1  /* PR inline-asm/84742 */
       2  /* { dg-do compile } */
       3  /* { dg-options "-O2" } */
       4  
       5  void 
       6  foo ()
       7  {
       8    char b = 1;
       9    asm volatile ("" : "+T,Y" (b));	/* { dg-error "impossible constraint in 'asm'" } */
      10  }