Severe increase in compilation time with 4.3.0 20070615 on powerpc-apple-darwin7

[Richard Guenther]

On 6/20/07, Dominique Dhumieres <dominiq@lps.ens.fr> wrote:
> Exctracted from http://www.suse.de/~gcctest/c++bench/polyhedron/polyhedron-summary.txt:
>
> date   compile execute
>
> 070608  106.29  628.74
> 070615  117.43  629.73
> 070620  105.95  616.99
>
> So these tests show a ~10% increase of the compilation time
> from 070612 to 070618.  I have forgotten to mention that my timings
> were done on a 1.8Ghz G5 with 512k of cache. My observation is that
> when something goes wrong on the x86 family it is several time worse
> on the PPC. This is particularly important when cache misses are involved.
>
> So I'll wait for the next snapshot and report what I see.

So this looks like the df-branch merge where a increase in compile-time was
expected.  Maybe you can identify the single most increase for ppc?

Richard.