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Re: [tree-ssa] Garbage collector x bb annotations

They used to be obstack allocated, so consider yourself lucky :P.

You could add a "fields_only" flag and modify gengtype to not mark the
actual bb, only it's fields.

This won't work, since bb structures refer to each other.

So?

If a bb is marked fields_only, and we recursively call the marker routine on the next bb, it's still not going to try to mark that bb.

--
- Geoffrey Keating <geoffk@geoffk.org>

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