r208386 - in /trunk/gcc: fortran/ChangeLog fort...

[janus@gcc.gnu.org]

Author: janus
Date: Thu Mar  6 21:45:31 2014
New Revision: 208386

URL: http://gcc.gnu.org/viewcvs?rev=208386&root=gcc&view=rev
Log:
2014-03-06  Paul Thomas  <pault@gcc.gnu.org>
	    Janus Weil  <janus@gcc.gnu.org>

	PR fortran/51976
	* gfortran.h (symbol_attribute): Add deferred_parameter attribute.
	* primary.c (build_actual_constructor): It is not an error if
	a missing component has the deferred_parameter attribute;
	equally, if one is given a value, it is an error.
	* resolve.c (resolve_fl_derived0): Remove error for deferred
	character length components.  Add the hidden string length
	field to the structure. Give it the deferred_parameter
	attribute.
	* trans-array.c (duplicate_allocatable): Add a strlen field
	which is used as the element size if it is non-null.
	(gfc_duplicate_allocatable, gfc_copy_allocatable_data): Pass a
	NULL to the new argument in duplicate_allocatable.
	(structure_alloc_comps): Set the hidden string length as
	appropriate. Use it in calls to duplicate_allocatable.
	(gfc_alloc_allocatable_for_assignment): When a deferred length
	backend declaration is variable, use that; otherwise use the
	string length from the expression evaluation.
	* trans-expr.c (gfc_conv_component_ref): If this is a deferred
	character length component, the string length should have the
	value of the hidden string length field.
	(gfc_trans_subcomponent_assign): Set the hidden string length
	field for deferred character length components.  Allocate the
	necessary memory for the string.
	(alloc_scalar_allocatable_for_assignment): Same change as in
	gfc_alloc_allocatable_for_assignment above.
	* trans-stmt.c (gfc_trans_allocate): Likewise.
	* trans-intrinsic (size_of_string_in_bytes): Make non-static.
	* trans-types.c (gfc_get_derived_type): Set the tree type for
	a deferred character length component.
	* trans.c (gfc_deferred_strlen): New function.
	* trans.h (size_of_string_in_bytes,gfc_deferred_strlen): New prototypes.


2014-03-06  Paul Thomas  <pault@gcc.gnu.org>
	    Janus Weil  <janus@gcc.gnu.org>

	PR fortran/51976
	* gfortran.dg/deferred_type_component_1.f90 : New test.
	* gfortran.dg/deferred_type_component_2.f90 : New test.

Added:
    trunk/gcc/testsuite/gfortran.dg/deferred_type_component_1.f90
    trunk/gcc/testsuite/gfortran.dg/deferred_type_component_2.f90
Modified:
    trunk/gcc/fortran/ChangeLog
    trunk/gcc/fortran/gfortran.h
    trunk/gcc/fortran/primary.c
    trunk/gcc/fortran/resolve.c
    trunk/gcc/fortran/trans-array.c
    trunk/gcc/fortran/trans-expr.c
    trunk/gcc/fortran/trans-intrinsic.c
    trunk/gcc/fortran/trans-stmt.c
    trunk/gcc/fortran/trans-types.c
    trunk/gcc/fortran/trans.c
    trunk/gcc/fortran/trans.h
    trunk/gcc/testsuite/ChangeLog