1  /* PR rtl-optimization/52060 */
       2  /* { dg-do run { target int32plus } } */
       3  
       4  extern void abort (void);
       5  union U { float f; unsigned int i; };
       6  
       7  static inline __attribute__((always_inline)) unsigned int
       8  foo (float x)
       9  {
      10    union U u;
      11    unsigned int a, b, c;
      12    int d;
      13    int e;
      14    u.f = x;
      15    d = ((unsigned) u.i >> 23) & 0xFF;
      16    c = d < 126 ? 0 : ~0;
      17    e = 127 + 30 - d;
      18    a = (u.i << 8) | 0x80000000U;
      19    b = a & ((1 << e) - 1);
      20    a = a >> e;
      21    c &= (b | (a & 2)) ? ~0 : ~1;
      22    a = ((a + 1U) >> 1) & c;
      23    return a;
      24  }
      25  
      26  __attribute__((noinline)) unsigned int
      27  bar (float x)
      28  {
      29    unsigned int a, b, c;
      30    static const unsigned int d[128] =
      31    {
      32      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
      33      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
      34      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
      35      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
      36      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
      37      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
      38      2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
      39      3, 3, 3, 3, 3, 3, 3, 3, 4, 4, 4, 4, 5, 5, 6, 7
      40    };
      41    a = foo (1048575.0f * x);
      42    c = d[a >> 13];
      43    b = (c << 13) | ((a >> (7 - c)) & 0x1fff);
      44    return b;
      45  }
      46  
      47  int
      48  main ()
      49  {
      50    union U u;
      51    u.f = 1048575.0f;
      52    if (sizeof (u.i) == sizeof (u.f)
      53        && u.i == 0x497ffff0U
      54        && bar (1.0f) != 65535)
      55      abort ();
      56    return 0;
      57  }