[Bug tree-optimization/68707] [6 Regression] testcase gcc.dg/vect/O3-pr36098.c vectorized using VEC_PERM_EXPR rather than VEC_LOAD_LANES

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68707

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|                            |missed-optimization
             Status|UNCONFIRMED                 |ASSIGNED
   Last reconfirmed|                            |2015-12-07
           Assignee|unassigned at gcc dot gnu.org      |rguenth at gcc dot 
gnu.org
   Target Milestone|---                         |6.0
            Summary|testcase                    |[6 Regression] testcase
                   |gcc.dg/vect/O3-pr36098.c    |gcc.dg/vect/O3-pr36098.c
                   |vectorized using            |vectorized using
                   |VEC_PERM_EXPR rather than   |VEC_PERM_EXPR rather than
                   |VEC_LOAD_LANES              |VEC_LOAD_LANES
     Ever confirmed|0                           |1

--- Comment #3 from Richard Biener <rguenth at gcc dot gnu.org> ---
Ok, I will think of some heuristic to drop SLP in favor of interleaving.