Jason Ekstrand
08bfd710a2
The liveness analysis pass is fairly expensive because it has to build large bit-sets and run a fix-point algorithm on them. Instead of requiring liveness for detecting if values escape a CF node, just take advantage of the structured nature of NIR and use block indices instead. This only requires the block index metadata which is the fastest we have metadata to generate. No shader-db changes on Kaby Lake Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com>
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