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Re: [patch] Add fast<N>_t types to stdint.h
On Thu, 2005-09-22 at 07:55 -0700, Tim Prince wrote:
> Ralf Corsepius wrote:
>
> >On Thu, 2005-09-22 at 08:17 -0500, Joel Sherrill wrote:
> >
> >
> >>Ralf Corsepius wrote:
> >>
> >>
> >>
> >
> >
> >>For this to work, there would have to be a gc predefine to indicate
> >>"size over speed".
> >>
> >>
> >To some extend it exists:
> >
> >-Os causes cpp to add:
> ># 1 "<built-in>"
> >#define __OPTIMIZE_SIZE__ 1
> >
> >
> >
> >
>
> Allowing -Os to have such an effect on data type selection would break
> things entirely. IMHO, unexpected incompatibilities should not be
> introduced between .o built with -Os and with -O2.
Yes, you are right, this would break ABIs, except in cases you'd have a
multilib variant for this case.
But this hardly makes sense at all, so .. this was a stupid idea.
Ralf