1  /* { dg-do compile } */
       2  /* { dg-options "-O -fno-tree-sra -fdump-tree-fre1-details" } */
       3  #if (__SIZEOF_INT__ == __SIZEOF_FLOAT__)
       4  typedef int intflt;
       5  #elif (__SIZEOF_LONG__ == __SIZEOF_FLOAT__)
       6  typedef long intflt;
       7  #else
       8  #error Add target support here for type that will union float size
       9  #endif
      10  union U {
      11    intflt i;
      12    float f;
      13  };
      14  intflt foo(int i, int b)
      15  {
      16    union U u;
      17    if (b)
      18      {
      19        i = i << 2;
      20        u.i = i;
      21        return u.f;
      22      }
      23    else
      24      {
      25        i = i << 2;
      26        u.i = i;
      27        return u.f;
      28      }
      29  }
      30  
      31  /* { dg-final { scan-tree-dump-times "Replaced u.f with" 2 "fre1" } } */
      32  /* { dg-final { scan-tree-dump-times "Inserted" 2 "fre1" } } */