cleanup space generation logic and make it more robust for union constructs

[libfirm] / ir / ir / irop.c

diff --git a/ir/ir/irop.c b/ir/ir/irop.c
index dc4b930..8cbc508 100644 (file)
--- a/ir/ir/irop.c
+++ b/ir/ir/irop.c
@@ -246,7 +246,7 @@ new_ir_op(unsigned code, const char *name, op_pin_state p,
        res->flags     = flags;
        res->opar      = opar;
        res->op_index  = op_index;
-       res->tag       = NULL;
+       res->tag       = 0;
 
        if (ops)
                memcpy(&res->ops, ops, sizeof(res->ops));