From d6d73aae4f833d1e5d7c1bef68a8db3915ec666b Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Tapani=20P=C3=A4lli?= Date: Tue, 12 Sep 2023 12:45:47 +0300 Subject: [PATCH] iris: avoid issues with undefined clip distance MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Cc: mesa-stable Closes: https://gitlab.freedesktop.org/mesa/mesa/-/issues/9797 Signed-off-by: Tapani Pälli Reviewed-by: Sagar Ghuge Part-of: --- src/gallium/drivers/iris/iris_program.c | 14 ++++++++------ 1 file changed, 8 insertions(+), 6 deletions(-) diff --git a/src/gallium/drivers/iris/iris_program.c b/src/gallium/drivers/iris/iris_program.c index 44f2d6ed419..f43d9b1fa54 100644 --- a/src/gallium/drivers/iris/iris_program.c +++ b/src/gallium/drivers/iris/iris_program.c @@ -1303,12 +1303,14 @@ 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;