[llvm-branch-commits] [mlir] [mlir][SCF] Fold unused `index_switch` results (PR #173560)

[Matthias Springer via llvm-branch-commits]

matthias-springer wrote:

> Part of it is folding constantOp into memref.store.

This is not part of the pattern. I just needed a side-effecting op in the test case.

> Part of it is the functionality of remove-dead-values, but I believe it ought to be implemented within remove-dead-values.

`remove-dead-values` indeed performs this kind of folding. I'm trying to remove this as part of #173505 and this PR is in preparation of that change. I am going to send an RFC for that soon.



https://github.com/llvm/llvm-project/pull/173560