some belady3 fixes

[libfirm] / ir / ir / irnode.c

diff --git a/ir/ir/irnode.c b/ir/ir/irnode.c
index c3be35a..05069a8 100644 (file)
--- a/ir/ir/irnode.c
+++ b/ir/ir/irnode.c
@@ -154,7 +154,11 @@ new_ir_node(dbg_info *db, ir_graph *irg, ir_node *block, ir_op *op, ir_mode *mod
        if (arity < 0) {
                res->in = NEW_ARR_F(ir_node *, 1);  /* 1: space for block */
        } else {
-               res->in = NEW_ARR_D(ir_node *, irg->obst, (arity+1));
+               /* not nice but necessary: End must always have a flexible array */
+               if (op == op_End)
+                       res->in = NEW_ARR_F(ir_node *, (arity+1));
+               else
+                       res->in = NEW_ARR_D(ir_node *, irg->obst, (arity+1));
                memcpy(&res->in[1], in, sizeof(ir_node *) * arity);
        }