broadcom/compiler: don't try to hide TMU latency at QPU scheduling
Based on empirical testing with Sponza and a few UE4 samples this is
consistently slightly benefitial for performance.
The most likely reason why this helps is that thrsw is probably
already quite effective at hiding latency and we are already trying
to hide latency at NIR scheduling and also via TMU pipelining, so
piling up on this when scheduling QPU typically ends up providing no
benefit at all for latency and is instead possibly preventing us to
unblock critical paths in the shader that depend on the TMU result,
requiring us to execute more cycles to complete the program.
Reviewed-by: Alejandro Piñeiro <apinheiro@igalia.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/17451>
1 file changed
