[Mlir-commits] [mlir] [mlir][scf] `scf.while` uplifting: Add preparation patterns. (PR #89222)

[Ivan Butygin]

Hardcode84 wrote:

> That seems quite inefficient, why can't we sink whatever needs to be sunk?

It's possible, but current logic for selecting candidates and updating `scf.while` block args/results is already quite convoluted, and it easier to reason when it single op at the time.

https://github.com/llvm/llvm-project/pull/89222