maxwell_3d: drop state register writes that keep the register's value

Title 1 makes ~6 million 3D register writes a second and ~60% of them write the value
the register already holds (counted with EDEN_NX2_GPU_PROFILE), most from macro memo
replays. For registers without side effects (not in execution_mask: draws, clears,
constant buffer data and binds, semaphores, ...) such a write changes nothing, but it
set dirty flags that made the next draw re-check that state. CallMethod and the sunk
writes now skip them after shadow RAM processing. Two profiled runs each: macro calls
169 ns instead of 185, draw setup 5.80 us instead of 5.95. EDEN_NX2_SKIP_SAME=0 turns it
off.

0 files changed, 0 insertions, 0 deletions