> > Any ideas for better version? If not I will go ahead with this variant and
> > increase profile probability base.
>
> Why not use GCC wide int?
Because I would like to keep operations fast on in common case where overflows
do not happen. There was at least one case (the propagation of probabi
On Tue, 10 Oct 2017, Jan Hubicka wrote:
> Hi,
> in order to drop frequencies from basic blocks and counts from edges I need
> to make probabilities more precise (so we do not get all those roundoff errors
> from 1-base fixpoint arithmetics). Increasing base is easy now, but it
> means that in
> Any ideas for better version? If not I will go ahead with this variant and
> increase profile probability base.
Why not use GCC wide int?
- David
Hi,
in order to drop frequencies from basic blocks and counts from edges I need
to make probabilities more precise (so we do not get all those roundoff errors
from 1-base fixpoint arithmetics). Increasing base is easy now, but it
means that in temporaries one can get overflows easily.
I need
