llvm-project

20dba979 - [AMDGPU] Add target features to guard DPP controls (#182391)

[AMDGPU] Add target features to guard DPP controls (#182391) This patch adds target features: - `+dpp-wavefront-shifts`, for DPP `wave_shl/rol/shr/ror` - `+dpp-row-bcast`, for DPP `row_bcast15/31` These DPP controls are not available in gfx10+, so these target features enable `AMDGPURemoveIncompatibleFunctions` to remove functions that rely on these controls when compiling for newer GPUs.