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[Bug tree-optimization/37542] [4.4 Regression] PRE doesn't simplify during phi-translation



------- Comment #3 from rguenth at gcc dot gnu dot org  2008-09-22 12:20 -------
Current PRE simplifies only a subset of previous PRE - see
tree-ssa-pre.c:fully_constant_expression.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37542


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