- re-enabled global-non-null test, but place Confirms only before Cmp nodes

[libfirm] / ir / ana / irextbb.c

diff --git a/ir/ana/irextbb.c b/ir/ana/irextbb.c
index db8188b..fe99ffc 100644 (file)
--- a/ir/ana/irextbb.c
+++ b/ir/ana/irextbb.c
@@ -111,7 +111,7 @@ static void pre_walk_calc_extbb(ir_node *block, void *ctx) {
                         */
                        ir_node *cf_op = skip_Proj(get_Block_cfgpred(block, 0));
 
-                       if (irn_not_visited(cf_op)) {
+                       if (!irn_visited_else_mark(cf_op)) {
                                ir_node *pred_bl = get_nodes_block(cf_op);
                                if (get_block_n_succs(pred_bl) > 2) {
                                        /* More than two successors means we have a jump table.
@@ -125,7 +125,6 @@ static void pre_walk_calc_extbb(ir_node *block, void *ctx) {
                                         */
                                        set_Block_extbb(block, NULL);
                                }
-                               mark_irn_visited(cf_op);
                        } else {
                                /* already marked, so begin a new extended block here */
                                allocate_extblk(block, env);