Hi Jakub,

On Fri, Sep 16, 2016 at 12:50:44AM +0200, Jakub Jelinek wrote:
> As mentioned in the PR, combiner sometimes calls
> purge_all_dead_edges or purge_dead_edges that can invalidate the dominator
> info if it is computed.  Other passes like CSE in that case free the
> dominance info, this patch does the same in the combiner.
> 
> Bootstrapped/regtested on x86_64-linux and i686-linux, ok for trunk?

Okay, but does it need the same for the post-dominators?  Oh, those
never exist longer than a single pass?

Thanks,


Segher

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