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

[David Sherwood via llvm-commits]

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+; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 4
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david-arm wrote:

Or just take the simplest option of having two commits in this patch. Commit 1 - add tests, Commit 2 - add the code change which shows the test changes.

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