llvm-project

04bb3818 - AMDGPU: Fix mfma agpr allocation failures with -O0

AMDGPU: Fix mfma agpr allocation failures with -O0 Previously we were getting lucky on cases that can use AV registers with the normal optimization pipeline. I do not understand what the check against getAddressableNumArchVGPRs was doing here. This logic needs to be consistent with getMaxNumVectorRegs, as that is what getReservedRegs to determine the AGPR budget. In the future we should directly check the minimum AGPR budget, and individual selection patterns need to know the minimum budget required for them.