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Re: [PATCH] Get rid of awkward precision for bitsize types
On Mon, Apr 6, 2009 at 1:08 PM, Eric Botcazou <ebotcazou@adacore.com> wrote:
>> But it would have the same problem, no?
>
> Truncating or not truncating at run time doesn't change anything since we
> pretend that sizetypes don't overflow. ?This worked perfectly before the
> bitfield truncating patch from 2004, it purely pessimized for sizetypes.
If we pretend that sizetypes don't overflow we can as well use the
bigger mode. Of course I don't believe that non-overflow story for
sizetypes ...
Given the choices I would rather go for DImode bitsizetype here
than add another TYPE_IS_SIZETYPE dependend codepath.
Thus, the patch is ok if it bootstraps & tests on another random
target as well.
Richard.