Re: [Q] Looking for an emulation for CMOV* instructions.

[Alan Cox]

> > It means the compiler for -m686 shouldn't have assumed cmov was available
> 
> Eh?  -march=i686 *asserts* that cmov is available.

So why is it called "i686" when the intel i686 machine definition says
its optional ? Its just the naming that seems odd

> What's the point of optimizing an IF to a cmov if I have
> to insert another IF to see if I can use cmov?

I've always wondered. Intel made the instruction optional yet there isnt
an obvious way to do runtime fixups on it