[gfortran] Fix NULL reference types.

Nathan Sidwell nathan@codesourcery.com
Thu Aug 19 08:53:00 GMT 2004

Richard Henderson wrote:

> Now, from an optimization standpoint, sure he can go ahead and
> use a pointer type and everything works.  But from a debugging
> standpoint, we've just messed things up.  And I'm not sure how
> best to go about rectifying that.
aah, I see.  Perhaps we need a lang_hook 'ref_type_can_be_null', or
a flag on the type itself TYPE_REFERENCE_MAY_BE_NULL.


Nathan Sidwell    ::   http://www.codesourcery.com   ::     CodeSourcery LLC
nathan@codesourcery.com    ::     http://www.planetfall.pwp.blueyonder.co.uk

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