[Bug tree-optimization/32375] not vectorized: can't determine dependence (array sections)

[spop at gcc dot gnu dot org]

------- Comment #4 from spop at gcc dot gnu dot org  2007-10-30 17:01 -------
Subject: Re:  not vectorized: can't determine dependence (array sections)

On 1 Jul 2007 12:46:31 -0000, dorit at gcc dot gnu dot org
<gcc-bugzilla@gcc.gnu.org> wrote:
> (dependence classified: scev_not_known)
>

I still see the data dependence problem, but now the loop gets
vectorized on i686-linux with "-O3 -msse2" and also with "-O2
-ftree-vectorize -msse2"

> Looks like a similar problem to PR32378:

The same with this other PR.  The testcase gets vectorized even with
the failed dependence test.

Sebastian


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32375