[llvm] [AMDGPU] promote i1 arg type for admgpu_cs (PR #82971)

[Matt Arsenault via llvm-commits]

arsenm wrote:

> fixes #68087 Not sure where to put regression tests for this pr? Also, should i1 args not in reg also be promoted?

test/CodeGen/AMDGPU/calling-conventions.ll is probably the best bet right now (although I'm not happy with how these tests are organized)

Both inreg and not inreg should be promoted. The inreg just flips from VGPR to SGPR.



https://github.com/llvm/llvm-project/pull/82971