> On Tue, Nov 23, 2021 at 6:52 AM Xionghu Luo wrote:
> >
> > r12-4526 cancelled jump thread path rotates loop. It exposes a issue in
> > profile-estimate when predict_extra_loop_exits, outer loop's exit edge
> > is marked as inner loop's extra loop exit and set with incorrect
> > prediction, then
On Tue, Nov 23, 2021 at 6:52 AM Xionghu Luo wrote:
>
> r12-4526 cancelled jump thread path rotates loop. It exposes a issue in
> profile-estimate when predict_extra_loop_exits, outer loop's exit edge
> is marked as inner loop's extra loop exit and set with incorrect
> prediction, then a hot inner
On 2021/11/23 13:51, Xionghu Luo wrote:
> r12-4526 cancelled jump thread path rotates loop. It exposes a issue in
> profile-estimate when predict_extra_loop_exits, outer loop's exit edge
> is marked as inner loop's extra loop exit and set with incorrect
> prediction, then a hot inner loop will
r12-4526 cancelled jump thread path rotates loop. It exposes a issue in
profile-estimate when predict_extra_loop_exits, outer loop's exit edge
is marked as inner loop's extra loop exit and set with incorrect
prediction, then a hot inner loop will become cold loop finally through
optimizations,
