[Bug fortran/18918] Eventually support Fortran 2008's coarrays [co-arrays]

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

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18918

--- Comment #58 from Tobias Burnus <burnus at gcc dot gnu.org> 2011-06-20 21:12:42 UTC ---
Author: burnus
Date: Mon Jun 20 21:12:39 2011
New Revision: 175228

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=175228
Log:
2011-06-20  Tobias Burnus  <burnus@net-b.de>

        PR fortran/18918
        * gfortran.h (gfc_check_vardef_context): Update prototype.
        (iso_fortran_env_symbol): Handle derived types.
        (symbol_attribute): Add lock_comp.
        * expr.c (gfc_check_vardef_context): Add LOCK_TYPE check.
        * interface.c (compare_parameter, gfc_procedure_use): Handle
        LOCK_TYPE.
        (compare_actual_formal): Update
        gfc_check_vardef_context call.
        * check.c (gfc_check_atomic_def, gfc_check_atomic_ref): Ditto.
        * intrinsic.c (check_arglist): Ditto.
        * io.c (resolve_tag, gfc_resolve_dt, gfc_resolve_inquire):
        * Ditto.
        * iso-fortran-env.def (ISOFORTRAN_LOCK_TYPE): Add.
        * intrinsic.texi (ISO_FORTRAN_ENV): Document LOCK_TYPE.
        * module.c (mio_symbol_attribute): Handle lock_comp.
        (create_derived_type): New function.
        (use_iso_fortran_env_module): Call it to handle LOCK_TYPE.
        * parse.c (parse_derived): Add constraint check for LOCK_TYPE.
        * resolve.c (resolve_symbol, resolve_lock_unlock): Add
        * constraint
        checks for LOCK_TYPE.
        (gfc_resolve_iterator, resolve_deallocate_expr,
        resolve_allocate_expr, resolve_code, resolve_transfer): Update
        gfc_check_vardef_context call.
        * trans-stmt.h (gfc_trans_lock_unlock): New prototype.
        * trans-stmt.c (gfc_trans_lock_unlock): New function.
        * trans.c (trans_code): Handle LOCK and UNLOCK.

2011-06-20  Tobias Burnus  <burnus@net-b.de>

        PR fortran/18918
        * gfortran.dg/coarray_lock_1.f90: Update dg-error.
        * gfortran.dg/coarray_lock_3.f90: New.
        * gfortran.dg/coarray/lock_1.f90: New.


Added:
    trunk/gcc/testsuite/gfortran.dg/coarray/lock_1.f90
    trunk/gcc/testsuite/gfortran.dg/coarray_lock_3.f90
Modified:
    trunk/gcc/fortran/ChangeLog
    trunk/gcc/fortran/check.c
    trunk/gcc/fortran/expr.c
    trunk/gcc/fortran/gfortran.h
    trunk/gcc/fortran/interface.c
    trunk/gcc/fortran/intrinsic.c
    trunk/gcc/fortran/intrinsic.texi
    trunk/gcc/fortran/io.c
    trunk/gcc/fortran/iso-fortran-env.def
    trunk/gcc/fortran/module.c
    trunk/gcc/fortran/parse.c
    trunk/gcc/fortran/resolve.c
    trunk/gcc/fortran/trans-stmt.c
    trunk/gcc/fortran/trans-stmt.h
    trunk/gcc/fortran/trans.c
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/testsuite/gfortran.dg/coarray_lock_1.f90