[Bug fortran/30084] [4.2 and 4.1 only] segmentation fault when compiling certain code

[pault at gcc dot gnu dot org]

------- Comment #8 from pault at gcc dot gnu dot org  2007-01-03 21:27 -------
Subject: Bug 30084

Author: pault
Date: Wed Jan  3 21:27:17 2007
New Revision: 120399

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=120399
Log:
2007-01-03  Paul Thomas  <pault@gcc.gnu.org>

        Backport from trunk

        PR fortran/25818
        * trans-array.c (gfc_trans_g77_array): If the variable is
        optional or not always present, make the statement conditional
        on presence of the argument.
        * gfortran.h : Add symbol_attribute not_always_present.
        * resolve.c (check_argument_lists): New function to check if
        arguments are not present in all entries.

        PR fortran/30084
        * module.c (mio_component_ref): Move treatment of unique name
        variables, during output, to fix_mio_expr.
        (fix_mio_expr): New function that fixes defective expressions
        before they are written to the module file.
        (mio_expr): Call the new function.
        (resolve_entries): Call check_argument_lists.

2007-01-03  Paul Thomas  <pault@gcc.gnu.org>

        PR fortran/25818
        * gfortran.dg/entry_array_specs_2.f: New test.

        PR fortran/30084
        * gfortran.dg/nested_modules_6.f90: New test.

Added:
    branches/gcc-4_2-branch/gcc/testsuite/gfortran.dg/entry_array_specs_2.f
    branches/gcc-4_2-branch/gcc/testsuite/gfortran.dg/nested_modules_6.f90
Modified:
    branches/gcc-4_2-branch/gcc/fortran/ChangeLog
    branches/gcc-4_2-branch/gcc/fortran/gfortran.h
    branches/gcc-4_2-branch/gcc/fortran/module.c
    branches/gcc-4_2-branch/gcc/fortran/resolve.c
    branches/gcc-4_2-branch/gcc/fortran/trans-array.c
    branches/gcc-4_2-branch/gcc/testsuite/ChangeLog


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30084