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Re: [PATCH] Remove basic_block->loop_depth
On Tue, 14 Aug 2012, Steven Bosscher wrote:
> On Tue, Aug 14, 2012 at 12:48 PM, Richard Guenther <rguenther@suse.de> wrote:
> > If SPU md reorg would like to look at loop structures it should
> > compute them. Simply call flow_loops_find, which hopefully works
> > in CFG RTL mode (which I think is the mode available from md reorg?).
>
> No, the CFG is destroyed just before MD reorg, because most MD reorgs
> are not CFG aware.
>
> But some back-ends re-surrect it (bfin, ia64, c6x, etc...), and do
> compute loops (c6x at least).
I suppose we could push down freeing the CFG to the individual MD
reorgs and make the default MD reorg simply free the CFG ...
Richard.