[Bug middle-end/18499] [4.0 Regression] quadratic behavior in cfgexpand

[steven at gcc dot gnu dot org]

------- Additional Comments From steven at gcc dot gnu dot org  2004-11-15 10:34 -------
Perhaps we should have an edge flag to mark edges dead, then walk the 
entire CFG visiting all succ edges once (marking the dead ones) and 
have a function remove_many_edges() in cfg.c to kill marked edges... 
 
 

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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18499