GCC 4.0 vs. 3.5

Mark Mitchell mark@codesourcery.com
Sat Apr 17 18:58:00 GMT 2004


Roger Sayle wrote:

>On Fri, 16 Apr 2004, Mark Mitchell wrote:
>  
>
>>So, if we're switching to 4.0 it should be because the code we generate
>>is far better.  Not that some code is slightly better, or that we have
>>the infrastructure we need to generate far better code -- but that much
>>actual code is actually far better.
>>    
>>
>
>
>I guess the recent thread "100% speed improvement 3.4 -> 3.5 for ia64!"
>http://gcc.gnu.org/ml/gcc/2004-04/msg00646.html might support the 4.0
>argument?  :>
>  
>
Yes, it might.

In my mind, we really need to see a comprehensive analysis that 
demonstrates a win.  Every release has *some* dramatic improvement on 
some code.

I'm not a disbeliever -- I  just think the jury is still out.

-- 
Mark Mitchell
CodeSourcery, LLC
(916) 791-8304
mark@codesourcery.com



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