- BugFix: when peephole combines two IncSP nodes, let the first one survive, not...

[r20161]

diff --git a/ir/be/bepeephole.c b/ir/be/bepeephole.c
index 3194b4b..0897dc0 100644 (file)
--- a/ir/be/bepeephole.c
+++ b/ir/be/bepeephole.c
@@ -271,7 +271,6 @@ void be_peephole_IncSP_IncSP(ir_node *node)
        int      curr_offs;
        int      offs;
        ir_node *pred = be_get_IncSP_pred(node);
-       ir_node *predpred;
 
        if (!be_is_IncSP(pred))
                return;
@@ -299,19 +298,17 @@ void be_peephole_IncSP_IncSP(ir_node *node)
                offs = curr_offs + pred_offs;
        }
 
-       /* add pred offset to ours and remove pred IncSP */
-       be_set_IncSP_offset(node, offs);
+       /* add node offset to pred and remove our IncSP */
+       be_set_IncSP_offset(pred, offs);
 
-       predpred = be_get_IncSP_pred(pred);
-       be_peephole_before_exchange(pred, predpred);
+       be_peephole_before_exchange(node, pred);
 
        /* rewire dependency edges */
-       edges_reroute_kind(pred, predpred, EDGE_KIND_DEP, current_ir_graph);
-       be_set_IncSP_pred(node, predpred);
-       sched_remove(pred);
-       be_kill_node(pred);
+       edges_reroute_kind(node, pred, EDGE_KIND_DEP, current_ir_graph);
+       sched_remove(node);
+       be_kill_node(node);
 
-       be_peephole_after_exchange(predpred);
+       be_peephole_after_exchange(pred);
 }
 
 void be_peephole_opt(be_irg_t *birg)