[Bug fortran/51578] [4.3/4.4/4.5/4.6/4.7 Regression] Import of same symbol via different modules and renaming

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

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51578

--- Comment #4 from Tobias Burnus <burnus at gcc dot gnu.org> 2012-01-09 13:11:11 UTC ---
Author: burnus
Date: Mon Jan  9 13:11:05 2012
New Revision: 183010

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=183010
Log:
2012-01-09  Tobias Burnus  <burnus@net-b.de>

        PR fortran/51578
        * gfortran.h (gfc_use_list):
        * match.h (gfc_use_module): Rename to ...
        (gfc_use_modules): ... this.
        * module.c (use_locus, specified_nonint, specified_int): Remove
        global variable.
        (module_name): Change type to const char*, used with gfc_get_string.
        (module_list): New global variable.
        (free_rename): Free argument not global var.
        (gfc_match_use): Save match to module_list.
        (load_generic_interfaces, read_module): Don't free symtree.
        (write_dt_extensions, gfc_dump_module): Fix module-name I/O due to the
        type change of module_name.
        (write_symbol0, write_generic): Optimize due to the type change.
        (import_iso_c_binding_module, use_iso_fortran_env_module): Use
        locus of rename->where.
        (gfc_use_module): Take module_list as argument.
        (gfc_use_modules): New function.
        (gfc_module_init_2, gfc_module_done_2): Init module_list, rename_list.
        * parse.c (last_was_use_stmt): New global variable.
        (use_modules): New function.
        (decode_specification_statement, decode_statement): Move USE match up
        and call use_modules.
        (next_free, next_fixed): Call use_modules.
        (accept_statement): Don't call gfc_module_use.

2012-01-09  Tobias Burnus  <burnus@net-b.de>

        PR fortran/51578
        * gfortran.dg/use_17.f90: New.


Added:
    trunk/gcc/testsuite/gfortran.dg/use_17.f90
Modified:
    trunk/gcc/fortran/ChangeLog
    trunk/gcc/fortran/gfortran.h
    trunk/gcc/fortran/match.h
    trunk/gcc/fortran/module.c
    trunk/gcc/fortran/parse.c
    trunk/gcc/testsuite/ChangeLog