llvm-project

b7ec10ca - [AMDGPU] Update GCNHazardRecognizer's understanding of gfx12 waitcount instructions (#153880)

[AMDGPU] Update GCNHazardRecognizer's understanding of gfx12 waitcount instructions (#153880) This simply updates the pass's cognizance of these instructions, and for the most part the hazards where they might be encountered do not exist for gfx12. Nonetheless, encountering them has to be checked for as doing so would indicate a compiler error. Co-authored-by: Stephen Thomas <Stephen.Thomas@amd.com> --------- Co-authored-by: Stephen Thomas <Stephen.Thomas@amd.com>