[Bug tree-optimization/63568] Missed optimization (a & ~mask) | (b & mask) = a ^ ((a ^ b) & mask)

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63568

Richard Biener <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2014-10-17
                 CC|                            |rguenth at gcc dot gnu.org
     Ever confirmed|0                           |1

--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> ---
Looks like three vs. four ops and thus is simpler in general.  Easy to
implement
as simplification on match-and-simplify branch.