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Re: material for 3.1 release announcement


> 
> Ideally those having contributed the improvements would write something.

Hope so :)

> 
> > Perhaps we can just mention that the spec2000 results are better by
> > about 6% on -O2 level of optimizations (8.2% with PDO) compared to gcc
> > 3.0, while gcc 3.0 improved by 2.1% compared to gcc 2.95 according to
> > the Andreas tester.
> 
> Yes, please add this (probably under "General Optimizer Improvements").

Here is an attempt to do so.

Index: gcc-3.1/changes.html
===================================================================
RCS file: /cvs/gcc/wwwdocs/htdocs/gcc-3.1/changes.html,v
retrieving revision 1.27
diff -c -3 -p -r1.27 changes.html
*** gcc-3.1/changes.html	3 May 2002 12:25:35 -0000	1.27
--- gcc-3.1/changes.html	3 May 2002 13:20:24 -0000
***************
*** 37,42 ****
--- 37,53 ----
        the generated code by profiling the actual program behaviour on typical
        runs.  In the absence of profile info the compiler attempts to guess the
        profile statically.</p>
+ 
+       <li><p><a HREF="http://www.suse.de/~aj/SPEC";>SPEC2000</a> and <a
+       HREF="http://people.redhat.com/dnovillo/SPEC";>SPEC95</a> benchmark suites
+       are now used daily to monitor performance of the generated code to avoid
+       performance regressions to leak into compiler and stay unnoticed.</p>
+ 
+       <p>According to the SPECInt2000 results on AMD Athlon CPU, the code
+       generated by GCC 3.1.0 is at the average 6% faster (8.2% faster with
+       profile feedback) compared to GCC 3.0.0.  The code produced by GCC 3.0.0
+       is about 2.1% faster compared to 2.95.3.  Tests were done with <code>-O2
+       -march=athlon</code> command line options.</p>
  </ul>
  
    


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