[Bug target/30052] [4.2 Regression] possible quadratic behaviour.

[dberlin at gcc dot gnu dot org]

------- Comment #14 from dberlin at gcc dot gnu dot org  2007-03-14 15:12 -------
(In reply to comment #13)
> It's really all PTA memory.
> 
> Mainline:
> 
>  tree PTA              :   0.01 ( 0%) usr   0.00 ( 0%) sys   0.00 ( 0%) wall   
>   40 kB ( 0%) ggc
>  TOTAL                 :   2.18             1.05             3.44             
> 48857 kB
> 
> max. VM usage: 63MB
> 
> 4.2:
> 
>  tree PTA              :  18.41 (88%) usr   1.08 (53%) sys  20.32 (85%) wall   
> 3903 kB ( 8%) ggc
>  TOTAL                 :  20.92             2.02            23.94             
> 48672 kB
> 
> max. VM usage: 1.1GB
> 
> 4.1.2 uses 56MB.
I'll backport the changes (this is more or less copying tree-ssa-structalias.c
from 4.3 to 4.2 and modifying the few things that changed in 4.3 :P)

> 


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30052