[Bug fortran/18082] Infinite loop with automatic length character objects

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

------- Comment #11 from cvs-commit at gcc dot gnu dot org  2005-10-14 04:53 -------
Subject: Bug 18082

CVSROOT:        /cvs/gcc
Module name:    gcc
Branch:         gcc-4_0-branch
Changes by:     pault@gcc.gnu.org       2005-10-14 04:53:30

Modified files:
        gcc/fortran    : symbol.c trans-types.c decl.c ChangeLog 
        gcc/testsuite  : ChangeLog 
Added files:
        gcc/testsuite/gfortran.dg: automatic_char_len_1.f90 
                                   save_common.f90 save_result.f90 
                                   derived_pointer_recursion.f90 

Log message:
        2005-10-14  Paul Thomas  <pault@gcc.gnu.org>

        PR fortran/20847
        PR fortran/20856
        * symbol.c (check_conflict): Prevent common variables and
        function results from having the SAVE attribute,as required
        by the standard.

        PR fortran/24092
        * trans-types.c (gfc_get_derived_type): Insert code to obtain backend
        declaration for derived types, building if necessary.  Return the
        derived type if the fields have been built by this process.  Otherwise,
        continue as before but using the already obtained backend_decls for the
        derived type components.  Change the gcc_assert to act on the field.

        PR fortran/18082
        * decl.c (variable_decl): Make a new copy of the character
        length for each variable, when the expression is not a
        constant.

        2005-10-14  Paul Thomas  <pault@gcc.gnu.org>

        PR fortran/18082
        * gfortran.dg/automatic_char_len_1.f90: New test.

        PR fortran/20847
        * gfortran.dg/save_common.f90: New test.

        PR fortran/20856
        * gfortran.dg/save_result.f90: New test.

        PR fortran/24092
        * gfortran.dg/derived_pointer_recursion.f90: New test.

Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/fortran/symbol.c.diff?cvsroot=gcc&only_with_tag=gcc-4_0-branch&r1=1.26.2.5&r2=1.26.2.6
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/fortran/trans-types.c.diff?cvsroot=gcc&only_with_tag=gcc-4_0-branch&r1=1.37.10.7&r2=1.37.10.8
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/fortran/decl.c.diff?cvsroot=gcc&only_with_tag=gcc-4_0-branch&r1=1.31.2.4&r2=1.31.2.5
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/fortran/ChangeLog.diff?cvsroot=gcc&only_with_tag=gcc-4_0-branch&r1=1.335.2.128&r2=1.335.2.129
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/gfortran.dg/automatic_char_len_1.f90.diff?cvsroot=gcc&only_with_tag=gcc-4_0-branch&r1=NONE&r2=1.1.4.1
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/gfortran.dg/save_common.f90.diff?cvsroot=gcc&only_with_tag=gcc-4_0-branch&r1=NONE&r2=1.2.4.1
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/gfortran.dg/save_result.f90.diff?cvsroot=gcc&only_with_tag=gcc-4_0-branch&r1=NONE&r2=1.2.4.1
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/gfortran.dg/derived_pointer_recursion.f90.diff?cvsroot=gcc&only_with_tag=gcc-4_0-branch&r1=NONE&r2=1.1.4.1
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/ChangeLog.diff?cvsroot=gcc&only_with_tag=gcc-4_0-branch&r1=1.5084.2.453&r2=1.5084.2.454


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18082