From f33454e35a00d3be05f01eb70168e1eba87db466 Mon Sep 17 00:00:00 2001
From: Alyssa Rosenzweig <alyssa.rosenzweig@intel.com>
Date: Fri, 23 Jan 2026 15:52:59 -0500
Subject: [PATCH] brw: disable nir_opt_uniform_atomics for Jay

While Jay supports subgroups, efficient reductions are TODO so it's probably
better not to run this pass yet.

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@intel.com>
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/40835>
---
 src/intel/compiler/brw/brw_nir.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/intel/compiler/brw/brw_nir.c b/src/intel/compiler/brw/brw_nir.c
index abdb3993fde..9b9fa434fc4 100644
--- a/src/intel/compiler/brw/brw_nir.c
+++ b/src/intel/compiler/brw/brw_nir.c
@@ -2955,7 +2955,8 @@ brw_postprocess_nir_opts(brw_pass_tracker *pt)
       .lower_subgroup_masks = true,
    };
 
-   if (OPT(nir_opt_uniform_atomics, false))
+   if (!intel_use_jay(devinfo, pt->nir->info.stage) &&
+       OPT(nir_opt_uniform_atomics, false))
       OPT(nir_lower_subgroups, &subgroups_options);
 
    if (pt->key->divergent_atomics_flags)