[llvm] Adding change to IndVarSimplify pass to optimize IVs stuck in trivial vector operations (PR #122248)

[via llvm-commits]

anilavakundu007 wrote:

> Kind of related issue is #121796. I haven't tried to understand what your transform is doing, but probably an easier / more general fix is to teach SCEV to look through some vector operations.

I had looked through the SCEV implementation and it appears to bail out on extractelement Instructions if I remember correctly

https://github.com/llvm/llvm-project/pull/122248