[Bug middle-end/23666] Fold does not reduce C - ~a into a + (C+1)

[pinskia at gcc dot gnu dot org]

------- Comment #5 from pinskia at gcc dot gnu dot org  2005-11-26 22:38 -------
Actually there is two things that need to be done, first is what I said in
comment # 4 and then the second thing is for MINUS_EXPR to use those functions
instead of checking explicatly for NEGATE_EXPR.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23666