[Bug tree-optimization/26854] Inordinate compile times on large routines

["zadeck at naturalbridge dot com" <gcc-bugzilla at gcc dot gnu dot org>]

------- Comment #57 from zadeck at naturalbridge dot com  2008-01-18 02:10 -------
Subject: Re:  Inordinate compile times on large
 routines

lucier at math dot purdue dot edu wrote:
> ------- Comment #56 from lucier at math dot purdue dot edu  2008-01-18 01:38 -------
> gcc is now 5-6 times faster than it was nearly two years ago when this was
> first reported; many changes have made significant improvements in cpu time.
>
> But Steven Bosscher's patch from December still improved things more on this
> test case.
>
> In particular, on 12/20/2007, without the patch, CPU time from
>
> http://gcc.gnu.org/bugzilla/attachment.cgi?id=14799
>
> was
>
>  TOTAL                 : 300.21            19.16           319.52            
> 778432 kB
>
> After Steven Bosscher's patch
>
> http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34400#c28
>
> it was
>
>  TOTAL                 : 210.97            15.80           226.88            
> 778432 kB
>
> and today it's
>
>  TOTAL                 : 281.08            18.03           299.41            
> 776514 kB
>
> Would it still be a good idea to apply Steven's patch?
>
>
>   
the plan is to apply all of the patches,  they each deal with a
different problem and the improvement should be additive.

kenny


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26854