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iris: avoid issues with undefined clip distance

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Cc: mesa-stable
Closes: https://gitlab.freedesktop.org/mesa/mesa/-/issues/9797
Signed-off-by: Tapani Pälli <tapani.palli@intel.com>
Reviewed-by: Sagar Ghuge <sagar.ghuge@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/25177>
(cherry picked from commit d6d73aae4f)
This commit is contained in:
Tapani Pälli 2023-09-12 12:45:47 +03:00 • committed by Dylan Baker
parent 32ff84911b
commit f35d00a75a
2 changed files with 9 additions and 7 deletions
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2
.pick_status.json
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@ -1284,7 +1284,7 @@
"description": "iris: avoid issues with undefined clip distance",
"nominated": true,
"nomination_type": 0,
"resolution": 0,
"resolution": 1,
"main_sha": null,
"because_sha": null,
"notes": null

14
src/gallium/drivers/iris/iris_program.c
View file

@ -1307,12 +1307,14 @@ iris_compile_vs(struct iris_screen *screen,
if (key->vue.nr_userclip_plane_consts) {
nir_function_impl *impl = nir_shader_get_entrypoint(nir);
nir_lower_clip_vs(nir, (1 << key->vue.nr_userclip_plane_consts) - 1,
true, false, NULL);
nir_lower_io_to_temporaries(nir, impl, true, false);
nir_lower_global_vars_to_local(nir);
nir_lower_vars_to_ssa(nir);
nir_shader_gather_info(nir, impl);
/* Check if variables were found. */
if (nir_lower_clip_vs(nir, (1 << key->vue.nr_userclip_plane_consts) - 1,
true, false, NULL)) {
nir_lower_io_to_temporaries(nir, impl, true, false);
nir_lower_global_vars_to_local(nir);
nir_lower_vars_to_ssa(nir);
nir_shader_gather_info(nir, impl);
}
}
prog_data->use_alt_mode = nir->info.use_legacy_math_rules;