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agx: only run early tests if needed

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if it'd be early anyway don't bother, speeds up dolphin with spec shaders

Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/27616>
This commit is contained in:
Alyssa Rosenzweig
2024-01-19 13:17:15 -04:00
committed by Marge Bot
parent 7825044c39
commit f836d573e4
1 changed files with 9 additions and 2 deletions
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11
src/asahi/compiler/agx_nir_lower_sample_mask.c
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@@ -206,8 +206,15 @@ bool
agx_nir_lower_sample_mask(nir_shader *shader, unsigned nr_samples) agx_nir_lower_sample_mask(nir_shader *shader, unsigned nr_samples)
{ {
if (shader->info.fs.early_fragment_tests) { if (shader->info.fs.early_fragment_tests) {
/* run tests early */ /* run tests early, if we need testing */
run_tests_at_start(shader); if (shader->info.fs.uses_discard ||
(shader->info.outputs_written &
(BITFIELD64_BIT(FRAG_RESULT_STENCIL) |
BITFIELD64_BIT(FRAG_RESULT_DEPTH))) ||
shader->info.writes_memory) {
run_tests_at_start(shader);
}
} else if (shader->info.fs.uses_discard) { } else if (shader->info.fs.uses_discard) {
/* sample_mask can't be used with zs_emit, so lower sample_mask to zs_emit. /* sample_mask can't be used with zs_emit, so lower sample_mask to zs_emit.
* We ignore depth/stencil writes with early fragment testing though. * We ignore depth/stencil writes with early fragment testing though.