[llvm] [LSR] Narrow search space by merging users outside and inside loop (PR #202676)

[John Brawn via llvm-commits]

john-brawn-arm wrote:

> AI generated test case:

Thanks for this. I've updated to fix this, and also added this test to use-outside-loop-crash.ll

https://github.com/llvm/llvm-project/pull/202676