[llvm] [ValueTracking] Fix "getOperand() out of range!" assertion crash (PR #87482)

[Nikita Popov via llvm-commits]

nikic wrote:

@vedantparanjape-amd The issue should already be fixed by https://github.com/llvm/llvm-project/pull/90489 -- do you still see problems?

https://github.com/llvm/llvm-project/pull/87482