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-rw-r--r--src/mesa/drivers/dri/i965/brw_fs.cpp9
1 files changed, 7 insertions, 2 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_fs.cpp b/src/mesa/drivers/dri/i965/brw_fs.cpp
index 1fc8cca96ad..67719d3e74c 100644
--- a/src/mesa/drivers/dri/i965/brw_fs.cpp
+++ b/src/mesa/drivers/dri/i965/brw_fs.cpp
@@ -760,18 +760,23 @@ fs_visitor::emit_shader_time_end()
reset.set_smear(2);
fs_inst *test = emit(AND(reg_null_d, reset, fs_reg(1u)));
test->conditional_mod = BRW_CONDITIONAL_Z;
+ test->force_writemask_all = true;
emit(IF(BRW_PREDICATE_NORMAL));
fs_reg start = shader_start_time;
start.negate = true;
fs_reg diff = fs_reg(GRF, virtual_grf_alloc(1), BRW_REGISTER_TYPE_UD, 1);
- emit(ADD(diff, start, shader_end_time));
+ fs_inst *add = ADD(diff, start, shader_end_time);
+ add->force_writemask_all = true;
+ emit(add);
/* If there were no instructions between the two timestamp gets, the diff
* is 2 cycles. Remove that overhead, so I can forget about that when
* trying to determine the time taken for single instructions.
*/
- emit(ADD(diff, diff, fs_reg(-2u)));
+ add = ADD(diff, diff, fs_reg(-2u));
+ add->force_writemask_all = true;
+ emit(add);
emit_shader_time_write(type, diff);
emit_shader_time_write(written_type, fs_reg(1u));