Andrew Pinski writes:
>
> On Jun 20, 2006, at 7:20 AM, Andrew Haley wrote:
>
> > Does using fields of auto variables of union type generate code that
> > is less efficient than it would be using scalars?
>
> If it is only one used field at a time (and the address is not taken),
> then FR
Andrew Haley wrote:
> Does using fields of auto variables of union type generate code that
> is less efficient than it would be using scalars?
>
> That is, if in C++ I declare my variables as
>
> foo()
> {
> union
> {
> int n;
> };
>
> ...
> }
>
> as opposed to simply
>
> foo()
> {
On Jun 20, 2006, at 7:20 AM, Andrew Haley wrote:
Does using fields of auto variables of union type generate code that
is less efficient than it would be using scalars?
If it is only one used field at a time (and the address is not taken),
then FRE will resolve them.
Take:
int f(int t, int t1
