[llvm] [AMDGPU] Cgscc amdgpu attributor (PR #179719)

[Matt Arsenault via llvm-commits]

arsenm wrote:

> Some AMDGPU attributes are implemented with assumption that it can see all callsites (not necessarily a closed-world but similar at least based on the programming model we support), especially for those to propagate from leaves to kernels, which is not the case for CGSCC.

You mean the other way around? It's the kernels -> callees that depends on seeing the whole module 





https://github.com/llvm/llvm-project/pull/179719