[llvm] [SCEV] Compute predicated backedge-taken count for non-unit-stride loops (PR #208581)

[Bavly Peter via llvm-commits]

bavly-bob wrote:

I’m investigating the failing tests, and most of them seem to be failing in `howManyGreaterThans`, which my patch doesn’t directly touch. I’m not sure yet whether this is indirectly caused by my changes, so I could use some help understanding how to investigate this part.


https://github.com/llvm/llvm-project/pull/208581