Re: freeze exception for gcc-4.5 (i386, amd64 only)

[Mike Hommey <mh@glandium.org>]

On Mon, Aug 23, 2010 at 11:41:40AM +0200, Matthias Klose wrote:
> On 23.08.2010 10:03, Mike Hommey wrote:
> >On Mon, Aug 23, 2010 at 04:05:32AM +0200, Matthias Klose wrote:
> >>On 21.08.2010 14:56, Julien Cristau wrote:
> >>>On Fri, Aug 20, 2010 at 19:33:12 +0200, Arthur Loiret wrote:
> >>>
> >>>>Now, to be clear, what nice things would gcc-4.5 bring to our users?
> >>>>There is a complete list here [0], but those ones are, in my opinion,
> >>>>very nice:
> >>>>  - The new link time optimiser.
> >>>>  - Improved C++0x support.
> >>>>  - Plugins support.
> >>>>
> >>>My understanding is that lto in 4.5 is not quite there yet.  Not that
> >>>I've tried it or anything.
> >>
> >>I don't share your understanding. I tried it for some builds.
> >
> >Maybe it works on small things, but I heard it doesn't work very well
> >for stuff like mozilla. 4.6 is supposed to get better.
> 
> well, mozilla is not the average package regarding complexity.  It
> does work well with medium size packages like the python
> interpreter, after modifying the build system, showing no
> regressions in the python testsuite.  so while 4.6 will be better,
> 4.5 does work for many cases.

Well, maybe it works for python, or at least it doesn't break it, but
does it really works as intended, by actually making things better, and
not worse, generated-code-wise ?

Mike