1  /* PR c/77521 - %qc format directive should quote non-printable characters.
       2     Verify that non-printable characters in assembly constraints are quoted
       3     and not allowed to be printed raw.  */
       4  
       5  void f (int a, int b)
       6  {
       7    __asm__ ("combine %2, %0" : "=r" (a) : "0" (a), "\n" (b));   /* { dg-error "invalid punctuation .\\\\x0a. in constraint" } */
       8  }