[llvm] AMDGPU: Verify function type matches when matching libcalls (PR #119043)

[Matt Arsenault via llvm-commits]

arsenm wrote:

> > Any crash in the compiler cannot be a machine issue
> 
> I still wonder why I cannot reproduce it though.

Release vs release with asserts build?

https://github.com/llvm/llvm-project/pull/119043