Deactivate edges before freeing an irg.

[r20869]

diff --git a/ir/ir/irgraph.c b/ir/ir/irgraph.c
index 9f93e14..f845476 100644 (file)
--- a/ir/ir/irgraph.c
+++ b/ir/ir/irgraph.c
@@ -529,6 +529,8 @@ ir_graph *create_irg_copy(ir_graph *irg) {
 void free_ir_graph(ir_graph *irg) {
        assert(is_ir_graph(irg));
 
+       edges_deactivate(irg);
+
        hook_free_graph(irg);
        if (irg->outs_state != outs_none)
                free_irg_outs(irg);