[Bug rtl-optimization/23524] bigger version of mov + cmp produced

[pinskia at physics dot uc dot edu]

------- Additional Comments From pinskia at physics dot uc dot edu  2005-08-23 18:07 -------
Subject: Re:  bigger version of mov + cmp produced


On Aug 23, 2005, at 2:06 PM, dann at godzilla dot ics dot uci dot edu 
wrote:

>
> ------- Additional Comments From dann at godzilla dot ics dot uci dot 
> edu  2005-08-23 18:05 -------
> (In reply to comment #2)
>> You really should know that we only care about code size at -Os.  We 
>> care
> about performance
>> regressions though at -O2.
>
> Code size is important for performance for modern processors. Small 
> I-cache (and
> I-TLB) footprint for otherwise equivalent code results in better 
> performance.

Then use -Os every where instead.  You will see that the overall code 
size for 4.1
has reduced from 4.0.

-- Pinski



-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23524