Work around an LLVM bug by not referring to globals from metadata. This was only used for consistency checking anyway. For the LLVM bug, see http://llvm.org/PR4180 / http://llvm.org/PR4046

module complex2;

void main()
{
    cdouble c = 3.0 + 0i;
    cdouble d = 2.0 + 0i;
    cdouble c1 = c + 3.0;
    cdouble c2 = c - 3.0i;
    cdouble c3 = c / 2.0;
}