[Bug tree-optimization/38464] New: vect/costmodel/ppc/costmodel-slp-12.c fails to vectorize

["janis at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>]

Test gcc.dg/vect/costmodel/ppc/costmodel-slp-12.c was added in GCC 4.3.0 and
continues to pass on the branch.  On mainline it started failing the scans of
the vectorization dumps with r138815:

2008-08-06  Victor Kaplansky  <victork@il.ibm.com>
            Ira Rosen  <irar@il.ibm.com>

        * tree-vect-transform.c (vect_model_simple_cost): Return
        immediately if stmt is pure SLP.
        (vect_model_store_cost): Ditto.
        (vect_model_load_cost): Ditto. 
        (vectorizable_store): Remove PURE_SLP check before call
        to vect_model_store_cost.
        (vect_model_store_cost): When checking whether stmt describe
        strided access, add a check that it is not slp_node.

The testresult archives show that it fails on powerpc* for linux, aix, darwin,
and eabisim.  for powerpc64-linux it fails with both -m32 and -m64.


-- 
           Summary: vect/costmodel/ppc/costmodel-slp-12.c fails to vectorize
           Product: gcc
           Version: 4.4.0
            Status: UNCONFIRMED
          Keywords: missed-optimization, TREE
          Severity: normal
          Priority: P3
         Component: tree-optimization
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: janis at gcc dot gnu dot org
GCC target triplet: powerpc*-*-*


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38464