[llvm] AMDGPU: Add target feature for aligned VGPR requirement (PR #155336)

[Stanislav Mekhanoshin via llvm-commits]

https://github.com/rampitec approved this pull request.

I do not like it too, and probably this is not the only place we have to check it. But that's right, this is the right thing to do.

https://github.com/llvm/llvm-project/pull/155336