No, I didn't.
2014-07-24 16:50 GMT+08:00 Richard Biener :
> On Thu, Jul 24, 2014 at 3:52 AM, Pengfei Yuan <0xcool...@gmail.com> wrote:
>> There are more.
>>
>> In toplev.c:
>> /* One region RA really helps to decrease the code size. */
>> if (flag_ira_region == IRA_REGION_AUTODETECT)
>> f
On Thu, Jul 24, 2014 at 3:52 AM, Pengfei Yuan <0xcool...@gmail.com> wrote:
> There are more.
>
> In toplev.c:
> /* One region RA really helps to decrease the code size. */
> if (flag_ira_region == IRA_REGION_AUTODETECT)
> flag_ira_region
> = optimize_size || !optimize ? IRA_REGION_ON
There are more.
In toplev.c:
/* One region RA really helps to decrease the code size. */
if (flag_ira_region == IRA_REGION_AUTODETECT)
flag_ira_region
= optimize_size || !optimize ? IRA_REGION_ONE : IRA_REGION_MIXED;
In config/i386/i386.c:
* Assignment of ix86_cost
* Decision o
> I guess some optimizations are controlled only by "optimize_size", not
> by the profile.
> Other optimizations are controlled by the profile.
> So this patch does not have very much effectiveness (only 0.9% size
> reduction).
0.9% size reduction counts as very much in compiler developers perspe
> On Wed, Jul 23, 2014 at 2:39 AM, Pengfei Yuan <0xcool...@gmail.com> wrote:
> > In the experiment, about 60% (1019/1699) profile data files are empty
> > (all counters are zero).
>
> Well, but you are globally overriding options even for the parts with
> profile. The whole point of profile-feedb
On Wed, Jul 23, 2014 at 1:04 PM, Pengfei Yuan <0xcool...@gmail.com> wrote:
> I guess some optimizations are controlled only by "optimize_size", not
> by the profile.
I only see tree-inline.c:estimate_move_cost which we should indeed fix,
it could make a significant difference.
One other use in tr
I guess some optimizations are controlled only by "optimize_size", not
by the profile.
Other optimizations are controlled by the profile.
So this patch does not have very much effectiveness (only 0.9% size reduction).
2014-07-23 17:26 GMT+08:00 Richard Biener :
> On Wed, Jul 23, 2014 at 2:39 AM, P
On Wed, Jul 23, 2014 at 2:39 AM, Pengfei Yuan <0xcool...@gmail.com> wrote:
> In the experiment, about 60% (1019/1699) profile data files are empty
> (all counters are zero).
Well, but you are globally overriding options even for the parts with
profile. The whole point of profile-feedback is to ge
In the experiment, about 60% (1019/1699) profile data files are empty
(all counters are zero).
2014-07-22 21:39 GMT+08:00 Richard Biener :
> On Mon, Jul 21, 2014 at 7:13 AM, Pengfei Yuan <0xcool...@gmail.com> wrote:
>> Hi,
>>
>> This patch tunes optimization options based on profile data:
>> * Dis
On Mon, Jul 21, 2014 at 7:13 AM, Pengfei Yuan <0xcool...@gmail.com> wrote:
> Hi,
>
> This patch tunes optimization options based on profile data:
> * Disable PGO options if profile is not available or empty.
> * Optimize for size if profile is available but empty.
Err ... these don't seem interest
Sorry, tabs seems converted to spaces automatically.
Please use the attachment instead.
2014-07-21 13:13 GMT+08:00 Pengfei Yuan <0xcool...@gmail.com>:
> Hi,
>
> This patch tunes optimization options based on profile data:
> * Disable PGO options if profile is not available or empty.
> * Optimize f
Hi,
This patch tunes optimization options based on profile data:
* Disable PGO options if profile is not available or empty.
* Optimize for size if profile is available but empty.
Here is an experiment on Firefox PGO build:
CPU Intel Core i7-4770
RAM 32 GB
12 matches
Mail list logo
