* check.c, expr.c, resolve.c, trans-common.c,

[pf3gnuchains/gcc-fork.git] / gcc / fortran / ChangeLog

2006-05-28  Kazu Hirata  <kazu@codesourcery.com>

        * check.c, expr.c, resolve.c, trans-common.c,
        trans-intrinsic.c, trans-stmt.c, trans-types.c: Fix comment typos.

2006-05-27  Francois-Xavier Coudert  <coudert@clipper.ens.fr>

        PR fortran/19777
        * trans-array.c (gfc_conv_array_ref): Don't perform out-of-bounds
        checking for assumed-size arrrays.

2006-05-27  Paul Thomas  <pault@gcc.gnu.org>

        * trans-intrinsic.c (gfc_conv_associated): If pointer in first
        arguments has zero array length of zero string length, return
        false.

2006-05-26  Francois-Xavier Coudert  <coudert@clipper.ens.fr>

        PR fortran/27524
        * trans-array.c (gfc_trans_dummy_array_bias): Don't use stride as
        a temporary variable when -fbounds-check is enabled, since its
        value will be needed later.

2006-05-26  Thomas Koenig  <Thomas.Koenig@online.de>

        PR fortran/23151
        * io.c (match_io):  print (1,*) is an error.

2006-05-26  Paul Thomas  <pault@gcc.gnu.org>

        PR fortran/27709
        * resolve.c (find_array_spec): Add gfc_symbol, derived, and
        use to track repeated component references.

        PR fortran/27155
        PR fortran/27449
        * trans-intrinsic.c (gfc_conv_intrinsic_array_transfer): Use
        se->string_length throughout and use memcpy to populate the
        expression returned to the scalarizer.
        (gfc_size_in_bytes): New function.

2006-05-21  Paul Thomas  <pault@gcc.gnu.org>

        PR fortran/27613
        * primary.c (gfc_match_rvalue): Test if symbol represents a
        direct recursive function reference.  Error if array valued,
        go to function0 otherwise.

2006-05-21  Paul Thomas  <pault@gcc.gnu.org>

        PR fortran/25746
        * interface.c (gfc_extend_assign): Use new EXEC_ASSIGN_CALL.
        * gfortran.h : Put EXEC_ASSIGN_CALL in enum.
        * trans-stmt.c (gfc_conv_elemental_dependencies): New function.
        (gfc_trans_call): Call it.  Add new boolian argument to flag
        need for dependency checking. Assert intent OUT and IN for arg1
        and arg2.
        (gfc_trans_forall_1): Use new code EXEC_ASSIGN_CALL.
        trans-stmt.h : Modify prototype of gfc_trans_call.
        trans.c (gfc_trans_code): Add call for EXEC_ASSIGN_CALL.
        st.c (gfc_free_statement): Free actual for EXEC_ASSIGN_CALL.
        * dependency.c (gfc_check_fncall_dependency): Don't check other
        against itself.

        PR fortran/25090
        * resolve.c : Remove resolving_index_expr.
        (entry_parameter): Remove.
        (gfc_resolve_expr, resolve_charlen, resolve_fl_variable): Lift
        calls to entry_parameter and references to resolving_index_expr.

        PR fortran/27584
        * check.c (gfc_check_associated): Replace NULL assert with an
        error message, since it is possible to generate bad code that
        has us fall through to here..

        PR fortran/19015
        * iresolve.c (maxloc, minloc): If DIM is not present, pass the
        rank of ARRAY as the shape of the result.  Otherwise, pass the
        shape of ARRAY, less the dimension DIM.
        (maxval, minval): The same, when DIM is present, otherwise no
        change.

2006-05-19  H.J. Lu  <hongjiu.lu@intel.com>

        PR fortran/27662
        * trans-array.c (gfc_conv_expr_descriptor): Don't zero the
        first stride to indicate a temporary.
        * trans-expr.c (gfc_conv_function_call): Likewise.

2006-05-18  Francois-Xavier Coudert  <coudert@clipper.ens.fr>
            Feng Wang  <fengwang@nudt.edu.cn>

        PR fortran/27552
        * dump-parse-tree.c (gfc_show_expr): Deal with Hollerith constants.
        * data.c (create_character_intializer): Set from_H flag if character is
        initialized by Hollerith constant.

2006-05-17  Francois-Xavier Coudert  <coudert@clipper.ens.fr>

        PR fortran/26551
        * resolve.c (resolve_call, resolve_function): Issue an error
        if a function or subroutine call is recursive but the function or
        subroutine wasn't declared as such.

2006-05-07  Francois-Xavier Coudert  <coudert@clipper.ens.fr>

        PR fortran/26551
        * gfortran.dg/recursive_check_1.f: New test.


2006-05-17  Francois-Xavier Coudert  <coudert@clipper.ens.fr>

        PR fortran/27320
        * dump-parse-tree.c (gfc_show_code_node): Try harder to find the
        called procedure name.

2006-05-17  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/27415
        * trans-openmp.c (gfc_trans_omp_parallel_do,
        gfc_trans_omp_parallel_sections, gfc_trans_omp_parallel_workshare): Set
        OMP_PARALLEL_COMBINED flag.

2006-05-16  H.J. Lu  <hongjiu.lu@intel.com>

        PR driver/26885
        * Make-lang.in (GFORTRAN_D_OBJS): Replace gcc.o with
        $(GCC_OBJS).

2006-05-15  Paul Thomas  <pault@gcc.gnu.org>

        PR fortran/25090
        * resolve.c: Static resolving_index_expr initialized.
        (entry_parameter): New function to emit errors for variables
        that are not entry parameters.
        (gfc_resolve_expr): Call entry_parameter, when resolving
        variables, if the namespace has entries and resolving_index_expr
        is set.
        (resolve_charlen): Set resolving_index_expr before the call to
        resolve_index_expr and reset it afterwards.
        (resolve_fl_variable): The same before and after the call to
        is_non_constant_shape_array, which ultimately makes a call to
        gfc_resolve_expr.

        PR fortran/25082
        * resolve.c (resolve_code): Add error condition that the return
        expression must be scalar.

        PR fortran/27411
        * matchexp.c (gfc_get_parentheses): New function.
        (match_primary): Remove inline code and call above.
        * gfortran.h: Provide prototype for gfc_get_parentheses.
        * resolve.c (resolve_array_ref): Call the above, when start is a
        derived type variable array reference.

2006-05-15  Jakub Jelinek  <jakub@redhat.com>

        PR fortran/27446
        * trans-openmp.c (gfc_trans_omp_array_reduction): Ensure
        OMP_CLAUSE_REDUCTION_{INIT,MERGE} are set to BIND_EXPR.

2006-05-14  H.J. Lu  <hongjiu.lu@intel.com>

        * Make-lang.in (fortran/options.o): Depend on $(TARGET_H).

2006-05-11  Francois-Xavier Coudert  <coudert@clipper.ens.fr>

        PR fortran/27553
        * parse.c (next_free): Return instead of calling decode_statement
        upon error.

2005-05-10  Thomas Koenig  <Thomas.Koenig@online.de>

        PR fortran/27470
        * trans-array.c(gfc_array_allocate):  If ref->next exists
        that is if there is a statement like ALLOCATE(foo%bar(2)),
        F95 rules require that bar should be a pointer.

2006-05-10  Francois-Xavier Coudert  <coudert@clipper.ens.fr>

        PR fortran/20460
        * resolve.c (gfc_resolve_index): Make REAL array indices a
        GFC_STD_LEGACY feature.

2006-05-10  Francois-Xavier Coudert  <coudert@clipper.ens.fr>

        PR fortran/24549
        * parse.c (reject_statement): Clear gfc_new_block.

2006-05-09  Steven G. Kargl  <kargls@comcast.net>

        * invoke.texi: Missed file in previous commit.  Update
         description of -fall-intrinsics

2006-05-07  Steven Boscher  <steven@gcc.gnu.org>

        PR fortran/27378
        * parse.c (next_statement): Add check to avoid an ICE when
        gfc_current_locus.lb is not set.

2006-05-07  Tobias Schl\81üter  <tobias.schlueter@physik.uni-muenchen.de>

        PR fortran/27457
        * match.c (match_case_eos): Error out on garbage following
        CASE(...).

2006-05-07  Paul Thomas  <pault@gcc.gnu.org>

        PR fortran/24813
        * trans-array.c (get_array_ctor_strlen): Remove static attribute.
        * trans.h: Add prototype for get_array_ctor_strlen.
        * trans-intrinsic.c (gfc_conv_intrinsic_len): Switch on EXPR_ARRAY
        and call get_array_ctor_strlen.

2006-05-05  Steven G. Kargl  <kargls@comcast.net>

        * invoke.texi: Update description of -fall-intrinsics
        * options.c (gfc_post_options): Disable -Wnonstd-intrinsics if
        -fall-intrinsics is used.
        (gfc_handle_option): Permit -Wno-nonstd-intrinsics.

2006-05-04  Tobias Schl\81üter  <tobias.schlueter@physik.uni-muenchen.de>

        * simplify.c (ascii_table): Fix wrong entry.

2006-05-02  Steven G. Kargl  <kargls@comcast.net>

        PR fortran/26896
        * lang.opt: Fix -Wtab description

        PR fortran/20248  
        * lang.opt: New flag -fall-intrinsics.
        * invoke.texi:  Document option.
        * gfortran.h (options_t):  New member flag_all_intrinsics.
        * options.c (gfc_init_options, gfc_handle_option): Set new option.
        sort nearby misplaced options.
        * intrinsic.c (add_sym, make_generic, make_alias):  Use it.
 
2006-05-02 Paul Thomas <pault@gcc.gnu.org>

        PR fortran/27269
        * module.c: Add static flag in_load_equiv.
        (mio_expr_ref): Return if no symtree and in_load_equiv.
        (load_equiv): If any of the equivalence members have no symtree, free
        the equivalence and the associated expressions.

        PR fortran/27324
        * trans-common.c (gfc_trans_common): Invert the order of calls to
        finish equivalences and gfc_commit_symbols.

2006-04-29  Francois-Xavier Coudert  <coudert@clipper.ens.fr>

        PR fortran/25681
        * simplify.c (simplify_len): Character variables with constant
        length can be simplified.

2006-04-29  H.J. Lu  <hongjiu.lu@intel.com>

        PR fortran/27351
        * trans-array.c (gfc_conv_array_transpose): Move gcc_assert
        before gfc_conv_expr_descriptor.

2006-04-23  Paul Thomas  <pault@gcc.gnu.org>

        PR fortran/25099
        * resolve.c (resolve_call): Check conformity of elemental
        subroutine actual arguments.

2006-04-22  Jakub Jelinek  <jakub@redhat.com>

        PR fortran/26769
        * iresolve.c (gfc_resolve_reshape): Use reshape_r16 for real(16).
        (gfc_resolve_transpose): Use transpose_r16 for real(16).

2006-04-21 Paul Thomas <pault@gcc.gnu.org>

        PR fortran/27122
        * resolve.c (resolve_function): Remove general restriction on auto
        character length function interfaces.
        (gfc_resolve_uops): Check restrictions on defined operator
        procedures.
        (resolve_types): Call the check for defined operators.

        PR fortran/27113
        * trans-array.c (gfc_trans_array_constructor_subarray): Remove
        redundant gfc_todo_error.
        (get_array_ctor_var_strlen): Remove typo in enum.

2006-04-18  Bernhard Fischer  <aldot@gcc.gnu.org>

        * parse.c (next_free): Use consistent error string between
        free-form and fixed-form for illegal statement label of zero.
        (next_fixed): Use consistent warning string between free-form
        and fixed-form for statement labels for empty statements.

2006-04-18  Steve Ellcey  <sje@cup.hp.com>

        * trans-io.c (gfc_build_io_library_fndecls): Align pad.

2006-04-16  Thomas Koenig  <Thomas.Koenig@online.de>

        PR fortran/26017
        * trans-array.c(gfc_array_init_size):  Introduce or_expr
        which is true if the size along any dimension
        is negative.  Create a temporary variable with base
        name size.  If or_expr is true, set the temporary to 0,
        to the normal size otherwise.

2006-04-16  Paul Thomas  <pault@gcc.gnu.org>

        PR fortran/26822
        * intrinsic.c (add_functions): Mark LOGICAL as elemental.

        PR fortran/26787
        * expr.c (gfc_check_assign): Extend scope of error to include
        assignments to a procedure in the main program or, from a
        module or internal procedure that is not that represented by
        the lhs symbol. Use VARIABLE rather than l-value in message.

        PR fortran/27096
        * trans-array.c (gfc_trans_deferred_array): If the backend_decl
        is not a descriptor, dereference and then test and use the type.

        PR fortran/25597
        * trans-decl.c (gfc_trans_deferred_vars): Check if an array
        result, is also automatic character length.  If so, process
        the character length.

        PR fortran/18003
        PR fortran/25669
        PR fortran/26834
        * trans_intrinsic.c (gfc_walk_intrinsic_bound): Set
        data.info.dimen for bound intrinsics.
        * trans_array.c (gfc_conv_ss_startstride): Pick out LBOUND and
        UBOUND intrinsics and supply their shape information to the ss
        and the loop.

        PR fortran/27124
        * trans_expr.c (gfc_trans_function_call):  Add a new block, post,
        in to which all the argument post blocks are put.  Add this block
        to se->pre after a byref call or to se->post, otherwise.

2006-04-14  Roger Sayle  <roger@eyesopen.com>

        * trans-io.c (set_string): Use fold_build2 and build_int_cst instead
        of build2 and convert to construct "x < 0" rather than "x <= -1".

2006-04-13  Richard Henderson  <rth@redhat.com>

        * trans-openmp.c (gfc_trans_omp_sections): Adjust for changed
        number of operands to OMP_SECTIONS.

2006-04-08  Kazu Hirata  <kazu@codesourcery.com>

        * gfortran.texi: Fix typos.  Follow spelling conventions.
        * resolve.c, trans-expr.c, trans-stmt.c: Fix comment typos.
        Follow spelling conventions.

2006-04-05  Roger Sayle  <roger@eyesopen.com>

        * dependency.c (get_no_elements): Delete function.
        (get_deps): Delete function.
        (transform_sections): Delete function.
        (gfc_check_section_vs_section): Significant rewrite.

2006-04-04  H.J. Lu  <hongjiu.lu@intel.com>

        PR fortran/25619
        * trans-array.c (gfc_conv_expr_descriptor): Only dereference
        character pointer when copying temporary.

        PR fortran/23634
        * trans-array.c (gfc_conv_expr_descriptor): Properly copy
        temporary character with non constant size.

2006-04-03  Paul Thomas  <pault@gcc.gnu.org>

        PR fortran/26891
        * trans.h: Prototype for gfc_conv_missing_dummy.
        * trans-expr (gfc_conv_missing_dummy): New function
        (gfc_conv_function_call): Call it and tidy up some of the code.
        * trans-intrinsic (gfc_conv_intrinsic_function_args): The same.

        PR fortran/26976
        * array.c (gfc_array_dimen_size): If available, return shape[dimen].
        * resolve.c (resolve_function): If available, use the argument
        shape for the function expression.
        * iresolve.c (gfc_resolve_transfer): Set shape[0] = size.

2006-04-02  Erik Edelmann  <eedelman@gcc.gnu.org>

        * trans-array.c (gfc_trans_dealloc_allocated): Take a
        tree representation of the array to be deallocated as argument
        instead of its gfc_symbol.
        (gfc_trans_deferred_array): Update call to
        gfc_trans_dealloc_allocated.
        * trans-array.h (gfc_trans_dealloc_allocated): Update
        prototype.
        * trans-expr.c (gfc_conv_function_call): Update call to
        gfc_trans_dealloc_allocated, get indirect reference to dummy
        arguments.

2006-04-01  Roger Sayle  <roger@eyesopen.com>

        PR fortran/25270
        * trans-array.c (gfc_trans_allocate_array_storage): In array index
        calculations use gfc_index_zero_node and gfc_index_one_node instead
        of integer_zero_node and integer_one_node respectively.
        (gfc_conv_array_transpose): Likewise.
        (gfc_conv_ss_startstride): Likewise.
        (gfc_trans_dummy_array_bias): Likewise.

2006-04-01  Roger Sayle  <roger@eyesopen.com>

        * dependency.c (gfc_is_inside_range): Delete.
        (gfc_check_element_vs_section): Significant rewrite.

2006-04-01  Roger Sayle  <roger@eyesopen.com>

        * dependency.c (gfc_dep_compare_expr): Strip parentheses and unary
        plus operators when comparing expressions.  Handle comparisons of
        the form "X+C vs. X", "X vs. X+C", "X-C vs. X" and "X vs. X-C" where
        C is an integer constant.  Handle comparisons of the form "P+Q vs.
        R+S" and "P-Q vs. R-S".  Handle comparisons of integral extensions
        specially (increasing functions) so extend(A) > extend(B), when A>B.
        (gfc_check_element_vs_element): Move test later, so that we ignore
        the fact that "A < B" or "A > B" when A or B contains a forall index.

2006-03-31  Asher Langton  <langton2@llnl.gov>

        PR fortran/25358
        * expr.c (gfc_check_assign): Allow cray pointee to be assumes-size.
        
2006-03-30  Paul Thomas <paulthomas2@wanadoo.fr>
            Bud Davis  <bdavis9659@sbcglobal.net>

        PR 21130
        * module.c (load_needed): Traverse entire tree before returning.

2006-03-30  Roger Sayle  <roger@eyesopen.com>

        PR middle-end/22375
        * trans.c (gfc_trans_runtime_check): Promote the arguments of
        __builtin_expect to the correct types, and the result back to
        boolean_type_node.

2006-03-29  Carlos O'Donell  <carlos@codesourcery.com>

        * Make-lang.in: Rename docdir to gcc_docdir.

2006-03-28  Steven G. Kargl  <kargls@comcast.net>

        * intrinsic.texi: s/floor/float in previous commit.

2006-03-28 Paul Thomas <pault@gcc.gnu.org>

        PR fortran/26779
        * resolve.c (resolve_fl_procedure): Do not check the access of
        derived types for internal procedures.

2006-03-27  Jakub Jelinek  <jakub@redhat.com>

        * io.c (check_io_constraints): Don't look at
        dt->advance->value.charater.string, unless it is a CHARACTER
        constant.

        * f95-lang.c (gfc_get_alias_set): New function.
        (LANG_HOOKS_GET_ALIAS_SET): Define.

2006-03-25  Steven G. Kargl  <kargls@comcast.net>

        PR fortran/26816
        * intrinsic.c (add_functions): Allow FLOAT to accept all integer kinds.
        * intrinsic.texi: Document FLOAT.

2006-03-25  Thomas Koenig  <Thomas.Koenig@online.de>

        PR fortran/26769
        * iresolve.c (gfc_resolve_reshape):  Remove doubling of
        kind for complex. For real(kind=10), call reshape_r10.
        (gfc_resolve_transpose):  For real(kind=10), call
        transpose_r10.

2006-03-25  Roger Sayle  <roger@eyesopen.com>

        * dependency.c (gfc_check_dependency): Improve handling of pointers;
        Two variables of different types can't have a dependency, and two
        variables with the same symbol are equal, even if pointers.

2006-03-24  Roger Sayle  <roger@eyesopen.com>

        * gfortran.h (gfc_symbol): Add a new "forall_index" bit field.
        * match.c (match_forall_iterator): Set forall_index field on
        the iteration variable's symbol.
        * dependency.c (contains_forall_index_p): New function to
        traverse a gfc_expr to check whether it contains a variable
        with forall_index set in it's symbol.
        (gfc_check_element_vs_element): Return GFC_DEP_EQUAL for scalar
        constant expressions that don't variables used as FORALL indices.

2006-03-22  Volker Reichelt  <reichelt@igpm.rwth-aachen.de>

        PR driver/22600
        * error.c (gfc_fatal_error): Return ICE_EXIT_CODE instead of 4.

2006-03-22  Thomas Koenig  <Thomas.Koenig@online.de>

        PR fortran/19303
        * gfortran.h (gfc_option_t):  Add record_marker.
        * lang.opt:  Add -frecord-marker=4 and -frecord-marker=8.
        * trans-decl.c:  Add gfor_fndecl_set_record_marker.
        (gfc_build_builtin_function_decls): Set
        gfor_fndecl_set_record_marker.
        (gfc_generate_function_code):  If we are in the main program
        and -frecord-marker was provided, call set_record_marker.
        * options.c (gfc_handle_option):  Add handling for
        -frecord-marker=4 and -frecord-marker=8.
        * invoke.texi:  Document -frecord-marker.

2006-03-22  Paul Thomas  <pault@gcc.gnu.org>

        PR fortran/17298
        * trans-intrinsic.c (gfc_conv_intrinsic_array_transfer): New
        function to implement array valued TRANSFER intrinsic.
        (gfc_conv_intrinsic_function): Call the new function if TRANSFER
        and non-null se->ss.
        (gfc_walk_intrinsic_function): Treat TRANSFER as one of the
        special cases by calling gfc_walk_intrinsic_libfunc directly.

2006-03-21  Toon Moene  <toon@moene.indiv.nluug.nl>

        * options.c (gfc_init_options): Initialize
        flag_argument_noalias to 3.

2006-03-20  Thomas Koenig  <Thomas.Koenig@online.de>

        PR fortran/20935
        * iresolve.c (gfc_resolve_maxloc):   If mask is scalar,
        prefix the function name with an "s".  If the mask is scalar
        or if its kind is smaller than gfc_default_logical_kind,
        coerce it to default kind.
        (gfc_resolve_maxval):  Likewise.
        (gfc_resolve_minloc):  Likewise.
        (gfc_resolve_minval):  Likewise.
        (gfc_resolve_product):  Likewise.
        (gfc_resolve_sum):  Likewise.

2006-03-19  Paul Thomas  <pault@gcc.gnu.org>

        PR fortran/26741
        *expr.c (external_spec_function): Permit elemental functions.

        PR fortran/26716
        *interface.c (compare_actual_formal): Detect call for procedure
        usage and require rank checking, in this case, for assumed shape
        and deferred shape arrays.
        (gfc_procedure_use): Revert to pre-PR25070 call to
        compare_actual_formal that does not require rank checking..

2006-03-16  Roger Sayle  <roger@eyesopen.com>

        * gfortran.h (gfc_equiv_info): Add length field.
        * trans-common.c (copy_equiv_list_to_ns): Set the length field.
        * dependency.c (gfc_are_equivalenced_arrays): Use both the offset
        and length fields to determine whether the two equivalenced symbols
        overlap in memory.

2006-03-14  Jerry DeLisle  <jvdelisle@gcc.gnu.org>

        PR fortran/19101
        * gfortran.h: Add warn_ampersand.
        * invoke.texi: Add documentation for new option.
        * lang.opt: Add Wampersand.
        * options.c (gfc_init_options): Initialize warn_ampersand.
        (gfc_post_options): Set the warn if pedantic.
        (set_Wall): Set warn_ampersand.
        (gfc_handle_option: Add Wampersand for itself, -std=f95, and -std=f2003.
        * scanner.c (gfc_next_char_literal): Add test for missing '&' in
        continued character constant and give warning if missing.

2006-03-14  Steven G. Kargl  <kargls@comcast.net>

        PR 18537
        * gfortran.h: Wrap Copyright line.
        (gfc_option_t): add warn_tabs member.
        * lang.opt: Update Coyright year.  Add the Wtabs.
        * invoke.texi: Document -Wtabs.
        * scanner.c (gfc_gobble_whitespace): Use warn_tabs.  Add linenum to
        suppress multiple warnings.
        (load_line): Use warn_tabs.  Add linenum, current_line, seen_comment
        to suppress multiple warnings.
        * options.c (gfc_init_options): Initialize warn_tabs.
        (set_Wall): set warn_tabs for -Wall.
        (gfc_post_options): Adjust flag_tabs depending on -pedantic.
        (gfc_handle_option):  Process command-line option -W[no-]tabs

2006-03-13  Paul Thomas  <pault@gcc.gnu.org>

        PR fortran/25378
        * trans-intrinsic.c (gfc_conv_intrinsic_minmaxloc): Set the initial position to zero and
        modify the condition for updating it, to implement the F2003 requirement for all(mask)
        is false.

2006-03-13  Jakub Jelinek  <jakub@redhat.com>

        * trans-openmp.c (gfc_trans_omp_variable): Handle references
        to parent result.
        * trans-expr.c (gfc_conv_variable): Remove useless setting
        of parent_flag, formatting.

        * trans-decl.c (gfc_get_fake_result_decl): Re-add setting of
        GFC_DECL_RESULT flag.

2003-03-11  Roger Sayle  <roger@eyesopen.com>

        * dependency.c (gfc_dep_compare_expr) <EXPR_OP>: Allow unary and
        binary operators to compare equal if their operands are equal.
        <EXPR_FUNCTION>: Allow "constant" intrinsic conversion functions
        to compare equal, if their operands are equal.

2006-03-11  Erik Edelmann  <eedelman@gcc.gnu.org>

        * symbol.c (check_conflict): Allow allocatable function results,
        except for elemental functions.
        * trans-array.c (gfc_trans_allocate_temp_array): Rename to ...
        (gfc_trans_create_temp_array): ... this, and add new argument
        callee_alloc.
        (gfc_trans_array_constructor, gfc_conv_loop_setup): Update call
        to gfc_trans_allocate_temp_array.
        * trans-array.h (gfc_trans_allocate_temp_array): Update prototype.
        * trans-expr.c (gfc_conv_function_call): Use new arg of
        gfc_trans_create_temp_array avoid pre-allocation of temporary
        result variables of pointer AND allocatable functions.
        (gfc_trans_arrayfunc_assign): Return NULL for allocatable
        functions.
        * resolve.c (resolve_symbol): Copy value of 'allocatable' attribute
        from sym->result to sym.

2006-03-09  Erik Edelmann  <eedelman@gcc.gnu.org>

        * trans-expr.c (gfc_add_interface_mapping): Copy 'allocatable'
        attribute from sym to new_sym.  Call build_fold_indirect_ref()
        for allocatable arguments.

2006-03-09 Paul Thomas <pault@gcc.gnu.org>

        PR fortran/26257
        * trans-array.c (gfc_conv_expr_descriptor): Exclude calculation of
        the offset and data when se->data_not_needed is set.
        * trans.h: Include the data_not_need bit in gfc_se.
        * trans-intrinsic.c (gfc_conv_intrinsic_size): Set it for SIZE.

2006-03-06  Paul Thomas  <pault@gcc.gnu.org>
            Erik Edelmann  <eedelman@gcc.gnu.org>

        * trans-array.c (gfc_trans_dealloc_allocated): New function.
        (gfc_trans_deferred_array): Use it, instead of inline code.
        * trans-array.h: Prototype for gfc_trans_dealloc_allocated().
        * trans-expr.c (gfc_conv_function_call): Deallocate allocated
        ALLOCATABLE, INTENT(OUT) arguments upon procedure entry.

2006-03-06  Paul Thomas  <pault@gcc.gnu.org>

        PR fortran/26107
        * resolve.c (resolve_function): Add name after test for pureness.

        PR fortran/19546
        * trans-expr.c (gfc_conv_variable): Detect reference to parent result,
        store current_function_decl, replace with parent, whilst calls are
        made to gfc_get_fake_result_decl, and restore afterwards. Signal this
        to gfc_get_fake_result_decl with a new argument, parent_flag.
        * trans-stmt.c (gfc_trans_return): gfc_get_fake_result_decl 2nd arg
        is set to zero.
        * trans.h: Add parent_flag to gfc_get_fake_result_decl prototype.
        * trans-decl.c (gfc_get_fake_result_decl): On parent_flag, being set,
        add decl to parent function. Replace refs to current_fake_result_decl
        with refs to this_result_decl.
        (gfc_generate_function_code): Null parent_fake_result_decl before the
        translation of code for contained procedures. Set parent_flag to zero
        in call to gfc_get_fake_result_decl.
        * trans-intrinsic.c (gfc_conv_intrinsic_len): The same.

2006-03-05  Steven G. Kargl  <kargls@comcast.net>

        * simplify.c (gfc_simplify_verify):  Fix return when SET=''.

2006-03-05  Erik Edelmann  <eedelman@gcc.gnu.org>

        PR fortran/16136
        * symbol.c (conf_std): New macro.
        (check_conflict): Use it to allow ALLOCATABLE dummy
        arguments for F2003.
        * trans-expr.c (gfc_conv_function_call): Pass the
        address of the array descriptor when dummy argument is
        ALLOCATABLE.
        * interface.c (compare_allocatable): New function.
        (compare_actual_formal): Use it.
        * resolve.c (resolve_deallocate_expr,
        resolve_allocate_expr): Check that INTENT(IN) variables
        aren't (de)allocated.
        * gfortran.texi (Fortran 2003 status): List ALLOCATABLE
        dummy arguments as supported.

2006-03-03  Roger Sayle  <roger@eyesopen.com>

        * dependency.c (gfc_check_element_vs_element): Revert last change.

2006-03-03  Roger Sayle  <roger@eyesopen.com>

        * dependency.c (gfc_check_element_vs_element): Consider two
        unordered scalar subscripts as (potentially) equal.

2006-03-03  Roger Sayle  <roger@eyesopen.com>

        * dependency.c (gfc_check_dependency): Call gfc_dep_resolver to
        check whether two array references have a dependency.
        (gfc_check_element_vs_element): Assume lref and rref must be
        REF_ARRAYs.  If gfc_dep_compare_expr returns -2, assume these
        references could potentially overlap.
        (gfc_dep_resolver): Whitespace and comment tweaks.  Assume a
        dependency if the references have different depths.  Rewrite
        final term to clarrify we only have a dependency for overlaps.

2006-03-03  Thomas Koenig  <Thomas.Koenig@online.de>

        PR fortran/25031
        * trans-array.h:  Adjust gfc_array_allocate prototype.
        * trans-array.c (gfc_array_allocate):  Change type of
        gfc_array_allocatate to bool.  Function returns true if
        it operates on an array.  Change second argument to gfc_expr.
        Find last reference in chain.
        If the function operates on an allocatable array, emit call to
        allocate_array() or allocate64_array().
        * trans-stmt.c (gfc_trans_allocate):  Code to follow to last
        reference has been moved to gfc_array_allocate.
        * trans.h:  Add declaration for gfor_fndecl_allocate_array and
        gfor_fndecl_allocate64_array.
        (gfc_build_builtin_function_decls):  Add gfor_fndecl_allocate_array
        and gfor_fndecl_allocate64_array.

2006-03-01  Roger Sayle  <roger@eyesopen.com>

        * trans-stmt.c (generate_loop_for_temp_to_lhs): Add an additional
        INVERT argument to invert the sense of the WHEREMASK argument.
        Remove unneeded code to AND together a list of masks.
        (generate_loop_for_rhs_to_temp): Likewise.
        (gfc_trans_assign_need_temp): Likewise.
        (gfc_trans_forall_1): Likewise.
        (gfc_evaluate_where_mask): Likewise, add a new INVERT argument
        to specify the sense of the MASK argument.
        (gfc_trans_where_assign): Likewise.
        (gfc_trans_where_2): Likewise.  Restructure code that decides
        whether we need to allocate zero, one or two temporary masks.
        If this is a top-level WHERE (i.e. the incoming MASK is NULL),
        we only need to allocate at most one temporary mask, and can
        invert it's sense to provide the complementary pending execution
        mask.  Only calculate the size of the required temporary arrays
        if we need any.
        (gfc_trans_where): Update call to gfc_trans_where_2.

2006-03-01  Paul Thomas  <pault@gcc.gnu.org>

        * iresolve.c (gfc_resolve_dot_product):  Remove any difference in
        treatment of logical types.
        * trans-intrinsic.c (gfc_conv_intrinsic_dot_product):  New function. 

        PR fortran/26393
        * trans-decl.c (gfc_get_symbol_decl): Extend condition that symbols
        must be referenced to include unreferenced symbols in an interface
        body. 

        PR fortran/20938
        * trans-array.c (gfc_conv_resolve_dependencies): Add call to
        gfc_are_equivalenced_arrays.
        * symbol.c (gfc_free_equiv_infos, gfc_free_equiv_lists): New
        functions. (gfc_free_namespace): Call them.
        * trans-common.c (copy_equiv_list_to_ns): New function.
        (add_equivalences): Call it.
        * gfortran.h: Add equiv_lists to gfc_namespace and define
        gfc_equiv_list and gfc_equiv_info.
        * dependency.c (gfc_are_equivalenced_arrays): New function.
        (gfc_check_dependency): Call it.
        * dependency.h: Prototype for gfc_are_equivalenced_arrays.

2006-03-01  Roger Sayle  <roger@eyesopen.com>

        * dependency.c (gfc_is_same_range): Compare the stride, lower and
        upper bounds when testing array reference ranges for equality.
        (gfc_check_dependency): Fix indentation whitespace.
        (gfc_check_element_vs_element): Likewise.
        (gfc_dep_resolver): Likewise.

2006-02-28  Thomas Koenig  <Thomas.Koenig@online.de>

        * trans-intrinsic.c (gfc_conv_intrinsic_minmaxloc):
        If the mask expression exists and has rank 0, enclose the
        generated loop in an "if (mask)".  Put the default
        initialization into the else branch.

2006-02-25  Thomas Koenig  <Thomas.Koenig@online.de>

        PR fortran/23092
        * trans-intrinsic.c (gfc_conv_intrinsic_arith):  If the
        mask expression exists and has rank 0, enclose the generated
        loop in an "if (mask)".
        * (gfc_conv_intrinsic_minmaxloc):  Likewise.

2006-02-24  Paul Thomas  <pault@gcc.gnu.org>

        PR fortran/26409
        * resolve.c (resolve_contained_functions, resolve_types,
        gfc_resolve): Revert patch of 2006-02-19.

2006-02-24  Paul Thomas  <pault@gcc.gnu.org>

        PR fortran/24519
        * dependency.c (gfc_is_same_range): Correct typo.
        (gfc_check_section_vs_section): Call gfc_is_same_range.

        PR fortran/25395
        * trans-common.c (add_equivalences): Add a new flag that is set when
        an equivalence is seen that prevents more from being reset until the
        start of a new traversal of the list, thus ensuring completion of
        all the equivalences.

2006-02-23  Erik Edelmann  <eedelman@gcc.gnu.org>

        * module.c (read_module): Remove redundant code lines.

2006-02-20 Rafael \81Ávila de Esp\81índola <rafael.espindola@gmail.com>
        * Make-lang.in (FORTRAN): Remove
        (.PHONY): Remove F95 and f95. Add fortran

2006-02-20  Roger Sayle  <roger@eyesopen.com>

        * trans-stmt.c (gfc_trans_where_2): Avoid updating unused current
        execution mask for empty WHERE/ELSEWHERE clauses.  Don't allocate
        temporary mask arrays if they won't be used.

2006-02-20  Roger Sayle  <roger@eyesopen.com>

        * trans-stmt.c (gfc_trans_where_assign): Remove code to handle
        traversing a linked list of MASKs.  The MASK is now always a
        single element requiring no ANDing during the assignment.

2006-02-19  Thomas Koenig  <Thomas.Koenig@online.de>

        * gfortran.texi:  Document environment variables which
        influence runtime behavior.

2006-02-19  H.J. Lu  <hongjiu.lu@intel.com>

        * resolve.c (resolve_contained_functions): Call resolve_entries
        first.
        (resolve_types): Remove calls to resolve_entries and
        resolve_contained_functions.
        (gfc_resolve): Call resolve_contained_functions.

2006-02-19  Erik Edelmann  <eedelman@gcc.gnu.org>

        PR fortran/26201
        * intrinsic.c (gfc_convert_type_warn): Call
        gfc_intrinsic_symbol() on the newly created symbol.

2006-02-19  Paul Thomas  <pault@gcc.gnu.org>

        PR fortran/25054
        * resolve.c (is_non_constant_shape_array): New function.
        (resolve_fl_variable): Remove code for the new function and call it.
        (resolve_fl_namelist): New function.  Add test for namelist array
        with non-constant shape, using is_non_constant_shape_array.
        (resolve_symbol): Remove code for resolve_fl_namelist and call it.

        PR fortran/25089
        * match.c (match_namelist): Increment the refs field of an accepted
        namelist object symbol.
        * resolve.c (resolve_fl_namelist): Test namelist objects for a conflict
        with contained or module procedures.

2006-02-18  Roger Sayle  <roger@eyesopen.com>

        * trans-stmt.c (struct temporary_list): Delete.
        (gfc_trans_where_2): Major reorganization.  Remove no longer needed
        TEMP argument.  Allocate and deallocate the control mask and
        pending control mask locally.
        (gfc_trans_forall_1): Delete TEMP local variable, and update
        call to gfc_trans_where_2.  No need to deallocate arrays after.
        (gfc_evaluate_where_mask): Major reorganization.  Change return
        type to void.  Pass in parent execution mask, MASK, and two
        already allocated mask arrays CMASK and PMASK.  On return
        CMASK := MASK & COND, PMASK := MASK & !COND.  MASK, CMASK and
        CMASK may all be NULL, or refer to the same temporary arrays.
        (gfc_trans_where): Update call to gfc_trans_where_2.  We no
        longer need a TEMP variable or to deallocate temporary arrays
        allocated by gfc_trans_where_2.

2006-02-18   Danny Smith  <dannysmith@users.sourceforeg.net>

        * gfortran.h (gfc_add_attribute): Change uint to unsigned int.
        * symbol.c (gfc_add_attribute): Likewise for definition.
        * resolve.c (resolve_global_procedure): Likewise for variable 'type'.

2006-02-17  Richard Sandiford  <richard@codesourcery.com>

        * trans-common.c: Include rtl.h earlier.
        * trans-decl.c: Likewise.

2006-02-16  Jakub Jelinek  <jakub@redhat.com>

        PR fortran/26224
        * parse.c (parse_omp_do, parse_omp_structured_block): Call
        gfc_commit_symbols and gfc_warning_check.

        * openmp.c (resolve_omp_clauses): Add a dummy case label to workaround
        PR middle-end/26316.

2006-02-16  Paul Thomas  <pault@gcc.gnu.org>

        PR fortran/24557
        * trans-expr.c (gfc_add_interface_mapping): Use the actual argument
        for character(*) arrays, rather than casting to the type and kind
        parameters of the formal argument.

2006-02-15  Toon Moene  <toon@moene.indiv.nluug.nl>

        PR fortran/26054
        * options.c: Do not warn for Fortran 2003 features by default.

2006-02-15  Tobias Schl\81üter  <tobias.schlueter@physik.uni-muenchen.de>

        * check.c: Update copyright years.
        
        * check.c (gfc_check_minloc_maxloc, check_reduction): Don't call
        dim_range_check on not-present optional dim argument.

2006-02-15  Jakub Jelinek  <jakub@redhat.com>

        PR libgomp/25938
        PR libgomp/25984
        * Make-lang.in (install-finclude-dir): New goal.
        (fortran.install-common): Depend on install-finclude-dir.
        * lang-specs.h: If not -nostdinc, add -I finclude.

2006-02-14  Thomas Koenig  <Thomas.Koenig@online.de>

        PR fortran/25045
        * check.c (dim_check):  Perform all checks if dim is optional.
        (gfc_check_minloc_maxloc):  Use dim_check and dim_rank_check
        to check dim argument.
        (check_reduction):  Likewise.

2006-02-14  Tobias Schl\81üter  <tobias.schlueter@physik.uni-muenchen.de>

        PR fortran/26277
        * io.c (match_ltag): Mark label as referenced.

2006-02-14  Jakub Jelinek  <jakub@redhat.com>
            Richard Henderson  <rth@redhat.com>
            Diego Novillo  <dnovillo@redhat.com>

        * invoke.texi: Document -fopenmp.
        * gfortran.texi (Extensions): Document OpenMP.

        Backport from gomp-20050608-branch
        * trans-openmp.c: Call build_omp_clause instead of
        make_node when creating OMP_CLAUSE_* trees.
        (gfc_trans_omp_reduction_list): Remove argument 'code'.
        Adjust all callers.

        * trans.h (build4_v): Define.
        * trans-openmp.c: Call build4_v to create OMP_PARALLEL nodes.
        Call build3_v to create OMP_SECTIONS nodes.

        PR fortran/25162
        * openmp.c (gfc_match_omp_variable_list): Call gfc_set_sym_referenced
        on all symbols added to the variable list.

        * openmp.c (gfc_match_omp_clauses): Fix check for non-INTRINSIC
        procedure symbol in REDUCTION.

        * trans-openmp.c (gfc_trans_omp_array_reduction): Use gfc_add
        for MINUS_EXPR OMP_CLAUSE_REDUCTION_CODE.

        * trans-openmp.c (gfc_trans_omp_do): Add PBLOCK argument.  If PBLOCK
        is non-NULL, evaluate INIT/COND/INCR and chunk size expressions in
        that statement block.
        (gfc_trans_omp_parallel_do): Pass non-NULL PBLOCK to gfc_trans_omp_do
        for non-ordered non-static combined loops.
        (gfc_trans_omp_directive): Pass NULL PBLOCK to gfc_trans_omp_do.

        * openmp.c: Include target.h and toplev.h.
        (gfc_match_omp_threadprivate): Emit diagnostic if target does
        not support TLS.
        * Make-lang.in (fortran/openmp.o): Add dependencies on
        target.h and toplev.h.

        * trans-decl.c (gfc_get_fake_result_decl): Set GFC_DECL_RESULT.
        * trans-openmp.c (gfc_omp_privatize_by_reference): Make
        DECL_ARTIFICIAL vars predetermined shared except GFC_DECL_RESULT.
        (gfc_omp_disregard_value_expr): Handle GFC_DECL_RESULT.
        (gfc_trans_omp_variable): New function.
        (gfc_trans_omp_variable_list, gfc_trans_omp_reduction_list): Use it.
        * trans.h (GFC_DECL_RESULT): Define.

        * trans-openmp.c (gfc_omp_firstprivatize_type_sizes): New function.
        * f95-lang.c (LANG_HOOKS_OMP_FIRSTPRIVATIZE_TYPE_SIZES): Define.
        * trans.h (gfc_omp_firstprivatize_type_sizes): New prototype.

        * trans-openmp.c (gfc_omp_privatize_by_reference): Return
        true if a pointer has GFC_DECL_SAVED_DESCRIPTOR set.
        (gfc_trans_omp_array_reduction, gfc_trans_omp_reduction_list): New
        functions.
        (gfc_trans_omp_clauses): Add WHERE argument.  Call
        gfc_trans_omp_reduction_list rather than gfc_trans_omp_variable_list
        for reductions.
        (gfc_trans_omp_do, gfc_trans_omp_parallel, gfc_trans_omp_parallel_do,
        gfc_trans_omp_parallel_sections, gfc_trans_omp_parallel_workshare,
        gfc_trans_omp_sections, gfc_trans_omp_single): Adjust
        gfc_trans_omp_clauses callers.

        * openmp.c (omp_current_do_code): New var.
        (gfc_resolve_omp_do_blocks): New function.
        (gfc_resolve_omp_parallel_blocks): Call it.
        (gfc_resolve_do_iterator): Add CODE argument.  Don't propagate
        predetermination if argument is !$omp do or !$omp parallel do
        iteration variable.
        * resolve.c (resolve_code): Call gfc_resolve_omp_do_blocks
        for EXEC_OMP_DO.  Adjust gfc_resolve_do_iterator caller.
        * fortran.h (gfc_resolve_omp_do_blocks): New prototype.
        (gfc_resolve_do_iterator): Add CODE argument.

        * trans.h (gfc_omp_predetermined_sharing,
        gfc_omp_disregard_value_expr, gfc_omp_private_debug_clause): New
        prototypes.
        (GFC_DECL_COMMON_OR_EQUIV, GFC_DECL_CRAY_POINTEE): Define.
        * trans-openmp.c (gfc_omp_predetermined_sharing,
        gfc_omp_disregard_value_expr, gfc_omp_private_debug_clause): New
        functions.
        * trans-common.c (build_equiv_decl, build_common_decl,
        create_common): Set GFC_DECL_COMMON_OR_EQUIV flag on the decls.
        * trans-decl.c (gfc_finish_cray_pointee): Set GFC_DECL_CRAY_POINTEE
        on the decl.
        * f95-lang.c (LANG_HOOKS_OMP_PREDETERMINED_SHARING,
        LANG_HOOKS_OMP_DISREGARD_VALUE_EXPR,
        LANG_HOOKS_OMP_PRIVATE_DEBUG_CLAUSE): Define.

        * openmp.c (resolve_omp_clauses): Remove extraneous comma.

        * symbol.c (check_conflict): Add conflict between cray_pointee and
        threadprivate.
        * openmp.c (gfc_match_omp_threadprivate): Fail if
        gfc_add_threadprivate returned FAILURE.
        (resolve_omp_clauses): Diagnose Cray pointees in SHARED,
        {,FIRST,LAST}PRIVATE and REDUCTION clauses and Cray pointers in
        {FIRST,LAST}PRIVATE and REDUCTION clauses.

        * resolve.c (omp_workshare_flag): New variable.
        (resolve_function): Diagnose use of non-ELEMENTAL user defined
        function in WORKSHARE construct.
        (resolve_code): Cleanup forall_save use.  Make sure omp_workshare_flag
        is set to correct value in different contexts.

        * openmp.c (resolve_omp_clauses): Replace %s with '%s' when printing
        variable name.
        (resolve_omp_atomic): Likewise.

        PR fortran/24493
        * scanner.c (skip_free_comments): Set at_bol at the beginning of the
        loop, not before it.
        (skip_fixed_comments): Handle ! comments in the middle of line here
        as well.
        (gfc_skip_comments): Use skip_fixed_comments for FIXED_FORM even if
        not at BOL.
        (gfc_next_char_literal): Fix expected canonicalized *$omp string.

        * trans-openmp.c (gfc_trans_omp_do): Use make_node and explicit
        initialization to build OMP_FOR instead of build.

        * trans-decl.c (gfc_gimplify_function): Invoke
        diagnose_omp_structured_block_errors.

        * trans-openmp.c (gfc_trans_omp_master): Use OMP_MASTER.
        (gfc_trans_omp_ordered): Use OMP_ORDERED.

        * gfortran.h (gfc_resolve_do_iterator, gfc_resolve_blocks,
        gfc_resolve_omp_parallel_blocks): New prototypes.
        * resolve.c (resolve_blocks): Renamed to...
        (gfc_resolve_blocks): ... this.  Remove static.
        (gfc_resolve_forall): Adjust caller.
        (resolve_code): Only call gfc_resolve_blocks if code->block != 0
        and not for EXEC_OMP_PARALLEL* directives.  Call
        gfc_resolve_omp_parallel_blocks for EXEC_OMP_PARALLEL* directives.
        Call gfc_resolve_do_iterator if resolved successfully EXEC_DO
        iterator.
        * openmp.c: Include pointer-set.h.
        (omp_current_ctx): New variable.
        (gfc_resolve_omp_parallel_blocks, gfc_resolve_do_iterator): New
        functions.
        * Make-lang.in (fortran/openmp.o): Depend on pointer-set.h.

        * openmp.c (gfc_match_omp_clauses): For max/min/iand/ior/ieor,
        look up symbol if it exists, use its name instead and, if it is not
        INTRINSIC, issue diagnostics.

        * parse.c (parse_omp_do): Handle implied end do properly.
        (parse_executable): If parse_omp_do returned ST_IMPLIED_ENDDO,
        return it instead of continuing.

        * trans-openmp.c (gfc_trans_omp_critical): Update for changed
        operand numbering.
        (gfc_trans_omp_do, gfc_trans_omp_parallel, gfc_trans_omp_parallel_do,
        gfc_trans_omp_parallel_sections, gfc_trans_omp_parallel_workshare,
        gfc_trans_omp_sections, gfc_trans_omp_single): Likewise.

        * trans.h (gfc_omp_privatize_by_reference): New prototype.
        * f95-lang.c (LANG_HOOKS_OMP_PRIVATIZE_BY_REFERENCE): Redefine
        to gfc_omp_privatize_by_reference.
        * trans-openmp.c (gfc_omp_privatize_by_reference): New function.

        * trans-stmt.h (gfc_trans_omp_directive): Add comment.

        * openmp.c (gfc_match_omp_variable_list): Add ALLOW_COMMON argument.
        Disallow COMMON matching if it is set.
        (gfc_match_omp_clauses, gfc_match_omp_flush): Adjust all callers.
        (resolve_omp_clauses): Show locus in error messages.  Check that
        variable types in reduction clauses are appropriate for reduction
        operators.

        * resolve.c (resolve_symbol): Don't error if a threadprivate module
        variable isn't SAVEd.

        * trans-openmp.c (gfc_trans_omp_do): Put count into BLOCK, not BODY.
        Fix typo in condition.  Fix DOVAR initialization.

        * openmp.c (gfc_match_omp_clauses): Match min/iand/ior/ieor
        rather than .min. etc.

        * trans-openmpc.c (omp_not_yet): Remove.
        (gfc_trans_omp_parallel_do): Keep listprivate clause on parallel.
        Force creation of BIND_EXPR around the workshare construct.
        (gfc_trans_omp_parallel_sections): Likewise.
        (gfc_trans_omp_parallel_workshare): Likewise.

        * types.def (BT_I16, BT_FN_I16_VPTR_I16,
        BT_FN_BOOL_VPTR_I16_I16, BT_FN_I16_VPTR_I16_I16): Add.

        * trans-openmp.c (gfc_trans_omp_clauses): Create OMP_CLAUSE_DEFAULT.
        (gfc_trans_omp_code): New function.
        (gfc_trans_omp_do): Use it, remove omp_not_yet uses.
        (gfc_trans_omp_parallel, gfc_trans_omp_single): Likewise.
        (gfc_trans_omp_sections): Likewise.  Only treat empty last section
        specially if lastprivate clause is present.
        * f95-lang.c (gfc_init_builtin_functions): Create BUILT_IN_TRAP
        builtin.

        * trans-openmp.c (gfc_trans_omp_variable_list): Update for
        OMP_CLAUSE_DECL name change.
        (gfc_trans_omp_do): Likewise.

        * trans-openmp.c (gfc_trans_omp_clauses): Create OMP_CLAUSE_REDUCTION
        clauses.
        (gfc_trans_omp_atomic): Build OMP_ATOMIC instead of expanding
        sync builtins directly.
        (gfc_trans_omp_single): Build OMP_SINGLE statement.

        * trans-openmp.c (gfc_trans_add_clause): New.
        (gfc_trans_omp_variable_list): Take a tree code and build the clause
        node here.  Link it to the head of a list.
        (gfc_trans_omp_clauses): Update to match.
        (gfc_trans_omp_do): Use gfc_trans_add_clause.

        * trans-openmp.c (gfc_trans_omp_clauses): Change second argument to
        gfc_omp_clauses *.  Use gfc_evaluate_now instead of creating
        temporaries by hand.
        (gfc_trans_omp_atomic, gfc_trans_omp_critical): Use buildN_v macros.
        (gfc_trans_omp_do): New function.
        (gfc_trans_omp_master): Dont' check for gfc_trans_code returning NULL.
        (gfc_trans_omp_parallel): Adjust gfc_trans_omp_clauses caller.
        Use buildN_v macros.
        (gfc_trans_omp_parallel_do, gfc_trans_omp_parallel_sections,
        gfc_trans_omp_parallel_workshare, gfc_trans_omp_sections,
        gfc_trans_omp_single, gfc_trans_omp_workshare): New functions.
        (gfc_trans_omp_directive): Use them.
        * parse.c (parse_omp_do): Allow new_st.op == EXEC_NOP.
        * openmp.c (resolve_omp_clauses): Check for list items present
        in multiple clauses.
        (resolve_omp_do): Check that iteration variable is not THREADPRIVATE
        and is not present in any clause variable lists other than PRIVATE
        or LASTPRIVATE.

        * gfortran.h (symbol_attribute): Add threadprivate bit.
        (gfc_common_head): Add threadprivate member, change use_assoc
        and saved into char to save space.
        (gfc_add_threadprivate): New prototype.
        * symbol.c (check_conflict): Handle threadprivate.
        (gfc_add_threadprivate): New function.
        (gfc_copy_attr): Copy threadprivate.
        * trans-openmp.c (gfc_trans_omp_clauses): Avoid creating a temporary
        if IF or NUM_THREADS is constant.  Create OMP_CLAUSE_SCHEDULE and
        OMP_CLAUSE_ORDERED.
        * resolve.c (resolve_symbol): Complain if a THREADPRIVATE symbol
        outside a module and not in COMMON has is not SAVEd.
        (resolve_equivalence): Ensure THREADPRIVATE objects don't get
        EQUIVALENCEd.
        * trans-common.c: Include target.h and rtl.h.
        (build_common_decl): Set DECL_TLS_MODEL if THREADPRIVATE.
        * trans-decl.c: Include rtl.h.
        (gfc_finish_var_decl): Set DECL_TLS_MODEL if THREADPRIVATE.
        * dump-parse-tree.c (gfc_show_attr): Handle THREADPRIVATE.
        * Make-lang.in (fortran/trans-decl.o): Depend on $(RTL_H).
        (fortran/trans-common.o): Depend on $(RTL_H) and $(TARGET_H).
        * openmp.c (gfc_match_omp_variable_list): Ensure COMMON block
        is from current namespace.
        (gfc_match_omp_threadprivate): Rewrite.
        (resolve_omp_clauses): Check some clause restrictions.
        * module.c (ab_attribute): Add AB_THREADPRIVATE.
        (attr_bits): Add THREADPRIVATE.
        (mio_symbol_attribute, mio_symbol_attribute): Handle threadprivate.
        (load_commons, write_common, write_blank_common): Adjust for type
        change of saved, store/load threadprivate bit from the integer
        as well.

        * types.def (BT_FN_UINT_UINT): New.
        (BT_FN_VOID_UINT_UINT): Remove.

        * trans-openmp.c (gfc_trans_omp_clauses, gfc_trans_omp_barrier,
        gfc_trans_omp_critical, gfc_trans_omp_flush, gfc_trans_omp_master,
        gfc_trans_omp_ordered, gfc_trans_omp_parallel): New functions.
        (gfc_trans_omp_directive): Use them.

        * openmp.c (expr_references_sym): Add SE argument, don't look
        into SE tree.
        (is_conversion): New function.
        (resolve_omp_atomic): Adjust expr_references_sym callers.  Handle
        promoted expressions.
        * trans-openmp.c (gfc_trans_omp_atomic): New function.
        (gfc_trans_omp_directive): Call it.

        * f95-lang.c (builtin_type_for_size): New function.
        (gfc_init_builtin_functions): Initialize synchronization and
        OpenMP builtins.
        * types.def: New file.
        * Make-lang.in (f95-lang.o): Depend on $(BUILTINS_DEF) and
        fortran/types.def.

        * trans-openmp.c: Rename GOMP_* tree codes into OMP_*.

        * dump-parse-tree.c (show_symtree): Don't crash if ns->proc_name
        is NULL.

        * dump-parse-tree.c (gfc_show_namelist, gfc_show_omp_node): New
        functions.
        (gfc_show_code_node): Call gfc_show_omp_node for EXEC_OMP_* nodes.

        * parse.c (parse_omp_do): Call pop_state before next_statement.
        * openmp.c (expr_references_sym, resolve_omp_atomic, resolve_omp_do):
        New functions.
        (gfc_resolve_omp_directive): Call them.
        * match.c (match_exit_cycle): Issue error if EXIT or CYCLE statement
        leaves an OpenMP structured block or if EXIT terminates !$omp do
        loop.

        * Make-lang.in (F95_PARSER_OBJS): Add fortran/openmp.o.
        (F95_OBJS): Add fortran/trans-openmp.o.
        (fortran/trans-openmp.o): Depend on $(GFORTRAN_TRANS_DEPS).
        * lang.opt: Add -fopenmp option.
        * options.c (gfc_init_options): Initialize it.
        (gfc_handle_option): Handle it.
        * gfortran.h (ST_OMP_ATOMIC, ST_OMP_BARRIER, ST_OMP_CRITICAL,
        ST_OMP_END_CRITICAL, ST_OMP_END_DO, ST_OMP_END_MASTER,
        ST_OMP_END_ORDERED, ST_OMP_END_PARALLEL, ST_OMP_END_PARALLEL_DO,
        ST_OMP_END_PARALLEL_SECTIONS, ST_OMP_END_PARALLEL_WORKSHARE,
        ST_OMP_END_SECTIONS, ST_OMP_END_SINGLE, ST_OMP_END_WORKSHARE,
        ST_OMP_DO, ST_OMP_FLUSH, ST_OMP_MASTER, ST_OMP_ORDERED,
        ST_OMP_PARALLEL, ST_OMP_PARALLEL_DO, ST_OMP_PARALLEL_SECTIONS,
        ST_OMP_PARALLEL_WORKSHARE, ST_OMP_SECTIONS, ST_OMP_SECTION,
        ST_OMP_SINGLE, ST_OMP_THREADPRIVATE, ST_OMP_WORKSHARE): New
        statement codes.
        (OMP_LIST_PRIVATE, OMP_LIST_FIRSTPRIVATE, OMP_LIST_LASTPRIVATE,
        OMP_LIST_COPYPRIVATE, OMP_LIST_SHARED, OMP_LIST_COPYIN,
        OMP_LIST_PLUS, OMP_LIST_REDUCTION_FIRST, OMP_LIST_MULT,
        OMP_LIST_SUB, OMP_LIST_AND, OMP_LIST_OR, OMP_LIST_EQV,
        OMP_LIST_NEQV, OMP_LIST_MAX, OMP_LIST_MIN, OMP_LIST_IAND,
        OMP_LIST_IOR, OMP_LIST_IEOR, OMP_LIST_REDUCTION_LAST, OMP_LIST_NUM):
        New OpenMP variable list types.
        (gfc_omp_clauses): New typedef.
        (gfc_get_omp_clauses): Define.
        (EXEC_OMP_CRITICAL, EXEC_OMP_DO, EXEC_OMP_FLUSH, EXEC_OMP_MASTER,
        EXEC_OMP_ORDERED, EXEC_OMP_PARALLEL, EXEC_OMP_PARALLEL_DO,
        EXEC_OMP_PARALLEL_SECTIONS, EXEC_OMP_PARALLEL_WORKSHARE,
        EXEC_OMP_SECTIONS, EXEC_OMP_SINGLE, EXEC_OMP_WORKSHARE,
        EXEC_OMP_ATOMIC, EXEC_OMP_BARRIER, EXEC_OMP_END_NOWAIT,
        EXEC_OMP_END_SINGLE): New OpenMP gfc_exec_op codes.
        (struct gfc_code): Add omp_clauses, omp_name, omp_namelist
        and omp_bool fields to ext union.
        (flag_openmp): Declare.
        (gfc_free_omp_clauses, gfc_resolve_omp_directive): New prototypes.
        * scanner.c (openmp_flag, openmp_locus): New variables.
        (skip_free_comments, skip_fixed_comments, gfc_next_char_literal):
        Handle OpenMP directive lines and conditional compilation magic
        comments.
        * parse.h (COMP_OMP_STRUCTURED_BLOCK): New compile state.
        * parse.c (decode_omp_directive, parse_omp_do, parse_omp_atomic,
        parse_omp_structured_block): New functions.
        (next_free, next_fixed): Parse OpenMP directives.
        (case_executable, case_exec_markers, case_decl): Add ST_OMP_*
        codes.
        (gfc_ascii_statement): Handle ST_OMP_* codes.
        (parse_executable): Rearrange the loop slightly, so that
        parse_omp_do can return next_statement.
        * match.h (gfc_match_omp_eos, gfc_match_omp_atomic,
        gfc_match_omp_barrier, gfc_match_omp_critical, gfc_match_omp_do,
        gfc_match_omp_flush, gfc_match_omp_master, gfc_match_omp_ordered,
        gfc_match_omp_parallel, gfc_match_omp_parallel_do,
        gfc_match_omp_parallel_sections, gfc_match_omp_parallel_workshare,
        gfc_match_omp_sections, gfc_match_omp_single,
        gfc_match_omp_threadprivate, gfc_match_omp_workshare,
        gfc_match_omp_end_nowait, gfc_match_omp_end_single): New prototypes.
        * resolve.c (resolve_blocks): Ignore EXEC_OMP_* block directives.
        (resolve_code): Call gfc_resolve_omp_directive on EXEC_OMP_*
        directives.
        * trans.c (gfc_trans_code): Call gfc_trans_omp_directive for
        EXEC_OMP_* directives.
        * st.c (gfc_free_statement): Handle EXEC_OMP_* statement freeing.
        * trans-stmt.h (gfc_trans_omp_directive): New prototype.
        * openmp.c: New file.
        * trans-openmp.c: New file.

2006-02-13  Andrew Pinski  <pinskia@physics.uc.edu>
            Jakub Jelinek  <jakub@redhat.com>

        PR fortran/26246
        * trans-decl.c (gfc_get_symbol_decl, gfc_get_fake_result_decl): Use
        gfc_add_decl_to_function rather than gfc_finish_var_decl on length.

2006-02-13  Paul Thomas  <pault@gcc.gnu.org>

        PR fortran/26074
        PR fortran/25103
        * resolve.c (resolve_symbol): Extend the requirement that module
        arrays have constant bounds to those in the main program.  At the
        same time simplify the array bounds, to avoiding trapping parameter
        array references, and exclude automatic character length from main
        and modules. Rearrange resolve_symbol and resolve_derived to put as
        each flavor together, as much as is possible and move all specific
        code for flavors FL_VARIABLE, FL_PROCEDURE and FL_PARAMETER into new
        functions.
        (resolve_fl_var_and_proc, resolve_fl_variable, resolve_fl_procedure):
        New functions to do work of resolve_symbol.
        (resolve_index_expr): New function that is called from resolved_symbol
        and is extracted from resolve_charlen.
        (resolve_charlen): Call this new function.
        (resolve_fl_derived): Renamed resolve_derived to be consistent with
        the naming of the new functions for the other flavours.  Change the
        charlen checking so that the style is consistent with other similar
        checks. Add the generation of the gfc_dt_list, removed from resolve_
        symbol.

        PR fortran/20861
        * resolve.c (resolve_actual_arglist): Prevent internal procedures
        from being dummy arguments.

        PR fortran/20871
        * resolve.c (resolve_actual_arglist): Prevent pure but non-intrinsic
        procedures from being dummy arguments.

        PR fortran/25083
        * resolve.c (check_data_variable): Add test that data variable is in
        COMMON.

        PR fortran/25088
        * resolve.c (resolve_call): Add test that the subroutine does not
        have a type.

2006-02-12  Erik Edelmann  <eedelman@gcc.gnu.org>

        PR fortran/25806
        * trans-array.c (gfc_trans_allocate_array_storage): New argument
        dealloc; free the temporary only if dealloc is true.
        (gfc_trans_allocate_temp_array): New argument bool dealloc, to be
        passed onwards to gfc_trans_allocate_array_storage.
        (gfc_trans_array_constructor, gfc_conv_loop_setup): Update call to
        gfc_trans_allocate_temp_array.
        * trans-array.h (gfc_trans_allocate_temp_array): Update function
        prototype.
        * trans-expr.c (gfc_conv_function_call): Set new argument 'dealloc'
        to gfc_trans_allocate_temp_array to false in case of functions
        returning pointers.
        (gfc_trans_arrayfunc_assign): Return NULL for functions returning
        pointers.

2006-02-10  Steven G. Kargl  <kargls@comcast.net>

        PR fortran/20858
        *decl.c (variable_decl): Improve error message.  Remove initialization
        typespec.  Wrap long line.
        *expr.c (gfc_check_pointer_assign): Permit checking of type, kind type,
        and rank.
        *simplify.c (gfc_simplify_null): Ensure type, kind type, and rank
        are set.


2006-02-10  Tobias Schl\81üter  <tobias.schlueter@physik.uni-muenchen.de>

        PR fortran/14771
        * arith.c (eval_intrinsic): Accept INTRINSIC_PARENTHESES.
        * expr.c (check_intrinsic_op): Likewise.
        * module.c (mio_expr): Likewise.

2006-02-09  Tobias Schl\81üter  <tobias.schlueter@physik.uni-muenchen.de>

        * dump-parse-tree.c: Update copyright years.
        * matchexp.c: Likewise.
        * module.c: Likewise.

        PR fortran/14771
        * gfortran.h (gfc_intrinsic_op): Add INTRINSIC_PARENTHESES.
        * dump-parse-tree (gfc_show_expr): Handle INTRINSIC_PARENTHESES.
        * expr.c (simplify_intrinsic_op): Treat INTRINSIC_PARENTHESES as
        if it were INTRINSIC_UPLUS.
        * resolve.c (resolve_operator): Handle INTRINSIC_PARENTHESES.
        * match.c (intrinsic_operators): Add INTRINSIC_PARENTHESES.
        * matchexp.c (match_primary): Record parentheses surrounding
        numeric expressions.
        * module.c (intrinsics): Add INTRINSIC_PARENTHESES for module
        dumping.
        * trans-expr.c (gfc_conv_expr_op): Handle INTRINSIC_PARENTHESES.

2006-02-09  Paul Thomas  <pault@gcc.gnu.org>

        PR fortran/26038
        * trans-stmt.c (gfc_trans_allocate): Provide assumed character length
        scalar with missing backend_decl for the hidden dummy charlen.

        PR fortran/25059
        * interface.c (gfc_extend_assign): Remove detection of non-PURE
        subroutine in assignment interface, with gfc_error, and put it in
        * resolve.c (resolve_code).

        PR fortran/25070
        * interface.c (gfc_procedure_use): Flag rank checking for non-
        elemental, contained or interface procedures in call to
        (compare_actual_formal), where ranks are checked for assumed
        shape arrays..

2006-02-08  Francois-Xavier Coudert  <coudert@clipper.ens.fr>

        PR libfortran/25425
        * trans-decl.c (gfc_generate_function_code): Add new argument,
        pedantic, to set_std call.

2006-02-06  Thomas Koenig  <Thomas.Koenig@online.de>

        PR libfortran/23815
        * gfortran.texi: Document the GFORTRAN_CONVERT_UNIT environment
        variable.
        * invoke.texi:  Mention the "Runtime" chapter.
        Document the -fconvert= option.
        * gfortran.h:  Add options_convert.
        * lang.opt:  Add fconvert=little-endian, fconvert=big-endian,
        fconvert=native and fconvert=swap.
        * trans-decl.c (top level):  Add gfor_fndecl_set_convert.
        (gfc_build_builtin_function_decls):  Set gfor_fndecl_set_convert.
        (gfc_generate_function_code):  If -fconvert was specified,
        and this is the main program, add a call to set_convert().
        * options.c:  Handle the -fconvert options.

2006-02-06  Roger Sayle  <roger@eyesopen.com>

        * trans-stmt.c (gfc_evaluate_where_mask): Allow the NMASK argument
        to be NULL to indicate that the not mask isn't required.
        (gfc_trans_where_2): Remove PMASK argument.  Avoid calculating the
        pending mask for the last clause of a WHERE chain.  Update recursive
        call.
        (gfc_trans_forall_1): Update call to gfc_trans_where_2.
        (gfc_trans_where): Likewise.

2006-02-06  Jakub Jelinek  <jakub@redhat.com>

        Backport from gomp-20050608-branch
        * trans-decl.c (create_function_arglist): Handle dummy functions.

        * trans-decl.c (gfc_get_symbol_decl): Revert explicit setting of
        TYPE_SIZE_UNIT.
        (gfc_trans_vla_type_sizes): Also "gimplify"
        GFC_TYPE_ARRAY_DATAPTR_TYPE for GFC_DESCRIPTOR_TYPE_P types.
        * trans-array.c (gfc_trans_deferred_array): Call
        gfc_trans_vla_type_sizes.

        * trans-decl.c (saved_function_decls, saved_parent_function_decls):
        Remove unnecessary initialization.
        (create_function_arglist): Make sure __result has complete type.
        (gfc_get_fake_result_decl): Change current_fake_result_decl into
        a tree chain.  For entry master, create a separate variable
        for each result name.  For BT_CHARACTER results, call
        gfc_finish_var_decl on length even if it has been already created,
        but not pushdecl'ed.
        (gfc_trans_vla_type_sizes): For function/entry result, adjust
        result value type, not the FUNCTION_TYPE.
        (gfc_generate_function_code): Adjust for current_fake_result_decl
        changes.
        (gfc_trans_deferred_vars): Likewise.  Call gfc_trans_vla_type_sizes
        even on result if it is assumed-length character.

        * trans-decl.c (gfc_trans_dummy_character): Add SYM argument.
        Call gfc_trans_vla_type_sizes.
        (gfc_trans_auto_character_variable): Call gfc_trans_vla_type_sizes.
        (gfc_trans_vla_one_sizepos, gfc_trans_vla_type_sizes_1,
        gfc_trans_vla_type_sizes): New functions.
        (gfc_trans_deferred_vars): Adjust gfc_trans_dummy_character
        callers.  Call gfc_trans_vla_type_sizes on assumed-length
        character parameters.
        * trans-array.c (gfc_trans_array_bounds,
        gfc_trans_auto_array_allocation, gfc_trans_dummy_array_bias): Call
        gfc_trans_vla_type_sizes.
        * trans.h (gfc_trans_vla_type_sizes): New prototype.

        * trans-decl.c (gfc_build_qualified_array): For non-assumed-size
        arrays without constant size, create also an index var for
        GFC_TYPE_ARRAY_SIZE (type).  If the type is incomplete, complete
        it as 0..size-1.
        (gfc_create_string_length): Don't call gfc_defer_symbol_init
        if just creating DECL_ARGUMENTS.
        (gfc_get_symbol_decl): Call gfc_finish_var_decl and
        gfc_defer_symbol_init even if ts.cl->backend_decl is already
        set to a VAR_DECL that doesn't have DECL_CONTEXT yet.
        (create_function_arglist): Rework, so that hidden length
        arguments for CHARACTER parameters are created together with
        the parameters.  Resolve ts.cl->backend_decl for CHARACTER
        parameters.  If the argument is a non-constant length array
        or CHARACTER, ensure PARM_DECL has different type than
        its DECL_ARG_TYPE.
        (generate_local_decl): Call gfc_get_symbol_decl even
        for non-referenced non-constant length CHARACTER parameters
        after optionally issuing warnings.
        * trans-array.c (gfc_trans_array_bounds): Set last stride
        to GFC_TYPE_ARRAY_SIZE (type) to initialize it as well.
        (gfc_trans_dummy_array_bias): Initialize GFC_TYPE_ARRAY_SIZE (type)
        variable as well.

        * trans-expr.c (gfc_conv_expr_val): Fix comment typo.

        * trans-stmt.c (gfc_trans_simple_do): Fix comment.

2006-02-04  Roger Sayle  <roger@eyesopen.com>

        * dependency.c (gfc_check_dependency): Remove unused vars and nvars
        arguments.  Replace with an "identical" argument.  A full array
        reference to the same symbol is a dependency if identical is true.
        * dependency.h (gfc_check_dependency): Update prototype.
        * trans-array.h (gfc_check_dependency): Delete duplicate prototype.
        * trans-stmt.c: #include dependency.h for gfc_check_dependency.
        (gfc_trans_forall_1): Update calls to gfc_check_dependency.
        (gfc_trans_where_2): Likewise.  Remove unneeded variables.
        (gfc_trans_where_3): New function for simple non-dependent WHEREs.
        (gfc_trans_where): Call gfc_trans_where_3 to translate simple
        F90-style WHERE statements without internal dependencies.
        * Make-lang.in (trans-stmt.o): Depend upon dependency.h.

2006-02-05  H.J. Lu  <hongjiu.lu@intel.com>

        PR fortran/26041
        PR fortran/26064
        * resolve.c (resolve_types): New function.
        (resolve_codes): Likewise.
        (gfc_resolve): Use them.

2006-02-05  Roger Sayle  <roger@eyesopen.com>

        * trans-stmt.c (gfc_evaluate_where_mask): Use LOGICAL*1 for WHERE
        masks instead of LOGICAL*4.

2006-02-05  Jakub Jelinek  <jakub@redhat.com>

        * resolve.c (resolve_symbol): Initialize constructor_expr to NULL.

2006-02-04  Thomas Koenig  <Thomas.Koenig@online.de>

        PR fortran/25075
        check.c (identical_dimen_shape):  New function.
        (check_dot_product):  Use identical_dimen_shape() to check sizes
        for dot_product.
        (gfc_check_matmul):  Likewise.
        (gfc_check_merge):  Check conformance between tsource and fsource
        and between tsource and mask.
        (gfc_check_pack):  Check conformance between array and mask.

2006-02-03  Steven G. Kargl  <kargls@comcast>
            Paul Thomas  <pault@gcc.gnu.org>

        PR fortran/20845
        * resolve.c (resolve_symbol): Default initialization of derived type
        component reguires the SAVE attribute.

2006-02-02  Steven G. Kargl  <kargls@comcast>

        PR fortran/24958
        match.c (gfc_match_nullify):  Free the list from head not tail.

        PR fortran/25072
        * match.c (match_forall_header): Fix internal error caused by bogus
        gfc_epxr pointers.


2006-01-31  Thomas Koenig  <Thomas.Koenig@online.de>

        PR fortran/26039
        expr.c (gfc_check_conformance):  Reorder error message
        to avoid plural.
        check.c(gfc_check_minloc_maxloc):  Call gfc_check_conformance
        for checking arguments array and mask.
        (check_reduction):  Likewise.

2006-01-30  Erik Edelmann  <eedelman@gcc.gnu.org>

        PR fortran/24266
        * trans-io.c (set_internal_unit): Check the rank of the
        expression node itself instead of its symbol.

2006-01-29  Paul Thomas  <pault@gcc.gnu.org>

        PR fortran/18578
        PR fortran/18579
        PR fortran/20857
        PR fortran/20885
        * interface.c (compare_actual_formal): Error for INTENT(OUT or INOUT)
        if actual argument is not a variable.

2006-01-28  Paul Thomas  <pault@gcc.gnu.org>

        PR fortran/17911
        * expr.c (gfc_check_assign, gfc_check_pointer_assign): Emit error if
        the lvalue is a use associated procedure.

        PR fortran/20895
        PR fortran/25030
        * expr.c (gfc_check_pointer_assign): Emit error if lvalue and rvalue
        character lengths are not the same.  Use gfc_dep_compare_expr for the
        comparison.
        * gfortran.h: Add prototype for gfc_dep_compare_expr.
        * dependency.h: Remove prototype for gfc_dep_compare_expr.

2006-01-27  Paul Thomas  <pault@gcc.gnu.org>

        PR fortran/25964
        * resolve.c (resolve_function): Add GFC_ISYM_LOC to the list of
        generic_ids exempted from assumed size checking.

2006-01-27  Jakub Jelinek  <jakub@redhat.com>

        PR fortran/25324
        * Make-lang.in (fortran/scanner.o): Depend on toplev.h.
        * lang.opt (fpreprocessed): New option.
        * scanner.c: Include toplev.h.
        (gfc_src_file, gfc_src_preprocessor_lines): New variables.
        (preprocessor_line): Unescape filename if there were any
        backslashes.
        (load_file): If initial and gfc_src_file is not NULL,
        use it rather than opening the file.  If gfc_src_preprocessor_lines
        has non-NULL elements, pass it to preprocessor_line.
        (unescape_filename, gfc_read_orig_filename): New functions.
        * gfortran.h (gfc_option_t): Add flag_preprocessed.
        (gfc_read_orig_filename): New prototype.
        * options.c (gfc_init_options): Clear flag_preprocessed.
        (gfc_post_options): If flag_preprocessed, call
        gfc_read_orig_filename.
        (gfc_handle_option): Handle OPT_fpreprocessed.
        * lang-specs.h: Pass -fpreprocessed to f951 if preprocessing
        sources.

2006-01-27  Erik Edelmann  <eedelman@gcc.gnu.org>

        * symbol.c (free_old_symbol): Fix confusing comment, and add code
          to free old_symbol->formal.

2006-01-26  Paul Thomas  <pault@gcc.gnu.org>

        PR fortran/25964
        * resolve.c (resolve_function): Exclude statement functions from
        global reference checking.

        PR fortran/25084
        PR fortran/20852
        PR fortran/25085
        PR fortran/25086
        * resolve.c (resolve_function): Declare a gfc_symbol to replace the
        references through the symtree to the symbol associated with the
        function expresion. Give error on reference to an assumed character
        length function is defined in an interface or an external function
        that is not a dummy argument.
        (resolve_symbol): Give error if an assumed character length function
        is array-valued, pointer-valued, pure or recursive. Emit warning
        that character(*) value functions are obsolescent in F95.

        PR fortran/25416
        * trans-expr.c (gfc_conv_function_call): The above patch to resolve.c
        prevents any assumed character length function call from getting here
        except intrinsics such as SPREAD. In this case, ensure that no
        segfault occurs from referencing non-existent charlen->length->
        expr_type and provide a backend_decl for the charlen from the charlen
        of the first actual argument.

        Cure temp name confusion.
        * trans-expr.c (gfc_get_interface_mapping_array): Change name of
        temporary from "parm" to "ifm" to avoid clash with temp coming from
        trans-array.c.

2006-01-25  Erik Edelmann  <eedelman@gcc.gnu.org>

        PR fortran/25716
        * symbol.c (free_old_symbol): New function.
        (gfc_commit_symbols): Use it.
        (gfc_commit_symbol): New function.
        (gfc_use_derived): Use it.
        * gfortran.h: Add prototype for gfc_commit_symbol.
        * intrinsic.c (gfc_find_function): Search in 'conversion'
        if not found in 'functions'.
        (gfc_convert_type_warn): Add a symtree to the new
        expression node, and commit the new symtree->n.sym.
        * resolve.c (gfc_resolve_index): Make sure typespec is
        properly initialized.

2006-01-23  Paul Thomas  <pault@gcc.gnu.org>

        PR fortran/25901
        * decl.c (get_proc_name): Replace subroutine and function attributes
        in "already defined" test by the formal arglist pointer being non-NULL.

        Fix regression in testing of admissability of attributes.
        * symbol.c (gfc_add_attribute): If the current_attr has non-zero
        intent, do not do the check for a dummy being used.
        * decl.c (attr_decl1): Add current_attr.intent as the third argument
        in the call to gfc_add_attribute.
        * gfortran.h: Add the third argument to the prototype for
        gfc_add_attribute.

2006-01-21  Joseph S. Myers  <joseph@codesourcery.com>

        * gfortranspec.c (lang_specific_driver): Update copyright notice
        date.

2006-01-21  Paul Thomas  <pault@gcc.gnu.org>

        PR fortran/25124
        PR fortran/25625
        * decl.c (get_proc_name): If there is an existing
        symbol in the encompassing namespace, call errors
        if it is a procedure of the same name or the kind
        field is set, indicating a type declaration.

        PR fortran/20881
        PR fortran/23308
        PR fortran/25538
        PR fortran/25710
        * decl.c (add_global_entry): New function to check
        for existing global symbol with this name and to
        create new one if none exists.
        (gfc_match_entry): Call add_global_entry before
        matching argument lists for subroutine and function
        entries.
        * gfortran.h: Prototype for existing function,
        global_used.
        * resolve.c (resolve_global_procedure): New function
        to check global symbols for procedures.
        (resolve_call, resolve_function): Calls to this
        new function for non-contained and non-module
        procedures.
        * match.c (match_common): Add check for existing
        global symbol, creat one if none exists and emit
        error if there is a clash.
        * parse.c (global_used): Remove static and use the
        gsymbol name rather than the new_block name, so that
        the function can be called from resolve.c.
        (parse_block_data, parse_module, add_global_procedure):
        Improve checks for existing gsymbols.  Emit error if
        already defined or if references were to another type.
        Set defined flag.

        PR fortran/PR24276
        * trans-expr.c (gfc_conv_aliased_arg): New function called by 
        gfc_conv_function_call that coverts an expression for an aliased
        component reference to a derived type array into a temporary array
        of the same type as the component.  The temporary is passed as an
        actual argument for the procedure call and is copied back to the
        derived type after the call.
        (is_aliased_array): New function that detects an array reference
        that is followed by a component reference.
        (gfc_conv_function_call): Detect an aliased actual argument with
        is_aliased_array and convert it to a temporary and back again
        using gfc_conv_aliased_arg.

2006-01-19  Tobias Schl\81üter  <tobias.schlueter@physik.uni-muenchen.de>

        * gfortranspec.c: Update copyright years.
        * trans.c: Likewise.
        * trans-array.c: Likewise.
        * trans-array.h: Likewise.
        * trans-decl.c: Likewise.
        * trans-stmt.c: Likewise.
        * trans-stmt.h: Likewise.
        * trans-types.c: Likewise.

2006-01-18  Tobias Schl\81üter  <tobias.schlueter@physik.uni-muenchen.de>

        PR fortran/18540
        PR fortran/18937
        * gfortran.h (BBT_HEADER): Move definition up.
        (gfc_st_label): Add BBT_HEADER, remove 'prev' and 'next'.
        * io.c (format_asterisk): Adapt initializer.
        * resolve.c (resolve_branch): Allow FORTRAN 66 cross-block GOTOs
        as extension.
        (warn_unused_label): Take gfc_st_label label as argument, adapt to
        new data structure.
        (gfc_resolve): Adapt call to warn_unused_label.
        * symbol.c (compare_st_labels): New function.
        (gfc_free_st_label, free_st_labels, gfc_get_st_label): Convert to
        using balanced binary tree.
        * decl.c (match_char_length, gfc_match_old_kind_spec): Do away
        with 'cnt'.
        (warn_unused_label): Adapt to binary tree.
        * match.c (gfc_match_small_literal_int): Only set cnt if non-NULL.
        * primary.c (match_kind_param): Do away with cnt.

2006-01-18  Paul Thomas  <pault@gcc.gnu.org>

        PR fortran/20869
        PR fortran/20875
        PR fortran/25024
        * symbol.c (check_conflict): Add pointer valued elemental
        functions and internal procedures with the external attribute
        to the list of conflicts.
        (gfc_add_attribute): New catch-all function to perform the
        checking of symbol attributes for attribute declaration
        statements.
        * decl.c (attr_decl1): Call gfc_add_attribute for each of -
        (gfc_match_external, gfc_match_intent, gfc_match_intrinsic,
        gfc_match_pointer, gfc_match_dimension, gfc_match_target):
        Remove spurious calls to checks in symbol.c.  Set the
        attribute directly and use the call to attr_decl() for
        checking.
        * gfortran.h:  Add prototype for gfc_add_attribute.

        PR fortran/25785
        * resolve.c (resolve_function): Exclude PRESENT from assumed size
        argument checking. Replace strcmp's with comparisons with generic
        codes.

2006-01-16  Rafael \81Ávila de Esp\81índola  <rafael.espindola@gmail.com>

        * gfortranspec.c (lang_specific_spec_functions): Remove.

2006-01-16  Richard Guenther  <rguenther@suse.de>

        * trans-stmt.c (gfc_trans_if_1): Use fold_buildN and build_int_cst.
        (gfc_trans_arithmetic_if): Likewise.
        (gfc_trans_simple_do): Likewise.
        (gfc_trans_do): Likewise.
        (gfc_trans_do_while): Likewise.
        (gfc_trans_logical_select): Likewise.
        (gfc_trans_forall_loop): Likewise.
        (generate_loop_for_temp_to_lhs): Likewise.
        (generate_loop_for_rhs_to_temp): Likewise.
        (gfc_trans_allocate): Likewise.
        * trans.c (gfc_add_expr_to_block): Do not fold expr again.

2006-01-16  Richard Guenther  <rguenther@suse.de>

        * trans-expr.c (gfc_conv_function_call): Use fold_build2.
        * trans-stmt.c (gfc_trans_goto): Likewise.  Use build_int_cst.
        * trans.c (gfc_trans_runtime_check): Don't fold the condition
        again.

2006-01-13  Steven G. Kargl  <kargls@comcast.net>

        PR fortran/25756
        * symbol.c (gfc_free_st_label): Give variable meaningful name. Remove
        unneeded parenthesis. Fix-up the head of the list (2 lines gleaned
        from g95).

2006-01-13  Diego Novillo  <dnovillo@redhat.com>

        * trans.c (gfc_add_expr_to_block): Do not fold tcc_statement
        nodes.

2006-01-11  Tobias Schl\81üter  <tobias.schlueter@physik.uni-muenchen.de>

        * parse.c (next_fixed): Remove superfluous string concatenation.

2006-01-11  Bernhard Fischer  <rep.nop@aon.at>

        PR fortran/25486
        * scanner.c (load_line): use maxlen to determine the line-length used
        for padding lines in fixed form.

2006-01-11  Paul Thomas  <pault@gcc.gnu.org>

        PR fortran/25730
        * trans-types.c (copy_dt_decls_ifequal): Copy backend decl for
        character lengths.

2006-01-09  Andrew Pinski  <pinskia@physics.uc.edu>

        fortran/24936
        * trans-stmt.c (gfc_trans_pointer_assign_need_temp): Use fold_convert
        to avoid type mismatch.

2006-01-09  Andrew Pinski  <pinskia@physics.uc.edu>

        PR fortran/21977
        * trans-decl.c (gfc_generate_function_code): Move the NULLing of
        current_fake_result_decl down to below generate_local_vars.

2006-01-09  Feng Wang  <fengwang@nudt.edu.cn>

        PR fortran/12456
        * trans-expr.c (gfc_to_single_character): New function that converts
        string to single character if its length is 1.
        (gfc_build_compare_string):New function that compare string and handle
        single character specially.
        (gfc_conv_expr_op): Use gfc_build_compare_string.
        (gfc_trans_string_copy): Use gfc_to_single_character.
        * trans-intrinsic.c (gfc_conv_intrinsic_strcmp): Use
        gfc_build_compare_string.
        * trans.h (gfc_build_compare_string): Add prototype.

2006-01-09  Feng Wang  <fengwang@nudt.edu.cn>

        * simplify.c (gfc_simplify_char): Use UCHAR_MAX instead of literal
        constant.
        (gfc_simplify_ichar): Get the result from unsinged char and in the
        range 0 to UCHAR_MAX instead of CHAR_MIN to CHAR_MAX.

2006-01-08  Erik Edelmann  <eedelman@gcc.gnu.org>

        PR fortran/25093
        * resolve.c (resolve_fntype): Check that PUBLIC functions
        aren't of PRIVATE type.

2006-01-07  Tobias Schl"uter  <tobias.schlueter@physik.uni-muenchen.de>

        * decl.c (gfc_match_function_decl): Correctly error out in case of
        omitted function argument list.

2006-01-07  Paul Thomas  <pault@gcc.gnu.org>

        PR fortran/22146
        * trans-array.c (gfc_reverse_ss): Remove static attribute.
        (gfc_walk_elemental_function_args): Replace gfc_expr * argument for
        the function call with the corresponding gfc_actual_arglist*.  Change
        code accordingly.
        (gfc_walk_function_expr): Call to gfc_walk_elemental_function_args
        now requires the actual argument list instead of the expression for
        the function call.
        * trans-array.h: Modify the prototype for gfc_walk_elemental_function_args
        and provide a prototype for gfc_reverse_ss.
        * trans-stmt.h (gfc_trans_call): Add the scalarization code for the case
        where an elemental subroutine has array valued actual arguments.

        PR fortran/25029
        PR fortran/21256
        PR fortran/20868
        PR fortran/20870
        * resolve.c (check_assumed_size_reference): New function to check for upper
        bound in assumed size array references.
        (resolve_assumed_size_actual): New function to do a very restricted scan
        of actual argument expressions of those procedures for which incomplete
        assumed size array references are not allowed.
        (resolve_function, resolve_call): Switch off assumed size checking of
        actual arguments, except for elemental procedures and intrinsic
        inquiry functions, in some circumstances.
        (resolve_variable): Call check_assumed_size_reference.

2006-01-05  Jerry DeLisle  <jvdelisle@gcc.gnu.org>

        PR fortran/24268
        * io.c (next_char_not_space): New function that returns the next
        character that is not white space.
        (format_lex): Use the new function to skip whitespace within
        a format string.

2006-01-05  Erik Edelmann  <eedelman@gcc.gnu.org>

        PR fortran/23675
        * expr.c (gfc_expr_set_symbols_referenced): New function.
        * gfortran.h: Add a function prototype for it.
        * resolve.c (resolve_function): Use it for
        use associated character functions lengths.
        * expr.c, gfortran.h, resolve.c: Updated copyright years.

2006-01-03  Steven G. Kargl  <kargls@comcast.net>

        PR fortran/25101
        * resolve.c (resolve_forall_iterators):  Check for scalar variables;
        Check stride is nonzero.

2006-01-02  Steven G. Kargl  <kargls@comcast.net>

        PR fortran/24640
        * parse.c (next_free): Check for whitespace after the label.
        * match.c (gfc_match_small_literal_int): Initialize cnt variable.

2006-01-01  Steven G. Kargl  <kargls@comcast.net>

        * ChangeLog: Split previous years into ...
        * ChangeLog-2002: here.
        * ChangeLog-2003: here.
        * ChangeLog-2004: here.
        * ChangeLog-2005: here.