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-rw-r--r--src/gallium/drivers/r600/sb/sb_bc_finalize.cpp50
1 files changed, 38 insertions, 12 deletions
diff --git a/src/gallium/drivers/r600/sb/sb_bc_finalize.cpp b/src/gallium/drivers/r600/sb/sb_bc_finalize.cpp
index f0849ca6b6b..0fa0910ba17 100644
--- a/src/gallium/drivers/r600/sb/sb_bc_finalize.cpp
+++ b/src/gallium/drivers/r600/sb/sb_bc_finalize.cpp
@@ -46,15 +46,22 @@ int bc_finalizer::run() {
for (regions_vec::reverse_iterator I = rv.rbegin(), E = rv.rend(); I != E;
++I) {
region_node *r = *I;
-
+ bool is_if = false;
assert(r);
- bool loop = r->is_loop();
+ assert(r->first);
+ if (r->first->is_container()) {
+ container_node *repdep1 = static_cast<container_node*>(r->first);
+ assert(repdep1->is_depart() || repdep1->is_repeat());
+ if_node *n_if = static_cast<if_node*>(repdep1->first);
+ if (n_if && n_if->is_if())
+ is_if = true;
+ }
- if (loop)
- finalize_loop(r);
- else
+ if (is_if)
finalize_if(r);
+ else
+ finalize_loop(r);
r->expand();
}
@@ -112,16 +119,33 @@ void bc_finalizer::finalize_loop(region_node* r) {
cf_node *loop_start = sh.create_cf(CF_OP_LOOP_START_DX10);
cf_node *loop_end = sh.create_cf(CF_OP_LOOP_END);
+ bool has_instr = false;
+
+ if (!r->is_loop()) {
+ for (depart_vec::iterator I = r->departs.begin(), E = r->departs.end();
+ I != E; ++I) {
+ depart_node *dep = *I;
+ if (!dep->empty()) {
+ has_instr = true;
+ break;
+ }
+ }
+ } else
+ has_instr = true;
- loop_start->jump_after(loop_end);
- loop_end->jump_after(loop_start);
+ if (has_instr) {
+ loop_start->jump_after(loop_end);
+ loop_end->jump_after(loop_start);
+ }
for (depart_vec::iterator I = r->departs.begin(), E = r->departs.end();
I != E; ++I) {
depart_node *dep = *I;
- cf_node *loop_break = sh.create_cf(CF_OP_LOOP_BREAK);
- loop_break->jump(loop_end);
- dep->push_back(loop_break);
+ if (has_instr) {
+ cf_node *loop_break = sh.create_cf(CF_OP_LOOP_BREAK);
+ loop_break->jump(loop_end);
+ dep->push_back(loop_break);
+ }
dep->expand();
}
@@ -137,8 +161,10 @@ void bc_finalizer::finalize_loop(region_node* r) {
rep->expand();
}
- r->push_front(loop_start);
- r->push_back(loop_end);
+ if (has_instr) {
+ r->push_front(loop_start);
+ r->push_back(loop_end);
+ }
}
void bc_finalizer::finalize_if(region_node* r) {