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-rw-r--r--src/mesa/drivers/dri/i965/brw_schedule_instructions.cpp23
1 files changed, 3 insertions, 20 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_schedule_instructions.cpp b/src/mesa/drivers/dri/i965/brw_schedule_instructions.cpp
index 66eb07e6d1a..46b45a5ea01 100644
--- a/src/mesa/drivers/dri/i965/brw_schedule_instructions.cpp
+++ b/src/mesa/drivers/dri/i965/brw_schedule_instructions.cpp
@@ -923,15 +923,6 @@ fs_instruction_scheduler::calculate_deps()
*/
schedule_node *last_fixed_grf_write = NULL;
- /* The last instruction always needs to still be the last
- * instruction. Either it's flow control (IF, ELSE, ENDIF, DO,
- * WHILE) and scheduling other things after it would disturb the
- * basic block, or it's FB_WRITE and we should do a better job at
- * dead code elimination anyway.
- */
- schedule_node *last = (schedule_node *)instructions.get_tail();
- add_barrier_deps(last);
-
memset(last_grf_write, 0, sizeof(last_grf_write));
memset(last_mrf_write, 0, sizeof(last_mrf_write));
@@ -940,7 +931,8 @@ fs_instruction_scheduler::calculate_deps()
fs_inst *inst = (fs_inst *)n->inst;
if (inst->opcode == FS_OPCODE_PLACEHOLDER_HALT ||
- inst->has_side_effects())
+ inst->is_control_flow() ||
+ inst->has_side_effects())
add_barrier_deps(n);
/* read-after-write deps. */
@@ -1166,15 +1158,6 @@ vec4_instruction_scheduler::calculate_deps()
*/
schedule_node *last_fixed_grf_write = NULL;
- /* The last instruction always needs to still be the last instruction.
- * Either it's flow control (IF, ELSE, ENDIF, DO, WHILE) and scheduling
- * other things after it would disturb the basic block, or it's the EOT
- * URB_WRITE and we should do a better job at dead code eliminating
- * anything that could have been scheduled after it.
- */
- schedule_node *last = (schedule_node *)instructions.get_tail();
- add_barrier_deps(last);
-
memset(last_grf_write, 0, sizeof(last_grf_write));
memset(last_mrf_write, 0, sizeof(last_mrf_write));
@@ -1182,7 +1165,7 @@ vec4_instruction_scheduler::calculate_deps()
foreach_in_list(schedule_node, n, &instructions) {
vec4_instruction *inst = (vec4_instruction *)n->inst;
- if (inst->has_side_effects())
+ if (inst->is_control_flow() || inst->has_side_effects())
add_barrier_deps(n);
/* read-after-write deps. */