[Bug tree-optimization/15458] Combine ~ and ^.

[pinskia at gcc dot gnu dot org]

------- Comment #4 from pinskia at gcc dot gnu dot org  2005-11-30 17:32 -------
Actually it is better for ~(a ^ CST) to come out as a ^ ~CST.

Right now we actually already implement ~(a^CST) as a ^ ~CST.  So we need just
to implement (~a) ^ CST as a ^ ~CST.  In fact this is what simplify_rtx does.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15458