[Bug fortran/29537] ICE in gfc_match_common for blank common in BLOCK DATA unit

["aldot at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>]

------- Comment #8 from aldot at gcc dot gnu dot org  2006-10-22 21:08 -------
Created an attachment (id=12476)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=12476&action=view)
untested proposed fix

I hope to test this patch soon.

Note that it adds a warning about blank common in block data but -- unlike the
patch in the previous comment -- does accept the common instead of abandoning
it via goto cleanup. Please advise if not cleaning this up is acceptable or if
blank commons should be ignored there.

fortran/ChangeLog:
2006-10-22  Bernhard Fischer  <aldot@gcc.gnu.org>

        PR fortran/29537
        * trans-common.c (gfc_trans_common): For unnamed block data the
        proc_name is null, so use the locus of the common.
        (gfc_sym_mangled_common_id): Fix whitespace.
        * match.c (gfc_match_common): Emit warning about blank common in
        block data.

testsuite/ChangeLog:
2006-10-22  Bernhard Fischer  <aldot@gcc.gnu.org>

        PR fortran/29537
        * blockdata_1.f90: Add warning about blank common in block data.
        * blockdata_2.f90: New testcase.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29537