[llvm] [GVN] Load-store forwaring of scalable store to fixed load. (PR #124748)

[via llvm-commits]

iamlouk wrote:

> I think this could be straightforwardly generalized to the case where store >= load rather than store == load (in which case we don't need to know vscale exactly, just the minimum). In that case it's still correct to extract the prefix.

I just updated the MR and added that functionality.

https://github.com/llvm/llvm-project/pull/124748