and
2. Only the reduction dim is requested for scalable vectorization.

One exception is that scalable vectorization of the reduction dim in
Matmul-like ops are not supported even above restrictions are met.

Allowed combinations of scalable flags and iterator types:
Matmul:
        Iterators: ["parallel", "parallel", "reduction"]
Scalable Flags: ["true",     "true",     "false"]
                       ["false",    "true",     "false"]
Matvec:
        Iterators: ["parallel", "reduction"]
Scalable Flags: ["false",    "true"]
                       ["true",     "false"]

0 files changed, 0 insertions, 0 deletions