From ada898bb1c86a24b66d0c8ea0aafed6de02dc4bc Mon Sep 17 00:00:00 2001
From: Caio Oliveira <caio.oliveira@intel.com>
Date: Wed, 20 Nov 2024 08:12:52 -0800
Subject: [PATCH] intel/brw: Disallow cmod in some cases of ARF scalar as
 destination

Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/32758>
---
 src/intel/compiler/brw_fs.cpp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/intel/compiler/brw_fs.cpp b/src/intel/compiler/brw_fs.cpp
index 6b5f5d4d837..df33b0529d7 100644
--- a/src/intel/compiler/brw_fs.cpp
+++ b/src/intel/compiler/brw_fs.cpp
@@ -393,6 +393,9 @@ fs_inst::can_do_cmod() const
          return false;
    }
 
+   if (dst.file == ARF && dst.nr == BRW_ARF_SCALAR && src[0].file == IMM)
+      return false;
+
    return true;
 }