Draft: aco/ra: add workaround for GFX11 D16 MTBUF instructions
What does this MR do and why?
aco/ra: add workaround for GFX11 D16 MTBUF instructions
The register use is not calculated correctly, and the hardware skips the instructions
if the last allocated VGPR is used. Reduce the bounds by 1 in this case.
Cc: mesa-stable
Closes: #11292 (closed)
Draft until confirmed.