1  /* Check that indirect sibcalls understand regparm.  */
       2  /* { dg-do run { target ia32 } } */
       3  /* { dg-options "-O2" } */
       4  
       5  extern void abort (void);
       6  
       7  int (*f)(int, int) __attribute__((regparm(2)));
       8  int (*g)(int, int, int) __attribute__((regparm(3)));
       9  
      10  int __attribute__((noinline))
      11  foo(void)
      12  {
      13    return f(1, 2);
      14  }
      15  
      16  int __attribute__((noinline))
      17  bar(void)
      18  {
      19    return g(1, 2, 3);
      20  }
      21  
      22  int __attribute__((regparm(2)))
      23  f1(int x, int y)
      24  {
      25    return x*3 + y;
      26  }
      27  
      28  int __attribute__((regparm(3)))
      29  g1(int x, int y, int z)
      30  {
      31    return x*9 + y*3 + z;
      32  }
      33  
      34  int main()
      35  {
      36    f = f1;
      37    g = g1;
      38    if (foo() != 1*3 + 2)
      39      abort ();
      40    if (bar() != 1*9 + 2*3 + 3)
      41      abort ();
      42    return 0;
      43  }