llvm-project

15428e0d - [AMDGPU] Add support for point sample accel out of order returns (#127991)

[AMDGPU] Add support for point sample accel out of order returns (#127991) Add target feature for point sample acceleration and enable it for relevant targets. Also add support to insert waitcnts where required when point sample accel may have occurred. This has implications for out of order returns, which is why extra waitcnts are required. Add a VMEM_NOSAMPLER bit in the register masks to determine when waitcnt is required.