Hunting for performance regressions in libstdc++

[Dan Kegel]

Jonathan Wakely wrote:
>>You aren't, by any chance, using std::set::insert() with hints ?
>>
>>We changed the behaviour of that function recently to conform to the
>>standard, which contradicts the traditional meaning of the hint. If
>>you are supplying a hint that points just before the insertion point
>>you will not get any speed-up.
> 
> 
> Paolo kindly pointed out to me that the mail I quoted includes
> "gcc-3.4.3's libstdc++" which means that a change we made in 4.0.0
> can't be related!
> 
> Can I plead stupidity as a defence?  ;)

Only if I can :-)

FWIW I'm bringing the app up slowly on gcc-4.0 / gcc-4.1, too,
and am hoping I can catch a few performance regressions in gcc-4.1
before it's released.
- Dan

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