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nir/shrink_vec_array_vars: detect zero init shared memory using constant initializer

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More consistent.

Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/36956>
This commit is contained in:
Georg Lehmann 2025-08-23 15:10:13 +02:00 • committed by Marge Bot
parent edc5bea61e
commit 047b95a8c3
1 changed files with 5 additions and 2 deletions
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7
src/compiler/nir/nir_split_vars.c
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@ -1373,8 +1373,11 @@ shrink_vec_var_list(nir_shader *shader,
if (!usage)
continue;
/* Zero inited shared memory is always written. */
bool zero_init = var->data.mode == nir_var_mem_shared && shader->info.zero_initialize_shared_memory;
/* Zero inited shared memory is always written.
* All other initializer should be lowered before this pass.
*/
assert(!var->constant_initializer || var->constant_initializer->is_null_constant);
bool zero_init = var->constant_initializer;
assert(usage->comps_kept == 0);
if (usage->has_external_copy || usage->has_complex_use)
usage->comps_kept = usage->all_comps;