r600: Use nir-to-tgsi instead of TGSI when the NIR debug opt is disabled.
For !8044 (merged) I'm working on getting all drivers to accept NIR. The NIR compiler in the driver is apparently not quite ready, so use NIR-to-TGSI instead. This is a net win in testcases working on my RV770 and Turks cards (especially in some important piglit tests involving YUV dma-buf decode), though it's not regression-free.
shader-db (R600):
total dw in shared programs: 8553412 -> 8358918 (-2.27%)
dw in affected programs: 7476702 -> 7282208 (-2.60%)
total gprs in shared programs: 217286 -> 213217 (-1.87%)
gprs in affected programs: 72747 -> 68678 (-5.59%)
total loops in shared programs: 398 -> 330 (-17.09%)
loops in affected programs: 68 -> 0
total cf in shared programs: 558835 -> 332768 (-40.45%)
cf in affected programs: 420475 -> 194408 (-53.76%)
shader-db (Turks):
total dw in shared programs: 14104598 -> 13556782 (-3.88%)
dw in affected programs: 12161972 -> 11614156 (-4.50%)
total gprs in shared programs: 321068 -> 313690 (-2.30%)
gprs in affected programs: 114899 -> 107521 (-6.42%)
total loops in shared programs: 736 -> 651 (-11.55%)
loops in affected programs: 111 -> 26 (-76.58%)
total cf in shared programs: 925771 -> 581226 (-37.22%)
cf in affected programs: 678600 -> 334055 (-50.77%)
total stack in shared programs: 27853 -> 27855 (<.01%)
stack in affected programs: 5 -> 7 (40.00%)
glmark2 terrain: 0.137649% +/- 0.0511938% (n=6)
glmark2 jellyfish: no change (n=8)
unigine valley (extreme) 5.36 -> 5.45 (n=1 it takes so long to run)
unigine heaven (basic) 16.13 -> 16.15 (n=1)
TODO:
-
Test on doubles -
Fix GS regression on EG -
Fix image load/store flakiness on EG -
Re-test on RV770 -
Get shader-db results