This is the mail archive of the gcc@gcc.gnu.org mailing list for the GCC project.


Index Nav: [Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav: [Date Prev] [Date Next] [Thread Prev] [Thread Next]
Other format: [Raw text]

Re: question about the ddg construction


On Thu, Jul 3, 2008 at 11:27 PM, Steven Bosscher <stevenb.gcc@gmail.com> wrote:
> On Fri, Jul 4, 2008 at 1:25 AM, Tianwei <tianwei.sheng@gmail.com> wrote:
>> it won't query the aliaser for more precise information, maybe the
>> code is a little older.
>
> Not at all, the DDG file is for the SMS pass which is relatively new.
> One of the problems is that you can't really compute a dependence
> distance on RTL, so for memory the DDG is just very conservative.
>
> You're not telling anything new, you know ;-)  You probably want to
> read http://gcc.gnu.org/wiki/SwingModuloScheduling too,
Steven, thanks so much. that's really helpful.
>
> Gr.
> Steven
>



-- 
Sheng, Tianwei
Inst. of High Performance Computing
Dept. of Computer Sci. & Tech.
Tsinghua Univ.


Index Nav: [Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav: [Date Prev] [Date Next] [Thread Prev] [Thread Next]