[llvm] [LoopVectorize] LLVM fails to vectorise loops with multi-bool varables (PR #89226)

[Florian Hahn via llvm-commits]

fhahn wrote:

Could you split off the new tests in a separate PR so we can only see the test changes here? Also would probably be good to have at least some target specific tests to check cost modeling 

https://github.com/llvm/llvm-project/pull/89226