[clang] [llvm] AMDGPU: Add llvm.amdgcn.s.wait.event intrinsic (PR #180170)

[Joseph Huber via cfe-commits]

jhuber6 wrote:

> gfx11 -> gfx12 broke compatabilty in a weird way, by inverting the
> interpretation of the bit but also shifting the used bit by 1. Simplify
> the selection of the old intrinsic by just using the magic number 2, which
> should satisfy both cases.

Is this something that we can't just change in instruction selection to keep it consistent?

https://github.com/llvm/llvm-project/pull/180170