Mercurial > hg > CbC > CbC_gcc
diff gcc/ada/cstand.adb @ 111:04ced10e8804
gcc 7
| author | kono |
|---|---|
| date | Fri, 27 Oct 2017 22:46:09 +0900 |
| parents | |
| children | 84e7813d76e9 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/gcc/ada/cstand.adb Fri Oct 27 22:46:09 2017 +0900 @@ -0,0 +1,2166 @@ +------------------------------------------------------------------------------ +-- -- +-- GNAT COMPILER COMPONENTS -- +-- -- +-- C S T A N D -- +-- -- +-- B o d y -- +-- -- +-- Copyright (C) 1992-2017, Free Software Foundation, Inc. -- +-- -- +-- GNAT is free software; you can redistribute it and/or modify it under -- +-- terms of the GNU General Public License as published by the Free Soft- -- +-- ware Foundation; either version 3, or (at your option) any later ver- -- +-- sion. GNAT is distributed in the hope that it will be useful, but WITH- -- +-- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY -- +-- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License -- +-- for more details. You should have received a copy of the GNU General -- +-- Public License distributed with GNAT; see file COPYING3. If not, go to -- +-- http://www.gnu.org/licenses for a complete copy of the license. -- +-- -- +-- GNAT was originally developed by the GNAT team at New York University. -- +-- Extensive contributions were provided by Ada Core Technologies Inc. -- +-- -- +------------------------------------------------------------------------------ + +with Atree; use Atree; +with Csets; use Csets; +with Debug; use Debug; +with Einfo; use Einfo; +with Elists; use Elists; +with Layout; use Layout; +with Namet; use Namet; +with Nlists; use Nlists; +with Nmake; use Nmake; +with Opt; use Opt; +with Output; use Output; +with Set_Targ; use Set_Targ; +with Targparm; use Targparm; +with Tbuild; use Tbuild; +with Ttypes; use Ttypes; +with Sem_Mech; use Sem_Mech; +with Sem_Util; use Sem_Util; +with Sinfo; use Sinfo; +with Snames; use Snames; +with Stand; use Stand; +with Uintp; use Uintp; +with Urealp; use Urealp; + +package body CStand is + + Stloc : constant Source_Ptr := Standard_Location; + Staloc : constant Source_Ptr := Standard_ASCII_Location; + -- Standard abbreviations used throughout this package + + Back_End_Float_Types : Elist_Id := No_Elist; + -- List used for any floating point supported by the back end. This needs + -- to be at the library level, because the call back procedures retrieving + -- this information are at that level. + + ----------------------- + -- Local Subprograms -- + ----------------------- + + procedure Build_Float_Type + (E : Entity_Id; + Digs : Int; + Rep : Float_Rep_Kind; + Siz : Int; + Align : Int); + -- Procedure to build standard predefined float base type. The first + -- parameter is the entity for the type. The second parameter is the + -- digits value. The third parameter indicates the representation to + -- be used for the type. The fourth parameter is the size in bits. + -- The fifth parameter is the alignment in storage units. Each type + -- is added to the list of predefined floating point types. + -- + -- Note that both RM_Size and Esize are set to the specified size, i.e. + -- we do not set the RM_Size to the precision passed by the back end. + -- This is consistent with the semantics of 'Size specified in the RM + -- because we cannot pack components of the type tighter than this size. + + procedure Build_Signed_Integer_Type (E : Entity_Id; Siz : Nat); + -- Procedure to build standard predefined signed integer subtype. The + -- first parameter is the entity for the subtype. The second parameter + -- is the size in bits. The corresponding base type is not built by + -- this routine but instead must be built by the caller where needed. + + procedure Build_Unsigned_Integer_Type + (Uns : Entity_Id; + Siz : Nat; + Nam : String); + -- Procedure to build standard predefined unsigned integer subtype. These + -- subtypes are not user visible, but they are used internally. The first + -- parameter is the entity for the subtype. The second parameter is the + -- size in bits. The third parameter is an identifying name. + + procedure Copy_Float_Type (To : Entity_Id; From : Entity_Id); + -- Build a floating point type, copying representation details from From. + -- This is used to create predefined floating point types based on + -- available types in the back end. + + procedure Create_Operators; + -- Make entries for each of the predefined operators in Standard + + procedure Create_Unconstrained_Base_Type + (E : Entity_Id; + K : Entity_Kind); + -- The predefined signed integer types are constrained subtypes which + -- must have a corresponding unconstrained base type. This type is almost + -- useless. The only place it has semantics is Subtypes_Statically_Match. + -- Consequently, we arrange for it to be identical apart from the setting + -- of the constrained bit. This routine takes an entity E for the Type, + -- copies it to estabish the base type, then resets the Ekind of the + -- original entity to K (the Ekind for the subtype). The Etype field of + -- E is set by the call (to point to the created base type entity), and + -- also the Is_Constrained flag of E is set. + -- + -- To understand the exact requirement for this, see RM 3.5.4(11) which + -- makes it clear that Integer, for example, is constrained, with the + -- constraint bounds matching the bounds of the (unconstrained) base + -- type. The point is that Integer and Integer'Base have identical + -- bounds, but do not statically match, since a subtype with constraints + -- never matches a subtype with no constraints. + + function Find_Back_End_Float_Type (Name : String) return Entity_Id; + -- Return the first float type in Back_End_Float_Types with the given name. + -- Names of entities in back end types, are either type names of C + -- predefined types (all lower case), or mode names (upper case). + -- These are not generally valid identifier names. + + function Identifier_For (S : Standard_Entity_Type) return Node_Id; + -- Returns an identifier node with the same name as the defining + -- identifier corresponding to the given Standard_Entity_Type value + + procedure Make_Component + (Rec : Entity_Id; + Typ : Entity_Id; + Nam : String); + -- Build a record component with the given type and name, and append to + -- the list of components of Rec. + + function Make_Formal + (Typ : Entity_Id; + Formal_Name : String) return Entity_Id; + -- Construct entity for subprogram formal with given name and type + + function Make_Integer (V : Uint) return Node_Id; + -- Builds integer literal with given value + + procedure Make_Name (Id : Entity_Id; Nam : String); + -- Make an entry in the names table for Nam, and set as Chars field of Id + + function New_Operator (Op : Name_Id; Typ : Entity_Id) return Entity_Id; + -- Build entity for standard operator with given name and type + + function New_Standard_Entity + (New_Node_Kind : Node_Kind := N_Defining_Identifier) return Entity_Id; + -- Builds a new entity for Standard + + function New_Standard_Entity (S : String) return Entity_Id; + -- Builds a new entity for Standard with Nkind = N_Defining_Identifier, + -- and Chars of this defining identifier set to the given string S. + + procedure Print_Standard; + -- Print representation of package Standard if switch set + + procedure Register_Float_Type + (Name : String; + Digs : Positive; + Float_Rep : Float_Rep_Kind; + Precision : Positive; + Size : Positive; + Alignment : Natural); + -- Registers a single back end floating-point type (from FPT_Mode_Table in + -- Set_Targ). This will create a predefined floating-point base type for + -- one of the floating point types reported by the back end, and add it + -- to the list of predefined float types. Name is the name of the type + -- as a normal format (non-null-terminated) string. Digs is the number of + -- digits, which is always non-zero, since non-floating-point types were + -- filtered out earlier. Float_Rep indicates the kind of floating-point + -- type, and Precision, Size and Alignment are the precision, size and + -- alignment in bits. + + procedure Set_Integer_Bounds + (Id : Entity_Id; + Typ : Entity_Id; + Lb : Uint; + Hb : Uint); + -- Procedure to set bounds for integer type or subtype. Id is the entity + -- whose bounds and type are to be set. The Typ parameter is the Etype + -- value for the entity (which will be the same as Id for all predefined + -- integer base types. The third and fourth parameters are the bounds. + + ---------------------- + -- Build_Float_Type -- + ---------------------- + + procedure Build_Float_Type + (E : Entity_Id; + Digs : Int; + Rep : Float_Rep_Kind; + Siz : Int; + Align : Int) + is + begin + Set_Type_Definition (Parent (E), + Make_Floating_Point_Definition (Stloc, + Digits_Expression => Make_Integer (UI_From_Int (Digs)))); + + Set_Ekind (E, E_Floating_Point_Type); + Set_Etype (E, E); + Init_Digits_Value (E, Digs); + Set_Float_Rep (E, Rep); + Init_Size (E, Siz); + Set_Elem_Alignment (E, Align); + Set_Float_Bounds (E); + Set_Is_Frozen (E); + Set_Is_Public (E); + Set_Size_Known_At_Compile_Time (E); + end Build_Float_Type; + + ------------------------------ + -- Find_Back_End_Float_Type -- + ------------------------------ + + function Find_Back_End_Float_Type (Name : String) return Entity_Id is + N : Elmt_Id; + + begin + N := First_Elmt (Back_End_Float_Types); + while Present (N) and then Get_Name_String (Chars (Node (N))) /= Name + loop + Next_Elmt (N); + end loop; + + return Node (N); + end Find_Back_End_Float_Type; + + ------------------------------- + -- Build_Signed_Integer_Type -- + ------------------------------- + + procedure Build_Signed_Integer_Type (E : Entity_Id; Siz : Nat) is + U2Siz1 : constant Uint := 2 ** (Siz - 1); + Lbound : constant Uint := -U2Siz1; + Ubound : constant Uint := U2Siz1 - 1; + + begin + Set_Type_Definition (Parent (E), + Make_Signed_Integer_Type_Definition (Stloc, + Low_Bound => Make_Integer (Lbound), + High_Bound => Make_Integer (Ubound))); + + Set_Ekind (E, E_Signed_Integer_Type); + Set_Etype (E, E); + Init_Size (E, Siz); + Set_Elem_Alignment (E); + Set_Integer_Bounds (E, E, Lbound, Ubound); + Set_Is_Frozen (E); + Set_Is_Public (E); + Set_Is_Known_Valid (E); + Set_Size_Known_At_Compile_Time (E); + end Build_Signed_Integer_Type; + + --------------------------------- + -- Build_Unsigned_Integer_Type -- + --------------------------------- + + procedure Build_Unsigned_Integer_Type + (Uns : Entity_Id; + Siz : Nat; + Nam : String) + is + Decl : Node_Id; + R_Node : Node_Id; + + begin + Decl := New_Node (N_Full_Type_Declaration, Stloc); + Set_Defining_Identifier (Decl, Uns); + Make_Name (Uns, Nam); + + Set_Ekind (Uns, E_Modular_Integer_Type); + Set_Scope (Uns, Standard_Standard); + Set_Etype (Uns, Uns); + Init_Size (Uns, Siz); + Set_Elem_Alignment (Uns); + Set_Modulus (Uns, Uint_2 ** Siz); + Set_Is_Unsigned_Type (Uns); + Set_Size_Known_At_Compile_Time (Uns); + Set_Is_Known_Valid (Uns, True); + + R_Node := New_Node (N_Range, Stloc); + Set_Low_Bound (R_Node, Make_Integer (Uint_0)); + Set_High_Bound (R_Node, Make_Integer (Modulus (Uns) - 1)); + Set_Etype (Low_Bound (R_Node), Uns); + Set_Etype (High_Bound (R_Node), Uns); + Set_Scalar_Range (Uns, R_Node); + end Build_Unsigned_Integer_Type; + + --------------------- + -- Copy_Float_Type -- + --------------------- + + procedure Copy_Float_Type (To : Entity_Id; From : Entity_Id) is + begin + Build_Float_Type + (To, UI_To_Int (Digits_Value (From)), Float_Rep (From), + UI_To_Int (Esize (From)), UI_To_Int (Alignment (From))); + end Copy_Float_Type; + + ---------------------- + -- Create_Operators -- + ---------------------- + + -- Each operator has an abbreviated signature. The formals have the names + -- LEFT and RIGHT. Their types are not actually used for resolution. + + procedure Create_Operators is + Op_Node : Entity_Id; + + -- The following tables define the binary and unary operators and their + -- corresponding result type. + + Binary_Ops : constant array (S_Binary_Ops) of Name_Id := + + -- There is one entry here for each binary operator, except for the + -- case of concatenation, where there are three entries, one for a + -- String result, one for Wide_String, and one for Wide_Wide_String. + + (Name_Op_Add, + Name_Op_And, + Name_Op_Concat, + Name_Op_Concat, + Name_Op_Concat, + Name_Op_Divide, + Name_Op_Eq, + Name_Op_Expon, + Name_Op_Ge, + Name_Op_Gt, + Name_Op_Le, + Name_Op_Lt, + Name_Op_Mod, + Name_Op_Multiply, + Name_Op_Ne, + Name_Op_Or, + Name_Op_Rem, + Name_Op_Subtract, + Name_Op_Xor); + + Bin_Op_Types : constant array (S_Binary_Ops) of Entity_Id := + + -- This table has the corresponding result types. The entries are + -- ordered so they correspond to the Binary_Ops array above. + + (Universal_Integer, -- Add + Standard_Boolean, -- And + Standard_String, -- Concat (String) + Standard_Wide_String, -- Concat (Wide_String) + Standard_Wide_Wide_String, -- Concat (Wide_Wide_String) + Universal_Integer, -- Divide + Standard_Boolean, -- Eq + Universal_Integer, -- Expon + Standard_Boolean, -- Ge + Standard_Boolean, -- Gt + Standard_Boolean, -- Le + Standard_Boolean, -- Lt + Universal_Integer, -- Mod + Universal_Integer, -- Multiply + Standard_Boolean, -- Ne + Standard_Boolean, -- Or + Universal_Integer, -- Rem + Universal_Integer, -- Subtract + Standard_Boolean); -- Xor + + Unary_Ops : constant array (S_Unary_Ops) of Name_Id := + + -- There is one entry here for each unary operator + + (Name_Op_Abs, + Name_Op_Subtract, + Name_Op_Not, + Name_Op_Add); + + Unary_Op_Types : constant array (S_Unary_Ops) of Entity_Id := + + -- This table has the corresponding result types. The entries are + -- ordered so they correspond to the Unary_Ops array above. + + (Universal_Integer, -- Abs + Universal_Integer, -- Subtract + Standard_Boolean, -- Not + Universal_Integer); -- Add + + begin + for J in S_Binary_Ops loop + Op_Node := New_Operator (Binary_Ops (J), Bin_Op_Types (J)); + SE (J) := Op_Node; + Append_Entity (Make_Formal (Any_Type, "LEFT"), Op_Node); + Append_Entity (Make_Formal (Any_Type, "RIGHT"), Op_Node); + end loop; + + for J in S_Unary_Ops loop + Op_Node := New_Operator (Unary_Ops (J), Unary_Op_Types (J)); + SE (J) := Op_Node; + Append_Entity (Make_Formal (Any_Type, "RIGHT"), Op_Node); + end loop; + + -- For concatenation, we create a separate operator for each + -- array type. This simplifies the resolution of the component- + -- component concatenation operation. In Standard, we set the types + -- of the formals for string, wide [wide]_string, concatenations. + + Set_Etype (First_Entity (Standard_Op_Concat), Standard_String); + Set_Etype (Last_Entity (Standard_Op_Concat), Standard_String); + + Set_Etype (First_Entity (Standard_Op_Concatw), Standard_Wide_String); + Set_Etype (Last_Entity (Standard_Op_Concatw), Standard_Wide_String); + + Set_Etype (First_Entity (Standard_Op_Concatww), + Standard_Wide_Wide_String); + + Set_Etype (Last_Entity (Standard_Op_Concatww), + Standard_Wide_Wide_String); + end Create_Operators; + + --------------------- + -- Create_Standard -- + --------------------- + + -- The tree for the package Standard is prefixed to all compilations. + -- Several entities required by semantic analysis are denoted by global + -- variables that are initialized to point to the corresponding occurrences + -- in Standard. The visible entities of Standard are created here. Special + -- entities maybe created here as well or may be created from the semantics + -- module. By not adding them to the Decls list of Standard they will not + -- be visible to Ada programs. + + procedure Create_Standard is + Decl_S : constant List_Id := New_List; + -- List of declarations in Standard + + Decl_A : constant List_Id := New_List; + -- List of declarations in ASCII + + Decl : Node_Id; + Pspec : Node_Id; + Tdef_Node : Node_Id; + Ident_Node : Node_Id; + Ccode : Char_Code; + E_Id : Entity_Id; + R_Node : Node_Id; + B_Node : Node_Id; + + procedure Build_Exception (S : Standard_Entity_Type); + -- Procedure to declare given entity as an exception + + procedure Create_Back_End_Float_Types; + -- Initialize the Back_End_Float_Types list by having the back end + -- enumerate all available types and building type entities for them. + + procedure Create_Float_Types; + -- Creates entities for all predefined floating point types, and + -- adds these to the Predefined_Float_Types list in package Standard. + + procedure Make_Dummy_Index (E : Entity_Id); + -- Called to provide a dummy index field value for Any_Array/Any_String + + procedure Pack_String_Type (String_Type : Entity_Id); + -- Generate proper tree for pragma Pack that applies to given type, and + -- mark type as having the pragma. + + --------------------- + -- Build_Exception -- + --------------------- + + procedure Build_Exception (S : Standard_Entity_Type) is + begin + Set_Ekind (Standard_Entity (S), E_Exception); + Set_Etype (Standard_Entity (S), Standard_Exception_Type); + Set_Is_Public (Standard_Entity (S), True); + + Decl := + Make_Exception_Declaration (Stloc, + Defining_Identifier => Standard_Entity (S)); + Append (Decl, Decl_S); + end Build_Exception; + + --------------------------------- + -- Create_Back_End_Float_Types -- + --------------------------------- + + procedure Create_Back_End_Float_Types is + begin + for J in 1 .. Num_FPT_Modes loop + declare + E : FPT_Mode_Entry renames FPT_Mode_Table (J); + begin + Register_Float_Type + (E.NAME.all, E.DIGS, E.FLOAT_REP, E.PRECISION, E.SIZE, + E.ALIGNMENT); + end; + end loop; + end Create_Back_End_Float_Types; + + ------------------------ + -- Create_Float_Types -- + ------------------------ + + procedure Create_Float_Types is + begin + -- Create type definition nodes for predefined float types + + Copy_Float_Type + (Standard_Short_Float, + Find_Back_End_Float_Type (C_Type_For (S_Short_Float))); + Set_Is_Implementation_Defined (Standard_Short_Float); + + Copy_Float_Type (Standard_Float, Standard_Short_Float); + + Copy_Float_Type + (Standard_Long_Float, + Find_Back_End_Float_Type (C_Type_For (S_Long_Float))); + + Copy_Float_Type + (Standard_Long_Long_Float, + Find_Back_End_Float_Type (C_Type_For (S_Long_Long_Float))); + Set_Is_Implementation_Defined (Standard_Long_Long_Float); + + Predefined_Float_Types := New_Elmt_List; + + Append_Elmt (Standard_Short_Float, Predefined_Float_Types); + Append_Elmt (Standard_Float, Predefined_Float_Types); + Append_Elmt (Standard_Long_Float, Predefined_Float_Types); + Append_Elmt (Standard_Long_Long_Float, Predefined_Float_Types); + + -- Any other back end types are appended at the end of the list of + -- predefined float types, and will only be selected if the none of + -- the types in Standard is suitable, or if a specific named type is + -- requested through a pragma Import. + + while not Is_Empty_Elmt_List (Back_End_Float_Types) loop + declare + E : constant Elmt_Id := First_Elmt (Back_End_Float_Types); + begin + Append_Elmt (Node (E), To => Predefined_Float_Types); + Remove_Elmt (Back_End_Float_Types, E); + end; + end loop; + end Create_Float_Types; + + ---------------------- + -- Make_Dummy_Index -- + ---------------------- + + procedure Make_Dummy_Index (E : Entity_Id) is + Index : Node_Id; + Dummy : List_Id; + + begin + Index := + Make_Range (Sloc (E), + Low_Bound => Make_Integer (Uint_0), + High_Bound => Make_Integer (Uint_2 ** Standard_Integer_Size)); + Set_Etype (Index, Standard_Integer); + Set_First_Index (E, Index); + + -- Make sure Index is a list as required, so Next_Index is Empty + + Dummy := New_List (Index); + end Make_Dummy_Index; + + ---------------------- + -- Pack_String_Type -- + ---------------------- + + procedure Pack_String_Type (String_Type : Entity_Id) is + Prag : constant Node_Id := + Make_Pragma (Stloc, + Chars => Name_Pack, + Pragma_Argument_Associations => + New_List ( + Make_Pragma_Argument_Association (Stloc, + Expression => New_Occurrence_Of (String_Type, Stloc)))); + begin + Append (Prag, Decl_S); + Record_Rep_Item (String_Type, Prag); + Set_Has_Pragma_Pack (String_Type, True); + end Pack_String_Type; + + -- Start of processing for Create_Standard + + begin + -- First step is to create defining identifiers for each entity + + for S in Standard_Entity_Type loop + declare + S_Name : constant String := Standard_Entity_Type'Image (S); + -- Name of entity (note we skip S_ at the start) + + Ident_Node : Node_Id; + -- Defining identifier node + + begin + Ident_Node := New_Standard_Entity; + Make_Name (Ident_Node, S_Name (3 .. S_Name'Length)); + Standard_Entity (S) := Ident_Node; + end; + end loop; + + -- Create package declaration node for package Standard + + Standard_Package_Node := New_Node (N_Package_Declaration, Stloc); + + Pspec := New_Node (N_Package_Specification, Stloc); + Set_Specification (Standard_Package_Node, Pspec); + + Set_Defining_Unit_Name (Pspec, Standard_Standard); + Set_Visible_Declarations (Pspec, Decl_S); + + Set_Ekind (Standard_Standard, E_Package); + Set_Is_Pure (Standard_Standard); + Set_Is_Compilation_Unit (Standard_Standard); + + -- Create type/subtype declaration nodes for standard types + + for S in S_Types loop + + -- Subtype declaration case + + if S = S_Natural or else S = S_Positive then + Decl := New_Node (N_Subtype_Declaration, Stloc); + Set_Subtype_Indication (Decl, + New_Occurrence_Of (Standard_Integer, Stloc)); + + -- Full type declaration case + + else + Decl := New_Node (N_Full_Type_Declaration, Stloc); + end if; + + Set_Is_Frozen (Standard_Entity (S)); + Set_Is_Public (Standard_Entity (S)); + Set_Defining_Identifier (Decl, Standard_Entity (S)); + Append (Decl, Decl_S); + end loop; + + Create_Back_End_Float_Types; + + -- Create type definition node for type Boolean. The Size is set to + -- 1 as required by Ada 95 and current ARG interpretations for Ada/83. + + -- Note: Object_Size of Boolean is 8. This means that we do NOT in + -- general know that Boolean variables have valid values, so we do + -- not set the Is_Known_Valid flag. + + Tdef_Node := New_Node (N_Enumeration_Type_Definition, Stloc); + Set_Literals (Tdef_Node, New_List); + Append (Standard_False, Literals (Tdef_Node)); + Append (Standard_True, Literals (Tdef_Node)); + Set_Type_Definition (Parent (Standard_Boolean), Tdef_Node); + + Set_Ekind (Standard_Boolean, E_Enumeration_Type); + Set_First_Literal (Standard_Boolean, Standard_False); + Set_Etype (Standard_Boolean, Standard_Boolean); + Init_Esize (Standard_Boolean, Standard_Character_Size); + Init_RM_Size (Standard_Boolean, 1); + Set_Elem_Alignment (Standard_Boolean); + + Set_Is_Unsigned_Type (Standard_Boolean); + Set_Size_Known_At_Compile_Time (Standard_Boolean); + Set_Has_Pragma_Ordered (Standard_Boolean); + + Set_Ekind (Standard_True, E_Enumeration_Literal); + Set_Etype (Standard_True, Standard_Boolean); + Set_Enumeration_Pos (Standard_True, Uint_1); + Set_Enumeration_Rep (Standard_True, Uint_1); + Set_Is_Known_Valid (Standard_True, True); + + Set_Ekind (Standard_False, E_Enumeration_Literal); + Set_Etype (Standard_False, Standard_Boolean); + Set_Enumeration_Pos (Standard_False, Uint_0); + Set_Enumeration_Rep (Standard_False, Uint_0); + Set_Is_Known_Valid (Standard_False, True); + + -- For the bounds of Boolean, we create a range node corresponding to + + -- range False .. True + + -- where the occurrences of the literals must point to the + -- corresponding definition. + + R_Node := New_Node (N_Range, Stloc); + B_Node := New_Node (N_Identifier, Stloc); + Set_Chars (B_Node, Chars (Standard_False)); + Set_Entity (B_Node, Standard_False); + Set_Etype (B_Node, Standard_Boolean); + Set_Is_Static_Expression (B_Node); + Set_Low_Bound (R_Node, B_Node); + + B_Node := New_Node (N_Identifier, Stloc); + Set_Chars (B_Node, Chars (Standard_True)); + Set_Entity (B_Node, Standard_True); + Set_Etype (B_Node, Standard_Boolean); + Set_Is_Static_Expression (B_Node); + Set_High_Bound (R_Node, B_Node); + + Set_Scalar_Range (Standard_Boolean, R_Node); + Set_Etype (R_Node, Standard_Boolean); + Set_Parent (R_Node, Standard_Boolean); + + -- Record entity identifiers for boolean literals in the + -- Boolean_Literals array, for easy reference during expansion. + + Boolean_Literals := (False => Standard_False, True => Standard_True); + + -- Create type definition nodes for predefined integer types + + Build_Signed_Integer_Type + (Standard_Short_Short_Integer, Standard_Short_Short_Integer_Size); + + Build_Signed_Integer_Type + (Standard_Short_Integer, Standard_Short_Integer_Size); + Set_Is_Implementation_Defined (Standard_Short_Integer); + + Build_Signed_Integer_Type + (Standard_Integer, Standard_Integer_Size); + + Build_Signed_Integer_Type + (Standard_Long_Integer, Standard_Long_Integer_Size); + + Build_Signed_Integer_Type + (Standard_Long_Long_Integer, Standard_Long_Long_Integer_Size); + Set_Is_Implementation_Defined (Standard_Long_Long_Integer); + + Create_Unconstrained_Base_Type + (Standard_Short_Short_Integer, E_Signed_Integer_Subtype); + Set_Is_Implementation_Defined (Standard_Short_Short_Integer); + + Create_Unconstrained_Base_Type + (Standard_Short_Integer, E_Signed_Integer_Subtype); + + Create_Unconstrained_Base_Type + (Standard_Integer, E_Signed_Integer_Subtype); + + Create_Unconstrained_Base_Type + (Standard_Long_Integer, E_Signed_Integer_Subtype); + + Create_Unconstrained_Base_Type + (Standard_Long_Long_Integer, E_Signed_Integer_Subtype); + Set_Is_Implementation_Defined (Standard_Short_Short_Integer); + + Create_Float_Types; + + -- Create type definition node for type Character. Note that we do not + -- set the Literals field, since type Character is handled with special + -- routine that do not need a literal list. + + Tdef_Node := New_Node (N_Enumeration_Type_Definition, Stloc); + Set_Type_Definition (Parent (Standard_Character), Tdef_Node); + + Set_Ekind (Standard_Character, E_Enumeration_Type); + Set_Etype (Standard_Character, Standard_Character); + Init_Esize (Standard_Character, Standard_Character_Size); + Init_RM_Size (Standard_Character, 8); + Set_Elem_Alignment (Standard_Character); + + Set_Has_Pragma_Ordered (Standard_Character); + Set_Is_Unsigned_Type (Standard_Character); + Set_Is_Character_Type (Standard_Character); + Set_Is_Known_Valid (Standard_Character); + Set_Size_Known_At_Compile_Time (Standard_Character); + + -- Create the bounds for type Character + + R_Node := New_Node (N_Range, Stloc); + + -- Low bound for type Character (Standard.Nul) + + B_Node := New_Node (N_Character_Literal, Stloc); + Set_Is_Static_Expression (B_Node); + Set_Chars (B_Node, No_Name); + Set_Char_Literal_Value (B_Node, Uint_0); + Set_Entity (B_Node, Empty); + Set_Etype (B_Node, Standard_Character); + Set_Low_Bound (R_Node, B_Node); + + -- High bound for type Character + + B_Node := New_Node (N_Character_Literal, Stloc); + Set_Is_Static_Expression (B_Node); + Set_Chars (B_Node, No_Name); + Set_Char_Literal_Value (B_Node, UI_From_Int (16#FF#)); + Set_Entity (B_Node, Empty); + Set_Etype (B_Node, Standard_Character); + Set_High_Bound (R_Node, B_Node); + + Set_Scalar_Range (Standard_Character, R_Node); + Set_Etype (R_Node, Standard_Character); + Set_Parent (R_Node, Standard_Character); + + -- Create type definition for type Wide_Character. Note that we do not + -- set the Literals field, since type Wide_Character is handled with + -- special routines that do not need a literal list. + + Tdef_Node := New_Node (N_Enumeration_Type_Definition, Stloc); + Set_Type_Definition (Parent (Standard_Wide_Character), Tdef_Node); + + Set_Ekind (Standard_Wide_Character, E_Enumeration_Type); + Set_Etype (Standard_Wide_Character, Standard_Wide_Character); + Init_Size (Standard_Wide_Character, Standard_Wide_Character_Size); + + Set_Elem_Alignment (Standard_Wide_Character); + Set_Has_Pragma_Ordered (Standard_Wide_Character); + Set_Is_Unsigned_Type (Standard_Wide_Character); + Set_Is_Character_Type (Standard_Wide_Character); + Set_Is_Known_Valid (Standard_Wide_Character); + Set_Size_Known_At_Compile_Time (Standard_Wide_Character); + + -- Create the bounds for type Wide_Character + + R_Node := New_Node (N_Range, Stloc); + + -- Low bound for type Wide_Character + + B_Node := New_Node (N_Character_Literal, Stloc); + Set_Is_Static_Expression (B_Node); + Set_Chars (B_Node, No_Name); -- ??? + Set_Char_Literal_Value (B_Node, Uint_0); + Set_Entity (B_Node, Empty); + Set_Etype (B_Node, Standard_Wide_Character); + Set_Low_Bound (R_Node, B_Node); + + -- High bound for type Wide_Character + + B_Node := New_Node (N_Character_Literal, Stloc); + Set_Is_Static_Expression (B_Node); + Set_Chars (B_Node, No_Name); -- ??? + Set_Char_Literal_Value (B_Node, UI_From_Int (16#FFFF#)); + Set_Entity (B_Node, Empty); + Set_Etype (B_Node, Standard_Wide_Character); + Set_High_Bound (R_Node, B_Node); + + Set_Scalar_Range (Standard_Wide_Character, R_Node); + Set_Etype (R_Node, Standard_Wide_Character); + Set_Parent (R_Node, Standard_Wide_Character); + + -- Create type definition for type Wide_Wide_Character. Note that we + -- do not set the Literals field, since type Wide_Wide_Character is + -- handled with special routines that do not need a literal list. + + Tdef_Node := New_Node (N_Enumeration_Type_Definition, Stloc); + Set_Type_Definition (Parent (Standard_Wide_Wide_Character), Tdef_Node); + + Set_Ekind (Standard_Wide_Wide_Character, E_Enumeration_Type); + Set_Etype (Standard_Wide_Wide_Character, + Standard_Wide_Wide_Character); + Init_Size (Standard_Wide_Wide_Character, + Standard_Wide_Wide_Character_Size); + + Set_Elem_Alignment (Standard_Wide_Wide_Character); + Set_Has_Pragma_Ordered (Standard_Wide_Wide_Character); + Set_Is_Unsigned_Type (Standard_Wide_Wide_Character); + Set_Is_Character_Type (Standard_Wide_Wide_Character); + Set_Is_Known_Valid (Standard_Wide_Wide_Character); + Set_Size_Known_At_Compile_Time (Standard_Wide_Wide_Character); + Set_Is_Ada_2005_Only (Standard_Wide_Wide_Character); + + -- Create the bounds for type Wide_Wide_Character + + R_Node := New_Node (N_Range, Stloc); + + -- Low bound for type Wide_Wide_Character + + B_Node := New_Node (N_Character_Literal, Stloc); + Set_Is_Static_Expression (B_Node); + Set_Chars (B_Node, No_Name); -- ??? + Set_Char_Literal_Value (B_Node, Uint_0); + Set_Entity (B_Node, Empty); + Set_Etype (B_Node, Standard_Wide_Wide_Character); + Set_Low_Bound (R_Node, B_Node); + + -- High bound for type Wide_Wide_Character + + B_Node := New_Node (N_Character_Literal, Stloc); + Set_Is_Static_Expression (B_Node); + Set_Chars (B_Node, No_Name); -- ??? + Set_Char_Literal_Value (B_Node, UI_From_Int (16#7FFF_FFFF#)); + Set_Entity (B_Node, Empty); + Set_Etype (B_Node, Standard_Wide_Wide_Character); + Set_High_Bound (R_Node, B_Node); + + Set_Scalar_Range (Standard_Wide_Wide_Character, R_Node); + Set_Etype (R_Node, Standard_Wide_Wide_Character); + Set_Parent (R_Node, Standard_Wide_Wide_Character); + + -- Create type definition node for type String + + Tdef_Node := New_Node (N_Unconstrained_Array_Definition, Stloc); + + declare + CompDef_Node : Node_Id; + begin + CompDef_Node := New_Node (N_Component_Definition, Stloc); + Set_Aliased_Present (CompDef_Node, False); + Set_Access_Definition (CompDef_Node, Empty); + Set_Subtype_Indication (CompDef_Node, Identifier_For (S_Character)); + Set_Component_Definition (Tdef_Node, CompDef_Node); + end; + + Set_Subtype_Marks (Tdef_Node, New_List); + Append (Identifier_For (S_Positive), Subtype_Marks (Tdef_Node)); + Set_Type_Definition (Parent (Standard_String), Tdef_Node); + + Set_Ekind (Standard_String, E_Array_Type); + Set_Etype (Standard_String, Standard_String); + Set_Component_Type (Standard_String, Standard_Character); + Set_Component_Size (Standard_String, Uint_8); + Init_Size_Align (Standard_String); + Set_Alignment (Standard_String, Uint_1); + Pack_String_Type (Standard_String); + + -- On targets where a storage unit is larger than a byte (such as AAMP), + -- pragma Pack has a real effect on the representation of type String, + -- and the type must be marked as having a nonstandard representation. + + if System_Storage_Unit > Uint_8 then + Set_Has_Non_Standard_Rep (Standard_String); + Set_Has_Pragma_Pack (Standard_String); + end if; + + -- Set index type of String + + E_Id := + First (Subtype_Marks (Type_Definition (Parent (Standard_String)))); + Set_First_Index (Standard_String, E_Id); + Set_Entity (E_Id, Standard_Positive); + Set_Etype (E_Id, Standard_Positive); + + -- Create type definition node for type Wide_String + + Tdef_Node := New_Node (N_Unconstrained_Array_Definition, Stloc); + + declare + CompDef_Node : Node_Id; + begin + CompDef_Node := New_Node (N_Component_Definition, Stloc); + Set_Aliased_Present (CompDef_Node, False); + Set_Access_Definition (CompDef_Node, Empty); + Set_Subtype_Indication (CompDef_Node, + Identifier_For (S_Wide_Character)); + Set_Component_Definition (Tdef_Node, CompDef_Node); + end; + + Set_Subtype_Marks (Tdef_Node, New_List); + Append (Identifier_For (S_Positive), Subtype_Marks (Tdef_Node)); + Set_Type_Definition (Parent (Standard_Wide_String), Tdef_Node); + + Set_Ekind (Standard_Wide_String, E_Array_Type); + Set_Etype (Standard_Wide_String, Standard_Wide_String); + Set_Component_Type (Standard_Wide_String, Standard_Wide_Character); + Set_Component_Size (Standard_Wide_String, Uint_16); + Init_Size_Align (Standard_Wide_String); + Pack_String_Type (Standard_Wide_String); + + -- Set index type of Wide_String + + E_Id := + First + (Subtype_Marks (Type_Definition (Parent (Standard_Wide_String)))); + Set_First_Index (Standard_Wide_String, E_Id); + Set_Entity (E_Id, Standard_Positive); + Set_Etype (E_Id, Standard_Positive); + + -- Create type definition node for type Wide_Wide_String + + Tdef_Node := New_Node (N_Unconstrained_Array_Definition, Stloc); + + declare + CompDef_Node : Node_Id; + begin + CompDef_Node := New_Node (N_Component_Definition, Stloc); + Set_Aliased_Present (CompDef_Node, False); + Set_Access_Definition (CompDef_Node, Empty); + Set_Subtype_Indication (CompDef_Node, + Identifier_For (S_Wide_Wide_Character)); + Set_Component_Definition (Tdef_Node, CompDef_Node); + end; + + Set_Subtype_Marks (Tdef_Node, New_List); + Append (Identifier_For (S_Positive), Subtype_Marks (Tdef_Node)); + Set_Type_Definition (Parent (Standard_Wide_Wide_String), Tdef_Node); + + Set_Ekind (Standard_Wide_Wide_String, E_Array_Type); + Set_Etype (Standard_Wide_Wide_String, + Standard_Wide_Wide_String); + Set_Component_Type (Standard_Wide_Wide_String, + Standard_Wide_Wide_Character); + Set_Component_Size (Standard_Wide_Wide_String, Uint_32); + Init_Size_Align (Standard_Wide_Wide_String); + Set_Is_Ada_2005_Only (Standard_Wide_Wide_String); + Pack_String_Type (Standard_Wide_Wide_String); + + -- Set index type of Wide_Wide_String + + E_Id := + First + (Subtype_Marks + (Type_Definition (Parent (Standard_Wide_Wide_String)))); + Set_First_Index (Standard_Wide_Wide_String, E_Id); + Set_Entity (E_Id, Standard_Positive); + Set_Etype (E_Id, Standard_Positive); + + -- Setup entity for Natural + + Set_Ekind (Standard_Natural, E_Signed_Integer_Subtype); + Set_Etype (Standard_Natural, Base_Type (Standard_Integer)); + Init_Esize (Standard_Natural, Standard_Integer_Size); + Init_RM_Size (Standard_Natural, Standard_Integer_Size - 1); + Set_Elem_Alignment (Standard_Natural); + Set_Size_Known_At_Compile_Time + (Standard_Natural); + Set_Integer_Bounds (Standard_Natural, + Typ => Base_Type (Standard_Integer), + Lb => Uint_0, + Hb => Intval (High_Bound (Scalar_Range (Standard_Integer)))); + Set_Is_Constrained (Standard_Natural); + + -- Setup entity for Positive + + Set_Ekind (Standard_Positive, E_Signed_Integer_Subtype); + Set_Etype (Standard_Positive, Base_Type (Standard_Integer)); + Init_Esize (Standard_Positive, Standard_Integer_Size); + Init_RM_Size (Standard_Positive, Standard_Integer_Size - 1); + Set_Elem_Alignment (Standard_Positive); + + Set_Size_Known_At_Compile_Time (Standard_Positive); + + Set_Integer_Bounds (Standard_Positive, + Typ => Base_Type (Standard_Integer), + Lb => Uint_1, + Hb => Intval (High_Bound (Scalar_Range (Standard_Integer)))); + Set_Is_Constrained (Standard_Positive); + + -- Create declaration for package ASCII + + Decl := New_Node (N_Package_Declaration, Stloc); + Append (Decl, Decl_S); + + Pspec := New_Node (N_Package_Specification, Stloc); + Set_Specification (Decl, Pspec); + + Set_Defining_Unit_Name (Pspec, Standard_Entity (S_ASCII)); + Set_Ekind (Standard_Entity (S_ASCII), E_Package); + Set_Visible_Declarations (Pspec, Decl_A); + + -- Create control character definitions in package ASCII. Note that + -- the character literal entries created here correspond to literal + -- values that are impossible in the source, but can be represented + -- internally with no difficulties. + + Ccode := 16#00#; + + for S in S_ASCII_Names loop + Decl := New_Node (N_Object_Declaration, Staloc); + Set_Constant_Present (Decl, True); + + declare + A_Char : constant Entity_Id := Standard_Entity (S); + Expr_Decl : Node_Id; + + begin + Set_Sloc (A_Char, Staloc); + Set_Ekind (A_Char, E_Constant); + Set_Never_Set_In_Source (A_Char, True); + Set_Is_True_Constant (A_Char, True); + Set_Etype (A_Char, Standard_Character); + Set_Scope (A_Char, Standard_Entity (S_ASCII)); + Set_Is_Immediately_Visible (A_Char, False); + Set_Is_Public (A_Char, True); + Set_Is_Known_Valid (A_Char, True); + + Append_Entity (A_Char, Standard_Entity (S_ASCII)); + Set_Defining_Identifier (Decl, A_Char); + + Set_Object_Definition (Decl, Identifier_For (S_Character)); + Expr_Decl := New_Node (N_Character_Literal, Staloc); + Set_Expression (Decl, Expr_Decl); + + Set_Is_Static_Expression (Expr_Decl); + Set_Chars (Expr_Decl, No_Name); + Set_Etype (Expr_Decl, Standard_Character); + Set_Char_Literal_Value (Expr_Decl, UI_From_Int (Int (Ccode))); + end; + + Append (Decl, Decl_A); + + -- Increment character code, dealing with non-contiguities + + Ccode := Ccode + 1; + + if Ccode = 16#20# then + Ccode := 16#21#; + elsif Ccode = 16#27# then + Ccode := 16#3A#; + elsif Ccode = 16#3C# then + Ccode := 16#3F#; + elsif Ccode = 16#41# then + Ccode := 16#5B#; + end if; + end loop; + + -- Create semantic phase entities + + Standard_Void_Type := New_Standard_Entity; + Set_Ekind (Standard_Void_Type, E_Void); + Set_Etype (Standard_Void_Type, Standard_Void_Type); + Set_Scope (Standard_Void_Type, Standard_Standard); + Make_Name (Standard_Void_Type, "_void_type"); + + -- The type field of packages is set to void + + Set_Etype (Standard_Standard, Standard_Void_Type); + Set_Etype (Standard_ASCII, Standard_Void_Type); + + -- Standard_A_String is actually used in generated code, so it has a + -- type name that is reasonable, but does not overlap any Ada name. + + Standard_A_String := New_Standard_Entity; + Set_Ekind (Standard_A_String, E_Access_Type); + Set_Scope (Standard_A_String, Standard_Standard); + Set_Etype (Standard_A_String, Standard_A_String); + + if Debug_Flag_6 then + Init_Size (Standard_A_String, System_Address_Size); + else + Init_Size (Standard_A_String, System_Address_Size * 2); + end if; + + Init_Alignment (Standard_A_String); + + Set_Directly_Designated_Type + (Standard_A_String, Standard_String); + Make_Name (Standard_A_String, "access_string"); + + Standard_A_Char := New_Standard_Entity; + Set_Ekind (Standard_A_Char, E_Access_Type); + Set_Scope (Standard_A_Char, Standard_Standard); + Set_Etype (Standard_A_Char, Standard_A_String); + Init_Size (Standard_A_Char, System_Address_Size); + Set_Elem_Alignment (Standard_A_Char); + + Set_Directly_Designated_Type (Standard_A_Char, Standard_Character); + Make_Name (Standard_A_Char, "access_character"); + + -- Standard_Debug_Renaming_Type is used for the special objects created + -- to encode the names occurring in renaming declarations for use by the + -- debugger (see exp_dbug.adb). The type is a zero-sized subtype of + -- Standard.Integer. + + Standard_Debug_Renaming_Type := New_Standard_Entity; + + Set_Ekind (Standard_Debug_Renaming_Type, E_Signed_Integer_Subtype); + Set_Scope (Standard_Debug_Renaming_Type, Standard_Standard); + Set_Etype (Standard_Debug_Renaming_Type, Base_Type (Standard_Integer)); + Init_Esize (Standard_Debug_Renaming_Type, 0); + Init_RM_Size (Standard_Debug_Renaming_Type, 0); + Set_Size_Known_At_Compile_Time (Standard_Debug_Renaming_Type); + Set_Integer_Bounds (Standard_Debug_Renaming_Type, + Typ => Base_Type (Standard_Debug_Renaming_Type), + Lb => Uint_1, + Hb => Uint_0); + Set_Is_Constrained (Standard_Debug_Renaming_Type); + Set_Has_Size_Clause (Standard_Debug_Renaming_Type); + + Make_Name (Standard_Debug_Renaming_Type, "_renaming_type"); + + -- Note on type names. The type names for the following special types + -- are constructed so that they will look reasonable should they ever + -- appear in error messages etc, although in practice the use of the + -- special insertion character } for types results in special handling + -- of these type names in any case. The blanks in these names would + -- trouble in Gigi, but that's OK here, since none of these types + -- should ever get through to Gigi. Attributes of these types are + -- filled out to minimize problems with cascaded errors (for example, + -- Any_Integer is given reasonable and consistent type and size values) + + Any_Type := New_Standard_Entity ("any type"); + Decl := New_Node (N_Full_Type_Declaration, Stloc); + Set_Defining_Identifier (Decl, Any_Type); + Set_Scope (Any_Type, Standard_Standard); + Build_Signed_Integer_Type (Any_Type, Standard_Integer_Size); + + Any_Id := New_Standard_Entity ("any id"); + Set_Ekind (Any_Id, E_Variable); + Set_Scope (Any_Id, Standard_Standard); + Set_Etype (Any_Id, Any_Type); + Init_Esize (Any_Id); + Init_Alignment (Any_Id); + + Any_Access := New_Standard_Entity ("an access type"); + Set_Ekind (Any_Access, E_Access_Type); + Set_Scope (Any_Access, Standard_Standard); + Set_Etype (Any_Access, Any_Access); + Init_Size (Any_Access, System_Address_Size); + Set_Elem_Alignment (Any_Access); + Set_Directly_Designated_Type + (Any_Access, Any_Type); + + Any_Character := New_Standard_Entity ("a character type"); + Set_Ekind (Any_Character, E_Enumeration_Type); + Set_Scope (Any_Character, Standard_Standard); + Set_Etype (Any_Character, Any_Character); + Set_Is_Unsigned_Type (Any_Character); + Set_Is_Character_Type (Any_Character); + Init_Esize (Any_Character, Standard_Character_Size); + Init_RM_Size (Any_Character, 8); + Set_Elem_Alignment (Any_Character); + Set_Scalar_Range (Any_Character, Scalar_Range (Standard_Character)); + + Any_Array := New_Standard_Entity ("an array type"); + Set_Ekind (Any_Array, E_Array_Type); + Set_Scope (Any_Array, Standard_Standard); + Set_Etype (Any_Array, Any_Array); + Set_Component_Type (Any_Array, Any_Character); + Init_Size_Align (Any_Array); + Make_Dummy_Index (Any_Array); + + Any_Boolean := New_Standard_Entity ("a boolean type"); + Set_Ekind (Any_Boolean, E_Enumeration_Type); + Set_Scope (Any_Boolean, Standard_Standard); + Set_Etype (Any_Boolean, Standard_Boolean); + Init_Esize (Any_Boolean, Standard_Character_Size); + Init_RM_Size (Any_Boolean, 1); + Set_Elem_Alignment (Any_Boolean); + Set_Is_Unsigned_Type (Any_Boolean); + Set_Scalar_Range (Any_Boolean, Scalar_Range (Standard_Boolean)); + + Any_Composite := New_Standard_Entity ("a composite type"); + Set_Ekind (Any_Composite, E_Array_Type); + Set_Scope (Any_Composite, Standard_Standard); + Set_Etype (Any_Composite, Any_Composite); + Set_Component_Size (Any_Composite, Uint_0); + Set_Component_Type (Any_Composite, Standard_Integer); + Init_Size_Align (Any_Composite); + + Any_Discrete := New_Standard_Entity ("a discrete type"); + Set_Ekind (Any_Discrete, E_Signed_Integer_Type); + Set_Scope (Any_Discrete, Standard_Standard); + Set_Etype (Any_Discrete, Any_Discrete); + Init_Size (Any_Discrete, Standard_Integer_Size); + Set_Elem_Alignment (Any_Discrete); + + Any_Fixed := New_Standard_Entity ("a fixed-point type"); + Set_Ekind (Any_Fixed, E_Ordinary_Fixed_Point_Type); + Set_Scope (Any_Fixed, Standard_Standard); + Set_Etype (Any_Fixed, Any_Fixed); + Init_Size (Any_Fixed, Standard_Integer_Size); + Set_Elem_Alignment (Any_Fixed); + + Any_Integer := New_Standard_Entity ("an integer type"); + Set_Ekind (Any_Integer, E_Signed_Integer_Type); + Set_Scope (Any_Integer, Standard_Standard); + Set_Etype (Any_Integer, Standard_Long_Long_Integer); + Init_Size (Any_Integer, Standard_Long_Long_Integer_Size); + Set_Elem_Alignment (Any_Integer); + + Set_Integer_Bounds + (Any_Integer, + Typ => Base_Type (Standard_Integer), + Lb => Uint_0, + Hb => Intval (High_Bound (Scalar_Range (Standard_Integer)))); + + Any_Modular := New_Standard_Entity ("a modular type"); + Set_Ekind (Any_Modular, E_Modular_Integer_Type); + Set_Scope (Any_Modular, Standard_Standard); + Set_Etype (Any_Modular, Standard_Long_Long_Integer); + Init_Size (Any_Modular, Standard_Long_Long_Integer_Size); + Set_Elem_Alignment (Any_Modular); + Set_Is_Unsigned_Type (Any_Modular); + + Any_Numeric := New_Standard_Entity ("a numeric type"); + Set_Ekind (Any_Numeric, E_Signed_Integer_Type); + Set_Scope (Any_Numeric, Standard_Standard); + Set_Etype (Any_Numeric, Standard_Long_Long_Integer); + Init_Size (Any_Numeric, Standard_Long_Long_Integer_Size); + Set_Elem_Alignment (Any_Numeric); + + Any_Real := New_Standard_Entity ("a real type"); + Set_Ekind (Any_Real, E_Floating_Point_Type); + Set_Scope (Any_Real, Standard_Standard); + Set_Etype (Any_Real, Standard_Long_Long_Float); + Init_Size (Any_Real, + UI_To_Int (Esize (Standard_Long_Long_Float))); + Set_Elem_Alignment (Any_Real); + + Any_Scalar := New_Standard_Entity ("a scalar type"); + Set_Ekind (Any_Scalar, E_Signed_Integer_Type); + Set_Scope (Any_Scalar, Standard_Standard); + Set_Etype (Any_Scalar, Any_Scalar); + Init_Size (Any_Scalar, Standard_Integer_Size); + Set_Elem_Alignment (Any_Scalar); + + Any_String := New_Standard_Entity ("a string type"); + Set_Ekind (Any_String, E_Array_Type); + Set_Scope (Any_String, Standard_Standard); + Set_Etype (Any_String, Any_String); + Set_Component_Type (Any_String, Any_Character); + Init_Size_Align (Any_String); + Make_Dummy_Index (Any_String); + + Raise_Type := New_Standard_Entity ("raise type"); + Decl := New_Node (N_Full_Type_Declaration, Stloc); + Set_Defining_Identifier (Decl, Raise_Type); + Set_Scope (Raise_Type, Standard_Standard); + Build_Signed_Integer_Type (Raise_Type, Standard_Integer_Size); + + Standard_Integer_8 := New_Standard_Entity ("integer_8"); + Decl := New_Node (N_Full_Type_Declaration, Stloc); + Set_Defining_Identifier (Decl, Standard_Integer_8); + Set_Scope (Standard_Integer_8, Standard_Standard); + Build_Signed_Integer_Type (Standard_Integer_8, 8); + + Standard_Integer_16 := New_Standard_Entity ("integer_16"); + Decl := New_Node (N_Full_Type_Declaration, Stloc); + Set_Defining_Identifier (Decl, Standard_Integer_16); + Set_Scope (Standard_Integer_16, Standard_Standard); + Build_Signed_Integer_Type (Standard_Integer_16, 16); + + Standard_Integer_32 := New_Standard_Entity ("integer_32"); + Decl := New_Node (N_Full_Type_Declaration, Stloc); + Set_Defining_Identifier (Decl, Standard_Integer_32); + Set_Scope (Standard_Integer_32, Standard_Standard); + Build_Signed_Integer_Type (Standard_Integer_32, 32); + + Standard_Integer_64 := New_Standard_Entity ("integer_64"); + Decl := New_Node (N_Full_Type_Declaration, Stloc); + Set_Defining_Identifier (Decl, Standard_Integer_64); + Set_Scope (Standard_Integer_64, Standard_Standard); + Build_Signed_Integer_Type (Standard_Integer_64, 64); + + -- Standard_*_Unsigned subtypes are not user visible, but they are + -- used internally. They are unsigned types with the same length as + -- the correspondingly named signed integer types. + + Standard_Short_Short_Unsigned := New_Standard_Entity; + Build_Unsigned_Integer_Type + (Standard_Short_Short_Unsigned, + Standard_Short_Short_Integer_Size, + "short_short_unsigned"); + + Standard_Short_Unsigned := New_Standard_Entity; + Build_Unsigned_Integer_Type + (Standard_Short_Unsigned, + Standard_Short_Integer_Size, + "short_unsigned"); + + Standard_Unsigned := New_Standard_Entity; + Build_Unsigned_Integer_Type + (Standard_Unsigned, + Standard_Integer_Size, + "unsigned"); + + Standard_Long_Unsigned := New_Standard_Entity; + Build_Unsigned_Integer_Type + (Standard_Long_Unsigned, + Standard_Long_Integer_Size, + "long_unsigned"); + + Standard_Long_Long_Unsigned := New_Standard_Entity; + Build_Unsigned_Integer_Type + (Standard_Long_Long_Unsigned, + Standard_Long_Long_Integer_Size, + "long_long_unsigned"); + + -- Standard_Unsigned_64 is not user visible, but is used internally. It + -- is an unsigned type mod 2**64, 64-bits unsigned, size is 64. + + Standard_Unsigned_64 := New_Standard_Entity; + Build_Unsigned_Integer_Type (Standard_Unsigned_64, 64, "unsigned_64"); + + -- Note: universal integer and universal real are constructed as fully + -- formed signed numeric types, with parameters corresponding to the + -- longest runtime types (Long_Long_Integer and Long_Long_Float). This + -- allows Gigi to properly process references to universal types that + -- are not folded at compile time. + + Universal_Integer := New_Standard_Entity; + Decl := New_Node (N_Full_Type_Declaration, Stloc); + Set_Defining_Identifier (Decl, Universal_Integer); + Make_Name (Universal_Integer, "universal_integer"); + Set_Scope (Universal_Integer, Standard_Standard); + Build_Signed_Integer_Type + (Universal_Integer, Standard_Long_Long_Integer_Size); + + Universal_Real := New_Standard_Entity; + Decl := New_Node (N_Full_Type_Declaration, Stloc); + Set_Defining_Identifier (Decl, Universal_Real); + Make_Name (Universal_Real, "universal_real"); + Set_Scope (Universal_Real, Standard_Standard); + Copy_Float_Type (Universal_Real, Standard_Long_Long_Float); + + -- Note: universal fixed, unlike universal integer and universal real, + -- is never used at runtime, so it does not need to have bounds set. + + Universal_Fixed := New_Standard_Entity; + Decl := New_Node (N_Full_Type_Declaration, Stloc); + Set_Defining_Identifier (Decl, Universal_Fixed); + Make_Name (Universal_Fixed, "universal_fixed"); + Set_Ekind (Universal_Fixed, E_Ordinary_Fixed_Point_Type); + Set_Etype (Universal_Fixed, Universal_Fixed); + Set_Scope (Universal_Fixed, Standard_Standard); + Init_Size (Universal_Fixed, Standard_Long_Long_Integer_Size); + Set_Elem_Alignment (Universal_Fixed); + Set_Size_Known_At_Compile_Time + (Universal_Fixed); + + -- Create type declaration for Duration, using a 64-bit size. The + -- delta and size values depend on the mode set in system.ads. + + Build_Duration : declare + Dlo : Uint; + Dhi : Uint; + Delta_Val : Ureal; + + begin + -- In 32 bit mode, the size is 32 bits, and the delta and + -- small values are set to 20 milliseconds (20.0*(10.0**(-3)). + + if Duration_32_Bits_On_Target then + Dlo := Intval (Type_Low_Bound (Standard_Integer_32)); + Dhi := Intval (Type_High_Bound (Standard_Integer_32)); + Delta_Val := UR_From_Components (UI_From_Int (20), Uint_3, 10); + + -- In 64-bit mode, the size is 64-bits and the delta and + -- small values are set to nanoseconds (1.0*(10.0**(-9)). + + else + Dlo := Intval (Type_Low_Bound (Standard_Integer_64)); + Dhi := Intval (Type_High_Bound (Standard_Integer_64)); + Delta_Val := UR_From_Components (Uint_1, Uint_9, 10); + end if; + + Tdef_Node := Make_Ordinary_Fixed_Point_Definition (Stloc, + Delta_Expression => Make_Real_Literal (Stloc, Delta_Val), + Real_Range_Specification => + Make_Real_Range_Specification (Stloc, + Low_Bound => Make_Real_Literal (Stloc, + Realval => Dlo * Delta_Val), + High_Bound => Make_Real_Literal (Stloc, + Realval => Dhi * Delta_Val))); + + Set_Type_Definition (Parent (Standard_Duration), Tdef_Node); + + Set_Ekind (Standard_Duration, E_Ordinary_Fixed_Point_Type); + Set_Etype (Standard_Duration, Standard_Duration); + + if Duration_32_Bits_On_Target then + Init_Size (Standard_Duration, 32); + else + Init_Size (Standard_Duration, 64); + end if; + + Set_Elem_Alignment (Standard_Duration); + Set_Delta_Value (Standard_Duration, Delta_Val); + Set_Small_Value (Standard_Duration, Delta_Val); + Set_Scalar_Range (Standard_Duration, + Real_Range_Specification + (Type_Definition (Parent (Standard_Duration)))); + + -- Normally it does not matter that nodes in package Standard are + -- not marked as analyzed. The Scalar_Range of the fixed-point type + -- Standard_Duration is an exception, because of the special test + -- made in Freeze.Freeze_Fixed_Point_Type. + + Set_Analyzed (Scalar_Range (Standard_Duration)); + + Set_Etype (Type_High_Bound (Standard_Duration), Standard_Duration); + Set_Etype (Type_Low_Bound (Standard_Duration), Standard_Duration); + + Set_Is_Static_Expression (Type_High_Bound (Standard_Duration)); + Set_Is_Static_Expression (Type_Low_Bound (Standard_Duration)); + + Set_Corresponding_Integer_Value + (Type_High_Bound (Standard_Duration), Dhi); + + Set_Corresponding_Integer_Value + (Type_Low_Bound (Standard_Duration), Dlo); + + Set_Size_Known_At_Compile_Time (Standard_Duration); + end Build_Duration; + + -- Build standard exception type. Note that the type name here is + -- actually used in the generated code, so it must be set correctly. + -- The type Standard_Exception_Type must be consistent with the type + -- System.Standard_Library.Exception_Data, as the latter is what is + -- known by the run-time. Components of the record are documented in + -- the declaration in System.Standard_Library. + + Standard_Exception_Type := New_Standard_Entity; + Set_Ekind (Standard_Exception_Type, E_Record_Type); + Set_Etype (Standard_Exception_Type, Standard_Exception_Type); + Set_Scope (Standard_Exception_Type, Standard_Standard); + Set_Stored_Constraint + (Standard_Exception_Type, No_Elist); + Init_Size_Align (Standard_Exception_Type); + Set_Size_Known_At_Compile_Time + (Standard_Exception_Type, True); + Make_Name (Standard_Exception_Type, "exception"); + + Make_Component + (Standard_Exception_Type, Standard_Boolean, "Not_Handled_By_Others"); + Make_Component + (Standard_Exception_Type, Standard_Character, "Lang"); + Make_Component + (Standard_Exception_Type, Standard_Natural, "Name_Length"); + Make_Component + (Standard_Exception_Type, Standard_A_Char, "Full_Name"); + Make_Component + (Standard_Exception_Type, Standard_A_Char, "HTable_Ptr"); + Make_Component + (Standard_Exception_Type, Standard_A_Char, "Foreign_Data"); + Make_Component + (Standard_Exception_Type, Standard_A_Char, "Raise_Hook"); + + -- Build tree for record declaration, for use by the back-end + + declare + Comp_List : List_Id; + Comp : Entity_Id; + + begin + Comp := First_Entity (Standard_Exception_Type); + Comp_List := New_List; + while Present (Comp) loop + Append ( + Make_Component_Declaration (Stloc, + Defining_Identifier => Comp, + Component_Definition => + Make_Component_Definition (Stloc, + Aliased_Present => False, + Subtype_Indication => New_Occurrence_Of (Etype (Comp), + Stloc))), + Comp_List); + + Next_Entity (Comp); + end loop; + + Decl := Make_Full_Type_Declaration (Stloc, + Defining_Identifier => Standard_Exception_Type, + Type_Definition => + Make_Record_Definition (Stloc, + End_Label => Empty, + Component_List => + Make_Component_List (Stloc, + Component_Items => Comp_List))); + end; + + Append (Decl, Decl_S); + + Layout_Type (Standard_Exception_Type); + + -- Create declarations of standard exceptions + + Build_Exception (S_Constraint_Error); + Build_Exception (S_Program_Error); + Build_Exception (S_Storage_Error); + Build_Exception (S_Tasking_Error); + + -- Numeric_Error is a normal exception in Ada 83, but in Ada 95 + -- it is a renaming of Constraint_Error. Is this test too early??? + + if Ada_Version = Ada_83 then + Build_Exception (S_Numeric_Error); + + else + Decl := New_Node (N_Exception_Renaming_Declaration, Stloc); + E_Id := Standard_Entity (S_Numeric_Error); + + Set_Ekind (E_Id, E_Exception); + Set_Etype (E_Id, Standard_Exception_Type); + Set_Is_Public (E_Id); + Set_Renamed_Entity (E_Id, Standard_Entity (S_Constraint_Error)); + + Set_Defining_Identifier (Decl, E_Id); + Append (Decl, Decl_S); + + Ident_Node := New_Node (N_Identifier, Stloc); + Set_Chars (Ident_Node, Chars (Standard_Entity (S_Constraint_Error))); + Set_Entity (Ident_Node, Standard_Entity (S_Constraint_Error)); + Set_Name (Decl, Ident_Node); + end if; + + -- Abort_Signal is an entity that does not get made visible + + Abort_Signal := New_Standard_Entity; + Set_Chars (Abort_Signal, Name_uAbort_Signal); + Set_Ekind (Abort_Signal, E_Exception); + Set_Etype (Abort_Signal, Standard_Exception_Type); + Set_Scope (Abort_Signal, Standard_Standard); + Set_Is_Public (Abort_Signal, True); + Decl := + Make_Exception_Declaration (Stloc, + Defining_Identifier => Abort_Signal); + + -- Create defining identifiers for shift operator entities. Note + -- that these entities are used only for marking shift operators + -- generated internally, and hence need no structure, just a name + -- and a unique identity. + + Standard_Op_Rotate_Left := New_Standard_Entity; + Set_Chars (Standard_Op_Rotate_Left, Name_Rotate_Left); + Set_Ekind (Standard_Op_Rotate_Left, E_Operator); + + Standard_Op_Rotate_Right := New_Standard_Entity; + Set_Chars (Standard_Op_Rotate_Right, Name_Rotate_Right); + Set_Ekind (Standard_Op_Rotate_Right, E_Operator); + + Standard_Op_Shift_Left := New_Standard_Entity; + Set_Chars (Standard_Op_Shift_Left, Name_Shift_Left); + Set_Ekind (Standard_Op_Shift_Left, E_Operator); + + Standard_Op_Shift_Right := New_Standard_Entity; + Set_Chars (Standard_Op_Shift_Right, Name_Shift_Right); + Set_Ekind (Standard_Op_Shift_Right, E_Operator); + + Standard_Op_Shift_Right_Arithmetic := New_Standard_Entity; + Set_Chars (Standard_Op_Shift_Right_Arithmetic, + Name_Shift_Right_Arithmetic); + Set_Ekind (Standard_Op_Shift_Right_Arithmetic, + E_Operator); + + -- Create standard operator declarations + + Create_Operators; + + -- Initialize visibility table with entities in Standard + + for E in Standard_Entity_Type loop + if Ekind (Standard_Entity (E)) /= E_Operator then + Set_Name_Entity_Id + (Chars (Standard_Entity (E)), Standard_Entity (E)); + Set_Homonym (Standard_Entity (E), Empty); + end if; + + if E not in S_ASCII_Names then + Set_Scope (Standard_Entity (E), Standard_Standard); + Set_Is_Immediately_Visible (Standard_Entity (E)); + end if; + end loop; + + -- The predefined package Standard itself does not have a scope; + -- it is the only entity in the system not to have one, and this + -- is what identifies the package to Gigi. + + Set_Scope (Standard_Standard, Empty); + + -- Set global variables indicating last Id values and version + + Last_Standard_Node_Id := Last_Node_Id; + Last_Standard_List_Id := Last_List_Id; + + -- The Error node has an Etype of Any_Type to help error recovery + + Set_Etype (Error, Any_Type); + + -- Print representation of standard if switch set + + if Opt.Print_Standard then + Print_Standard; + end if; + end Create_Standard; + + ------------------------------------ + -- Create_Unconstrained_Base_Type -- + ------------------------------------ + + procedure Create_Unconstrained_Base_Type + (E : Entity_Id; + K : Entity_Kind) + is + New_Ent : constant Entity_Id := New_Copy (E); + + begin + Set_Ekind (E, K); + Set_Is_Constrained (E, True); + Set_Is_First_Subtype (E, True); + Set_Etype (E, New_Ent); + + Append_Entity (New_Ent, Standard_Standard); + Set_Is_Constrained (New_Ent, False); + Set_Etype (New_Ent, New_Ent); + Set_Is_Known_Valid (New_Ent, True); + + if K = E_Signed_Integer_Subtype then + Set_Etype (Low_Bound (Scalar_Range (E)), New_Ent); + Set_Etype (High_Bound (Scalar_Range (E)), New_Ent); + end if; + + end Create_Unconstrained_Base_Type; + + -------------------- + -- Identifier_For -- + -------------------- + + function Identifier_For (S : Standard_Entity_Type) return Node_Id is + Ident_Node : Node_Id; + begin + Ident_Node := New_Node (N_Identifier, Stloc); + Set_Chars (Ident_Node, Chars (Standard_Entity (S))); + Set_Entity (Ident_Node, Standard_Entity (S)); + return Ident_Node; + end Identifier_For; + + -------------------- + -- Make_Component -- + -------------------- + + procedure Make_Component + (Rec : Entity_Id; + Typ : Entity_Id; + Nam : String) + is + Id : constant Entity_Id := New_Standard_Entity; + + begin + Set_Ekind (Id, E_Component); + Set_Etype (Id, Typ); + Set_Scope (Id, Rec); + Init_Component_Location (Id); + + Set_Original_Record_Component (Id, Id); + Make_Name (Id, Nam); + Append_Entity (Id, Rec); + end Make_Component; + + ----------------- + -- Make_Formal -- + ----------------- + + function Make_Formal + (Typ : Entity_Id; + Formal_Name : String) return Entity_Id + is + Formal : Entity_Id; + + begin + Formal := New_Standard_Entity; + + Set_Ekind (Formal, E_In_Parameter); + Set_Mechanism (Formal, Default_Mechanism); + Set_Scope (Formal, Standard_Standard); + Set_Etype (Formal, Typ); + Make_Name (Formal, Formal_Name); + + return Formal; + end Make_Formal; + + ------------------ + -- Make_Integer -- + ------------------ + + function Make_Integer (V : Uint) return Node_Id is + N : constant Node_Id := Make_Integer_Literal (Stloc, V); + begin + Set_Is_Static_Expression (N); + return N; + end Make_Integer; + + --------------- + -- Make_Name -- + --------------- + + procedure Make_Name (Id : Entity_Id; Nam : String) is + begin + for J in 1 .. Nam'Length loop + Name_Buffer (J) := Fold_Lower (Nam (Nam'First + (J - 1))); + end loop; + + Name_Len := Nam'Length; + Set_Chars (Id, Name_Find); + end Make_Name; + + ------------------ + -- New_Operator -- + ------------------ + + function New_Operator (Op : Name_Id; Typ : Entity_Id) return Entity_Id is + Ident_Node : Entity_Id; + + begin + Ident_Node := Make_Defining_Identifier (Stloc, Op); + + Set_Is_Pure (Ident_Node, True); + Set_Ekind (Ident_Node, E_Operator); + Set_Etype (Ident_Node, Typ); + Set_Scope (Ident_Node, Standard_Standard); + Set_Homonym (Ident_Node, Get_Name_Entity_Id (Op)); + Set_Convention (Ident_Node, Convention_Intrinsic); + + Set_Is_Immediately_Visible (Ident_Node, True); + Set_Is_Intrinsic_Subprogram (Ident_Node, True); + + Set_Name_Entity_Id (Op, Ident_Node); + Append_Entity (Ident_Node, Standard_Standard); + return Ident_Node; + end New_Operator; + + ------------------------- + -- New_Standard_Entity -- + ------------------------- + + function New_Standard_Entity + (New_Node_Kind : Node_Kind := N_Defining_Identifier) return Entity_Id + is + E : constant Entity_Id := New_Entity (New_Node_Kind, Stloc); + + begin + -- All standard entities are Pure and Public + + Set_Is_Pure (E); + Set_Is_Public (E); + + -- All standard entity names are analyzed manually, and are thus + -- frozen as soon as they are created. + + Set_Is_Frozen (E); + + -- Set debug information required for all standard types + + Set_Needs_Debug_Info (E); + + -- All standard entities are built with fully qualified names, so + -- set the flag to prevent an abortive attempt at requalification. + + Set_Has_Qualified_Name (E); + + -- Return newly created entity to be completed by caller + + return E; + end New_Standard_Entity; + + function New_Standard_Entity (S : String) return Entity_Id is + Ent : constant Entity_Id := New_Standard_Entity; + begin + Make_Name (Ent, S); + return Ent; + end New_Standard_Entity; + + -------------------- + -- Print_Standard -- + -------------------- + + procedure Print_Standard is + + procedure P (Item : String) renames Output.Write_Line; + -- Short-hand, since we do a lot of line writes here + + procedure P_Int_Range (Size : Pos); + -- Prints the range of an integer based on its Size + + procedure P_Float_Range (Id : Entity_Id); + -- Prints the bounds range for the given float type entity + + procedure P_Float_Type (Id : Entity_Id); + -- Prints the type declaration of the given float type entity + + procedure P_Mixed_Name (Id : Name_Id); + -- Prints Id in mixed case + + ------------------- + -- P_Float_Range -- + ------------------- + + procedure P_Float_Range (Id : Entity_Id) is + begin + Write_Str (" range "); + UR_Write (Realval (Type_Low_Bound (Id))); + Write_Str (" .. "); + UR_Write (Realval (Type_High_Bound (Id))); + Write_Str (";"); + Write_Eol; + end P_Float_Range; + + ------------------ + -- P_Float_Type -- + ------------------ + + procedure P_Float_Type (Id : Entity_Id) is + begin + Write_Str (" type "); + P_Mixed_Name (Chars (Id)); + Write_Str (" is digits "); + Write_Int (UI_To_Int (Digits_Value (Id))); + Write_Eol; + P_Float_Range (Id); + Write_Str (" for "); + P_Mixed_Name (Chars (Id)); + Write_Str ("'Size use "); + Write_Int (UI_To_Int (RM_Size (Id))); + Write_Line (";"); + Write_Eol; + end P_Float_Type; + + ----------------- + -- P_Int_Range -- + ----------------- + + procedure P_Int_Range (Size : Pos) is + begin + Write_Str (" is range -(2 **"); + Write_Int (Size - 1); + Write_Str (")"); + Write_Str (" .. +(2 **"); + Write_Int (Size - 1); + Write_Str (" - 1);"); + Write_Eol; + end P_Int_Range; + + ------------------ + -- P_Mixed_Name -- + ------------------ + + procedure P_Mixed_Name (Id : Name_Id) is + begin + Get_Name_String (Id); + + for J in 1 .. Name_Len loop + if J = 1 or else Name_Buffer (J - 1) = '_' then + Name_Buffer (J) := Fold_Upper (Name_Buffer (J)); + end if; + end loop; + + Write_Str (Name_Buffer (1 .. Name_Len)); + end P_Mixed_Name; + + -- Start of processing for Print_Standard + + begin + P ("-- Representation of package Standard"); + Write_Eol; + P ("-- This is not accurate Ada, since new base types cannot be "); + P ("-- created, but the listing shows the target dependent"); + P ("-- characteristics of the Standard types for this compiler"); + Write_Eol; + + P ("package Standard is"); + P ("pragma Pure (Standard);"); + Write_Eol; + + P (" type Boolean is (False, True);"); + P (" for Boolean'Size use 1;"); + P (" for Boolean use (False => 0, True => 1);"); + Write_Eol; + + -- Integer types + + Write_Str (" type Integer"); + P_Int_Range (Standard_Integer_Size); + Write_Str (" for Integer'Size use "); + Write_Int (Standard_Integer_Size); + P (";"); + Write_Eol; + + P (" subtype Natural is Integer range 0 .. Integer'Last;"); + P (" subtype Positive is Integer range 1 .. Integer'Last;"); + Write_Eol; + + Write_Str (" type Short_Short_Integer"); + P_Int_Range (Standard_Short_Short_Integer_Size); + Write_Str (" for Short_Short_Integer'Size use "); + Write_Int (Standard_Short_Short_Integer_Size); + P (";"); + Write_Eol; + + Write_Str (" type Short_Integer"); + P_Int_Range (Standard_Short_Integer_Size); + Write_Str (" for Short_Integer'Size use "); + Write_Int (Standard_Short_Integer_Size); + P (";"); + Write_Eol; + + Write_Str (" type Long_Integer"); + P_Int_Range (Standard_Long_Integer_Size); + Write_Str (" for Long_Integer'Size use "); + Write_Int (Standard_Long_Integer_Size); + P (";"); + Write_Eol; + + Write_Str (" type Long_Long_Integer"); + P_Int_Range (Standard_Long_Long_Integer_Size); + Write_Str (" for Long_Long_Integer'Size use "); + Write_Int (Standard_Long_Long_Integer_Size); + P (";"); + Write_Eol; + + -- Floating point types + + P_Float_Type (Standard_Short_Float); + P_Float_Type (Standard_Float); + P_Float_Type (Standard_Long_Float); + P_Float_Type (Standard_Long_Long_Float); + + P (" type Character is (...)"); + Write_Str (" for Character'Size use "); + Write_Int (Standard_Character_Size); + P (";"); + P (" -- See RM A.1(35) for details of this type"); + Write_Eol; + + P (" type Wide_Character is (...)"); + Write_Str (" for Wide_Character'Size use "); + Write_Int (Standard_Wide_Character_Size); + P (";"); + P (" -- See RM A.1(36) for details of this type"); + Write_Eol; + + P (" type Wide_Wide_Character is (...)"); + Write_Str (" for Wide_Wide_Character'Size use "); + Write_Int (Standard_Wide_Wide_Character_Size); + P (";"); + P (" -- See RM A.1(36) for details of this type"); + + P (" type String is array (Positive range <>) of Character;"); + P (" pragma Pack (String);"); + Write_Eol; + + P (" type Wide_String is array (Positive range <>)" & + " of Wide_Character;"); + P (" pragma Pack (Wide_String);"); + Write_Eol; + + P (" type Wide_Wide_String is array (Positive range <>)" & + " of Wide_Wide_Character;"); + P (" pragma Pack (Wide_Wide_String);"); + Write_Eol; + + -- We only have one representation each for 32-bit and 64-bit sizes, + -- so select the right one based on Duration_32_Bits_On_Target. + + if Duration_32_Bits_On_Target then + P (" type Duration is delta 0.020"); + P (" range -((2 ** 31) * 0.020) .."); + P (" +((2 ** 31 - 1) * 0.020);"); + P (" for Duration'Small use 0.020;"); + + else + P (" type Duration is delta 0.000000001"); + P (" range -((2 ** 63) * 0.000000001) .."); + P (" +((2 ** 63 - 1) * 0.000000001);"); + P (" for Duration'Small use 0.000000001;"); + end if; + + Write_Eol; + + P (" Constraint_Error : exception;"); + P (" Program_Error : exception;"); + P (" Storage_Error : exception;"); + P (" Tasking_Error : exception;"); + P (" Numeric_Error : exception renames Constraint_Error;"); + Write_Eol; + + P ("end Standard;"); + end Print_Standard; + + ------------------------- + -- Register_Float_Type -- + ------------------------- + + procedure Register_Float_Type + (Name : String; + Digs : Positive; + Float_Rep : Float_Rep_Kind; + Precision : Positive; + Size : Positive; + Alignment : Natural) + is + pragma Unreferenced (Precision); + -- See Build_Float_Type for the rationale + + Ent : constant Entity_Id := New_Standard_Entity; + + begin + Set_Defining_Identifier (New_Node (N_Full_Type_Declaration, Stloc), Ent); + Make_Name (Ent, Name); + Set_Scope (Ent, Standard_Standard); + Build_Float_Type + (Ent, Pos (Digs), Float_Rep, Int (Size), Int (Alignment / 8)); + + if No (Back_End_Float_Types) then + Back_End_Float_Types := New_Elmt_List; + end if; + + Append_Elmt (Ent, Back_End_Float_Types); + end Register_Float_Type; + + ---------------------- + -- Set_Float_Bounds -- + ---------------------- + + procedure Set_Float_Bounds (Id : Entity_Id) is + L : Node_Id; + H : Node_Id; + -- Low and high bounds of literal value + + R : Node_Id; + -- Range specification + + Radix : constant Uint := Machine_Radix_Value (Id); + Mantissa : constant Uint := Machine_Mantissa_Value (Id); + Emax : constant Uint := Machine_Emax_Value (Id); + Significand : constant Uint := Radix ** Mantissa - 1; + Exponent : constant Uint := Emax - Mantissa; + + begin + H := Make_Float_Literal (Stloc, Radix, Significand, Exponent); + L := Make_Float_Literal (Stloc, Radix, -Significand, Exponent); + + Set_Etype (L, Id); + Set_Is_Static_Expression (L); + + Set_Etype (H, Id); + Set_Is_Static_Expression (H); + + R := New_Node (N_Range, Stloc); + Set_Low_Bound (R, L); + Set_High_Bound (R, H); + Set_Includes_Infinities (R, True); + Set_Scalar_Range (Id, R); + Set_Etype (R, Id); + Set_Parent (R, Id); + end Set_Float_Bounds; + + ------------------------ + -- Set_Integer_Bounds -- + ------------------------ + + procedure Set_Integer_Bounds + (Id : Entity_Id; + Typ : Entity_Id; + Lb : Uint; + Hb : Uint) + is + L : Node_Id; + H : Node_Id; + -- Low and high bounds of literal value + + R : Node_Id; + -- Range specification + + begin + L := Make_Integer (Lb); + H := Make_Integer (Hb); + + Set_Etype (L, Typ); + Set_Etype (H, Typ); + + R := New_Node (N_Range, Stloc); + Set_Low_Bound (R, L); + Set_High_Bound (R, H); + Set_Scalar_Range (Id, R); + Set_Etype (R, Typ); + Set_Parent (R, Id); + Set_Is_Unsigned_Type (Id, Lb >= 0); + end Set_Integer_Bounds; + +end CStand;