------- Comment #3 from rguenth at gcc dot gnu dot org  2008-01-03 15:17 -------
forwprop with the help of fold now simplifies the second comparison to

  if (b_2(D) == c_3(D))

and VRP gets rid of the function body and optimizes it to return zero.  We have
a similar testcase excercising the forwprop transformation in
gcc.dg/tree-ssa/forwprop-3.c.

This was fixed by

http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=129256


-- 

rguenth at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|                            |FIXED
   Target Milestone|---                         |4.3.0


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26400

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