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pan/bifrost: Make CSE independent of liveliness labels

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CSE should not depend on liveliness analysis.  When the pass runs the
only possible liveliness analysis that is run is on the bi_validate
path, having a dependency only makes our validated runs different (and
slower) than the unvalidated runs.

Signed-off-by: Lorenzo Rossi <lorenzo.rossi@collabora.com>
Found-by: Ryan Zhang <ryan.zhang@nxp.com>
Reviewed-by: Ryan Zhang <ryan.zhang@nxp.com>
Reviewed-by: Eric R. Smith <eric.smith@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/41504>
This commit is contained in:
Lorenzo Rossi 2026-05-12 12:19:19 +02:00 • committed by Marge Bot
parent 0a4b7f69c1
commit 5fd3f27406
1 changed files with 3 additions and 0 deletions
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3
src/panfrost/compiler/bifrost/bi_opt_cse.c
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@ -84,6 +84,9 @@ instrs_equal(const void *_i1, const void *_i2)
bi_foreach_src(i1, s) {
bi_index s1 = i1->src[s], s2 = i2->src[s];
/* kill_ssa is a liveness annotation, not part of instruction semantics */
s1.kill_ssa = s2.kill_ssa = false;
if (memcmp(&s1, &s2, sizeof(s1)) != 0)
return false;
}