[llvm] [FuzzMutate] Match the callee's and callsite's calling conventions. (PR #139100)

[Peter Rong via llvm-commits]

DataCorrupted wrote:

> > @mgcarrasco Just curious what is your use case of FuzzMutate / IRFuzzer?
> 
> @DataCorrupted I'm currently working on fuzzing the AMDGPU backend. Thanks for your reviews!

Awesome, I hope your experience is good. Please don't hesitate to reach out if you need anything, I'd love to help.

https://github.com/llvm/llvm-project/pull/139100