1  /* { dg-do compile } */
       2  /* { dg-options "-O -fdump-tree-phiopt2" } */
       3  
       4  int f(int a, int b, int c) {
       5    if (c > 5) return c;
       6    if (a == 0) return b;
       7    return a + b;
       8  }
       9  
      10  unsigned rot(unsigned x, int n) {
      11    const int bits = __CHAR_BIT__ * __SIZEOF_INT__;
      12    return (n == 0) ? x : ((x << n) | (x >> (bits - n)));
      13  }
      14  
      15  unsigned m(unsigned a, unsigned b) {
      16    if (a == 0)
      17      return 0;
      18    else
      19      return a & b;
      20  }
      21  
      22  /* { dg-final { scan-tree-dump-times "goto" 2 "phiopt2" } } */