1  /* This used to segfault on SPARC 64-bit at runtime because
       2     the stack pointer was clobbered by the function call.   */
       3  
       4  /* { dg-do run } */
       5  
       6  #include <stdarg.h>
       7  
       8  union U
       9  {
      10    long l1[2];
      11  };
      12  
      13  union U u;
      14  
      15  void foo (int z, ...)
      16  {
      17    int i;
      18    va_list ap;
      19    va_start(ap,z);
      20    i = va_arg(ap, int);
      21    va_end(ap);
      22  }
      23  
      24  int main(void)
      25  {
      26    foo (1, 1, 1, 1, 1, u);
      27    return 0;
      28  }