[Bug tree-optimization/21639] poisoned ggc memory used for -ftree-vectorize

[rakdver at atrey dot karlin dot mff dot cuni dot cz]

------- Additional Comments From rakdver at atrey dot karlin dot mff dot cuni dot cz  2005-05-24 15:06 -------
Subject: Re:  poisoned ggc memory used for -ftree-vectorize

> >there are several places in loop opts that are not GGC-safe (in
> >particular the tree nodes refered from loop structures are not
> >seen by garbage collector, and I think there are some other instances).
> >
> >So at the moment, you cannot run ggc_collect inside loop opts.
> >  
> >
> Is this going to change?
> 
> If not, I guess removing TODO_ggc_collect is the simpliest thing to do.  
> But then please a PR on this should be opened, or this one should be 
> modified appropriately, as an enhancement request for making loop 
> optimizations GGC-safe.

It will need some work (most of the loop structures are mallocated at
the moment), so this might indeed be a good idea.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21639