Stanislav Mekhanoshin 4f90e75bdc [AMDGPU] Do not count implicit VGPRs in SIInsertWaitcnts (#109049) ...

When generating waitcounts before a use or def skip VGPRs. We never have
a real implicit VGPR operands on memory instructions, it is only for
super-reg liveness accounting.

Some other instructions (MOVRELS as an example) may have real implicit
VGPR uses though.

This is less then ideal but most of the problems observed with spills.

2024-09-25 00:41:49 -07:00

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