[Bug rtl-optimization/33224] failing rtl iv analysis (maybe due to df)

dorit at gcc dot gnu dot org gcc-bugzilla@gcc.gnu.org
Thu Aug 30 08:13:00 GMT 2007



------- Comment #3 from dorit at gcc dot gnu dot org  2007-08-30 08:12 -------
(In reply to comment #2)
> I suspect this might be due to not updating the rd information after unrolling.
> Can you check if 
> analyze_insns_in_loop() (which calls df_analyze()) is being called just before
> the problematic unrolling ?

it looks like it's called just before the unroller actually transforms
somthing, but not before the (failing) analysis. But when I add a call to it in
decide_peel_completely the analysis still fails.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33224



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