diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/panfrost/midgard/midgard_schedule.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/src/panfrost/midgard/midgard_schedule.c b/src/panfrost/midgard/midgard_schedule.c index dea8b023e9d..8aaec6f8e43 100644 --- a/src/panfrost/midgard/midgard_schedule.c +++ b/src/panfrost/midgard/midgard_schedule.c @@ -898,7 +898,21 @@ mir_choose_instruction( signed best_index = -1; + /* Enforce a simple metric limiting distance to keep down register + * pressure. TOOD: replace with liveness tracking for much better + * results */ + + unsigned max_active = 0; + unsigned max_distance = 6; + BITSET_FOREACH_SET(i, tmp, worklist, count) { + max_active = MAX2(max_active, i); + } + + BITSET_FOREACH_SET(i, tmp, worklist, count) { + if ((max_active - i) >= max_distance) + continue; + if (tag != ~0 && instructions[i]->type != tag) continue; |