[Bug rtl-optimization/34171] [4.3 Regression] Segfault in df_chain_remove_problem with -O3 on alpha

spark at gcc dot gnu dot org gcc-bugzilla@gcc.gnu.org
Wed Nov 21 16:22:00 GMT 2007



------- Comment #7 from spark at gcc dot gnu dot org  2007-11-21 16:22 -------
(In reply to comment #6)
> Subject: Re:  [4.3 Regression] Segfault in df_chain_remove_problem
>  with -O3 on alpha
> 
> So it means the basic block has been deleted.
> 
> I want to see what happens if I consolidate all the 
> out_of_date_transfer_functions bitmaps into one.  Seongbae, do you 
> remember experimenting with anything like that?
> 
> Paolo

Not really. 
I agree that it's most likely a bb being deleted though.
I guess somebody will have to trace through using a debugger 
I'll try to build a cross to alpha and see if I can reproduce the problem
today.


-- 

spark at gcc dot gnu dot org changed:

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         AssignedTo|unassigned at gcc dot gnu   |spark at gcc dot gnu dot org
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34171



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