Matt Arsenault 9843843c88 SelectionDAG: Do not propagate divergence through copy glue (#101210) ...

This fixes DAG divergence mishandling inline asm.

This was considering the glue nodes for divergence, when the
divergence should only come from the individual CopyFromRegs
that are glued. As a result, having any VGPR CopyFromRegs would
taint any uniform SGPR copies as divergent, resulting in SGPR
copies to VGPR virtual registers later.

2024-07-31 00:04:58 +04:00

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