[llvm] [LoopVectorize] Enable more early exit vectorisation tests (PR #117008)

[David Sherwood via llvm-commits]

david-arm wrote:

> Looks like the test updates were not in sync with current `main`, pushed a fix [3e02038](https://github.com/llvm/llvm-project/commit/3e02038948abf60d5c9a600f0a08a2dd9223982a) to avoid the test failure

That's fast @fhahn - thank you! I was just about to look into it. I do normally rebase downstream and run `make check-all`, but for some reason I forgot today. Does rebasing the patch in github trigger new runs though? I don't entirely trust it to do the right thing.

https://github.com/llvm/llvm-project/pull/117008