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.
Didier
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