[llvm-branch-commits] [llvm] AMDGPU: Replace unused update.dpp inputs with poison instead of undef (PR #131287)

[Jay Foad via llvm-branch-commits]

jayfoad wrote:

> We do it when the semantics allow it.

My concern is that it is not obvious when the semantics allow it, when you have a plethora of undocumented target intrinsics. I guess the grown-up solution is to document them properly.

https://github.com/llvm/llvm-project/pull/131287