radv: perform nir_opt_access before the first radv_optimize_nir
Two lowered loads might not be CSE'd after nir_lower_explicit_io if one of
them is shrinked. This doesn't happen for deref loads, but it needs the
CAN_REORDER flag first.
fossil-db (gfx1201):
Totals from 556 (0.70% of 79377) affected shaders:
MaxWaves: 14936 -> 14940 (+0.03%); split: +0.05%, -0.03%
Instrs: 2140334 -> 2140942 (+0.03%); split: -0.07%, +0.10%
CodeSize: 11137948 -> 11145416 (+0.07%); split: -0.07%, +0.13%
SpillSGPRs: 2385 -> 2527 (+5.95%); split: -0.34%, +6.29%
Latency: 12310570 -> 12305011 (-0.05%); split: -0.08%, +0.04%
InvThroughput: 2136142 -> 2135516 (-0.03%); split: -0.06%, +0.03%
VClause: 47419 -> 47420 (+0.00%); split: -0.01%, +0.01%
SClause: 58423 -> 58290 (-0.23%); split: -0.36%, +0.14%
Copies: 160626 -> 161321 (+0.43%); split: -0.25%, +0.68%
Branches: 69693 -> 69710 (+0.02%); split: -0.04%, +0.06%
PreSGPRs: 34824 -> 34945 (+0.35%); split: -0.24%, +0.58%
PreVGPRs: 28682 -> 28649 (-0.12%); split: -0.36%, +0.24%
VALU: 1080800 -> 1081171 (+0.03%); split: -0.04%, +0.08%
SALU: 353112 -> 353770 (+0.19%); split: -0.15%, +0.34%
SMEM: 81587 -> 81364 (-0.27%)
Signed-off-by: Rhys Perry <pendingchaos02@gmail.com>
Reviewed-by: Georg Lehmann <dadschoorse@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/34162>
Rhys Perry
2704a30df0