Revert empty class parameter passing ABI changes.

[gcc.git] / gcc / cp / ChangeLog

2016-04-14  Jason Merrill  <jason@redhat.com>

        * call.c, decl.c, error.c, cp-tree.h, decl.c: Revert empty
        parameter ABI change.

2016-04-13  Martin Sebor  <msebor@redhat.com>

        PR c++/69517
        PR c++/70019
        PR c++/70588
        * cp-tree.h (throw_bad_array_length, build_vla_check): Declare new
        functions.
        * decl.c (check_initializer, cp_finish_decl): Call them.
        (reshape_init_r): Reject incompletely braced intializer-lists
        for VLAs.
        * init.c (throw_bad_array_length, build_vla_check)
        (build_vla_size_check, build_vla_init_check): Define new functions.
        * typeck2.c (split_nonconstant_init_1): Use variably_modified_type_p()
        to detect a VLA.
        (store_init_value): Same.

2016-04-13  Jason Merrill  <jason@redhat.com>

        Warn about empty parameter ABI with -Wabi=9.
        * call.c (empty_class_msg, mark_for_abi_warning)
        (warn_empty_class_abi): New.
        (build_call_a): Use them.
        * decl.c (store_parm_decls): Use mark_for_abi_warning.
        * error.c (pp_format_to_string): New.

        Pass empty class parameters like C.
        * call.c (pass_as_empty_struct, empty_class_arg): New.
        (type_passed_as, build_x_va_arg): Use pass_as_empty_struct.
        (build_call_a): Use empty_class_arg.
        * cp-tree.h (CPTI_EMPTY_STRUCT, empty_struct_type): New.
        * decl.c (cxx_init_decl_processing): Create empty_struct_type.

2016-04-13  Jason Merrill  <jason@redhat.com>

        PR c++/70627
        * decl.c (start_enum): Don't change an existing ENUM_UNDERLYING_TYPE.

2016-04-13  Paolo Carlini  <paolo.carlini@oracle.com>

        PR c++/70635
        * pt.c (resolve_typename_type): Fix typos in infinite recursion
        avoidance mechanism.

2016-04-13  Jason Merrill  <jason@redhat.com>

        PR c++/70634
        * pt.c (instantiation_dependent_uneval_expression_p): Split out
        from instantiation_dependent_expression_p.
        (value_dependent_expression_p): Use it for unevaluated operands.
        (instantiation_dependent_r): Don't check value-dependence.
        (instantiation_dependent_expression_p): Check
        value-dependence of the expression as a whole.
        * cp-tree.h: Declare instantiation_dependent_uneval_expression_p.
        * semantics.c (finish_decltype_type): Use it.

        * constexpr.c (potential_nondependent_constant_expression): New.
        (potential_nondependent_static_init_expression): New.
        (maybe_constant_value_1, fold_non_dependent_expr)
        (maybe_constant_init): Use them.
        * pt.c (instantiate_non_dependent_expr_sfinae)
        (instantiate_non_dependent_or_null, convert_nontype_argument): Use
        them.
        * cp-tree.h: Declare them.

2016-04-13  Jakub Jelinek  <jakub@redhat.com>

        PR c++/70594
        * decl.c (pop_labels_1): Removed.
        (note_label, sort_labels): New functions.
        (pop_labels): During named_labels traversal, just push the slot
        pointers into a vector, then qsort it by DECL_UID and only then
        call pop_label and chain it into BLOCK_VARS.

2016-04-13  Jason Merrill  <jason@redhat.com>

        PR c++/70615
        * cp-gimplify.c (cp_genericize_r): Expand PTRMEM_CST here.
        (cp_gimplify_expr): Not here.

2016-04-12  Patrick Palka  <ppalka@gcc.gnu.org>

        PR c++/70610
        * tree.c (lvalue_kind) [NON_DEPENDENT_EXPR]: Unconditionally
        recurse into it.
        * typeck.c (build_x_conditional_expr): Unconditionally remember
        that the result is an lvalue or xvalue.

2016-04-12  Jason Merrill  <jason@redhat.com>

        * class.c (is_really_empty_class): A zero-length array is empty.
        An unnamed bit-field doesn't make a class non-empty.

2016-04-12  Paolo Carlini  <paolo.carlini@oracle.com>

        PR c++/68722
        * parser.c (cp_parser_cache_defarg): When file ends in default
        argument simply return error_mark_node.

2016-04-12  Nathan Sidwell  <nathan@acm.org>

        PR c++/70501
        * constexpr.c (cxx_eval_bare_aggregate): Handle VECTOR_TYPE
        similarly to PMF.

2016-04-11  Jason Merrill  <jason@redhat.com>

        * mangle.c (decl_is_template_id): The template itself counts as a
        template-id.

2016-04-08  Patrick Palka  <ppalka@gcc.gnu.org>

        PR c++/70590
        PR c++/70452
        * constexpr.c (cxx_eval_outermost_expression): Call unshare_expr
        on the result if it's not a CONSTRUCTOR.

2016-04-07  Patrick Palka  <ppalka@gcc.gnu.org>

        PR c++/70452
        * constexpr.c (find_constructor): New function.
        (unshare_constructor): New function.
        (cxx_eval_call_expression): Use unshare_constructor instead of
        unshare_expr.
        (find_array_ctor_elt): Likewise.
        (cxx_eval_vec_init_1): Likewise.
        (cxx_eval_store_expression): Likewise.
        (cxx_eval_constant_expression): Likewise.

2016-04-06  Patrick Palka  <ppalka@gcc.gnu.org>

        PR c/70436
        * cp-tree.h (FOR_EACH_CLONE): Restructure macro to avoid
        potentially generating a future -Wparentheses warning in its
        callers.

2016-04-06  Jason Merrill  <jason@redhat.com>

        * class.c (check_abi_tags): Fix function template handling.

2016-04-05  Nathan Sidwell  <nathan@acm.org>

        PR c++/70512
        * class.c (fixup_may_alias): New.
        (fixup_attribute_variants): Call it.

2016-04-05  Patrick Palka  <ppalka@gcc.gnu.org>

        PR c++/70452
        * constexpr.c (struct fundef_copy): New struct.
        (struct fundef_copies_table_t): New struct.
        (fundef_copies_table): New static variable.
        (maybe_initialize_fundef_copies_table): New static function.
        (get_fundef_copy): New static function.
        (save_fundef_copy): New static function.
        (cxx_eval_call_expression): Use get_fundef_copy, and
        save_fundef_copy.
        (constexpr_call_table): Add "deletable" GTY marker.

2016-04-05  Patrick Palka  <ppalka@gcc.gnu.org>

        PR c++/70452
        * cp-tree.h (class cache_map): Remove.
        * constexpr.c (cv_cache): Change type to
        GTY((deletable)) hash_map<tree, tree> *.
        (maybe_constant_value): Adjust following the change to cv_cache.
        (clear_cv_cache): New static function.
        (clear_cv_and_fold_caches): Use it.
        * cp-gimplify.c (fold_cache): Change type to
        GTY((deletable)) hash_map<tree, tree> *.
        (clear_fold_cache): Adjust following the change to fold_cache.
        (cp_fold): Likewise.

2016-04-02  Martin Sebor  <msebor@redhat.com>

        PR c++/67376
        PR c++/70170
        PR c++/70172
        PR c++/70228
        * constexpr.c (diag_array_subscript): New function.
        (cxx_eval_array_reference): Detect out of bounds array indices.

2016-04-01  Jason Merrill  <jason@redhat.com>

        PR c++/70449
        PR c++/70344
        * pt.c (instantiate_decl): A function isn't fully defined if
        DECL_INITIAL is error_mark_node.
        * constexpr.c (cxx_eval_call_expression): Likewise.

2016-04-01  Jakub Jelinek  <jakub@redhat.com>
            Marek Polacek  <polacek@redhat.com>

        PR c++/70488
        * init.c (warn_placement_new_too_small): Test whether
        DECL_SIZE_UNIT or TYPE_SIZE_UNIT are integers that fit into uhwi.

2016-04-01  Nathan Sidwell  <nathan@acm.org>

        PR c++/68475
        * decl.c (check_redeclaration_exception_specification): Check
        regardless of -fno-exceptions.
        * typeck2.c (merge_exception_specifiers): Relax assert by checking
        flag_exceptions too.

2016-03-31  Nathan Sidwell  <nathan@acm.org>

        * decl.c (start_preparsed_function): Remove unnecessary bracing.
        (finish_destructor_body): Don't emit operator delete here.

2016-03-31  Nathan Sidwell  <nathan@acm.org>

        PR c++/70393
        * constexpr.c (cxx_eval_store_expression): Keep CONSTRUCTOR
        elements in field order.

2016-03-31  Marek Polacek  <polacek@redhat.com>

        PR c/70297
        * decl.c (duplicate_decls): Also set TYPE_ALIGN and TYPE_USER_ALIGN.

2016-03-31  Richard Biener  <rguenther@suse.de>

        PR c++/70430
        * typeck.c (cp_build_binary_op): Fix operand order of vector
        conditional in truth op handling.

2016-03-29  Jason Merrill  <jason@redhat.com>

        PR c++/70353
        * decl.c (make_rtl_for_nonlocal_decl): Don't defer local statics
        in constexpr functions.

2016-03-28  Jason Merrill  <jason@redhat.com>

        PR c++/70422
        PR c++/64266
        PR c++/70353
        * decl.c, pt.c, constexpr.c: Revert last patch.

2016-03-25  Jason Merrill  <jason@redhat.com>
            Martin Liška  <mliska@suse.cz>

        PR c++/64266
        PR c++/70353
        Core issue 1962
        * decl.c (cp_fname_init): Decay the initializer to pointer.
        (cp_make_fname_decl): Set DECL_DECLARED_CONSTEXPR_P,
        DECL_VALUE_EXPR, DECL_INITIALIZED_BY_CONSTANT_EXPRESSION_P.
        Don't call cp_finish_decl.
        * pt.c (tsubst_expr) [DECL_EXPR]: Set DECL_VALUE_EXPR,
        DECL_INITIALIZED_BY_CONSTANT_EXPRESSION_P.  Don't call cp_finish_decl.
        * constexpr.c (cxx_eval_constant_expression) [VAR_DECL]:
        Handle DECL_VALUE_EXPR.

2016-03-24  Jason Merrill  <jason@redhat.com>

        PR c++/70386
        * constexpr.c (cxx_eval_bare_aggregate): Handle PMFs.

        PR c++/70323
        * constexpr.c (cxx_eval_call_expression): Don't cache result if
        *overflow_p.

2016-03-24  Patrick Palka  <ppalka@gcc.gnu.org>

        PR c++/62212
        * tree.c (build_cplus_array_type): Determine type-dependentess
        with uses_template_parms instead of with dependent_type_p.

2016-03-23  Patrick Palka  <ppalka@gcc.gnu.org>

        PR c++/70347
        * typeck.c (process_init_constructor_union): If the initializer
        is empty, use the union's NSDMI if it has one.

2016-03-23  Patrick Palka  <ppalka@gcc.gnu.org>

        PR c++/70332
        * pt.c (tsubst_copy) [PARM_DECL]: Handle the use of 'this' in an
        NSDMI that's part of an aggregrate initialization.

2016-03-23  Jakub Jelinek  <jakub@redhat.com>

        PR c++/70001
        * constexpr.c (cxx_eval_vec_init_1): Reuse CONSTRUCTOR initializers
        for 1..max even for multi-dimensional arrays.  Call unshare_expr
        on it.

        PR c++/70323
        * constexpr.c (cxx_eval_constant_expression): Diagnose overflow
        on TREE_OVERFLOW constants.

        PR c++/70376
        * cp-gimplify.c (genericize_omp_for_stmt): Don't walk OMP_FOR_CLAUSES
        for OMP_TASKLOOP here.
        (cp_genericize_r): Handle OMP_TASKLOOP like OMP_TASK, except do call
        genericize_omp_for_stmt instead of cp_walk_tree on OMP_BODY.

2016-03-23  Alexandre Oliva  <aoliva@redhat.com>
            Jason Merrill  <jason@redhat.com>
            Jakub Jelinek  <jakub@redhat.com>

        PR c++/69315
        * cp-tree.h (defer_mark_used_calls, deferred_mark_used_calls): Remove.
        * decl.c (defer_mark_used_calls, deferred_mark_used_calls): Remove.
        (finish_function): Don't set or test them.
        * decl2.c (mark_used): Don't handle defer_mark_used_calls.

2016-03-23  Jason Merrill  <jason@redhat.com>

        PR c++/70344
        * constexpr.c (cxx_eval_call_expression): Catch invalid recursion.

2016-03-23  Marek Polacek  <polacek@redhat.com>

        PR c++/69884
        * pt.c (canonicalize_type_argument): Use OPT_Wignored_attributes.

2016-03-22  Ilya Enkovich  <enkovich.gnu@gmail.com>

        * call.c (build_conditional_expr_1): Always use original
        condition type for vector type checks and build.

2016-03-22  Patrick Palka  <ppalka@gcc.gnu.org>

        PR c++/70096
        * pt.c (tsubst_decl): Clear the DECL_MODE of the new decl.

2016-03-22  Patrick Palka  <ppalka@gcc.gnu.org>

        PR c++/70204
        * constexpr.c (non_const_var_error): Check
        DECL_INITIALIZED_BY_CONSTANT_EXPRESSION_P.

2016-03-21  Richard Henderson  <rth@redhat.com>

        PR c++/70273
        * decl.c (notice_forced_label_r): New.
        (cp_finish_decl): Use it.

2016-03-21  Jason Merrill  <jason@redhat.com>

        PR c++/70285
        * cp-gimplify.c (cp_fold) [COND_EXPR]: Handle bit-fields.

2016-03-18  Jason Merrill  <jason@redhat.com>

        PR c++/70139
        * constexpr.c (cxx_eval_call_expression): Fix trivial copy.

        PR c++/70147
        * class.c (vptr_via_virtual_p): New.
        (most_primary_binfo): Factor out of build_rtti_vtbl_entries.
        * cp-ubsan.c (cp_ubsan_dfs_initialize_vtbl_ptrs): Don't clear
        a vptr from any virtual base in a not-in-charge 'structor.

        * decl.c (build_clobber_this): Factor out of
        start_preparsed_function and begin_destructor_body.  Handle
        virtual bases better.

        * class.c (build_if_in_charge): Split out from build_base_path.
        * init.c (expand_virtual_init, expand_default_init): Use it.
        * call.c (build_special_member_call): Use it.

2016-03-18  Jakub Jelinek  <jakub@redhat.com>

        PR c++/70267
        * init.c (build_new_1): Complain and return error_mark_node
        if alloc_fn is not _Jv_AllocObject function returning pointer.

2016-03-18  Patrick Palka  <ppalka@gcc.gnu.org>

        PR c++/70205
        * search.c (adjust_result_of_qualified_name_lookup): Don't
        update the BASELINK_BINFO of DECL if the second call
        to lookup_base fails.

2016-03-18  Patrick Palka  <ppalka@gcc.gnu.org>

        PR c++/70218
        * parser.c (cp_parser_lambda_expression): Move call to
        pop_deferring_access_checks ahead of the call to
        cp_parser_end_tentative_firewall.

2016-03-17  Jakub Jelinek  <jakub@redhat.com>

        PR c++/70144
        * cp-tree.h (magic_varargs_p): Return int instead of bool.
        * call.c (magic_varargs_p): Return int instead of bool, return 2 for
        Cilk+ reductions, otherwise 1 for magic varargs and 0 for normal
        varargs.
        (build_over_call): If magic_varargs_p == 2, call reject_gcc_builtin,
        if magic_varargs_p == 1, call decay_conversion
        instead of mark_type_use.  Don't store error_mark_node arguments to
        argarray, instead return error_mark_node.

        PR c++/70272
        * decl.c (begin_destructor_body): Don't insert clobber if
        is_empty_class (current_class_type).

2016-03-17  Marek Polacek  <polacek@redhat.com>

        PR c++/70194
        * typeck.c (warn_for_null_address): New function.
        (cp_build_binary_op): Call it.

2016-03-16  Jason Merrill  <jason@redhat.com>

        PR c++/70259
        * decl.c (start_preparsed_function): Don't clobber an empty base.

2016-03-16  Jakub Jelinek  <jakub@redhat.com>

        PR c++/70147
        * cp-ubsan.c (cp_ubsan_dfs_initialize_vtbl_ptrs): Conditionalize
        BINFO_VIRTUAL_P vtable clearing on current_in_charge_parm.

        PR c++/70147
        * cp-ubsan.c (cp_ubsan_maybe_initialize_vtbl_ptrs): Temporarily
        set in_base_initializer.

2016-03-15  Marek Polacek  <polacek@redhat.com>

        PR c++/70209
        * tree.c (strip_typedefs): Call strip_typedefs again on the
        DECL_ORIGINAL_TYPE result.

2016-03-15  Jason Merrill  <jason@redhat.com>

        PR c++/70095
        * pt.c (instantiate_decl): Fix call to variable_template_p.

        PR c++/70141
        * pt.c (for_each_template_parm_r): Always walk into TYPENAME_TYPE.

2016-03-14  Casey Carter  <casey@carter.net>
            Jason Merrill  <jason@redhat.com>

        P0184R0: Generalizing the Range-Based For Loop
        * parser.c (cp_convert_range_for): Set the type of __end separately.
        (cp_parser_perform_range_for_lookup): Allow different begin/end
        types if they are comparable.

2016-03-12  Patrick Palka  <ppalka@gcc.gnu.org>

        PR c++/70106
        * semantics.c (force_paren_expr): Just build a PAREN_EXPR when
        processing_template_decl and EXPR is a SCOPE_REF.

2016-03-10  Patrick Palka  <ppalka@gcc.gnu.org>
            Jakub Jelinek  <jakub@redhat.com>

        PR c++/70001
        * constexpr.c (cxx_eval_vec_init_1): For pre_init case, reuse
        return value from cxx_eval_constant_expression from earlier
        elements if it is valid constant initializer requiring no
        relocations.

2016-03-10  Marek Polacek  <polacek@redhat.com>

        PR c++/70153
        * cp-gimplify.c (cp_fold): Handle UNARY_PLUS_EXPR.

2016-03-09  Cesar Philippidis  <cesar@codesourcery.com>

        * parser.c (cp_parser_oacc_loop): Update cclauses and clauses
        when calling c_finish_omp_clauses.

2016-03-08  Jason Merrill  <jason@redhat.com>

        * parser.c (cp_parser_diagnose_invalid_type_name): Give helpful
        diagnostic for use of "concept".
        (cp_parser_requires_clause_opt): And "requires".
        (cp_parser_type_parameter, cp_parser_late_return_type_opt)
        (cp_parser_explicit_template_declaration): Adjust.
        * Make-lang.in (check-c++-all): Add "concepts" to std list.

        P0036R0: Unary Folds and Empty Parameter Packs
        * pt.c (expand_empty_fold): Remove special cases for *,+,&,|.

2016-03-08  Jakub Jelinek  <jakub@redhat.com>

        PR c++/70135
        * constexpr.c (cxx_eval_loop_expr): Forget saved values of SAVE_EXPRs
        even after the last iteration of the loop.

        * decl.c (duplicate_decls): Fix spelling - becuase -> because.

2016-03-07  Patrick Palka  <ppalka@gcc.gnu.org>

        PR c++/66786
        * pt.c (get_template_info): Handle PARM_DECL.
        (template_class_depth): Check DECL_P instead of
        VAR_OR_FUNCTION_DECL_P.

2016-03-05  Jason Merrill  <jason@redhat.com>

        PR c++/67364
        * constexpr.c (cxx_eval_store_expression): Replace
        CONSTRUCTOR_ELTS in nested CONSTRUCTORs, too.

2016-03-05  Patrick Palka  <ppalka@gcc.gnu.org>

        PR c++/66786
        * pt.c (template_class_depth): Given a lambda type, iterate
        into its LAMBDA_TYPE_EXTRA_SCOPE field instead of its
        TYPE_CONTEXT.  Given a VAR_DECL, iterate into its
        CP_DECL_CONTEXT.

2016-03-04  Jason Merrill  <jason@redhat.com>

        PR c++/69203
        * cp-tree.h (COND_EXPR_IS_VEC_DELETE): New.
        * init.c (build_vec_delete_1): Set it.
        * constexpr.c (potential_constant_expression_1) [COND_EXPR]: Check it.

2016-03-04  Jakub Jelinek  <jakub@redhat.com>

        * decl.c (start_preparsed_function): Don't emit start clobber at the
        start of constructor clones.

        PR c++/70035
        * cp-tree.h (cp_ubsan_maybe_initialize_vtbl_ptrs): New prototype.
        * decl.c (start_preparsed_function): Call
        cp_ubsan_maybe_initialize_vtbl_ptrs if needed.
        * cp-ubsan.c (cp_ubsan_dfs_initialize_vtbl_ptrs,
        cp_ubsan_maybe_initialize_vtbl_ptrs): New functions.

2016-03-04  Jason Merrill  <jason@redhat.com>

        PR c++/67364
        * constexpr.c (cxx_eval_component_reference): Further tweak.

        * constexpr.c (struct constexpr_ctx): Add save_exprs field.
        (cxx_eval_loop_expr): Discard SAVE_EXPR values before looping.
        (cxx_eval_constant_expression) [SAVE_EXPR]: Add it to the set.
        (cxx_eval_outermost_constant_expr, is_sub_constant_expr): Initialize.

        PR c++/70067
        * tree.c (strip_typedefs): Handle TYPENAME_TYPE lookup finding the
        same type.

2016-03-03  Jason Merrill  <jason@redhat.com>

        * method.c (synthesized_method_walk): operator= can also be constexpr.

        * pt.c (tsubst_copy_and_build) [LAMBDA_EXPR]: Get
        LAMBDA_EXPR_RETURN_TYPE from the instantiated closure.

        PR c++/67164
        * pt.c (copy_template_args): New.
        (tsubst_pack_expansion): Use it.

        * call.c (build_aggr_conv): Use get_nsdmi.

        PR c++/51406
        * typeck.c (build_static_cast_1): Avoid folding back to lvalue.

        PR c++/67364
        * constexpr.c (cxx_eval_component_reference): Just return an empty
        CONSTRUCTOR for an empty class.

2016-03-01  Jason Merrill  <jason@redhat.com>

        PR c++/70036
        * parser.c (cp_parser_requires_clause): Call
        check_for_bare_parameter_packs.

        PR c++/51489
        * constexpr.c (cxx_eval_binary_expression): Don't VERIFY_CONSTANT
        the operands.

        PR c++/69995
        * constexpr.c (cxx_eval_call_expression): Unshare arg.
        (cxx_eval_constant_expression) [DECL_EXPR]: Unshare init.
        [TARGET_EXPR]: Unshare init.

2016-03-01  Patrick Palka  <ppalka@gcc.gnu.org>

        PR c++/68948
        PR c++/69961
        * pt.c (tsubst_baselink): Reinstate the check for an invalid
        constructor call.

2016-02-28  Jason Merrill  <jason@redhat.com>

        PR c++/69995
        * constexpr.c (cxx_eval_store_expression): Unshare init.

2016-02-26  Jason Merrill  <jason@redhat.com>

        PR c++/69958
        * pt.c (make_argument_pack): New.
        (tsubst_copy) [SIZEOF_EXPR]: Handle partial expansion.
        (tsubst_copy_and_build): Likewise.

2016-02-25  Jason Merrill  <jason@redhat.com>

        PR c++/69889
        * cp-tree.h (AGGR_INIT_FROM_THUNK_P): New.
        * tree.c (build_aggr_init_expr): Set it.
        * semantics.c (simplify_aggr_init_expr): Check it.
        * cp-gimplify.c (cp_genericize_r): Don't walk into
        a call/aggr_init from a thunk.

        PR c++/69842
        * method.c (forward_parm): Handle parameter packs.
        * lambda.c (maybe_add_lambda_conv_op): Use it for them.

        PR c++/67364
        * constexpr.c (cxx_eval_component_reference): Don't complain about
        unevaluated empty classes.

        PR c++/68049
        * tree.c (strip_typedefs): Use DECL_ORIGINAL_TYPE.

2016-02-25  Patrick Palka  <ppalka@gcc.gnu.org>

        PR c++/69736
        * cp-tree.h (REF_PARENTHESIZED_P): Adjust documentation.
        (maybe_undo_parenthesized_ref): Declare.
        * semantics.c (maybe_undo_parenthesized_ref): Split out from
        check_return_expr.
        (finish_call_expr): Use it.
        * typeck.c (check_return_expr): Use it.
        * pt.c (tsubst_copy_and_build) [INDIRECT_REF]: Retain the
        REF_PARENTHESIZED_P flag.

2016-02-24  Jakub Jelinek  <jakub@redhat.com>

        PR c++/69922
        * class.c (build_base_path): Set TREE_NO_WARNING on the null_test.
        Avoid folding it.
        * init.c (build_vec_delete_1, build_delete): Don't fold the non-NULL
        tests.
        * cp-gimplify.c (cp_fold): For TREE_NO_WARNING comparisons with NULL,
        unless they are folded into INTEGER_CST, error_mark_node or some
        comparison with NULL, avoid folding them and use either the original
        comparison or non-folded comparison of folded arguments.
        * cp-ubsan.c (cp_ubsan_instrument_vptr): Set TREE_NO_WARNING on the
        comparison, don't fold the comparison right away.

2016-02-24  Jason Merrill  <jason@redhat.com>

        PR c++/69323
        * friend.c (make_friend_class): Likewise.
        * decl.c (lookup_and_check_tag): Diagnose invalid dependent friend.

2016-02-24  Jason Merrill  <jason@redhat.com>

        PR c++/69323
        * pt.c (instantiate_class_template_1): Set
        processing_template_decl before substituting friend_type.

016-02-24  Martin Sebor  <msebor@redhat.com>

        PR c++/69912
        * tree.c (build_ctor_subob_ref): Compare types' main variants
        instead of the types as they are.

2016-02-24  Jason Merrill  <jason@redhat.com>

        * decl.c (start_preparsed_function): Condition ctor clobber on
        flag_lifetime_dse > 1.

        * cp-gimplify.c (cp_fold): Don't fold constexpr calls if -fno-inline.

2016-02-19  Jason Merrill  <jason@redhat.com>

        PR c++/69743
        * call.c (remaining_arguments): No longer static.
        * cp-tree.h: Declare it.
        * pt.c (more_specialized_fn): Use it.

2016-02-19  Jakub Jelinek  <jakub@redhat.com>
            Bernd Edlinger  <bernd.edlinger@hotmail.de>

        * Make-lang.in: Invoke gperf with -L C++.
        * cfns.gperf: Remove prototypes for hash and libc_name_p
        inlines.
        * cfns.h: Regenerated.
        * except.c (nothrow_libfn_p): Adjust.

2016-02-19  Jakub Jelinek  <jakub@redhat.com>

        PR c++/69850
        * rtti.c (ifnonnull): Set TREE_NO_WARNING on the condition, use
        NE_EXPR instead of EQ_EXPR and swap last two arguments on COND_EXPR.

2016-02-19  Patrick Palka  <ppalka@gcc.gnu.org>

        PR c++/68948
        * pt.c (tsubst_baselink): Don't diagnose an invalid constructor
        call here.
        * semantics.c (finish_call_expr): Don't assume a constructor
        call is dependent if only the "this" pointer is dependent.  When
        building a constructor call, always use a dummy object.

2016-02-19  Jakub Jelinek  <jakub@redhat.com>

        PR c++/69850
        * init.c (build_vec_delete_1): Set TREE_NO_WARNING on the NE_EXPR
        condition.
        * cp-gimplify.c (cp_fold): Propagate TREE_NO_WARNING from binary
        operators if folding preserved the binop, just with different
        arguments.

        PR c++/67767
        * parser.c (cp_parser_std_attribute_spec_seq): Don't assume
        attr_spec is always single element chain, chain all the attributes
        properly together in the right order.

2016-02-18  Jason Merrill  <jason@redhat.com>

        * mangle.c (maybe_check_abi_tags): Add for_decl parm.  Call
        mangle_decl.
        (mangle_decl): Call maybe_check_abi_tags for function scope.
        (mangle_guard_variable): Call maybe_check_abi_tags here.
        (write_guarded_var_name): Not here.

2016-02-17  Jason Merrill  <jason@redhat.com>

        PR c++/65985
        * constexpr.c (build_constexpr_constructor_member_initializers):
        Handle an additional STATEMENT_LIST.

        PR c++/68585
        * constexpr.c (cxx_eval_bare_aggregate): Fix 'changed' detection.

        PR c++/68679
        * decl2.c (reset_type_linkage_2): Look through member templates.

2016-02-17  Jakub Jelinek  <jakub@redhat.com>

        PR c++/69850
        * init.c (build_delete): Set TREE_NO_WARNING on ifexp.

2016-02-17  Jason Merrill  <jason@redhat.com>

        PR c++/69842
        * method.c (forward_parm): Split out from...
        (add_one_base_init): ...here.
        * lambda.c (maybe_add_lambda_conv_op): Use it.

2016-02-16  Jason Merrill  <jason@redhat.com>

        PR c++/10200
        PR c++/69753
        * call.c, cp-tree.h, name-lookup.c, pt.c, search.c, semantics.c,
        tree.c, typeck2.c: Revert earlier changes.
        * parser.c (cp_parser_lookup_name): Ignore namespace-scope
        non-type templates after -> or .

2016-02-16  Jakub Jelinek  <jakub@redhat.com>

        PR c/69835
        * typeck.c (cp_build_binary_op): Revert 2015-09-09 change.

2016-02-16  Jason Merrill  <jason@redhat.com>

        PR c++/69657
        * name-lookup.c (lookup_qualified_name): Add find_hidden parm.
        (set_decl_namespace): Pass it.  Complain about finding a hidden friend.
        * name-lookup.h: Adjust.

2016-02-16  James Norris  <jnorris@codesourcery.com>

        * parser.c (cp_parser_oacc_data_clause_deviceptr): Remove checking.
        * semantics.c (finish_omp_clauses): Add deviceptr checking.

2016-02-15  Jakub Jelinek  <jakub@redhat.com>

        PR c++/69658
        * init.c (expand_default_init): Only call reshape_init
        in the direct-initialization from an initializer list case.

2016-02-15  Jason Merrill  <jason@redhat.com>

        PR c++/69753
        * semantics.c (finish_call_expr): Implicit 'this' does not make
        the call dependent.
        * search.c (any_dependent_bases_p): Split out...
        * name-lookup.c (do_class_using_decl): ...from here.
        * call.c (build_new_method_call_1): Don't complain about missing object
        if there are dependent bases.  Tweak error.
        * tree.c (non_static_member_function_p): Remove.
        * pt.c (type_dependent_expression_p): A member template of a
        dependent type is dependent.
        * cp-tree.h: Adjust.

        PR c++/68890
        * constexpr.c (verify_ctor_sanity): Remove CONSTRUCTOR_NELTS check.

2016-02-12  Patrick Palka  <ppalka@gcc.gnu.org>

        PR c++/69098
        * pt.c (lookup_and_finish_template_variable): New function,
        extracted from ...
        (tsubst_copy_and_build) [TEMPLATE_ID_EXPR]: ... here.  Use it.
        (tsubst_qualified_id): Consider that EXPR might be a variable
        template.
        * typeck.c (check_template_keyword): Don't emit an error
        if DECL is a variable template.

2016-02-12  Jakub Jelinek  <jakub@redhat.com>

        * error.c: Spelling fixes - behaviour -> behavior and
        neighbour -> neighbor.
        * decl.c: Likewise.
        * typeck.c (cp_build_binary_op): Fix up behavior spelling in
        diagnostics.
        * init.c (build_delete): Likewise.

2016-02-11  Jakub Jelinek  <jakub@redhat.com>

        PR c/69768
        * typeck.c (cp_build_binary_op): cp_fully_fold integer_zerop
        arguments for -Waddress warning.  Fix up formatting.

2016-02-11  Paolo Carlini  <paolo.carlini@oracle.com>

        PR c++/68726
        * pt.c (lookup_template_class_1): Check tsubst return value for
        error_mark_node.

2016-02-10  Jason Merrill  <jason@redhat.com>

        PR c++/68926
        * pt.c (resolve_nondeduced_context): Add complain parm.
        (do_auto_deduction): Pass it.
        * cvt.c (convert_to_void): Likewise.
        * decl.c (cp_finish_decl): Likewise.
        * init.c (build_new): Likewise.
        * rtti.c (get_tinfo_decl_dynamic): Likewise.
        * semantics.c (finish_decltype_type): Likewise.
        * typeck.c (decay_conversion): Likewise.
        * cp-tree.h: Adjust declaration.
        * call.c (standard_conversion): Add complain parm, pass it along.
        (implicit_conversion): Pass it.

        PR c++/69657
        * name-lookup.c (ambiguous_decl): Call remove_hidden_names.
        (lookup_name_real_1): Likewise.
        (remove_hidden_names): Handle non-functions too.

        PR c++/10200
        * parser.c (cp_parser_lookup_name): When looking for a template
        after . or ->, only consider class templates.
        (cp_parser_postfix_dot_deref_expression): Handle the current
        instantiation.  Remember a dependent object expression.
        * typeck2.c (build_x_arrow): Handle the current instantiation.

        * ptree.c (debug_tree): Implement for cp_expr.

2016-02-08  Patrick Palka  <ppalka@gcc.gnu.org>

        PR c++/69139
        * parser.c (cp_parser_simple_type_specifier): Make the check
        for disambiguating between an 'auto' placeholder and an implicit
        template parameter more robust.

2016-02-08  Patrick Palka  <ppalka@gcc.gnu.org>

        PR c++/69283
        PR c++/67835
        * decl2.c (mark_used): When given a TEMPLATE_DECL, return after
        setting its TREE_USED flag.

2016-02-08  Jason Merrill  <jason@redhat.com>

        PR c++/69657
        * name-lookup.c (do_nonmember_using_decl): Leave anticipated
        built-ins alone.

2016-02-08  Jakub Jelinek  <jakub@redhat.com>

        PR c++/59627
        * parser.c (cp_parser_omp_declare_reduction): Set assembler name
        of the DECL_OMP_DECLARE_REDUCTION_P decls.

2016-02-08  Marek Polacek  <polacek@redhat.com>

        PR c++/69688
        * constexpr.c (clear_cv_and_fold_caches): Renamed from clear_cv_cache.
        Call clear_fold_cache.
        * cp-tree.h: Adjust declaration.
        * decl.c (finish_enum_value_list): Call clear_cv_and_fold_caches
        rather than clear_cv_cache and clear_fold_cache.
        * typeck2.c (store_init_value): Call clear_cv_and_fold_caches.

2016-02-08  Jason Merrill  <jason@redhat.com>

        * cp-tree.h (CONV_FOLD, CONV_BACKEND_CONVERT): New.
        * cvt.c (convert): Pass CONV_BACKEND_CONVERT.
        (ocp_convert): Use *_maybe_fold.
        (cp_convert_to_pointer): Add dofold parameter.
        * cp-gimplify.c (cp_fold) [CONVERT_EXPR]: Call convert.

2016-02-05  Martin Sebor  <msebor@redhat.com>

        PR c++/69662
        * init.c (find_field_init): New function.
        (warn_placement_new_too_small): Call it.  Handle one-element arrays
        at ends of structures special.

2016-02-05  Jason Merrill  <jason@redhat.com>

        PR c++/68948
        * semantics.c (finish_expr_stmt): If expr is error_mark_node,
        make sure we've seen_error().

2016-02-05  Patrick Palka  <ppalka@gcc.gnu.org>

        PR c++/68948
        * pt.c (tsubst_baselink): Diagnose an invalid constructor call
        if lookup_fnfields returns NULL_TREE and the name being looked
        up has the form A::A.

2016-02-04  Patrick Palka  <ppalka@gcc.gnu.org>

        * constexpr.c (cxx_eval_binary_expression): Fold equality
        comparisons involving PTRMEM_CSTs.

2016-02-04  Jakub Jelinek  <jakub@redhat.com>

        * class.c (find_flexarrays): Don't declare dom variable.
        (diagnose_flexarray): Likewise.

2016-02-02  Martain Sebor  <msebor@redhat.com>

        PR c++/69251
        PR c++/69253
        PR c++/69290
        PR c++/69277
        PR c++/69349
        * class.c (walk_subobject_offsets): Avoid testing the upper bound
        of a flexible array member for equality to null.
        (find_flexarrays): Remove spurious whitespace introduced in r231665.
        (diagnose_flexarrays): Avoid checking the upper bound of arrays.
        (check_flexarrays): Same.
        * decl.c (compute_array_index_type): Avoid special case for flexible
        array members.
        (grokdeclarator): Avoid calling compute_array_index_type for flexible
        array members.
        * error.c (dump_type_suffix): Revert changes introduced in r231665
        and rendered unnecessary by the changes above.
        * pt.c (tsubst):  Same.
        * tree.c (build_ctor_subob_ref): Handle flexible array members.
        * typeck2.c (digest_init_r): Revert changes introduced in r231665.
        (process_init_constructor_array): Same.
        (process_init_constructor_record): Same.

2016-02-03  Patrick Palka  <ppalka@gcc.gnu.org>

        PR c++/69056
        * pt.c (try_one_overload): Handle comparing argument packs so
        that there is no conflict if we deduced more arguments of an
        argument pack than were explicitly specified.

2016-01-31  Jakub Jelinek  <jakub@redhat.com>
            Jason Merrill  <jason@redhat.com>

        PR c++/68763
        * tree.c (strip_typedefs) [FUNCTION_TYPE]: Avoid building a new
        function type if nothing is changing.

2016-01-31  Jason Merrill  <jason@redhat.com>

        PR c++/69009
        * pt.c (partial_specialization_p, impartial_args): New.
        (instantiate_decl): Call impartial_args.

        * mangle.c (maybe_check_abi_tags): New.
        (write_guarded_var_name): Call it.
        (mangle_ref_init_variable): Call check_abi_tags.

        * pt.c (lookup_template_class_1): Don't share TYPE_ATTRIBUTES
        between template and instantiation.

2016-01-29  Jakub Jelinek  <jakub@redhat.com>

        PR debug/66869
        * decl.c (wrapup_globals_for_namespace): Warn about unused static
        function declarations.

2016-01-29  Marek Polacek  <polacek@redhat.com>

        PR c++/69509
        PR c++/69516
        * constexpr.c (cxx_eval_array_reference): Give the "array subscript
        out of bound" error earlier.
        * init.c (build_vec_init): Change NE_EXPR into GT_EXPR.  Update the
        commentary.

2016-01-29  Patrick Palka  <ppalka@gcc.gnu.org>

        * name-lookup.c (begin_scope): After reusing a cp_binding_level
        structure, update free_binding_level before the structure's
        level_chain field gets cleared, not after.

2016-01-28  Jason Merrill  <jason@redhat.com>

        PR c++/67407
        * search.c (dfs_walk_once, dfs_walk_once_r)
        (dfs_walk_once_accessible_r, dfs_walk_once_accessible): Use
        hash_set instead of BINFO_MARKED.
        (dfs_unmark_r): Remove.

2016-01-28  Patrick Palka  <ppalka@gcc.gnu.org>

        PR c++/24208
        * parser.c (LEXER_DEBUGGING_ENABLED_P): New macro.
        (cp_lexer_debugging_p): Use it.
        (cp_lexer_start_debugging): Likewise.
        (cp_lexer_stop_debugging): Likewise.

2016-01-27  Marek Polacek  <polacek@redhat.com>

        PR c/68062
        * typeck.c (cp_build_binary_op): Promote operand to unsigned, if
        needed.  Add -Wsign-compare warning.

2016-01-27  Ryan Burn  <contact@rnburn.com>

        PR cilkplus/69267
        * cp-gimplify.c (cilk_cp_gimplify_call_params_in_spawned_fn): Removed
        superfluous post_p argument in call to
        cilk_gimplify_call_params_in_spawned_fn.

2016-01-27  Marek Polacek  <polacek@redhat.com>

        PR c++/69379
        * constexpr.c (cxx_eval_constant_expression): Handle PTRMEM_CSTs
        wrapped in NOP_EXPRs.

2016-01-27  Martin Sebor  <msebor@redhat.com>

        PR c++/69317
        * mangle.c (mangle_decl): Reference the correct (saved) version
        of the ABI in -Wabi diagnostics.

2016-01-27  Marek Polacek  <polacek@redhat.com>

        PR c++/69496
        * constexpr.c (cxx_eval_array_reference): Evaluate the number of
        elements of the array.

2016-01-26  Jason Merrill  <jason@redhat.com>

        PR c++/68949
        * constexpr.c (register_constexpr_fundef): Keep the un-massaged body.
        (cxx_eval_call_expression): Don't look through clones.
        * optimize.c (maybe_clone_body): Clear DECL_SAVED_TREE of the alias.
        * semantics.c (expand_or_defer_fn_1): Keep DECL_SAVED_TREE of
        maybe-in-charge *tor.

2016-01-26  Jason Merrill  <jason@redhat.com>

        PR c++/68782
        * constexpr.c (cxx_eval_bare_aggregate): Update TREE_CONSTANT
        and TREE_SIDE_EFFECTS.
        (cxx_eval_constant_expression) [CONSTRUCTOR]: Call
        verify_constructor_flags.

2016-01-26  Jakub Jelinek  <jakub@redhat.com>

        PR c++/68357
        * cp-gimplify.c (cp_fold): If some operand folds to error_mark_node,
        return error_mark_node instead of building trees with error_mark_node
        operands.

2016-01-26  David Malcolm  <dmalcolm@redhat.com>

        PR other/69006
        * error.c (print_instantiation_partial_context_line): Add missing
        newlines from output for the t == NULL case.
        (print_instantiation_partial_context): Remove call to pp_newline.

2016-01-24  Patrick Palka  <ppalka@gcc.gnu.org>

        Revert:
        2016-01-18  Patrick Palka  <ppalka@gcc.gnu.org>

        PR c++/11858
        PR c++/24663
        PR c++/24664
        * decl.c (grokdeclarator): Don't decay array parameter type to
        a pointer type if it's dependent.
        (grokparms): Invoke strip_top_quals instead of directly invoking
        cp_build_qualified_type.
        * pt.c (decay_dependent_array_parm_type): New static function.
        (type_unification_real): Call decay_dependent_array_parm_type
        to decay a dependent array parameter type to its corresponding
        pointer type before unification.
        (more_specialized_fn): Likewise.
        (get_bindings): Likewise.
        * tree.c (cp_build_qualified_type): Trivial typofix in
        documentation.

2016-01-23  Martin Sebor  <msebor@redhat.com>

        PR c++/58109
        PR c++/69022
        * decl2.c (is_late_template_attribute): Handle dependent argument
        to attribute align and attribute vector_size.

2016-01-21  Jason Merrill  <jason@redhat.com>

        PR c++/69392
        * lambda.c (lambda_capture_field_type): Handle 'this' specially
        for init-capture, too.

        PR c++/65687
        * decl.c (type_is_deprecated): Don't look into a typedef.

        PR c++/40751
        PR c++/64987
        * decl.c (copy_type_enum): Respect TYPE_USER_ALIGN.

        PR c++/43407
        * decl.c (start_enum): Add attributes parameter.
        * parser.c (cp_parser_enum_specifier): Pass it.
        * pt.c (lookup_template_class_1): Pass it.
        * cp-tree.h: Adjust.

2016-01-19  Jason Merrill  <jason@redhat.com>

        PR c++/59759
        * pt.c (convert_template_argument): Handle VAR_DECL properly.

2016-01-19  Marek Polacek  <polacek@redhat.com>

        PR c++/68586
        * constexpr.c (clear_cv_cache): New.
        * cp-gimplify.c (clear_fold_cache): New.
        * cp-tree.h (clear_cv_cache, clear_fold_cache): Declare.
        * decl.c (finish_enum_value_list): Call them.

        PR c++/68965
        * pt.c (tsubst_copy): Mark elements in expanded vector as used.

2016-01-18  Patrick Palka  <ppalka@gcc.gnu.org>

        PR c++/11858
        PR c++/24663
        PR c++/24664
        * decl.c (grokdeclarator): Don't decay array parameter type to
        a pointer type if it's dependent.
        (grokparms): Invoke strip_top_quals instead of directly invoking
        cp_build_qualified_type.
        * pt.c (decay_dependent_array_parm_type): New static function.
        (type_unification_real): Call decay_dependent_array_parm_type
        to decay a dependent array parameter type to its corresponding
        pointer type before unification.
        (more_specialized_fn): Likewise.
        (get_bindings): Likewise.
        * tree.c (cp_build_qualified_type): Trivial typofix in
        documentation.

2016-01-18  Jason Merrill  <jason@redhat.com>

        * cp-gimplify.c (cp_fold) [CONSTRUCTOR]: Don't clobber the input.

        * cp-gimplify.c (cp_fold): Remove unnecessary special cases.

        PR c++/68767
        * cp-gimplify.c (cp_fold) [COND_EXPR]: Simplify.  Do fold COND_EXPR.
        (contains_label_1, contains_label_p): Remove.

2016-01-16  Patrick Palka  <ppalka@gcc.gnu.org>

        PR c++/69091
        * pt.c (type_dependent_expression_p): For a function template
        specialization, a type is dependent iff any of its template
        arguments are.

2016-01-16  Patrick Palka  <ppalka@gcc.gnu.org>

        * cp-array-notation.c (cp_expand_cond_array_notations): Return
        error_mark_node only if find_rank failed, not if it was
        successful.

2016-01-16  Patrick Palka  <ppalka@gcc.gnu.org>

        PR c++/68936
        * tree.c (build_min_non_dep_call_vec): Don't retain the
        KOENIG_LOOKUP_P flag of the non-dependent expression that's
        been built.
        (build_min_non_dep_op_overload): Instead, do it here.

2016-01-15  Jakub Jelinek  <jakub@redhat.com>

        PR bootstrap/68271
        * parser.h (cp_token): Remove pragma_kind field.  Add comment
        with number of unused bits.
        * parser.c (eof_token): Remove pragma_kind field initializer.
        (cp_lexer_get_preprocessor_token): Don't set pragma_kind
        field, don't clear CPP_PRAGMA u.value.
        (cp_parser_pragma_kind): New function.
        (cp_parser_omp_sections_scope, cp_parser_oacc_kernels_parallel,
        cp_parser_omp_construct, cp_parser_initial_pragma,
        cp_parser_pragma): Use cp_parser_pragma_kind instead of accessing
        pragma_kind field.

2016-01-15  Jason Merrill  <jason@redhat.com>

        PR c++/68847
        * call.c (build_cxx_call): Use fold_non_dependent_expr.

        * typeck2.c (cxx_incomplete_type_diagnostic): Use the location of
        value.

        PR c++/69257
        * typeck.c (decay_conversion): Don't call mark_rvalue_use for
        array/function-to-pointer conversion.  Call
        complete_type_or_maybe_complain for lvalue-to-rvalue conversion.
        * call.c (convert_like_real): Print call context if
        decay_conversion errors.

2016-01-14  Tom de Vries  <tom@codesourcery.com>

        PR tree-optimization/68773
        * parser.c (cp_parser_oacc_declare, cp_parser_omp_declare_target): Don't
        set force_output.

2016-01-14  Jason Merrill  <jason@redhat.com>

        PR c++/69261
        * constexpr.c (find_array_ctor_elt): Handle splitting RANGE_EXPR.

2016-01-12  Marek Polacek  <polacek@redhat.com>

        PR c++/68979
        * constexpr.c (cxx_eval_check_shift_p): Use permerror rather than
        error_at and adjust the return value.

2016-01-12  Jakub Jelinek  <jakub@redhat.com>

        PR objc++/68511
        PR c++/69213
        * cp-gimplify.c (cp_gimplify_expr) <case INIT_EXPR>: Don't return
        GS_ERROR whenever seen_error (), only if *expr_p contains
        cilk spawn stmt, but cilk_detect_spawn_and_unwrap failed.

        PR c++/66808
        PR c++/69000
        * pt.c (tsubst_decl): If not local_p, clear DECL_TEMPLATE_INFO.

2016-01-11  Jason Merrill  <jason@redhat.com>

        PR c++/69131
        * method.c (walk_field_subobs): Add dtor_from_ctor parm.
        (process_subob_fn): Likewise.  Don't consider triviality if true.
        (synthesize_method_walk): Pass it.

2016-01-11  David Malcolm  <dmalcolm@redhat.com>

        PR c++/68795
        * parser.c (cp_parser_postfix_expression): Initialize
        close_paren_loc to UNKNOWN_LOCATION; only use it if
        it has been written to by
        cp_parser_parenthesized_expression_list.
        (cp_parser_parenthesized_expression_list): Document the behavior
        with respect to the CLOSE_PAREN_LOC param.

2016-01-11  Jakub Jelinek  <jakub@redhat.com>

        PR c++/69211
        * cp-gimplify.c (cp_fold): If COMPOUND_EXPR or MODIFY_EXPR
        folded operands have side-effects, but folding changed any of them,
        build a new tree with the folded operands instead of returning the
        unfolded tree.

2016-01-09  Marek Polacek  <polacek@redhat.com>

        PR c++/69113
        * decl2.c (comdat_linkage): Only set DECL_COMDAT if TREE_PUBLIC is set.

2016-01-09  Jakub Jelinek  <jakub@redhat.com>

        PR c++/69164
        * class.c (layout_class_type): Use copy_node to copy FIELD_DECLs.

2016-01-08  Jason Merrill  <jason@redhat.com>

        PR c++/69158
        * constexpr.c (cxx_fold_indirect_ref): Handle array type differing
        in completion.

2016-01-08  Marek Polacek  <polacek@redhat.com>

        PR c++/68449
        * constexpr.c (cxx_eval_constant_expression): Handle NULL initializer.

2016-01-08  Jason Merrill  <jason@redhat.com>

        * constexpr.c (cxx_eval_call_expression): Remove convert_to_void
        workaround.

        PR c++/68983
        PR c++/67557
        * cvt.c (convert_to_void): Don't strip a TARGET_EXPR of
        TREE_ADDRESSABLE type.

        PR c++/68983
        PR c++/67557
        * call.c (unsafe_copy_elision_p): Look through COMPOUND_EXPR.

2016-01-05  Nathan Sidwell  <nathan@acm.org>

        PR c++/58583
        * pt.c (build_non_dependent_expr): Don't try a checking fold when
        parsing an nsdmi.

2016-01-04  Jakub Jelinek  <jakub@redhat.com>

        Update copyright years.
\f
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