removed ^M

[libfirm] / ir / ir / irprintf.c

diff --git a/ir/ir/irprintf.c b/ir/ir/irprintf.c
index 2d8e123..f744eee 100644 (file)
--- a/ir/ir/irprintf.c
+++ b/ir/ir/irprintf.c
@@ -46,6 +46,7 @@
 #include "iterator.h"
 #include "bitset.h"
 
+#define STRNIL "(nil)"
 
 /**
  * Init the string.
@@ -432,8 +433,11 @@ static void ir_common_vprintf(const appender_t *app, void *object,
                                case 'n':
                                        {
                                                ir_node *irn = va_arg(args, ir_node *);
-                                               snprintf(buf, sizeof(buf), "%s%s:%ld",
-                                                               get_irn_opname(irn), get_mode_name(get_irn_mode(irn)), get_irn_node_nr(irn));
+                                               if(irn)
+                                                       snprintf(buf, sizeof(buf), "%s%s:%ld",
+                                                                       get_irn_opname(irn), get_mode_name(get_irn_mode(irn)), get_irn_node_nr(irn));
+                                               else
+                                                       strncpy(buf, STRNIL, sizeof(buf));
                                        }
                                        break;