[gcc.git] / gcc / ada / ChangeLog

2019-07-04  Yannick Moy  <moy@adacore.com>

        * sem_spark.adb (Check_Package_Spec, Check_Package_Body): Only
        analyze parts of the code marked in SPARK.

2019-07-04  Hristian Kirtchev  <kirtchev@adacore.com>

        * erroutc.adb, exp_aggr.adb, inline.adb, opt.adb, sem_ch3.adb:
        Minor reformatting.

2019-07-04  Yannick Moy  <moy@adacore.com>

        * sem_spark.adb (Explanation, Get_Expl): New functions to get
        the explanation for a permission mismatch.
        (Perm_Error, Perm_Mismatch, Perm_Error_Loop_Exit): Take
        explanation into account for issuing a more precise error
        message.
        (Set_Perm_Prefixes, Set_Perm_Extensions,
        Set_Perm_Extensions_Move): Pass suitable argument for the
        explanation node.

2019-07-04  Arnaud Charlet  <charlet@adacore.com>

        * exp_aggr.adb (In_Place_Assign_OK): Moved to top level and add
        support for record aggregates.
        (Component_Check): Use Is_CCG_Supported_Aggregate instead of a
        similar local predicate.
        (Convert_To_Assignments): Take advantage of In_Place_Assign_OK
        predicate when possible.
        (Is_CCG_Supported_Aggregate): Return False for records with
        representation clauses and fix the logic for dealing with nested
        aggregates.

2019-07-04  Piotr Trojanek  <trojanek@adacore.com>

        * opt.adb (Set_Config_Switches): Keep assertions policy as
        enabled when analysing internal units in GNATprove mode.

2019-07-04  Arnaud Charlet  <charlet@adacore.com>

        * exp_ch4.adb (Expand_Short_Circuit_Operator): Strip
        N_Variable_Reference_Marker when checking for the presence of
        actions.

2019-07-04  Arnaud Charlet  <charlet@adacore.com>

        * exp_aggr.adb (Check_Component): Take into account type
        conversions.

2019-07-04  Dmitriy Anisimkov  <anisimko@adacore.com>

        * doc/gnat_ugn/platform_specific_information.rst: Document
        Windows socket timeout particularity.
        * gnat_ugn.texi: Regenerate.
        * gsocket.h: Include versionhelpers.h.
        * socket.c (__gnat_minus_500ms): New function.
        * libgnat/g-sothco.ads (Minus_500ms_Windows_Timeout): New
        imported function.
        * libgnat/g-socket.adb (Set_Socket_Option): Refactor to remove
        500ms from the requested timeout only on old Windows version.

2019-07-04  Thomas Quinot  <quinot@adacore.com>

        * get_scos.adb: Remove bogus, dead code.

2019-07-04  Ed Schonberg  <schonberg@adacore.com>

        * sem_dim.adb (Analyze_Dimension_Array_Aggregate): If the
        component is an entity name, its dimensions are those of its
        type.

2019-07-03  Bob Duff  <duff@adacore.com>

        * doc/gnat_ugn/gnat_utility_programs.rst: Document new flags in
        GNATpp.

2019-07-03  Hristian Kirtchev  <kirtchev@adacore.com>

        * binde.adb: Remove with clause for System.OS_Lib.
        (Force_Elab_Order): Refactor the majority of the code in Butil.
        Use the new forced units iterator to obtain unit names.
        * bindo-builders.adb: Add with and use clauses for Binderr,
        Butil, Opt, Output, Types, GNAT, and GNAT.Dynamic_HTables.  Add
        a hash table which maps units to line number in the forced
        elaboration order file.
        (Add_Unit): New routine.
        (Build_Library_Graph): Create forced edges between pairs of
        units listed in the forced elaboration order file.
        (Create_Forced_Edge, Create_Forced_Edges, Destroy_Line_Number,
        Duplicate_Unit_Error, Hash_Unit, Internal_Unit_Info,
        Is_Duplicate_Unit, Missing_Unit_Info): New routines.
        * bindo-graphs.adb (Is_Internal_Unit, Is_Predefined_Unit):
        Refactor some of the behavior to Bindo-Units.
        * bindo-graphs.ads: Enable the enumeration literal for forced
        edges.
        * bindo-units.adb, bindo-units.ads (Is_Internal_Unit,
        Is_Predefined_Unit): New routines.
        * butil.adb: Add with and use clauses for Opt, GNAT, and
        System.OS_Lib.  Add with clause for Unchecked_Deallocation.
        (Has_Next, Iterate_Forced_Units, Next, Parse_Next_Unit_Name,
        Read_Forced_Elab_Order_File): New routines.
        * butil.ads: Add with and use clauses for Types.  Add new
        iterator over the units listed in the forced elaboration order
        file.
        (Has_Next, Iterate_Forced_Units, Next): New routine.
        * namet.adb, namet.ads (Present): New routine.

2019-07-03  Bob Duff  <duff@adacore.com>

        * sem_ch3.adb (Access_Definition): The code was creating a
        master in the case where the designated type is a class-wide
        interface type. Create a master in the noninterface case as
        well. That is, create a master for all limited class-wide types.

2019-07-03  Yannick Moy  <moy@adacore.com>

        * erroutc.adb (Sloc_In_Range): New function to determine whether
        the range of a pragma Warnings covers a location, taking
        instantiations into account.

2019-07-03  Johannes Kanig  <kanig@adacore.com>

        * osint.ads, osint.adb (Get_First_Main_File_Name): New routine
        to access the first file provided on the command line.

2019-07-03  Ed Schonberg  <schonberg@adacore.com>

        * inline.adb (Process_Formals_In_Aspects): New procedure within
        Expand_Inlined_Call, to perform a replacement of references to
        formals that appear in aspect specifications within the body
        being inlined.

2019-07-03  Justin Squirek  <squirek@adacore.com>

        * sem_ch8.adb (Analyze_Object_Renaming): Add call to search for
        the appropriate actual subtype of the object renaming being
        analyzed.
        (Check_Constrained_Object): Minor cleanup.

2019-07-03  Yannick Moy  <moy@adacore.com>

        * sem_spark.adb (Get_Observed_Or_Borrowed_Expr): New function to
        return go through traversal function call.
        (Check_Type): Consistently use underlying type.
        (Get_Perm): Adapt for case of elaboration code where variables
        are not declared in the environment. Remove incorrect handling
        of borrow and observe.

2019-07-03  Hristian Kirtchev  <kirtchev@adacore.com>

        * inline.adb (Build_Return_Object_Formal): New routine.
        (Can_Split_Unconstrained_Function): Code clean up.
        (Copy_Formals,Copy_Return_Object): New routines.
        (Split_Unconstrained_Function): Code clean up and refactoring.

2019-07-03  Gary Dismukes  <dismukes@adacore.com>

        * bindo-augmentors.adb, bindo-augmentors.ads,
        bindo-builders.ads, bindo-elaborators.adb, sem_ch12.adb,
        sem_ch13.adb, sem_spark.adb, sinfo.ads: Minor editorial
        corrections and reformatting.

2019-07-03  Bob Duff  <duff@adacore.com>

        * sem_warn.adb (Check_Infinite_Loop_Warning): Avoid the warning
        if an Iterator_Specification is present.

2019-07-03  Bob Duff  <duff@adacore.com>

        * doc/gnat_ugn/gnat_utility_programs.rst: Document default
        new-line behavior.

2019-07-03  Hristian Kirtchev  <kirtchev@adacore.com>

        * ali.adb: Add with and use clauses for GNAT,
        GNAT.Dynamic_HTables, and Snames.  Add a map from invocation
        signature records to invocation signature ids.  Add various
        encodings of invocation-related attributes.  Sort and update
        table Known_ALI_Lines.
        (Add_Invocation_Construct, Add_Invocation_Relation,
        Body_Placement_Kind_To_Code, Code_To_Body_Placement_Kind,
        Code_To_Invocation_Construct_Kind, Code_To_Invocation_Kind,
        Code_To_Invocation_Graph_Line_Kind, Destroy, Hash): New
        routines.
        (Initialize_ALI): Sort the initialization sequence. Add
        initialization for all invocation-related tables.
        (Invocation_Construct_Kind_To_Code,
        Invocation_Graph_Line_Kind_To_Code, Invocation_Kind_To_Code,
        Invocation_Signature_Of, Present): New routines.
        (Scan_ALI): Add the default values for invocation-related ids.
        Scan invocation graph lines.
        (Scan_Invocation_Graph_Line): New routine.
        * ali.ads: Add with clause for GNAT.Dynamic_Tables.  Add types
        for invocation constructs, relations, and signatures.  Add
        tables for invocation constructs, relations, and signatures.
        Update Unit_Record to capture invocation-related ids.  Relocate
        table Unit_Id_Tables and subtypes Unit_Id_Table, Unit_Id_Array
        from Binde.
        (Add_Invocation_Construct, Add_Invocation_Relation,
        Body_Placement_Kind_To_Code, Code_To_Body_Placement_Kind,
        Code_To_Invocation_Construct_Kind, Code_To_Invocation_Kind,
        Code_To_Invocation_Graph_Line_Kind,
        Invocation_Construct_Kind_To_Code,
        Invocation_Graph_Line_Kind_To_Code, Invocation_Kind_To_Code,
        Invocation_Signature_Of, Present): New routines.
        * binde.adb: Add with and use clause for Types.  Add use clause
        for ALI.Unit_Id_Tables;
        * binde.ads: Relocate table Unit_Id_Tables and subtypes
        Unit_Id_Table, Unit_Id_Array to ALI.
        * bindgen.adb: Remove with and use clause for ALI.
        * bindgen.ads: Remove with and use clause for Binde.  Add with
        and use clause for ALI.
        * bindo.adb,  bindo.ads, bindo-augmentors.adb,
        bindo-augmentors.ads, bindo-builders.adb, bindo-builders.ads,
        bindo-diagnostics.adb, bindo-diagnostics.ads,
        bindo-elaborators.adb, bindo-elaborators.ads, bindo-graphs.adb,
        bindo-graphs.ads, bindo-units.adb, bindo-units.ads,
        bindo-validators.adb, bindo-validators.ads, bindo-writers.adb,
        bindo-writers.ads: New units.
        * debug.adb: Use and describe GNAT debug switches -gnatd_F and
        -gnatd_G.  Add GNATbind debug switches in the ranges dA .. dZ,
        d.a .. d.z, d.A .. d.Z, d.1 .. d.9, d_a .. d_z, d_A .. d_Z, and
        d_1 .. d_9.  Use and describe GNATbind debug switches -d_A,
        -d_I, -d_L, -d_N, -d_O, -d_T, and -d_V.
        * exp_util.adb, exp_util.ads (Exceptions_OK): Relocate to
        Sem_Util.
        * gnatbind.adb: Add with and use clause for Bindo.  Use the new
        Bindo elaboration order only when -d_N is in effect.
        * lib-writ.adb
        (Column, Extra, Invoker, Kind, Line, Locations, Name, Placement,
        Scope, Signature, Target): New routines.
        (Write_ALI): Output all invocation-related data.
        (Write_Invocation_Graph): New routine.
        * lib-writ.ads: Document the invocation graph ALI line.
        * namet.adb, namet.ads (Present): New routines.
        * sem_ch8.adb (Find_Direct_Name): Capture the status of
        elaboration checks and warnings of an identifier.
        (Find_Expanded_Name): Capture the status of elaboration checks
        and warnings of an expanded name.
        * sem_ch12.adb (Analyze_Generic_Package_Declaration): Ensure
        that invocation graph-related data within the body of the main
        unit is encoded in the ALI file.
        (Analyze_Generic_Subprogram_Declaration): Ensure that invocation
        graph-related data within the body of the main unit is encoded
        in the ALI file.
        (Analyze_Package_Instantiation): Perform minimal decoration of
        the instance entity.
        (Analyze_Subprogram_Instantiation): Perform minimal decoration
        of the instance entity.
        * sem_elab.adb: Perform heavy refactoring of all code. The unit
        is now split into "services" which specialize in one area of ABE
        checks.  Add processing in order to capture invocation-graph
        related attributes of the main unit, and encode them in the ALI
        file.  The Processing phase can now operate in multiple modes,
        all described by type Processing_Kind.  Scenarios and targets
        are now distinct at the higher level, and carry their own
        representations. This eliminates the need to constantly
        recompute their attributes, and offers the various processors a
        uniform interface.  The various initial states of the Processing
        phase are now encoded using type Processing_In_State, and
        xxx_State constants.
        * sem_elab.ads: Update the literals of type
        Enclosing_Level_Kind.  Add Inline pragmas on several routines.
        * sem_prag.adb (Process_Inline): Ensure that invocation
        graph-related data within the body of the main unit is encoded
        in the ALI file.
        * sem_util.adb (Enclosing_Generic_Body, Enclosing_Generic_Unit):
        Code clean up.
        (Exceptions_OK): Relocated from Sem_Util.
        (Mark_Save_Invocation_Graph_Of_Body): New routine.
        * sem_util.ads (Exceptions_OK): Relocated from Sem_Util.
        (Mark_Save_Invocation_Graph_Of_Body): New routine.
        * sinfo.adb (Is_Elaboration_Checks_OK_Node): Now applicable to
        N_Variable_Reference_Marker.
        (Is_Elaboration_Warnings_OK_Node): Now applicable to
        N_Expanded_Name, N_Identifier, N_Variable_Reference_Marker.
        (Is_Read): Use Flag4.
        (Is_SPARK_Mode_On_Node): New applicable to
        N_Variable_Reference_Marker.
        (Is_Write): Use Flag5.
        (Save_Invocation_Graph_Of_Body): New routine.
        (Set_Is_Elaboration_Checks_OK_Node): Now applicable to
        N_Variable_Reference_Marker.
        (Set_Is_Elaboration_Warnings_OK_Node): Now applicable to
        N_Expanded_Name, N_Identifier, N_Variable_Reference_Marker.
        (Set_Is_SPARK_Mode_On_Node): New applicable to
        N_Variable_Reference_Marker.
        (Set_Save_Invocation_Graph_Of_Body): New routine.
        * sinfo.ads: Update the documentation of attributes
        Is_Elaboration_Checks_OK_Node, Is_Elaboration_Warnings_OK_Node,
        Is_SPARK_Mode_On_Node.  Update the flag usage of attributes
        Is_Read, Is_Write.  Add attribute Save_Invocation_Graph_Of_Body
        and update its occurrence in nodes.
        (Save_Invocation_Graph_Of_Body): New routine along with pragma
        Inline.
        (Set_Save_Invocation_Graph_Of_Body): New routine along with
        pragma Inline.
        * switch-b.adb (Scan_Binder_Switches): Refactor the scanning of
        debug switches.
        (Scan_Debug_Switches): New routine.
        * libgnat/g-dynhta.adb, libgnat/g-dynhta.ads (Contains): New routine.
        * libgnat/g-graphs.adb (Associate_Vertices): Update the use of
        Component_Vertex_Iterator.
        (Contains_Component, Contains_Edge, Contains_Vertex, Has_Next):
        Reimplemented.
        (Iterate_Component_Vertices): New routine.
        (Iterate_Vertices): Removed.
        (Next): Update the parameter profile.
        (Number_Of_Component_Vertices, Number_Of_Outgoing_Edges): New
        routines.
        * libgnat/g-graphs.ads: Update the initialization of
        No_Component.  Add type Component_Vertex_Iterator.  Remove type
        Vertex_Iterator.
        (Has_Next): Add new versions and remove old ones.
        (Iterate_Component_Vertices): New routine.
        (Iterate_Vertices): Removed.
        (Next): Add new versions and remove old ones.
        (Number_Of_Component_Vertices, Number_Of_Outgoing_Edges): New
        routines.
        * libgnat/g-sets.adb (Contains): Reimplemented.
        * gcc-interface/Make-lang.in (GNATBIND_OBJS): Add
        GNAT.Dynamic_HTables, GNAT.Graphs and Bindo units.
        * rtsfind.ads: Remove extra space.

2019-07-03  Yannick Moy  <moy@adacore.com>

        * sem_spark.adb: Add support for locally borrowing and observing
        a path.
        (Get_Root_Object): Add parameter Through_Traversal to denote
        when we are interesting in getting to the traversed parameter.
        (Is_Prefix_Or_Almost): New function to support detection of
        illegal access to borrowed or observed paths.
        (Check_Pragma): Add analysis of assertion pragmas.

2019-07-03  Ed Schonberg  <schonberg@adacore.com>

        * sem_ch13.adb (Build_Predicate_Functions): In a generic context
        we do not build the bodies of predicate fuctions, but the
        expression in a static predicate must be elaborated to allow
        case coverage checking within the generic unit.
        (Build_Discrete_Static_Predicate): In a generic context, return
        without building function body once the
        Static_Discrete_Predicate expression for the type has been
        constructed.

2019-07-03  Hristian Kirtchev  <kirtchev@adacore.com>

        * bindgen.adb, inline.adb, layout.adb, sem_ch12.adb,
        sem_ch13.adb, sem_ch7.adb, styleg.adb: Minor reformatting.

2019-07-03  Bob Duff  <duff@adacore.com>

        * par-ch3.adb (P_Defining_Identifier): Call
        Check_Defining_Identifier_Casing.
        * style.ads, styleg.ads, styleg.adb
        (Check_Defining_Identifier_Casing): New procedure to check for
        mixed-case defining identifiers.
        * stylesw.ads, stylesw.adb (Style_Check_Mixed_Case_Decls): New
        flag for checking for mixed-case defining identifiers.
        * doc/gnat_ugn/building_executable_programs_with_gnat.rst:
        Document new feature.
        * gnat_ugn.texi: Regenerate.

2019-07-03  Eric Botcazou  <ebotcazou@adacore.com>

        * doc/gnat_ugn/building_executable_programs_with_gnat.rst
        (Warning message control): Document that -gnatw.z/Z apply to
        array types.
        * freeze.adb (Freeze_Entity): Give -gnatw.z warning for array
        types as well, but not if the specified alignment is the minimum
        one.
        * gnat_ugn.texi: Regenerate.

2019-07-03  Bob Duff  <duff@adacore.com>

        * einfo.ads, exp_util.adb, layout.ads, sinfo.ads: Spell "laid"
        correctly.

2019-07-03  Ed Schonberg  <schonberg@adacore.com>

        * sem_ch13.adb (Analyze_Attribute_Definition_Clause): No error
        message on attribute applied to a renaming when the renamed
        object is an aggregate (from code reading).
        (Check_Aspect_At_End_Of_Declarations): In a generic context
        where freeze nodes are not generated, the original expression
        for an aspect may need to be analyzed to precent spurious
        conformance errors when compared with the expression that is
        anakyzed at the end of the current declarative list.

2019-07-03  Eric Botcazou  <ebotcazou@adacore.com>

        * layout.adb (Layout_Type): Do not set the component size of an
        array with a scalar component if the component type is
        overaligned.

2019-07-03  Ed Schonberg  <schonberg@adacore.com>

        * inline.adb (Make_Loop_Labels_Unique):  New procedure to modify
        the source code of subprograms that are inlined by the
        front-end, to prevent accidental duplication between loop labels
        in the inlined code and the code surrounding the inlined call.

2019-07-03  Hristian Kirtchev  <kirtchev@adacore.com>

        * doc/gnat_ugn/elaboration_order_handling_in_gnat.rst: Update
        the section on resolving elaboration circularities to eliminate
        certain combinations of switches which together do not produce
        the desired effect and confuse users.
        * gnat_ugn.texi: Regenerate.

2019-07-03  Arnaud Charlet  <charlet@adacore.com>

        * bindgen.adb (Gen_Main): Disable generation of reference to
        Ada_Main_Program_Name for CCG.
        * bindusg.adb (Display): Add -G to the command-line usage for
        gnatbind.
        * opt.ads (Generate_C_Code): Update comment.
        * switch-b.adb (Scan_Binder_Switches): Add handling for -G.

2019-07-03  Arnaud Charlet  <charlet@adacore.com>

        * sem_ch7.adb (Has_Referencer): Do not consider inlined
        subprograms when generating C code, which allows us to generate
        static inline subprograms.

2019-07-03  Justin Squirek  <squirek@adacore.com>

        * sem_ch6.adb (Check_Conformance): Add expression checking for
        constant modifiers in anonymous access types (in addition to
        "non-null" types) so that they are considered "matching" for
        subsequent conformance tests.

2019-07-03  Arnaud Charlet  <charlet@adacore.com>

        * doc/gnat_rm/standard_and_implementation_defined_restrictions.rst:
        Clarify wording on No_Multiple_Elaboration.
        * gnat_rm.texi: Regenerate.

2019-07-03  Ed Schonberg  <schonberg@adacore.com>

        * sem_ch8.adb (Find_Selected_Component): If the prefix is the
        current instance of a type or subtype, complete the resolution
        of the name by finding the component of the type denoted by the
        selector name.

2019-07-03  Eric Botcazou  <ebotcazou@adacore.com>

        * doc/gnat_rm/interfacing_to_other_languages.rst (Interfacing to C):
        Document that boolean types with convention C now map to C99 bool.
        * gnat_rm.texi: Regenerate.

2019-07-03  Javier Miranda  <miranda@adacore.com>

        * exp_attr.adb (Expand_Min_Max_Attribute): Code cleanup:
        removing code that it is now never executed in the CCG compiler
        (dead code).

2019-07-02  Iain Sandoe  <iain@sandoe.co.uk>

        * libgnat/system-darwin-ppc.ads: Set Stack_Check_Probes True for
        PPC Darwin.

2019-07-01  Ed Schonberg  <schonberg@adacore.com>

        * sem_ch12.adb (Is_Defaulted): New predicate in
        Check_Formal_Package_Intance, to skip the conformance of checks
        on parameters of a formal package that are defaulted,

2019-07-01  Hristian Kirtchev  <kirtchev@adacore.com>

        * checks.adb, exp_ch9.adb, exp_unst.adb, sem_ch4.adb,
        sem_prag.adb, sem_spark.adb: Minor reformatting.

2019-07-01  Ed Schonberg  <schonberg@adacore.com>

        * sem_attr.adb (Analyze_Attribute, case Enum_Rep): Allow prefix
        of attribute to be an attribute reference of a discrete type.

2019-07-01  Eric Botcazou  <ebotcazou@adacore.com>

        * sem_ch12.adb (Analyze_Subprogram_Instantiation): Move up
        handling of Has_Pragma_Inline_Always and deal with
        Has_Pragma_No_Inline.

2019-07-01  Ed Schonberg  <schonberg@adacore.com>

        * sem_ch3.adb (Build_Derived_Record_Type): If the parent type is
        declared as a subtype of a private type with an inherited
        discriminant constraint, its generated full base appears as a
        record subtype, so we need to retrieve its oen base type so that
        the inherited constraint can be applied to it.

2019-07-01  Yannick Moy  <moy@adacore.com>

        * sem_spark.adb: Completely rework the algorithm for ownership
        checking, as the rules in SPARK RM have changed a lot.
        * sem_spark.ads: Update comments.

2019-07-01  Dmitriy Anisimkov  <anisimko@adacore.com>

        * gsocket.h (Has_Sockaddr_Len): Use the offset of sin_family offset in
        the sockaddr_in structure to determine the existence of length field
        before the sin_family.

2019-07-01  Ed Schonberg  <schonberg@adacore.com>

        * sem_prag.adb (Analyze_Pragma, case Weak_External): Pragma only
        applies to entities with run-time addresses, not to types.

2019-07-01  Piotr Trojanek  <trojanek@adacore.com>

        * einfo.adb, sem_ch7.adb, sem_prag.adb, sem_util.adb: Update
        references to the SPARK RM after the removal of Rule 7.1.4(5).

2019-07-01  Piotr Trojanek  <trojanek@adacore.com>

        * sysdep.c: Cleanup references to LynuxWorks in docs and
        comments.

2019-07-01  Ed Schonberg  <schonberg@adacore.com>

        * checks.adb (Insert_Valid_Check): Do not apply validity check
        to variable declared within a protected object that uses the
        Lock_Free implementation, to prevent unwarranted constant
        folding, because entities within such an object msut be treated
        as volatile.

2019-07-01  Eric Botcazou  <ebotcazou@adacore.com>

        * exp_ch9.adb (Check_Inlining): Deal with Has_Pragma_No_Inline.

2019-07-01  Ed Schonberg  <schonberg@adacore.com>

        * exp_unst.adb (Visit_Node, Check_Static_Type): Improve the
        handling of private and incomplete types whose full view is an
        access type, to detect additional uplevel references in dynamic
        bounds. This is relevant to N_Free_Statement among others that
        manipulate types whose full viww may be an access type.

2019-07-01  Pat Rogers  <rogers@adacore.com>

        * doc/gnat_rm/representation_clauses_and_pragmas.rst: Correct
        size indicated for R as a component of an array.
        * gnat_rm.texi: Regenerate.

2019-07-01  Justin Squirek  <squirek@adacore.com>

        * libgnat/s-win32.ads: Add definition for ULONG, modify
        OVERLAPPED type, and add appropriate pragmas.

2019-07-01  Bob Duff  <duff@adacore.com>

        * gnat1drv.adb (gnat1drv): Call Write_ALI if the main unit is
        ignored-ghost.

2019-07-01  Yannick Moy  <moy@adacore.com>

        * sem_ch4.adb (Operator_Check): Refine error message.

2019-07-01  Piotr Trojanek  <trojanek@adacore.com>

        * libgnat/a-calend.ads: Revert "Global => null" contracts on
        non-pure routines.

2019-07-01  Piotr Trojanek  <trojanek@adacore.com>

        * exp_attr.adb, libgnat/g-graphs.ads: Fix typos in comments:
        componant -> component.

2019-07-01  Hristian Kirtchev  <kirtchev@adacore.com>

        * libgnat/g-graphs.adb: Use type Directed_Graph rather than
        Instance in various routines.
        * libgnat/g-graphs.ads: Change type Instance to Directed_Graph.
        Update various routines that mention the type.

2019-07-01  Hristian Kirtchev  <kirtchev@adacore.com>

        * libgnat/g-sets.adb: Use type Membership_Set rathern than
        Instance in various routines.
        * libgnat/g-sets.ads: Change type Instance to Membership_Set.
        Update various routines that mention the type.

2019-07-01  Hristian Kirtchev  <kirtchev@adacore.com>

        * libgnat/g-lists.adb: Use type Doubly_Linked_List rather than
        Instance in various routines.
        * libgnat/g-lists.ads: Change type Instance to
        Doubly_Linked_List. Update various routines that mention the
        type.

2019-07-01  Hristian Kirtchev  <kirtchev@adacore.com>

        * libgnat/g-dynhta.adb: Use type Dynamic_Hash_Table rather than
        Instance in various routines.
        * libgnat/g-dynhta.ads: Change type Instance to
        Dynamic_Hash_Table. Update various routines that mention the
        type.

2019-07-01  Hristian Kirtchev  <kirtchev@adacore.com>

        * exp_attr.adb, exp_ch7.adb, exp_unst.adb, sem_ch3.adb,
        sem_util.adb, uintp.adb, uintp.ads: Minor reformatting.

2019-07-01  Javier Miranda  <miranda@adacore.com>

        * exp_attr.adb (Expand_Min_Max_Attribute): Disable expansion of
        'Min/'Max on integer, enumeration, fixed point and floating
        point types since the CCG backend now provides in file
        standard.h routines to support it.

2019-07-01  Hristian Kirtchev  <kirtchev@adacore.com>

        * impunit.adb: Add GNAT.Graphs to list Non_Imp_File_Names_95.
        * Makefile.rtl, gcc-interface/Make-lang.in: Register unit
        GNAT.Graphs.
        * libgnat/g-dynhta.adb: Various minor cleanups (use Present
        rather than direct comparisons).
        (Delete): Reimplement to use Delete_Node.
        (Delete_Node): New routine.
        (Destroy_Bucket): Invoke the provided destructor.
        (Present): New routines.
        * libgnat/g-dynhta.ads: Add new generic formal Destroy_Value.
        Use better names for the components of iterators.
        * libgnat/g-graphs.adb, libgnat/g-graphs.ads: New unit.
        * libgnat/g-lists.adb: Various minor cleanups (use Present
        rather than direct comparisons).
        (Delete_Node): Invoke the provided destructor.
        (Present): New routine.
        * libgnat/g-lists.ads: Add new generic formal Destroy_Element.
        Use better names for the components of iterators.
        (Present): New routine.
        * libgnat/g-sets.adb, libgnat/g-sets.ads (Destroy, Preset,
        Reset): New routines.

2019-07-01  Dmitriy Anisimkov  <anisimko@adacore.com>

        * libgnat/g-sothco.adb (Get_Address): Fix the case when AF_INET6
        is not defined.

2019-07-01  Ed Schonberg  <schonberg@adacore.com>

        * exp_attr.adb (Expand_Attribute_Reference, case Invalid_Value):
        Resolve result of call to Get_Simple_Init_Val, which may be a
        conversion of a literal.

2019-07-01  Hristian Kirtchev  <kirtchev@adacore.com>

        * freeze.adb (Freeze_Expression): Remove the horrible useless
        name hiding of N. Insert the freeze nodes generated by the
        expression prior to the expression when the nearest enclosing
        scope is transient.

2019-07-01  Pierre-Marie de Rodat  <derodat@adacore.com>

        * doc/gnat_ugn/building_executable_programs_with_gnat.rst: Fix
        formatting issues in the -gnatR section.
        * gnat_ugn.texi: Regenerate.

2019-06-30  Iain Sandoe  <iain@sandoe.co.uk>

        * gnatlink.adb (Link_Step): Remove duplicate -static-libgcc switches.
        Push -shared-libgcc explicitly, when it is the target default (unless
        overidden by the static flag).
        When the user has put an instance of shared/static-libgcc do not push
        a duplicate of this.

2019-06-29  Eric Botcazou  <ebotcazou@adacore.com>

        * gcc-interface/decl.c (gnat_to_gnu_entity): Beep up comment on SAVED,
        and tweak comment on the assertion about the scopes of Itypes.  Do not
        skip the regular processing for Itypes that are E_Record_Subtype with
        a Cloned_Subtype.  Get the Cloned_Subtype for every E_Record_Subtype
        if the type is dummy and hasn't got its own freeze node.
        <E_Record_Subtype>: Save again the DECL of the Cloned_Subtype, if any.
        <E_Access_Subtype>: Save again the DECL of the equivalent type.
        (Gigi_Equivalent_Type) <E_Access_Subtype>: New case.

2019-06-29  Eric Botcazou  <ebotcazou@adacore.com>

        * gcc-interface/utils.c (unchecked_convert): Tweak comment.  Only skip
        dereferences when padding to have the same size on both sides.  Do it
        for destination types with self-referential size too.

2019-06-29  Eric Botcazou  <ebotcazou@adacore.com>

        * gcc-interface/decl.c (gnat_to_gnu_entity) <E_Record_Type>: If the
        type requires strict alignment, then set the RM size to the type size.
        Rework handling of alignment and sizes of tagged types in ASIS mode.
        (validate_size): Rename local variable and remove special handling for
        strict-alignment types.
        * gcc-interface/utils.c (finish_record_type): Constify local variables
        and use properly typed constants.

2019-06-29  Eric Botcazou  <ebotcazou@adacore.com>

        * gcc-interface/decl.c (gnat_to_gnu_field): Rework error messages for
        fields requiring strict alignment, add explicit test on Storage_Unit
        for position and size, and mention type alignment for position.

2019-06-29  Eric Botcazou  <ebotcazou@adacore.com>

        * gcc-interface/trans.c (mark_visited_r): Set TYPE_SIZES_GIMPLIFIED on
        the main variant of a type, if any.

2019-06-29  Eric Botcazou  <ebotcazou@adacore.com>

        * gcc-interface/decl.c (set_nonaliased_component_on_array_type): Add
        missing guard for the presence of TYPE_CANONICAL.
        (set_reverse_storage_order_on_array_type): Likewise.

2019-06-29  Eric Botcazou  <ebotcazou@adacore.com>

        * gcc-interface/gigi.h (make_packable_type): Remove default value.
        (value_factor_p): Tweak prototype.
        * gcc-interface/decl.c (gnat_to_gnu_entity): Add comment.
        (gnat_to_gnu_component_type): Likewise.
        (gnat_to_gnu_field): Likewise.  Fetch the position of the field earlier
        and simplify the condition under which the type is packed.  Declare
        local variable is_bitfield.  Pass 1 as max_align to make_packable_type
        if it is set to true.
        (copy_and_substitute_in_layout): Pass 0 to make_packable_type.
        * gcc-interface/utils.c (make_packable_array_type): New function.
        (make_packable_type): Use it to rewrite the type of array field.
        (maybe_pad_type): Pass align parameter to make_packable_type.
        (create_field_decl): Minor tweaks.
        (value_factor_p): Assert that FACTOR is a power of 2 and replace the
        modulo computation by a masking operation.

2019-06-25  Eric Botcazou  <ebotcazou@adacore.com>

        * gcc-interface/decl.c (gnat_to_gnu_entity): Remove superfluous test
        in previous change.
        * gcc-interface/gigi.h (maybe_character_type): Fix formatting.
        (maybe_character_value): Likewise.

2019-06-24  Jan Hubicka  <jh@suse.cz>

        * gcc-interface/decl.c (gnat_to_gnu_entity): Check that
        type is array or integer prior checking string flag.
        * gcc-interface/gigi.h (maybe_character_type): Likewise.
        (maybe_character_value): Likewise.

2019-06-24  Martin Sebor  <msebor@redhat.com>

        * gcc-interface/utils.c (handle_nonnull_attribute): Quote attribute
        name.

2019-06-18  Arnaud Charlet  <charlet@adacore.com>

        PR ada/80590
        * sem_ch5.adb (Analyze_Loop_Statement): Avoid exception propagation
        during normal processing.

2019-06-17  Arnaud Charlet  <charlet@adacore.com>

        PR ada/80590
        * exp_ch9.adb (Expand_N_Delay_Relative_Statement): Swap the two
        conditions to avoid a unnecessary exception propagation in the default
        case.

2019-05-28  Eric Botcazou  <ebotcazou@adacore.com>

        * gcc-interface/utils.c (handle_stack_protect_attribute): Move around.

2019-05-28  Eric Botcazou  <ebotcazou@adacore.com>

        * doc/gnat_rm/implementation_defined_pragmas.rst (Machine_Attribute):
        Document additional optional parameters.
        * sem_prag.adb (Analyze_Pragma) <Pragma_Machine_Attribute>: Accept
        more than one optional parameter.
        * gcc-interface/decl.c (prepend_one_attribute_pragma): Alphabetize
        the list of supported pragmas.  Simplify the handling of parameters
        and add support for more than one optional parameter.
        * gcc-interface/utils.c (attr_cold_hot_exclusions): New constant.
        (gnat_internal_attribute_table): Add entry for no_icf, noipa, flatten,
        used, cold, hot, target and target_clones.
        (begin_subprog_body): Do not create the RTL for the subprogram here.
        (handle_noicf_attribute): New static function.
        (handle_noipa_attribute): Likewise.
        (handle_flatten_attribute): Likewise.
        (handle_used_attribute): Likewise.
        (handle_cold_attribute): Likewise.
        (handle_hot_attribute): Likewise.
        (handle_target_attribute): Likewise.
        (handle_target_clones_attribute): Likewise.

2019-05-28  Eric Botcazou  <ebotcazou@adacore.com>

        * gcc-interface/trans.c (lvalue_required_for_attribute_p): Return 0
        for 'Size too.
        (Identifier_to_gnu): Use the actual subtype for a reference to a
        packed array in a return statement.
        (Attribute_to_gnu) <Attr_Size>: Do not strip VIEW_CONVERT_EXPRs from
        the prefix in every case.

2019-05-28  Eric Botcazou  <ebotcazou@adacore.com>

        * gcc-interface/trans.c (gnat_to_gnu): Remove superfluous tests on
        Backend_Overflow_Checks_On_Target and rework comments.

2019-05-28  Eric Botcazou  <ebotcazou@adacore.com>

        * gcc-interface/trans.c (walk_nesting_tree): New static function.
        (finalize_nrv): Use it to walk the entire nesting tree.

2019-05-28  Eric Botcazou  <ebotcazou@adacore.com>

        * gcc-interface/decl.c (gnat_to_gnu_entity) <E_Record_Subtype>: Remove
        obsolete test on Is_For_Access_Subtype.

2019-05-28  Eric Botcazou  <ebotcazou@adacore.com>

        * gcc-interface/decl.c (components_to_record): Set a name on the type
        created for the REP part, if any.
        * gcc-interface/utils.c (finish_record_type): Only take the maximum
        when merging sizes for a variant part at offset 0.
        (merge_sizes): Rename has_rep parameter into max.

2019-05-28  Eric Botcazou  <ebotcazou@adacore.com>

        * gcc-interface/utils.c (gnat_internal_attribute_table): Add support
        for stack_protect attribute.
        (handle_stack_protect_attribute): New static function.

2019-05-28  Eric Botcazou  <ebotcazou@adacore.com>

        * gcc-interface/decl.c (intrin_arglists_compatible_p): Do not return
        false if the internal builtin uses a variable list.

2019-05-27  Eric Botcazou  <ebotcazou@adacore.com>

        * gcc-interface/trans.c (Call_to_gnu): Do not initialize the temporary
        created out of addressability concerns if it's for the _Init parameter
        of an initialization procedure.

2019-05-27  Eric Botcazou  <ebotcazou@adacore.com>

        * gcc-interface/ada-builtin-types.def: New file.
        * gcc-interface/ada-builtins.def: Likewise.
        * gcc-interface/ada-tree.h (BUILT_IN_LIKELY): New macro.
        (BUILT_IN_UNLIKELY): Likewise.
        * gcc-interface/trans.c (independent_iterations_p): Initialize the
        auto-vector to 16 elements.
        (Call_to_gnu): Remove local variable and change the vector of actual
        parameters to an auto-vector.  Do not convert actual parameters to
        the argument type for front-end built-in functions.  Add support for
        front-end built-in functions.
        (build_noreturn_cond): Use internal instead of built-in function.
        * gcc-interface/utils.c (c_builtin_type): Include ada-builtin-types.def
        (install_builtin_function_types): Likewise.
        (install_builtin_functions): Include ada-builtins.def first.

2019-05-27  Eric Botcazou  <ebotcazou@adacore.com>

        * gcc-interface/utils.c (maybe_pad_type): Issue the warning for the
        specific case of component types preferably.

2019-05-27  Eric Botcazou  <ebotcazou@adacore.com>

        * gcc-interface/trans.c (Identifier_to_gnu): Minor tweaks.
        (gnat_to_gnu): Do not convert the result if it is a reference to an
        unconstrained array used as the prefix of an attribute reference that
        requires an lvalue.

2019-05-27  Eric Botcazou  <ebotcazou@adacore.com>

        * gcc-interface/trans.c (Gigi_Types_Compatible): New predicate.
        (Identifier_to_gnu): Use it to assert that the type of the identifier
        and that of its entity are compatible for gigi.  Rename a couple of
        local variables and separate the processing of the result type.

2019-05-27  Eric Botcazou  <ebotcazou@adacore.com>

        * gcc-interface/trans.c (Call_to_gnu): Use the unpadded type when
        putting back an intermediate conversion the type of the actuals.

2019-05-27  Eric Botcazou  <ebotcazou@adacore.com>

        * gcc-interface/trans.c (gnat_to_gnu) <Shift operations>: Convert the
        count to the unsigned version of its base type before proceeding.

2019-05-16  Martin Sebor  <msebor@redhat.com>

        * gcc-interface/trans.c (check_inlining_for_nested_subprog): Quote
        reserved names.

2019-05-08  Arnaud Charlet  <charlet@adacore.com>

        * standard.ads.h: New file.

2019-05-07  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

        * gcc-interface/Makefile.in (install-gcc-specs): Use foreach.
        Honor DESTDIR.

2019-04-29  Michael K. Darling  <darlingm@gmail.com>

        * gnatvsn.ads: Bump Library_Version to 10.

2019-04-24  Ramana Radhakrishnan  <ramana.radhakrishnan@arm.com>
            Bernd Edlinger  <bernd.edlinger@hotmail.de>
            Jakub Jelinek  <jakub@redhat.com>

        PR target/89093
        * raise-gcc.c (TARGET_ATTRIBUTE): Define.
        (continue_unwind, personality_body, PERSONALITY_FUNCTION): Add
        TARGET_ATTRIBUTE.

2019-04-07  Eric Botcazou  <ebotcazou@adacore.com>

        * libgnat/i-cexten.ads (CFloat_128): New type.

2019-03-22  Dmitriy Anisimkov  <anisimko@adacore.com>

        PR ada/89583
        * libgnat/g-socket.adb (Bind_Socket, Connect_Socket,
        Send_Socket): Fix the computation of structure lengths passed to
        low level routines.
        (Is_IPv6_Address): Fix the number of expected colons.

2019-03-11  Martin Liska  <mliska@suse.cz>

        * gcc-interface/misc.c (gnat_post_options): Wrap option name in string
        format message and fix GNU coding style.

2019-02-08  Eric Botcazou  <ebotcazou@adacore.com>

        * gcc-interface/trans.c (gnat_to_gnu) <N_Aggregate>: Minor tweak.
        * gcc-interface/utils.c (convert): Do not pad when doing an unchecked
        conversion here.  Use TREE_CONSTANT throughout the function.
        (unchecked_convert): Also pad if the source is a CONSTRUCTOR and the
        destination is a more aligned array type or a larger aggregate type,
        but not between original and packable versions of a type.

2019-02-08  Eric Botcazou  <ebotcazou@adacore.com>

        * gcc-interface/utils.c (max_size) <tcc_unary>: Be prepared for an
        operand with VOID_TYPE.

2019-02-08  Eric Botcazou  <ebotcazou@adacore.com>

        * gcc-interface/trans.c (elaborate_all_entities): Do not elaborate the
        entities of a package renaming another one.

2019-02-08  Eric Botcazou  <ebotcazou@adacore.com>

        * gcc-interface/trans.c (Regular_Loop_to_gnu): Replace tests on
        individual flag_unswitch_loops and flag_tree_loop_vectorize switches
        with test on global optimize switch.
        (Raise_Error_to_gnu): Likewise.

2019-02-07  Eric Botcazou  <ebotcazou@adacore.com>

        * libgnarl/s-linux__sparc.ads (ETIMEDOUT): Set to correct value.

2019-02-06  Arnaud Charlet  <charlet@adacore.com>

        * libgnarl/s-linux__x32.ads: Resync list of signals with s-linux.ads

2019-01-27  Eric Botcazou  <ebotcazou@adacore.com>

        * repinfo.adb (List_Component_Layout): Remove superfluous space for
        zero-sized field.
        * gcc-interface/ada-tree.h (TYPE_IS_EXTRA_SUBTYPE_P): New macro.
        * gcc-interface/gigi.h (create_extra_subtype): Declare.
        * gcc-interface/decl.c (TYPE_ARRAY_SIZE_LIMIT): Likewise.
        (update_n_elem): New function.
        (gnat_to_gnu_entity): Use create_extra_subtype to create extra subtypes
        instead of doing it manually.
        <E_Array_Type>: Use update_n_elem to compute the maximum size.  Use the
        index type instead of base type for the bounds. Set TYPE_ARRAY_MAX_SIZE
        of the array to the maximum size.
        <E_Array_Subtype>: Create an extra subtype using the index type of the
        base array type for self-referential bounds.  Use update_n_elem to
        compute the maximum size.  Set TYPE_ARRAY_MAX_SIZE of the array to the
        maximum size.
        (gnat_to_gnu_field): Clear DECL_NONADDRESSABLE_P on discriminants.
        * gcc-interface/misc.c (gnat_get_alias_set): Return the alias set of
        the base type for an extra subtype.
        (gnat_type_max_size): Remove obsolete code.
        * gcc-interface/trans.c (Attribute_to_gnu): Minor tweak.
        (can_be_lower_p): Deal with pathological types.
        * gcc-interface/utils.c (create_extra_subtype): New function.
        (create_field_decl): Minor tweak.
        (max_size) <tcc_reference>: Compute a better value by using the extra
        subtypes on the self-referential bounds.
        <tcc_binary>: Rewrite.  Deal with "negative value" in unsigned types.
        <tcc_expression>: Likewise.
        * gcc-interface/utils2.c (compare_arrays): Retrieve the original bounds
        of the arrays upfront.  Swap only if the second length is not constant.
        Use comparisons on the original bounds consistently for the null tests.
        (build_binary_op): Use TYPE_IS_EXTRA_SUBTYPE_P macro.
        (build_allocator): Minor tweak.

2019-01-27  Eric Botcazou  <ebotcazou@adacore.com>

        * gcc-interface/decl.c (array_type_has_nonaliased_component): Return
        the same value for every dimension of a multidimensional array type.

2019-01-26  Eric Botcazou  <ebotcazou@adacore.com>

        * gcc-interface/trans.c (Regular_Loop_to_gnu): Use the SLOC of the
        iteration scheme, if present, throughout the translation.

2019-01-26  Eric Botcazou  <ebotcazou@adacore.com>

        * gcc-interface/trans.c (gnat_to_gnu) <N_Assignment_Statement>: Use
        DECL_SIZE_UNIT instead of TYPE_SIZE_UNIT for the size to be assigned
        by a call to memset if the LHS is a DECL.

2019-01-26  Eric Botcazou  <ebotcazou@adacore.com>

        * gcc-interface/trans.c (struct loop_info_d): Remove artificial field.
        (Loop_Statement_to_gnu): Do not set it.

2019-01-26  Eric Botcazou  <ebotcazou@adacore.com>

        * gcc-interface/trans.c (Iterate_Acc_Clause_Arg): Fix formatting.
        (Acc_gnat_to_gnu): Likewise.
        (Acc_Data_to_gnu): Likewise.
        (Acc_Var_to_gnu): Likewise.
        (Acc_Reduc_to_gnu): Likewise.
        (Acc_Size_List_to_gnu): Likewise.
        (Pragma_to_gnu) <Pragma_Acc_Loop>: Likewise.
        <Pragma_Acc_Data>): Likewise.
        (find_loop_for): Remove default value for parameters.
        * gcc-interface/trans.c (gnat_to_gnu) <N_Op_And>: Merge into...
        <N_Op_Eq>): ...this.

2019-01-26  Eric Botcazou  <ebotcazou@adacore.com>

        * gcc-interface/decl.c (annotate_value) <INTEGER_CST>: Use test on
        the sign bit instead of on the sign of the value.
        <PLUS_EXPR>: Turn addition of negative constant into subtraction.
        <MULT_EXPR>: Add test for degenerate case.
        <BIT_AND_EXPR>: Simplify.

2019-01-18  Sebastian Huber  <sebastian.huber@embedded-brains.de>

        * s-oscons-tmplt.c (AF_INET6): Do not undefine for RTEMS.

2019-01-09  Sandra Loosemore  <sandra@codesourcery.com>

        PR other/16615
        * exp_ch11.adb: Change "can not" to "cannot".
        * sem_ch4.adb: Likewise.

2019-01-09  Sandra Loosemore  <sandra@codesourcery.com>

        PR other/16615
        * exp_ch9.adb: Mechanically replace "can not" with "cannot".
        * libgnat/s-regpat.ads: Likewise.
        * par-ch4.adb: Likewise.
        * set_targ.adb: Likewise.
        * types.ads: Likewise.

2019-01-08  Justin Squirek  <squirek@adacore.com>

        Revert:
        2018-07-31  Justin Squirek  <squirek@adacore.com>

        * lib-writ.adb (Write_With_Lines): Modfiy the generation
        of dependencies within ali files so that source unit
        bodies are properly listed even if said bodies are
        missing.  Perform legacy behavior in GNATprove mode.
        * lib-writ.ads: Modify documentation to reflect current
        behavior.

        and:
        2018-09-26  Justin Squirek  <squirek@adacore.com>

        * lib-writ.adb, lib-writ.ads (Write_With_Lines): Add
        documentation and an extra conditional check for RCI
        units so that generated ali files will list the spec
        only instead of a body when a body is not found.

2019-01-04  Eric Botcazou  <ebotcazou@adacore.com>

        * gnatvsn.ads: Bump copyright year.

2019-01-01  Jakub Jelinek  <jakub@redhat.com>

        Update copyright years.

        * gnat_ugn.texi: Bump @copying's copyright year.
        * gnat_rm.texi: Likewise.
\f
Copyright (C) 2019 Free Software Foundation, Inc.

Copying and distribution of this file, with or without modification,
are permitted in any medium without royalty provided the copyright
notice and this notice are preserved.