[llvm] [LV]Process alloca in isPredicatedInst for tail-folded analysis. (PR #101743)

[Alexey Bataev via llvm-commits]

alexey-bataev wrote:

> LGTM, thanks should definitely not crash. Would Be interesting to know if there are any real world cases where alloca are in the loop body to double check we are doing the right thing in general

The test itself is a reduced version from llvm-test-suite, compiled with folded tail.

https://github.com/llvm/llvm-project/pull/101743