[llvm] DSE: lift limitation on sizes being non-scalable (PR #110670)

[Florian Hahn via llvm-commits]

fhahn wrote:

IIUC scalable vectors will in most cases only be introduced by LoopVectorize, so you might have to do LTO to have a chance to tigger this in practice?

https://github.com/llvm/llvm-project/pull/110670