1  /* { dg-do compile } */
       2  /* { dg-options "-fstack-clash-protection" } */
       3  /* { dg-require-effective-target supports_stack_clash_protection } */
       4  
       5  int printf (const char *, ...);
       6  void blah (char *space) { }
       7  void mtrace (void);
       8  
       9  int do_test (void)
      10  {
      11      blah (__builtin_alloca (10));
      12      mtrace ();
      13      printf (
      14  #define A(a) "%" #a "$s"
      15  #define B(a) A(a)
      16  #define C(a,b,c,d) B(a##b##c##d)
      17  #define D(a,b,c) C(a,b,c,1) C(a,b,c,2) C(a,b,c,3) C(a,b,c,4) C(a,b,c,5) \
      18  		 C(a,b,c,6) C(a,b,c,7) C(a,b,c,8) C(a,b,c,9)
      19  #define E(a,b,c) C(a,b,c,0) D(a,b,c)
      20  #define F(a,b) E(a,b,1) E(a,b,2) E(a,b,3) E(a,b,4) E(a,b,5) \
      21  	       E(a,b,6) E(a,b,7) E(a,b,8) E(a,b,9)
      22  #define G(a,b) E(a,b,0) F(a,b)
      23  #define H(a) G(a,1) G(a,2) G(a,3) G(a,4) G(a,5) G(a,6) G(a,7) G(a,8) G(a,9)
      24  #define I(a) G(a,0) H(a)
      25  #define J I(1) I(2) I(3) I(4) I(5) I(6) I(7) I(8) I(9)
      26  	    D(,,)
      27  	    F(,)
      28  	    H()
      29  	    J
      30  	    C(10,0,0,0) C(10,0,0,1),
      31  #undef A
      32  #define A(a) "a",
      33  	    I(0) J
      34  	    "\n");
      35    return 0;
      36  }