1  /* Test for PR 69625; make sure that a leaf vararg function does not overwrite
       2     the caller's r6.  */
       3  /* { dg-do run } */
       4  /* { dg-options "-O2" } */
       5  
       6  extern void abort (void);
       7  
       8  __attribute__ ((noinline))
       9  int
      10  foo (int x, ...)
      11  {
      12    __builtin_va_list vl;
      13    int i;
      14  
      15    __asm__ __volatile__ ("lhi %%r6,1" : : : "r6");
      16    __builtin_va_start(vl, x);
      17    for (i = 2; i <= 6; i++)
      18      x += __builtin_va_arg(vl, int);
      19    __builtin_va_end (vl);
      20  
      21    return x;
      22  }
      23  
      24  __attribute__ ((noinline))
      25  void
      26  bar (int r2, int r3, int r4, int r5, int r6)
      27  {
      28    foo (r2, r3, r4, r5, r6);
      29    if (r6 != 6)
      30      abort ();
      31  }
      32  
      33  int
      34  main (void)
      35  {
      36    bar (2, 3, 4, 5, 6);
      37  }