[Bug middle-end/28643] New: redundant phi-node in latch-block prevents vectorization

["dorit at il dot ibm dot com" <gcc-bugzilla at gcc dot gnu dot org>]

Since the fix for PR26969, we now fail to vectorize loops that have redundant
phi-nodes in their (otherwise empty) latch block.
The testcase committed with the PR fix is an example for such a case.
See http://gcc.gnu.org/ml/gcc-patches/2006-08/msg00034.html for more details.


-- 
           Summary: redundant phi-node in latch-block prevents vectorization
           Product: gcc
           Version: 4.2.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: middle-end
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: dorit at il dot ibm dot com
 GCC build triplet: powerpc-linux
  GCC host triplet: powerpc-linux
GCC target triplet: powerpc-linux


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=28643