[FFmpeg-cvslog] r24926 - trunk/libavcodec/x86/vp56dsp.asm

[Reimar Döffinger]

On Thu, Aug 26, 2010 at 03:25:52PM -0400, Ronald S. Bultje wrote:
> On Thu, Aug 26, 2010 at 3:10 PM, Reimar D?ffinger
> <Reimar.Doeffinger at gmx.de> wrote:
> > I complained about the name back then already, but x86_reg is designed
> > to and can be used just fine on all architectures, there really
> > is no need to reinvent the wheel.
> > If the term "x86" alone makes you run away screaming then the
> > solution is to rename it and move it out of x86_cpu.h, but
> > you certainly don't need to reinvent it!
> 
> Got it, the name confused me. I'm OK with it then, if Mans is OK also
> (even though the problem is limited to x86 only, apparently).

This specific problem? Yes.
The problem in general? Not so sure.
Nowadays compilers tend to be brighter, but one of the issues tended to be that
something like
int i;
for (i = 0; i < j; i++)
   array[i];
ended up with a sign-extension inside the loop.
I'd think that is not that unlikely to apply to other 64 bit 
architectures as well and would make a "register-size" type
useful for them as well.