Stanislav Mekhanoshin aeaf85b9c2 [AMDGPU] Select VGPR versions of MFMA if possible ...

We can select _vgprcd versions of MAI instructions and have no
AGPRs with the whole budget left for VGPRs if:

1. This is a kernel;
2. It has no calls;
3. It runs at least on 2 waves thus having not more that 256 VGPRs.
4. There is no inline asm requesting AGPRs.

Differential Revision: https://reviews.llvm.org/D117253

2022-02-08 10:19:41 -08:00

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