How big (and fast) is going to be GCC 8? [part 2]

Martin Liška mliska@suse.cz
Tue Mar 6 18:36:00 GMT 2018


On 03/06/2018 07:16 PM, Bin.Cheng wrote:
> On Tue, Mar 6, 2018 at 5:50 PM, Martin Liška <mliska@suse.cz> wrote:
>> Hi.
>>
>> This is speed comparison of GCC 8 builds compared to my system GCC 7.3.0
>> which is built with PGO bootstrap.
>>
>> I run empty C and C++ source file, tramp3d and the rest are some big beasts
>> from GCC source file. Feel free to suggest another test candidates? Note
>> that first column defines how many times was test run.
> First thanks very much for collecting the data.
> Since we enabled several loop passes at O3 and above levels, some data
> for Ofast might be interesting?

Do you have a nice source file full of loop nests that would test that
properly?

Martin

> 
> Thanks,
> bin
>>
>> Martin



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