[Mesa-dev] [PATCH 07/13] i965: Don't request untyped atomic writeback message if the destination is null.

[Francisco Jerez]

---
 src/mesa/drivers/dri/i965/brw_fs_generator.cpp   | 2 +-
 src/mesa/drivers/dri/i965/brw_vec4_generator.cpp | 3 ++-
 2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/src/mesa/drivers/dri/i965/brw_fs_generator.cpp b/src/mesa/drivers/dri/i965/brw_fs_generator.cpp
index 4e695f5..48eee18 100644
--- a/src/mesa/drivers/dri/i965/brw_fs_generator.cpp
+++ b/src/mesa/drivers/dri/i965/brw_fs_generator.cpp
@@ -1887,7 +1887,7 @@ fs_generator::generate_code(const cfg_t *cfg, int dispatch_width)
          assert(src[1].file == BRW_IMMEDIATE_VALUE &&
                 src[2].file == BRW_IMMEDIATE_VALUE);
          brw_untyped_atomic(p, dst, src[0], src[2], src[1].dw1.ud,
-                            inst->mlen, true);
+                            inst->mlen, !inst->dst.is_null());
          brw_mark_surface_used(prog_data, src[2].dw1.ud);
          break;
 
diff --git a/src/mesa/drivers/dri/i965/brw_vec4_generator.cpp b/src/mesa/drivers/dri/i965/brw_vec4_generator.cpp
index 131fd4f..22fdd63 100644
--- a/src/mesa/drivers/dri/i965/brw_vec4_generator.cpp
+++ b/src/mesa/drivers/dri/i965/brw_vec4_generator.cpp
@@ -1462,7 +1462,8 @@ vec4_generator::generate_code(const cfg_t *cfg)
          assert(src[0].file == BRW_IMMEDIATE_VALUE &&
                 src[1].file == BRW_IMMEDIATE_VALUE);
          brw_untyped_atomic(p, dst, brw_message_reg(inst->base_mrf),
-                            src[1], src[0].dw1.ud, inst->mlen, true);
+                            src[1], src[0].dw1.ud, inst->mlen,
+                            !inst->dst.is_null());
          brw_mark_surface_used(&prog_data->base, src[1].dw1.ud);
          break;
 
-- 
2.1.3