modernc.org/cc@v1.0.1/testdata/gcc-6.3.0/gcc/testsuite/gcc.c-torture/compile/930611-1.c (about)

     1  float
     2  f (float a1)
     3  {
     4    union { float f; int l; } fl1;
     5    fl1.f = a1;
     6    return fl1.l ? 1.0 : a1;
     7  }