1  /* PR target/95450 */
       2  /* { dg-do compile } */
       3  /* { dg-options "-O2 -fdump-tree-optimized" } */
       4  /* { dg-final { scan-tree-dump-not "return \[0-9.e+]\+;" "optimized" } } */
       5  
       6  /* Verify this is not optimized for double double into return floating_point_constant,
       7     as while that constant is the maximum normalized floating point value, it needs
       8     107 bit precision, which is more than GCC supports for this format.  */
       9  
      10  #if __LDBL_MANT_DIG__ == 106
      11  union U
      12  {
      13    struct { double hi; double lo; } dd;
      14    long double ld;
      15  };
      16  
      17  const union U g = { { __DBL_MAX__, __DBL_MAX__ / (double)134217728UL / (double)134217728UL } };
      18  #else
      19  struct S
      20  {
      21    long double ld;
      22  } g;
      23  #endif
      24  
      25  long double
      26  foo (void)
      27  {
      28    return g.ld;
      29  }