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:
> > Maybe you can identify the single most increase for ppc?
>
> The ranking is:
>
>                      compile
>
>              06/15     06/08    %
>
> channel      4.289     2.519   70
> induct      36.878    23.671   56
> protein     20.097    13.162   53
> nf           5.412     3.629   49
> fatigue     12.843     8.733   47
> ac           6.098     4.169   46
> gas_dyn     11.856     8.168   45
> test_fpu    17.098    12.034   42
> rnflow      19.812    14.370   38
> doduc       37.700    28.040   34
> capacita     7.332     5.542   32
> aermod     266.403   205.639   30
> tfft         2.530     1.938   31
> mdbx         9.052     7.036   28
> air         14.773    11.925   24
> linpk        2.419     1.979   22
>
> % = 100*(t0615/t0608-1)
>
> So the worst increase is for channel (ironically this has always been
> the strongest gfortran result!), but all tests show an increase above
> 20%.

Btw, is this a compiler with checking enabled?  If so try comparing
numbers with --enable-checking=release.

Richard.