cselib.c (dump_cselib_val): Don't assume l->setting_insn is non-NULL.

	* cselib.c (dump_cselib_val): Don't assume l->setting_insn is
	non-NULL.

From-SVN: r184168

gcc/ChangeLog

 2012-02-13  Jakub Jelinek  <jakub@redhat.com>
 
+	* cselib.c (dump_cselib_val): Don't assume l->setting_insn is
+	non-NULL.
+
 	PR middle-end/52230
 	* omp-low.c (expand_omp_for): If a static schedule without
 	chunk size has NULL region->cont, force fd.chunk_size to be

gcc/cselib.c

@@ -2688,8 +2688,11 @@ dump_cselib_val (void **x, void *info)
       fputs (" locs:", out);
       do
 	{
-	  fprintf (out, "\n  from insn %i ",
-		   INSN_UID (l->setting_insn));
+	  if (l->setting_insn)
+	    fprintf (out, "\n  from insn %i ",
+		     INSN_UID (l->setting_insn));
+	  else
+	    fprintf (out, "\n   ");
 	  print_inline_rtx (out, l->loc, 4);
 	}
       while ((l = l->next));