[clang] [llvm] [AMDGPU][clang][CodeGen][opt] Add late-resolved feature identifying predicates (PR #134016)

[Erich Keane via llvm-commits]

https://github.com/erichkeane requested changes to this pull request.

The user interface design of these builtins is just completely unacceptable, and it has made the sema implementation more difficult than it needs to be.  

Best I can tell, the answer for even things like `decltype` changes whether it is in a conditional or not, which isn't right.



https://github.com/llvm/llvm-project/pull/134016