1  /* { dg-do run } */
       2  /* { dg-options "-O2 -fipa-ra" } */
       3  
       4  extern void abort (void);
       5  
       6  #if (__SIZEOF_LONG_LONG__ == __SIZEOF_POINTER__)
       7  #define ADD_SUFFIX(a) a ## ULL
       8  #elif (__SIZEOF_LONG__ == __SIZEOF_POINTER__)
       9  #define ADD_SUFFIX(a) a ## UL
      10  #elif (__SIZEOF_INT__ == __SIZEOF_POINTER__)
      11  #define ADD_SUFFIX(a) a ## U
      12  #else
      13  #error Add target support here
      14  #endif
      15  
      16  #if __SIZEOF_POINTER__ <= 4
      17  /* Use a 16 bit pointer to have a valid pointer for 16-bit to 31-bit pointer
      18     architectures.  Using sizeof, we cannot distinguish between 31-bit and 32-bit
      19     pointer types, so we also handle the 32-bit pointer type case here.  */
      20  #define CONST_PTR ADD_SUFFIX (0x800)
      21  #else
      22  /* For x86_64 -m64, the problem reproduces with this 32-bit CONST_PTR, but not
      23     with a 2-power below it.  */
      24  #define CONST_PTR ADD_SUFFIX (0x80000000)
      25  #endif
      26  
      27  int __attribute__((noinline, noclone))
      28  bar (void)
      29  {
      30    return 1;
      31  }
      32  
      33  struct S
      34  {
      35    unsigned long p, q, r;
      36    void *v;
      37  };
      38  
      39  struct S *s1;
      40  struct S *s2;
      41  
      42  void __attribute__((noinline, noclone))
      43  fn2 (struct S *x)
      44  {
      45    s2 = x;
      46  }
      47  
      48  __attribute__((noinline, noclone)) void *
      49  fn1 (struct S *x)
      50  {
      51    /* Just a statement to make it a non-const function.  */
      52    s1 = x;
      53  
      54    return (void *)0;
      55  }
      56  
      57  int __attribute__((noinline, noclone))
      58  baz (void)
      59  {
      60    struct S *x = (struct S *) CONST_PTR;
      61  
      62    x += bar ();
      63  
      64    fn1 (x);
      65    fn2 (x);
      66  
      67    return 0;
      68  }
      69  
      70  int
      71  main (void)
      72  {
      73    baz ();
      74  
      75    if (s2 != (((struct S *) CONST_PTR) + 1))
      76      abort ();
      77  
      78    return 0;
      79  }