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Re: decrement and branch optimization broken?
> Hi,
>
> Jan Hubicka wrote:
>
> > gcc now does have new dbra code in loop.c. You may see i386 loop instruction
> > about how to generate them correctly (note that using loop instruction on i386
> > in gcc3.0 causes bootstrap failure, so there may be bug lurking around - I would
> > suggest you first stabilize bootstrap and then try this).
>
> The bootstrap now fails during compare...
> I started a new bootstrap, but until then I can debug other stuff. BTW
> is the patch to speedup cleanup_cfg already integrated? Even the build
Yes.
> on i686 needs longer (from ca. 25 to 35 minutes), now imagine a poor
> m68k. :)
If you can manage to find the purpose, I would be happy.
My cfg_cleanup code don't seems to be problem anymore.
Honza