[Bug tree-optimization/58776] New: [4.9 Regression]: gcc.dg/tree-ssa/gen-vect-32.c scan-tree-dump-times vect "vectorized 1 loops" 1

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

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58776

            Bug ID: 58776
           Summary: [4.9 Regression]: gcc.dg/tree-ssa/gen-vect-32.c
                    scan-tree-dump-times vect "vectorized 1 loops" 1
           Product: gcc
           Version: 4.7.0
            Status: UNCONFIRMED
          Keywords: missed-optimization
          Severity: normal
          Priority: P3
         Component: tree-optimization
          Assignee: unassigned at gcc dot gnu.org
          Reporter: hp at gcc dot gnu.org
                CC: davidxl at gcc dot gnu.org
              Host: x86_64-unknown-linux-gnu
            Target: cris-axis-elf

This test previously passed, now it fails.
A patch in the revision range (last_known_working:first_known_failing)
202971:202981 (most likely r202980)
exposed or caused this regression.  Since then it fails as follows:

Running /tmp/hpautotest-gcc1/gcc/gcc/testsuite/gcc.dg/tree-ssa/tree-ssa.exp ...
...
FAIL: gcc.dg/tree-ssa/gen-vect-32.c scan-tree-dump-times vect "vectorized 1
loops" 1

No hints from gcc.log.  Committer of r202980 CC:ed.

Adjustment like those in PR58556 and
<http://gcc.gnu.org/ml/gcc-patches/2013-10/msg01439.html> did not help; there
may be a larger issue here.