[Bug tree-optimization/34416] Tree optimization pipeline needs re-tuning

pinskia at gmail dot com gcc-bugzilla@gcc.gnu.org
Mon Dec 10 12:04:00 GMT 2007



------- Comment #1 from pinskia at gmail dot com  2007-12-10 12:04 -------
Subject: Re:  New: Tree optimization pipeline needs re-tuning

On 10 Dec 2007 10:07:09 -0000, rguenth at gcc dot gnu dot org
<gcc-bugzilla@gcc.gnu.org> wrote:
>  - run DCE after vectorization, the IL is completely hosed for
>    tree based costs otherwise (affects unrolling costs)

This is already done:
          NEXT_PASS (pass_vectorize);
            {
              struct tree_opt_pass **p = &pass_vectorize.sub;
              NEXT_PASS (pass_lower_vector_ssa);
              NEXT_PASS (pass_dce_loop);
            }

Thanks,
Andrew Pinski


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34416



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