re PR tree-optimization/48766 (Infinite recursion in fold_binary_loc())

	PR tree-optimization/48766
	* opts.c (common_handle_option): For -fwrapv disable -ftrapv, for
	-ftrapv disable -fwrapv.

From-SVN: r195186

gcc/ChangeLog

+2013-01-15  Jakub Jelinek  <jakub@redhat.com>
+
+	PR tree-optimization/48766
+	* opts.c (common_handle_option): For -fwrapv disable -ftrapv, for
+	-ftrapv disable -fwrapv.
+
 2013-01-14  Georg-Johann Lay  <avr@gjlay.de>
 
 	PR target/55974

gcc/opts.c

@@ -1755,6 +1755,16 @@ common_handle_option (struct gcc_options *opts,
       /* No-op. Used by the driver and passed to us because it starts with f.*/
       break;
 
+    case OPT_fwrapv:
+      if (value)
+	opts->x_flag_trapv = 0;
+      break;
+
+    case OPT_ftrapv:
+      if (value)
+	opts->x_flag_wrapv = 0;
+      break;
+
     default:
       /* If the flag was handled in a standard way, assume the lack of
 	 processing here is intentional.  */