modernc.org/ccgo/v3@v3.16.14/lib/testdata/gcc-9.1.0/gcc/testsuite/gcc.c-torture/compile/20161123-1.c (about)

     1  double
     2  f (long double x)
     3  {
     4    union { long double ld; double d[2]; } u;
     5    u.ld = x;
     6    return u.d[1];
     7  }