[llvm] [AMDGPU] Add calling convention check in call lowering. (PR #86267)

[Matt Arsenault via llvm-commits]

arsenm wrote:

> Yeah, I am working towards a minimal example.

Shouldn't it be any amdgpu_gfx function calling ccc with inreg/SGPR arguments? 

> Will revert original change

Better to just finish the fix here?

https://github.com/llvm/llvm-project/pull/86267