> Le 21/04/2016 20:38, KatolaZ a écrit :
> >The simple reason is that the very same gcc has compiled at least 90%
> >of the software you are using in alpha4, and who knows how many other
> >millions of packages. So if there were any such bug in gcc, it would
> >have probably been hit by now, just out of pure probability...
>     Jaromil, I agree with one of your other posts in which you say
> that changing optimisation options often reveals a bug in the
> source. But for the argument above, well... I'm not sure 90% of the
> millions of packages have been compiled with -O3.

>     I remember, sometimes in the 80's, when Microware shipped their
> OS9 with their new ANSI C compiler, I had found a bug in the
> compiler, caused by some level of optimisation - it could be
> demonstrated with an ~5 lines example.