[Mlir-commits] [mlir] [mlir][linalg] Fix partial fuse by collapse (PR #136326)

[Ian Wood]

IanWood1 wrote:

The generic op gets replaced with and expand shape: `generic -> collapse_shape` to `collapsed generic -> expand -> collapse` preventing an infinite loop. >From the pattern rewrite docs:

>The root operation is required to either be: updated in-place, replaced, or erased.

Is changing an operand considered updating? If not, this pattern could be rooted on the generic op.

https://github.com/llvm/llvm-project/pull/136326