ghost.ads, ghost.adb (Is_Ignored_Ghost_Unit): New routine.

[official-gcc.git] / gcc / ada / ChangeLog

2017-01-23  Hristian Kirtchev  <kirtchev@adacore.com>

        * ghost.ads, ghost.adb (Is_Ignored_Ghost_Unit): New routine.
        * gnat1drv.adb Generate an empty object file for an ignored
        Ghost compilation unit.
        * inline.adb, sem_util.adb, sem_ch4.adb: Minor reformatting.

2017-01-23  Yannick Moy  <moy@adacore.com>

        * sem_ch4.adb (Analyze_Indexed_Component_Form):
        Adapt to inlined prefix with string literal subtype.
        * inline.adb (Expand_Inlined_Call): Keep unchecked
        conversion inside inlined call when formal type is constrained.

2017-01-23  Javier Miranda  <miranda@adacore.com>

        * sem_util.adb (New_Copy_Tree): Code cleanup:
        removal of global variables. All the global variables, global
        functions and tables of this subprogram are now declared locally.

2017-01-23  Gary Dismukes  <dismukes@adacore.com>

        * exp_strm.ads: Minor reformatting and typo fixes.

2017-01-23  Hristian Kirtchev  <kirtchev@adacore.com>

        * sem_aggr.adb, par_sco.adb, exp_util.adb, sem.adb, sem_ch4.adb,
        exp_aggr.adb: Minor reformatting.
        * g-diopit.adb: minor grammar/punctuation fix in comment.
        * g-byorma.ads: minor fix of unbalanced parens in comment.

2017-01-23  Hristian Kirtchev  <kirtchev@adacore.com>

        * par.adb: Update the documentation of component Labl.
        * par-ch6.adb (P_Return_Statement): Set the expected label of
        an extended return statement to Error.

2017-01-23  Tristan Gingold  <gingold@adacore.com>

        * s-boustr.ads, s-boustr.adb (Is_Full): New function.

2017-01-23  Ed Schonberg  <schonberg@adacore.com>

        * expander.adb: Handle N_Delta_Aggregate.

2017-01-23  Javier Miranda  <miranda@adacore.com>

        * exp_ch6.adb (Expand_Call): Improve the code that
        checks if some formal of the called subprogram is a class-wide
        interface, to handle subtypes of class-wide interfaces.

2017-01-23  Javier Miranda  <miranda@adacore.com>

        * checks.adb (Apply_Parameter_Aliasing_Checks):
        Remove side effects of the actuals before generating the overlap
        check.

2017-01-23  Justin Squirek  <squirek@adacore.com>

        * exp_strm.ads, exp_strm.ads
        (Build_Record_Or_Elementary_Input_Function): Add an extra parameter so
        as to avoid getting the underlying type by default.
        * exp_attr.adb (Expand_N_Attribute_Reference): Remove use of
        underlying type in the Iiput and output attribute cases when
        building their respective functions.

2017-01-23  Gary Dismukes  <dismukes@adacore.com>

        * scng.adb: Minor reformatting of error message.

2017-01-23  Ed Schonberg  <schonberg@adacore.com>

        * sem_ch6.adb (Analyze_Expression_Function): Do not attempt
        to freeze the return type of an expression funxtion that is a
        completion, if the type is a limited view and the non-limited
        view is available.

2017-01-23  Ed Schonberg  <schonberg@adacore.com>

        * par-ch4.adb (P_Aggregate_Or_Parent_Expr): Recognize delta
        aggregate construct.
        (P_Record_Or_Array_Component_Association): An array aggregate
        can start with an Iterated_Component_Association.
        * scng.adb: Modify error message on improper use of @ in earlier
        versions of the language.
        * sinfo.ads: New node kind N_Delta_Aggregate.
        * sinfo.adb: An N_Delta_Aggregate has component associations and
        an expression.
        * sem_res.adb (Resolve): Call Resolve_Delta_Aggregate.
        * sem_aggr.ads, sem_aggr.adb (Resolve_Iterated_Component_Association):
        Create a new index for each one of the choices in the association,
        to prevent spurious homonyms in the scope.
        (Resolve_Delta_Aggregate): New.
        * sem.adb: An N_Delta_Aggregate is analyzed like an aggregate.
        * exp_util.adb (Insert_Actions): Take into account
        N_Delta_Aggregate.
        * exp_aggr.ads: New procedure Expand_N_Delta_Aggregate.
        * exp_aggr.adb: New procedure Expand_N_Delta_Aggregate,
        and local procedures Expand_Delta_Array_Aggregate and
        expand_Delta_Record_Aggregate.
        * sprint.adb: Handle N_Delta_Aggregate.

2017-01-23  Hristian Kirtchev  <kirtchev@adacore.com>

        * exp_ch11.adb (Expand_N_Exception_Declaration): Generate an
        empty name when the exception declaration is subject to pragma
        Discard_Names.
        (Null_String): New routine.

2017-01-23  Hristian Kirtchev  <kirtchev@adacore.com>

        * par-ch9.adb (P_Protected_Definition): Parse
        any optional and potentially illegal pragmas which appear in
        a protected operation declaration list.
        (P_Task_Items): Parse
        any optional and potentially illegal pragmas which appear in a
        task item list.

2017-01-23  Pascal Obry  <obry@adacore.com>

        * s-taprop-mingw.adb (Enter_Task): Initialize the Thread handle which
        is needed when a foreign thread call a Win32 API using a thread handle
        like GetThreadTimes() for example.

2017-01-23  Hristian Kirtchev  <kirtchev@adacore.com>

        * sem_ch13.adb (Analyze_Attribute_Definition_Clause): Do not
        allow an 'Address clause to be specified on a prefix of a
        class-wide type.

2017-01-23  Hristian Kirtchev  <kirtchev@adacore.com>

        * checks.adb (Insert_Valid_Check): Ensure that the prefix of
        attribute 'Valid is a renaming of the original expression when
        the expression denotes a name. For all other kinds of expression,
        use a constant to capture the value.
        * exp_util.adb (Is_Name_Reference): Moved to Sem_Util.
        * sem_util.ads, sem_util.adb (Is_Name_Reference): Moved from Exp_Util.

2017-01-23  Justin Squirek  <squirek@adacore.com>

        * sem_eval.adb (Eval_Integer_Literal): Add special
        case to avoid optimizing out check if the literal appears in
        an if-expression.

2017-01-23  Hristian Kirtchev  <kirtchev@adacore.com>

        * sem_ch13.adb (Analyze_Attribute_Definition_Clause): Do not
        allow an 'Address clause to be specified on a prefix of a
        class-wide type.

2017-01-23  Hristian Kirtchev  <kirtchev@adacore.com>

        * checks.adb (Insert_Valid_Check): Ensure that the prefix of
        attribute 'Valid is a renaming of the original expression when
        the expression denotes a name. For all other kinds of expression,
        use a constant to capture the value.
        * exp_util.adb (Is_Name_Reference): Moved to Sem_Util.
        * sem_util.ads, sem_util.adb (Is_Name_Reference): Moved from Exp_Util.

2017-01-23  Justin Squirek  <squirek@adacore.com>

        * sem_eval.adb (Eval_Integer_Literal): Add special
        case to avoid optimizing out check if the literal appears in
        an if-expression.

2017-01-23  Ed Schonberg  <schonberg@adacore.com>

        * sem_ch4.adb (Try_Primitive_Operations,
        Is_Valid_First_Argument_Of): argument is valid if it is a derived
        type with unknown discriminants that matches its underlying
        record view.
        * exp_util.adb (Expand_Subtype_From_Expr): Do not expand
        expression if its type is derived from a limited type with
        unknown discriminants, because the expansion (which is a call)
        must be expanded in the enclosing context to add the proper build-
        in-place parameters to the call.
        * lib.ads, exp_ch9.adb: Minor fixes in comments.

2017-01-23  Yannick Moy  <moy@adacore.com>

        * frontend.adb (Frontend): Do not load runtime
        unit for GNATprove when parsing failed.
        * exp_ch9.adb: minor removal of extra whitespace
        * exp_ch6.adb: minor typo in comment
        * sem_util.adb: Code cleanup.
        * exp_ch9.ads, par-ch2.adb: minor style fixes in whitespace and comment
        * a-ngcefu.adb: minor style fix in whitespace

2017-01-23  Thomas Quinot  <quinot@adacore.com>

        * scos.ads: Document usage of 'd' as default SCO kind for
        declarations.
        * par_sco.adb (Traverse_Declarations_Or_Statements.
        Traverse_Degenerate_Subprogram): New supporting routine for expression
        functions and null procedures.
        (Traverse_Declarations_Or_Statements.Traverse_One): Add
        N_Expression_Function to the subprogram case; add required
        support for null procedures and expression functions.

2017-01-23  Bob Duff  <duff@adacore.com>

        * namet.ads (Bounded_String): Decrease the size of type
        Bounded_String to avoid running out of stack space.
        * namet.ads (Append): Don't ignore buffer overflow; raise
        Program_Error instead.

2017-01-23  Hristian Kirtchev  <kirtchev@adacore.com>

        * exp_ch5.adb, freeze.adb, par-ch4.adb, scng.adb, sem_ch13.adb,
        sem_ch3.adb, sem_ch5.adb, sem_ch5.ads, sem_util.adb, sinfo.ads: Minor
        reformatting.
        * exp_ch9.adb: minor style fix in comment.

2017-01-23  Ed Schonberg  <schonberg@adacore.com>

        * sem_ch4.adb (Analyze_Allocator): Handle properly a type derived
        for a limited record extension with unknown discriminants whose
        full view has no discriminants.

2017-01-23  Yannick Moy  <moy@adacore.com>

        * exp_spark.adb: Alphabetize with clauses.

2017-01-23  Yannick Moy  <moy@adacore.com>

        * sem_util.adb (Has_Enabled_Property): Treat
        protected objects and variables differently from other variables.

2017-01-23  Thomas Quinot  <quinot@adacore.com>

        * sem_ch13.adb (Adjust_Record_For_Reverse_Bit_Order):
        Split original Ada 95 part off into new subprogram
        below. Call that subprogram (instead of proceeding with
        AI95-0133 behaviour) if debug switch -gnatd.p is in use.
        (Adjust_Record_For_Reverse_Bit_Order_Ada_95): ... new subprogram
        * debug.adb Document new switch -gnatd.p
        * freeze.adb (Freeze_Entity.Freeze_Record_Type): Do not adjust
        record for reverse bit order if an error has already been posted
        on the record type.  This avoids generating extraneous "info:"
        messages for illegal code.

2017-01-23  Justin Squirek  <squirek@adacore.com>

        * sem_ch3.adb (Analyze_Declarations): Correct comments
        * freeze.adb (Find_Constant): Add detection of deferred constants
        so they are not incorrectly flagged as premature.

2017-01-23  Ed Schonberg  <schonberg@adacore.com>

        * scans.ads: New token At_Sign. Remove '@' from list of illegal
        characters for future version of the language. '@' is legal name.
        * scng.ads, scng.adb (Scan):  Handle '@' appropriately.
        * scn.adb (Scan_Reserved_Identifier): An occurrence of '@'
        denotes a Target_Name.
        * par-ch4.adb (P_Name, P_Primary): Handle Target_Name.
        * sinfo.ads, sinfo.adb (N_Target_Name): New non-terminal node.
        (Has_Target_Names): New flag on N_Assignment_Statement, to
        indicate that RHS has occurrences of N_Target_Name.
        * sem.adb: Call Analyze_Target_Name.
        * sem_ch5.ads, sem_ch5.adb (Analyze_Target_Name): New subpogram.
        (urrent_LHS): Global variable that denotes LHS of assignment,
        used in the analysis of Target_Name nodes.
        * sem_res.adb (Resolve_Target_Name): New procedure.
        * exp_ch5.adb (Expand_Assign_With_Target_Names): (AI12-0125):
        N is an assignment statement whose RHS contains occurences of @
        that designate the value of the LHS of the assignment. If the
        LHS is side-effect free the target names can be replaced with
        a copy of the LHS; otherwise the semantics of the assignment
        is described in terms of a procedure with an in-out parameter,
        and expanded as such.
        (Expand_N_Assignment_Statement): Call
        Expand_Assign_With_Target_Names when needed.
        * exp_util.adb (Insert_Actions): Take into account N_Target_Name.
        * sprint.adb: Handle N_Target_Name.

2017-01-23  Eric Botcazou  <ebotcazou@adacore.com>

        * checks.adb: Minor fix in comment.

2017-01-23  Philippe Gil  <gil@adacore.com>

        * g-debpoo.adb (Do_Report) remove freed chunks from chunks
        count in Sort = Memory_Usage or Allocations_Count

2017-01-23  Justin Squirek  <squirek@adacore.com>

        * sem_ch3.adb: Code cleanup.

2017-01-23  Hristian Kirtchev  <kirtchev@adacore.com>

        * sem_prag.adb (Analyze_Refined_Depends_In_Decl_Part): Move all global
        variables to the local variable section. Update the profile
        of various nested routine that previously had visibility
        of those globals. One the matching phase has completed,
        remove certain classes of clauses which are considered noise.
        (Check_Dependency_Clause): Properly detect a match between two
        'Result attributes. Update the various post-match cases to use
        Is_Already_Matched as this routine now automatically recognizes
        a previously matched 'Result attribute.
        (Is_Already_Matched): New routine.
        (Remove_Extra_Clauses): New routine.
        (Report_Extra_Clauses): Remove the detection of ... => null
        clauses as this is now done in Remove_Extra_Clauses.

2017-01-23  Ed Schonberg  <schonberg@adacore.com>

        * sem_aggr.adb (Resolve_Array_Aggregate): In ASIS mode do not
        report on spurious overlaps between values involving a subtype
        with a static predicate, because the expansion of such a subtype
        into individual ranges in inhibited in ASIS mode.

2017-01-23  Justin Squirek  <squirek@adacore.com>

        * sem_ch3.adb (Analyze_Declarations): Add detection
        of an edge case and delay freezing if it is present.

2017-01-23  Hristian Kirtchev  <kirtchev@adacore.com>

        * sem_ch3.adb, exp_spark.adb, exp_attr.adb, sem_ch9.adb, sem_prag.adb,
        sem_util.adb, sem_warn.adb, exp_ch3.adb: Minor reformatting.

2017-01-23  Hristian Kirtchev  <kirtchev@adacore.com>

        * freeze.adb (Freeze_Subprogram): Ensure that all anonymous
        access-to-subprogram types inherit the convention of the
        associated subprogram.  (Set_Profile_Convention): New routine.
        * sem_ch6.adb (Check_Conformance): Do not compare the conventions
        of the two entities directly, use Conventions_Match to account
        for anonymous access-to-subprogram and subprogram types.
        (Conventions_Match): New routine.

2017-01-23  Claire Dross  <dross@adacore.com>

        * exp_spark.adb (Expand_SPARK_Attribute_Reference): For attributes
        which return Universal_Integer, force the overflow check flag for
        Length and Range_Length for types as big as Long_Long_Integer.

2017-01-23  Claire Dross  <dross@adacore.com>

        * exp_spark.adb (Expand_SPARK_Attribute_Reference):  For
        attributes which return Universal_Integer, introduce a conversion
        to the expected type with the appropriate check flags set.
        * sem_res.adb (Resolve_Range): The higher bound can be in Typ's
        base type if the range is null. It may still be invalid if it
        is higher than the lower bound. This is checked later in the
        context in which the range appears.

2017-01-23  Pierre-Marie de Rodat  <derodat@adacore.com>

        * scos.ads: Introduce a constant to represent ignored
        dependencies in SCO_Unit_Table_Entry.

2017-01-23  Hristian Kirtchev  <kirtchev@adacore.com>

        * exp_ch9.adb (Expand_N_Protected_Type_Declaration): Remove extra
        spaces from error messages.

2017-01-23  Ed Schonberg  <schonberg@adacore.com>

        * exp_ch3.adb (Check_Large_Modular_Array): New procedure,
        subsidiary to Expand_N_Object_ Declaration, to compute a guard on
        an object declaration for an array type with a modular index type
        with the size of Long_Long_Integer. Special processing is needed
        in this case to compute reliably the size of the object, and
        eventually  to raise Storage_Error, when wrap-around arithmetic
        might compute a meangingless size for the object.

2017-01-23  Justin Squirek  <squirek@adacore.com>

        * a-wtenau.adb, par-endh.adb, sem_prag.adb,
        sem_type.adb: Code cleanups.

2017-01-23  Bob Duff  <duff@adacore.com>

        * sem_res.adb (Resolve_Call): In the part of the code where
        it is deciding whether to turn the call into an indexed
        component, avoid doing so if the call is to an instance of
        Unchecked_Conversion. Otherwise, the compiler turns it into an
        indexed component, and resolution of that turns it back into a
        function call, and so on, resulting in infinite recursion.
        * sem_util.adb (Needs_One_Actual): If the first formal has a
        default, then return False.

2017-01-21  Eric Botcazou  <ebotcazou@adacore.com>

        * sem_eval.adb (Compile_Time_Compare): Reinstate the expr+literal (etc)
        optimizations when the type is modular and the offsets are equal.

2017-01-20  Thomas Quinot  <quinot@adacore.com>

        * sem_warn.adb (Warn_On_Useless_Assignment): Adjust wording of warning
        message.

2017-01-20  Nicolas Roche  <roche@adacore.com>

        * terminals.c: Ignore failures on setpgid and tcsetpgrp commands.

2017-01-20  Bob Duff  <duff@adacore.com>

        * sem_eval.adb (Compile_Time_Compare): Disable the expr+literal
        (etc) optimizations when the type is modular.

2017-01-20  Yannick Moy  <moy@adacore.com>

        * sem_ch6.adb (Move_Pragmas): move some pragmas,
        but copy the SPARK_Mode pragma instead of moving it.
        (Build_Subprogram_Declaration): Ensure that the generated spec
        and original body share the same SPARK_Pragma aspect/pragma.
        * sem_util.adb, sem_util.ads (Copy_SPARK_Mode_Aspect): New
        procedure to copy SPARK_Mode aspect.

2017-01-20  Bob Duff  <duff@adacore.com>

        * sem_ch3.adb (Analyze_Declarations): Disable Resolve_Aspects
        even in ASIS mode.
        * sem_ch13.adb (Resolve_Name): Enable setting the entity to
        Empty even in ASIS mode.

2017-01-20  Hristian Kirtchev  <kirtchev@adacore.com>

        * exp_ch9.adb: minor style fixes in comments.
        * sem_ch9.adb (Analyze_Delay_Relative): in GNATprove mode a delay
        relative statement introduces an implicit dependency on
        Ada.Real_Time.Clock_Time.
        * sem_util.adb: Minor reformatting.

2017-01-20  Ed Schonberg  <schonberg@adacore.com>

        * sem_ch13.adb (Analyze_Aspect_Specifications): Aspect Alignment
        must be treated as delayed aspect even if the expression is
        a literal, because the aspect affects the freezing and the
        elaboration of the object to which it applies.

2017-01-20  Tristan Gingold  <gingold@adacore.com>

        * s-osinte-vxworks.ads (Interrup_Range): New subtype.

2017-01-20  Ed Schonberg  <schonberg@adacore.com>

        * lib-xref.adb (Generate_Reference): Do not warn about the
        presence of a pragma Unreferenced if the entity appears as the
        actual in a procedure call that does not come from source.

2017-01-20  Pascal Obry  <obry@adacore.com>

        * expect.c, terminals.c: Fix some warnings about unused variables.
        * gsocket.h, adaint.c, adaint.h: Fix some more warnings in the C part
        of the runtime.

2017-01-20  Bob Duff  <duff@adacore.com>

        * exp_attr.adb (Constrained): Apply an access check (check that
        the prefix is not null) when the prefix denotes an object of an
        access type; that is, when there is an implicit dereference.

2017-01-20  Gary Dismukes  <dismukes@adacore.com>

        * s-rident.ads (constant Profile_Info): Remove
        No_Calendar from GNAT_Extended_Ravenscar restrictions.

2017-01-20  Tristan Gingold  <gingold@adacore.com>

        *  s-maccod.ads: Add pragma No_Elaboration_Code_All

2017-01-20  Hristian Kirtchev  <kirtchev@adacore.com>

        * ghost.adb (Mark_Ghost_Clause): New routine.
        (Prune_Node): Do not prune compilation unit nodes.
        (Remove_Ignored_Ghost_Code): Prune the compilation unit node directly.
        This does not touch the node itself, but does prune all its fields.
        * ghost.ads (Mark_Ghost_Clause): New routine.
        * sem_ch8.adb (Analyze_Use_Package): Emit an error when a use
        package clause mentions Ghost and non-Ghost packages. Mark a
        use package clause as Ghost when it mentions a Ghost package.
        (Analyze_Use_Type): Emit an error when a use type clause mentions
        Ghost and non-Ghost types. Mark a use type clause as Ghost when
        it mentions a Ghost type.
        * sem_ch10.adb (Analyze_With_Clause): Mark a with clause as
        Ghost when it withs a Ghost unit.

2017-01-20  Javier Miranda  <miranda@adacore.com>

        * sem_res.adb (Resolve_Call): If a function call
        returns a limited view of a type and at the point of the call the
        function is not declared in the extended main unit then replace
        it with the non-limited view, which must be available. If the
        called function is in the extended main unit then no action is
        needed since the back-end handles this case.

2017-01-20  Eric Botcazou  <ebotcazou@adacore.com>

        * sem_ch7.adb (Contains_Subp_Or_Const_Refs): Rename into...
        (Contains_Subprograms_Refs): ...this.  Adjust comment
        for constants.  (Is_Subp_Or_Const_Ref): Rename into...
        (Is_Subprogram_Ref): ...this.
        (Has_Referencer): Rename Has_Non_Subp_Const_Referencer variable into
        Has_Non_Subprograms_Referencer and adjust comment.  Remove
        incorrect shortcut for package declarations and bodies.

2017-01-20  Ed Schonberg  <schonberg@adacore.com>

        * sem_ch3.adb (Complete_Private_Subtype): If the scope of the
        base type differs from that of the completion and the private
        subtype is an itype (created for a constraint on an access
        type e.g.), set Delayed_Freeze on both to prevent out-of-scope
        anomalies in gigi.

2017-01-20  Hristian Kirtchev  <kirtchev@adacore.com>

        * sem_ch6.adb (Analyze_Subprogram_Body_Helper):
        When inheriting the SPARK_Mode of a prior expression function,
        look at the properly resolved entity rather than the initial
        candidate which may denote a homonym.

2017-01-20  Ed Schonberg  <schonberg@adacore.com>

        * sem_prag.adb (Rewrite_Assertion_Kind): If the name is
        Precondition or Postcondition, and the context is pragma
        Check_Policy, indicate that this Pre-Ada2012 usage is deprecated
        and suggest the standard names Assertion_Policy /Pre /Post
        instead.

2017-01-20  Hristian Kirtchev  <kirtchev@adacore.com>

        * sem_ch10.adb, sem_cat.adb: Minor reformatting.

2017-01-20  Javier Miranda  <miranda@adacore.com>

        * sem_ch3.adb (Access_Type_Declaration): Protect access to the
        Entity attribute.
        * sem_ch10.adb (Install_Siblings): Skip processing malformed trees.
        * sem_cat.adb (Validate_Categoriztion_Dependency): Skip processing
        malformed trees.

2017-01-20  Ed Schonberg  <schonberg@adacore.com>

        * sem_ch13.adb (Analyze_Aspect_Specification, case
        Dynamic_Predicate): If the entity E is a subtype that inherits
        a static predicate for its parent P,, the inherited and the
        new predicate combine in the generated predicate function,
        and E only has a dynamic predicate.

2017-01-20  Tristan Gingold  <gingold@adacore.com>

        * s-boustr.ads, s-boustr.adb: New package.
        * Makefile.rtl: Add s-boustr.

2017-01-20  Hristian Kirtchev  <kirtchev@adacore.com>

        * inline.adb (Process_Formals): Qualify the
        expression of a return statement when it yields a universal type.

2017-01-20  Hristian Kirtchev  <kirtchev@adacore.com>

        * freeze.adb (Freeze_All): Freeze the default
        expressions of all eligible formal parameters that appear in
        entries, entry families, and protected subprograms.

2017-01-20  Ed Schonberg  <schonberg@adacore.com>

        * sem_ch3.adb (Check_Nonoverridable_Aspects); Refine check
        for illegal inherited Implicit_Dereference aspects with renamed
        discriminants.

2017-01-20  Javier Miranda  <miranda@adacore.com>

        * debug.adb (switch d.6): do not avoid declaring unreferenced itypes.
        * nlists.ads (Lock_Lists, Unlock_Lists): New subprograms.
        * nlists.adb (Lock_Lists, Unlock_Lists): New subprograms.
        (Set_First, Set_Last, Set_List_Link, Set_Next, Set_Parent,
        Set_Prev, Tree_Read): Adding assertion.
        * atree.ads (Lock_Nodes, Unlock_Nodes): New subprograms.
        * atree.adb (Lock_Nodes, Unlock_Nodes): New subprograms.
        (Set_Analyzed, Set_Check_Actuals, Set_Comes_From_Source,
        Set_Ekind, Set_Error_Posted, Set_Has_Aspects,
        Set_Is_Ignored_Ghost_Node, Set_Original_Node, Set_Paren_Count,
        Set_Parent, Set_Sloc, Set_Nkind, Set_FieldNN, Set_NodeNN,
        Set_ListNN, Set_ElistNN, Set_NameN, Set_StrN, Set_UintNN,
        Set_UrealNN, Set_FlagNNN, Set_NodeN_With_Parent,
        Set_ListN_With_Parent): Adding assertion.

2017-01-20  Ed Schonberg  <schonberg@adacore.com>

        * sem_prag.adb (Process_Convention): Diagnose properly a pragma
        import that applies to several homograph subprograms. when one
        of them is declared by a subprogram body.

2017-01-20  Justin Squirek  <squirek@adacore.com>

        * exp_ch6.adb (Expand_Call): Remove optimization
        that nulls out calls to null procedures.

2017-01-20  Yannick Moy  <moy@adacore.com>

        * inline.adb (Expand_Inlined_Call): Keep more
        precise type of actual for inlining whenever possible. In
        particular, do not switch to the formal type in GNATprove mode in
        some case where the GNAT backend might require it for visibility.

2017-01-20  Ed Schonberg  <schonberg@adacore.com>

        * sem_ch3.adb (Check_Non_Overridable_Aspects): An inherited
        aspect Implicit_Dereference can be inherited by a full view if
        the partial view has no discriminants, because there is no way
        to apply the aspect to the partial view.
        (Build_Derived_Record_Type): If derived type renames discriminants
        of the parent, the new discriminant inherits the aspect from
        the old one.
        * sem_ch4.adb (Analyze_Call): Handle properly a parameterless
        call through an access discriminant designating a subprogram.
        * sem_ch5.adb (Analyze_Assignment): (Analyze_Call): Handle
        properly a parameterless call through an access discriminant on
        the left-hand side of an assignment.
        * sem_res.adb (resolve): If an interpreation involves a
        discriminant with an implicit dereference and the expression is an
        entity, resolution takes place later in the appropriate routine.
        * sem_ch13.adb (Analyze_Aspect_Implicit_Dereference): Recognize
        access discriminants that designate a subprogram type.

2017-01-20  Pascal Obry  <obry@adacore.com>

        * a-locale.adb, a-locale.ads: Update Ada.Locales for RM 2012 COR:1:2016

2017-01-20  Yannick Moy  <moy@adacore.com>

        * sem_ch10.adb (Check_No_Elab_Code_All): Do not issue an error
        on implicitly with'ed units in GNATprove mode.
        * sinfo.ads (Implicit_With): Document use of flag for implicitly
        with'ed units in GNATprove mode.

2017-01-20  Ed Schonberg  <schonberg@adacore.com>

        * sem_cat.adb (Validate_Static_Object_Name): In a preelaborated
        unit Do not report an error on a non-static entity that appears
        in the context of a spec expression, such as an aspect expression.

2017-01-20  Hristian Kirtchev  <kirtchev@adacore.com>

        * einfo.adb: Flag298 now denotes Is_Underlying_Full_View.
        (Is_Underlying_Full_View): New routine.
        (Set_Is_Underlying_Full_View): New routine.
        (Write_Entity_Flags): Add an entry for Is_Underlying_Full_View.
        * einfo.ads Add new attribute Is_Underlying_Full_View.
        (Is_Underlying_Full_View): New routine along with pragma Inline.
        (Set_Is_Underlying_Full_View): New routine along with pragma Inline.
        * exp_util.adb (Build_DIC_Procedure_Body): Do not consider
        class-wide types and underlying full views. The first subtype
        is used as the working type for all Itypes, not just array base types.
        (Build_DIC_Procedure_Declaration): Do not consider
        class-wide types and underlying full views. The first subtype
        is used as the working type for all Itypes, not just array
        base types.
        * freeze.adb (Freeze_Entity): Inherit the freeze node of a full
        view or an underlying full view without clobbering the attributes
        of a previous freeze node.
        (Inherit_Freeze_Node): New routine.
        * sem_ch3.adb (Build_Derived_Private_Type): Mark an underlying
        full view as such.
        (Build_Underlying_Full_View): Mark an underlying full view as such.
        * sem_ch7.adb (Install_Private_Declarations): Mark an underlying
        full view as such.

2017-01-20  Yannick Moy  <moy@adacore.com>

        * sinfo.ads: Document lack of Do_Division_Check flag
        on float exponentiation.

2017-01-19  Javier Miranda  <miranda@adacore.com>

        * ghost.adb (Propagate_Ignored_Ghost_Code): Protect access to the
        identifier attribute of a block-statement node. Required to avoid
        assertion failure when building the new containers library.

2017-01-19  Bob Duff  <duff@adacore.com>

        * exp_ch3.adb: Update comment.

2017-01-19  Vincent Celier  <celier@adacore.com>

        * gprep.adb (Gnatprep): Parse the definition file without
        "replace in comments" even when switch -C is used.

2017-01-19  Justin Squirek  <squirek@adacore.com>

        * exp_ch9.adb (Is_Pure_Barrier): Create function
        Is_Count_Attribute to identify an expansion of the 'Count
        attribute.

2017-01-19  Ed Schonberg  <schonberg@adacore.com>

        * sem_ch5.adb (Analyze_Loop_Statement): In GNATprove mode the
        statements within an element iterator loop are only analyzed
        agter the loop is rewritten. Within a generic the analysis must
        be performed in any case to complete name capture.

2017-01-19  Bob Duff  <duff@adacore.com>

        * sem_prag.adb (Analyze_Pragma): Check for ignored pragmas first,
        before checking for unrecognized pragmas.
        Initialize Pname on its declarations; that's always good style.

2017-01-19  Claire Dross  <dross@adacore.com>

        * exp_ch7.adb (Build_Invariant_Procedure_Body): Semi-insert the
        body into the tree for GNATprove by setting its Parent field. The
        components invariants of composite types are not checked by
        the composite type's invariant procedure in GNATprove mode.
        (Build_Invariant_Procedure_Declaration): Semi-insert the
        declaration into the tree for GNATprove by setting its Parent
        field.
        * freeze.adb (Freeze_Arry_Type):In GNATprove mode, do not add
        the component invariants to the array type  invariant procedure
        so that the procedure can be used to  check the array type
        invariants if any.
        (Freeze_Record_Type): In GNATprove mode, do
        not add the component invariants to the record type  invariant
        procedure so that the procedure can be used to  check the record
        type invariants if any.

2017-01-19  Hristian Kirtchev  <kirtchev@adacore.com>

        * lib-xref-spark_specific.adb: Minor reformatting.
        * exp_ch7.adb (Add_Parent_Invariants): Do not process array types.

2017-01-19  Javier Miranda  <miranda@adacore.com>

        * exp_aggr.adb (Pass_Aggregate_To_Back_End): Renamed as
        Build_Back_End_Aggregate.
        (Generate_Aggregate_For_Derived_Type): Code cleanup.
        (Prepend_Stored_Values): Code cleanup.

2017-01-19  Ed Schonberg  <schonberg@adacore.com>

        * sem_ch6.adb (Analyze_Expression_Function): Check for an
        incomplete return type after attempting to freeze it, so that
        other freeze actiona are generated in the proper order.

2017-01-19  Ed Schonberg  <schonberg@adacore.com>

        * sem_aggr.adb (Resolve_Aggregate): If the type is a string
        type, ie. a type whose component is a character type, and the
        aggregate is positional, do not convert into a string literal
        if the index type is not an integer type, because the original
        type may be required in an enclosing operation.

2017-01-19  Bob Duff  <duff@adacore.com>

        * binde.adb, debug.adb: Enable new elaboration order algorithm
        by default. -dp switch reverts to the old algorithm.

2017-01-19  Hristian Kirtchev  <kirtchev@adacore.com>

        * sem_ch3.adb Add with and use clauses for Exp_Ch7.
        (Analyze_Declarations): Create the DIC and Invariant
        procedure bodies s after all freezing has taken place.
        (Build_Assertion_Bodies): New routine.
        * sem_ch7.adb Remove the with and use clauses for Exp_Ch7
        and Exp_Util.
        (Analyze_Package_Specification): Remove the
        generation of the DIC and Invariant procedure bodies. This is
        now done by Analyze_Declarations.
        * sem_disp.adb (Check_Dispatching_Operation): DIC and Invariant
        procedures are never treated as primitives.

2017-01-19  Yannick Moy  <moy@adacore.com>

        * frontend.adb: Analyze inlined bodies and check elaboration
        rules in GNATprove mode too.
        * sem_elab.adb (Delay_Element): Add Boolean component to save
        indication that call is in SPARK code.  (Check_Elab_Calls):
        Check elaboration rules in GNATprove mode, and correctly set
        the current value of SPARK_Mode.
        * lib-xref-spark_specific.adb
        (Add_SPARK_Xrefs): Simplify iteration over dereferences.

2017-01-19  Ed Schonberg  <schonberg@adacore.com>

        * exp_ch4.adb (Expand_Concatenate): Do no enable overflow
        checks on the expression for the high bound of concatenation
        when checks are disabled, to suppress warnings about potential
        constraint errors in restricted runtimes.

2017-01-19  Hristian Kirtchev  <kirtchev@adacore.com>

        * exp_ch3.adb (Expand_Freeze_Enumeration_Type): Mark the
        representation-to-position function as inlined.
        * sem_cat.adb (Set_Categorization_From_Scope): Do not modify
        the purity of an internally generated entity if it has been
        explicitly marked as pure for optimization purposes.
        * exp_aggr.adb: Minor reformatting.

2017-01-19  Javier Miranda  <miranda@adacore.com>

        * exp_ch6.adb (Expand_Call): Remove side effects on
        actuals that are allocators with qualified expression since the
        initialization of the object is performed by means of individual
        statements (and hence it must be done before the call).

2017-01-19  Ed Schonberg  <schonberg@adacore.com>

        * sem_ch3.adb (Analyze_Declarations): Minor reformatting.
        (Build_Derived_Enumeration_Type): If the derived type inherits a
        dynamic predicate from its parent, the bounds of the type must
        freeze because an explicit constraint is constructed for the
        type and the corresponding range is elaborated now.

2017-01-19  Arnaud Charlet  <charlet@adacore.com>

        * sem_attr.ads: minor fix of inconsistent casing in comment
        * lib-writ.ads: minor align comments in columns
        * sem_ch3.adb: Minor reformatting.
        * spark_xrefs.ads: minor fix typo in SPARK-related comment
        * table.ads: minor style fix in comment
        * lib-xref-spark_specific.adb
        (Add_SPARK_Xrefs): simplify processing of SPARK cross-references.
        * sem_ch12.adb: minor whitespace fix
        * freeze.adb: Add comment.
        * sem_util.adb (Unique_Name): for instances of
        generic subprograms ignore the name of the wrapper package.

2017-01-19  Javier Miranda  <miranda@adacore.com>

        * exp_aggr.adb (Resolve_Record_Aggregate):
        Factorize code needed for aggregates of limited and unlimited
        types in a new routine.
        (Pass_Aggregate_To_Back_End): New subprogram.

2017-01-19  Yannick Moy  <moy@adacore.com>

        * sinfo.adb (Pragma_Name): Only access up to Last_Pair of Pragma_Map.

2017-01-19  Ed Schonberg  <schonberg@adacore.com>

        * sem_ch4.ads, sem_ch4.adb (Try_Object_Operation): Make subprogram
        public, for use elsewhere.
        * sem_ch6.adb (Analyze_Procedure_Call): In SPARK_Mode and within
        an Inlined_body, recognize a call that uses object notation
        and has not been rewritten as a regular call because regular
        expansion has not taken place.

2017-01-19  Bob Duff  <duff@adacore.com>

        * checks.adb (Apply_Type_Conversion_Checks): Disable small optimization
        in case of generic formal discrete types, because it causes crashes in
        the compiler when built with assertions on.

2017-01-19  Hristian Kirtchev  <kirtchev@adacore.com>

        * lib-xref-spark_specific.adb, sem_util.adb, sem_util.ads,
        sem_ch4.adb, sem_ch8.adb, lib-xref.ads: Minor reformatting.

2017-01-19  Bob Duff  <duff@adacore.com>

        * bcheck.adb (Check_Consistent_Dynamic_Elaboration_Checking):
        Increment Warnings_Detected.  It was decrementing, which is
        wrong since we just issued a warning message.
        * binderr.ads (Errors_Detected, Warnings_Detected): Declare
        these variables to be of subtype Nat instead of Int, because
        they should never be negative.

2017-01-19  Javier Miranda  <miranda@adacore.com>

        * contracts.adb (Build_Postconditions_Procedure): Replace
        Generate_C_Code by Modify_Tree_For_C.
        * exp_aggr.adb (Build_Record_Aggr_Code, Expand_Array_Aggregate):
        Replace Generate_C_Code by Modify_Tree_For_C.
        * exp_attr.adb (Float_Valid, Is_GCC_Target): Replace Generate_C_Code by
        Modify_Tree_For_C.
        * exp_ch11.adb (Expand_N_Exception_Declaration): Replace
        Generate_C_Code by Modify_Tree_For_C.
        * exp_ch4.adb (Expand_Allocator_Expression): Replace
        Generate_C_Code by Modify_Tree_For_C.
        * exp_dbug.adb (Qualify_Entity_Name): Replace Generate_C_Code
        by Modify_Tree_For_C.
        * exp_util.adb (Remove_Side_Effects, Side_Effect_Free): Replace
        Generate_C_Code by Modify_Tree_For_C.
        * sem_res.adb (Resolve_Type_Conversion): Replace Generate_C_Code
        by Modify_Tree_For_C.
        * sinfo.ads (Modify_Tree_For_C): Adding documentation.

2017-01-19  Javier Miranda  <miranda@adacore.com>

        * sem_util.ads, sem_util.adb (Expression_Of_Expression_Function): New
        subprogram.
        (Is_Inlinable_Expression_Function): New subprogram.
        * exp_ch6.ads, exp_ch6.adb (Expression_Of_Expression_Function): Moved
        to Sem_Util.
        (Is_Inlinable_Expression_Function): Moved to Sem_Util.

2017-01-19  Ed Schonberg  <schonberg@adacore.com>

        * sem_ch4.adb (Diagnose_Call): Improve error message when a
        selected component has a prefix that might be interpreted
        as a parameterless function call, but none of the candidate
        interpretations is parameterless, and there is a hidden homonym
        of the prefix that is a package.
        * sem_ch8.adb (Find_Selected_Component): If the prefix might be
        interpreted as a parameterless function call and its analysis
        fails, do not call Analyze_Selected_Component.

2017-01-19  Steve Baird  <baird@adacore.com>

        * sem_util.ads: Add new Use_Full_View Boolean parameter to
        Get_Index_Bounds.
        * sem_util.adb (Get_Index_Bounds): replace calls to Scalar_Range with
        calls to a newly-defined Scalar_Range_Of_Right_View function.

2017-01-19  Arnaud Charlet  <charlet@adacore.com>

        * gnat1drv.adb: minor fix of unbalanced parens in comment
        * lib-xref.ads (Traverse_Compilation_Unit): declaration moved
        to visible part of the package to allow re-use in GNATprove.
        * lib-xref-spark_specific.adb (Traverse_Stub): routine refactored
        from repeated code of Traverse_Compilation_Unit.
        (Traverse_Declaration_Or_Statement): fixed detection of
        generic subprograms and packages; also, iteration over case
        statement alternatives rewritten to avoid testing if the first
        alternative is present (since it must be present due to Ada
        syntax restrictions).

2017-01-19  Hristian Kirtchev  <kirtchev@adacore.com>

        * exp_ch6.adb (Expand_N_Subprogram_Body): Mark the spec as
        returning by reference not just for subprogram body stubs,
        but for all subprogram cases.
        * sem_util.adb: Code reformatting.
        (Requires_Transient_Scope): Update the call to Results_Differ.
        (Results_Differ): Update the parameter profile and the associated
        comment on usage.

2017-01-19  Ed Schonberg  <schonberg@adacore.com>

        * sem_dim.adb (Analyze_Dimension): Analyze object declaration and
        identifier nodes that do not come from source, to handle properly
        dimensionality check within an inlined body which inclddes both
        original operands and rewritten operands. This removes spurious
        dimensionality errors in the presence of front-end inlining,
        as well as in SPARK mode.

2017-01-16  Jakub Jelinek  <jakub@redhat.com>

        PR driver/49726
        * gcc-interface/lang.opt (gant, gnatO, gnat): Add Driver flag.

2017-01-13  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

        * gcc-interface/Makefile.in (SPARC/Solaris): Fix typo.

2017-01-13  Arnaud Charlet  <charlet@adacore.com>

        * doc/gnat_ugn/getting_started_with_gnat.rst,
        doc/gnat_ugn/inline_assembler.rst,
        doc/gnat_ugn/building_executable_programs_with_gnat.rst,
        doc/gnat_ugn/elaboration_order_handling_in_gnat.rst,
        doc/gnat_ugn/about_this_guide.rst,
        doc/gnat_ugn/platform_specific_information.rst,
        doc/gnat_ugn/example_of_binder_output.rst,
        doc/gnat_ugn/gnat_and_program_execution.rst,
        doc/gnat_ugn/gnat_utility_programs.rst,
        doc/gnat_ugn/the_gnat_compilation_model.rst,
        doc/gnat_rm/implementation_defined_attributes.rst,
        doc/gnat_rm/compatibility_and_porting_guide.rst,
        doc/gnat_rm/standard_library_routines.rst,
        doc/gnat_rm/standard_and_implementation_defined_restrictions.rst,
        doc/gnat_rm/implementation_defined_pragmas.rst,
        doc/gnat_rm/the_gnat_library.rst,
        doc/gnat_rm/obsolescent_features.rst,
        doc/gnat_rm/about_this_guide.rst,
        doc/gnat_rm/the_implementation_of_standard_i_o.rst,
        doc/gnat_rm/implementation_of_ada_2012_features.rst,
        doc/gnat_rm/interfacing_to_other_languages.rst,
        doc/gnat_rm/implementation_defined_aspects.rst,
        doc/gnat_rm.rst: Update documentation.
        * gnat_rm.texi, gnat_ugn.texi: Regenerated.

2017-01-13  Ed Schonberg  <schonberg@adacore.com>

        * einfo.ads: minor grammar fixes in comment of Normalized_Position_Max.
        * scil_ll.adb: Minor style fix in comment.
        * sem_ch8.adb (Analyze_Expanded_Name): Perform dimension analysis
        even if entity is already set, because the node may be renalyzed
        after inlining transformations.

2017-01-13  Javier Miranda  <miranda@adacore.com>

        * sem_res.adb (Resolve_Call): Do not establish a transient scope
        for a call to inlinable expression function (since the call will
        be replaced by its returned object).
        * exp_ch6.ads (Is_Inlinable_Expression_Function): New subprogram.
        * exp_ch6.adb (Expression_Of_Expression_Function): New subprogram.
        (Expand_Call): For inlinable expression function call replace the
        call by its returned object.
        (Is_Inlinable_Expression_Function): New subprogram.

2017-01-13  Gary Dismukes  <dismukes@adacore.com>

        * checks.adb: Minor typo fix and reformatting.

2017-01-13  Javier Miranda  <miranda@adacore.com>

        * contracts.adb (Contract_Only_Subprograms): Remove formal.
        (Copy_Original_Specification): Removed.
        (Skip_Contract_Only_Subprogram): Move here checks previously
        located in the caller of this routine (to leave the code more clean).
        (Build_Contract_Only_Subprogram): Code cleanup.
        * scil_ll.ads, scil_ll.adb (Get_Contract_Only_Body_Name): Removed.
        (Get_Contract_Only_Missing_Body_Name): Removed.

2017-01-13  Javier Miranda  <miranda@adacore.com>

        * sem_ch6.adb (Cloned_Expression): New subprogram.
        (Freeze_Expr_Types): Complete previous patch since the expression
        of an expression-function may have iterators and loops with
        defining identifiers which, as part of the preanalysis of the
        expression, may be left decorated with itypes that will not be
        available in the tree passed to the backend.

2017-01-13  Ed Schonberg  <schonberg@adacore.com>

        * checks.adb (Apply_Type_Conversion_Checks): Optimize a type
        conversion to Integer of an expression that is an attribute
        reference 'Pos on an enumeration type.

2017-01-13  Bob Duff  <duff@adacore.com>

        * atree.ads: Minor comment fix.

2017-01-13  Justin Squirek  <squirek@adacore.com>

        * sem_ch6.adb (Check_Aggregate_Accessibility): Ignore function
        calls in accessibility check on return statement.

2017-01-13  Hristian Kirtchev  <kirtchev@adacore.com>

        * sem_ch6.adb (Analyze_Subprogram_Body_Helper):
        Ensure that the input body is a subprogram body before trying to
        determine whether it denoted an expression function.  Note that
        subprogram body stubs cannot denote expression functions.

2017-01-13  Gary Dismukes  <dismukes@adacore.com>

        * bindgen.adb, sem_ch6.adb, binde.adb, exp_ch3.adb: Minor reformatting
        and typo fixes.

2017-01-13  Javier Miranda  <miranda@adacore.com>

        * einfo.ads (Component_Bit_Offset): Fix documentation.
        * sem_ch13.adb (Check_Record_Representation_Clause): Skip check
        on record holes for components with unknown compile-time offsets.

2017-01-13  Bob Duff  <duff@adacore.com>

        * ali.ads, ali.adb (Static_Elaboration_Model_Used): Remove unused flag.
        * g-locfil.ads: Minor comment fix.

2017-01-13  Bob Duff  <duff@adacore.com>

        * binde.adb (Elab_New): New elaboration order algorithm
        that is expected to cause fewer ABE issues. This is a work in
        progress. The new algorithm is currently disabled, and can be
        enable by the -dp switch, or by modifying the Do_Old and Do_New
        etc. flags and rebuilding. Experimental code is included to
        compare the results of the old and new algorithms.
        * binde.ads: Use GNAT.Dynamic_Tables instead of Table, so we
        can have multiple of these tables, so the old and new algorithms
        can coexist.
        * bindgen.ads (Gen_Output_File): Pass Elab_Order as an 'in'
        parameter of type array. This avoids the global variable, and
        allows bounds checking (which is normally defeated by the tables
        packages). It also ensures that the Elab_Order is read-only
        to Bindgen.
        * bindgen.adb: Pass Elab_Order as an 'in' parameter to all
        subprograms that need it, as above.
        * debug.adb: Document new -dp switch. Modify doc of old -do
        switch.
        * gnatbind.adb (Gnatbind): Make use of new interfaces to Binde
        and Bindgen.  Move writing of closure (-R and -Ra switches)
        to Binde; that's more convenient.

2017-01-13  Ed Schonberg  <schonberg@adacore.com>

        * sem_ch6.adb (Analyze_Expression_Function): If the expression
        function is a completion, all entities referenced in the
        expression are frozen. As a consequence, a reference to an
        uncompleted private type from an enclosing scope is illegal.

2017-01-13  Javier Miranda  <miranda@adacore.com>

        * sem_ch6.adb (Freeze_Expr_Types): New subprogram.
        (Analyze_Subprogram_Body_Helper): At the occurrence of an
        expression function declaration that is a completion, its
        expression causes freezing (AI12-0103).

2017-01-13  Vadim Godunko  <godunko@adacore.com>

        * a-coinho-shared.adb: Fix memory leaks in Constant_Reference and
        Reference functions of Ada.Containers.Indefinite_Holders.

2017-01-13  Bob Duff  <duff@adacore.com>

        * s-os_lib.ads: Minor comment fixes.

2017-01-13  Hristian Kirtchev  <kirtchev@adacore.com>

        * exp_ch3.adb (Default_Initialize_Object): Do not default
        initialize an object when it is of a task type and restriction
        No_Tasking is in effect because the initialization is obsolete.
        * exp_ch9.adb (Build_Master_Entity): Do not generate a master when
        restriction No_Tasking is in effect.
        (Build_Master_Renaming): Do not rename a master when restriction
        No_Tasking is in effect.

2017-01-13  Ed Schonberg  <schonberg@adacore.com>

        * sem_aggr.adb (Resolve_Array_Aggregate): The code that verifies
        the legality of An others clause applies as well to a choice in
        an Iterated_component_ association.
        (Resolve_Iterated_Component_Association): An others choice
        is legal.
        * exp_aggr.adb (Aggr_Assignment_OK_For_Backend): An
        Iterated_Component_Association is not static.

2017-01-13  Hristian Kirtchev  <kirtchev@adacore.com>

        * exp_ch3.adb (Freeze_Type): Mark the Ghost mode as set in case
        control is passed to the expresion handler before the new mode
        is set.
        * sem_ch12.adb (Analyze_Package_Instantiation,
        Analyze_Subprogram_Instantiation): Mark the Ghost mode as set
        in case control is passed to the expresion handler before the
        new mode is set.

2017-01-13  Hristian Kirtchev  <kirtchev@adacore.com>

        * sem_aggr.adb, sem_ch3.adb, inline.adb, sem_util.adb, exp_ch4.adb,
        exp_aggr.adb: Minor reformatting.

2017-01-13  Gary Dismukes  <dismukes@adacore.com>

        * inline.adb: Minor reformatting and typo fix.

2017-01-13  Ed Schonberg  <schonberg@adacore.com>

        * sem_util.ads, sem_util.adb (Choice_List): Move function here
        from sem_aggr.adb, for use elsewhere.
        * sem_ch3.adb (Analyze_Object_Declaration): Use Choice_List.
        * sem_aggr.adb (Resolve_Array_Aggregate): Remove
        Iterated_Component_Present.
        * exp_aggr.adb: Use Choice_List throughout, to handle
        Iterated_Component_Associations.
        (Gen_Loop): Generate proper loop for an
        Iterated_Component_Association: loop variable has the identifier
        of the original association. Generate a loop even for a single
        component choice, in order to make loop parameter visible in
        expression.
        (Flatten): An Iterated_Component_Association is not static.

2017-01-13  Yannick Moy  <moy@adacore.com>

        * exp_ch4.adb (Expand_N_Op_Expon): Ensure that the value of
        float exponentiation for statically known small negative values
        is the reciprocal of the exponentiation for the opposite value
        of the exponent.
        * s-exnllf.adb (Exn_Float, Exn_Long_Float, Exn_Long_Long_Float):
        Ensure that the value of float exponentiation for negative values
        is the reciprocal of the exponentiation for the opposite value
        of the exponent.
        * inline.adb (Expand_Inlined_Call): Fix the count
        for the number of generated gotos.

2017-01-13  Yannick Moy  <moy@adacore.com>

        * inline.adb: Code cleanup.
        * sem_util.adb (Is_OK_Volatile_Context): Add
        expression in delay statement as OK for volatile context.

2017-01-13  Ed Schonberg  <schonberg@adacore.com>

        * sem_aggr.adb (Resolve_Array_Aggregate): In normal compilation
        mode a choice that is a subtype with a static predicate is
        replaced by the values it covers. This transformation must not
        be performed in ASIS mode, to preserve the source for analysis.

2017-01-13  Justin Squirek  <squirek@adacore.com>

        * nlists.ads: Correct minor typo.

2017-01-13  Gary Dismukes  <dismukes@adacore.com>

        * sem_ch13.adb: Minor reformatting and typo fix.

2017-01-13  Ed Schonberg  <schonberg@adacore.com>

        * par-ch4.adb (P_Aggregate_Or_Parent_Expr): An
        Iterated_Component_Association is a named association in an
        array aggregate.
        * sem_aggr.adb (Resolve_Iterated_Component_Association): New
        procedure, subsidiary of Resolve_Array_Aggregate, to analyze
        and resolve the discrete choices and the expression of the
        new construct.
        * sinfo.adb, sinfo.ads: In analogy with N_Component_Association,
        Loop_Actions and Box_Present are attributes of
        N_Iterated_Component_Association nodes. Box_Present is always
        False in this case.
        * sprint.adb (Sprint_Node): An Iterated_Component_Association
        has a Discrete_Choices list, as specified in the RM. A
        Component_Association for aggregate uses instead a Choices list.
        We have to live with this small inconsistency because the new
        construct also has a defining identifier, and there is no way
        to merge the two node structures.

2017-01-13  Yannick Moy  <moy@adacore.com>

        * inline.adb (Remove_Aspects_And_Pragmas): Add Unused to the
        list of pragmas to remove.  Remove pragmas from the list of
        statements in the body to inline.
        * namet.adb, namet.ads (Nam_In): New version with 12 parameters.

2017-01-13  Ed Schonberg  <schonberg@adacore.com>

        * sem_ch3.adb (Resolve_Aspects): New procedure, subsidiary of
        Analyze_Declarations, to analyze and resolve the expressions of
        aspect specifications in the current declarative list, so that
        the expressions have proper entity and type info.  This is needed
        for ASIS when there is no subsequent expansion to generate this
        semantic information.
        * sem_ch13.adb (Check_Aspect_At_End_Of_Declarations): Use Etype of
        original expression, to suppress cascaded errors when expression
        has been constant-folded.
        (Resolve_Aspect_Expressions, Resolve_Name): Preserve entities in
        ASIS mode, because there is no subsequent expansion to decorate
        the tree.

2017-01-13  Yannick Moy  <moy@adacore.com>

        * inline.adb, inline.ads (Call_Can_Be_Inlined_In_GNATprove_Mode):
        New function to detect when a call may be inlined or not in
        GNATprove mode.
        (Expand_Inlined_Call): Ensure that a temporary
        is always created in the cases where a type conversion may be
        needed on an input parameter in GNATprove mode, so that GNATprove
        sees the check to perform.
        * sem_res.adb (Resolve_Call): In GNATprove mode, skip inlining
        when not applicable due to actual requiring type conversion
        with possible check but no temporary value can be copied for
        GNATprove to see the check.

2017-01-13  Hristian Kirtchev  <kirtchev@adacore.com>

        * sem_aggr.adb, par_sco.adb, s-osprim-mingw.adb, exp_ch5.adb,
        exp_prag.adb, sem_ch3.adb, xr_tabls.adb, lib-xref-spark_specific.adb,
        layout.adb, sem_dist.adb, exp_spark.adb, exp_ch7.adb, gnatcmd.adb,
        exp_util.adb, prj-proc.adb, sem_aux.adb, comperr.adb, g-memdum.adb,
        exp_attr.adb, s-intman-solaris.adb, exp_ch9.adb, make.adb, live.adb,
        g-sercom-linux.adb, sem_dim.adb, mlib-prj.adb, s-intman-posix.adb,
        sem_ch9.adb, sem_ch10.adb, prep.adb, einfo.adb, scng.adb, checks.adb,
        prj-strt.adb, sem_prag.adb, eval_fat.adb, sem_ch12.adb, sem.adb,
        a-numaux-x86.adb, a-stwifi.adb, i-cobol.adb, prj.adb,
        get_spark_xrefs.adb, s-tasini.adb, rtsfind.adb, freeze.adb,
        g-arrspl.adb, par-ch4.adb, sem_util.adb, sem_res.adb, expander.adb,
        sem_attr.adb, exp_dbug.adb, prj-pp.adb, a-stzfix.adb, s-interr.adb,
        s-wchcnv.adb, switch-m.adb, gnat1drv.adb, sinput-l.adb, stylesw.adb,
        contracts.adb, s-intman-android.adb, g-expect.adb, exp_ch4.adb,
        g-comlin.adb, errout.adb, sinput.adb, s-exctra.adb, repinfo.adb,
        g-spipat.adb, g-debpoo.adb, exp_ch6.adb, sem_ch4.adb, exp_ch13.adb,
        a-wtedit.adb, validsw.adb, pprint.adb, widechar.adb, makeutl.adb,
        ali.adb, set_targ.adb, sem_mech.adb, sem_ch6.adb, gnatdll.adb,
        get_scos.adb, g-pehage.adb, s-tratas-default.adb, gnatbind.adb,
        prj-dect.adb, g-socthi-mingw.adb, par-prag.adb, prj-nmsc.adb,
        exp_disp.adb, par-ch12.adb, binde.adb, sem_ch8.adb,
        s-tfsetr-default.adb, s-regexp.adb, gprep.adb, s-tpobop.adb,
        a-teioed.adb, sem_warn.adb, sem_eval.adb, g-awk.adb, s-io.adb,
        a-ztedit.adb, xoscons.adb, exp_intr.adb, sem_cat.adb, sprint.adb,
        g-socket.adb, exp_dist.adb, sem_ch13.adb, s-tfsetr-vxworks.adb,
        par-ch3.adb, treepr.adb, g-forstr.adb, g-catiio.adb, par-ch5.adb,
        uname.adb, osint.adb, exp_ch3.adb, prj-env.adb, a-strfix.adb,
        a-stzsup.adb, prj-tree.adb, s-fileio.adb: Update all eligible case
        statements to reflect the new style for case alternatives. Various
        code clean up and reformatting.

2017-01-13  Gary Dismukes  <dismukes@adacore.com>

        * exp_util.adb: Minor reformatting.

2017-01-13  Yannick Moy  <moy@adacore.com>

        * exp_spark.adb: Code cleanup.
        * sem_ch9.adb (Analyze_Delay_Until): Resolve
        expression so that calls are identified as such inside delay
        until.

2017-01-13  Ed Schonberg  <schonberg@adacore.com>

        * exp_util.adb (Insert_Actions): Handle Iterated_Component_Association.
        * par-ch3.adb (P_Discrete_Choice_List): An
        Iterated_Component_Association is an array aggregate component.
        * par-ch4.adb (P_Iterated_Component_Association): New procedure.
        (Is_Quantified_Expression): New function that performs a lookahead
        to distinguish quantified expressions from iterated component
        associations.
        (P_Aggregate_Or_Paren_Expr): Recognize iterated component
        associations.
        (P_Unparen_Cond_Case_Quant_Expression, P_Primary): Ditto.
        * sem.adb (Analyze): Handle Iterated_Component_Association.
        * sem_aggr.adb (Resolve_Array_Aggregate): Dummy handling of iterated
        component associations.
        * sinfo.ads, sinfo.adb: Entries for for
        N_Iterated_Component_Association and its fields.
        * sprint.adb (Sprint_Node_Actual): Handle
        N_Iterated_Component_Association.

2017-01-13  Justin Squirek  <squirek@adacore.com>

        * sem_ch12.adb (Analyze_Package_Instantiation): Move disabiling
        of the style check until after preanalysis of acutals.

2017-01-13  Yannick Moy  <moy@adacore.com>

        * sem_ch13.adb: Minor reformatting.
        * par-ch11.adb: minor style fix in whitespace
        * gnatbind.adb (Gnatbind): Scope of Std_Lib_File
        reduced to Add_Artificial_ALI_File; style fix in declaration of
        Text; grammar fix in comment.
        * osint-c.adb (Read_Library_Info): strip trailing NUL from result.
        * freeze.adb: Cleanup to pass pragma instead of
        expression to call.
        * exp_spark.adb (Expand_SPARK_Attribute_Reference): New procedure to
        replace System'To_Address by equivalent call.

2017-01-13  Arnaud Charlet  <charlet@adacore.com>

        * bindusg.adb: Improve usage output for -f switch.

2017-01-13  Hristian Kirtchev  <kirtchev@adacore.com>

        * frontend.adb, freeze.adb, sem_res.adb, sem_attr.adb, sem_ch8.adb:
        Minor reformatting.

2017-01-13  Ed Schonberg  <schonberg@adacore.com>

        * sem_ch13.adb (Is_Predicate_Static): Following the intent of the RM,
        treat comparisons on strings as legal in a Static_Predicate.
        (Is_Predicate_Static, Is_Type_Ref): Predicate also returns true on
        a function call that is the expansion of a string comparison.The
        function call is built when compiling the corresponding predicate
        function, but the expression has been found legal as a static
        predicate during earlier analysis.
        * sem_eval.adb (Real_Or_String_Static_Predicate_Matches): Handle
        properly a function call that is the expansion of a string
        comparison operation, in order to recover the Static_Predicate
        expression and apply it to a static argument when needed.

2017-01-13  Tristan Gingold  <gingold@adacore.com>

        * s-mmap.adb, s-mmap.ads (Open_Read_No_Exception): New function.
        (Open_Read): Re-implement using Open_Read_No_Exception.
        (Open_Write): Raise exception in case of error.
        * s-mmosin-mingw.adb (Open_Common): Do not raise exception.
        * s-mmosin-unix.adb (Open_Read, Open_Write): Do not
        reaise exception.
        * s-mmosin-mingw.ads, s-mmosin-unix.ads (Open_Read): Adjust comment.

2017-01-13  Yannick Moy  <moy@adacore.com>

        * checks.adb: Code cleanup.

2017-01-13  Yannick Moy  <moy@adacore.com>

        * freeze.adb (Check_Inherited_Conditions): Use analyzed pragma
        expression instead of unanalyzed aspect expression for checking
        the validity of inheriting an operation. Also copy the expression
        being passing it to Build_Class_Wide_Expression, as this call
        modifies its argument.
        * sem_util.ads Fix comment to reference correct function name
        New_Copy_Tree.

2017-01-13  Javier Miranda  <miranda@adacore.com>

        * sem_res.adb (Resolve_Generalized_Indexing): Compiling in ASIS mode,
        when we propagate information about the indexes back to the original
        indexing mode and the prefix of the index is a function call, do not
        remove any parameter from such call.

2017-01-13  Gary Dismukes  <dismukes@adacore.com>

        * exp_ch6.ads (Needs_BIP_Finalization_Master): Update comment.
        * exp_ch6.adb (Needs_BIP_Finalization_Master): Return True for
        a build-in-place function whose result type is tagged.

2017-01-13  Yannick Moy  <moy@adacore.com>

        * sem_ch8.adb (Analyze_Subprogram_Renaming.Build_Class_Wide_Wrapper):
        Do not generate a wrapper when the only candidate is a class-wide
        subprogram.
        (Analyze_Subprogram_Renaming): Do not freeze the renaming or renamed
        inside a generic context.

2017-01-13  Hristian Kirtchev  <kirtchev@adacore.com>

        * exp_util.adb (Add_Inherited_Tagged_DIC):
        Pass the object parameters of both the parent and the derived
        type DIC procedure to the reference replacement circuitry.
        (Find_DIC_Type): Modify the circuitry to present the partial
        view of a private type in case the private type defines its own
        DIC pragma.
        (Replace_Object_And_Primitive_References): Add two
        optional formal parameters.  Update the comment on usage. Update
        the replacement of references to object parameters.

2017-01-13  Gary Dismukes  <dismukes@adacore.com>

        * einfo.adb, sem_ch6.adb, atree.adb: Minor reformatting and typo fix.

2017-01-13  Ed Schonberg  <schonberg@adacore.com>

        * sem_res.adb (Resolve_Actuals): Apply Scalar_Range_Check to
        an out parameter that is a type conversion, independently of th
        range check that may apply to the expression of the conversion,
        for use in GNATProve.

2017-01-13  Yannick Moy  <moy@adacore.com>

        * gnat1drv.adb (Gnat1drv): Move the implicit with for System in
        GNATprove_Mode here to Frontend.
        * frontend.adb (Frontend): Move the implicit with for System
        in GNATprove_Mode here as it ismore correct this way; the old
        place only worked by chance, since there were no overloaded names.
        * rtsfind.ads (RE_Id, RE_Unit_Table): Add RE_Tasking_State.
        * sem_attr.adb (Analyze_Attribute): In GNATprove_Mode, for the
        four attributes identified in SRM 9(18), add an implicit with
        to Ada.Task_Identification.
        * sem_ch8.adb (Analyze_Subprogram_Renaming.Build_Class_Wide_Wrapper):
        Deal specially with the wrapper introduced for AI05-0071 in GNATprove
        mode.
        * checks.adb (Apply_Discriminant_Check,
        Apply_Selected_Length_Checks, Apply_Selected_Range_Checks):
        In GNATprove mode, we do not apply the checks, but we still
        analyze the expression to possibly issue errors on SPARK
        code when a run-time error can be detected at compile time.
        (Selected_Length_Checks, Selected_Range_Checks): Perform analysis
        in GNATprove mode.

2017-01-13  Hristian Kirtchev  <kirtchev@adacore.com>

        * expander.adb (Expand): Add a warning about using return
        statements in Ghost management code.
        * exp_ch3.adb (Freeze_Type): Add a warning about using return
        statements in Ghost management code.
        * exp_ch7.adb (Build_Invariant_Procedure_Body,
        Build_Invariant_Procedure_Declaration): Add a warning about
        using return statements in Ghost management code.
        * exp_disp.adb (Make_DT): Add a warning about using return
        statements in Ghost management code.
        * exp_util.adb (Build_DIC_Procedure_Body,
        Build_DIC_Procedure_Declaration, Make_Predicated_Call): Add a
        warning about using return statements in Ghost management code.
        * freeze.adb (Freeze_Entity): Add a warning about using return
        statements in Ghost management code.
        * sem.adb (Analyze, Do_Analyze): Add a warning about using return
        statements in Ghost management code.
        * sem_ch3.adb (Analyze_Object_Declaration, Process_Full_View): Add
        a warning about using return statements in Ghost management code.
        * sem_ch5.adb (Analyze_Assignment): Add a warning about using
        return statements in Ghost management code.
        * sem_ch6.adb (Analyze_Procedure_Call,
        Analyze_Subprogram_Body_Helper): Add a warning about using return
        statements in Ghost management code.
        * sem_ch7.adb (Analyze_Package_Body_Helper): Add a warning about
        using return statements in Ghost management code.
        * sem_ch12.adb (Analyze_Package_Instantiation,
        Analyze_Subprogram_Instantiation, Instantiate_Package_Body,
        Instantiate_Subprogram_Body): Add a warning about using return
        statements in Ghost management code.
        * sem_ch13.adb (Build_Predicate_Functions,
        Build_Predicate_Function_Declarations): Add a warning about
        using return statements in Ghost management code.
        * sem_prag.adb (Analyze_Contract_Cases_In_Decl_Part,
        Analyze_Initial_Condition_In_Decl_Part, Analyze_Pragma,
        Analyze_Pre_Post_Condition_In_Decl_Part):  Add a warning about
        using return statements in Ghost management code.

2017-01-13  Tristan Gingold  <gingold@adacore.com>

        * s-mmosin-mingw.adb: Fix pragma import.

2017-01-13  Arnaud Charlet  <charlet@adacore.com>

        * gnat1drv.adb (Adjust_Global_Switches): Ignore -gnateE in
        codepeer mode.

2017-01-13  Hristian Kirtchev  <kirtchev@adacore.com>

        * atree.adb (Allocate_Initialize_Node): A newly created node is
        no longer marked as Ghost at this level.
        (Mark_New_Ghost_Node): New routine.
        (New_Copy): Mark the copy as Ghost.
        (New_Entity): Mark the entity as Ghost.
        (New_Node): Mark the node as Ghost.
        * einfo.adb (Is_Checked_Ghost_Entity): This attribute can now
        apply to unanalyzed entities.
        (Is_Ignored_Ghost_Entity): This attribute can now apply to unanalyzed
        entities.
        (Set_Is_Checked_Ghost_Entity): This attribute now
        applies to all entities as well as unanalyzed entities.
        (Set_Is_Ignored_Ghost_Entity): This attribute now applies to
        all entities as well as unanalyzed entities.
        * expander.adb Add with and use clauses for Ghost.
        (Expand): Install and revert the Ghost region associated with the node
        being expanded.
        * exp_ch3.adb (Expand_Freeze_Array_Type): Remove all Ghost-related code.
        (Expand_Freeze_Class_Wide_Type): Remoe all Ghost-related code.
        (Expand_Freeze_Enumeration_Type): Remove all Ghost-related code.
        (Expand_Freeze_Record_Type): Remove all Ghost-related code.
        (Freeze_Type): Install and revert the Ghost region associated
        with the type being frozen.
        * exp_ch5.adb Remove with and use clauses for Ghost.
        (Expand_N_Assignment_Statement): Remove all Ghost-related code.
        * exp_ch6.adb Remove with and use clauses for Ghost.
        (Expand_N_Procedure_Call_Statement): Remove all Ghost-relatd code.
        (Expand_N_Subprogram_Body): Remove all Ghost-related code.
        * exp_ch7.adb (Build_Invariant_Procedure_Body): Install and revert the
        Ghost region of the working type.
        (Build_Invariant_Procedure_Declaration): Install and revert
        the Ghost region of the working type.
        (Expand_N_Package_Body): Remove all Ghost-related code.
        * exp_ch8.adb Remove with and use clauses for Ghost.
        (Expand_N_Exception_Renaming_Declaration): Remove all Ghost-related
        code.
        (Expand_N_Object_Renaming_Declaration): Remove all Ghost-related code.
        (Expand_N_Package_Renaming_Declaration): Remove all Ghost-related code.
        (Expand_N_Subprogram_Renaming_Declaration): Remove all Ghost-related
        code.
        * exp_ch13.adb Remove with and use clauses for Ghost.
        (Expand_N_Freeze_Entity): Remove all Ghost-related code.
        * exp_disp.adb (Make_DT): Install and revert the Ghost region of
        the tagged type. Move the generation of various entities within
        the Ghost region of the type.
        * exp_prag.adb Remove with and use clauses for Ghost.
        (Expand_Pragma_Check): Remove all Ghost-related code.
        (Expand_Pragma_Contract_Cases): Remove all Ghost-related code.
        (Expand_Pragma_Initial_Condition): Remove all Ghost-related code.
        (Expand_Pragma_Loop_Variant): Remove all Ghost-related code.
        * exp_util.adb (Build_DIC_Procedure_Body): Install
        and revert the Ghost region of the working types.
        (Build_DIC_Procedure_Declaration): Install and revert the
        Ghost region of the working type.
        (Make_Invariant_Call): Install and revert the Ghost region of the
        associated type.
        (Make_Predicate_Call): Reimplemented. Install and revert the
        Ghost region of the associated type.
        * freeze.adb (Freeze_Entity): Install and revert the Ghost region
        of the entity being frozen.
        (New_Freeze_Node): Removed.
        * ghost.adb Remove with and use clauses for Opt.
        (Check_Ghost_Completion): Update the parameter profile
        and all references to formal parameters.
        (Ghost_Entity): Update the comment on usage.
        (Install_Ghost_Mode): New routines.
        (Is_Ghost_Assignment): New routine.
        (Is_Ghost_Declaration): New routine.
        (Is_Ghost_Pragma): New routine.
        (Is_Ghost_Procedure_Call): New routine.
        (Is_Ghost_Renaming): Removed.
        (Is_OK_Declaration): Reimplemented.
        (Is_OK_Pragma): Reimplemented.
        (Is_OK_Statement): Reimplemented.
        (Is_Subject_To_Ghost): Update the comment on usage.
        (Mark_And_Set_Ghost_Assignment): New routine.
        (Mark_And_Set_Ghost_Body): New routine.
        (Mark_And_Set_Ghost_Completion): New routine.
        (Mark_And_Set_Ghost_Declaration): New routine.
        (Mark_And_Set_Ghost_Instantiation): New routine.
        (Mark_And_Set_Ghost_Procedure_Call): New routine.
        (Mark_Full_View_As_Ghost): Removed.
        (Mark_Ghost_Declaration_Or_Body): New routine.
        (Mark_Ghost_Pragma): New routine.
        (Mark_Ghost_Renaming): New routine.
        (Mark_Pragma_As_Ghost): Removed.
        (Mark_Renaming_As_Ghost): Removed.
        (Propagate_Ignored_Ghost_Code): Update the comment on usage.
        (Prune_Node): Freeze nodes no longer need special pruning, they
        are processed by the general ignored Ghost code mechanism.
        (Restore_Ghost_Mode): New routine.
        (Set_Ghost_Mode): Reimplemented.
        (Set_Ghost_Mode_From_Entity): Removed.
        * ghost.ads Add with and use clauses for Ghost.
        (Check_Ghost_Completion): Update the parameter profile
        along with the comment on usage.
        (Install_Ghost_Mode): New routine.
        (Is_Ghost_Assignment): New routine.
        (Is_Ghost_Declaration): New routine.
        (Is_Ghost_Pragma): New routine.
        (Is_Ghost_Procedure_Call): New routine.
        (Mark_And_Set_Ghost_Assignment): New routine.
        (Mark_And_Set_Ghost_Body): New routine.
        (Mark_And_Set_Ghost_Completion): New routine.
        (Mark_And_Set_Ghost_Declaration): New routine.
        (Mark_And_Set_Ghost_Instantiation): New routine.
        (Mark_And_Set_Ghost_Procedure_Call): New routine.
        (Mark_Full_View_As_Ghost): Removed.
        (Mark_Ghost_Pragma): New routine.
        (Mark_Ghost_Renaming): New routine.
        (Mark_Pragma_As_Ghost): Removed.
        (Mark_Renaming_As_Ghost): Removed.
        (Restore_Ghost_Mode): New routine.
        (Set_Ghost_Mode): Redefined.
        (Set_Ghost_Mode_From_Entity): Removed.
        * sem.adb (Analyze): Install and revert the Ghost region of the
        node being analyzed.
        (Do_Analyze): Change the way a clean Ghost
        region is installed and reverted.
        * sem_ch3.adb (Analyze_Full_Type_Declaration): Remove
        all Ghost-related code.
        (Analyze_Incomplete_Type_Decl): Remove all Ghost-related code.
        (Analyze_Number_Declaration): Remove all Ghost-related code.
        (Analyze_Object_Declaration): Install and revert the Ghost region of
        a deferred object declaration's completion.
        (Array_Type_Declaration): Remove all Ghost-related code.
        (Build_Derived_Type): Update the comment on
        the propagation of Ghost attributes from a parent to a derived type.
        (Derive_Subprogram): Remove all Ghost-related code.
        (Make_Class_Wide_Type): Remove all Ghost-related code.
        (Make_Implicit_Base): Remove all Ghost-related code.
        (Process_Full_View): Install and revert the Ghost region of
        the partial view.  There is no longer need to check the Ghost
        completion here.
        * sem_ch5.adb (Analyze_Assignment): Install and revert the Ghost
        region of the left hand side.
        * sem_ch6.adb (Analyze_Abstract_Subprogram_Declaration): Remove
        all Ghost-related code.
        (Analyze_Expression_Function): Remove all Ghost-related code.
        (Analyze_Generic_Subprogram_Body): Remove all Ghost-related code.
        (Analyze_Procedure_Call): Install and revert the Ghost region of
        the procedure being called.
        (Analyze_Subprogram_Body_Helper): Install and revert the Ghost
        region of the spec or body.
        (Analyze_Subprogram_Declaration): Remove all Ghost-related code.
        (Build_Subprogram_Declaration): Remove all Ghost-related code.
        (Find_Corresponding_Spec): Remove all Ghost-related code.
        (Process_Formals): Remove all Ghost-related code.
        * sem_ch7.adb (Analyze_Package_Body_Helper): Install and revert
        the Ghost region of the spec.
        (Analyze_Package_Declaration): Remove all Ghost-related code.
        * sem_ch8.adb (Analyze_Exception_Renaming): Mark a renaming as
        Ghost when it aliases a Ghost entity.
        (Analyze_Generic_Renaming): Mark a renaming as Ghost when it aliases
        a Ghost entity.
        (Analyze_Object_Renaming): Mark a renaming as Ghost when
        it aliases a Ghost entity.
        (Analyze_Package_Renaming): Mark a renaming as Ghost when it aliases
        a Ghost entity.
        (Analyze_Subprogram_Renaming): Mark a renaming as Ghost when it
        aliases a Ghost entity.
        * sem_ch11.adb Remove with and use clauses for Ghost.
        (Analyze_Exception_Declaration): Remove all Ghost-related code.
        * sem_ch12.adb (Analyze_Generic_Package_Declaration): Remove all
        Ghost-related code.
        (Analyze_Generic_Subprogram_Declaration): Remove all Ghost-related
        code.
        (Analyze_Package_Instantiation): Install and revert the Ghost region
        of the package instantiation.
        (Analyze_Subprogram_Instantiation): Install
        and revert the Ghost region of the subprogram instantiation.
        (Instantiate_Package_Body): Code clean up. Install and revert the
        Ghost region of the package body.
        (Instantiate_Subprogram_Body): Code clean up. Install and revert the
        Ghost region of the subprogram body.
        * sem_ch13.adb (Build_Predicate_Functions): Install
        and revert the Ghost region of the related type.
        (Build_Predicate_Function_Declaration): Code clean up. Install
        and rever the Ghost region of the related type.
        * sem_prag.adb (Analyze_Contract_Cases_In_Decl_Part):
        Install and revert the Ghost region of the pragma.
        (Analyze_Initial_Condition_In_Decl_Part): Install and revert the
        Ghost region of the pragma.
        (Analyze_Pragma): Install and revert the Ghost region of various
        pragmas.  Mark a pragma as Ghost when it is related to a Ghost entity
        or encloses a Ghost entity.
        (Analyze_Pre_Post_Condition): Install and revert the Ghost
        region of the pragma.
        (Analyze_Pre_Post_Condition_In_Decl_Part): Install and revert the
        Ghost region of the pragma.
        * sem_res.adb (Resolve): Remove all Ghost-related code.
        * sem_util.adb (Is_Declaration): Reimplemented.
        (Is_Declaration_Other_Than_Renaming): New routine.
        * sem_util.ads (Is_Declaration_Other_Than_Renaming): New routine.
        * sinfo.adb (Is_Checked_Ghost_Pragma): New routine.
        (Is_Ghost_Pragma): Removed.
        (Is_Ignored_Ghost_Pragma): New routine.
        (Set_Is_Checked_Ghost_Pragma): New routine.
        (Set_Is_Ghost_Pragma): Removed.
        (Set_Is_Ignored_Ghost_Pragma): New routine.
        * sinfo.ads: Update the documentation on Ghost mode and
        Ghost regions.  New attributes Is_Checked_Ghost_Pragma
        and Is_Ignored_Ghost_Pragma along with usages in nodes.
        Remove attribute Is_Ghost_Pragma along with usages in nodes.
        (Is_Checked_Ghost_Pragma): New routine along with pragma Inline.
        (Is_Ghost_Pragma): Removed along with pragma Inline.
        (Is_Ignored_Ghost_Pragma): New routine along with pragma Inline.
        (Set_Is_Checked_Ghost_Pragma): New routine along with pragma Inline.
        (Set_Is_Ghost_Pragma): Removed along with pragma Inline.
        (Set_Is_Ignored_Ghost_Pragma): New routine along with pragma Inline.

2017-01-12  Tristan Gingold  <gingold@adacore.com>

        * s-mmap.ads, s-mmap.adb, s-mmosin-unix.ads, s-mmosin-unix.adb,
        s-mmauni-long.ads, s-mmosin-mingw.ads, s-mmosin-mingw.adb: New files.

2017-01-12  Yannick Moy  <moy@adacore.com>

        * errout.adb, errout.ads (Initialize): Factor common treatment
        in Reset_Warnings.
        (Reset_Warnings): New procedure to reset counts related to warnings.
        (Record_Compilation_Errors): New variable to store the presence of an
        error, used in gnat2why to allow changing the Warning_Mode.
        (Compilation_Errors): Use new variable Record_Compilation_Errors to
        store the presence of an error.

2017-01-12  Javier Miranda  <miranda@adacore.com>

        * sem_ch13.adb (Analyze_Aspect_Specifications):
        For Interrupt_Handler and Attach_ Handler aspects, decorate the
        internally built reference to the protected procedure as coming
        from sources and force its analysis.

2017-01-12  Ed Schonberg  <schonberg@adacore.com>

        * sem_ch3.adb (Build_Derived_Type): For a scalar derived type,
        inherit predicates if any from the first_subtype of the parent,
        not from the anonymous parent type.
        * sem_eval.adb (Is_Static_Subtype): A type that inherits a dynamic
        predicate is not a static subtype.

2017-01-12  Gary Dismukes  <dismukes@adacore.com>

        * freeze.adb (Check_Suspicious_Convention): New procedure
        performing a warning check on discriminated record types with
        convention C or C++. Factored out of procedure Freeze_Record_Type,
        and changed to only apply to base types (to avoid spurious
        warnings on subtypes). Minor improvement of warning messages
        to refer to discriminated rather than variant record types.
        (Freeze_Record_Type): Remove code for performing a suspicious
        convention check.
        (Freeze_Entity): Only call Freeze_Record_Type
        on types that aren't declared within any enclosing generic units
        (rather than just excluding the type when the innermost scope
        is generic). Call Check_Suspicious_Convention whether or not
        the type is declared within a generic unit.
        * sem_ch8.adb (In_Generic_Scope): Move this function to Sem_Util.
        * sem_util.ads, sem_util.adb (In_Generic_Scope): New function (moved
        from Sem_Ch8).

2017-01-12  Tristan Gingold  <gingold@adacore.com>

        * sysdep.c, adaint.c, rtinit.c, ming32.h:
        (__gnat_current_codepage): Renamed from CurrentCodePage
        (__gnat_current_ccs_encoding): Renamed from CurrentCCSEncoding

2017-01-12  Ed Schonberg  <schonberg@adacore.com>

        * sem_ch6.adb (Fully_Conformant_Expressions): Handle properly
        quantified expressions, following AI12-050: the loop parameters
        of two quantified expressions are conformant if they have the
        same identifier.

2017-01-12  Arnaud Charlet  <charlet@adacore.com>

        * gcc-interface/Makefile.in: Clean up VxWorks targets.

2017-01-12  Ed Schonberg  <schonberg@adacore.com>

        * sem_attr.adb (Analyze_Attribute_Reference, case Loop_Entry):
        Hnadle properly the attribute reference when it appears as part
        of an expression in another loop aspect.

2017-01-12  Ed Schonberg  <schonberg@adacore.com>

        * exp_ch3.adb (Check_Predicated_Discriminant): New procedure,
        subsidiary of Build_Initialization_Call, to complete generation
        of predicate checks on discriminants whose (sub)types have
        predicates, and to add checks on variants that do not have an
        others clause.
        * sem_util.adb (Gather_Components): A missing Others alternative is
        not an error when the type of the discriminant is a static predicate
        (and coverage has been checked when analyzing the case statement). A
        runtime check is generated to verify that a given discriminant
        satisfies the predicate (RM 3.8.1. (21.1/2)).

2017-01-12  Yannick Moy  <moy@adacore.com>

        * gnat1drv.adb (Adjust_Global_Switches): Only
        perform checking of exception mechanism when generating code.

2017-01-12  Justin Squirek  <squirek@adacore.com>

        * exp_ch7.adb (Add_Type_Invariants, Process_Array_Component):
        Remove handling of access component with invariant.
        (Build_Invariant_Procedure_Declaration): Remove return on class
        wide type.
        * freeze.adb (Freeze_Array_Type, Freeze_Record_Type): Remove
        conditional exception for component or array so Has_Own_Invariants
        flag is not falsly set.
        * sem_ch3.adb (Make_Class_Wide_Type): Initialize copy of class
        wide type to have no invariant flags.

2017-01-12  Hristian Kirtchev  <kirtchev@adacore.com>

        * exp_ch9.adb, sem_prag.adb, s-tassta.adb, sem_util.adb, s-tarest.adb,
        sem_ch13.adb: Minor reformatting.

2017-01-12  Hristian Kirtchev  <kirtchev@adacore.com>

        * exp_aggr.adb (Build_Record_Aggr_Code): Guard against a missing
        adjustment primitive when the ancestor type was not properly frozen.
        (Gen_Assign): Guard against a missing initialization
        primitive when the component type was not properly frozen.
        (Initialize_Array_Component): Guard against a missing adjustment
        primitive when the component type was not properly frozen.
        (Initialize_Record_Component): Guard against a missing adjustment
        primitive when the component type was not properly frozen.
        (Process_Transient_Component_Completion): The transient object may
        not be finalized when its associated type was not properly frozen.
        * exp_ch3.adb (Build_Assignment): Guard against a missing
        adjustment primitive when the component type was not properly frozen.
        (Build_Initialization_Call): Guard against a missing
        initialization primitive when the associated type was not properly
        frozen.
        (Expand_N_Object_Declaration): Guard against a missing
        adjustment primitive when the base type was not properly frozen.
        (Predefined_Primitive_Bodies): Create an empty Deep_Adjust
        body when there is no adjustment primitive available. Create an
        empty Deep_Finalize body when there is no finalization primitive
        available.
        * exp_ch4.adb (Apply_Accessibility_Check): Guard against a
        missing finalization primitive when the designated type was
        not properly frozen.
        (Expand_N_Allocator): Guard against a missing initialization primitive
        when the designated type was not properly frozen.
        * exp_ch5.adb (Make_Tag_Ctrl_Assignment): Add the adjustment call
        only when the corresponding adjustment primitive is available.
        * exp_ch7.adb (Build_Adjust_Or_Finalize_Statements): Generate the
        adjustment/finalization statements only when there is an available
        primitive to carry out the action.
        (Build_Initialize_Statements): Generate the initialization/finalization
        statements only when there is an available primitive to carry out the
        action.
        (Make_Adjust_Call): Do not generate a call when the underlying
        type is not present due to a possible missing full view.
        (Make_Final_Call): Do not generate a call when the underlying
        type is not present due to a possible missing full view.
        (Make_Finalize_Address_Stmts): Generate an empty body when the
        designated type lacks a finalization primitive.
        (Make_Init_Call): Do not generate a call when the underlying type is
        not present due to a possible missing full view.
        (Process_Component_For_Adjust): Add the adjustment call only when the
        corresponding adjustment primitive is available.
        (Process_Component_For_Finalize): Add the finalization call only when
        the corresponding finalization primitive is available.
        (Process_Object_Declaration): Use a null statement to emulate a
        missing call to the finalization primitive of the object type.
        * exp_ch7.ads (Make_Adjust_Call): Update the comment on usage.
        (Make_Final_Call): Update the comment on usage.
        (Make_Init_Call): Update the comment on usage.
        * exp_util.adb (Build_Transient_Object_Statements): Code reformatting.

2017-01-12  Arnaud Charlet  <charlet@adacore.com>

        * einfo.ads: Update documentation of Address_Taken.
        * sem_attr.adb (Analyze_Access_Attribute, Resolve_Attribute
        [Access_Attribute]): Only consider 'Access/'Unchecked_Access
        for subprograms when setting Address_Taken flag.

2017-01-12  Patrick Bernardi  <bernardi@adacore.com>

        * sem_ch10.adb (Analyze_With_Clause): Removed code that turned
        Configurable_Run_Time_Mode off when analysing with'ed predefined
        libraries.

2017-01-12  Gary Dismukes  <dismukes@adacore.com>

        * sem_prag.adb: Minor reformatting.
        * sem_util.adb (Unique_Entity): fix result for
        bodies of entry families.

2017-01-12  Justin Squirek  <squirek@adacore.com>

        * sem_prag.adb (Analyze_Pragma): Add appropriate calls to
        Resolve_Suppressible in the pragma Assertion_Policy case.
        (Resolve_Suppressible): Created this function to factor out
        common code used to resolve Suppress to either Ignore or Check
        * snames.ads-tmpl: Add name for Suppressible.

2017-01-12  Gary Dismukes  <dismukes@adacore.com>

        * exp_ch9.adb, s-secsta.adb, snames.ads-tmpl, exp_ch3.adb: Minor
        reformatting.
        * debug.adb: Minor comment fixes.

2017-01-12  Arnaud Charlet  <charlet@adacore.com>

        * sem_util.adb (Unique_Entity): For concurrent
        bodies that are defined with stubs and complete a declaration
        of a single concurrent object return the entity of an implicit
        concurrent type, not the entity of the anonymous concurrent
        object.
        * debug.adb: -gnatd.J is no longer used.
        * make.adb (Globalize): Removed, no longer used.
        * sem_ch9.adb: minor typo in comment for entry index

2017-01-12  Patrick Bernardi  <bernardi@adacore.com>

        * aspect.adb, aspect.ads: Added new aspect Secondary_Stack_Size.
        * exp_ch3.adb (Build_Init_Statements): As part of initialising
        the value record of a task, set its _Secondary_Stack_Size field
        if present.
        * exp_ch9.adb (Expand_N_Task_Type_Declaration): Create
        a _Secondary_Stack_Size field in the value record of
        the task if a Secondary_Stack_Size rep item is present.
        (Make_Task_Create_Call): Include secondary stack size
        parameter. If No_Secondary_Stack restriction is in place, passes
        stack size of 0.
        * par-prag.adb, sem_prag.adb, sem_prag.ads: Added new pragma
        Secondary_Stack_Size.
        * s-secsta.adb, s-secsta.ads (Minimum_Secondary_Stack_Size): New
        function to define the overhead of the secondary stack.
        * s-tarest.adb (Create_Restricted_Task,
        Create_Restricted_Task_Sequential): Functions now include
        Secondary_Stack_Size parameter to pass to Initialize_ATCB.
        * s-tarest.adb (Create_Restricted_Task,
        Create_Restricted_Task_Sequential): Calls to Initialize_ATCB now
        include Secondary_Stack_Size parameter.
        (Task_Wrapper): Secondary stack now allocated to the size specified by
        the Secondary_Stack_Size parameter in the task's ATCB.
        * s-taskin.adb, s-taskin.adb (Common_ATCB, Initialize_ATCB): New
        Secondary_Stack_Size component.
        * s-tassta.adb, s-tassta.ads (Create_Restricted_Task,
        Create_Restricted_Task_Sequential): Function now include
        Secondary_Stack_Size parameter.
        (Task_Wrapper): Secondary stack now allocated to the size
        specified by the Secondary_Stack_Size parameter in the task's
        ATCB.
        * s-tproft.adb (Register_Foreign_Thread): Amended Initialize_ATCB call
        to include Secondary_Stack_Size parameter.
        * sem_ch13.adb (Analyze_Aspect_Specification): Add support for
        Secondary_Stack_Size aspect, turning the aspect into its corresponding
        internal attribute.
        (Analyze_Attribute_Definition): Process Secondary_Stack_Size attribute.
        * snames.adb-tmpl, snames.ads-tmpl: Added names
        Name_Secondary_Stack_Size, Name_uSecondary_Stack_Size,
        Attribute_Secondary_Stack_Size and Pragma_Secondary_Stack_Size.

2017-01-12  Yannick Moy  <moy@adacore.com>

        * exp_spark.adb (Expand_SPARK_Potential_Renaming): Fix sloc of copied
        subtree.

2017-01-12  Justin Squirek  <squirek@adacore.com>

        * exp_attr.adb (Expand_N_Attribute_Reference):
        Fix Finalization_Size case by properly resolving the type after
        rewritting the node.

2017-01-12  Hristian Kirtchev  <kirtchev@adacore.com>

        * exp_util.adb (Build_DIC_Procedure_Body): Semi-insert the body into
        the tree.
        (Build_DIC_Procedure_Declaration): Semi-insert the body into the tree.
        * binde.adb, exp_ch5.adb, sem_type.adb, sem.ads, sem_res.adb,
        exp_sel.ads: Minor reformatting.

2017-01-12  Justin Squirek  <squirek@adacore.com>

        * exp_ch6.adb (Expand_Call): Add guard to prevent
        invariant checks from being created for internally generated
        subprograms.

2017-01-12  Bob Duff  <duff@adacore.com>

        * lib-writ.ads: Remove incorrect comment.

2017-01-12  Javier Miranda  <miranda@adacore.com>

        * debug.adb (-gnatd.K): Enable generation of contract-only
        procedures in CodePeer mode.
        * contracts.adb (Build_And_Analyze_Contract_Only_Subprograms):
        New subprogram.
        (Analyze_Contracts): Generate contract-only procedures if -gnatdK is
        set.
        * scil_ll.ads, scil_ll.adb (Get_Contract_Only_Body_Name): New
        subprogram.
        (Get_Contract_Only_Missing_Body_Name): New subprogram.
        (Get_Contract_Only_Body): New subprogram.
        (Set_Contract_Only_Body): New subprogram.
        (Is_Contract_Only_Body): New subprogram.
        (Set_Is_Contract_Only_Body): New subprogram.
        (SCIL_Nodes): Replace table by hash-table.

2017-01-12  Hristian Kirtchev  <kirtchev@adacore.com>

        * exp_ch6.adb: Minor reformatting.
        * spark_xrefs.ads: minor cleanup of comments for SPARK xrefs

2017-01-12  Bob Duff  <duff@adacore.com>

        * binde.adb (Forced): New reason for a dependence.
        (Force_Elab_Order): Implementation of the new switch.
        * binde.ads: Minor comment fixes.
        * bindusg.adb: Add -f switch. Apparently, there was an -f switch
        long ago that is no longer supported; removed comment about that.
        * opt.ads (Force_Elab_Order_File): Name of file specified for
        -f switch.
        * switch-b.adb: Parse -f switch.

2017-01-12  Justin Squirek  <squirek@adacore.com>

        * exp_ch6.adb (Check_View_Conversion): Created this function
        to properly chain calls to check type invariants that may be
        present in a subprogram call after the subprogram.
        (Expand_Call): Add a conditional to identify when a view conversion
        needs to be checked.
        * nlists.adb, nlists.ads (Prepend_New): New routine.
        (Prepend_New_To): New routine.

2017-01-12  Hristian Kirtchev  <kirtchev@adacore.com>

        * sinfo.ads: Minor reformatting.

2017-01-12  Gary Dismukes  <dismukes@adacore.com>

        * exp_util.adb, exp_util.ads, einfo.ads: Minor typo fixes and
        reformatting.

2017-01-12  Hristian Kirtchev  <kirtchev@adacore.com>

        * exp_ch6.adb (Make_Build_In_Place_Call_In_Anonymous_Context): Add new
        variable Definite. Create a local object and pass its 'Access to the
        BIP function when the result type is either definite or it does not
        require any finalization or secondary stack management.

2017-01-12  Bob Duff  <duff@adacore.com>

        * contracts.adb, einfo.adb, errout.adb, exp_attr.adb,
        exp_ch3.adb, exp_ch7.adb, exp_ch9.adb, exp_prag.adb, freeze.adb,
        frontend.adb, ghost.adb, inline.adb, lib-writ.adb, lib-xref.adb,
        par.adb, par-ch10.adb, par-ch2.adb, par-prag.adb, par_sco.adb,
        sem_attr.adb, sem_aux.adb, sem_ch10.adb, sem_ch12.adb,
        sem_ch13.adb, sem_ch6.adb, sem_ch8.adb, sem_ch9.adb, sem_elab.adb,
        sem_prag.adb, sem_res.adb, sem_util.adb, sem_util.ads,
        sem_warn.adb, sinfo.adb, sinfo.ads, sprint.adb (Pragma_Name):
        Change name to Pragma_Name_Unmapped.
        (Pragma_Name_Mapped): Change name to Pragma_Name.
        This is because the "mapped" version should be the usual case.

2017-01-09  Hristian Kirtchev  <kirtchev@adacore.com>

        * einfo.ads, einfo.adb: Remove uses of flags Has_Default_Init_Cond,
        Is_Default_Init_Cond_Procedure, and
        Has_Inherited_Default_Init_Cond.  Add uses of flags
        Has_Own_DIC, Is_DIC_Procedure, and Has_Inherited_DIC.
        (Default_Init_Cond_Procedure): Removed.
        (DIC_Procedure): New routine.
        (Has_Default_Init_Cond): Removed.
        (Has_DIC): New routine.
        (Has_Inheritable_Invariants): The attribute applies to the base type.
        (Has_Inherited_Default_Init_Cond): Removed.
        (Has_Inherited_DIC): New routine.
        (Has_Inherited_Invariants): The attribute applies to the base type.
        (Has_Own_DIC): New routine.
        (Has_Own_Invariants): The attribute applies to the base type.
        (Is_Default_Init_Cond_Procedure): Removed.
        (Is_DIC_Procedure): New routine.
        (Set_Default_Init_Cond_Procedure): Removed.
        (Set_DIC_Procedure): New routine.
        (Set_Has_Default_Init_Cond): Removed.
        (Set_Has_Inheritable_Invariants): The attribute applies
        to the base type.
        (Set_Has_Inherited_Default_Init_Cond): Removed.
        (Set_Has_Inherited_DIC): New routine.
        (Set_Has_Inherited_Invariants): The attribute applies to the base type.
        (Set_Has_Own_DIC): New routine.
        (Set_Has_Own_Invariants): The attribute applies to the base type.
        (Set_Is_Default_Init_Cond_Procedure): Removed.
        (Set_Is_DIC_Procedure): New routine.
        (Write_Entity_Flags): Update the output of all flags related to
        default initial condition.
        * exp_ch3.adb (Expand_N_Object_Declaration): Update the generation
        of the call to the DIC procedure.
        (Freeze_Type): Generate the body of the DIC procedure.
        * exp_ch7.adb (Build_Invariant_Procedure_Body): Replace
        all occurrences of Create_Append with Append_New_To. Do
        not generate an invariant procedure for a class-wide type.
        The generated body acts as a freeze action of the working type.
        (Build_Invariant_Procedure_Declaration): Do not generate an
        invariant procedure for a class-wide type.
        (Create_Append): Removed.
        * exp_util.adb: Add with and use clauses for Sem_Ch3, sem_ch6,
        sem_Ch12, Sem_Disp, and GNAT.HTable. Move the handling of
        class-wide pre/postcondition description and data structures from
        Sem_Prag.
        (Build_Class_Wide_Expression): Moved from Sem_Prag.
        (Build_DIC_Call): New routine.
        (Build_DIC_Procedure_Body): New routine.
        (Build_DIC_Procedure_Declaration): New routine.
        (Entity_Hash): Moved from Sem_Prag.
        (Find_DIC_Type): New routine.
        (Update_Primitives_Mapping): Reimplemented.
        (Update_Primitives_Mapping_Of_Types): New routine.
        * exp_util.ads (Build_Class_Wide_Expression): Moved from Sem_Prag.
        (Build_DIC_Call): New routine.
        (Build_DIC_Procedure_Body): New routine.
        (Build_DIC_Procedure_Declaration): New routine.
        (Update_Primitives_Mapping): Moved from Sem_Prag.
        (Update_Primitives_Mapping_Of_Types): New routine.
        * nlists.adb (Append_New): New routine.
        (Append_New_To): New routine.
        * nlists.ads (Append_New): New routine.
        (Append_New_To): New routine.
        * sem_ch3.adb (Analyze_Declarations): Do not generate the bodies
        of DIC procedures here. This is now done at the end of the
        visible declarations, private declarations, and at the freeze
        point of a type.
        (Analyze_Private_Extension_Declaration):
        A private extension inherits the DIC pragma of a parent type.
        (Analyze_Subtype_Declaration): No need to propagate invariant
        attributes to a subtype as those apply to the base type.
        (Build_Derived_Record_Type): No need to inherit invariants here
        as this is now done in Build_Derived_Type.
        (Build_Derived_Type): Inherit both the DIC pragma and invariants from
        a parent type.
        (Process_Full_View): Update the propagation of DIC attributes.
        (Propagate_Default_Init_Cond_Attributes): Removed.
        * sem_ch7.adb Add with and use clauses for Exp_Util.
        (Analyze_Package_Specification): Create the body of the DIC
        procedure at the end of the visible and private declarations.
        (Preserve_Full_Attributes): Propagate DIC attributes.
        * sem_ch9.adb (Analyze_Protected_Type_Declaration): Propagate
        DIC attributes.
        (Analyze_Task_Type_Declaration): Propagate DIC attributes.
        * sem_elab.adb (Check_A_Call): Update the call to
        Is_Nontrivial_Default_Init_Cond_Procedure.
        * sem_prag.adb Remove the with and use clauses for
        GNAT.HTable. Move the handling of class- wide pre/postcondition
        description and data structures to Exp_Util.
        (Analyze_Pragma): Create the declaration of the DIC procedure. There
        is no need to propagate invariant-related attributes at this point
        as this is done in Build_Invariant_Procedure_Declaration.
        (Build_Class_Wide_Expression): Moved to Exp_Util.
        (Entity_Hash): Moved to Exp_Util.
        (Update_Primitives_Mapping): Moved to Exp_Util.
        * sem_prag.ads (Build_Class_Wide_Expression): Moved to Exp_Util.
        (Update_Primitives_Mapping): Moved to Exp_Util.
        * sem_util.adb: Remove with and use clauses for Ghost
        and Sem_Ch13.
        (Build_Default_Init_Cond_Call): Removed.
        (Build_Default_Init_Cond_Procedure_Bodies): Removed.
        (Build_Default_Init_Cond_Procedure_Declaration): Removed.
        (Get_Views): Reimplemented.
        (Has_Full_Default_Initialization): Reimplement the section on DIC.
        (Inherit_Default_Init_Cond_Procedure): Removed.
        (Is_Nontrivial_Default_Init_Cond_Procedure): Removed.
        (Is_Nontrivial_DIC_Procedure): New routine.
        (Is_Verifiable_DIC_Pragma): New routine.
        (Propagate_DIC_Attributes): New routine.
        * sem_util.ads (Build_Default_Init_Cond_Call): Removed.
        (Build_Default_Init_Cond_Procedure_Bodies): Removed.
        (Build_Default_Init_Cond_Procedure_Declaration): Removed.
        (Inherit_Default_Init_Cond_Procedure): Removed.
        (Is_Nontrivial_Default_Init_Cond_Procedure): Removed.
        (Is_Nontrivial_DIC_Procedure): New routine.
        (Is_Verifiable_DIC_Pragma): New routine.
        (Propagate_DIC_Attributes): New routine.
        * sem_warn.adb (Is_OK_Fully_Initialized): Reimplement the section
        on DIC.
        * sinfo.ads, sinfo.adb: Add new attribute Expression_Copy along with
        usage in nodes.
        (Expression_Copy): New routine along with pragma Inline.
        (Set_Expression_Copy): New routine along with pragma Inline.

2017-01-06  Bob Duff  <duff@adacore.com>

        * bindgen.adb (Gen_Adainit, Gen_Adafinal): Change
        "Bind_Main_Program" to "not Bind_For_Library", because otherwise
        we won't generate the call to s_stalib_adafinal when the main
        is not written in Ada.

2017-01-06  Bob Duff  <duff@adacore.com>

        * sem_prag.adb: Minor: remove pragma Warnings.

2017-01-06  Tristan Gingold  <gingold@adacore.com>

        * Makefile.rtl: Do not compile s-stchop by default.

2017-01-06  Patrick Bernardi  <bernardi@adacore.com>

        * aspects.adb, aspects.ads, exp_ch3.adb, exp_ch9.adb, par-prag.adb,
        sem_ch13.adb, sem_prag.adb, sem_prag.ads, snames.adb-tmpl,
        snames.ads-tmpl, s-secsta.adb, s-secsta.ads, s-tarest.adb,
        s-tarest.ads, s-taskin.adb, s-taskin.ads, s-tassta.adb, s-tassta.ads:
        Reverted previous change for now.

2017-01-06  Ed Schonberg  <schonberg@adacore.com>

        * exp_ch3.adb (Build_Initialization_Call): Apply predicate
        check to default discriminant value if checks are enabled.
        (Build_Assignment): If type of component has static predicate,
        apply check to its default value, if any.

2017-01-06  Patrick Bernardi  <bernardi@adacore.com>

        * aspect.adb, aspect.ads: Added new aspect Secondary_Stack_Size.
        * exp_ch3.adb (Build_Init_Statements): As part of initialising
        the value record of a task, set its _Secondary_Stack_Size field
        if present.
        * exp_ch9.adb (Expand_N_Task_Type_Declaration): Create
        a _Secondary_Stack_Size field in the value record of
        the task if a Secondary_Stack_Size rep item is present.
        (Make_Task_Create_Call): Include secondary stack size
        parameter. If No_Secondary_Stack restriction is in place, passes
        stack size of 0.
        * par-prag.adb, sem_prag.adb, sem_prag.ads: Added new pragma
        Secondary_Stack_Size.
        * s-secsta.adb, s-secsta.ads (Minimum_Secondary_Stack_Size): New
        function to define the overhead of the secondary stack.
        * s-tarest.adb (Create_Restricted_Task,
        Create_Restricted_Task_Sequential): Functions now include
        Secondary_Stack_Size parameter to pass to Initialize_ATCB.
        * s-tarest.adb (Create_Restricted_Task,
        Create_Restricted_Task_Sequential): Calls to Initialize_ATCB
        now include Secondary_Stack_Size parameter.
        (Task_Wrapper):
        Secondary stack now allocated to the size specified by the
        Secondary_Stack_Size parameter in the task's ATCB.
        * s-taskin.adb, s-taskin.adb (Common_ATCB, Initialise_ATCB): New
        Secondary_Stack_Size component.
        * s-tassta.adb, s-tassta.ads (Create_Restricted_Task,
        Create_Restricted_Task_Sequential): Function now include
        Secondary_Stack_Size parameter.
        (Task_Wrapper): Secondary stack
        now allocated to the size specified by the Secondary_Stack_Size
        parameter in the task's ATCB.
        * sem_ch13.adb (Analyze_Aspect_Specification): Add support
        for Secondary_Stack_Size aspect, turning the aspect into its
        corresponding internal attribute.
        (Analyze_Attribute_Definition):
        Process Secondary_Stack_Size attribute.
        * snames.adb-tmpl, snames.ads-tmpl: Added names
        Name_Secondary_Stack_Size, Name_uSecondary_Stack_Size,
        Attribute_Secondary_Stack_Size and Pragma_Secondary_Stack_Size.

2017-01-06  Pascal Obry  <obry@adacore.com>

        * a-direio.adb, a-direio.ads, a-sequio.adb, a-sequio.ads: Add Flush to
        Sequential_IO and Direct_IO.

2017-01-06  Bob Duff  <duff@adacore.com>

        * snames.ads-tmpl (Renamed): New name for the pragma argument.
        * par-ch2.adb: Allow the new pragma (with analysis deferred
        to Sem_Prag).
        * sinfo.ads, sinfo.adb (Map_Pragma_Name, Pragma_Name_Mapped):
        Keep a mapping from new pragma names to old names.
        * sem_prag.adb: Check legality of pragma Rename_Pragma, and
        implement it by calling Map_Pragma_Name.
        * checks.adb, contracts.adb, einfo.adb, errout.adb,
        * exp_attr.adb, exp_ch3.adb, exp_ch6.adb, exp_ch7.adb, exp_ch9.adb,
        * exp_prag.adb, exp_util.adb, freeze.adb, frontend.adb, ghost.adb,
        * inline.adb, lib-writ.adb, scans.adb, scans.ads, sem_attr.adb,
        * sem_aux.adb, sem_ch10.adb, sem_ch13.adb, sem_ch6.adb, sem_ch9.adb,
        * sem_elab.adb, sem_res.adb, sem_util.adb, sem_util.ads,
        * sem_warn.adb: Call Pragma_Name_Mapped instead of Pragma_Name
        as appropriate.

2017-01-06  Hristian Kirtchev  <kirtchev@adacore.com>

        * exp_ch9.adb: Minor reformatting.

2017-01-06  Tristan Gingold  <gingold@adacore.com>

        * exp_ch9.ads, exp_ch9.adb (Build_Entry_Names): Remove (unused).
        * rtsfind.ads (RE_Task_Entry_Names_Array, RO_ST_Set_Entry_Names)
        (RE_Protected_Entry_Names_Array, RO_PE_Set_Entry_Names): Remove
        (unused).
        * s-taskin.ads, s-taskin.adb (Set_Entry_Names,
        Task_Entry_Names_Array, Task_Entry_Names_Access): Remove.
        * s-tpoben.ads, s-tpoben.adb (Set_Entry_Names,
        Protected_Entry_Names_Array, Protected_Entry_Names_Access): Remove.

2017-01-06  Bob Duff  <duff@adacore.com>

        * sinfo.ads, sinfo.adb (Map_Pragma_Name): Preparation work,
        dummy implementation of Map_Pragma_Name.

2017-01-06  Tristan Gingold  <gingold@adacore.com>

        * exp_ch9.adb (Expand_N_Protected_Type_Declaration): Make the
        entry_body variable constant.
        * s-taprob.ads (Entry_Body_Access): Move to s-tposen.
        * s-tpoben.ads (Protected_Entry_Body_Access): Now access
        to constant.
        * s-tposen.ads (Entry_Body_Access): Moved from s-taprob,
        now access to constant.

2017-01-06  Gary Dismukes  <dismukes@adacore.com>

        * einfo.ads, sem_res.adb, sem_attr.adb, sem_ch6.adb: Minor
        reformatting and typo fixes.

2017-01-06  Bob Duff  <duff@adacore.com>

        * snames.ads-tmpl: New names for pragma renaming.
        * snames.adb-tmpl (Is_Configuration_Pragma_Name): Minor cleanup.
        * par-prag.adb: Add new pragma name to case statement.
        * sem_prag.adb (Rename_Pragma): Initial cut at semantic analysis
        of the pragma.
        * sinfo.ads, sinfo.adb (Pragma_Name_Mapped): Preparation work,
        Dummy implementation of Pragma_Name_Mapped.

2017-01-06  Ed Schonberg  <schonberg@adacore.com>

        * exp_ch6.adb (Expand_Protected_Subprogram_Call): Add guard to
        better detect call within an entry_wrapper.
        * sem_res.adb (Resolve_Call): A protected call within an
        entity_wrapper is analyzed in the context of the protected
        object but corresponds to a pre-analysis and is not an access
        before elaboration.
        * sem_attr.adb: Minor reformatting.

2017-01-06  Justin Squirek  <squirek@adacore.com>

        * sem_attr.adb (Analyze_Attribute): Modify semantic checks for
        Finalization_Size to allow a prefix of any non-class-wide type.
        * sem_attr.ads Modify comment for Finalization_Size to include
        definite type use case.

2017-01-06  Ed Schonberg  <schonberg@adacore.com>

        * einfo.ads, einfo.adb (Is_Entry_Wrapper): New flag, defined
        on procedures that are wrappers created for entries that have
        preconditions.
        * sem_ch6.adb (Analyze_Subrogram_Body_Helper): If the subprogram
        body is an entry_wrapper, compile it in the context of the
        synchronized type, because a precondition may refer to funtions
        of the type.
        * exp_ch9.adb (Build_Contract_Wrapper): Set Is_Entry_Wrapper on
        body entity.
        * exp_ch6.adb (Expand_Protected_Subprogram_Call): if the call is
        within an Entry_Wrapper this is an external call whose target
        is the synchronized object that is the actual in the call to
        the wrapper.

2017-01-06  Yannick Moy  <moy@adacore.com>

        * sem_attr.adb (Analyze_Attribute/Attribute_Loop_Entry): Analyze node
        in tree, which means not analyzing the previous prefix if the node has
        been rewritten into its prefix.

2017-01-06  Gary Dismukes  <dismukes@adacore.com>

        * s-tpobop.adb: Minor reformatting.

2017-01-06  Ed Schonberg  <schonberg@adacore.com>

        * checks.adb (Ensure_Valid): Do not generate a validity check
        within a generated predicate function, validity checks will have
        been applied earlier when required.

2017-01-06  Tristan Gingold  <gingold@adacore.com>

        * s-tpoben.ads (Protection_Entries): Add comment and reorder
        components for performances.
        * s-tpobop.adb (PO_Do_Or_Queue): Implement Max_Queue_Length runtime
        semantic.

2017-01-06  Ed Schonberg  <schonberg@adacore.com>

        * sem_eval.adb (Check_Expression_Against_Static_Predicate):
        If expression is compile-time known and obeys a static predicate
        it must be labelled as static, to prevent spurious warnings and
        run-time errors, e.g. in case statements. This is relevant when
        the expression is the result of constant-folding a type conversion
        whose expression is a variable with a known static value.

2017-01-06  Hristian Kirtchev  <kirtchev@adacore.com>

        * exp_attr.adb, sem_attr.ads: Minor reformatting.

2017-01-06  Justin Squirek  <squirek@adacore.com>

        * exp_attr.adb (Expand_N_Attribute_Reference): Add entry for
        expansion of Finalization_Size attribute.
        * sem_attr.adb (Analyze_Attribute): Add entry to check the
        semantics of Finalization_Size.
        (Eval_Attribute): Add null entry for Finalization_Size.
        * sem_attr.ads: Add Finalization_Size to the implementation
        dependent attribute list.
        * snames.ads-tmpl: Add name entry for Finalization_Size attribute.

2017-01-06  Ed Schonberg  <schonberg@adacore.com>

        * sem_ch5.adb (Analyze_Loop_Statement): If the loop includes an
        iterator specification with a serious syntactic error, transform
        construct into an infinite loop in order to continue analysis
        and prevent a compiler abort.

2017-01-06  Tristan Gingold  <gingold@adacore.com>

        * exp_ch9.adb (Expand_N_Protected_Type_Declaration): Do not generate
        max_queue_lengths_array if unused.

2017-01-06  Bob Duff  <duff@adacore.com>

        * errout.adb (Set_Msg_Text): Protect against out-of-bounds
        array access, in case "\" is at the end of Text.
        * stylesw.adb (Set_Style_Check_Options): Don't include input
        characters in the error message template, because they could
        be control characters such as "\", which Errout will try to
        interpret.

2017-01-06  Ed Schonberg  <schonberg@adacore.com>

        * sem_ch4.adb (Find_Indexing_Operations, Inspect_Declarations):
        For a private type examine the visible declarations that follow
        the partial view, not just the private declarations that follow
        the full view.

2017-01-06  Hristian Kirtchev  <kirtchev@adacore.com>

        * exp_ch5.adb, sem_ch3.adb, checks.adb: Minor reformatting and
        code cleanup.

2017-01-06  Ed Schonberg  <schonberg@adacore.com>

        * exp_ch5.adb (Get_Default_Iterator): For a derived type, the
        alias of the inherited op is the parent iterator, no need to
        examine dispatch table positions which might not be established
        yet if type is not frozen.
        * sem_disp.adb (Check_Controlling_Formals): The formal of a
        predicate function may be a subtype of a tagged type.
        * sem_ch3.adb (Complete_Private_Subtype): Adjust inheritance
        of representation items for the completion of a type extension
        where a predicate applies to the partial view.
        * checks.ads, checks.adb (Apply_Predicate_Check): Add optional
        parameter that designates function whose actual receives a
        predicate check, to improve warning message when the check will
        lead to infinite recursion.
        * sem_res.adb (Resolve_Actuals): Pass additional parameter to
        Apply_Predicate_Check.

2017-01-06  Tristan Gingold  <gingold@adacore.com>

        * s-rident.ads (Profile_Info): Remove No_Entry_Queue from
        Gnat_Extended_Ravenscar.
        * exp_ch9.adb, s-tpoben.adb, s-tpoben.ads: Fix spelling.

2017-01-06  Gary Dismukes  <dismukes@adacore.com>

        * sem_util.ads: Minor typo fix and reformatting.

2017-01-06  Yannick Moy  <moy@adacore.com>

        * ghost.adb Minor fixing of references to SPARK RM.
        (Check_Ghost_Context): Check whether reference is to a lvalue
        before issuing an error about violation of SPARK RM 6.9(13)
        when declaration has Ghost policy Check and reference has Ghost
        policy Ignore.
        * sem_util.adb Minor indentation.
        * sem_ch10.adb (Analyze_Package_Body_Stub, Analyze_Protected_Body_Stub,
        Analyze_Task_Body_Stub): Set Ekind of the defining identifier.
        * sem_util.ads (Unique_Defining_Entity): Document the result
        for package body stubs.

2017-01-06  Tristan Gingold  <gingold@adacore.com>

        * raise-gcc.c (abort): Macro to call Abort_Propagation.
        * s-tpoben.ads (Protected_Entry_Queue_Max_Access): Make it access
        constant.
        * exp_ch9.adb (Expand_N_Protected_Type_Declaration):
        Do not generate the Entry_Max_Queue_Lengths_Array if all default
        values.
        * exp_util.adb (Corresponding_Runtime_Package): Consider
        Max_Queue_Length pragma.

2017-01-06  Justin Squirek  <squirek@adacore.com>

        * exp_ch9.adb (Expand_N_Protected_Type_Declaration):
        Remove declaration generation in the case of
        System_Tasking_Protected_Objects_Single_Entry being used,
        and add a warning message when this is detected to occur.
        (Make_Initialize_Protection): Remove reference pass in the case
        of System_Tasking_Protected_Objects_Single_Entry.
        * rtsfind.ads: Remove RE_Protected_Entry_Queue_Max
        * s-tposen.adb (Initialize_Protection_Entry): Remove
        Entry_Queue_Max parameter.
        * s-tposen.ads: Remove the types use to store the entry queue
        maximum.
        * sem_prag.adb (Analyze_Pragma): Remove entry families restriction

2017-01-06  Yannick Moy  <moy@adacore.com>

        * sem_util.adb, sem_util.ads (Get_Enum_Lit_From_Pos): Strengthen
        behavior of function, to also accept out of range positions
        and raise Constraint_Error in such case, and to copy sloc from
        literal if No_Location passed as location.
        * uintp.adb, uintp.ads (UI_To_Int, UI_To_CC): Strengthen behavior
        of functions to raise Constraint_Error in case of value not in
        appropriate range.

2017-01-06  Tristan Gingold  <gingold@adacore.com>

        * sem_util.adb, s-taprop-linux.adb (Finalize_TCB): Remove call to
        Invalidate_Stack_Cache.

2017-01-06  Eric Botcazou  <ebotcazou@adacore.com>

        * s-os_lib.adb: Minor fix to the signature of Readlink.

2017-01-06  Javier Miranda  <miranda@adacore.com>

        * sem_ch6.adb (Conforming_Types): Handle another
        confusion between views in a nested instance with an actual
        private type whose full view is not in scope.

2017-01-06  Arnaud Charlet  <charlet@adacore.com>

        * exp_ch5.adb (Expand_N_If_Statement): Obey existing comment and
        mark a rewritten if statement as explicit (Comes_From_Source).

2017-01-06  Gary Dismukes  <dismukes@adacore.com>

        * sem_prag.adb, rtsfind.adb, sem_util.adb: Minor typo fixes.

2017-01-06  Tristan Gingold  <gingold@adacore.com>

        * ada.ads, a-unccon.ads: Add pragma No_Elaboration_Code_All.

2017-01-06  Hristian Kirtchev  <kirtchev@adacore.com>

        * sem_case.adb: Minor reformatting.

2017-01-06  Thomas Quinot  <quinot@adacore.com>

        * g-socthi-mingw.adb: Remove now extraneous USE TYPE clause

2017-01-06  Justin Squirek  <squirek@adacore.com>

        * aspects.adb: Register aspect in Canonical_Aspect.
        * aspects.ads: Associate qualities of Aspect_Max_Queue_Length
        into respective tables.
        * einfo.ads, einfo.adb: Add a new attribute for
        handling the parameters for Pragma_Max_Entry_Queue
        (Entry_Max_Queue_Lengths_Array) in E_Protected_Type. Subprograms
        for accessing and setting were added as well.
        * par-prag.adb (Prag): Register Pramga_Max_Entry_Queue.
        * exp_ch9.adb (Expand_N_Protected_Type_Declaration): Emit
        declaration for pramga arguments and store them in the protected
        type node.
        (Make_Initialize_Protection): Pass a reference to
        the Entry_Max_Queue_Lengths_Array in the protected type node to
        the runtime.
        * rtsfind.adb: Minor grammar fix.
        * rtsfind.ads: Register new types taken from the
        runtime libraries RE_Protected_Entry_Queue_Max and
        RE_Protected_Entry_Queue_Max_Array
        * s-tposen.adb, s-tpoben.adb
        (Initialize_Protection_Entry/Initialize_Protection_Entries):
        Add extra parameter and add assignment to local object.
        * s-tposen.ads, s-tpoben.ads: Add new types to
        store entry queue maximums and a field to the entry object record.
        * sem_ch13.adb (Analyze_Aspect_Specifications): Add case statement
        for Aspect_Max_Queue_Length.
        (Check_Aspect_At_Freeze_Point):
        Add aspect to list of aspects that don't require delayed analysis.
        * sem_prag.adb (Analyze_Pragma): Add case statement for
        Pragma_Max_Queue_Length, check semantics, and register arugments
        in the respective entry nodes.
        * sem_util.adb, sem_util.ads Add functions Get_Max_Queue_Length
        and Has_Max_Queue_Length
        * snames.ads-tmpl: Add constant for the new aspect-name
        Name_Max_Queue_Length and corrasponding pragma.

2017-01-06  Hristian Kirtchev  <kirtchev@adacore.com>

        * exp_util.adb (Is_Controlled_Function_Call):
        Reimplemented. Consider any node which has an entity as the
        function call may appear in various ways.

2017-01-06  Hristian Kirtchev  <kirtchev@adacore.com>

        * exp_attr.adb (Rewrite_Stream_Proc_Call): Use
        an unchecked type conversion when performing a view conversion
        to/from a private type. In all other cases use a regular type
        conversion to ensure that any relevant checks are properly
        installed.

2017-01-06  Hristian Kirtchev  <kirtchev@adacore.com>

        * sem_prag.adb, sem_ch8.adb: Minor reformatting.

2017-01-06  Ed Schonberg  <schonberg@adacore.com>

        * sem_case.adb (Explain_Non_Static_Bound): Suppress cascaded
        error on case expression that is an entity, when coverage is
        incomplete and entity has a static value obtained by local
        propagation.
        (Handle_Static_Predicate): New procedure, subsidiary of
        Check_Choices, to handle case alternatives that are either
        subtype names or subtype indications involving subtypes that
        have static predicates.

2017-01-06  Thomas Quinot  <quinot@adacore.com>

        * s-oscons-tmplt.c, g-socket.adb, g-socket.ads, g-sothco.ads:
        (GNAT.Socket): Add support for Busy_Polling and Generic_Option

2017-01-06  Bob Duff  <duff@adacore.com>

        * sem_elab.adb (Activate_Elaborate_All_Desirable): Don't add
        Elaborate_All(P) to P itself. That could happen in obscure cases,
        and always introduced a cycle (P body must be elaborated before
        P body).
        * lib-writ.ads: Comment clarification.
        * ali-util.ads: Minor comment fix.
        * ali.adb: Minor reformatting.

2017-01-06  Tristan Gingold  <gingold@adacore.com>

        * a-exexpr-gcc.adb: Improve comment.

2017-01-03  James Cowgill  <James.Cowgill@imgtec.com>

        * s-linux-mips.ads: Use correct signal and errno constants.
        (sa_handler_pos, sa_mask_pos): Fix offsets for 64-bit MIPS.

2017-01-03  James Cowgill  <James.Cowgill@imgtec.com>

        * s-linux-mips.ads: Rename from s-linux-mipsel.ads.
        * gcc-interface/Makefile.in (MIPS/Linux): Merge mips and mipsel
        sections.

2017-01-01  Eric Botcazou  <ebotcazou@adacore.com>

        * gnatvsn.ads: Bump copyright year.

2017-01-01  Jakub Jelinek  <jakub@redhat.com>

        * gnat_ugn.texi: Bump @copying's copyright year.
        * gnat_rm.texi: Likewise.
\f
Copyright (C) 2017 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.