https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91191
--- Comment #8 from Andrew Macleod <amacleod at redhat dot com> ---
(In reply to Jeffrey A. Law from comment #7)
> If you're V_C_E-ing to a narrower type, you just ignore the bits outside the
> target type, it's a lot like a narrowing subreg in the RTL world.
>
> I don't know what the semantics are for the widening case. ISTM that it's
> not really helpful there.
>
But isn't that the case here?
_6 = VIEW_CONVERT_EXPR<unsigned char>(b_4(D));
if (_6 > 1)
goto <bb 3>; [INV]
else
goto <bb 4>; [INV]
we are widening the single bit BOOL into an 8 bit unsigned char...
so we need to decide if the other bits are always 0 or what....
