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Re: Some thoughts about steerring commitee work
- From: Dorit Nuzman <DORIT at il dot ibm dot com>
- To: Ryan Hill <dirtyepic at gentoo dot org>
- Cc: gcc at gcc dot gnu dot org
- Date: Sun, 17 Jun 2007 11:32:42 +0300
- Subject: Re: Some thoughts about steerring commitee work
> H. J. Lu wrote:
>
> > Why don't we turn on vectorizer at -O3 or even -O2, depending on
> > ISA? I added -ftree-vectorize to BOOT_CFLAGS on x86-64. According to
> > -ftree-vectorizer-verbose=1, there are 82 loops vectorized in
> > gcc source. There are no regressions. There are not much changes
> > in bootstrap time as well as "make check" time.
>
> We have about two dozen cases of packages that break when
> -ftree-vectorize is used. I'm sure there are several more as we tend to
> discourage such bug reports.
>
If you could take the time to find the reduced testcases and file PRs for
these, that would be most appreciated.
thanks,
dorit
> --
> dirtyepic salesman said this vacuum's guaranteed
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>