lavapipe: run nir_opt_copy_prop_vars during optimization loop
this enables better elimination of operations
fixes: dEQP-VK.graphicsfuzz.spv-stable-mergesort-flatten-selection-dead-continues
fixes #5458 (closed)
cc: mesa-stable
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this enables better elimination of operations
fixes: dEQP-VK.graphicsfuzz.spv-stable-mergesort-flatten-selection-dead-continues
fixes #5458 (closed)
cc: mesa-stable