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Re: [lno] Introduce data dependence graph


On Feb 13, 2004, at 11:55 PM, Devang Patel wrote:

This patch introduces data dependence graph based on Sebastian's scalar
evolution analyzer. This is just a start. At this point APIs are not
available to access dependence info from the graph. I will soon start
adding them. I've introduced new flag -ftree-ddg to enable it. But it
will not last forever.

Bootstrapped on powerpc-apple-darwin7.2.0 with "-fscalar-evolutions -ftree-ddg".
DejaGNU test run is in progress.


Is there some good reason you aren't using an alloc pool for the fixed size dependence_node_def and dependence_edge structures?
It would get rid of a lot of GTY'ing, and a lot of ggc_allocing.

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