Compilation performance comparison of gcc3.4.1 and gcc3.5.0 2004-08-30 on MICO sources

[Paolo Bonzini]

3.4.1 seems to have a problem with the expander at -O2:

>  expand                :   8.79 (26%) usr   0.01 ( 0%) sys   8.90 (24%) wall

So this 3.4.1 bug is somehow work around by gimplification and tree 
optimization, and this masks the 40% difference (which would still be 
there at -O2 if it weren't for the improvement in expander time).

Paolo