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Rob Clark authored
Prep work for a following patch, that introduces a cache to map from program state (all shader stages) plus variant key to pre-baked hw state (which could be emit'd via CP_SET_DRAW_STATE, for example). To do that, we really want the variant key to be immutable, and to treat the binning pass shader as an extra shader stage, rather than as a VS variant. Signed-off-by: Rob Clark <robdclark@gmail.com>
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