https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92508

--- Comment #19 from Martin Liška <marxin at gcc dot gnu.org> ---
> We may do something like that, but testsuite requires dejagnu that is
> not normally necessary for bootstrapping.

I see.
>  It would also let us to train
> -O0 compilation that is quite important for perofrmance, too.

Why is that important for performance? I would expect the majority of people
use -O2 optimization level.

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