[Bug fortran/31879] ICE with function having array of character variables argument

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

------- Comment #6 from pault at gcc dot gnu dot org  2007-08-30 22:11 -------
Subject: Bug 31879

Author: pault
Date: Thu Aug 30 22:10:55 2007
New Revision: 127939

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=127939
Log:
2007-08-31  Paul Thomas  <pault@gcc.gnu.org>

        PR fortran/31879
        PR fortran/31197
        PR fortran/31258
        PR fortran/32703
        * gfortran.h : Add prototype for gfc_resolve_substring_charlen.
        * resolve.c (gfc_resolve_substring_charlen): New function.
        (resolve_ref): Call gfc_resolve_substring_charlen.
        (gfc_resolve_character_operator): New function.
        (gfc_resolve_expr): Call the new functions in cases where the
        character length is missing.
        * iresolve.c (cshift, eoshift, merge, pack, reshape, spread,
        transpose, unpack): Call gfc_resolve_substring_charlen for
        source expressions that are character and have a reference.
        * trans.h (gfc_trans_init_string_length) Change name to
        gfc_conv_string_length; modify references in trans-expr.c,
        trans-array.c and trans-decl.c.
        * trans-expr.c (gfc_trans_string_length): Handle case of no
        backend_decl.
        (gfc_conv_aliased_arg): Remove code for treating substrings
        and replace with call to gfc_trans_string_length.
        * trans-array.c (gfc_conv_expr_descriptor): Remove code for
        treating strings and call gfc_trans_string_length instead.

2007-08-31  Paul Thomas  <pault@gcc.gnu.org>

        PR fortran/31879
        * gfortran.dg/char_length_7.f90: New test.
        * gfortran.dg/char_length_9.f90: New test.
        * gfortran.dg/char_assign_1.f90: Add extra warning.

        PR fortran/31197
        PR fortran/31258
        * gfortran.dg/char_length_8.f90: New test.

Added:
    trunk/gcc/testsuite/gfortran.dg/char_length_7.f90
    trunk/gcc/testsuite/gfortran.dg/char_length_8.f90
    trunk/gcc/testsuite/gfortran.dg/char_length_9.f90
Modified:
    trunk/gcc/fortran/ChangeLog
    trunk/gcc/fortran/gfortran.h
    trunk/gcc/fortran/iresolve.c
    trunk/gcc/fortran/resolve.c
    trunk/gcc/fortran/trans-array.c
    trunk/gcc/fortran/trans-decl.c
    trunk/gcc/fortran/trans-expr.c
    trunk/gcc/fortran/trans.h
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/testsuite/gfortran.dg/char_assign_1.f90


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31879