[Mlir-commits] [mlir] [mlir][scf] Add simple LICM pattern for `scf.while` (PR #76370)

[Ivan Butygin]

Hardcode84 wrote:

> I don't think LICM should belong to canonicalization. LICM is not always good for code quality as it may increase register pressure so applying it blindly during canonicalization seems dangerous.

This is true for general loops, but for the `before` block it should be ok IMO, as it always executed at least once.

https://github.com/llvm/llvm-project/pull/76370