haifa life change

Franz Sirl Franz.Sirl-kernel@lauterbach.com
Sun Oct 31 23:33:00 GMT 1999


Am Fre, 15 Okt 1999 schrieb Richard Henderson:
>On Thu, Oct 14, 1999 at 11:11:04PM +0200, Franz Sirl wrote:
>> >Yet it is the same code doing the calculation -- that was the
>> >whole point of the patch.  What changed?  Why didn't flow2
>> >decide that r12 is dead?
>> 
>> I think it's some kind of memory corruption....
>
>Nope, I was still able to reproduce the problem with an x86
>cross compiler.
>
>Turns out to be that propogate_block wasn't correctly setting
>up bb->local_set, so we stopped global propogation too early. 
>I think this has been incorrect since the beginning of time;
>certainly I have no explanation as to why things seemed to
>have worked before.
>
>Fixed thus.

Yes, thanks. The powerpc-linux-gnu port is back in good shape now again :-).

Franz.



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