How big (and fast) is going to be GCC 8?

[Martin Liška]

On 03/06/2018 04:13 PM, David Malcolm wrote:
> On Tue, 2018-03-06 at 11:14 +0100, Martin Liška wrote:
>> Hello.
>>
>> Many significant changes has landed in mainline and will be released
>> as GCC 8.1.
>> I decided to use various GCC configs we have and test how there
>> configuration differ
>> in size and also binary size.
>>
>> This is first part where I measured binary size, speed comparison
>> will follow.
>> Configuration names should be self-explaining, the 'system-*' is
>> built done
>> without bootstrap with my system compiler (GCC 7.3.0). All builds are
>> done
>> on my Intel Haswell machine.
>>
>> Feel free to reply if you need any explanation.
>> Martin
> 
> Some possibly silly questions:

Hi David.

All of them are qualified!

> 
> (a) was this done with:
>    --enable-checking=release ?

Yes.

> 
> (b) is this measuring cc1 ?

cc1plus. Let me also add cc1 when I'll have run-time numbers.

> 
> (c) are the units bytes?  (so ~183MB for the unstripped system-O2-
> native cc1, ~25MB after stripping?)

Yes, in bytes. Would be nicer to have it in MB ;) It would be easily
readable. I'll fix that.

> 
> (d) do you have comparable data for gcc 7?

Will build corresponding builds for GCC 7 tonight.

Martin

> 
> Thanks
> Dave
>