KonstantinSeurer
/
mesa
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

nir: Support upper bound of subgroup_id/num_subgroups for non-compute. 

These intrinsics will be used when lowering NGG shaders, including
currently supported stages like VS, TES, GS and also by mesh shaders
in the future.

Signed-off-by: Timur Kristóf <timur.kristof@gmail.com>
Reviewed-by: Daniel Schürmann <daniel@schuermann.dev>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/10740>
This commit is contained in:
Timur Kristóf 2021-04-23 08:46:18 +02:00 committed by Marge Bot
parent ac5ba2dfad
commit 9a2ffe1abb
1 changed files with 2 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
src/compiler/nir/nir_range_analysis.c
View File

@ -1339,12 +1339,12 @@ nir_unsigned_upper_bound(nir_shader *shader, struct hash_table *range_ht,
case nir_intrinsic_load_subgroup_id:
case nir_intrinsic_load_num_subgroups: {
uint32_t work_group_size = config->max_work_group_invocations;
if (!shader->info.cs.local_size_variable) {
if (shader->info.stage == MESA_SHADER_COMPUTE && !shader->info.cs.local_size_variable) {
work_group_size = shader->info.cs.local_size[0] *
shader->info.cs.local_size[1] *
shader->info.cs.local_size[2];
}
res = (work_group_size + config->min_subgroup_size - 1) / config->min_subgroup_size;
res = DIV_ROUND_UP(work_group_size, config->min_subgroup_size);
if (intrin->intrinsic == nir_intrinsic_load_subgroup_id)
res--;
break;