re PR ada/48835 (porting GNAT to m68k-linux)

[gcc.git] / gcc / ada / ChangeLog

2016-06-29  Eric Botcazou  <ebotcazou@adacore.com>

        PR ada/48835
        PR ada/61954
        * gcc-interface/gigi.h (enum standard_datatypes): Add ADT_realloc_decl
        (realloc_decl): New macro.
        * gcc-interface/decl.c (gnat_to_gnu_entity) <E_Variable>: Use local
        variable for the entity type and translate it as void pointer if the
        entity has convention C.
        (gnat_to_gnu_entity) <E_Function>: If this is not a definition and the
        external name matches that of malloc_decl or realloc_decl, return the
        correspoding node directly.
        (gnat_to_gnu_subprog_type): Likewise for parameter and return types.
        * gcc-interface/trans.c (gigi): Initialize void_list_node here, not...
        Initialize realloc_decl.
        * gcc-interface/utils.c (install_builtin_elementary_types): ...here.
        (build_void_list_node): Delete.
        * gcc-interface/utils2.c (known_alignment) <CALL_EXPR>: Return the
        alignment of the system allocator for malloc_decl and realloc_decl.
        Do not take alignment from void pointer types either.

2016-06-29  Eric Botcazou  <ebotcazou@adacore.com>

        * gcc-interface/misc.c (LANG_HOOKS_WARN_UNUSED_GLOBAL_DECL): Reorder.
        (LANG_HOOKS_INIT_TS): Likewise.

2016-06-22  Arnaud Charlet  <charlet@adacore.com>

        * sem_prag.adb: Revert unwanted change in previous commit,
        only keep message fix.

2016-06-22  Ed Schonberg  <schonberg@adacore.com>

        * sem_prag.ads (Build_Classwide_Expression): new procedure to
        build the expression for an inherited classwide condition, and
        to validate such expressions when they apply to an inherited
        operation that is not overridden.
        * sem_prag.adb (Primitives_Mapping): new data structure to
        handle the mapping between operations of a root type and the
        corresponding overriding operations of a type extension. Used
        to construct the expression for an inherited classwide condition.
        (Update_Primitives_Mapping): add to Primitives_Mapping the links
        between primitive operations of a root type and those of a given
        type extension.
        (Build_Pragma_Check_Equivalent): use Primitives_Mapping.
        * sem_ch6.adb (New_Overloaded_Entity): Remove call to
        Collect_Iherited_Class_Wide_Conditions in GNATprove_Mode. This
        needs to be done at freeze point of the type.
        * freeze.adb (Check_Inherited_Conditions): new procedure to
        verify the legality of inherited classwide conditions. In normal
        compilation mode the procedure determines whether an inherited
        operation needs a wrapper to handle an inherited condition that
        differs from the condition of the root type.  In SPARK mode
        the routine invokes Collect_Inherited_Class_Wide_Conditions to
        produce the SPARK version of these inherited conditions.
        (Freeze_Record_Type): For a type extension, call
        Check_Inherited_Conditions.

2016-06-22  Hristian Kirtchev  <kirtchev@adacore.com>

        * sem_ch3.adb, sem_type.adb, sem.adb, freeze.adb, sem_util.adb,
        s-htable.adb, exp_ch11.adb, s-secsta.adb, restrict.adb, exp_disp.adb,
        sem_ch8.adb, s-tpobop.adb, exp_aggr.ads, sem_ch13.adb: Minor
        reformatting.

2016-06-22  Yannick Moy  <moy@adacore.com>

        * lib-xref-spark_specific.adb (Collect_SPARK_Xrefs): Inverse order of
        treatments so that files without compilation unit are simply skipped
        before more elaborate treatments.

2016-06-22  Bob Duff  <duff@adacore.com>

        * s-memory.ads: Minor typo fixes in comments.
        * s-memory.adb: Code cleanup.

2016-05-22  Olivier Hainque  <hainque@adacore.com>

        * vxworks-crtbe-link.spec: Removed, no longer used.

2016-06-22  Justin Squirek  <squirek@adacore.com>

        * sem_ch8.adb (Push_Scope): Add a check for when the
        scope table is empty to assign the global variable
        Configuration_Component_Alignment.
        * sem.adb (Do_Analyze): Add Configuration_Component_Alignment
        to be assigned when the environment is cleaned instead of the
        default.
        * sem.ads Add a global variable Configuration_Component_Alignment
        to store the value given by pragma Component_Alignment in the
        context of a configuration file.
        * sem_prag.adb (Analyze_Pragma): Correct the case for
        Component_Alignment so that the pragma is verified and add
        comments to explain how it is applied to the scope stack.

2016-06-22  Justin Squirek  <squirek@adacore.com>

        * sprint.adb (Sprint_Node_Actual): Add check in
        the case of an N_Object_Declaration when evaluating an expression
        to properly ignore errors.

2016-06-22  Bob Duff  <duff@adacore.com>

        * g-comlin.ads (Parameter_Type): Change subtype of Last to
        Natural.
        * g-comlin.adb (Set_Parameter): Change subtype of Last to
        Natural.
        (Getopt): Check for Arg = "", and Switches /= "".
        (Internal_Initialize_Option_Scan): Check for Argument (Parser,
        Index) /= "".

2016-06-22  Gary Dismukes  <dismukes@adacore.com>

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

2016-06-22  Ed Schonberg  <schonberg@adacore.com>

        * einfo.ads, einfo.adb (Is_Actual_Subtype): New flag, defined
        on subtypes that are created within subprogram bodies to handle
        unconstrained composite formals.
        * checks.adb (Apply_Predicate_Check): Do not generate a check on
        an object whose type is an actual subtype.
        * sem_ch6.adb (Set_Actual_Subtypes): Do not generate an
        actual subtype for a formal whose base type is private.
        Set Is_Actual_Subtype on corresponding entity after analyzing
        its declaration.

2016-06-22  Justin Squirek  <squirek@adacore.com>

        * sem_prag.adb (Check_Expr_Is_OK_Static_Expression): Fix ordering
        of if-block and add in a condition to test for errors during
        resolution.
        * sem_res.adb (Resolution_Failed): Add comment to explain why
        the type of a node which failed to resolve is set to the desired
        type instead of Any_Type.
        * sem_ch8.adb (Analyze_Object_Renaming): Add a check for Any_Type
        to prevent crashes on Is_Access_Constant.

2016-06-22  Hristian Kirtchev  <kirtchev@adacore.com>

        * lib-xref-spark_specific.adb, checks.adb, sem_ch13.adb: Minor
        reformatting.
        * exp_ch7.adb: Minor typo fix.
        * lib.ads (Get_Top_Level_Code_Unit): Add comment.

2016-06-22  Bob Duff  <duff@adacore.com>

        * s-tassta.adb (Task_Wrapper): Fix handling of Fall_Back_Handler
        wrt independent tasks.

2016-06-22  Ed Schonberg  <schonberg@adacore.com>

        * sem_dim.adb (Analyze_Dimension): Propagate dimension for
        explicit_dereference nodes when they do not come from source,
        to handle correctly dimensional analysis on iterators over
        containers whose elements have declared dimensions.

2016-06-22  Arnaud Charlet  <charlet@adacore.com>

        * spark_xrefs.ads (Scope_Num): type refined to positive integers.
        * lib-xref-spark_specific.adb (Detect_And_Add_SPARK_Scope):
        moved into scope of Collect_SPARK_Xrefs.
        (Add_SPARK_Scope): moved into scope of Collect_SPARK_Xrefs;
        now uses Dspec and Scope_Id from Collect_SPARK_Xrefs.
        (Collect_SPARK_Xrefs): refactored to avoid retraversing the list
        of scopes.
        (Traverse_Compilation_Unit): refactored as a generic procedure.
        * types.ads (Unit_Number_Type): range refined.

2016-06-22  Hristian Kirtchev  <kirtchev@adacore.com>

        * lib-xref-spark_specific.adb, a-cuprqu.ads, sem_ch6.adb: Minor
        reformatting.

2016-06-22  Eric Botcazou  <ebotcazou@adacore.com>

        * sem_util.ads (Address_Value): Declare new function.
        * sem_util.adb (Address_Value): New function extracted
        unmodified from Apply_Address_Clause_Check, which returns the
        underlying value of the expression of an address clause.
        * checks.adb (Compile_Time_Bad_Alignment): Delete.
        (Apply_Address_Clause_Check): Call Address_Value on
        the expression.  Do not issue the main warning here and
        issue the secondary warning only when the value of the
        expression is not known at compile time.
        * sem_ch13.adb (Address_Clause_Check_Record): Add A component and
        adjust the description.
        (Analyze_Attribute_Definition_Clause): In the case
        of an address, move up the code creating an entry in the table of
        address clauses.  Also create an entry for an absolute address.
        (Validate_Address_Clauses): Issue the warning for absolute
        addresses here too.  Tweak condition associated with overlays
        for consistency.

2016-06-22  Ed Schonberg  <schonberg@adacore.com>

        * sem_ch13.adb (Is_Predicate_Static): An inherited predicate
        can be static only if it applies to a scalar type.

2016-06-22  Ed Schonberg  <schonberg@adacore.com>

        * exp_util.adb (Adjust_Result_Type): Convert operand to base
        type to prevent spurious constraint checks on subtypes of Boolean.

2016-06-22  Bob Duff  <duff@adacore.com>

        * debug.adb: Document debug switch -gnatd.o.
        * sem_elab.adb (Check_Internal_Call): Debug switch -gnatd.o
        now causes a more conservative treatment of indirect calls,
        treating P'Access as a call to P in more cases. We Can't make
        this the default, because it breaks common idioms, for example
        the soft links.
        * sem_util.adb: Add an Assert.

2016-06-22  Bob Duff  <duff@adacore.com>

        * a-cuprqu.ads, a-cuprqu.adb: Completely rewrite this package. Use
        red-black trees, which gives O(lg N) worst-case performance on
        Enqueue and Dequeue. The previous version had O(N) Enqueue in
        the worst case.

2016-06-22  Arnaud Charlet  <charlet@adacore.com>

        * sem_warn.adb: minor style fix in comment.
        * spark_xrefs.ads (Scope_Num): type refined to positive integers.
        * lib-xref-spark_specific.adb (Detect_And_Add_SPARK_Scope):
        moved into scope of Collect_SPARK_Xrefs.
        (Add_SPARK_Scope): moved into scope of Collect_SPARK_Xrefs;
        now uses Dspec and Scope_Id from Collect_SPARK_Xrefs.
        (Collect_SPARK_Xrefs): refactored to avoid retraversing the list
        of scopes.
        * sem_ch3.adb (Build_Discriminal): Set Parent of the discriminal.

2016-06-22  Arnaud Charlet  <charlet@adacore.com>

        * lib-xref-spark_specific.adb (Generate_Dereference): Assignment to not
        commented local variables replaced with direct uses of their values.

2016-06-22  Hristian Kirtchev  <kirtchev@adacore.com>

        * exp_ch7.adb (Add_Invariant): Replace the
        current type instance with the _object parameter even in ASIS mode.
        (Build_Invariant_Procedure_Body): Do not insert the
        invariant procedure body into the tree for ASIS and GNATprove.
        (Build_Invariant_Procedure_Declaration): Do not insert the
        invariant procedure declaration into the tree for ASIS and
        GNATprove.
        * lib-xref-spark_specific.adb (Add_SPARK_Scope): Update comment.

2016-06-22  Ed Schonberg  <schonberg@adacore.com>

        * sem_ch6.adb (Set_Actual_Subtypes): If the type of the actual
        has predicates, the actual subtype must be frozen properly
        because of the generated tests that may follow.  The predicate
        may be specified by an explicit aspect, or may be inherited in
        a derivation.

2016-06-22  Ed Schonberg  <schonberg@adacore.com>

        * exp_ch4.adb (In_Range_Chec)): New predicate, subsidiary of
        Expand_N_In: within an expanded range check that might raise
        Constraint_Error do not generate a predicate check as well. It
        is redundant because the context will add an explicit predicate
        check, and it will raise the wrong exception if it fails.
        * lib-xref-spark_specific.adb (Add_SPARK_File): Remove useless checks
        since dependency units always have an associated compilation unit.

2016-06-22  Arnaud Charlet  <charlet@adacore.com>

        * lib.ads: Code cleanup.
        * inline.adb: Type refinement for a counter variable.
        * lib-xref-spark_specific.adb (Add_SPARK_File): removal of no-op code.
        Code cleanup.

2016-06-21  Eric Botcazou  <ebotcazou@adacore.com>

        * gcc-interface/decl.c (set_nonaliased_component_on_array_type): New
        function.
        (set_reverse_storage_order_on_array_type): Likewise.
        (gnat_to_gnu_entity) <E_Array_Type>: Call them to set the flags.
        <E_Array_Subtype>: Likewise.
        <E_String_Literal_Subtype>: Likewise.
        (substitute_in_type) <ARRAY_TYPE>: Likewise.
        * gcc-interface/utils.c (gnat_pushdecl): Always create a variant for
        the DECL_ORIGINAL_TYPE of a type.

2016-06-20  Hristian Kirtchev  <kirtchev@adacore.com>

        * make.adb, gnatbind.adb, g-socket.adb, sem_ch13.adb: Minor
        reformatting.
        * lib.ads, sem_util.adb: Minor typo in comment.

2016-06-20  Yannick Moy  <moy@adacore.com>

        * sem_prag.adb, sem_prag.ads (Build_Pragma_Check_Equivalent):
        Add parameter Keep_Pragma_Id to optionally keep
        the identifier of the pragma instead of converting
        to pragma Check. Also set type of new function call
        appropriately.  (Collect_Inherited_Class_Wide_Conditions):
        Call Build_Pragma_Check_Equivalent with the new parameter
        Keep_Pragma_Id set to True to keep the identifier of the copied
        pragma.
        * sinfo.ads: Add comment.

2016-06-20  Hristian Kirtchev  <kirtchev@adacore.com>

        * exp_ch7.adb (Build_Invariant_Procedure_Body):
        Always install the scope of the invariant procedure
        in order to produce better error messages. Do not
        insert the body when the context is a generic unit.
        (Build_Invariant_Procedure_Declaration): Perform minimal
        decoration of the invariant procedure and its formal parameter
        in case they are not analyzed.  Do not insert the declaration
        when the context is a generic unit.

2016-06-20  Ed Schonberg  <schonberg@adacore.com>

        * sem_ch13.adb (Visible_Component): New procedure, subsidiary
        of Replace_Type_References_ Generic, to determine whether an
        identifier in a predicate or invariant expression is a visible
        component of the type to which the predicate or invariant
        applies. Implements the visibility rule stated in RM 13.1.1
        (12/3).

2016-06-20  Hristian Kirtchev  <kirtchev@adacore.com>

        * s-regpat.adb, sem_prag.adb, pprint.adb, sem_ch13.adb: Minor
        reformatting.

2016-06-20  Tristan Gingold  <gingold@adacore.com>

        * make.adb (Check_Standard_Library): Consider system.ads
        if s-stalib.adb is not available.
        * gnatbind.adb (Add_Artificial_ALI_File): New procedure extracted from
        gnatbind.

2016-06-20  Thomas Quinot  <quinot@adacore.com>

        * g-socket.adb (Is_IP_Address): A string consisting in digits only is
        not a dotted quad.

2016-06-20  Arnaud Charlet  <charlet@adacore.com>

        * exp_ch7.adb (Build_Invariant_Procedure_Body):
        decorate invariant procedure body with typical properties of
        procedure entityes.

2016-06-20  Arnaud Charlet  <charlet@adacore.com>

        * a-exetim-darwin.adb: New file.

2016-06-16  Hristian Kirtchev  <kirtchev@adacore.com>

        * atree.ads, atree.adb (Elist29): New routine.
        (Set_Elist29): New routine.
        * atree.h New definition for Elist29.
        * einfo.adb Subprograms_For_Type is now an Elist rather than
        a node. Has_Invariants is now a synthesized attribute
        and does not require a flag. Has_Own_Invariants
        is now Flag232. Has_Inherited_Invariants is
        Flag291. Is_Partial_Invariant_Procedure is Flag292.
        (Default_Init_Cond_Procedure): Reimplemented.
        (Has_Inherited_Invariants): New routine.
        (Has_Invariants): Reimplemented.
        (Has_Own_Invariants): New routine.
        (Invariant_Procedure): Reimplemented.
        (Is_Partial_Invariant_Procedure): New routine.
        (Partial_Invariant_Procedure): Reimplemented.
        (Predicate_Function): Reimplemented.
        (Predicate_Function_M): Reimplemented.
        (Set_Default_Init_Cond_Procedure): Reimplemented.
        (Set_Has_Inherited_Invariants): New routine.
        (Set_Has_Invariants): Removed.
        (Set_Has_Own_Invariants): New routine.
        (Set_Invariant_Procedure): Reimplemented.
        (Set_Is_Partial_Invariant_Procedure): New routine.
        (Set_Partial_Invariant_Procedure): Reimplemented.
        (Set_Predicate_Function): Reimplemented.
        (Set_Predicate_Function_M): Reimplemented.
        (Set_Subprograms_For_Type): Reimplemented.
        (Subprograms_For_Type): Reimplemented.
        (Write_Entity_Flags): Output Flag232 and Flag291.
        * einfo.ads Add new attributes Has_Inherited_Invariants
        Has_Own_Invariants Is_Partial_Invariant_Procedure
        Partial_Invariant_Procedure Change the documentation
        of attributes Has_Inheritable_Invariants Has_Invariants
        Invariant_Procedure Is_Invariant_Procedure Subprograms_For_Type
        (Has_Inherited_Invariants): New routine along with pragma Inline.
        (Has_Own_Invariants): New routine along with pragma Inline.
        (Is_Partial_Invariant_Procedure): New routine along with pragma Inline.
        (Partial_Invariant_Procedure): New routine.
        (Set_Has_Inherited_Invariants): New routine along with pragma Inline.
        (Set_Has_Invariants): Removed along with pragma Inline.
        (Set_Has_Own_Invariants): New routine along with pragma Inline.
        (Set_Is_Partial_Invariant_Procedure): New routine
        along with pragma Inline.
        (Set_Partial_Invariant_Procedure): New routine.
        (Set_Subprograms_For_Type): Update the signature.
        (Subprograms_For_Type): Update the signature.
        * exp_ch3.adb Remove with and use clauses for Sem_Ch13.
        (Build_Array_Invariant_Proc): Removed.
        (Build_Record_Invariant_Proc): Removed.
        (Freeze_Type): Build the body of the invariant procedure.
        (Insert_Component_Invariant_Checks): Removed.
        * exp_ch7.adb Add with and use clauses for Sem_Ch6, Sem_Ch13,
        and Stringt.
        (Build_Invariant_Procedure_Body): New routine.
        (Build_Invariant_Procedure_Declaration): New routine.
        * exp_ch7.ads (Build_Invariant_Procedure_Body): New routine.
        (Build_Invariant_Procedure_Declaration): New routine.
        * exp_ch9.adb (Build_Corresponding_Record): Do not propagate
        attributes related to invariants to the corresponding record
        when building the corresponding record. This is done by
        Build_Invariant_Procedure_Declaration.
        * exp_util.adb (Make_Invariant_Call): Reimplemented.
        * freeze.adb (Freeze_Array_Type): An array type requires an
        invariant procedure when its component type has invariants.
        (Freeze_Record_Type): A record type requires an invariant
        procedure when at least one of its components has an invariant.
        * sem_ch3.adb (Analyze_Private_Extension_Declaration): Inherit
        invariant-related attributes.
        (Analyze_Subtype_Declaration):
        Inherit invariant-related attributes.
        (Build_Derived_Record_Type): Inherit invariant-related attributes.
        (Check_Duplicate_Aspects): Reimplemented.
        (Get_Partial_View_Aspect): New routine.
        (Process_Full_View): Inherit invariant-related attributes. Reimplement
        the check on hidden inheritance of class-wide invariants.
        (Remove_Default_Init_Cond_Procedure): Reimplemented.
        * sem_ch6.adb (Analyze_Subprogram_Specification): Do not modify
        the controlling type for an invariant procedure declaration
        or body.
        (Is_Invariant_Procedure_Or_Body): New routine.
        * sem_ch7.adb (Analyze_Package_Specification): Build the partial
        invariant body in order to preanalyze and resolve all invariants
        of a private type at the end of the visible declarations. Build
        the full invariant body in order to preanalyze and resolve
        all invariants of a private type's full view at the end of
        the private declarations.
        (Preserve_Full_Attributes): Inherit invariant-related attributes.
        * sem_ch9.adb (Analyze_Protected_Type_Declaration): Ensure that
        aspects are analyzed with the proper view when the protected type
        is a completion of a private type. Inherit invariant-related attributes.
        (Analyze_Task_Type_Declaration): Ensure that
        aspects are analyzed with the proper view when the task type
        is a completion of a private type. Inherit invariant-related
        attributes.
        * sem_ch13.adb Remove with and use clauses for Stringt.
        (Build_Invariant_Procedure_Declaration): Removed.
        (Build_Invariant_Procedure): Removed.
        (Freeze_Entity_Checks): Do not build the body of the invariant
        procedure here.
        The body is built when the type is frozen in Freeze_Type.
        (Inherit_Aspects_At_Freeze_Point): Do not inherit any attributes
        related to invariants here because this leads to erroneous
        inheritance.
        (Replace_Node): Rename to Replace_Type_Ref.
        * sem_ch13.ads (Build_Invariant_Procedure_Declaration): Removed.
        (Build_Invariant_Procedure): Removed.
        * sem_prag.adb Add with and use clauses for Exp_Ch7.
        (Analyze_Pragma): Reimplement the analysis of pragma Invariant.
        * sem_res.adb (Resolve_Actuals): Emit a specialized error when
        the context is an invariant.
        * sem_util.adb (Get_Views): New routine.
        (Incomplete_Or_Partial_View): Consider generic packages when
        examining declarations.
        (Inspect_Decls): Consider full type
        declarations because they may denote a derivation from a
        private type.
        (Propagate_Invariant_Attributes): New routine.
        * sem_util.ads (Get_Views): New routine.
        (Propagate_Invariant_Attributes): New routine.

2016-06-16  Arnaud Charlet  <charlet@adacore.com>

        * pprint.adb (Expression_Image): Add better handling of UCs,
        we don't want to strip them all for clarity.


2016-06-20  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        * exp_util.adb (Safe_Unchecked_Type_Conversion): Use "alignment"
        instead of "alignement".

2016-06-16  Gary Dismukes  <dismukes@adacore.com>

        * sem_util.adb: Minor typo fix.

2016-06-16  Emmanuel Briot  <briot@adacore.com>

        * s-regpat.adb: Further fix for invalid index in GNAT.Regexp.

2016-06-16  Eric Botcazou  <ebotcazou@adacore.com>

        * sem_ch13.adb (Validate_Address_Clauses): Use the same logic to
        issue the warning on the offset for the size as for the alignment
        and tweak the wording for the sake of consistency.

2016-06-16  Ed Schonberg  <schonberg@adacore.com>

        * sem_prag.adb (Check_Class_Wide_COndition): New procedure,
        subsidiary of Analyze_Pre_Post_ Condition_In_Decl_Part, to
        check legality rules that follow from the revised semantics of
        class-wide pre/postconditions described in AI12-0113.
        (Build_Pragma_Check_Equivalent): Abstract subprogram declarations
        must be included in list of overriding primitives of a derived
        type.

2016-06-16  Ed Schonberg  <schonberg@adacore.com>

        * sem_util.adb (May_Be_Lvalue): An actual in an unexpanded
        attribute reference 'Read is an assignment and must be considered
        a modification of the object.

2016-06-16  Gary Dismukes  <dismukes@adacore.com>

        * einfo.adb: Minor editorial.

2016-06-16  Ed Schonberg  <schonberg@adacore.com>

        * sem_prag.adb (Overridden_Ancestor): Clean up code to use
        controlling type of desired primitive rather than its scope,
        because the primitive that inherits the classwide condition may
        comes from several derivation steps.

2016-06-16  Javier Miranda  <miranda@adacore.com>

        * einfo.adb (Set_Default_Init_Cond_Procedure): Allow calls setting
        this attribute to Empty (only if the attribute has not been set).
        * sem_util.adb (Build_Default_Init_Cond_Procedure_Body):
        No action needed if the spec was not built.
        (Build_Default_Init_Cond_Procedure_Declaration): The spec is
        not built if DIC is set to NULL or no condition was specified.
        * exp_ch3.adb (Expand_N_Object_Declaration): Check availability
        of the Init_Cond procedure before generating code to call it.

2016-06-16  Emmanuel Briot  <briot@adacore.com>

        * s-regpat.adb: Fix invalid index check when matching end-of-line
        on substrings.

2016-06-16  Arnaud Charlet  <charlet@adacore.com>

        * gnat1drv.adb: Minor reformatting.

2016-06-16  Ed Schonberg  <schonberg@adacore.com>

        * sem_ch3.adb (Check_Entry_Contracts): New procedure, subsidiary
        of Analyze_Declarations, that performs pre-analysis of
        pre/postconditions on entry declarations before full analysis
        is performed after entries have been converted into procedures.
        Done solely to capture semantic errors.
        * sem_attr.adb (Analyze_Attribute, case 'Result): Add guard to
        call to Denote_Same_Function.

2016-06-16  Emmanuel Briot  <briot@adacore.com>

        * g-comlin.adb: Fix minor memory leak in GNAT.Command_Line.

2016-06-16  Hristian Kirtchev  <kirtchev@adacore.com>

        * exp_ch7.adb (Find_Last_Init): Remove obsolete code. The
        logic is now performed by Process_Object_Declaration.
        (Process_Declarations): Recognize a controlled deferred
        constant which is in fact initialized by means of a
        build-in-place function call as needing finalization actions.
        (Process_Object_Declaration): Insert the counter after the
        build-in-place initialization call for a controlled object. This
        was previously done in Find_Last_Init.
        * exp_util.adb (Requires_Cleanup_Actions): Recognize a controlled
        deferred constant which is in fact initialized by means of a
        build-in-place function call as needing finalization actions.

2016-06-16  Justin Squirek  <squirek@adacore.com>

        * exp_aggr.adb (Expand_Array_Aggregate): Minor comment changes and
        additional style fixes.
        * exp_ch7.adb: Minor typo fixes and reformatting.

2016-06-16  Justin Squirek  <squirek@adacore.com>

        * sem_ch3.adb (Analyze_Object_Declaration): Add a missing check
        for optimized aggregate arrays with qualified expressions.
        * exp_aggr.adb (Expand_Array_Aggregate): Fix block and
        conditional statement in charge of deciding whether to perform
        in-place expansion. Specifically, use Parent_Node to jump over
        the qualified expression to the object declaration node. Also,
        a check has been inserted to skip the optimization if SPARK 2005
        is being used in strict adherence to RM 4.3(5).

2016-06-16  Tristan Gingold  <gingold@adacore.com>

        * sem_prag.adb (Analyze_Pragma): Simplify code
        for Pragma_Priority.

2016-06-16  Eric Botcazou  <ebotcazou@adacore.com>

        * sem_util.ads (Indexed_Component_Bit_Offset): Declare.
        * sem_util.adb (Indexed_Component_Bit_Offset): New
        function returning the offset of an indexed component.
        (Has_Compatible_Alignment_Internal): Call it.
        * sem_ch13.adb (Offset_Value): New function returning the offset of an
        Address attribute reference from the underlying entity.
        (Validate_Address_Clauses): Call it and take the offset into
        account for the size warning.

2016-06-16  Hristian Kirtchev  <kirtchev@adacore.com>

        * bindgen.adb, exp_util.adb, sem_ch9.adb, sem_util.adb: Minor
        reformatting.

2016-06-16  Gary Dismukes  <dismukes@adacore.com>

        * sem_ch9.adb, sem_util.ads, sem_res.adb: Minor reformatting and typo
        fixes.

2016-06-16  Javier Miranda  <miranda@adacore.com>

        * sem_res.adb (Resolve): Under relaxed RM semantics silently
        replace occurrences of null by System.Null_Address.
        * sem_ch4.adb (Analyze_One_Call, Operator_Check): Under
        relaxed RM semantics silently replace occurrences of null by
        System.Null_Address.
        * sem_util.ad[sb] (Null_To_Null_Address_Convert_OK): New subprogram.
        (Replace_Null_By_Null_Address): New subprogram.

2016-06-16  Bob Duff  <duff@adacore.com>

        * exp_util.adb (Is_Controlled_Function_Call):
        This was missing the case where the call is in prefix format,
        with named notation, as in Obj.Func (Formal => Actual).

2016-06-16  Hristian Kirtchev  <kirtchev@adacore.com>

        * exp_attr.adb, inline.adb, sem_attr.adb, sem_elab.adb: Minor
        reformatting.

2016-06-16  Bob Duff  <duff@adacore.com>

        * sem_util.adb (Collect): Avoid Empty Full_T. Otherwise Etype
        (Full_T) crashes when assertions are on.
        * sem_ch12.adb (Matching_Actual): Correctly handle the case where
        "others => <>" appears in a generic formal package, other than
        by itself.

2016-06-16  Arnaud Charlet  <charlet@adacore.com>

        * usage.adb: Remove confusing comment in usage line.
        * bindgen.adb: Fix binder generated file in codepeer mode wrt
        recent additions.

2016-06-16  Javier Miranda  <miranda@adacore.com>

        * restrict.adb (Check_Restriction_No_Use_Of_Entity): Avoid
        never-ending loop, code cleanup; adding also support for Text_IO.
        * sem_ch8.adb (Find_Expanded_Name): Invoke
        Check_Restriction_No_Use_Entity.

2016-06-16  Tristan Gingold  <gingold@adacore.com>

        * exp_ch9.adb: Minor comment fix.
        * einfo.ads (Has_Protected): Clarify comment.
        * sem_ch9.adb (Analyze_Protected_Type_Declaration): Do not
        consider private protected types declared in the runtime for
        the No_Local_Protected_Types restriction.

2016-06-14  Ed Schonberg  <schonberg@adacore.com>

        * sem_ch6.adb (Set_Actual_Subtypes): Do not generate actual
        subtypes for unconstrained formals when analyzing the generated
        body of an expression function, because it may lead to premature
        and misplaced freezing of the types of formals.

2016-06-14  Gary Dismukes  <dismukes@adacore.com>

        * sem_elab.adb, sem_ch4.adb: Minor reformatting and typo fix.

2016-06-14  Tristan Gingold  <gingold@adacore.com>

        * einfo.adb (Set_Has_Timing_Event): Add assertion.
        * sem_util.ads, sem_util.adb (Propagate_Concurrent_Flags): New
        name for Propagate_Type_Has_Flags.
        * exp_ch3.adb, sem_ch3.adb, sem_ch7.adb, sem_ch9.adb: Adjust after
        renaming.

2016-06-14  Bob Duff  <duff@adacore.com>

        * sem_elab.adb (Check_A_Call): Do nothing if the callee is
        (or is in) an instance, and the caller is outside.  Misc cleanup.

2016-06-14  Javier Miranda  <miranda@adacore.com>

        * sem_ch4.adb (Analyze_Quantified_Expression):
        Generating C code avoid spurious warning on loop variable of
        inlinined postconditions.

2016-06-14  Javier Miranda  <miranda@adacore.com>

        * sem_attr.adb (Analyze_Attribute_Old_Result): Adding assertion.
        (Analyze_Attribute [Attribute_Old]): Generating C handle
        analysis of 'old in inlined postconditions.
        (Analyze_Attribute [Attribute_Result]): Generating C handle analysis
        of 'result in inlined postconditions.
        * exp_attr.adb (Expand_N_Attribute_Reference [Attribute_Old]):
        Generating C handle expansion of 'old in inlined postconditions.
        * inline.adb (Declare_Postconditions_Result): New subprogram.
        * sem_ch12.adb (Copy_Generic_Node): Copy pragmas generated from
        aspects when generating C code since pre/post conditions are
        inlined and the frontend inlining relies on this routine to
        perform inlining.
        * exp_ch6.adb (Inlined_Subprogram): Replace Generate_C_Code
        by Modify_Tree_For_C.
        * exp_unst.adb (Visit_Node): Searching for up-level references
        skip entities defined in inlined subprograms.

2016-06-14  Hristian Kirtchev  <kirtchev@adacore.com>

        * sem_ch7.adb, sem_ch12.adb, freeze.adb, lib-xref.ads, exp_ch3.adb:
        Minor reformatting.

2016-06-14  Bob Duff  <duff@adacore.com>

        * sem_elab.adb: Do nothing if the callee is intrinsic.
        * sinfo.ads, einfo.ads: Minor comment fixes.

2016-06-14  Ed Schonberg  <schonberg@adacore.com>

        * contracts.adb (Has_Null_Body): Move to sem_util, for general
        availability.
        * sem_util.ads, sem_util.adb (Has_Null_Body): Predicate to
        determine when an internal procedure created for some assertion
        checking (e.g. type invariant) is a null procedure. Used to
        eliminate redundant calls to such procedures when they apply to
        components of composite types.
        * exp_ch3.adb (Build_Component_Invariant_Call): Do not add call
        if invariant procedure has a null body.

2016-06-14  Thomas Quinot  <quinot@adacore.com>

        * g-socket.ads (Check_Selector): Clarify effect on IN OUT socket
        set parameters.

2016-06-14  Hristian Kirtchev  <kirtchev@adacore.com>

        * exp_ch4.adb (Process_Action): Pass the action
        list to Process_Transient_Object.
        (Process_If_Case_Statements): Pass the action list to
        Process_Transient_Object.
        (Process_Transient_Object): Add new parameter Stmts and update the
        comment on usage. When the context is a Boolean evaluation, insert
        any finalization calls after the last statement of the construct.

2016-06-14  Tristan Gingold  <gingold@adacore.com>

        * einfo.adb, einfo.ads (Has_Timing_Event,
        Set_Has_Timing_Event): Add Has_Timing_Event flag.
        (Write_Entity_Flags): Display * sem_util.ads, sem_util.adb:
        (Propagate_Type_Has_Flags): New procedure to factorize code.
        * exp_ch3.adb (Expand_Freeze_Array_Type,
        Expand_Freeze_Record_Type): Call Propagate_Type_Has_Flags.
        * sem_ch3.adb (Access_Type_Decalaration): Initialize
        Has_Timing_Event flag.  (Analyze_Object_Declaration):
        Move code that check No_Local_Timing_Events near
        the code that check No_Local_Protected_Objects.
        (Analyze_Private_Extension_Declaration, Array_Type_Declaration)
        (Build_Derived_Type, Copy_Array_Base_Type_Attributes,
        Process_Full_View) (Record_Type_Definition): Call
        Propagate_Type_Has_Flags.
        * sem_ch4.adb (Analyze_Allocator): Check No_Local_Timing_Events.
        * sem_ch7.adb (New_Private_Type): Set Has_Timing_Event on the
        Timing_Event type.
        (Uninstall_Declaration): Call Propagate_Type_Has_Flags.
        * sem_ch9.adb (Analyze_Protected_Definition): Call
        Propagate_Type_Has_Flags.

2016-06-14  Arnaud Charlet  <charlet@adacore.com>

        * sem.ads: Minor style fix.

2016-06-14  Ed Schonberg  <schonberg@adacore.com>

        * sem_ch12.adb (Analyze_Associations): An actual parameter
        with a box must be included in the count of actuals, to detect
        possible superfluous named actuals that do not match any of the
        formals of the generic unit in a formal package declaration.

2016-06-14  Justin Squirek  <squirek@adacore.com>

        * sem_ch3.adb (Analyze_Object_Declaration): Fix formatting
        of error output related to SPARK RM 6.1.7(3) and pragma
        Extensions_Visible.
        * sem_ch4.adb (Analyze_Type_Conversion): Fix formatting of error
        output related to SPARK RM 6.1.7(3) and pragma Extensions_Visible.
        * sem_prag.adb (Analyze_Pragma): Fix formatting of error output
        related to SPARK RM 7.1.2(15) and pragma Volatile_Function
        so that the values True and False are no longer surrounded by
        double quotes.
        * sem_res.adb (Resolve_Actuals): Fix formatting of error output
        related to SPARK RM 6.1.7(3) and pragma Extensions_Visible.

2016-06-14  Arnaud Charlet  <charlet@adacore.com>

        * gnat1drv.adb (Adjust_Global_Switches): Enable access checks
        in codepeer mode.
        * freeze.adb: Minor grammar fix in comment.
2016-06-14  Hristian Kirtchev  <kirtchev@adacore.com>

        * lib.adb: Minor reformatting.
        * sem_util.adb (Is_OK_Volatile_Context): Do
        include Address in the supported attributes.

2016-06-14  Hristian Kirtchev  <kirtchev@adacore.com>

        * exp_ch4.adb (Expand_N_Case_Expression):
        Code cleanup. Finalize any transient controlled
        objects on exit from a case expression alternative.
        (Expand_N_If_Expression): Code cleanup.
        (Process_Actions): Removed.
        (Process_If_Case_Statements): New routine.
        (Process_Transient_Object): Change the name of formal Rel_Node to
        N and update all occurrences. Update the comment on usage. When
        the type of the context is Boolean, the proper insertion point
        for the finalization call is after the last declaration.

2016-06-14  Ed Schonberg  <schonberg@adacore.com>

        * lib-xref.ads, lib-xref.adb (Has_Deferred_Reference): new
        predicate to determine whether an entity appears in a context
        for which a Deferred_Reference was created, because it is not
        possible to determine when reference is analyzed whether it
        appears in a context in which the entity is modified.
        * sem_ch5.adb (Analyze_Statement): Do not emit a useless warning
        on assignment for an entity that has a deferred_reference.

2016-06-14  Javier Miranda  <miranda@adacore.com>

        * sem_res.adb (Resolve_Actuals): Generate a reference to actuals that
        come from source. Previously the reference was generated only if the
        call comes from source but the call may be rewritten by the expander
        thus causing the notification of spurious warnings.

2016-06-14  Arnaud Charlet  <charlet@adacore.com>

        * gnat1drv.adb: Remove further references to AAMP.
        * checks.adb (Apply_Scalar_Range_Check): Take
        Check_Float_Overflow info account.
        * live.ads, live.adb Added subprogram headers and
        start-of-processing-for comments.
        * sem_ch12.adb (Instantiate_Package_Body): Do not suppress
        checks when instantiating runtime units in CodePeer mode.

2016-06-14  Arnaud Charlet  <charlet@adacore.com>

        * exp_ch3.adb (Expand_N_Object_Declaration): Only consider
        nodes from sources.

2016-06-14  Arnaud Charlet  <charlet@adacore.com>

        * switch-c.adb, gnat1drv.adb (Adjust_Global_Switches): Only disable
        simple value propagation in CodePeer mode when warnings are disabled.
        (Scan_Front_End_Switches): Enable relevant front-end switches
        when using -gnateC.

2016-06-14  Hristian Kirtchev  <kirtchev@adacore.com>

        * sem_util.adb (Is_OK_Volatile_Context): A
        reference to a volatile object is considered OK if appears as
        the prefix of attributes Address, Alignment, Component_Size,
        First_Bit, Last_Bit, Position, Size, Storage_Size.

2016-06-14  Yannick Moy  <moy@adacore.com>

        * lib-xref-spark_specific.adb (Add_SPARK_File): Do not traverse
        subunits directly, as they are already traversed as part of the
        top-level unit to which they belong.
        (Add_SPARK_Xrefs): Add assertions to ensure correct sorting.
        (Generate_Dereference): Use unique definition place for special
        variable __HEAP, to ensure correct sorting of references.
        * lib-xref.adb (Generate_Reference): Use top-level unit in case
        of subunits.
        * lib.adb, lib.ads (Get_Top_Level_Code_Unit): New functions that
        compute the top-level code unit for a source location of AST node,
        that go past subunits.

2016-06-13  Eric Botcazou  <ebotcazou@adacore.com>

        * gcc-interface/decl.c (gnat_to_gnu_subprog_type): Build only a minimal
        PARM_DECL when the parameter type is dummy.
        * gcc-interface/trans.c (Call_to_gnu): Translate formal types before
        formal objects.

2016-06-13  Eric Botcazou  <ebotcazou@adacore.com>

        * gcc-interface/decl.c (gnat_to_gnu_entity) <E_Variable>: Deal with
        PLUS_EXPR in the expression of a renaming.

2016-06-13  Eric Botcazou  <ebotcazou@adacore.com>

        * gcc-interface/utils2.c (known_alignment) <CALL_EXPR>: Deal specially
        with calls to malloc.

2016-06-11  Eric Botcazou  <ebotcazou@adacore.com>

        * gcc-interface/trans.c (build_binary_op_trapv): If no operand is a
        constant, use the generic implementation of the middle-end; otherwise
        turn the dynamic conditions into static conditions and simplify.

2016-06-11  Eric Botcazou  <ebotcazou@adacore.com>

        * gcc-interface/trans.c (Case_Statement_to_gnu): Deal with characters.

2016-06-11  Pierre-Marie de Rodat  <derodat@adacore.com>

        * gcc-interface/decl.c (gnat_to_gnu_entity): Do not clobber
        gnat_entity_name with temporary names for XUP and XUT types.

2016-06-10  Martin Sebor  <msebor@redhat.com>

        PR c/71392
        * gcc/ada/gcc-interface/utils.c (handle_nonnull_attribute): Accept
        the nonnull attribute in type-generic builtins.

2016-06-06  Eric Botcazou  <ebotcazou@adacore.com>

        * gcc-interface/decl.c (Gigi_Equivalent_Type): Make sure equivalent
        types are present before returning them.  Remove final assertion.
        (gnat_to_gnu_entity) <E_Access_Protected_Subprogram_Type>: Adjust to
        above change.
        <E_Protected_Type>: Likewise.

2016-06-06  Eric Botcazou  <ebotcazou@adacore.com>

        * gcc-interface/trans.c (elaborate_all_entities_for_package): Also do
        not elaborate Itypes.

2016-06-06  Eric Botcazou  <ebotcazou@adacore.com>

        * gcc-interface/utils.c (gnat_internal_attribute_table): Add support
        for noinline and noclone attributes.
        (handle_noinline_attribute): New handler.
        (handle_noclone_attribute): Likewise.

2016-06-06  Eric Botcazou  <ebotcazou@adacore.com>

        * gcc-interface/trans.c (process_type): Beef up comment.

2016-06-06  Eric Botcazou  <ebotcazou@adacore.com>

        * gcc-interface/utils2.c (build_call_alloc_dealloc): Do not substitute
        placeholder expressions here but...
        * gcc-interface/trans.c (gnat_to_gnu) <N_Free_Statement>: ...here.
        Make an exception to the protection of a CALL_EXPR result with an
        unconstrained type only in the same cases as Call_to_gnu.

2016-06-06  Eric Botcazou  <ebotcazou@adacore.com>

        * gcc-interface/trans.c (gnat_to_gnu): Rework special code dealing
        with boolean rvalues and set the location directly.  Do not set the
        location in the other cases for a simple name.
        (gnat_to_gnu_external): Clear the location on the expression.

2016-06-06  Eric Botcazou  <ebotcazou@adacore.com>

        * gcc-interface/decl.c (gnat_to_gnu_entity) <E_Component>: Remove
        useless 'else' statements and tidy up.
        <E_Array_Subtype>: Fully deal with the declaration here.
        <E_Incomplete_Type>: Use properly-typed constant.
        Assert that we don't apply the special type treatment to dummy types.
        Separate this treatment from the final back-annotation and simplify
        the condition for the RM size.
        (gnat_to_gnu_param): Add GNU_PARAM_TYPE parameter and adjust.
        (gnat_to_gnu_subprog_type): Ajust call to gnat_to_gnu_param.
        * gcc-interface/trans.c (gnat_to_gnu) <N_Subprogram_Declaration>: Add
        comment.
        (process_freeze_entity): Remove obsolete code.
        (process_type): Minor tweaks.

2016-06-06  Eric Botcazou  <ebotcazou@adacore.com>

        * einfo.ads (Returns_Limited_View): Remove.
        (Set_Returns_Limited_View ): Likewise.
        * einfo.adb (Returns_Limited_View): Likewise.
        (Set_Returns_Limited_View ): Likewise.
        * freeze.adb (Late_Freeze_Subprogram): Remove.
        (Freeze_Entity): Do not defer the freezing of functions returning an
        incomplete type coming from a limited context.

2016-06-06  Eric Botcazou  <ebotcazou@adacore.com>

        * gcc-interface/gigi.h (finish_subprog_decl): Add ASM_NAME parameter.
        * gcc-interface/decl.c (gnu_ext_name_for_subprog): New function.
        (gnat_to_gnu_entity) <E_Subprogram_Type>: Do not check compatibility
        of profiles for builtins here...  Call gnu_ext_name_for_subprog.
        Also update profiles if pointers to limited_with'ed types are
        updated.
        (gnat_to_gnu_param): Restore the correct source location information
        for vector ABI warnings.
        (associate_subprog_with_dummy_type): Add comment about AI05-019.
        Set TYPE_DUMMY_IN_PROFILE_P flag unconditionally.
        (update_profile): Deal with builtin declarations.
        Call gnu_ext_name_for_subprog.  Adjust call to finish_subprog_decl.
        (update_profiles_with): Add comment.
        (gnat_to_gnu_subprog_type): Reuse the return type if it is complete.
        Likewise for parameter declarations in most cases.  Do not change
        the return type for the CICO mechanism if the profile is incomplete.
        ...but here instead.  Always reset the slot for the parameters.
        * gcc-interface/utils.c (create_subprog_decl): Call
        gnu_ext_name_for_subprog.  Do not set the assembler name here but...
        (finish_subprog_decl): ...but here instead.  Add ASM_NAME parameter.

2016-06-06  Eric Botcazou  <ebotcazou@adacore.com>

        * exp_ch9.adb (Expand_N_Protected_Type_Declaration): Insert the
        declaration of the corresponding record type before that of the
        unprotected version of the subprograms that operate on it.
        (Expand_Access_Protected_Subprogram_Type): Declare the Equivalent_Type
        just before the original type.
        * sem_ch3.adb (Handle_Late_Controlled_Primitive): Point the current
        declaration to the newly created declaration for the primitive.
        (Analyze_Subtype_Declaration): Remove obsolete code forcing the
        freezing of the subtype before its declaration.
        (Replace_Anonymous_Access_To_Protected_Subprogram): Insert the new
        declaration in the nearest enclosing scope for formal parameters too.
        (Build_Derived_Access_Type): Restore the status of the created Itype
        after it is erased by Copy_Node.
        * sem_ch6.adb (Exchange_Limited_Views): Remove guard on entry.
        (Analyze_Subprogram_Body_Helper): Call Exchange_Limited_Views only if
        the specification is present.
        Move around the code changing the designated view of the return type
        and save the original view.  Restore it on exit.
        * sem_ch13.adb (Build_Predicate_Function_Declaration): Always insert
        the declaration right after that of the type.

2016-06-01  Simon Wright  <simon@pushface.org>

        PR ada/71358
        * g-comlin.adb (Display_Section_Help): Do not dereference
        Config.Switches if it's null.
        (Getopt): Likewise.

2016-05-31  Eric Botcazou  <ebotcazou@adacore.com>

        * s-osinte-kfreebsd-gnu.ads (clock_getres): Define.
        (Get_Page_Size): Remove duplicate and return int.

2016-05-31  Jan Sommer  <soja-lists@aries.uberspace.de>

        PR ada/71317
        * s-osinte-rtems.ads (clock_getres): Define.
        (Get_Page_Size): Remove duplicate and return int.

2016-05-20  Eric Botcazou  <ebotcazou@adacore.com>

        * gcc-interface/decl.c (gnat_to_gnu_entity) <E_Signed_Integer_Subtype>:
        Make same-sized subtypes of signed base types signed.
        * gcc-interface/utils.c (make_type_from_size): Adjust to above change.
        (unchecked_convert): Likewise.

2016-05-16  Eric Botcazou  <ebotcazou@adacore.com>

        * gcc-interface/decl.c (gnat_to_gnu_entity) <E_Variable>: Do not build
        a specific type for the object if it is deemed a constant.

2016-05-16  Eric Botcazou  <ebotcazou@adacore.com>

        * freeze.adb (Freeze_Record_Type): Extend pragma Implicit_Packing to
        components of any elementary types and of composite types.

2016-05-16  Eric Botcazou  <ebotcazou@adacore.com>

        * freeze.adb (Freeze_Array_Type): Call Addressable predicate instead
        of testing for individual sizes.
        (Freeze_Entity): Rework implementation of pragma Implicit_Packing for
        array types, in particular test for suitable sizes upfront and do not
        mimic the processing that will be redone later in Freeze_Array_Type.

2016-05-16  Eric Botcazou  <ebotcazou@adacore.com>

        * gcc-interface/trans.c (elaborate_all_entities_for_package): Also skip
        formal objects.

2016-05-16  Eric Botcazou  <ebotcazou@adacore.com>

        * doc/gnat_rm/implementation_defined_attributes.rst
        (Scalar_Storage_Order): Adjust restriction for packed array types.
        * einfo.ads (Is_Bit_Packed_Array): Adjust description.
        (Is_Packed): Likewise.
        (Is_Packed_Array_Impl_Type): Likewise.
        (Packed_Array_Impl_Type): Likewise.
        * exp_ch4.adb (Expand_N_Indexed_Component): Do not do anything special
        if the prefix is not a packed array implemented specially.
        * exp_ch6.adb (Expand_Actuals): Expand indexed components only for
        bit-packed array types.
        * exp_pakd.adb (Install_PAT): Set Is_Packed_Array_Impl_Type flag on
        the PAT before analyzing its declaration.
        (Create_Packed_Array_Impl_Type): Remove redundant statements.
        * freeze.adb (Check_Component_Storage_Order): Reject packed array
        components only if they are bit packed.
        (Freeze_Array_Type): Fix logic detecting bit packing and do not bit
        pack for composite types whose size is multiple of a byte.
        Create the implementation type for packed array types only when it is
        needed, i.e. bit packing or packing because of holes in index types.
        Make sure the Has_Non_Standard_Rep and Is_Packed flags agree.
        * gcc-interface/gigi.h (make_packable_type): Add MAX_ALIGN parameter.
        * gcc-interface/decl.c (gnat_to_gnu_entity) <E_Signed_Integer_Subtype>:
        Call maybe_pad_type instead of building the padding type manually.
        (gnat_to_gnu_entity) <E_Array_Subtype>: Do not assert that
        Packed_Array_Impl_Type is present for packed arrays.
        (gnat_to_gnu_component_type): Also handle known alignment for packed
        types by passing it to make_packable_type.
        * gcc-interface/utils.c (make_packable_type): Add MAX_ALIGN parameter
        and deal with it in the array case.  Adjust recursive call.  Simplify
        computation of new size and cap the alignment to BIGGEST_ALIGNMENT.

2016-05-16  Thomas Quinot  <quinot@adacore.com>

        * freeze.adb (Check_Component_Storage_Order): Also get full view of
        enclosing type.

2016-05-16  Eric Botcazou  <ebotcazou@adacore.com>

        * exp_util.adb (Remove_Side_Effects): Also make a constant if we need
        to capture the value for a small not by-reference record type.
        * freeze.ads (Check_Compile_Time_Size): Adjust comment.
        * freeze.adb (Set_Small_Size): Likewise.  Accept a size in the range
        of 33 .. 64 bits.
        (Check_Compile_Time_Size): Merge scalar and access type cases. Change
        variable name in array type case.  For the computation of the packed
        size, deal with record components and remove redundant test.
        (Freeze_Array_Type): Also adjust packing status when the size of the
        component type is in the range 33 .. 64 bits.
        * doc/gnat_rm/representation_clauses_and_pragmas.rst: Turn primitive
        into elementary type throughout.  Minor tweaks.
        (Alignment Clauses): Document actual alignment of packed array types.
        (Pragma Pack for Arrays): List only the 3 main cases and adjust.  Add
        "simple" to the record case.  Document effect on non packable types.
        (Pragma Pack for Records): Likewise.  Add record case and adjust.

2016-05-16  Eric Botcazou  <ebotcazou@adacore.com>

        * gcc-interface/Make-lang.in (GNATMAKE_FOR_HOST): In the canadian
        cross case, use host_noncanonical instead of host as prefix.
        (GNATBIND_FOR_HOST): Likewise.
        (GNATLINK_FOR_HOST): Likewise.
        (GNATLS_FOR_HOST): Likewise.

2016-05-06  Eric Botcazou  <ebotcazou@adacore.com>

        PR ada/70969
        * system-darwin-ppc64.ads: Add pragma No_Elaboration_Code_All.
        * system-linux-armeb.ads: Likewise.
        * system-linux-mips64el.ads: Likewise.
        * system-linux-mips.ads: Likewise.
        * system-linux-mipsel.ads: Likewise.
        * system-linux-ppc64.ads: Likewise.
        * system-linux-sparcv9.ads: Likewise.
        * system-rtems.ads: Likewise.

2016-05-04  Samuel Thibault  <samuel.thibault@ens-lyon.org>

        * s-osinte-gnu.ads (Get_Page_Size): Return int and use getpagesize
        instead of __getpagesize.

2016-05-02  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

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

2016-05-02  Tristan Gingold  <gingold@adacore.com>

        * fname.adb (Is_Predefined_File_Name): Also consider non-krunched
        i-* names.

2016-05-02  Ed Schonberg  <schonberg@adacore.com>

        * sem_util.adb (Aggregate_Constraint_Checks): Separate
        accessibility checks and non-null checks for aggregate components,
        to prevent spurious accessibility errors.

2016-05-02  Ed Schonberg  <schonberg@adacore.com>

        * sem_ch3.adb (OK_For_Limited_Init): A type conversion is not
        always legal in the in-place initialization of a limited entity
        (e.g. an allocator).
        * sem_res.adb (Resolve_Allocator): Improve error message with RM
        reference  when allocator expression is illegal.

2016-05-02  Ed Schonberg  <schonberg@adacore.com>

        * exp_ch6.adb (Expand_Call): When inlining a call to a function
        declared in a package instance, locate the instance node of the
        package after the actual package declaration. skipping over
        pragmas that may have been introduced when the generic unit
        carries aspects that are transformed into pragmas.

2016-05-02  Bob Duff  <duff@adacore.com>

        * s-memory.adb (Alloc, Realloc): Move checks
        for Size = 0 or size_t'Last into the Result = System.Null_Address
        path for efficiency. Improve comments (based on actual C language
        requirements for malloc).
        * exp_util.adb (Build_Allocate_Deallocate_Proc): Optimize the
        case where we are using the default Global_Pool_Object, and we
        don't need the heavy finalization machinery.

2016-05-02  Gary Dismukes  <dismukes@adacore.com>

        * exp_util.ads, sem_ch12.adb: Minor reformatting.

2016-05-02  Javier Miranda  <miranda@adacore.com>

        * exp_util.ads, exp_util.adb (Force_Evaluation): Adding new formal.
        (Remove_Side_Effects): Adding a new formal.
        * exp_ch6.adb (Expand_Simple_Function_Return): Generating the
        call to the _Postconditions procedure ensure that side-effects
        are unconditionally removed.

2016-05-02  Ed Schonberg  <schonberg@adacore.com>

        * sem_ch12.adb (Check_Formal_Package_Instance, Check_Mismatch):
        Use original node to determine whether the declaration is for
        a formal type declaration, to take into account that formwl
        private types are rewritten as private extension declarations
        to simplify semantic analysis.

2016-05-02  Gary Dismukes  <dismukes@adacore.com>

        * exp_ch9.adb, sem_ch6.adb, sem_ch6.ads: Minor reformatting and typo
        fixes.

2016-05-02  Hristian Kirtchev  <kirtchev@adacore.com>

        * sem_ch3.adb, exp_ch9.adb, einfo.adb, sem_ch4.adb, sem_ch6.adb: Minor
        reformatting.

2016-05-02  Ed Schonberg  <schonberg@adacore.com>

        * exp_ch4.adb (Expand_N_Allocator): If the designated type
        is a private derived type with no discriminants, examine its
        underlying_full_view to determine whether the full view has
        defaulted discriminants, so their defaults can be used in the
        call to the initialization procedure for the designated object.

2016-05-02  Hristian Kirtchev  <kirtchev@adacore.com>

        * exp_prag.adb, comperr.adb: Minor reformatting.

2016-05-02  Ed Schonberg  <schonberg@adacore.com>

        * exp_pakd.adb (Rj_Unchecked_Convert_To): Do not perform an
        unchecked conversion if the source size is 0 (indicating that
        its RM size is unknown). This will happen with packed arrays of
        non-discrete types, in which case the component type is known
        to match.

2016-05-02  Arnaud Charlet  <charlet@adacore.com>

        * debug.adb: Reserve -gnatd.V.

2016-05-02  Javier Miranda  <miranda@adacore.com>

        * sem_ch3.adb (Process_Full_View): Remove from visibility
        wrappers of synchronized types to avoid spurious errors with
        their wrapped entity.
        * exp_ch9.adb (Build_Wrapper_Spec): Do not generate the wrapper
        if no interface primitive is covered by the subprogram and this is
        not a primitive declared between two views; see Process_Full_View.
        (Build_Protected_Sub_Specification): Link the dispatching
        subprogram with its original non-dispatching protected subprogram
        since their names differ.
        (Expand_N_Protected_Type_Declaration):
        If a protected subprogram overrides an interface primitive then
        do not build a wrapper if it was already built.
        * einfo.ads, einfo.adb (Original_Protected_Subprogram): New attribute.
        * sem_ch4.adb (Names_Match): New subprogram.
        * sem_ch6.adb (Check_Synchronized_Overriding): Moved
        to library level and defined in the public part of the
        package to invoke it from Exp_Ch9.Build_Wrapper_Spec
        (Has_Matching_Entry_Or_Subprogram): New subprogram.
        (Report_Conflict): New subprogram.

2016-05-02  Jerome Lambourg  <lambourg@adacore.com>

        * s-unstyp.ads: Code cleanups.

2016-05-02  Hristian Kirtchev  <kirtchev@adacore.com>

        * sem_ch13.adb (Size_Too_Small_Error): Fix the error message format.

2016-05-02  Ed Schonberg  <schonberg@adacore.com>

        * exp_prag.adb (Expand_attributes_In_Consequence,
        Expand_Attributes): If the prefix of'Old is an unconstrained type,
        for example an unconstrained formal of the enclosing subprogram,
        create an object declaration with an expression to obtain the
        actual subtype of the temporary.

2016-05-02  Arnaud Charlet  <charlet@adacore.com>

        * comperr.adb (Delete_SCIL_Files): Add missing handling of
        N_Subprogram_Declaration.

2016-05-02  Gary Dismukes  <dismukes@adacore.com>

        * exp_ch5.adb, exp_ch7.adb, exp_ch7.ads, checks.adb, sem_attr.adb,
        gnat1drv.adb, sem_ch4.adb, sem_ch13.adb: Minor reformatting and typo
        fixes.
        * sem_prag.adb, sem_ch12.adb: Minor typo fixes.

2016-05-02  Ed Schonberg  <schonberg@adacore.com>

        * exp_ch6.adb (Make_Build_In_Place_Call_In_Allocator): The
        function call may be wrapped in an explicit type conversion.

2016-05-02  Jerome Lambourg  <lambourg@adacore.com>

        * interfac.ads: use pragma No_Elaboration_Code_All.
        * s-unstyp.ads: s-unstyp.ads: use pragma No_Elaboration_Code_All.

2016-05-02  Ed Schonberg  <schonberg@adacore.com>

        * sem.adb (Analyze: If node is an error node previously created
        by the parser, disable expansion to prevent subsequent glitches
        in error recovery.

2016-05-02  Hristian Kirtchev  <kirtchev@adacore.com>

        * sem_ch13.adb (Alignment_Error): Removed.
        (Get_Alignment_Value): Code cleanup.

2016-05-02  Tristan Gingold  <gingold@adacore.com>

        * sem_ch3.adb (Analyze_Object_Declaration): Use Has_Protected
        to check for the no local protected objects restriction.

2016-05-02  Hristian Kirtchev  <kirtchev@adacore.com>

        * einfo.adb Anonymous_Master now uses Node35.
        (Anonymous_Master): Update the assertion and node reference.
        (Set_Anonymous_Master): Update the assertion and node reference.
        (Write_Field35_Name): Add output for Anonymous_Master.
        (Write_Field36_Name): The output is now undefined.
        * einfo.ads Update the node and description of attribute
        Anonymous_Master. Remove prior occurrences in entities as this
        is now a type attribute.
        * exp_ch3.adb (Expand_Freeze_Array_Type): Remove local variable
        Ins_Node. Anonymous access- to-controlled component types no
        longer need finalization masters. The master is now built when
        a related allocator is expanded.
        (Expand_Freeze_Record_Type): Remove local variable Has_AACC. Do not
        detect whether the record type has at least one component of anonymous
        access-to- controlled type. These types no longer need finalization
        masters. The master is now built when a related allocator is expanded.
        * exp_ch4.adb Remove with and use clauses for Lib and Sem_Ch8.
        (Current_Anonymous_Master): Removed.
        (Expand_N_Allocator): Call Build_Anonymous_Master to create a
        finalization master for an anonymous access-to-controlled type.
        * exp_ch6.adb (Add_Finalization_Master_Actual_To_Build_In_Place_Call):
        Call routine Build_Anonymous_Master to create a finalization master
        for an anonymous access-to-controlled type.
        * exp_ch7.adb (Allows_Finalization_Master): New routine.
        (Build_Anonymous_Master): New routine.
        (Build_Finalization_Master): Remove formal parameter
        For_Anonymous. Use Allows_Finalization_Master to determine whether
        circumstances warrant a finalization master. This routine no
        longer creates masters for anonymous access-to-controlled types.
        (In_Deallocation_Instance): Removed.
        * exp_ch7.ads (Build_Anonymous_Master): New routine.
        (Build_Finalization_Master): Remove formal parameter For_Anonymous
        and update the comment on usage.
        * sem_util.adb (Get_Qualified_Name): New routines.
        (Output_Name): Reimplemented.
        (Output_Scope): Removed.
        * sem_util.ads (Get_Qualified_Name): New routines.

2016-05-02  Hristian Kirtchev  <kirtchev@adacore.com>

        * debug.adb: Document the use of switch -gnatd.H.
        * gnat1drv.adb (Adjust_Global_Switches): Set ASIS_GNSA mode when
        -gnatd.H is present.
        (Gnat1drv): Suppress the call to gigi when ASIS_GNSA mode is active.
        * opt.ads: Add new option ASIS_GNSA_Mode.
        * sem_ch13.adb (Alignment_Error): New routine.
        (Analyze_Attribute_Definition_Clause): Suppress certain errors in
        ASIS mode for attribute clause Alignment, Machine_Radix, Size, and
        Stream_Size.
        (Check_Size): Use routine Size_Too_Small_Error to
        suppress certain errors in ASIS mode.
        (Get_Alignment_Value): Use routine Alignment_Error to suppress certain
        errors in ASIS mode.
        (Size_Too_Small_Error): New routine.

2016-05-02  Arnaud Charlet  <charlet@adacore.com>

        * spark_xrefs.ads Description of the spark cross-references
        clarified; small style fixes.
        * lib-xref-spark_specific.adb (Add_SPARK_Scope,
        Detect_And_Add_SPARK_Scope): consider protected types and bodies
        as yet another scopes.
        (Enclosing_Subprogram_Or_Library_Package): refactored using
        Hristian's suggestions; added support for scopes of protected
        types and bodies; fix for entries to return the scope of the
        enclosing concurrent type, which is consistent with what is
        returned for protected subprograms.
        * sem_intr.adb: Minor style fix in comment.

2016-05-02  Hristian Kirtchev  <kirtchev@adacore.com>

        * lib-xref.ads, lib-xref-spark_specific.adb, get_spark_xrefs.adb,
        put_spark_xrefs.adb: Minor reformatting.

2016-05-02  Doug Rupp  <rupp@adacore.com>

        * g-traceb.ads: Document traceback for ARM.

2016-05-02  Javier Miranda  <miranda@adacore.com>

        * exp_disp.adb (Make_Tags): Do not generate the
        external name of interface tags adding the suffix counter since
        it causes problems at link time when the IP routines are inlined
        across units with optimization.

2016-05-02  Ed Schonberg  <schonberg@adacore.com>

        * einfo.ads, einfo.adb (Predicates_Ignared): new flag to indicate
        that predicate checking is disabled for predicated subtypes in
        the context of an Assertion_Policy pragma.
        * checks.adb (Apply_Predicate_Check): Do nothing if
        Predicates_Ignored is true.
        * exp_ch3.adb (Expand_Freeze_Enumeration_Type): If
        Predicates_Ignores is true, the function Rep_To_Pos does raise
        an exception for invalid data.
        * exp_ch4.adb (Expand_N_Type_Conversion): IF target is a predicated
        type do not apply check if Predicates_Ignored is true.
        * exp_ch5.adb (Expand_N_Case_Statement): If Predicates_Ignored
        is true, sem_prag.adb:
        * sem_ch3.adb (Analyze_Object_Declaration): If Predicates_Ignored
        is true do not emit predicate check on initializing expression.

2016-05-02  Arnaud Charlet  <charlet@adacore.com>

        * get_spark_xrefs.adb (Get_Nat, Get_Name): Initialize variables when
        they are declared; refine type of a counter from Integer to Natural.
        * sem_ch5.adb, gnatcmd.adb, s-intman-posix.adb, eval_fat.adb,
        prj.adb, sem_util.adb, s-intman-android.adb, prj-nmsc.adb, sem_ch8.adb,
        exp_ch3.adb: Minor editing.

2016-05-02  Yannick Moy  <moy@adacore.com>

        * a-tigeli.adb (Get_Line): Always set Last prior to returning.

2016-05-02  Yannick Moy  <moy@adacore.com>

        * lib-xref.adb: Minor style fix in whitespace of declarations.
        * put_spark_xrefs.adb (Put_SPARK_Xrefs): printing of strings
        refactored without loops.
        * put_spark_xrefs.ads (Write_Info_Str): new formal argument of
        generic procedure.
        * spark_xrefs.adb (Write_Info_Str): new actual in instantiation
        of generic procedure.

2016-05-02  Arnaud Charlet  <charlet@adacore.com>

        * lib-xref-spark_specific.adb (Add_SPARK_Scope): add task type scope.
        (Detect_And_Add_SPARK_Scope): detect and add task type scope.
        (Enclosing_Subprogram_Or_Package): Respect boundaries of task
        and entry declarations.
        * spark_xrefs.ads: minor typo in comment.

2016-05-02  Arnaud Charlet  <charlet@adacore.com>

        * make.adb: Minor: avoid an exception when calling gnatmake with
        no argument and gnatmake is built with checks on.
        * lib-xref-spark_specific.adb: Minor code cleanup.

2016-05-02  Ed Schonberg  <schonberg@adacore.com>

        * sem_util.adb (Normalize_Actuals): Take into account extra
        actuals that may have been introduced previously. Normally extra
        actuals are introduced when a call is expanded, but a validity
        check may copy and reanalyze a call that carries an extra actual
        (e.g. an accessibility parameter) before the call itself is
        marked Analzyed, and the analysis of the copy has to be able to
        cope with the added actual.

2016-05-02  Bob Duff  <duff@adacore.com>

        * sem_ch10.adb (Analyze_Compilation_Unit): Preserve
        treeishness. Previous version had Context_Items shared between
        the spec and body.

2016-05-02  Ed Schonberg  <schonberg@adacore.com>

        * sem_aggr.adb (Resolve_Aggr_Expression): For both array and
        record cases, apply predicate check on component for expression
        only if expression has been analyzed already. For expressions
        that need to be duplicated when they cover multiple components,
        resolution and predicate checking take place later.

2016-05-02  Olivier Hainque  <hainque@adacore.com>

        * a-direct.adb (Delete_Tree): Use full names to designate subdirs
        and files therein, instead of local names after a change of
        current directory.

2016-05-02  Thomas Quinot  <quinot@adacore.com>

        * freeze.adb (Check_Component_Storage_Order): Get full view of
        component type.

2016-05-02  Hristian Kirtchev  <kirtchev@adacore.com>

        * checks.adb, freeze.adb, sem_res.adb, s-stposu.adb, repinfo.adb:
        Minor reformatting.

2016-05-02  Hristian Kirtchev  <kirtchev@adacore.com>

        * sem_ch4.adb (Find_Indexing_Operations): Use the underlying type
        of the container base type in case the container is a subtype.
        * sem_ch5.adb (Analyze_Iterator_Specification): Ensure that
        the selector has an entity when checking for a component of a
        mutable object.

2016-05-02  Arnaud Charlet  <charlet@adacore.com>

        Remove dead code.
        * opt.ads (Latest_Ada_Only): New flag.
        * sem_prag.adb, par-prag.adb: Ignore pragma Ada_xx under this flag.
        * usage.adb, switch-c.adb: Disable support for -gnatxx under this flag.
        * einfo.ads (Has_Predicates, Predicate_Function):
        Clarify that Has_Predicates does not imply that Predicate_Function
        will return a non-empty entity.

2016-05-02  Ed Schonberg  <schonberg@adacore.com>

        * sem_res.adb (Resolve_Qualified_Expression): Generate a predicate
        check if type requires it.
        * checks.adb (Apply_Predicate_Check): Disable checks in the
        object declaration created for an expression with side-effects
        that requires a predicate check to prevent infinite recursion
        during expansion.

2016-05-02  Ed Schonberg  <schonberg@adacore.com>

        * sem_ch6.adb (Process_Formals): Check properly the type of a
        formal to determine whether a given convention applies to it.

2016-05-02  Doug Rupp  <rupp@adacore.com>

        * tracebak.c: Add incantations for arm-vxworks[67] traceback.

2016-05-02  Thomas Quinot  <quinot@adacore.com>

        * freeze.adb (Check_Component_Storage_Order): Make it a warning, not an
        error, to have a component with implicit SSO within a composite type
        that has explicit SSO.

2016-05-02  Bob Duff  <duff@adacore.com>

        * s-stposu.adb (Allocate_Any_Controlled): Don't lock/unlock twice.

2016-05-02  Ed Schonberg  <schonberg@adacore.com>

        * repinfo.adb (List_Entities): Make procedure recursive, to
        provide representation information for subprograms declared
        within subprogram bodies.

2016-05-02  Arnaud Charlet  <charlet@adacore.com>

        * exp_ch5.adb, layout.adb, gnatcmd.adb exp_attr.adb, make.adb,
        bindgen.adb, debug.adb, exp_pakd.adb, freeze.adb, sem_util.adb,
        gnatlink.adb, switch-m.adb, exp_ch4.adb, repinfo.adb, adabkend.adb,
        osint.adb: Remove dead code.

2016-05-02  Yannick Moy  <moy@adacore.com>

        * a-tigeli.adb (Get_Line): Fix bound for test to
        decide when to compensate for character 0 added by call to fgets.

2016-05-02  Ed Schonberg  <schonberg@adacore.com>

        * sem_ch4.adb (Analyze_Allocator): If the expression does not
        have a subtype indication and the type is an unconstrained tagged
        type with defaulted discriminants, create an explicit constraint
        for it during analysis to prevent out-of-order freezing actions
        on generated classwide types.

2016-05-02  Javier Miranda  <miranda@adacore.com>

        * exp_ch5.adb (Expand_N_Assignment_Statement):
        In the runtime check that ensures that the tags of source an
        target match, add missing displacement of the pointer to the
        objects if they cover interface types.

2016-05-02  Ed Schonberg  <schonberg@adacore.com>

        * sem_attr.adb (Analyze_Attribute, case 'Old): Do not use
        base type for attribute when type is discrete: transformation
        is not needed for such types, and leads to spurious errors if
        the context is a case construct.

2016-05-02  Eric Botcazou  <ebotcazou@adacore.com>

        * gcc-interface/decl.c (elaborate_reference_1): Do not bother about
        operand #2 for COMPONENT_REF.
        * gcc-interface/utils2.c (gnat_save_expr): Likewise.
        (gnat_protect_expr): Likewise.
        (gnat_stabilize_reference_1): Likewise.
        (gnat_rewrite_reference): Do not bother about operand #3 for ARRAY_REF.
        (get_inner_constant_reference): Likewise.
        (gnat_invariant_expr): Likewise.
        * gcc-interface/trans.c (fold_constant_decl_in_expr): Likewise.

2016-05-02  Eric Botcazou  <ebotcazou@adacore.com>

        * gcc-interface/trans.c (Range_to_gnu): New static function.
        (Raise_Error_to_gnu) <N_In>: Call it to translate the range.
        (gnat_to_gnu) <N_In>: Likewise.

2016-04-30  Eric Botcazou  <ebotcazou@adacore.com>

        * gcc-interface/Make-lang.in (ACATSCMD): New variable.
        (check-acats): Use it.
        (check_acats_targets): Likewise.

2016-04-28  Eric Botcazou  <ebotcazou@adacore.com>

        PR ada/70786
        * a-textio.adb (Get_Immediate): Add missing 'not' in expression.

2016-04-27  Eric Botcazou  <ebotcazou@adacore.com>

        * sem_aux.adb (Is_By_Reference_Type): Also return true for a tagged
        incomplete type without full view.
        * sem_ch6.adb (Exchange_Limited_Views): Change into a function and
        return the list of changes.
        (Restore_Limited_Views): New procedure to undo the transformation made
        by Exchange_Limited_Views.
        (Analyze_Subprogram_Body_Helper): Adjust call to Exchange_Limited_Views
        and call Restore_Limited_Views at the end, if need be.
        (Possible_Freeze): Do not delay freezing because of incomplete types.
        (Process_Formals): Remove kludges for class-wide types.
        * types.h (By_Copy_Return): Delete.
        * gcc-interface/ada-tree.h (TYPE_MAX_ALIGN): Move around.
        (TYPE_DUMMY_IN_PROFILE_P): New macro.
        * gcc-interface/gigi.h (update_profiles_with): Declare.
        (finish_subprog_decl): Likewise.
        (get_minimal_subprog_decl): Delete.
        (create_subprog_type): Likewise.
        (create_param_decl): Adjust prototype.
        (create_subprog_decl): Likewise.
        * gcc-interface/decl.c (defer_limited_with): Rename into...
        (defer_limited_with_list): ...this.
        (gnat_to_gnu_entity): Adjust to above renaming.
        (finalize_from_limited_with): Likewise.
        (tree_entity_vec_map): New structure.
        (gt_pch_nx): New helpers.
        (dummy_to_subprog_map): New hash table.
        (gnat_to_gnu_param): Set the SLOC here.  Remove MECH parameter and
        add FIRST parameter.  Deal with the mechanism here instead of...
        Do not make read-only variant of types.  Simplify expressions.
        In the by-ref case, test the mechanism before must_pass_by_ref
        and also TYPE_IS_BY_REFERENCE_P before building the reference type.
        (gnat_to_gnu_subprog_type): New static function extracted from...
        Do not special-case the type_annotate_only mode.  Call
        gnat_to_gnu_profile_type instead of gnat_to_gnu_type on return type.
        Deal with dummy return types.  Likewise for parameter types.  Deal
        with by-reference types explicitly and add a kludge for null procedures
        with untagged incomplete types.  Remove assertion on the types and be
        prepared for multiple elaboration of the declarations.  Skip the whole
        CICO processing if the profile is incomplete.  Handle the completion of
        a previously incomplete profile.
        (gnat_to_gnu_entity) <E_Variable>: Rename local variable.
        Adjust couple of calls to create_param_decl.
        <E_Access_Subprogram_Type, E_Anonymous_Access_Subprogram_Type>:
        Remove specific deferring code.
        <E_Access_Type>: Also deal with E_Subprogram_Type designated type.
        Simplify handling of dummy types and remove obsolete comment.
        Constify a couple of variables.  Do not set TYPE_UNIVERSAL_ALIASING_P
        on dummy types.
        <E_Access_Subtype>: Tweak comment and simplify condition.
        <E_Subprogram_Type>: ...here.  Call it and clean up handling.  Remove
        obsolete comment and adjust call to gnat_to_gnu_param.  Adjust call to
        create_subprog_decl.
        <E_Incomplete_Type>: Add a couple of 'const' qualifiers and get rid of
        inner break statements.  Tidy up condition guarding direct use of the
        full view.
        (get_minimal_subprog_decl): Delete.
        (finalize_from_limited_with): Call update_profiles_with on dummy types
        with TYPE_DUMMY_IN_PROFILE_P set.
        (is_from_limited_with_of_main): Delete.
        (associate_subprog_with_dummy_type): New function.
        (update_profile): Likewise.
        (update_profiles_with): Likewise.
        (gnat_to_gnu_profile_type): Likewise.
        (init_gnat_decl): Initialize dummy_to_subprog_map.
        (destroy_gnat_decl): Destroy dummy_to_subprog_map.
        * gcc-interface/misc.c (gnat_get_alias_set): Add guard for accessing
        TYPE_UNIVERSAL_ALIASING_P.
        (gnat_get_array_descr_info): Minor tweak.
        * gcc-interface/trans.c (gigi): Adjust calls to create_subprog_decl.
        (build_raise_check): Likewise.
        (Compilation_Unit_to_gnu): Likewise.
        (Identifier_to_gnu): Accept mismatches coming from a limited context.
        (Attribute_to_gnu): Remove kludge for dispatch table entities.
        (process_freeze_entity): Do not retrieve old definition if there is an
        address clause on the entity.  Call update_profiles_with on dummy types
        with TYPE_DUMMY_IN_PROFILE_P set.
        * gcc-interface/utils.c (build_dummy_unc_pointer_types): Also set
        TYPE_REFERENCE_TO to the fat pointer type.
        (create_subprog_type): Delete.
        (create_param_decl): Remove READONLY parameter.
        (finish_subprog_decl): New function extracted from...
        (create_subprog_decl): ...here.  Call it.  Remove CONST_FLAG and
        VOLATILE_FLAG parameters and adjust.
        (update_pointer_to): Also clear TYPE_REFERENCE_TO in the unconstrained
        case.

2016-04-27  Arnaud Charlet  <charlet@adacore.com>

        * aa_util.adb, aa_util.ads: Removed, no longer used.

2016-04-27  Hristian Kirtchev  <kirtchev@adacore.com>

        * sem_prag.adb (Analyze_Pragma): An object
        renaming declaration resulting from the expansion of an object
        declaration is a suitable context for pragma Ghost.

2016-04-27  Doug Rupp  <rupp@adacore.com>

        * init.c: Refine last checkin so the only requirement is the
        signaling compilation unit is compiled with the same mode as
        the compilation unit containing the initial landing pad.

2016-04-27  Ed Schonberg  <schonberg@adacore.com>

        * sem_ch13.adb (Valid_Default_Iterator): Better filter of illegal
        specifications for Default_Iterator, including overloaded cases
        where no interpretations are legal, and return types that are
        not iterator types.

2016-04-27  Hristian Kirtchev  <kirtchev@adacore.com>

        * exp_ch5.adb (Expand_N_Assignment_Statement): Do not install
        an accessibility check when the left hand side of the assignment
        denotes a container cursor.
        * exp_util.ads, exp_util.adb (Find_Primitive_Operations): Removed.
        * sem_ch4.adb (Find_Indexing_Operations): New routine.
        (Try_Container_Indexing): Code cleanup.

2016-04-27  Arnaud Charlet  <charlet@adacore.com>

        * sem_ch10.adb, sem_case.adb: Mark messages udner -gnatwr when needed.

2016-04-27  Hristian Kirtchev  <kirtchev@adacore.com>

        * errout.adb, errutil.adb: Minor reformatting.

2016-04-27  Ed Schonberg  <schonberg@adacore.com>

        * sem_ch13.adb (Analyze_Aspect_Specifications, case Pre/Post):
        Check that the classwide version is illegal when the prefix is
        an operation of an untagged synchronized type.

2016-04-27  Arnaud Charlet  <charleT@adacore.com>

        * sinput-l.ads, sem_ch13.adb: Minor editing.

2016-04-27  Doug Rupp  <rupp@adacore.com>

        * init.c (__gnat_adjust_context_for_raise) [arm-linux thumb]:
        Bump the pc so the lower order bit is set.

2016-04-27  Ed Schonberg  <schonberg@adacore.com>

        * sem_case.adb, sem_case.ads (NO_Op): If appropriate warning is
        enabled, report an empty range in a case construct.

2016-04-27  Arnaud Charlet  <charlet@adacore.com>

        * sinput.ads, a-cfdlli.adb, a-crbtgo.adb, a-chtgop.adb, a-cbhama.adb,
        a-rbtgbo.adb, a-crdlli.adb, a-chtgbo.adb: Minor editing.

2016-04-27  Bob Duff  <duff@adacore.com>

        * a-chtgop.adb (Adjust): Zero the tampering counts on assignment,
        as is done for the other containers.

2016-04-27  Hristian Kirtchev  <kirtchev@adacore.com>

        * ghost.adb (In_Subprogram_Body_Profile): New routine.
        (Is_OK_Declaration): Treat an unanalyzed expression
        function as an OK context.  Treat a reference to a Ghost entity
        as OK when it appears within the profile of a subprogram body.

2016-04-27  Bob Duff  <duff@adacore.com>

        * errout.ads: Document the fact that informational messages
        don't have to be warnings.
        * errout.adb (Error_Msg_Internal): In statistics counts, deal
        correctly with informational messages that are not warnings.
        (Error_Msg_NEL): Remove useless 'if' aroung Set_Posted, because
        Set_Posted already checks for errors and ignores others.
        * erroutc.adb (Prescan_Message): Set Is_Serious_Error to False
        if Is_Info_Msg; the previous code was assuming that Is_Info_Msg
        implies Is_Warning_Msg.
        * errutil.adb (Error_Msg): In statistics counts, deal correctly
        with informational messages that are not warnings.

2016-04-27  Ed Schonberg  <schonberg@adacore.com>

        * sem_util.ads, sem_util.adb (Is_Null_Record_Type): New predicate
        to determine whether a record type is a null record.
        * sem_ch3.adb (Analyze_Object_Declaration): If the type is a
        null record and there is no expression in the declaration,
        no predicate check applies to the object.

2016-04-27  Hristian Kirtchev  <kirtchev@adacore.com>

        * sem_ch7.adb (Analyze_Package_Body_Helper): The body of an
        instantiated package should not cause freezing of previous contracts.

2016-04-27  Ed Schonberg  <schonberg@adacore.com>

        * sem_dim.adb (Analyze_Dimension): Handle subtype declarations
        that do not come from source.
        (Analyze_Dimension_Subtype_Declaration): Allow confirming
        dimensions on subtype entity, either inherited from base type
        or provided by aspect specification.

2016-04-27  Ed Schonberg  <schonberg@adacore.com>

        * s-gearop.ads (Matrix_Vector_Solution, Matrix_Matrix_Solution):
        Add scalar formal object Zero, to allow detection and report
        when the matrix is singular.
        * s-gearop.adb (Matrix_Vector_Solution, Matrix_Matrix_Solution):
        Raise Constraint_Error if the Forward_Eliminate pass has
        determined that determinant is Zero.o
        * s-ngrear.adb (Solve): Add actual for Zero in corresponding
        instantiations.
        * s-ngcoar.adb (Solve): Ditto.

2016-04-27  Hristian Kirtchev  <kirtchev@adacore.com>

        * sem_ch3.adb: Minor reformatting.

2016-04-27  Ed Schonberg  <schonberg@adacore.com>

        * sem_dim.adb (Analyze_Dimension, case N_Identifier): Check
        that identifier has a usable type before analysis, to handle
        properly identifiers introduced after some lexical/syntactic
        recovery that created new identifiers.

2016-04-27  Bob Duff  <duff@adacore.com>

        * a-coinve.adb, a-comutr.adb, a-conhel.adb, a-convec.adb,
        exp_util.adb: Remove assertions that can fail in obscure cases when
        assertions are turned on but tampering checks are turned off.

2016-04-27  Javier Miranda  <miranda@adacore.com>

        * exp_ch6.adb (Add_Call_By_Copy_Code,
        Add_Simple_Call_By_Copy_Code, Expand_Actuals): Handle formals
        whose type comes from the limited view.

2016-04-27  Yannick Moy  <moy@adacore.com>

        * a-textio.adb: Complete previous patch.

2016-04-27  Yannick Moy  <moy@adacore.com>

        * inline.adb (Expand_Inlined_Call): Use Cannot_Inline instead of
        Error_Msg_N to issue message about impossibility to inline call,
        with slight change of message.

2016-04-27  Hristian Kirtchev  <kirtchev@adacore.com>

        * exp_spark.adb (Expand_Potential_Renaming): Removed.
        (Expand_SPARK): Update the call to expand a potential renaming.
        (Expand_SPARK_Potential_Renaming): New routine.
        * exp_spark.ads (Expand_SPARK_Potential_Renaming): New routine.
        * sem.adb Add with and use clauses for Exp_SPARK.
        (Analyze): Expand a non-overloaded potential renaming for SPARK.

2016-04-27  Ed Schonberg  <schonberg@adacore.com>

        * sem_ch3.adb (Constrain_Discriminated_Type): In an instance,
        check full view for the presence of defaulted discriminants,
        even when the partial view of a private type has no visible and
        no unknown discriminants.

2016-04-27  Hristian Kirtchev  <kirtchev@adacore.com>

        * lib-xref.adb, exp_ch3.adb: Minor reformatting.

2016-04-27  Nicolas Roche  <roche@adacore.com>

        * rtinit.c: Add weak symbol __gnat_do_argv_expansion.

2016-04-27  Hristian Kirtchev  <kirtchev@adacore.com>

        * sem_prag.adb (Process_Atomic_Independent_Shared_Volatile): Code
        cleanup. Check the original node when trying to determine the node kind
        of pragma Volatile's argument to account for untagged derivations
        where the type is transformed into a constrained subtype.

2016-04-27  Olivier Hainque  <hainque@adacore.com>

        * mkdir.c (__gnat_mkdir): Rework the vxworks section to use a
        consistent posix interface on the caller side.

2016-04-27  Ed Schonberg  <schonberg@adacore.com>

        * sem_ch10.adb (Build_Limited_View, Decorate_Type): If this
        is a limited view of a type, initialize the Limited_Dependents
        field to catch misuses of the type in a client unit.

2016-04-27  Thomas Quinot  <quinot@adacore.com>

        * a-strunb-shared.adb (Finalize): add missing Reference call.
        * s-strhas.adb: minor grammar fix and extension of comment
        * sem_ch8.adb: minor whitespace fixes

2016-04-27  Ed Schonberg  <schonberg@adacore.com>

        * lib-xref.adb (Get_Type_Reference): Handle properly the case
        of an object declaration whose type definition is a class-wide
        subtype and whose expression is a function call that returns a
        classwide type.

2016-04-27  Hristian Kirtchev  <kirtchev@adacore.com>

        * sem_util.ads, sem_util.adb (Output_Entity): New routine.
        (Output_Name): New routine.

2016-04-27  Bob Duff  <duff@adacore.com>

        * exp_ch3.adb (Rewrite_As_Renaming): Disable previous change for now.

2016-04-27  Vincent Celier  <celier@adacore.com>

        * gnatcmd.adb: For "gnat ls -V -P", recognize switch
        --unchecked-shared-lib-imports and set the flag
        Opt.Unchecked_Shared_Lib_Imports accordingly.

2016-04-27  Ed Schonberg  <schonberg@adacore.com>

        * sem_prag.adb (Analyze_Pre_Post_Condition_In_Decl_Part):
        A generic subprogram is never a primitive operation, and thus
        a classwide condition for it is not legal.

2016-04-27  Hristian Kirtchev  <kirtchev@adacore.com>

        * sem_aggr.adb, sem_dim.adb, sem_dim.ads, einfo.adb: Minor
        reformatting.

2016-04-27  Hristian Kirtchev  <kirtchev@adacore.com>

        * sem_res.adb (Flag_Effectively_Volatile_Objects): New routine.
        (Resolve_Actuals): Flag effectively volatile objects with enabled
        property Async_Writers or Effective_Reads as illegal.
        * sem_util.adb (Is_OK_Volatile_Context): Comment reformatting.

2016-04-27  Javier Miranda  <miranda@adacore.com>

        * exp_ch3.adb (Make_Predefined_Primitive_Specs):
        Do not generate the profile of the equality operator if it has
        been explicitly defined as abstract in the parent type. Required
        to avoid reporting an spurious error.

2016-04-27  Ed Schonberg  <schonberg@adacore.com>

        * sem_dim.ads, sem_dim.adb (Check_Expression_Dimensions): New
        procedure to compute the dimension vector of a scalar expression
        and compare it with the dimensions if its expected subtype. Used
        for the ultimate components of a multidimensional aggregate,
        whose components typically are themselves aggregates that are
        expanded separately. Previous to this patch, dimensionality
        checking on such aggregates generated spurious errors.
        * sem_aggr.adb (Resolve_Array_Aggregate): Use
        Check_Expression_Dimensions when needed.

2016-04-27  Javier Miranda  <miranda@adacore.com>

        * einfo.ads, einfo.adb (Corresponding_Function): New attribute
        (applicable to E_Procedure).
        (Corresponding_Procedure): New attribute (applicable to E_Function).
        * exp_util.adb (Build_Procedure_Form): Link the function with
        its internally built proc and viceversa.
        * sem_ch6.adb (Build_Subprogram_Declaration): Propagate the
        attribute Rewritten_For_C and Corresponding_Procedure to the body.
        * exp_ch6.adb (Rewritten_For_C_Func_Id): Removed.
        (Rewritten_For_C_Proc_Id): Removed.
        * exp_unst.adb (Note_Uplevel_Ref): Use the new attribute to
        locate the corresponding procedure.

2016-04-27  Hristian Kirtchev  <kirtchev@adacore.com>

        * sem_ch13.adb (Analyze_Aspect_Export_Import): Signal that there is no
        corresponding pragma.

2016-04-27  Bob Duff  <duff@adacore.com>

        * exp_ch3.adb: Minor comment improvement.

2016-04-27  Ed Schonberg  <schonberg@adacore.com>

        * exp_ch6.adb (Make_Build_In_Place_Call_In_Object_Declaration): If the
        return type is an untagged limited record with only access
        discriminants and no controlled components, the return value does not
        need to use the secondary stack.

2016-04-27  Javier Miranda  <miranda@adacore.com>

        * exp_util.adb (Remove_Side_Effects): When
        generating C code handle object declarations that have
        discriminants and are initialized by means of a call to a
        function.

2016-04-27  Ed Schonberg  <schonberg@adacore.com>

        * a-textio.adb (Get_Line function): Handle properly the case of
        a line that has the same length as the buffer (or a multiple
        thereof) and there is no line terminator.
        * a-tigeli.adb (Get_Line procedure): Do not store an end_of_file
        in the string when there is no previous line terminator and we
        need at most one additional character.

2016-04-27  Arnaud Charlet  <charlet@adacore.com>

        * s-rident.ads: Make No_Implicit_Loops non partition wide.

2016-04-27  Arnaud Charlet  <charlet@adacore.com>

        * sem_ch11.adb (Analyze_Handled_Statements): check useless
        assignments also in entries and task bodies, not only in
        procedures and declaration blocks.
        * sem_ch5.adb (Analyze_Block_Statement): check useless
        assignements in declaration blocks as part of processing their
        handled statement sequence, just like it was done for procedures
        and now is also done for entries and task bodies.
        * sem_warn.adb (Warn_On_Useless_Assignment): detect boundries
        of entries and task bodies just like of procedures.

2016-04-27  Hristian Kirtchev  <kirtchev@adacore.com>

        * sem_util.adb (Is_Volatile_Function): Recognize
        a function declared within a protected type as well as the
        protected/unprotected version of a function.

2016-04-27  Bob Duff  <duff@adacore.com>

        * exp_ch3.adb (Expand_N_Object_Declaration): Rewrite an object
        declaration of the form "X : T := Func (...);", where T is
        controlled, as a renaming.
        * a-strunb-shared.adb (Finalize): Set the Unbounded_String Object
        to be an empty string, instead of null-ing out the Reference.
        * exp_util.adb (Needs_Finalization): Remove redundant code.

2016-04-27  Hristian Kirtchev  <kirtchev@adacore.com>

        * aspects.ads Aspects Export and Import do not require delay. They
        were classified as delayed aspects, but treated as non-delayed
        by the analysis of aspects.
        * freeze.adb (Copy_Import_Pragma): New routine.
        (Wrap_Imported_Subprogram): Copy the import pragma by first
        resetting all semantic fields to avoid an infinite loop when
        performing the copy.
        * sem_ch13.adb (Analyze_Aspects_At_Freeze_Point): Add
        comment on the processing of aspects Export and Import
        at the freeze point.
        (Analyze_Aspect_Convention: New routine.
        (Analyze_Aspect_Export_Import): New routine.
        (Analyze_Aspect_External_Link_Name): New routine.
        (Analyze_Aspect_External_Or_Link_Name): Removed.
        (Analyze_Aspect_Specifications): Factor out the analysis of
        aspects Convention, Export, External_Name, Import, and Link_Name
        in their respective routines.  Aspects Export and Import should
        not generate a Boolean pragma because their corresponding pragmas
        have a very different syntax.
        (Build_Export_Import_Pragma): New routine.
        (Get_Interfacing_Aspects): New routine.

2016-04-27  Eric Botcazou  <ebotcazou@adacore.com>

        * inline.adb (Add_Inlined_Body): Overhaul implementation,
        robustify handling of -gnatn1, add special treatment for
        expression functions.

2016-04-27  Doug Rupp  <rupp@adacore.com>

        * g-traceb.ads: Update comment.
        * exp_ch2.adb: minor style fix in object declaration

2016-04-27  Hristian Kirtchev  <kirtchev@adacore.com>

        * sem_elab.adb (Check_Internal_Call): Do not
        consider a call when it appears within pragma Initial_Condition
        since the pragma is part of the elaboration statements of a
        package body and may only call external subprograms or subprograms
        whose body is already available.
        (Within_Initial_Condition): New routine.

2016-04-27  Ed Schonberg  <schonberg@adacore.com>

        * exp_util.adb (Build_Procedure_Form): Prevent double generation
        of the procedure form when dealing with an expression function
        whose return type is an array.
        * sem_ch3.adb: Fix out-of order Has_Predicates setting.
        * exp_ch6.adb: Proper conversion for inherited operation in C.
        * sem_ch6.adb: Code cleanup.

2016-04-27  Hristian Kirtchev  <kirtchev@adacore.com>

        * lib-xref.ads, sem_ch10.adb: minor style fix in comment
        * g-socket.adb: Minor reformatting.
        * sinfo.ads: Minor comment correction.
        * sem_warn.ads: minor grammar fix in comment

2016-04-27  Eric Botcazou  <ebotcazou@adacore.com>

        * gcc-interface/gigi.h (gnat_to_gnu_entity): Adjust prototype.
        (maybe_pad_type): Adjust comment.
        (finish_record_type): Likewise.
        (rest_of_record_type_compilation): Likewise.
        * gcc-interface/decl.c (gnat_to_gnu_entity): Change DEFINITION type
        parameter from integer to boolean.  Adjust recursive calls.
        <E_Subprogram_Type>: Use copy_type and remove redundant assignments.
        <E_Signed_Integer_Subtype>:  Adjust comment.  Remove call to
        rest_of_record_type_compilation.  Set TYPE_PADDING_P flag earlier.
        Pass false to finish_record_type.  Set the debug type later.
        <E_Record_Subtype>: Remove call to rest_of_record_type_compilation.
        (gnat_to_gnu_component_type): Fix formatting.
        (gnat_to_gnu_field_decl): Adjust call to gnat_to_gnu_entity.
        (gnat_to_gnu_type): Likewise.
        * gcc-interface/trans.c (Identifier_to_gnu): Likewise.
        (Loop_Statement_to_gnu): Likewise.
        (Subprogram_Body_to_gnu): Likewise.
        (Exception_Handler_to_gnu_fe_sjlj): Likewise.
        (Exception_Handler_to_gnu_gcc): Likewise.
        (Compilation_Unit_to_gnu): Likewise.
        (gnat_to_gnu): Likewise.
        (push_exception_label_stack): Likewise.
        (elaborate_all_entities_for_package): Likewise.
        (process_freeze_entity): Likewise.
        (process_decls): Likewise.
        (process_type): Likewise.
        * gcc-interface/utils.c (struct deferred_decl_context_node): Tweak.
        (maybe_pad_type): Adjust comments.  Set the debug type later.  Remove
        call to rest_of_record_type_compilation.
        (rest_of_record_type_compilation): Use copy_type.
        (copy_type): Use correctly typed constants.
        (gnat_signed_or_unsigned_type_for): Use copy_type.
        * gcc-interface/utils2.c (nonbinary_modular_operation): Likewise.
        (build_goto_raise): Adjust call tognat_to_gnu_entity.

2016-04-27  Eric Botcazou  <ebotcazou@adacore.com>

        * gcc-interface/misc.c (gnat_init): Do not call
        internal_reference_types.

2016-04-27  Svante Signell  <svante.signell@gmail.com>

        * gcc-interface/Makefile.in (x86 GNU/Hurd): Use s-osinte-gnu.adb.
        * s-osinte-gnu.ads: Small tweaks.
        * s-osinte-gnu.adb: New file.

2016-04-21  Hristian Kirtchev  <kirtchev@adacore.com>

        * sem_prag.adb (Match_Constituent): Treat a constant as a legal
        constituent even if it is not to prevent spurious errors.

2016-04-21  Gary Dismukes  <dismukes@adacore.com>

        * sem_ch4.adb: Minor typo fixes and reformatting.

2016-04-21  Dmitriy Anisimkov  <anisimko@adacore.com>

        * g-calend.ads (No_Time): The same value in any timezone.
        * g-socket.adb (Raise_Host_Error): Remove ending
        dot from original error message before append colon delimited
        host name.

2016-04-21  Hristian Kirtchev  <kirtchev@adacore.com>

        * sem_ch3.adb: Code cleanup.
        * sem_ch6.adb: Code cleanup.
        (Is_Matching_Limited_View): New routine.
        (Matches_Limited_With_View): Reimplemented.
        * sem_ch10.adb (Decorate_Type): Code cleanup.

2016-04-21  Doug Rupp  <rupp@adacore.com>

        * tracebak.c (PPC ELF): Add macro defs for lynxos178e.

2016-04-21  Ed Schonberg  <schonberg@adacore.com>

        * sem_ch4.adb (Try_Container_Indexing): If there are overloaded
        indexing functions, collect all overloadings of the call firts,
        and then transfer them to indexing node, to prevent interleaving
        of the set of interpretations of the nodes involved.
        * sem_res.adb (Resolve): Suppress cascaded errors that report
        ambiguities when one of the actuals in an overloaded generatlized
        indexing operation is illegal and has type Any_Type, as is done
        for similar cascaded errors in subprogram calls.
        (Valid_Tagged_Conversion): Cleanup conversion checks when one
        of the types involved is a class-wide subtype.

2016-04-21  Ed Schonberg  <schonberg@adacore.com>

        * sem_ch12.adb (Load_Parent_Of_Generic): When looking for the
        subprogram declaration within a wrapper package, skip pragmas
        that may have been generated by aspect specifications on the
        generic instance.

2016-04-21  Javier Miranda  <miranda@adacore.com>

        * exp_aggr.adb (Component_Not_OK_For_Backend): Generating C
        code return True for array identifiers since the backend needs
        to initialize such component by means of memcpy().

2016-04-21  Arnaud Charlet  <charlet@adacore.com>

        * a-tasatt.adb, a-tasatt.ads (Fast_Path): Rewritten to avoid reading
        potentially uninitialized memory.
        * sem_ch3.adb: Minor style fix in comment.

2016-04-21  Arnaud Charlet  <charlet@adacore.com>

        * gnat_rm.texi, gnat_ugn.texi,
        doc/gnat_ugn/gnat_project_manager.rst,
        doc/gnat_ugn/building_executable_programs_with_gnat.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/standard_and_implementation_defined_restrictions.rst,
        doc/gnat_rm/implementation_defined_pragmas.rst,
        doc/gnat_rm/the_gnat_library.rst,
        doc/gnat_rm/implementation_defined_aspects.rst: Update doc.
        * doc/Makefile: Cleanups.

2016-04-21  Hristian Kirtchev  <kirtchev@adacore.com>

        * exp_pakd.adb, sem_ch13.adb: Minor reformatting.

2016-04-21  Ed Schonberg  <schonberg@adacore.com>

        * exp_dbug.adb, exp_dbug.ads (Qualify_Entity_Name): Add suffixes to
        disambiguate local variables that may be hidden from inner visibility
        by nested block declarations or loop variables.

2016-04-21  Jerome Lambourg  <lambourg@adacore.com>

        * s-soflin.adb: Initialize the Stack_Limit global variable.

2016-04-21  Hristian Kirtchev  <kirtchev@adacore.com>

        * lib-writ.adb: Minor reformatting.

2016-04-21  Ed Schonberg  <schonberg@adacore.com>

        * exp_pakd.adb (Compute_Number_Components): New function to
        build an expression that computes the number of a components of
        an array that may be multidimensional.
        (Expan_Packed_Eq): Use it.

2016-04-21  Arnaud Charlet  <charlet@adacore.com>

        * g-traceb.ads: Update list of supported platforms.

2016-04-21  Ed Schonberg  <schonberg@adacore.com>

        * sem_ch13.adb (Add_Predicates): if the type is declared in
        an inner package it may be frozen outside of the package, and
        the generated pragma has not been analyzed yet, the expression
        for the predicate must be captured and added to the predicate
        function at this point.

2016-04-21  Hristian Kirtchev  <kirtchev@adacore.com>

        * contracts.adb (Analyze_Package_Body_Contract): Do not check
        for a missing package refinement because 1) packages do not have
        "refinement" and 2) the check for proper state refinement is
        performed in a different place.
        * einfo.adb (Has_Non_Null_Visible_Refinement): Reimplemented.
        (Has_Null_Visible_Refinement): Reimplemented.
        * sem_ch3.adb (Analyze_Declarations): Determine whether all
        abstract states have received a refinement and if not, emit
        errors.
        * sem_ch7.adb (Analyze_Package_Declaration): Code
        cleanup. Determine whether all abstract states of the
        package and any nested packages have received a refinement
        and if not, emit errors.
        (Requires_Completion_In_Body): Add new formal parameter
        Do_Abstract_States. Update the comment on usage. Propagate the
        Do_Abstract_States flag to all Unit_Requires_Body calls.
        (Unit_Requires_Body): Remove formal
        parameter Ignore_Abstract_States. Add new formal paramter
        Do_Abstract_States. Propagate the Do_Abstract_States flag to
        all Requires_Completion_In calls.
        * sem_ch7.ads (Unit_Requires_Body): Remove formal
        parameter Ignore_Abstract_States. Add new formal paramter
        Do_Abstract_States. Update the comment on usage.
        * sem_ch9.adb (Analyze_Single_Protected_Declaration): Do
        not initialize the constituent list as this is now done on a
        need-to-add-element basis.
        (Analyze_Single_Task_Declaration):
        Do not initialize the constituent list as this is now done on
        a need-to-add-element basis.
        * sem_ch10.adb (Decorate_State): Do not initialize the constituent
        lists as this is now done on a need-to-add-element basis.
        * sem_prag.adb (Analyze_Constituent): Set the
        refinement constituents when adding a new element.
        (Analyze_Part_Of_In_Decl_Part): Set the Part_Of constituents when
        adding a new element.
        (Analyze_Part_Of_Option): Set the Part_Of
        constituents when adding a new element.
        (Analyze_Pragma): Set the Part_Of constituents when adding a new
        element.
        (Check_Constituent_Usage (all versions)): Reimplemented.
        (Collect_Constituent): Set the refinement constituents when adding
        a new element.
        (Create_Abstract_State): Do not initialize the
        constituent lists as this is now done on a need-to-add-element basis.
        (Propagate_Part_Of): Set the Part_Of constituents when
        adding a new element.
        * sem_util.adb (Check_State_Refinements): New routine.
        (Has_Non_Null_Refinement): Reimplemented.
        (Has_Null_Refinement): Reimplemented.
        (Requires_State_Refinement): Removed.
        * sem_util.ads (Check_State_Refinements): New routine.
        (Requires_State_Refinement): Removed.

2016-04-21  Hristian Kirtchev  <kirtchev@adacore.com>

        * lib-writ.adb, sem_ch6.adb: Minor reformatting and code cleanup.
        * sem.adb: Fix comment.

2016-04-21  Ed Schonberg  <schonberg@adacore.com>

        * sem_ch3.adb (Analyze_Subtype_Declaration): A subtype
        declaration with no aspects, whose subtype_mark is a subtype
        with predicates, inherits the list of subprograms for the type.

2016-04-21  Arnaud Charlet  <charlet@adacore.com>

        * exp_aggr.adb (Has_Per_Object_Constraint): Refine previous
        change.

2016-04-21  Thomas Quinot  <quinot@adacore.com>

        * g-socket.adb (Raise_Host_Error): Include additional Name parameter.

2016-04-21  Ed Schonberg  <schonberg@adacore.com>

        * lib-writ.adb (Write_ALI): Do not record in ali file units
        that are present in the files table but not analyzed. These
        units are present because they appear in the context of units
        named in limited_with clauses, and the unit being compiled does
        not depend semantically on them.

2016-04-21  Ed Schonberg  <schonberg@adacore.com>

        * sem_ch6.adb (Analyze_Subprogram_Body_Helper): Simplify code to
        create the procedure body for an function returning an array type,
        when generating C code. Reuse the subprogram body rather than
        creating a new one, both as an efficiency measure and because
        in an instance the body may contain global references that must
        be preserved.

2016-04-21  Hristian Kirtchev  <kirtchev@adacore.com>

        * sem_ch3.adb, exp_attr.adb, exp_ch6.adb, exp_aggr.adb: Minor
        reformatting.

2016-04-21  Javier Miranda  <miranda@adacore.com>

        * exp_aggr.adb (Component_Check): Extend
        the check that verifies that the aggregate has no function
        calls to handle transformations performed by the frontend.
        (Ultimate_Original_Expression): New subprogram.

2016-04-21  Philippe Gil  <gil@adacore.com>

        * krunch.adb (Krunch): Fix krunching of i-java.

2016-04-21  Arnaud Charlet  <charlet@adacore.com>

        * exp_ch8.adb (Evaluation_Required): Always return
        True when Modify_Tree_For_C.

2016-04-21  Eric Botcazou  <ebotcazou@adacore.com>

        * gnatlink.adb (Gnatlink): Robustify detection of Windows target.
        * alloc.ads: Minor comment fixes.
        * einfo.ads: Fix typo.

2016-04-21  Arnaud Charlet  <charlet@adacore.com>

        * exp_aggr.adb (Component_Not_OK_For_Backend): Redo previous
        changes to handle all cases of components depending on the
        discriminant, not just string literals.

2016-04-21  Ed Schonberg  <schonberg@adacore.com>

        * sem_ch3.adb (Analyze_Subtype_Declaration): If the subtype
        declaration is the generated declaration for a generic actual,
        inherit predicates from the actual if it is a predicated subtype.

2016-04-21  Ed Schonberg  <schonberg@adacore.com>

        * exp_ch6.adb (Rewrite_Function_Call_For_C): If the function is
        inherited and its result is controlling,  introduce a conversion
        on the actual for the corresponding procedure call, to avoid
        spurious type errors.

2016-04-21  Jerome Lambourg  <lambourg@adacore.com>

        * krunch.adb (Krunch): Fix krunching of i-vxworks.

2016-04-21  Gary Dismukes  <dismukes@adacore.com>

        * exp_aggr.adb: Minor reformatting and code cleanup.

2016-04-21  Ed Schonberg  <schonberg@adacore.com>

        * sem_ch13.adb (Resolve_Name): Omit quantified expressions from
        resolution, because they introduce local names. Full resolution
        will take place when predicate function is constructed.

2016-04-21  Arnaud Charlet  <charlet@adacore.com>

        * exp_aggr.adb (Component_Not_OK_For_Backend): Refine previous
        change to take into account Per_Object_Constraint field rather
        than special casing strings.
        * exp_ch6.adb: Fix typo in Replace_Returns.

2016-04-21  Hristian Kirtchev  <kirtchev@adacore.com>

        * sem_ch5.adb: Minor reformatting.

2016-04-21  Arnaud Charlet  <charlet@adacore.com>

        * exp_aggr.adb (Backend_Processing_Possible): Return False
        when generating C and aggregate contains function calls.

2016-04-21  Tristan Gingold  <gingold@adacore.com>

        * krunch.adb (Krunch): Only partially krunch children of
        Interfaces that aren't known.

2016-04-21  Ed Schonberg  <schonberg@adacore.com>

        * sem_prag.adb (Make_Inline): Handle properly the instantiation
        of a generic subpprogram that carries an Inline aspect. Place
        inline info on the anonymous subprogram that is constructed in
        the wrapper package.
        (Analyze_Pragma, case Pure): Do not check placement if pragma
        appears within an instantiation, which can be nested at any level.
        * sem_ch12.adb (Analyze_Instance_And_Renamings): Do not copy Freeze
        node from anonymous subprogram to its visible renaming. The
        freeze node will be constructed if the subprogram carries
        delayed aspects.
        (Set_Global): Preserve dimension information if present (from
        code reading).

2016-04-21  Vasiliy Fofanov  <fofanov@adacore.com>

        * gnatlink.adb: Change wording of the warning message on
        problematic filenames to be more neutral. Add a new substring
        "patch" introduced on Windows 10.

2016-04-21  Philippe Gil  <gil@adacore.com>

        * tracebak.c (__gnat_backtrace): handle bad RIP values (win64 only)

2016-04-21  Javier Miranda  <miranda@adacore.com>

        * exp_aggr.adb (Component_Not_OK_For_Backend): Return true for string
        literals.

2016-04-21  Hristian Kirtchev  <kirtchev@adacore.com>

        * einfo.adb (Has_Non_Null_Abstract_State): New routine.
        * einfo.ads New synthesized attribute
        Has_Non_Null_Abstract_State along with occurrences in entities.
        (Has_Non_Null_Abstract_State): New routine.
        * sem_ch7.adb (Unit_Requires_Body): Add local variable
        Requires_Body. A package declaring an abstract state requires
        a body only when the state is non-null and the package contains
        at least one other construct that requires completion in a body.
        * sem_util.adb (Mode_Is_Off): Removed.
        (Requires_State_Refinement): Remove an obsolete check. Code
        cleanup.

2016-04-21  Bob Duff  <duff@adacore.com>

        * sem_attr.adb (Analyze_Attribute): In processing
        the 'Old attribute, a warning is given for infinite recursion. Fix
        the code to not crash when the prefix of 'Old denotes a protected
        function.
        * sem_ch5.adb (Analyze_Iterator_Specification):
        Avoid calling Is_Dependent_Component_Of_Mutable_Object in cases
        where the parameter would not be an object.

2016-04-21  Eric Botcazou  <ebotcazou@adacore.com>

        * sem_eval.adb (Compile_Time_Compare): Be prepared for an empty
        Etype or Underlying_Type of the operands.

2016-04-21  Eric Botcazou  <ebotcazou@adacore.com>

        * atree.adb (Print_Statistics): Protect against overflows and
        print the memory consumption in bytes.
        * table.adb (Reallocate): Do the intermediate calculation of the new
        size using the Memory.size_t type.

2016-04-21  Gary Dismukes  <dismukes@adacore.com>

        * exp_attr.adb (Is_Inline_Floating_Point_Attribute): Suppress
        expansion of Attribute_Machine and Attribute_Model for AAMP.

2016-04-21  Ed Schonberg  <schonberg@adacore.com>

        * freeze.adb: Disable previous change for now.

2016-04-21  Ed Schonberg  <schonberg@adacore.com>

        * sem_ch8.adb (Find_Selected_Component): If prefix has an
        access type and designated type is a limited view, introduce
        an explicit dereference before continuing the analysis, and
        set its type to the non-limited view of the designated type,
        if we are in context where it is available.

2016-04-21  Ed Schonberg  <schonberg@adacore.com>

        * freeze.adb: Freeze profile in ASIS mode.

2016-04-21  Hristian Kirtchev  <kirtchev@adacore.com>

        * sem_aux.ads, sem_aux.adb (Has_Rep_Item): New variant.
        * sem_util.adb (Inherit_Rep_Item_Chain): Reimplemented.

2016-04-21  Hristian Kirtchev  <kirtchev@adacore.com>

        * exp_ch6.adb: Minor reformatting.

2016-04-21  Ed Schonberg  <schonberg@adacore.com>

        * sem_ch13.adb: Minor comment update.

2016-04-21  Ed Schonberg  <schonberg@adacore.com>

        * freeze.ads, freeze.adb (Freeze_Entity, Freeze_Before): Add
        boolean parameter to determine whether freezing an overloadable
        entity freezes its profile as well. This is required by
        AI05-019. The call to Freeze_Profile within Freeze_Entity is
        conditioned by the value of this flag, whose default is True.
        * sem_attr.adb (Resolve_Attribute, case 'Access): The attribute
        reference freezes the prefix, but it the prefix is a subprogram
        it does not freeze its profile.

2016-04-21  Javier Miranda  <miranda@adacore.com>

        * exp_util.adb (Build_Procedure_Form): No action needed for
        subprogram renamings since the backend can generate the call
        using the renamed subprogram. This leaves the tree more clean
        to the backend.
        * exp_ch6.adb (Expand_Call): Extend previous patch for
        rewritten-for-c entities to handle subprogram renamings.
        (Rewrite_Function_Call_For_C): Handle subprogram renamings.

2016-04-21  Ed Schonberg  <schonberg@adacore.com>

        * sem_ch13.adb: Code cleanup.

2016-04-21  Ed Schonberg  <schonberg@adacore.com>

        * sem_ch6.adb (Analyze_Subprogram_Body_Helper): If the body is
        created for SPARK_To_C, the entity must remain invisible so it
        does not overload subsequent references to the original function.
        * exp_ch6.adb (Build_Procedure_Body_Form, Replace_Returns):
        Handle Extended_Return_Statements by replacing it with a block
        with assignments and a simple return statement.
        * exp_util.adb (Build_Procedure_Form): Make procedure entity
        invisible after analyzing declaration, to prevent improper
        overloading.

2016-04-21  Javier Miranda  <miranda@adacore.com>

        * sem_ch6.adb (Build_Subprogram_Declaration): Propagate the
        attribute Rewritten_For_C to the body since since the expander
        may generate calls using that entity.
        * exp_ch6.adb (Expand_Call): For internally generated
        calls ensure that they reference the entity of the spec
        of the called function.
        (Rewritten_For_C_Func_Id): New subprogram.
        (Rewritten_For_C_Proc_Id): New subprogram.
        (Rewrite_Function_Call_For_C): Invoke the new subprogram to
        ensure that we skip freezing entities.
        * exp_util.adb (Build_Procedure_Form): No action needed if the
        procedure was already built.

2016-04-21  Hristian Kirtchev  <kirtchev@adacore.com>

        * sem_ch3.adb, exp_util.adb, sem_ch13.adb, exp_unst.adb: Minor
        reformatting.

2016-04-21  Ed Schonberg  <schonberg@adacore.com>

        * sem_util.adb (Denotes_Iterator): Use root type to determine
        whether the ultimate ancestor is the predefined iterator
        interface pakage.
        * exp_ch5.adb (Expand_Iterator_Over_Container): simplify code
        and avoid reuse of Pack local variable.

2016-04-21  Olivier Hainque  <hainque@adacore.com>

        * system-vxworks-arm.ads, system-vxworks-sparcv9.ads,
        system-vxworks-ppc.ads, system-vxworks-m68k.ads,
        system-vxworks-mips.ads, system-vxworks-x86.ads: Define
        Executable_Extension to ".out".

2016-04-21  Javier Miranda  <miranda@adacore.com>

        * frontend.adb: Update call to Unnest_Subprograms.
        * exp_ch6.ads, exp_ch6.adb, exp_unst.ads, exp_unst.adb
        (Unnest_Subprograms): Moved to package exp_unst.
        * exp_unst.ads (Unnest_Subprogram): Moved to the body of the
        package.
        * exp_dbug.adb (Qualify_Entity_Name): Enable qualification of
        enumeration literals when generating C code.

2016-04-21  Javier Miranda  <miranda@adacore.com>

        * frontend.adb: Remove call to initialize Exp_Ch6.
        * exp_ch6.ads, exp_ch6.adb (Initialize): removed.
        (Unest_Entry/Unest_Bodies): Removed.
        (Unnest_Subprograms): Code cleanup.

2016-04-21  Arnaud Charlet  <charlet@adacore.com>

        * set_targ.adb (Read_Target_Dependent_Values):
        close target description file once its contents is read.
        * s-os_lib.adb (Non_Blocking_Spawn, version with Stdout_File
        and Stderr_File): Close local file descriptors before spawning
        child process.
        * exp_util.adb (Containing_Package_With_Ext_Axioms): Limit scope of
        local variables to make the code easier to understand and avoid
        duplicated calls to Parent and Generic_Parent.

2016-04-20  Bob Duff  <duff@adacore.com>

        * s-os_lib.ads: Minor comment fix.

2016-04-20  Ed Schonberg  <schonberg@adacore.com>

        * exp_ch5.adb (Expand_N_Assignment_Statement): Do no generate
        a discriminant check for a type whose partial view has unknown
        discriminants when the full view has discriminants with defaults.

2016-04-20  Javier Miranda  <miranda@adacore.com>

        * exp_util.adb (Remove_Side_Effects): When generating C code
        remove side effect of type conversion of access to unconstrained
        array type.
        (Side_Effect_Free): Return false for the type
        conversion of access to unconstrained array type when generating
        C code.
        * sem_res.adb (Resolved_Type_Conversion): Remove side effects
        of access to unconstrained array type conversion when generating
        C code.

2016-04-20  Ed Schonberg  <schonberg@adacore.com>

        * sem_ch13.adb (Build_Predicate_Function_Declaration): New
        function, to construct the declaration of a predicate function
        at the end of the current declarative part rather than at the
        (possibly later) freeze point of the type. This also allows uses
        of a type with predicates in instantiations elsewhere.
        (Resolve_Aspect_Expression): New procedure to detect visiblity
        errors in aspect expressions, at the end of the declarative part
        that includes the type declaration.
        * sem_ch3.adb (Complete_Private_Subtype): Propagate properly the
        predicate function from private to full view.
        * einfo.adb (Predicate_Function): Refine search for predicate
        function when type has a full view and predicate function may
        be defined on either view.

2016-04-20  Javier Miranda  <miranda@adacore.com>

        * frontend.adb: Passing the root of the tree to
        Unnest_Subprograms().
        * exp_ch6.adb (Expand_N_Subprogram_Body): Remove code that
        took care of adding subprograms to the Unest_Bodies table since
        performing such action too early disables the ability to process
        generic instantiations.
        (Unnest_Subprograms): Adding parameter.
        (Search_Unnesting_Subprograms): New subprogram.
        * exp_ch6.ads (Unnest_Subrograms): Update documentation.

2016-04-20  Hristian Kirtchev  <kirtchev@adacore.com>

        * exp_util.adb, freeze.adb, sem_util.adb: Minor reformatting.

2016-04-20  Ed Schonberg  <schonberg@adacore.com>

        * exp_unst.adb (Check_Static_Type): For a private type, check
        full view.

2016-04-20  Ed Schonberg  <schonberg@adacore.com>

        * sem_attr.adb (Check_Type): Reject an attribute reference in
        an aspect expression, when the prefix of the reference is the
        current instance of the type to which the aspect applies.

2016-04-20  Bob Duff  <duff@adacore.com>

        * sem_ch6.adb (Enter_Overloaded_Entity): Do not warn about
        hiding unless we're actually hiding something. The previous
        code would (for example) warn about a "<" on a record type
        because it incorrectly thought it was hiding the "<" on Boolean
        in Standard. We need to check that the homonym S is in fact a
        homograph of a predefined operator.

2016-04-20  Ed Schonberg  <schonberg@adacore.com>

        * exp_util.ads, exp_util.adb (Build_Procedure_Form): Moved here
        from exp_ch6.adb, for use in SPARK_To_C mode when creating the
        procedure equivalent to a function returning an array, when this
        construction is deferred to the freeze point of the function.
        * sem_util.adb (Is_Unchecked_Conversion_Instance): Include a
        function that renames an instance of Unchecked_Conversion.
        * freeze.adb (Freeze_Subprogram): Generate the proper procedure
        declaration for a function returning an array.
        * exp_ch6.adb (Build_Procedure_Form): Moved to exp_util.

2016-04-20  Ed Schonberg  <schonberg@adacore.com>

        * sem_util.ads, sem_util.adb (Is_Expanded_Priority_Attribute):
        New predicate to determine that in a context with full run-time,
        a function call is an expansion of a reference to attribute
        Priority.
        * sem_ch5.adb (Analyze_Function_Call): use it.
        * exp_ch5.adb (Expand_N_Subprogram_Call): use it.

2016-04-20  Hristian Kirtchev  <kirtchev@adacore.com>

        * einfo.adb Flag286 is now used as Is_Exception_Handler.
        (Is_Exception_Handler): New routine.
        (Set_Is_Exception_Handler): New routine.
        (Write_Entity_Flags): Output the status of Is_Exception_Handler.
        * einfo.ads New attribute Is_Exception_Handler along with
        occurrences in entities.
        (Is_Exception_Handler): New routine along with pragma Inline.
        (Set_Is_Exception_Handler): New routine along with pragma Inline.
        * exp_ch7.adb (Make_Transient_Block): Ignore blocks generated
        for exception handlers with a choice parameter.
        * sem_ch11.adb (Analyze_Exception_Handlers): Mark the scope
        generated for a choice parameter as an exception handler.

2016-04-20  Ed Schonberg  <schonberg@adacore.com>

        * sem_ch3.adb (Build_Derived_Access_Type): Remove dead code.
        (Constrain_Discriminated_Type): In an instance, if the type has
        unknown discriminants, use its full view.
        (Process_Subtype): Check that the base type is private before
        adding subtype to Private_Dependents list.

2016-04-20  Bob Duff  <duff@adacore.com>

        * sem_ch13.adb: Minor comment fix.

2016-04-20  Yannick Moy  <moy@adacore.com>

        * sem_ch4.adb: Fix typos in comments.
        * sem_res.adb (Resolve_Case_Expression): Fix type of case alternatives.

2016-04-20  Ed Schonberg  <schonberg@adacore.com>

        * sem_ch4.adb (Analyze_Selected_Component): A reference to the
        current instance of a task type is legal if the prefix is an
        expression of that task type and the selector is an entry or
        entry family.

2016-04-20  Arnaud Charlet  <charlet@adacore.com>

        * a-cfdlli.ads (List): Type is no longer tagged, not needed. Move
        varsize field at the end for efficiency.

2016-04-20  Vincent Celier  <celier@adacore.com>

        * gnatcmd.adb: Do not invoke gprls when the invocation of "gnat
        ls" includes the switch -V.
        * clean.adb: "<target>-gnatclean -P" now calls "gprclean
        --target=<target>"
        * make.adb: "<target>-gnatmake -P" now calls "gprbuild
        --target=<target>"

2016-04-20  Hristian Kirtchev  <kirtchev@adacore.com>

        * sem_ch12.adb (Qualify_Type): Do not perform
        partial qualification when the immediate scope is a generic unit.

2016-04-20  Hristian Kirtchev  <kirtchev@adacore.com>

        * exp_unst.adb: Minor reformatting.

2016-04-20  Hristian Kirtchev  <kirtchev@adacore.com>

        * exp_ch4.adb (Expand_Allocator_Expression): Ensure that the
        tag assignment and adjustment preceed the accessibility check.
        * exp_ch7.adb (Is_Subprogram_Call): Reimplemented.

2016-04-20  Hristian Kirtchev  <kirtchev@adacore.com>

        * exp_prag.adb (Expand_Attributes): Ensure that
        the temporary used to capture the value of attribute 'Old's
        prefix is properly initialized.

2016-04-20  Javier Miranda  <miranda@adacore.com>

        * exp_unst.ads, exp_unst.adb (Get_Level, Subp_Index): Moved to library
        level.

2016-04-20  Arnaud Charlet  <charlet@adacore.com>

        * sem_ch9.adb (Analyze_Task_Type_Declaration): Shut down warning
        in codepeer mode.

2016-04-20  Vincent Celier  <celier@adacore.com>

        * make.adb: Code cleanup.

2016-04-20  Arnaud Charlet  <charlet@adacore.com>

        * exp_ch4.adb (Expand_Allocator_Expression): Help C code
        generation.

2016-04-20  Hristian Kirtchev  <kirtchev@adacore.com>

        * sem_ch12.adb (Copy_Generic_Node): Handle the special
        qualification installed for universal literals that act as
        operands in binary or unary operators.  (Qualify_Operand): Mark
        the qualification to signal the instantiation mechanism how to
        handle global reference propagation.
        * sinfo.adb (Is_Qualified_Universal_Literal): New routine.
        (Set_Is_Qualified_Universal_Literal): New routine.
        * sinfo.ads New attribute Is_Qualified_Universal_Literal along
        with occurrences in nodes.
        (Is_Qualified_Universal_Literal):
        New routine along with pragma Inline.
        (Set_Is_Qualified_Universal_Literal): New routine along with
        pragma Inline.

2016-04-20  Ed Schonberg  <schonberg@adacore.com>

        * sem.adb (Do_Analyze): Save and restore Style_Max_Line_Length
        so that the corresponding checks are preserved across compilations
        that include System.Constants in their context.

2016-04-20  Gary Dismukes  <dismukes@adacore.com>

        * sem_type.adb: Minor typo fix and reformatting.
        * a-conhel.ads: Update comment.

2016-04-20  Bob Duff  <duff@adacore.com>

        * a-cihama.adb, a-cihase.adb, a-coinve.adb (Copy): Rewrite the
        code so it doesn't trigger an "uninit var" warning.

2016-04-20  Hristian Kirtchev  <kirtchev@adacore.com>

        * sem_attr.ads Add new table Universal_Type_Attribute.
        * sem_util.adb (Yields_Universal_Type): Use a table lookup when
        checking attributes.

2016-04-20  Ed Schonberg  <schonberg@adacore.com>

        * exp_aggr.adb (Init_Stored_Discriminants,
        Init_Visible_Discriminants): New procedures, subsidiary of
        Build_Record_Aggr_Code, to handle properly the construction
        of aggregates for a derived type that constrains some parent
        discriminants and renames others.

2016-04-20  Hristian Kirtchev  <kirtchev@adacore.com>

        * sem_ch12.adb (Qualify_Universal_Operands): New routine.
        (Save_References_In_Operator): Add explicit qualifications in
        the generic template for all operands of universal type.
        * sem_type.adb (Disambiguate): Update the call to Matches.
        (Matches): Reimplemented.
        * sem_util.ads, sem_util.adb (Yields_Universal_Type): New routine.

2016-04-20  Ed Schonberg  <schonberg@adacore.com>

        * sem_ch13.adb (Rep_Item_Too_Late): Better error message for
        an illegal aspect that freezes the entity to which it applies.

2016-04-20  Bob Duff  <duff@adacore.com>

        * a-stwibo.ads, a-stzbou.ads
        ("="): Add overriding keyword before function to avoid crash when
        compiler is called with -gnatyO (check overriding indicators).

2016-04-20  Ed Schonberg  <schonberg@adacore.com>

        * sem_prag.adb (Analyze_Pragma, case Check_Policy):  If this
        is a configuration pragma and it uses the ARG syntax, insert
        the rewritten pragma after the current one rather than using
        Insert_Actions.

2016-04-20  Arnaud Charlet  <charlet@adacore.com>

        * exp_aggr.adb (Backend_Processing_Possible): Add handling of
        C back-end.

2016-04-20  Hristian Kirtchev  <kirtchev@adacore.com>

        * s-imgllu.adb, sem_util.adb, s-imgint.adb, s-imguns.adb,
        s-imglli.adb: Minor reformatting.

2016-04-20  Hristian Kirtchev  <kirtchev@adacore.com>

        * sem_res.adb (Rewrite_Renamed_Operator): Do not rewrite the
        renamed operator when the associated node appears within a
        pre/postcondition.
        * sem_util.ads, sem_util.adb (In_Pre_Post_Condition): New routine.

2016-04-20  Yannick Moy  <moy@adacore.com>

        * osint.adb (Relocate_Path): Fix test when Path is shorter than Prefix.
        * einfo.adb (Set_Overridden_Operation): Add assertion.
        * sem_util.adb (Unique_Entity): for renaming-as-body return the spec
        entity.

2016-04-20  Javier Miranda  <miranda@adacore.com>

        * exp_unst.adb (Append_Unique_Call): New subprogram.
        (Unnest_Subprogram): Replace the unique occurrence
        of Call.Append() by Append_Unique_Call() which protects us from
        adding to the Calls table duplicated entries.

2016-04-20  Arnaud Charlet  <charlet@adacore.com>

        * exp_attr.adb (Is_GCC_Target): Fix for C backend.
        * xref_lib.ads (Dependencies_Tables): instantiate
        Table package with types that guarantee its safe use.
        * s-imgllu.adb, s-imgint.adb, s-imguns.adb, s-imglli.adb: Avoid nested
        procedures.

2016-04-20  Arnaud Charlet  <charlet@adacore.com>

        * exp_attr.adb (Expand_N_Attribute_Reference [Attribute_Valid]):
        Disable expansion when generating C code.
        * sinfo.ads, inline.ads: Minor editing.

2016-04-20  Hristian Kirtchev  <kirtchev@adacore.com>

        * sem_util.adb, contracts.adb, ghost.adb, exp_ch6.adb: Minor
        reformatting.

2016-04-20  Javier Miranda  <miranda@adacore.com>

        * contracts.adb (Build_Postconditions_Procedure): Code cleanup.
        * ghost.adb (Os_OK_Ghost_Context.Is_OK_Declaration): Handle the
        declaration of the internally built _postcondition procedure.

2016-04-20  Arnaud Charlet  <charlet@adacore.com>

        * snames.ads-tmpl (Internal_Attribute_Id, Attribute_Class_Array): Fix
        indentation.
        * sem_util.adb (Is_Unchecked_Conversion_Instance):
        defense against library-level renamings of other functions,
        which are never instances of Unchecked_Conversion.
        * einfo.ads: minor fix of casing in comment

2016-04-20  Ed Schonberg  <schonberg@adacore.com>

        * exp_ch6.adb (Expand_N_Subprogram_Stub): Do not expand a body
        that has been analyzed and expanded already. Qualify the names
        in the proper body for use in the generation of C code.

2016-04-20  Javier Miranda  <miranda@adacore.com>

        * contracts.adb (Build_Postconditions_Procedure): Force its
        inlining when generating C code.
        * sem_attr.adb (Analyze_Attribute_Old_Result): Handle inlined
        _postconditions when generating C code.
        * exp_ch6.adb (Inlined_Subprogram): Inline calls to
        _postconditions when generating C code.
        * sinfo.ads, sinfo.adb (Corresponding_Spec, Set_Corresponding_Spec):
        types of return value and argument changed from Node_Id to
        Entity_Id.

2016-04-20  Vincent Celier  <celier@adacore.com>

        * make.adb, clean.adb, gnatname.adb: Revert previous change for now.

2016-04-20  Eric Botcazou  <ebotcazou@adacore.com>

        * sem_ch12.adb (Analyze_Instance_And_Renamings): Do not reset
        the Has_Delayed_Freeze flag on the anonymous instance node.

2016-04-20  Javier Miranda  <miranda@adacore.com>

        * sem_ch5.adb (Analyze_Iterator_Specification): Remove transient
        scope associated with the renaming object declaration.
        * exp_util.adb (Insert_Actions): Remove handling of iterator
        loop marked as requiring the secondary stack.

2016-04-20  Ed Schonberg  <schonberg@adacore.com>

        * sem_attr.adb (Analyze_Attribute, case 'Image): Implement
        AI12-0124, which extends the functionality of the attribute so it
        reflects the semantics of GNAT 'Img when applied to scalar types.
        * lib-xref.adb: minor whitespace layout fix.

2016-04-20  Vincent Celier  <celier@adacore.com>

        * clean.adb (Gnatclean): Fail if project file specified and
        gprclean is not available.
        * gnatname.adb: Fail is -P is used and gprname is not available.
        * make.adb (Initialize): Fail if project file specified and
        gprbuild is not available.

2016-04-20  Bob Duff  <duff@adacore.com>

        * sem_ch5.adb (Analyze_Iterator_Specification): Do not use secondary
        stack when possible.

2016-04-20  Gary Dismukes  <dismukes@adacore.com>

        * par_sco.adb, sem_util.adb, sem_ch13.adb: Minor typo corrections and
        reformatting.

2016-04-20  Ed Schonberg  <schonberg@adacore.com>

        * sem_prag.adb (Analyze_Pragma, case Default_Storage_Pool):
        If the pragma comes from an aspect specification, verify that
        the aspect applies to an entity with a declarative part.
        * exp_ch5.adb: Code cleanup.

2016-04-20  Ed Schonberg  <schonberg@adacore.com>

        * sem_res.adb (Resolve_If_Expression): If first expression is
        universal, resolve subsequent ones with the corresponding class
        type (Any_Integer or Any_Real).

2016-04-20  Ed Schonberg  <schonberg@adacore.com>

        * sem_ch5.adb (Analyze_Iterator_Specification): If expansion is
        disabled, complete the analysis of the iterator name to ensure
        that reference for entities within are properly generated.

2016-04-20  Arnaud Charlet  <charlet@adacore.com>

        * a-dispat.ads (Yield): add Global contract.
        * a-calend.ads, a-reatim.ads: Added Initializes => Clock_Time.
        * a-taside.adb: Added Initializes => Tasking_State.

2016-04-20  Hristian Kirtchev  <kirtchev@adacore.com>

        * sem_ch13.adb (Build_Invariant_Procedure):
        Reimplement the invariant procedure spec and body insertion.

2016-04-20  Hristian Kirtchev  <kirtchev@adacore.com>

        * sem_ch13.adb (Add_Invariant): Do not replace
        the saved expression of an invariatn aspect when inheriting
        a class-wide type invariant as this clobbers the existing
        expression. Do not use New_Copy_List as it is unnecessary
        and leaves the parent pointers referencing the wrong part of
        the tree. Do not replace the type references for ASIS when
        inheriting a class-wide type invariant as this clobbers the
        existing replacement.

2016-04-20  Ed Schonberg  <schonberg@adacore.com>

        * sem_util.adb (Build_Explicit_Dereference): If the designated
        expression is an entity name, generate reference to the entity
        because it will not be resolved again.

2016-04-19  Arnaud Charlet  <charlet@adacore.com>

        * doc/gnat_rm/standard_and_implementation_defined_restrictions.rst,
        gnat_rm.texi: Update documentation.

2016-04-19  Olivier Hainque  <hainque@adacore.com>

        * par_sco.adb (Traverse_One, case N_Case_Statement):
        Skip pragmas before the first alternative.
        (Traverse_Handled_Statement_Sequence, Exception_Handlers): Likewise.

2016-04-19  Tristan Gingold  <gingold@adacore.com>

        * adaint.c (__gnat_lwp_self): New function (for darwin).
        * s-osinte-darwin.ads, s-osinte-darwin.adb (lwp_self): Import
        of __gnat_lwp_self.

2016-04-19  Olivier Hainque  <hainque@adacore.com>

        * sem_util.adb (Build_Elaboration_Entity): Always request an
        elab counter when preserving control-flow.

2016-04-19  Olivier Hainque  <hainque@adacore.com>

        * sem_ch13.adb (Build_Invariant_Procedure_Declaration): Set
        Needs_Debug_Info when producing SCOs.
        * par_sco.adb (Traverse_Aspects): Fix categorization of
        Type_Invariant to match actual processing as activated depending
        on pragma Assertion_Policy.
        * sem_prag.adb (Analyze_Pragma): Remove special case for
        Name_Invariant regarding SCO generation, which completely disabled
        the production of SCOs for Invariant pragmas and aspects.

2016-04-19  Hristian Kirtchev  <kirtchev@adacore.com>

        * checks.adb, sem_util.adb, sem_res.adb, sem_attr.adb: Minor
        reformatting.

2016-04-19  Ed Schonberg  <schonberg@adacore.com>

        * freeze.adb (Freeze_Profile): Refine predicate that checks
        whether a function that returns a limited view is declared in
        another unit and cannot be frozen at this point.

2016-04-19  Ed Schonberg  <schonberg@adacore.com>

        * exp_aggr.adb (Component_Count): Handle properly superflat
        arrays, i.e. empty arrays where Hi < Lo - 1, to ensure that the
        return value of the function is Natural, rather than leaving
        the handling of such arrays to the caller of this function.

2016-04-19  Arnaud Charlet  <charlet@adacore.com>

        * sem_prag.adb, sem_attr.adb, par-prag.adb, exp_aggr.adb, sem_type.adb
        sem_ch12.adb, sem_ch3.adb, exp_ch7.adb, exp_ch9.adb: Code cleanup.
        * sem_res.adb, sem_util.ads, sem_util.adb (Is_OK_Volatile_Context):
        Promoted from being a nested subprogram in Sem_Res.Resolve_Entity_Name
        to publicly visible routine in Sem_Util.

2016-04-19  Ed Schonberg  <schonberg@adacore.com>

        * checks.adb (Apply_Parameter_Aliasing_Checks): Do not apply
        the check if the type of the actual is By_Reference.

2016-04-19  Arnaud Charlet  <charlet@adacore.com>

        * sem_res.adb (Within_Subprogram_Call): Detect
        also nodes that appear in entry calls.
        (Resolve_Actuals, Insert_Default): Propagate
        dimension information if any, from default expression to the
        copy that appears in the list of actuals.
        * uintp.ads: minor whitespace fix in comment.
        * sem_prag.adb, stringt.adb, inline.adb, lib-xref-spark_specific.adb:
        Minor code cleanup.
        * set_targ.adb (Set_Targ): convert directly from
        Natural to Pos, without intermediate conversion to Int.

2016-04-19  Arnaud Charlet  <charlet@adacore.com>

        * sem_ch6.adb (Process_Formals): Mark suspicious reference to
        SPARK RM in comment.
        * sem_prag.adb (Analyze_Global_Item): Fix reference to SPARK RM
        in comment.
        * sem_res.adb (Property_Error, Resolve_Actuals): Fix reference
        to SPARK RM in both comment and error message.

2016-04-19  Eric Botcazou  <ebotcazou@adacore.com>

        * sem_ch6.adb (Possible_Freeze): If the type is an incomplete
        CW type, then the subprogram must have a delayed freeze. This
        ensures that the backend can properly recover the full view when
        elaborating the access subprogram declaration.

2016-04-19  Ed Schonberg  <schonberg@adacore.com>

        * sem_attr.adb (Resolve_Attribute, case 'Access): Freeze
        overloadable entity if originally overloaded.

2016-04-19  Arnaud Charlet  <charlet@adacore.com>

        * exp_aggr.adb, exp_ch3.adb, exp_ch7.adb, exp_ch9.adb, exp_code.adb,
        exp_fixd.adb, namet.adb, osint.adb, osint.ads, par-ch2.adb,
        sem_ch10.adb, sem_ch12.adb, sem_disp.adb, sem_elab.adb, sem_elim.adb
        sem_util.adb, styleg.adb, styleg.ads, stylesw.ads: Minor code
        clean up.

2016-04-19  Arnaud Charlet  <charlet@adacore.com>

        * sem_util.adb (Copy_Node_With_Replacement):
        use Set_Comes_From_Source instead of directly manipulating
        internals of the node table.
        * sem_util.adb (Within_Scope): refactored to remove duplicated code.
        * sem_aux.adb (Get_Rep_Pragma,
        Subprogram_Body_Entity, Subprogram_Spec): declare variables that
        do not change as constants and initialize them in the declaration.
        (Get_Rep_Pragma, Subprogram_Body_Entity, Subprogram_Spec): declare
        variables that do not change as constants and initialize them
        in the declaration.

2016-04-19  Ed Schonberg  <schonberg@adacore.com>

        * sem_res.adb (Resolve_Entry_Call): If the entry has
        preconditions it is rewritten by means of a wrapper that
        incorporates the original call. Before rewriting generate a
        reference to the entry being called to prevent spurious warnings
        and provide correct cross-reference information.

2016-04-19  Hristian Kirtchev  <kirtchev@adacore.com>

        * sem_disp.adb (Check_Dispatching_Context): Code cleanup. Add
        local constant Scop. Ignore any internally generated loops when
        performing the check concerning an abstract subprogram call
        without a controlling argument.
        * sem_util.ads, sem_util.adb (Current_Scope_No_Loops): New routine.

2016-04-19  Bob Duff  <duff@adacore.com>

        * sem_elab.adb (Check_A_Call): There are cases where we have No
        (Ent) after the Alias loop, even when there was no previous error,
        so we can't assert that there was an error.

2016-04-19  Ed Schonberg  <schonberg@adacore.com>

        * sem_attr.adb (Analyze_Access_Attribute, OK_Self_Reference):
        Reject use of type name as a prefix to 'access within an aggregate
        in a context that is not the declarative region of a type.

2016-04-19  Vincent Celier  <celier@adacore.com>

        * gnatcmd.adb: Make "gnat ls -P" invoke gprls Make "gnat bind
        -P" invoke "gprbuild -b" Make "gnat link -P" invoke "gprbuild
        -l" Fail if the invocation is "gnat find -P" or "gnat xref -P"
        Remove anything related to project files
        * g-mbdira.adb: minor whitespace cleanup
        * g-spipat.adb: minor removal of extra spaces after closing paren

2016-04-19  Ed Schonberg  <schonberg@adacore.com>

        * exp_ch6.adb (Expand_Actuals):  If post-statements are present
        and the enclosing context is a function call or indexing, build
        an Expression_With_Actions for the call.

2016-04-19  Hristian Kirtchev  <kirtchev@adacore.com>

        * lib-writ.adb (Write_With_Lines): Code cleanup. Do not generate
        a with line for an ignored Ghost unit.
        * sem_ch7.adb (Analyze_Package_Declaration): Add local constant
        Par. A child package is Ghost when its parent is Ghost.
        * sem_prag.adb (Analyze_Pragma): Pragma Ghost can now apply to
        a subprogram declaration that acts as a compilation unit.

2016-04-18  Michael Matz  <matz@suse.de>

        * gcc-interface/decl.c (gnat_to_gnu_entity): Use SET_TYPE_ALIGN.
        (gnat_to_gnu_field): Ditto.
        (components_to_record): Ditto.
        (create_variant_part_from): Ditto.
        (copy_and_substitute_in_size): Ditto.
        (substitute_in_type): Ditto.
        * gcc-interface/utils.c (make_aligning_type): Use SET_TYPE_ALIGN.
        (make_packable_type): Ditto.
        (maybe_pad_type): Ditto.
        (finish_fat_pointer_type): Ditto.
        (finish_record_type): Ditto and use SET_DECL_ALIGN.
        (rest_of_record_type_compilation): Use SET_TYPE_ALIGN.
        (create_field_decl): Use SET_DECL_ALIGN.

2016-04-18  Arnaud Charlet  <charlet@adacore.com>

        * einfo.adb (Overridden_Operation): assert that
        function is called for valid arguments.
        * sem_aggr.adb, sem_ch3.adb, sem_ch5.adb, sem_type.adb,
        s-osinte-vxworks.ads, a-ngcefu.adb, sem_ch10.adb, einfo.ads,
        sem_prag.adb, sem_ch12.adb, sem.adb, i-cobol.ads, freeze.adb,
        sem_util.adb, a-chtgop.ads, s-rannum.adb, exp_ch6.adb, s-bignum.adb,
        s-osinte-freebsd.ads, par-ch5.adb, a-chtgbo.ads, a-cofove.adb:
        No space after closing parenthesis except where required for
        layout.
        * sem_res.adb: Minor reformatting.

2016-04-18  Arnaud Charlet  <charlet@adacore.com>

        * exp_ch4.adb (Expand_N_Case_Expression): Convert into a case
        statement when relevant.

2016-04-18  Bob Duff  <duff@adacore.com>

        * a-cuprqu.adb (Enqueue): Properly handle the
        case where the new element has a unique priority.

2016-04-18  Tristan Gingold  <gingold@adacore.com>

        * adaint.h: Define stat structures and functions for iOS
        simulator.

2016-04-18  Arnaud Charlet  <charlet@adacore.com>

        * sem_res.adb (Resolve_Entry_Call): reset
        Is_Overloaded flag after resolving calls to overloaded protected
        operations.
        * exp_spark.adb (Expand_SPARK): call
        Qualify_Entity_Names for tasking nodes, i.e. protected types,
        task types and entries.
        * exp_ch4.adb (Expand_N_If_Expression): Refine previous change
        in case of an unconstrained type.

2016-04-18  Yannick Moy  <moy@adacore.com>

        * sem_eval.adb, sem_eval.ads (Check_Non_Static_Context): Add
        comment to document usage of subprogram in GNATprove.

2016-04-18  Ed Schonberg  <schonberg@adacore.com>

        * sem_prag.adb (Analyze_Pragma, case Test_Case): Improve error
        message for wrong placement of aspect Test_Case.

2016-04-18  Hristian Kirtchev  <kirtchev@adacore.com>

        * einfo.ads: Update the documentation of attribute Renamed_Object.
        * exp_spark.adb (Expand_Potential_Renaming): Reimplemented.

2016-04-18  Gary Dismukes  <dismukes@adacore.com>

        * exp_ch4.adb (Optimize_Length_Comparison): Return immediately
        in the case of AAMP (same as for use of the -gnatd.P switch) to
        suppress this optimization, which avoids creating a dependence
        on the 64-bit arithmetic package.

2016-04-18  Arnaud Charlet  <charlet@adacore.com>

        * exp_ch4.adb: Update comment.

2016-04-18  Eric Botcazou  <ebotcazou@adacore.com>

        * exp_ch6.adb (Expand_Call): Make sure instantiations are
        registered only once as pending here.

2016-04-18  Arnaud Charlet  <charlet@adacore.com>

        * exp_ch4.adb, gnat1drv.adb, opt.ads, sem_res.adb
        (Minimize_Expression_With_Actions): New flag.
        (Adjust_Global_Switches): Set Minimize_Expression_With_Actions
        when generating C.
        (Resolve_Short_Circuit): Redo previous change
        using Minimize_Expression_With_Actions.
        (Expand_N_If_Expression,
        Expand_Short_Circuit_Operator): Restore old code to avoid
        Expression_With_Actions when Minimize_Expression_With_Actions
        is set.

2016-04-18  Vincent Celier  <celier@adacore.com>

        * s-os_lib.adb (Non_Blocking_Spawn, version with Stdout_File and
        Stderr_File): Close local file descriptors when no longer needed.

2016-04-18  Ed Schonberg  <schonberg@adacore.com>

        * sem_ch5.adb (Analyze_Iterator_Specification): Remove SPARK
        mode check that the type of the cursor in an iteration over
        a formal container is not volatile. The proper check on the
        element type is done elsewhere.

2016-04-18  Ed Schonberg  <schonberg@adacore.com>

        * sem_ch6.adb (Process_Formals): Do not set a delay freeze on
        a subprogram that returns a class-wide type, if the subprogram
        is a compilation unit, because otherwise gigi will treat the
        subprogram as external, leading to link errors.

2016-04-18  Arnaud Charlet  <charlet@adacore.com>

        * sem_res.adb (Resolve_Short_Circuit): Do not use
        expression-with-actions when generating C.

2016-04-18  Yannick Moy  <moy@adacore.com>

        * sem_util.adb (Apply_Compile_Time_Constraint_Error): Do not generate
        raise node in GNATprove mode.

2016-04-18  Hristian Kirtchev  <kirtchev@adacore.com>

        * s-fileio.adb: Minor reformatting.
        * sem_prag.adb (Analyze_Input_Item): Add local
        variable Input_OK. Do not consider mappings of generic formal
        parameters to actuals.

2016-04-18  Ed Schonberg  <schonberg@adacore.com>

        * sem_ch5.adb (Get_Cursor_Type): If iterator type is a derived
        type, the cursor is declared in the scope of the parent type.
        (Analyze_Parameter_Specification): A qualified expression with an
        iterator type indicates an iteration over a container (explicit
        or implicit).

2016-04-18  Arnaud Charlet  <charlet@adacore.com>

        * osint-c.ads, osint-c.adb (Delete_C_File, Delete_H_File): New.
        * gnat1drv.adb (Gnat1drv): Delete old C files before regenerating them.
        * debug.adb: Reserve -gnatd.4 to force generation of C files.

2016-04-18  Yannick Moy  <moy@adacore.com>

        * sem_eval.adb (Eval_Arithmetic_Op): Do not issue error on static
        division by zero, instead possibly issue a warning.
        * sem_res.adb (Resolve_Arithmetic_Op): Do not issue error on
        static division by zero, instead add check flag on original
        expression.
        * sem_util.adb, sem_util.ads (Compile_Time_Constraint_Error):
        Only issue error when both SPARK_Mode is On and Warn is False.

2016-04-18  Yannick Moy  <moy@adacore.com>

        * checks.adb (Apply_Scalar_Range_Check): Force
        warning instead of error when SPARK_Mode is On, on index out of
        bounds, and set check flag for GNATprove.

2016-04-18  Hristian Kirtchev  <kirtchev@adacore.com>

        * sem_prag.adb (Check_In_Out_States.Check_Constituent_Usage):
        Update the comment on usage.  Reimplemented.
        (Check_Input_States.Check_Constituent_Usage): Update the comment
        on usage. A Proof_In constituent can now refine an Input state
        as long as there is at least one Input constituent present.

2016-04-18  Ed Schonberg  <schonberg@adacore.com>

        * sem_ch6.adb (Check_Inline_Pragma): Use the Sloc of the
        body id as the sloc of the entity in the generated subprogram
        declaration, to avoid spurious conformance errors when style
        checks are enabled.

2016-04-18  Ed Schonberg  <schonberg@adacore.com>

        * sem_ch4.adb (Analyze_Selected_Component, Has_Dereference):
        Refine check on illegal calls to entities within a task body,
        when the entity is declared in an object of the same type. In
        a generic context there might be no explicit dereference but if
        the prefix includes an access type the construct is legal.

2016-04-18  Arnaud Charlet  <charlet@adacore.com>

        * rtsfind.ads, rtsfind.adb (RE_Id, RE_Unit_Table): add
        RE_Default_Priority.

2016-04-18  Bob Duff  <duff@adacore.com>

        * sem_prag.adb (Check_Arg_Is_Local_Name): Don't do the check
        if the pragma came from an aspect specification.

2016-04-18  Gary Dismukes  <dismukes@adacore.com>

        * gnat1drv.adb, contracts.adb: Minor reformatting and wording fixes.

2016-04-18  Ed Schonberg  <schonberg@adacore.com>

        * sem_ch6.adb (Analyze_Subprogram_Body_Helper): To suppress
        superfluous conformance check on an inlined body with a previous
        spec, use the fact that the generated declaration does not come
        from source. We must treat the entity as coming from source to
        enable some back-end inlining when pragma appears after the body.

2016-04-18  Gary Dismukes  <dismukes@adacore.com>

        * lib-xref-spark_specific.adb, par-ch2.adb, errout.ads,
        exp_intr.adb: Minor reformatting and typo corrections.

2016-04-18  Ed Schonberg  <schonberg@adacore.com>

        * sem_ch6.adb: Code cleanup.

2016-04-18  Thomas Quinot  <quinot@adacore.com>

        * sem_ch13.adb: Minor reformatting and error message tweaking
        (remove extraneous spaces).

2016-04-18  Johannes Kanig  <kanig@adacore.com>

        * gnat1drv.adb (Gnat1drv): Force loading of System unit for SPARK.

2016-04-18  Bob Duff  <duff@adacore.com>

        * s-fileio.adb (Fopen_Mode): If Mode = Out_File, and the file
        exists, and it's a fifo, we use "w" as the open string instead of
        "r+". This is necessary to make a write to the fifo block until
        a reader is ready.

2016-04-18  Hristian Kirtchev  <kirtchev@adacore.com>

        * sem_attr.adb (Denote_Same_Function): Account
        for a special case where a primitive of a tagged type inherits
        a class-wide postcondition from a parent type.

2016-04-18  Hristian Kirtchev  <kirtchev@adacore.com>

        * par-ch2.adb (P_Expression_Or_Reserved_Word): New routine.
        (P_Pragma): Signal Scan_Pragma_Argument_Association when the use
        of reserved words is OK.
        (Scan_Pragma_Argument_Association):
        Add new formal Reserved_Words_OK and update the comment on
        usage. Code cleanup. Parse an expression or a reserved word in
        identifier form for pragmas Restriction_Warnings and Restrictions
        No_Use_Of_Attribute.
        * restrict.adb (Check_Restriction_No_Use_Of_Attribute):
        Reimplemented.  (Check_Restriction_No_Use_Of_Pragma): Code cleanup.
        (Set_Restriction_No_Specification_Of_Aspect): Properly set the warning
        flag for an aspect.
        (Set_Restriction_No_Use_Of_Attribute): Properly set the warning
        flag for an attribute.  (Set_Restriction_No_Use_Of_Entity):
        Update the parameter profile.
        (Set_Restriction_No_Use_Of_Pragma): Properly set the warning flag for
        a pragma.
        * restrict.ads (Check_Restriction_No_Use_Of_Attribute): Update
        the comment on usage.
        (Set_Restriction_No_Use_Of_Entity): Update the parameter profile.
        * sem_attr.adb (Analyze_Attribute): Check restriction
        No_Use_Of_Attribute.
        * sem_ch13.adb (Analyze_Attribute_Definition_Clause): Check
        restriction No_Use_Of_Attribute before any rewritings have
        taken place.
        * sem_prag.adb (Analyze_Pragma): Check restriction
        No_Use_Of_Pragma before any rewritings have taken place.

2016-04-18  Bob Duff  <duff@adacore.com>

        * sem_ch6.adb (Is_Inline_Pragma): The pragma
        argument can be a selected component, which has no Chars field,
        so we need to deal with that case (use the Selector_Name).
        (Check_Inline_Pragma): We need to test Is_List_Member before
        calling In_Same_List, because in case of a library unit, they're
        not in lists, so In_Same_List fails an assertion.

2016-04-18  Bob Duff  <duff@adacore.com>

        * namet.ads, namet.adb: Add an Append that appends a
        Bounded_String onto a Bounded_String. Probably a little more
        efficient than "Append(X, +Y);". Also minor cleanup.
        (Append_Decoded, Append_Decoded_With_Brackets, Append_Unqualified,
        Append_Unqualified_Decoded): Make sure these work with non-empty
        buffers.
        * casing.ads, casing.adb (Set_Casing): Pass a Bounded_String
        parameter, defaulting to Global_Name_Buffer.
        * errout.ads, errout.adb (Adjust_Name_Case): Pass a
        Bounded_String parameter, no default.
        * exp_ch11.adb (Expand_N_Raise_Statement): Use local
        Bounded_String instead of Global_Name_Buffer.
        * exp_intr.ads, exp_intr.adb (Write_Entity_Name): Rename it
        to Append_Entity_Name, and pass a Bounded_String parameter,
        instead of using globals.
        (Add_Source_Info): Pass a Bounded_String parameter, instead of
        using globals.
        (Expand_Source_Info): Use local instead of globals.
        * stringt.ads, stringt.adb (Append): Add an Append procedure
        for appending a String_Id onto a Bounded_String.
        (String_To_Name_Buffer, Add_String_To_Name_Buffer): Rewrite in
        terms of Append.
        * sem_prag.adb (Set_Error_Msg_To_Profile_Name): Adjust for new
        Adjust_Name_Case parameter.
        * erroutc.adb, uname.adb: Don't pass D => Mixed_Case to
        Set_Casing; that's the default.
        * lib-xref-spark_specific.adb (Add_SPARK_Scope): Pretend that calls to
        protected subprograms are entry calls; otherwise it is not possible to
        distinguish them from regular subprogram calls.

2016-04-18  Gary Dismukes  <dismukes@adacore.com>

        * sem_ch13.adb (Has_Good_Profile): Improvement
        of error message. Now indicates subtype_mark of formal parameter
        rather than the formal's name, plus minor rewording.

2016-04-18  Pascal Obry  <obry@adacore.com>

        * adaint.c, adaint.h, s-os_lib.ads: Add new routine Current_Process_Id.

2016-04-18  Hristian Kirtchev  <kirtchev@adacore.com>

        * stringt.adb, exp_ch6.adb, sem_ch13.adb: Minor reformatting.

2016-04-18  Gary Dismukes  <dismukes@adacore.com>

        * par-ch4.adb, sem_prag.adb: Minor reformatting.

2016-04-18  Bob Duff  <duff@adacore.com>

        * sinput.ads, sinput.adb (Build_Location_String): Take a
        parameter instead of using a global variable.  The function
        version no longer destroys the Name_Buffer.
        * stringt.ads, stringt.adb (String_From_Name_Buffer): Take a
        parameter, which defaults to the Global_Name_Buffer, so some
        calls can avoid the global.
        * exp_ch11.adb, exp_intr.adb: Use new interfaces above
        to avoid using globals. All but one call to Build_Location_String
        avoids the global. Only one call to String_From_Name_Buffer
        avoids it.

2016-04-18  Hristian Kirtchev  <kirtchev@adacore.com>

        * namet.adb, namet.ads, exp_unst.adb: Minor reformatting.

2016-04-18  Hristian Kirtchev  <kirtchev@adacore.com>

        * sem_eval.adb (Choice_Matches): Check the expression
        against the predicate values when the choice denotes a
        subtype with a static predicate.
        (Eval_Membership_Op): Code cleanup. Remove the suspicious guard which
        tests for predicates.
        (Is_OK_Static_Subtype): A subtype with a dynamic predicate
        is not static.  (Is_Static_Subtype): A subtype with a dynamic
        predicate is not static.
        * sem_eval.ads (Is_OK_Static_Subtype): Update the comment on usage.
        (Is_Static_Subtype): Update the comment on usage.

2016-04-18  Hristian Kirtchev  <kirtchev@adacore.com>

        * sem_prag.adb (Analyze_Input_Item): Allow
        generic formals to appear as initialization items.

2016-04-18  Ed Schonberg  <schonberg@adacore.com>

        * sem_ch13.adb (Analyze_Stream_TSS_Definition,
        Has_Good_Profile): Additional error message to indicate that
        the second parameter of the subprogram must be a first subtype.

2016-04-18  Ed Schonberg  <schonberg@adacore.com>

        * sem_ch6.adb (Analyze_Subprogram_Body_Helper, Is_Inline_Pragma):
        Use the pragma lookahead that determines whether a subprogram
        is to be inlined, when some level of backend optimization is
        required.
        * sem_ch12.ads, sem_ch12.adb (Add_Pending_Instantiation): Factorize
        code used to create an instance body when needed for inlining.
        * exp_ch6.adb (Expand_Call): When a call is to be inlined, and the
        call appears within an instantiation that is not a compilation
        unit, add a pending instantiation for the enclosing instance,
        so the backend can inline in turn the calls contained in the
        inlined body.

2016-04-18  Ed Schonberg  <schonberg@adacore.com>

        * sem_prag.adb (Build_Pragma_Check_Equivalent): The mapping
        that relates operations of the parent type to the operations of
        the derived type has three distinct sources:
        a) explicit operations of the derived type carry an
        Overridden_Operation that designates the operation in the
        ancestor.
        b) Implicit operations that are inherited by the derived type
        carry an alias that may be an explicit subprogram (in which case
        it may have an Overridden_ Operation indicator) or may also be
        inherited and carry its own alias.
        c) If the parent type is an interface, the operation of the
        derived type does not override, but the interface operation
        indicates the operation that implements it.
        * sem_prag.adb: Minor reformatting.
        * sem_prag.adb (Check_External_Property): Update
        the comment on usage. Reimplement.

2016-04-18  Ed Schonberg  <schonberg@adacore.com>

        * exp_ch5.adb (Expand_Assignment_Statement): In restricted
        profiles such as ZFP, ceiling priority is not available.

2016-04-18  Bob Duff  <duff@adacore.com>

        * namet-sp.ads: Minor typo fix, ironically in 'Spelling_Checker'.

2016-04-18  Bob Duff  <duff@adacore.com>

        * sem_elab.adb (Output_Calls): Use
        Get_Name_String, to clearly indicate that the global Name_Buffer
        is being used. The previous code used Is_Internal_Name, which
        returns a Boolean, but also has a side effect of setting the
        Name_Buffer. Then it called the other Is_Internal_Name, which uses
        the Name_Buffer for its input. And then it called Error_Msg_N,
        again using the Name_Buffer. We haven't eliminated the global
        usage here, but we've made it a bit clearer.
        This also allows us to have a side-effect-free version of
        Is_Internal_Name.
        * namet.ads, namet.adb: Provide a type Bounded_String, along with
        routines that can be used without using global variables. Provide
        Global_Name_Buffer so existing code can continue to use the
        global. Mark the routines that use globals as obsolete.  New code
        shouldn't call the obsolete ones, and we should clean up existing
        code from time to time.
        Name_Find_Str is renamed as Name_Find.
        * namet.h: Changed as necessary to interface to the new version
        of Namet.
        * bindgen.adb, exp_unst.adb: Name_Find_Str is renamed as
        Name_Find.

2016-04-18  Yannick Moy  <moy@adacore.com>

        * sem_util.adb, sem_util.ads (Has_Full_Default_Initialization): used
        outside of GNATprove, hence it should not be removed.

2016-04-18  Hristian Kirtchev  <kirtchev@adacore.com>

        * sem_prag.adb (Analyze_Refinement_Clause):
        The refinement of an external abstract state can now mention
        non-external constituents.
        (Check_External_Property): Update all SPARK RM references.

2016-04-18  Bob Duff  <duff@adacore.com>

        * exp_intr.adb: Remove some duplicated code.

2016-04-18  Yannick Moy  <moy@adacore.com>

        * a-nudira.adb, a-nudira.ads, a-nuflra.adb, a-nuflra.ads: Mark
        package spec and body out of SPARK.

2016-04-18  Johannes Kanig  <kanig@adacore.com>

        * spark_xrefs.ads: Minor comment update.

2016-04-18  Johannes Kanig  <kanig@adacore.com>

        * gnat1drv.adb (Gnat1drv): Force loading of System
        unit for SPARK.

2016-04-18  Bob Duff  <duff@adacore.com>

        * a-cuprqu.adb: Correction to previous change. If a new node
        is inserted at the front of the queue (because it is higher
        priority than the previous front node), we need to update
        Header.Next_Unequal -- not just in the case where the queue was
        previously empty.

2016-04-18  Bob Duff  <duff@adacore.com>

        * a-cuprqu.ads: Change the representation of List_Type from a
        singly-linked list to a doubly-linked list. In addition, add a
        pointer Next_Unequal, which points past a possibly-long chain
        of equal-priority items. This increases efficiency, especially
        in the case of many equal-priority items.
        * a-cuprqu.adb (Dequeue, Enqueue): Rewrite algorithms to take
        advantage of new data structure.
        (Finalize): Rewrite in terms of Dequeue, for simplicity.

2016-04-18  Yannick Moy  <moy@adacore.com>

        * contracts.adb (Analyze_Object_Contract,
        Analyze_Protected_Contract): Remove tests performed in GNATprove.
        * sem_util.adb, sem_util.ads (Has_Full_Default_Initialization):
        Remove query for tests performed in GNATprove.

2016-04-18  Ed Schonberg  <schonberg@adacore.com>

        * sem_aggr.adb (Resolve_Record_Aggregate): If
        Warn_On_Redundant_Constructs is enabled, report a redundant box
        association that does not cover any components, as it done for
        redundant others associations in case statements.

2016-04-18  Ed Schonberg  <schonberg@adacore.com>

        * sem_prag.adb (Collect_Inherited_Class_Wide_Conditions):
        Analyze the generated Check pragma for an inherited condition so
        that it does not freeze the dispatching type of the primitive
        operation, because it is pre-analyzed at the point of the
        subprogram declaration (and not in the subprogram body, as is
        done during regular expansion).

2016-04-18  Vincent Celier  <celier@adacore.com>

        * ali.ads: Increase the range of all _Id types to 100 millions.

2016-04-18  Gary Dismukes  <dismukes@adacore.com>

        * sem_warn.adb (Check_References): Change warning to suggest
        using pragma Export rather than saying "volatile has no effect".

2016-04-18  Bob Duff  <duff@adacore.com>

        * g-souinf.ads (Compilation_ISO_Date): New function to return
        the current date in ISO form.
        * exp_intr.adb (Expand_Source_Info, Add_Source_Info): Expand
        a call to Compilation_ISO_Date into a string literal containing
        the current date in ISO form.
        * exp_intr.ads (Add_Source_Info): Improve documentation.
        * sem_intr.adb (Check_Intrinsic_Subprogram): Recognize
        Compilation_ISO_Date.
        * snames.ads-tmpl (Name_Compilation_ISO_Date): New Name_Id.

2016-04-18  Eric Botcazou  <ebotcazou@adacore.com>

        * layout.adb (Set_Elem_Alignment): Extend setting of alignment
        to subtypes that are not first subtypes.

2016-04-18  Ed Schonberg  <schonberg@adacore.com>

        * sem_prag.ads (Collect_Inherited_Class_Wide_Conditions):
        Simplify interface.
        * sem_prag.adb (Collect_Inherited_Class_Wide_Conditions): Insert
        generated pragmas after subprogram declaration, rather than in
        the corresponding subprogram body.
        * sem_ch6.adb (New_Overloaded_Entity): In GNATProve
        mode, if the operation is overridding, call
        Collect_Inherited_Class_Wide_Conditions to generate the
        corresponding pragmas immediately after the corresponding
        subprogram declaration.

2016-04-18  Arnaud Charlet  <charlet@adacore.com>

        * spark_xrefs.ads (Xref_Index, Scope_Index, File_Index): restrict
        type to natural numbers.
        (Stype): document code characters for concurrent entities.

2016-04-18  Olivier Hainque  <hainque@adacore.com>

        * targparm.ads: Update the Frontend_Exceptions default internal
        value.
        (Frontend_Exceptions_On_Target): Change default value to True.

2016-04-18  Ed Schonberg  <schonberg@adacore.com>

        * sem_ch4.adb (Analyze_Selected_Component): Refine error
        detection when a selected component in the body of a synchronized
        type is a reference to an object of the same type declared
        elsewhere. The construct is legal if the prefix of the selected
        component includes an explicit dereference at any point.

2016-04-18  Hristian Kirtchev  <kirtchev@adacore.com>

        * sem_ch3.adb (Analyze_Object_Declaration): Do not consider
        internally generated expressions when trying to determine whether
        a formal parameter of a tagged type subject to Extensions_Visible
        False is used to initialize an object.
        * sem_ch4.adb (Analyze_Type_Conversion): Do not consider
        internally generated expressions when trying to determine whether
        a formal parameter of a tagged type subject to Extensions_Visible
        False is used in a type conversion.

2016-04-18  Hristian Kirtchev  <kirtchev@adacore.com>

        * sem_res.adb (Is_Protected_Operation_Call):
        Add guards to account for a non-decorated selected component.

2016-04-18  Yannick Moy  <moy@adacore.com>

        * sem_ch6.adb (Analyze_Subprogram_Body_Helper): Improve
        implementation of Body_Has_SPARK_Mode_On.
        * sem_prag.adb, sem_prag.ads (Get_SPARK_Mode_From_Annotation):
        New function replacing previous Get_SPARK_Mode_From_Pragma, that
        deals also with aspects.
        (Get_SPARK_Mode_Type): Make function internal again.
        * inline.adb, sem_ch7.adb, sem_util.adb: Use new
        Get_SPARK_Mode_From_Annotation.

2016-04-18  Hristian Kirtchev  <kirtchev@adacore.com>

        * contracts.adb (Analyze_Object_Contract): Update references to
        SPARK RM.
        * freeze.adb (Freeze_Entity): Update references to SPARK RM.
        * ghost.adb Add with and use clauses for Sem_Disp.
        (Check_Ghost_Derivation): Removed.
        (Check_Ghost_Overriding):
        Reimplemented.  (Check_Ghost_Policy): Update references to SPARK RM.
        (Check_Ghost_Primitive): New routine.
        (Check_Ghost_Refinement): New routine.  (Is_OK_Ghost_Context):
        Update references to SPARK RM.  (Is_OK_Pragma): Update references
        to SPARK RM. Predicates are now a valid context for references
        to Ghost entities.
        * ghost.ads (Check_Ghost_Derivation): Removed.
        (Check_Ghost_Overriding): Update the comment on usage.
        (Check_Ghost_Primitive): New routine.
        (Check_Ghost_Refinement): New routine.
        (Remove_Ignored_Ghost_Code): Update references to SPARK RM.
        * sem_ch3.adb (Process_Full_View): Remove the now obsolete check
        related to Ghost derivations
        * sem_ch6.adb (Check_Conformance): Remove now obsolete check
        related to the convention-like behavior of pragma Ghost.
        (Check_For_Primitive_Subprogram): Verify that the Ghost policy
        of a tagged type and its primitive agree.
        * sem_prag.adb (Analyze_Pragma): Update references to SPARK
        RM. Move the verification of pragma Assertion_Policy Ghost
        to the proper place. Remove the now obsolete check related
        to Ghost derivations.
        (Collect_Constituent): Add a call to Check_Ghost_Refinement.
        * sem_res.adb (Resolve_Actuals): Update references to SPARK RM.

2016-04-18  Eric Botcazou  <ebotcazou@adacore.com>

        * layout.adb: Fix more minor typos in comments.

2016-04-18  Hristian Kirtchev  <kirtchev@adacore.com>

        * a-calend.ads, sem_prag.adb, sem_ch6.adb: Minor reformatting.

2016-04-18  Ed Schonberg  <schonberg@adacore.com>

        * sem_ch6.adb (Analyze_Subprogram_Body_Helper): In GNATprove
        mode, collect inherited class-wide conditions to generate the
        corresponding pragmas.
        * sem_prag.ads (Build_Pragma_Check_Equivalent): Moved from contracts
        * contracts.adb (Collect_Inherited_Class_Wide_Conditions): New
        procedure for overriding subprograms, used to generate the pragmas
        corresponding to an inherited class- wide pre- or postcondition.
        * sem_prag.adb (Build_Pragma_Check_Equivalent): moved here
        from contracts.adb (Replace_Condition_Entities): Subsidiary
        Build_Pragma_Check_Equivalent, to implement the proper semantics
        of inherited class-wide conditions, as given in AI12-0113.
        (Process_Class_Wide_Condition): Removed.
        (Collect_Inherited_Class_Wide_Conditions): Iterate over pragmas
        in contract of subprogram, to collect inherited class-wide
        conditions.
        (Build_Pragma_Check_Equivalent): Moved to sem_prag.adb

2016-04-18  Yannick Moy  <moy@adacore.com>

        * a-calend.adb (Ada.Calendar): Mark package body as SPARK_Mode Off.
        * a-calend.ads (Ada.Calendar): Mark package spec as
        SPARK_Mode and add synchronous external abstract state Clock_Time.

2016-04-18  Yannick Moy  <moy@adacore.com>

        * sem_res.adb (Resolve_Call): Prevent inlining of
        calls inside expression functions.  Factor previous code issuing
        errors to call Cannot_Inline instead, which does appropriate
        processing of message for GNATprove.

2016-04-18  Arnaud Charlet  <charlet@adacore.com>

        * einfo.ads, sem_ch3.adb, sem_ch8.adb, osint-l.adb, rtsfind.adb,
        osint-b.adb: Cleanups.

2016-04-18  Yannick Moy  <moy@adacore.com>

        * sem_ch6.adb (Analyze_Subprogram_Body_Helper): Only create
        body to inline in GNATprove mode when SPARK_Mode On applies to
        subprogram body.
        * sem_prag.adb, sem_prag.ads (Get_SPARK_Mode_Type): Make function
        public.

2016-04-18  Eric Botcazou  <ebotcazou@adacore.com>

        * layout.adb: Fix minor typo in comment.
        * inline.adb: Fix minor pasto.
        * sem_ch12.ads: Fix minor typos in comments.

2016-04-18  Ed Schonberg  <schonberg@adacore.com>

        * sem_disp.adb (Check_Dispatching_Call): Major rewriting to
        handle some complex cases of tag indeterminate calls that are
        actuals in other dispatching calls that are themselves tag
        indeterminate.
        (Check_Dispatching_Context): Add parameter to support recursive
        check for an enclosing construct that may provide a tag for a
        tag-indeterminate call.

2016-04-18  Hristian Kirtchev  <kirtchev@adacore.com>

        * sem_prag.adb (Analyze_Depends_In_Decl_Part):
        Add global variables Task_Input_Seen and Task_Output_Seen.
        (Analyze_Global_Item): Detect an illegal use of the current
        instance of a single protected/task type in a global annotation.
        (Analyze_Input_Output): Inputs and output related to the current
        instance of a task unit are now tracked.
        (Check_Usage): Require
        the presence of the current instance of a task unit only when
        one input/output is available.  (Current_Task_Instance_Seen):
        New routine.
        (Is_CCT_Instance): New parameter profile. Update
        the comment on usage. The routine now properly recognizes several
        cases related to single protected/task types.

2016-04-18  Hristian Kirtchev  <kirtchev@adacore.com>

        * freeze.adb (Freeze_Entity): Use New_Freeze_Node
        to create a brand new freeze node. This handles a case where an
        ignored Ghost context is freezing something which is not ignored
        Ghost and whose freeze node should not be removed from the tree.
        (New_Freeze_Node): New routine.

2016-04-18  Jerome Lambourg  <lambourg@adacore.com>

        * sigtramp.h (__gnat_set_is_vxsim) New function to
        tell sigtramp-vxworks to handle vxsim signal contexts.  *
        sigtramp-vxworks.c (__gnat_sigtramp) Take into account the
        differences in the sigcontext structure between the expected
        regular x86 or x86_64 ones and the ones received in case of
        exexution on the vxworks simulator.
        * init.c: also compute is_vxsim in case of x86_64-vx7 target. Provide
        this information to sigtramp-vxworks.c. Remove the old mechanism for
        vxsim.
        * init-vxsim.c, sigtramp-vxworks-vxsim.c: remove, now obsolete.

2016-04-18  Eric Botcazou  <ebotcazou@adacore.com>

        * exp_ch3.adb (Inline_Init_Proc): New function returning
        whether the initialization procedure of a type should be
        inlined.  Return again True for controlled type themselves.
        (Build_Array_Init_Proc): Call it to set Set_Is_Inlined on Init_Proc.
        (Build_Record_Init_Proc): Likewise.

2016-04-18  Arnaud Charlet  <charlet@adacore.com>

        * gnatvsn.ads (Library_Version): Bump to 7.

2016-04-18  Ed Schonberg  <schonberg@adacore.com>

        * sem_ch6.adb (Analyze_Expression_Function): Set Inlined flag
        on the entity of a subprogram declaration that is completed by
        an expression function.

2016-04-18  Ed Schonberg  <schonberg@adacore.com>

        * sem_util.adb (Is_Current_Instance): A entity given by a subtype
        declaration can appear in an aspect specification for a dynamic
        predicate, and a pragma for aspect Predicate_Failure.
        * exp_util.adb (Replace_Subtype_References): Replace current
        occurrences of the subtype to which a dynamic predicate applies,
        byt the expression that triggers a predicate check. Needed to
        implement new aspect Predicate_Failure.

2016-04-18  Arnaud Charlet  <charlet@adacore.com>

        * a-intsig.ads, a-intsig.adb: Removed, no longer used.
        * Makefile.rtl: update accordingly.

2016-04-18  Eric Botcazou  <ebotcazou@adacore.com>

        * sem_type.adb (Disambiguate): Call Covers only when necessary
        for standard operators.

2016-04-18  Eric Botcazou  <ebotcazou@adacore.com>

        * atree.ads (Num_Extension_Nodes): Add couple of figures
        to comment.
        * atree.adb: Add GNAT.Heap_Sort_G dependency.
        (Print_Statistics): New exported procedure to print statistics.

2016-04-18  Eric Botcazou  <ebotcazou@adacore.com>

        * exp_ch3.adb (Build_Record_Init_Proc): Do not mark the procedure
        as to be inlined if the type needs finalization.

2016-04-18  Jerome Lambourg  <lambourg@adacore.com>

        * sigtramp-vxworks-target.inc: sigtramp-vxworks: force the stack
        alignment for x86_64.
        * init.c: Better fix for guard page reset on x86_64-vx7.
        Do not try to retrieve the page that actually raised
        the signal as the probing mechanism used on x86_64 do not allow
        such retrieval. We thus just test if the guard page is active,
        and re-activate it if not.

2016-04-18  Arnaud Charlet  <charlet@adacore.com>

        * a-sytaco.adb (Suspension_Object): Aspect Default_Initial_Condition
        added.

2016-04-18  Jerome Lambourg  <lambourg@adacore.com>

        * affinity.c: Use the proper type for task id.
        * init.c (__gnat_inum_to_ivec): ivec is a pointer.

2016-04-18  Arnaud Charlet  <charlet@adacore.com>

        * sem_prag.adb (Process_Convention): Relax rule on exporting
        Intrinsic types if Relaxed_RM_Semantics is True.

2016-04-18  Vincent Celier  <celier@adacore.com>

        * sem_ch3.adb, lib.ads, sinfo.ads, sem_ch10.adb, einfo.adb, einfo.ads,
        checks.ads, sem_ch12.adb, sem.adb, sem_util.adb, sem_util.ads,
        sem_res.adb, sem_attr.adb, par.adb, exp_ch4.adb, errout.ads,
        sem_ch4.adb, atree.adb, atree.ads, sem_warn.adb, treepr.adb,
        exp_ch3.ads, exp_unst.adb: Change "descendent" to
        "descendant" in comments, error messages and identifiers.
        * gcc-interface/decl.c: Ditto.

2016-04-18  Eric Botcazou  <ebotcazou@adacore.com>

        * sem_type.adb (Operator_Matches_Spec): Call First_Formal on
        New_S only once at the beginning of the function.

2016-04-02  Eric Botcazou  <ebotcazou@adacore.com>

        * gcc-interface/decl.c (components_to_record): Restrict the previous
        change to fields with variable size.

2016-03-27  Eric Botcazou  <ebotcazou@adacore.com>

        * gcc-interface/decl.c (components_to_record): Add special case for
        single field with representation clause at offset 0.

2016-03-16  Svante Signell  <svante.signell@gmail.com>

        * gcc-interface/Makefile.in: Add support for x86 GNU/Hurd.
        * s-osinte-gnu.ads: New file.

2016-03-13  Eric Botcazou  <ebotcazou@adacore.com>

        * system-vxworks-m68k.ads (Stack_Check_Probes): Set to True.
        (Stack_Check_Limits): Set to False.
        * system-vxworks-mips.ads (Stack_Check_Probes): Set to True.
        (Stack_Check_Limits): Set to False.
        * system-vxworks-ppc.ads (Stack_Check_Probes): Set to True.
        (Stack_Check_Limits): Set to False.
        * system-vxworks-sparcv9.ads (Stack_Check_Probes): Set to True.
        (Stack_Check_Limits): Set to False.
        * system-vxworks-x86.ads (Stack_Check_Probes): Set to True.
        (Stack_Check_Limits): Set to False.

2016-03-07  Eric Botcazou  <ebotcazou@adacore.com>

        * gcc-interface/trans.c (statement_node_p): New predicate.
        (gnat_to_gnu): Invoke it to detect statement nodes.  In ASIS mode, do
        not return dummy results for expressions attached to packed array
        implementation types.

2016-03-07  Eric Botcazou  <ebotcazou@adacore.com>

        * gcc-interface/decl.c (gnat_to_gnu_entity) <E_Variable>: Always mark
        the expression of a renaming manually in case #3.

2016-03-02  Dominik Vogt  <vogt@linux.vnet.ibm.com>

        * system-linux-s390.ads: Enable Stack_Check_Probes.
        * system-linux-s390.ads: Likewise.

2016-02-29  Martin Liska  <mliska@suse.cz>

        * gcc-interface/utils.c (set_reverse_storage_order_on_pad_type):
        Replace ENABLE_CHECKING macro with flag_checking.

2016-02-29  Eric Botcazou  <ebotcazou@adacore.com>

        * gcc-interface/decl.c (gnat_to_gnu_entity) <E_Access_Type>: Retrofit
        handling of unconstrained array types as designated types into common
        processing.  Also handle array types as incomplete designated types.

2016-02-29  Eric Botcazou  <ebotcazou@adacore.com>

        * gcc-interface/decl.c (gnat_to_gnu_entity) <Concurrent types>: In
        ASIS mode, fully lay out the minimal record type.

2016-02-29  Eric Botcazou  <ebotcazou@adacore.com>

        * gcc-interface/trans.c (finalize_nrv_r): Remove obsolete code.
        (build_return_expr): Likewise.
        (Call_to_gnu): If this is a function call and there is no target,
        create a temporary for the return value for all aggregate types,
        but never create it for a return statement.  Push a binding level
        around the call in more cases.  Remove obsolete code.

2016-02-29  Eric Botcazou  <ebotcazou@adacore.com>

        * gcc-interface/ada-tree.h (DECL_RETURN_VALUE_P): New macro.
        * gcc-interface/gigi.h (gigi): Remove useless attribute.
        (gnat_gimplify_expr): Likewise.
        (gnat_to_gnu_external): Declare.
        * gcc-interface/decl.c (gnat_to_gnu_entity) <E_Constant>: Factor out
        code dealing with the expression of external constants into...
        Invoke gnat_to_gnu_external instead.
        <E_Variable>: Invoke gnat_to_gnu_external to translate renamed objects
        when not for a definition.  Deal with COMPOUND_EXPR and variables with
        DECL_RETURN_VALUE_P set for renamings and with the case of a dangling
        'reference to a function call in a renaming.  Remove obsolete test and
        adjust associated comment.
        * gcc-interface/trans.c (Call_to_gnu): Set DECL_RETURN_VALUE_P on the
        temporaries created to hold the return value, if any.
        (gnat_to_gnu_external): ...this.  New function.
        * gcc-interface/utils.c (create_var_decl): Detect a constant created
        to hold 'reference to function call.
        * gcc-interface/utils2.c (build_unary_op) <ADDR_EXPR>: Add folding
        for COMPOUND_EXPR in the DECL_RETURN_VALUE_P case.

2016-02-17  Eric Botcazou  <ebotcazou@adacore.com>

        * exp_ch4.adb (Expand_N_Indexed_Component): Activate synchronization if
        the prefix denotes an entity which Has_Atomic_Components.
        * gcc-interface/trans.c (node_is_atomic): Return true if the prefix
        denotes an entity which Has_Atomic_Components.

2016-02-17  Eric Botcazou  <ebotcazou@adacore.com>

        * gcc-interface/utils2.c (gnat_protect_expr): Make a SAVE_EXPR only
        for fat pointer or scalar types.

2016-02-16  Eric Botcazou  <ebotcazou@adacore.com>

        * gcc-interface/gigi.h (maybe_debug_type): New inline function.
        * gcc-interface/misc.c (gnat_get_array_descr_info): Use it.
        Call maybe_character_value on the array bounds.  Get to the base type
        of the index type and call maybe_debug_type on it.
        * gcc-interface/utils.c (finish_character_type): Add special treatment
        for char_type_node.

2016-02-16  Eric Botcazou  <ebotcazou@adacore.com>

        * gcc-interface/misc.c (gnat_enum_underlying_base_type): New function.
        (LANG_HOOKS_ENUM_UNDERLYING_BASE_TYPE): Define to above.

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

        * prj-tree.ads: Spelling fixes - behaviour -> behavior and
        neighbour -> neighbor.
        * prep.adb: Likewise.
        * prj.ads: Likewise.
        * prepcomp.adb: Likewise.
        * g-socket.ads: Likewise.
        * s-imgrea.adb: Likewise.
        * a-calend.adb: Likewise.
        * exp_disp.adb: Likewise.
        * doc/gnat_ugn/gnat_utility_programs.rst: Likewise.
        * g-socket.adb: Likewise.
        * sem_ch12.adb: Likewise.
        * terminals.c: Likewise.

2016-02-08  Bernd Schmidt  <bschmidt@redhat.com>

        * gcc-interface/misc.c (gnat_init): Remove second argument in call to
        build_common_tree_nodes.

2016-02-08  Eric Botcazou  <ebotcazou@adacore.com>

        * gcc-interface/utils.c (create_var_decl): Set again DECL_COMMON and
        DECL_IGNORED_P last.

2016-01-28  Eric Botcazou  <ebotcazou@adacore.com>

        * gcc-interface/gigi.h (enum attr_type): Rename into...
        (enum attrib_type): ...this.
        (struct attrib): Adjust.
        * gcc-interface/decl.c (prepend_one_attribute): Likewise.

2016-01-20  Eric Botcazou  <ebotcazou@adacore.com>

        * exp_ch2.adb (Expand_Current_Value): Make an appropriate character
        literal if the entity is of a character type.
        * gcc-interface/lang.opt (fsigned-char): New option.
        * gcc-interface/misc.c (gnat_handle_option): Accept it.
        (gnat_init): Adjust comment.
        * gcc-interface/gigi.h (finish_character_type): New prototype.
        (maybe_character_type): New inline function.
        (maybe_character_value): Likewise.
        * gcc-interface/decl.c (gnat_to_gnu_entity) <E_Enumeration_Type>: For
        a character of CHAR_TYPE_SIZE, make a signed type if flag_signed_char.
        Set TYPE_ARTIFICIAL early and call finish_character_type on the type.
        <E_Enumeration_Subtype>: For a subtype of character with RM_Size and
        Esize equal to CHAR_TYPE_SIZE, make a signed type if flag_signed_char.
        Copy TYPE_STRING_FLAG from type to subtype.
        <E_Array_Type>: Deal with character index types.
        <E_Array_Subtype>: Likewise.
        * gcc-interface/trans.c (gigi): Replace unsigned_char_type_node with
        char_type_node throughout.
        (build_raise_check): Likewise.
        (get_type_length): Deal with character types.
        (Attribute_to_gnu) <Attr_Pos>: Likewise.  Remove obsolete range check
        code.  Minor tweak.
        <Attr_Pred>: Likewise.
        (Loop_Statement_to_gnu): Likewise.
        (Raise_Error_to_gnu): Likewise.
        <N_Indexed_Component>: Deal with character index types.  Remove
        obsolete code.
        <N_Slice>: Likewise.
        <N_Type_Conversion>: Deal with character types.  Minor tweak.
        <N_Unchecked_Type_Conversion>: Likewise.
        <N_In>: Likewise.
        <N_Op_Eq>: Likewise.
        (emit_index_check): Delete.
        * gcc-interface/utils.c (finish_character_type): New function.
        (gnat_signed_or_unsigned_type_for): Deal with built-in character types.
        * gcc-interface/utils2.c (expand_sloc): Replace unsigned_char_type_node
        with char_type_node.
        (build_call_raise): Likewise.
        (build_call_raise_column): Likewise.
        (build_call_raise_range): Likewise.

2016-01-18  Eric Botcazou  <ebotcazou@adacore.com>

        * gcc-interface/gigi.h (build_call_raise_column): Adjust prototype.
        (build_call_raise_range): Likewise.
        (gnat_unsigned_type): Delete.
        (gnat_signed_type): Likewise.
        (gnat_signed_or_unsigned_type_for): New prototype.
        (gnat_unsigned_type_for): New inline function.
        (gnat_signed_type_for): Likewise.
        * gcc-interface/cuintp.c (build_cst_from_int): Call build_int_cst.
        * gcc-interface/decl.c (gnat_to_gnu_entity): Likewise.
        (gnat_to_gnu_entity) <E_Array_Type>: Always translate the index types
        and compute their base type from that.
        <E_Array_Subtype>: Remove duplicate declaration.
        * gcc-interface/misc.c (get_array_bit_stride): Call build_int_cst.
        * gcc-interface/trans.c (get_type_length): Likewise.
        (Attribute_to_gnu): Likewise.
        (Loop_Statement_to_gnu): Likewise.
        (Call_to_gnu): Likewise.
        (gnat_to_gnu): Call build_real, build_int_cst, gnat_unsigned_type_for
        and gnat_signed_type_for.  Minor tweaks.
        (build_binary_op_trapv): Likewise.
        (emit_check): Likewise.
        (convert_with_check): Likewise.
        (Raise_Error_to_gnu): Adjust calls to the build_call_raise family of
        functions.  Minor tweaks.
        (Case_Statement_to_gnu): Remove dead code.
        (gnat_to_gnu): Call gnat_unsigned_type_for and gnat_signed_type_for.
        (init_code_table): Minor reordering.
        * gcc-interface/utils.c (gnat_unsigned_type): Delete.
        (gnat_signed_type): Likewise.
        (gnat_signed_or_unsigned_type_for): New function.
        (unchecked_convert): Use directly the size in the test for precision
        vs size adjustments.
        (install_builtin_elementary_types): Call gnat_signed_type_for.
        * gcc-interface/utils2.c (nonbinary_modular_operation): Call
        build_int_cst.
        (build_goto_raise): New function taken from...
        (build_call_raise): ...here.  Call it.
        (build_call_raise_column): Add KIND parameter and call it.
        (build_call_raise_range): Likewise.

2016-01-18  Eric Botcazou  <ebotcazou@adacore.com>

        * gcc-interface/ada-tree.h (TYPE_IMPLEMENTS_PACKED_ARRAY_P): Rename to
        (TYPE_IMPL_PACKED_ARRAY_P): ...this.
        (TYPE_CAN_HAVE_DEBUG_TYPE_P): Do not test TYPE_DEBUG_TYPE.
        * gcc-interface/decl.c (gnat_to_gnu_entity): Simplify NULL_TREE tests
        and tweak gnat_encodings tests throughout.
        (initial_value_needs_conversion): Likewise.
        (intrin_arglists_compatible_p): Likewise.
        * gcc-interface/misc.c (gnat_print_type): Likewise.
        (gnat_get_debug_type): Likewise.
        (gnat_get_fixed_point_type_info): Likewise.
        (gnat_get_array_descr_info): Likewise.
        (get_array_bit_stride): Likewise.
        (gnat_get_type_bias): Fix formatting.
        (enumerate_modes): Likewise.
        * gcc-interface/trans.c (gnat_to_gnu): Likewise.
        (add_decl_expr): Simplify NULL_TREE test.
        (end_stmt_group): Likewise.
        (build_binary_op_trapv): Fix formatting.
        (get_exception_label): Use switch statement.
        (init_code_table): Move around.
        * gcc-interface/utils.c (global_bindings_p): Simplify NULL_TREE test.
        (gnat_poplevel): Likewise.
        (gnat_set_type_context): Likewise.
        (defer_or_set_type_context): Fix formatting.
        (gnat_pushdecl): Simplify NULL_TREE test.
        (maybe_pad_type): Likewise.
        (add_parallel_type): Likewise.
        (create_range_type): Likewise.
        (process_deferred_decl_context): Likewise.
        (convert): Likewise.
        (def_builtin_1): Likewise.
        * gcc-interface/utils2.c (find_common_type): Likewise.
        (build_binary_op): Likewise.
        (gnat_rewrite_reference): Likewise.
        (get_inner_constant_reference): Likewise.

2016-01-18  Eric Botcazou  <ebotcazou@adacore.com>

        PR ada/69219
        * gcc-interface/trans.c (check_inlining_for_nested_subprog): Consider
        the parent function instead of the current function in order to issue
        the warning or the error.  Add guard for ignored functions.

2016-01-17  Jakub Jelinek  <jakub@redhat.com>

        * adaint.c (__gnat_killprocesstree): Avoid -Wparentheses warning.

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

        * adaint.c (__gnat_locate_exec_on_path): Use const char * instead
        of char * for path_val to avoid warnings.

2016-01-06  Pierre-Marie de Rodat  <derodat@adacore.com>

        * gcc-interface/utils.c: Bump copyright year.
        (rest_of_record_type_compilation): Add XVE/XVU parallel types to
        the current lexical scope.

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

        * gnat_ugn.texi: Bump @copying's copyright year.
        * gnat_rm.texi: Likewise.

2016-01-02  Eric Botcazou  <ebotcazou@adacore.com>

        * gnatvsn.ads: Bump copyright year.

\f
Copyright (C) 2016 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.