On 07/13/2016 04:15 PM, Richard Biener wrote:
> so not exactly a 50/50 prediction. It is predicted by early return
> predictor it seems. If I make the predictor not apply we predict
> it as 50/50 chance. Hmm. Honza?
Yes, following test-case eliminates the early return predictor:
int foo(int x
On Wed, 13 Jul 2016, Alexander Monakov wrote:
> Hi,
>
> On Wed, 13 Jul 2016, Richard Biener wrote:
> > The following adds the ability to transform
> >
> > if (x != 0)
> >x = x / 10;
> >
> > to
> >
> > x = x / 10;
> >
> > as requested by PR. Plus it adds some more ops where such transfo
Hi,
On Wed, 13 Jul 2016, Richard Biener wrote:
> The following adds the ability to transform
>
> if (x != 0)
>x = x / 10;
>
> to
>
> x = x / 10;
>
> as requested by PR. Plus it adds some more ops where such transform
> is possible.
In the bugzilla, you said,
> Only for -Os, it's bette
The following adds the ability to transform
if (x != 0)
x = x / 10;
to
x = x / 10;
as requested by PR. Plus it adds some more ops where such transform
is possible.
Bootstrapped and tested on x86_64-unknown-linux-gnu, applied to trunk.
Richard.
2016-07-13 Richard Biener
PR
