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[Bug fortran/66578] [F2008] Invalid free on allocate(...,source=a(:)) in block
- From: "vehre at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Thu, 18 Jun 2015 18:03:20 +0000
- Subject: [Bug fortran/66578] [F2008] Invalid free on allocate(...,source=a(:)) in block
- Auto-submitted: auto-generated
- References: <bug-66578-4 at http dot gcc dot gnu dot org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66578
--- Comment #6 from vehre at gcc dot gnu.org ---
c= a(:) works because there is no additional array descriptor inbetween.
The (new) allocate gets its own temporary array descriptor for the source=
expression, which in turn has incorrect bounds in it. The arrayspec is an
AS_DEFERRED which is then used to generate the temporary array descriptor and
defaults to a lower bound of zero, where all the miserable things begin with.