1  /* { dg-do compile } */
       2  /* { dg-options "-O1" } */
       3  
       4  int *ptr;
       5  int *fn1 (int *);
       6  int fn2 (int, int);
       7  int fn3 (void);
       8  int fn4 (int);
       9  
      10  static int
      11  foo (int x, int y, int z)
      12  {
      13    int b;
      14    asm ("" : "=a" (b), "=&d" (x) : "0" (y), "1" (x), "mr" (z));
      15    return x;
      16  }
      17  
      18  static int
      19  bar (int x, int y)
      20  {
      21    int a;
      22    if (!y)
      23      {
      24        for (a = 0; a <= (x >> 1); )
      25  	;
      26        a = foo (y, fn2 (2, x), x);
      27        if (x)
      28  	a = x;
      29        return a;
      30      }
      31  }
      32  
      33  static int
      34  baz (int x, int y)
      35  {
      36    int *a = ptr;
      37    int t, xk1 = fn3 (), xk = x * xk1;
      38    for (t = 0; t < xk; t += xk1)
      39      {
      40        if (fn4 (a[2]))
      41  	return -y;
      42        a = fn1 (a);
      43      }
      44    return 0;
      45  }
      46  
      47  void
      48  test (int x, long y, int z)
      49  {
      50    int a = fn3 ();
      51    int b;
      52    int c = bar (x, z);
      53    for (b = 0; b <= y; b++)
      54      c = baz (x, c);
      55    fn2 (c, a);
      56  }