[llvm] [NewGVN] Check intrinsic ID before accessing operands (PR #141571)

[Mariusz Sikora via llvm-commits]

mariusz-sikora-at-amd wrote:

> > This patch is fixing assertions in downstream tests
> 
> Would it be possible to add the test?

Yes, I will try to prepare a small test in a moment.

https://github.com/llvm/llvm-project/pull/141571