1  /* { dg-do compile } */
       2  /* { dg-options "-O2 -fprofile-use -Wno-missing-profile" } */
       3  
       4  static inline int CLZ(int mask) {
       5     return mask ? __builtin_clz(mask) : 32;
       6  }
       7  
       8  int foo(int value)
       9  {
      10      if (value == 0)
      11          return 0;
      12  
      13      int bias = CLZ(value);
      14      value >>= bias;
      15      int zeros = CLZ(value << 1);
      16      value <<= zeros;
      17  
      18      int packed = (unsigned)(value << 9) >> 9;
      19      return packed;
      20  }