MaheshRavishankar 4cf9bf6c9f [mlir][MemRef] Compute unused dimensions of a rank-reducing subviews using strides as well.
For `memref.subview` operations, when there are more than one
unit-dimensions, the strides need to be used to figure out which of
the unit-dims are actually dropped.

Differential Revision: https://reviews.llvm.org/D109418
2021-09-20 11:05:30 -07:00
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