2011-01-28 Paul Thomas <pault@gcc.gnu.org>
commit617125a6c985a0bf2f0f634844ed0bc9d7bf52e2
authorpault <pault@138bc75d-0d04-0410-961f-82ee72b054a4>
Fri, 28 Jan 2011 13:53:19 +0000 (28 13:53 +0000)
committerpault <pault@138bc75d-0d04-0410-961f-82ee72b054a4>
Fri, 28 Jan 2011 13:53:19 +0000 (28 13:53 +0000)
tree8feacbc10294f914c2ff1de86d10b842892c1692
parenta54f3ef35dde9f1879f0f1f1a4b919a61f2feca2
2011-01-28  Paul Thomas  <pault@gcc.gnu.org>
    Tobias Burnus  <burnus@gcc.gnu.org>

PR fortran/45170
PR fortran/35810
PR fortran/47350
* interface.c (compare_actual_formal): An allocatable or pointer
deferred length actual is only allowed if the formal argument
is also deferred length. Clean up whitespace.
* trans-expr.c (gfc_conv_procedure_call): Pass string length for
deferred character length formal arguments by reference. Do the
same for function results.
(gfc_trans_pointer_assignment): Do not do runtime check of lhs
and rhs character lengths, if deferred length lhs.  In this case
set the lhs character length to that of the rhs.
(gfc_conv_string_parameter): Remove assert that string length is
an integer type.
(is_scalar_reallocatable_lhs): New function.
(alloc_scalar_allocatable_for_assignment): New function.
(gfc_trans_assignment_1): Call above new function. If the rhs is
a deferred character length itself, makes ure that the function
is called before reallocation, so that the length is available.
(gfc_trans_asssignment): Remove error about assignment to
deferred length character variables.
* gfortran.texi : Update entry about (re)allocation on
assignment.
* trans-stmt.c (gfc_trans_allocate): Add code to handle deferred
length character variables.
* module.c (mio_typespec): Transfer deferred characteristic.
* trans-types.c (gfc_get_function_type): New code to generate
hidden typelist, so that those character lengths that are
passed by reference get the right type.
* resolve.c (resolve_contained_fntype): Supress error for
deferred character length functions.
(resolve_function, resolve_fl_procedure) The same.
(check_symbols): Remove the error that support for
entity with deferred type parameter is not yet implemented.
(resolve_fl_derived): The same.
match.c (alloc_opt_list): Allow MOLD for deferred length object.
* trans-decl.c (gfc_get_symbol_decl): For deferred character
length dummies, generate a local variable for string length.
(create_function_arglist): Hidden length can be a pointer.
(gfc_trans_deferred_vars): For deferred character length
results and dummies, assign the string length to the local
variable from the hidden argument on entry and the other way
round on exit, as appropriate.

2011-01-28  Paul Thomas  <pault@gcc.gnu.org>
    Tobias Burnus  <burnus@gcc.gnu.org>

PR fortran/45170
PR fortran/35810
PR fortran/47350
* gfortran.dg/realloc_on_assign_3.f03: New test.
* gfortran.dg/realloc_on_assign_4.f03: New test.
* gfortran.dg/realloc_on_assign_5.f90: New test.
* gfortran.dg/allocatable_function_5.f90: New test.
* gfortran.dg/allocate_deferred_char_scalar_1.f90: New test.
* gfortran.dg/deferred_type_param_2.f90: Remove two "not yet
implemented" dg-errors.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@169356 138bc75d-0d04-0410-961f-82ee72b054a4
15 files changed:
gcc/fortran/ChangeLog
gcc/fortran/gfortran.texi
gcc/fortran/interface.c
gcc/fortran/match.c
gcc/fortran/module.c
gcc/fortran/resolve.c
gcc/fortran/trans-decl.c
gcc/fortran/trans-expr.c
gcc/fortran/trans-stmt.c
gcc/fortran/trans-types.c
gcc/testsuite/ChangeLog
gcc/testsuite/gfortran.dg/allocate_deferred_char_scalar_1.f03 [new file with mode: 0644]
gcc/testsuite/gfortran.dg/deferred_type_param_2.f90
gcc/testsuite/gfortran.dg/realloc_on_assign_3.f03 [new file with mode: 0644]
gcc/testsuite/gfortran.dg/realloc_on_assign_4.f03 [new file with mode: 0644]