[Bug tree-optimization/16158] [3.5 Regression] O(N^2) in tree-ssa-pre.c

[dberlin at dberlin dot org]

------- Additional Comments From dberlin at dberlin dot org  2004-07-13 17:56 -------
Subject: Re:  [3.5 Regression] O(N^2) in tree-ssa-pre.c

>>
>> This is *not* a 3.5 regression, because tree-ssa-pre.c didn't exist
>> before 3.5
>> :)
>
> But the compile time is a regression though so that makes it a 
> regression.
>
> :)
>
There is no compile time regression for this case anymore.
PRE takes no timeable amount of time anymore (with checking off. With 
checking on, it's 0% or 1%, at 0.1 seconds)



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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=16158