- BugFix: when splitting by input, ensure than Z is split by ALL inputs

[libfirm] / ir / ir / irnode.c

diff --git a/ir/ir/irnode.c b/ir/ir/irnode.c
index ffd3aeb..d6b9289 100644 (file)
--- a/ir/ir/irnode.c
+++ b/ir/ir/irnode.c
@@ -356,6 +356,8 @@ void (set_irn_dep)(ir_node *node, int pos, ir_node *dep) {
 int add_irn_dep(ir_node *node, ir_node *dep) {
        int res = 0;
 
+       /* DEP edges are only allowed in backend phase */
+       assert(get_irg_phase_state(get_irn_irg(node)) == phase_backend);
        if (node->deps == NULL) {
                node->deps = NEW_ARR_F(ir_node *, 1);
                node->deps[0] = dep;