[Mesa-dev] [PATCH 4/4] i965/fs: Emit a single ADD instruction for SET_SAMPLE_ID on Gen8+.

[Matt Turner]

Gen8+ lifted the register region restriction that an instruction whose
destination spans two registers must have sources that also span two
registers.
---
 src/mesa/drivers/dri/i965/brw_fs_generator.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/mesa/drivers/dri/i965/brw_fs_generator.cpp b/src/mesa/drivers/dri/i965/brw_fs_generator.cpp
index 15d0430..aed4adb 100644
--- a/src/mesa/drivers/dri/i965/brw_fs_generator.cpp
+++ b/src/mesa/drivers/dri/i965/brw_fs_generator.cpp
@@ -1426,7 +1426,7 @@ fs_generator::generate_set_sample_id(fs_inst *inst,
           src0.type == BRW_REGISTER_TYPE_UD);
 
    struct brw_reg reg = stride(src1, 1, 4, 0);
-   if (dispatch_width == 8) {
+   if (devinfo->gen >= 8 || dispatch_width == 8) {
       brw_ADD(p, dst, src0, reg);
    } else if (dispatch_width == 16) {
       brw_push_insn_state(p);
-- 
2.4.9