[Bug tree-optimization/43984] PRE misses full-redundancies, inserts into loops

[matz at gcc dot gnu dot org]

------- Comment #6 from matz at gcc dot gnu dot org  2010-05-05 13:32 -------
PRE seems to have done this since forever.  All edge inserts are delayed if
the _immediate forms aren't used.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43984