1  /* PR preprocessor/69543 */
       2  /* { dg-do compile } */
       3  /* { dg-options "-O2 -Wuninitialized" } */
       4  
       5  # define YY_IGNORE_MAYBE_UNINITIALIZED_BEGIN \
       6      _Pragma ("GCC diagnostic push") \
       7      _Pragma ("GCC diagnostic ignored \"-Wuninitialized\"")\
       8      _Pragma ("GCC diagnostic ignored \"-Wmaybe-uninitialized\"")
       9  # define YY_IGNORE_MAYBE_UNINITIALIZED_END \
      10      _Pragma ("GCC diagnostic pop")
      11  
      12  void test (char yylval)
      13  {
      14    char *yyvsp;
      15    YY_IGNORE_MAYBE_UNINITIALIZED_BEGIN
      16    *++yyvsp = yylval;
      17    YY_IGNORE_MAYBE_UNINITIALIZED_END
      18  }