[Bug tree-optimization/38328] Massive performance regression for jpeg_idct_islow

[sgunderson at bigfoot dot com]

------- Comment #11 from sgunderson at bigfoot dot com  2008-11-30 22:48 -------
Subject: Re:  Massive performance regression
        for jpeg_idct_islow

On Sun, Nov 30, 2008 at 09:29:29PM -0000, rguenth at gcc dot gnu dot org wrote:
> so it uses -mtune=i486 - this optimizes the multiplication for i486 where imul
> is slow.  The difference to 4.3 is a packaging issue in Debian.

Thanks! I'll file a bug against the package.

/* Steinar */


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38328