[Mlir-commits] [mlir] [mlir][ArmSME] fix f64 scalable matmul crashes in `VectorLegalizationPass` (PR #207947)

[Andrzej Warzyński]

banach-space wrote:

> This PR simply fix what we identified in [iree-org/iree#24689](https://github.com/iree-org/iree/issues/24689).
> 
> **Note**: the new test did not pass the checks prior to this PR 🫶
> 
> @banach-space @egebeysel @AGindinson

Kind requests for future PRs:

* “This PR simply fix what we identified in [iree-org/iree#24689](https://github.com/iree-org/iree/issues/24689).” - Since LLVM is a separate project, could you make sure that every change is self-contained, including the commit/PR summary, and does not require following links to issues in other projects? In this case, I do not know what the original issue was or what exactly this PR fixes.
* “Note: the new test did not pass the checks prior to this PR 🫶” — Could you be more specific about what happened? For example, did it crash, fail verification, or produce incorrect output? These are different failure modes and it would be helpful to capture that in the summary.

I do not want to come across as gatekeeping `Vector` patches. Quite the opposite: once a patch has enough approval, I do not think every Vector maintainer needs to sign off. That said, please make sure that each change is self-contained and that the summary provides the relevant context and rationale.

Thank you for fixing this!

https://github.com/llvm/llvm-project/pull/207947