preprocessor flag for node_nr

[libfirm] / ir / ir / irgopt.c

diff --git a/ir/ir/irgopt.c b/ir/ir/irgopt.c
index 32245e5..f8ceab8 100644 (file)
--- a/ir/ir/irgopt.c
+++ b/ir/ir/irgopt.c
@@ -55,9 +55,9 @@ static void init_link (ir_node *n, void *env) {
 }
 
 #if 0   /* Old version. Avoids Ids.
-       This is not necessary:  we do a postwalk, and get_irn_n
-       removes ids anyways.  So it's much cheaper to call the
-       optimization less often and use the exchange() algorithm. */
+          This is not necessary:  we do a postwalk, and get_irn_n
+          removes ids anyways.  So it's much cheaper to call the
+          optimization less often and use the exchange() algorithm. */
 static void
 optimize_in_place_wrapper (ir_node *n, void *env) {
   int i, irn_arity;
@@ -249,10 +249,12 @@ copy_node (ir_node *n, void *env) {
   new_backedge_info(nn);
   set_new_node(n, nn);
 
+#if DEBUG_libfirm
   if (copy_node_nr) {
     /* for easier debugging, we want to copy the node numbers too */
     nn->node_nr = n->node_nr;
   }
+#endif
 
   /*  printf("\n old node: "); DDMSG2(n);
       printf(" new node: "); DDMSG2(nn); */