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nir: add nir_ssa_def_is_unused()

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Signed-off-by: Rhys Perry <pendingchaos02@gmail.com>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/8784>
This commit is contained in:
Rhys Perry
2021-02-02 16:00:53 +00:00
committed by Marge Bot
parent 0d80dc1588
commit ed9c3c4f19
8 changed files with 15 additions and 13 deletions
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src/compiler/nir/nir_from_ssa.c
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@@ -548,7 +548,7 @@ rewrite_ssa_def(nir_ssa_def *def, void *void_state)
}
nir_ssa_def_rewrite_uses(def, nir_src_for_reg(reg));
assert(list_is_empty(&def->uses) && list_is_empty(&def->if_uses));
assert(nir_ssa_def_is_unused(def));
if (def->parent_instr->type == nir_instr_type_ssa_undef) {
/* If it's an ssa_undef instruction, remove it since we know we just got