Anticipating a Reply <ruxyz@xxxxxxxxx> writes:
> Hi ,
>
> Thanks for the response .
>
> I know that the flags are documented ,
If you know that, why didn't you follow the link Eljay provided you
with? Had you selected the manual appropriate to your version of
gcc, selected 'GCC Command Options' , 'Options that control
optimization', you would have found the descriptions, at the url I
give below. However since you didnn't say which version you are
using, so I assumed 3.3 .
> but which all get used with -O2 , -O3 ,.....
[snip]
http://gcc.gnu.org/onlinedocs/gcc-3.3/gcc/Optimize-Options.html#Optimize%20Options
