From 5dd1461ca48178ffaf5b7c20dd395f0a533a5fb2 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Timur=20Krist=C3=B3f?= <timur.kristof@gmail.com>
Date: Thu, 11 Apr 2024 09:53:59 +0200
Subject: [PATCH] nir/opt_varyings: Add early return when producer stage is
 task.
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Signed-off-by: Timur Kristóf <timur.kristof@gmail.com>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/28685>
---
 src/compiler/nir/nir_opt_varyings.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/compiler/nir/nir_opt_varyings.c b/src/compiler/nir/nir_opt_varyings.c
index e7e98c94353..beffbf40ccc 100644
--- a/src/compiler/nir/nir_opt_varyings.c
+++ b/src/compiler/nir/nir_opt_varyings.c
@@ -4161,6 +4161,12 @@ nir_opt_varyings_progress
 nir_opt_varyings(nir_shader *producer, nir_shader *consumer, bool spirv,
                  unsigned max_uniform_components, unsigned max_ubos_per_stage)
 {
+   /* Task -> Mesh I/O uses payload variables and not varying slots,
+    * so this pass can't do anything about it.
+    */
+   if (producer->info.stage == MESA_SHADER_TASK)
+      return 0;
+
    /* Producers before a fragment shader must have up-to-date vertex
     * divergence information.
     */