diff options
| -rw-r--r-- | src/mesa/drivers/dri/i965/brw_schedule_instructions.cpp | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_schedule_instructions.cpp b/src/mesa/drivers/dri/i965/brw_schedule_instructions.cpp index dfcaa80b58b..a8987065f18 100644 --- a/src/mesa/drivers/dri/i965/brw_schedule_instructions.cpp +++ b/src/mesa/drivers/dri/i965/brw_schedule_instructions.cpp @@ -94,6 +94,8 @@ public: * successors is an exit node. */ schedule_node *exit; + + bool is_barrier; }; /** @@ -800,6 +802,7 @@ schedule_node::schedule_node(backend_instruction *inst, this->cand_generation = 0; this->delay = 0; this->exit = NULL; + this->is_barrier = false; /* We can't measure Gen6 timings directly but expect them to be much * closer to Gen7 than Gen4. @@ -931,9 +934,13 @@ instruction_scheduler::add_barrier_deps(schedule_node *n) schedule_node *prev = (schedule_node *)n->prev; schedule_node *next = (schedule_node *)n->next; + n->is_barrier = true; + if (prev) { while (!prev->is_head_sentinel()) { add_dep(prev, n, 0); + if (prev->is_barrier) + break; prev = (schedule_node *)prev->prev; } } @@ -941,6 +948,8 @@ instruction_scheduler::add_barrier_deps(schedule_node *n) if (next) { while (!next->is_tail_sentinel()) { add_dep(n, next, 0); + if (next->is_barrier) + break; next = (schedule_node *)next->next; } } |