[Bug tree-optimization/18601] [4.0 Regression] cfglceanup is slow

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2004-11-21 
21:15 -------
Most (95%) of the time is spent updating the dominator information.

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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18601