[llvm] RFC: [AMDGPU] Select CONVERGENCECTRL_GLUE generically (PR #87509)

[Sameer Sahasrabuddhe via llvm-commits]

ssahasra wrote:

@jayfoad, what's the plan for this change? Do you intend to put `SDNPOptInGlue` on all convergent ops in the TD files?

https://github.com/llvm/llvm-project/pull/87509