loop split condition is moved between loop1 and loop2, the split bb's
count and probability should also be duplicated instead of (100% vs INV),
secondly, the original loop1 and loop2 count need be propotional from the
original loop.
Regression tested pass, OK for master?
diff base/loop-cond-split
I' like to split this patch:
https://gcc.gnu.org/pipermail/gcc-patches/2021-August/576488.html
to two patches:
0001-Fix-loop-split-incorrect-count-and-probability.patch
0002-Don-t-move-cold-code-out-of-loop-by-checking-bb-coun.patch
since they are solving two different things, please help to r
On Tue, 3 Aug 2021, Xionghu Luo wrote:
> loop split condition is moved between loop1 and loop2, the split bb's
> count and probability should also be duplicated instead of (100% vs INV),
> secondly, the original loop1 and loop2 count need be propotional from the
> original loop.
>
> Regression te
Thanks,
On 2021/8/6 19:46, Richard Biener wrote:
> On Tue, 3 Aug 2021, Xionghu Luo wrote:
>
>> loop split condition is moved between loop1 and loop2, the split bb's
>> count and probability should also be duplicated instead of (100% vs INV),
>> secondly, the original loop1 and loop2 count need be
dje@gmail.com
Subject: Re: [PATCH] Fix loop split incorrect count and probability
On Tue, 3 Aug 2021, Xionghu Luo wrote:
> loop split condition is moved between loop1 and loop2, the split bb's
> count and probability should also be duplicated instead of (100% vs INV),
> secondly,
On Mon, 9 Aug 2021, Xionghu Luo wrote:
> Thanks,
>
> On 2021/8/6 19:46, Richard Biener wrote:
> > On Tue, 3 Aug 2021, Xionghu Luo wrote:
> >
> >> loop split condition is moved between loop1 and loop2, the split bb's
> >> count and probability should also be duplicated instead of (100% vs INV),
>
...@ucw.cz
Subject: Re: [PATCH] Fix loop split incorrect count and probability
On Mon, 9 Aug 2021, Xionghu Luo wrote:
> Thanks,
>
> On 2021/8/6 19:46, Richard Biener wrote:
> > On Tue, 3 Aug 2021, Xionghu Luo wrote:
> >
> >> loop split condition is moved between l
On 2021/8/10 22:47, Richard Biener wrote:
> On Mon, 9 Aug 2021, Xionghu Luo wrote:
>
>> Thanks,
>>
>> On 2021/8/6 19:46, Richard Biener wrote:
>>> On Tue, 3 Aug 2021, Xionghu Luo wrote:
>>>
loop split condition is moved between loop1 and loop2, the split bb's
count and probability sho
On Wed, 11 Aug 2021, Xionghu Luo wrote:
>
>
> On 2021/8/10 22:47, Richard Biener wrote:
> > On Mon, 9 Aug 2021, Xionghu Luo wrote:
> >
> >> Thanks,
> >>
> >> On 2021/8/6 19:46, Richard Biener wrote:
> >>> On Tue, 3 Aug 2021, Xionghu Luo wrote:
> >>>
> loop split condition is moved between
On 2021/8/11 17:16, Richard Biener wrote:
On Wed, 11 Aug 2021, Xionghu Luo wrote:
On 2021/8/10 22:47, Richard Biener wrote:
On Mon, 9 Aug 2021, Xionghu Luo wrote:
Thanks,
On 2021/8/6 19:46, Richard Biener wrote:
On Tue, 3 Aug 2021, Xionghu Luo wrote:
loop split condition is moved be
On 2021/8/11 17:16, Richard Biener wrote:
On Wed, 11 Aug 2021, Xionghu Luo wrote:
On 2021/8/10 22:47, Richard Biener wrote:
On Mon, 9 Aug 2021, Xionghu Luo wrote:
Thanks,
On 2021/8/6 19:46, Richard Biener wrote:
On Tue, 3 Aug 2021, Xionghu Luo wrote:
loop split condition is moved be
On Wed, 22 Sep 2021, Xionghu Luo wrote:
>
>
> On 2021/8/11 17:16, Richard Biener wrote:
> > On Wed, 11 Aug 2021, Xionghu Luo wrote:
> >
> >>
> >>
> >> On 2021/8/10 22:47, Richard Biener wrote:
> >>> On Mon, 9 Aug 2021, Xionghu Luo wrote:
> >>>
> Thanks,
>
> On 2021/8/6 19:46, Ric
On 2021/9/23 20:17, Richard Biener wrote:
> On Wed, 22 Sep 2021, Xionghu Luo wrote:
>
>>
>>
>> On 2021/8/11 17:16, Richard Biener wrote:
>>> On Wed, 11 Aug 2021, Xionghu Luo wrote:
>>>
On 2021/8/10 22:47, Richard Biener wrote:
> On Mon, 9 Aug 2021, Xionghu Luo wrote:
>
>>>
On 2021/10/15 13:51, Xionghu Luo via Gcc-patches wrote:
>
>
> On 2021/9/23 20:17, Richard Biener wrote:
>> On Wed, 22 Sep 2021, Xionghu Luo wrote:
>>
>>>
>>>
>>> On 2021/8/11 17:16, Richard Biener wrote:
On Wed, 11 Aug 2021, Xionghu Luo wrote:
>
>
> On 2021/8/10 22:47, Ri
On Thu, 21 Oct 2021, Xionghu Luo wrote:
>
>
> On 2021/10/15 13:51, Xionghu Luo via Gcc-patches wrote:
> >
> >
> > On 2021/9/23 20:17, Richard Biener wrote:
> >> On Wed, 22 Sep 2021, Xionghu Luo wrote:
> >>
> >>>
> >>>
> >>> On 2021/8/11 17:16, Richard Biener wrote:
> On Wed, 11 Aug 2021,
On 2021/10/21 18:55, Richard Biener wrote:
> On Thu, 21 Oct 2021, Xionghu Luo wrote:
>
>>
>>
>> On 2021/10/15 13:51, Xionghu Luo via Gcc-patches wrote:
>>>
>>>
>>> On 2021/9/23 20:17, Richard Biener wrote:
On Wed, 22 Sep 2021, Xionghu Luo wrote:
>
>
> On 2021/8/11 17:16, Ri
On Tue, 26 Oct 2021, Xionghu Luo wrote:
>
>
> On 2021/10/21 18:55, Richard Biener wrote:
> > On Thu, 21 Oct 2021, Xionghu Luo wrote:
> >
> >>
> >>
> >> On 2021/10/15 13:51, Xionghu Luo via Gcc-patches wrote:
> >>>
> >>>
> >>> On 2021/9/23 20:17, Richard Biener wrote:
> On Wed, 22 Sep 2021,
> On Tue, 26 Oct 2021, Xionghu Luo wrote:
>
> >
> >
> > On 2021/10/21 18:55, Richard Biener wrote:
> > > On Thu, 21 Oct 2021, Xionghu Luo wrote:
> > >
> > >>
> > >>
> > >> On 2021/10/15 13:51, Xionghu Luo via Gcc-patches wrote:
> > >>>
> > >>>
> > >>> On 2021/9/23 20:17, Richard Biener wrote:
>
> >
> That said, likely the profile update cannot be done uniformly
> for all blocks of a loop?
For the loop:
for (i = 0; i < n; i = inc (i))
{
if (ga)
ga = do_something ();
}
to:
for (i = 0; i < x; i = inc (i))
{
if (true)
ga = do_something ();
if (!ga
On 2021/10/26 21:05, Jan Hubicka wrote:
>>>
>
>> That said, likely the profile update cannot be done uniformly
>> for all blocks of a loop?
>
> For the loop:
>
> for (i = 0; i < n; i = inc (i))
> {
> if (ga)
> ga = do_something ();
> }
>
> to:
>
> for (i = 0; i < x; i =
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