patch that caused regression PR opt/9357

[Andreas Jaeger]

Janis Johnson <janis187@us.ibm.com> writes:

> The regression reported in PR optimization/9357 (which affects GCC 3.3)

As just mentioned on gcc-bugs: The problem is -fssa and this is not
supported yet AFAIK.  I suspect that Honza's patch just revealed
another bug in -fssa.

Shouldn't we disable -fssa for now?

Andreas

> showed up with this patch:
>
> Sat Oct 27 12:12:09 CEST 2001  Jan Hubicka  <jh@suse.cz>
>
>         * cfgcleanup.c (merge_blocks_move_predecessor_nojumps,
>         merge_blocks_move_successors_nojumps): Set BB_UPDATE_LIFE.
>         (merge_blocks): Properly udpate life after making edge nonfallthru.
>         * cfgrtl.c (merge_blocks_nomove): Update global_live_at_end.
>
> I used the minimized test case test case and compiler options shown in
> the PR.
>
> This information has been added to GNATS.
>
> Janis
>

-- 
 Andreas Jaeger
  SuSE Labs aj@suse.de
   private aj@arthur.inka.de
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