Re: [avr-gcc-list] Re: C vs. assembly performance

[Georg-Johann Lay]

Weddington, Eric schrieb:
>  
>
>
> > -----Original Message-----
> > From: 
> > address@hidden 
> > [mailto:address@hidden
> > org] On Behalf Of Georg-Johann Lay
> > Sent: Saturday, February 28, 2009 9:00 AM
> > To: Nicholas Vinen
> > Cc: address@hidden
> > Subject: Re: [avr-gcc-list] Re: C vs. assembly performance
> >
> >
> > Note that this may partially be covered by report 145284 
> > (which I cannot 
> > find, maybe Eric has closed/removed it)

Sorry, my mistake. I wrote the patch because I saw gcc 4 making bad code 
(campared with 3.4.6) and read some bad-optimization reports that 
address the subject on similar code.

It was not initiated by a specific report. However, several bug reports 
on "performance regression" will be fixed/get some release by that patch.

> I'm sorry, but on which project?

BTW, is there a reason why there is more than one bug list? I saw a 
third, but cannot find it again (maybe just a view on the sourceforge list).

http://www.nongnu.org/avr-libc/bugs.html
http://sourceforge.net/tracker2/?group_id=68108&atid=520074

Georg-Johann