[llvm] [AMDGPU] Force the third source operand of the MAI instructions to VGPR if no AGPRs are used. (PR #69720)

[Jay Foad via llvm-commits]

jayfoad wrote:

> eaf85b9c28 "[AMDGPU] Select VGPR versions of MFMA if possible"

I can't find that commit. Is it upstream?

https://github.com/llvm/llvm-project/pull/69720