https://issues.dlang.org/show_bug.cgi?id=23774
--- Comment #2 from Rainer Schuetze <r.sagita...@gmx.de> ---
Something changed about the `__ctfe` branch in
```
union Split64
{
ulong u64;
uint lo;
pragma(inline, true)
this(ulong u64)
{
if (__ctfe)
lo = cast(uint) u64;
else
this.u64 = u64;
}
}
int foo(ulong v)
{
const sv = Split64(v);
return (sv.lo == 0);
}
```
If you replace `__ctfe` with `false` the wwarning disappears.
--
