Christopher Bate 99069ab212 [mlir][linalg] fix crash when promoting rank-reducing memref.subviews
This change adds support for promoting `linalg` operation operands that
are produced by rank-reducing `memref.subview` ops.

Differential Revision: https://reviews.llvm.org/D127086
2022-06-06 12:06:36 -06:00
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