diff options
| author | Alyssa Rosenzweig <[email protected]> | 2019-09-27 15:43:18 -0400 |
|---|---|---|
| committer | Alyssa Rosenzweig <[email protected]> | 2019-09-30 08:40:13 -0400 |
| commit | 5a9a48b81a2521cef24e016229e3fbbcc00322eb (patch) | |
| tree | 183d40717695cb93f3cc99838fe3b30a6aba9830 /src/panfrost/midgard | |
| parent | 6284f3ec257159aecb9493a71e9d311af3b28b0f (diff) | |
pan/midgard: Add predicate->exclude
A bit of a kludge but allows setting an implicit dependency of synthetic
conditional moves on the actual condition, fixing code generated like:
vmul.feq r0, ..
sadd.imov r31, .., r0
vadd.fcsel [...]
The imov runs simultaneous with feq so it gets garbage results, but it's
too late to add an actual dependency practically speaking, since the new
synthetic imov doesn't have a node associated.
Signed-off-by: Alyssa Rosenzweig <[email protected]>
Diffstat (limited to 'src/panfrost/midgard')
| -rw-r--r-- | src/panfrost/midgard/midgard_schedule.c | 18 |
1 files changed, 14 insertions, 4 deletions
diff --git a/src/panfrost/midgard/midgard_schedule.c b/src/panfrost/midgard/midgard_schedule.c index 86a77149c78..4c72844679c 100644 --- a/src/panfrost/midgard/midgard_schedule.c +++ b/src/panfrost/midgard/midgard_schedule.c @@ -827,6 +827,9 @@ struct midgard_predicate { uint8_t *constants; unsigned constant_count; bool blend_constant; + + /* Exclude this destination (if not ~0) */ + unsigned exclude; }; /* For an instruction that can fit, adjust it to fit and update the constants @@ -893,6 +896,9 @@ mir_choose_instruction( if (tag != ~0 && instructions[i]->type != tag) continue; + if (predicate->exclude != ~0 && instructions[i]->dest == predicate->exclude) + continue; + /* Simulate in-order scheduling */ if ((signed) i < best_index) continue; @@ -930,7 +936,8 @@ mir_choose_bundle( struct midgard_predicate predicate = { .tag = ~0, - .destructive = false + .destructive = false, + .exclude = ~0 }; midgard_instruction *chosen = mir_choose_instruction(instructions, worklist, count, &predicate); @@ -950,7 +957,8 @@ mir_schedule_texture( { struct midgard_predicate predicate = { .tag = TAG_TEXTURE_4, - .destructive = true + .destructive = true, + .exclude = ~0 }; midgard_instruction *ins = @@ -974,7 +982,8 @@ mir_schedule_ldst( { struct midgard_predicate predicate = { .tag = TAG_LOAD_STORE_4, - .destructive = true + .destructive = true, + .exclude = ~0 }; midgard_instruction *ins = @@ -1003,7 +1012,8 @@ mir_schedule_alu( struct midgard_predicate predicate = { .tag = TAG_ALU_4, - .destructive = true + .destructive = true, + .exclude = ~0 }; midgard_instruction *ins = |