diff options
| author | Tristan Gingold <tgingold@free.fr> | 2014-11-09 05:12:27 +0100 |
|---|---|---|
| committer | Tristan Gingold <tgingold@free.fr> | 2014-11-09 05:12:27 +0100 |
| commit | 3c9a77e9e6f3b8047080f7d8c11bb9881cabf968 (patch) | |
| tree | bac89707005c5e97250e6f199f5a0d7512bcdfc6 | |
| parent | d4fae1fbd5bd371bb53dd3a942e2c4378205524d (diff) | |
| download | ghdl-3c9a77e9e6f3b8047080f7d8c11bb9881cabf968.tar.gz ghdl-3c9a77e9e6f3b8047080f7d8c11bb9881cabf968.tar.bz2 ghdl-3c9a77e9e6f3b8047080f7d8c11bb9881cabf968.zip | |
Refactoring of translation, part 1/N
| -rw-r--r-- | src/vhdl/translate/trans.adb | 2034 | ||||
| -rw-r--r-- | src/vhdl/translate/trans.ads | 1685 | ||||
| -rw-r--r-- | src/vhdl/translate/translation.adb | 3788 |
3 files changed, 3854 insertions, 3653 deletions
diff --git a/src/vhdl/translate/trans.adb b/src/vhdl/translate/trans.adb new file mode 100644 index 000000000..faed4b6f8 --- /dev/null +++ b/src/vhdl/translate/trans.adb @@ -0,0 +1,2034 @@ +-- Iir to ortho translator. +-- Copyright (C) 2002-2014 Tristan Gingold +-- +-- GHDL is free software; you can redistribute it and/or modify it under +-- the terms of the GNU General Public License as published by the Free +-- Software Foundation; either version 2, or (at your option) any later +-- version. +-- +-- GHDL is distributed in the hope that it will be useful, but WITHOUT 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 +-- along with GCC; see the file COPYING. If not, write to the Free +-- Software Foundation, 59 Temple Place - Suite 330, Boston, MA +-- 02111-1307, USA. + +with Name_Table; -- use Name_Table; +with Nodes; +with GNAT.Table; +with Trans_Decls; use Trans_Decls; + +package body Trans is + use Trans.Helpers; + + package body Subprgs is + procedure Clear_Subprg_Instance (Prev : out Subprg_Instance_Stack) is + begin + Prev := Current_Subprg_Instance; + Current_Subprg_Instance := Null_Subprg_Instance_Stack; + end Clear_Subprg_Instance; + + procedure Push_Subprg_Instance (Scope : Var_Scope_Acc; + Ptr_Type : O_Tnode; + Ident : O_Ident; + Prev : out Subprg_Instance_Stack) + is + begin + Prev := Current_Subprg_Instance; + Current_Subprg_Instance := (Scope => Scope, + Ptr_Type => Ptr_Type, + Ident => Ident); + end Push_Subprg_Instance; + + function Has_Current_Subprg_Instance return Boolean is + begin + return Current_Subprg_Instance.Ptr_Type /= O_Tnode_Null; + end Has_Current_Subprg_Instance; + + procedure Pop_Subprg_Instance (Ident : O_Ident; + Prev : Subprg_Instance_Stack) + is + begin + if Is_Equal (Current_Subprg_Instance.Ident, Ident) then + Current_Subprg_Instance := Prev; + else + -- POP does not match with a push. + raise Internal_Error; + end if; + end Pop_Subprg_Instance; + + procedure Add_Subprg_Instance_Interfaces + (Interfaces : in out O_Inter_List; Vars : out Subprg_Instance_Type) + is + begin + if Has_Current_Subprg_Instance then + Vars.Scope := Current_Subprg_Instance.Scope; + Vars.Inter_Type := Current_Subprg_Instance.Ptr_Type; + New_Interface_Decl + (Interfaces, Vars.Inter, + Current_Subprg_Instance.Ident, + Current_Subprg_Instance.Ptr_Type); + else + Vars := Null_Subprg_Instance; + end if; + end Add_Subprg_Instance_Interfaces; + + procedure Add_Subprg_Instance_Field (Field : out O_Fnode) is + begin + if Has_Current_Subprg_Instance then + Field := Add_Instance_Factory_Field + (Current_Subprg_Instance.Ident, + Current_Subprg_Instance.Ptr_Type); + else + Field := O_Fnode_Null; + end if; + end Add_Subprg_Instance_Field; + + function Has_Subprg_Instance (Vars : Subprg_Instance_Type) + return Boolean is + begin + return Vars.Inter /= O_Dnode_Null; + end Has_Subprg_Instance; + + function Get_Subprg_Instance (Vars : Subprg_Instance_Type) + return O_Enode is + begin + pragma Assert (Has_Subprg_Instance (Vars)); + return New_Address (Get_Instance_Ref (Vars.Scope.all), + Vars.Inter_Type); + end Get_Subprg_Instance; + + procedure Add_Subprg_Instance_Assoc + (Assocs : in out O_Assoc_List; Vars : Subprg_Instance_Type) is + begin + if Has_Subprg_Instance (Vars) then + New_Association (Assocs, Get_Subprg_Instance (Vars)); + end if; + end Add_Subprg_Instance_Assoc; + + procedure Set_Subprg_Instance_Field + (Var : O_Dnode; Field : O_Fnode; Vars : Subprg_Instance_Type) + is + begin + if Has_Subprg_Instance (Vars) then + New_Assign_Stmt (New_Selected_Acc_Value (New_Obj (Var), Field), + New_Obj_Value (Vars.Inter)); + end if; + end Set_Subprg_Instance_Field; + + procedure Start_Subprg_Instance_Use (Vars : Subprg_Instance_Type) is + begin + if Has_Subprg_Instance (Vars) then + Set_Scope_Via_Param_Ptr (Vars.Scope.all, Vars.Inter); + end if; + end Start_Subprg_Instance_Use; + + procedure Finish_Subprg_Instance_Use (Vars : Subprg_Instance_Type) is + begin + if Has_Subprg_Instance (Vars) then + Clear_Scope (Vars.Scope.all); + end if; + end Finish_Subprg_Instance_Use; + + procedure Start_Prev_Subprg_Instance_Use_Via_Field + (Prev : Subprg_Instance_Stack; Field : O_Fnode) is + begin + if Field /= O_Fnode_Null then + Set_Scope_Via_Field_Ptr (Prev.Scope.all, Field, + Current_Subprg_Instance.Scope); + end if; + end Start_Prev_Subprg_Instance_Use_Via_Field; + + procedure Finish_Prev_Subprg_Instance_Use_Via_Field + (Prev : Subprg_Instance_Stack; Field : O_Fnode) is + begin + if Field /= O_Fnode_Null then + Clear_Scope (Prev.Scope.all); + end if; + end Finish_Prev_Subprg_Instance_Use_Via_Field; + + procedure Create_Subprg_Instance (Interfaces : in out O_Inter_List; + Subprg : Iir) + is + begin + Add_Subprg_Instance_Interfaces + (Interfaces, Get_Info (Subprg).Subprg_Instance); + end Create_Subprg_Instance; + + procedure Start_Subprg_Instance_Use (Subprg : Iir) is + begin + Start_Subprg_Instance_Use (Get_Info (Subprg).Subprg_Instance); + end Start_Subprg_Instance_Use; + + procedure Finish_Subprg_Instance_Use (Subprg : Iir) is + begin + Finish_Subprg_Instance_Use (Get_Info (Subprg).Subprg_Instance); + end Finish_Subprg_Instance_Use; + + function Instantiate_Subprg_Instance (Inst : Subprg_Instance_Type) + return Subprg_Instance_Type is + begin + return Subprg_Instance_Type' + (Inter => Inst.Inter, + Inter_Type => Inst.Inter_Type, + Scope => Instantiated_Var_Scope (Inst.Scope)); + end Instantiate_Subprg_Instance; + end Subprgs; + + package body Chap10 is + -- Identifiers. + -- The following functions are helpers to create ortho identifiers. + Identifier_Buffer : String (1 .. 512); + Identifier_Len : Natural := 0; + Identifier_Start : Natural := 1; + Identifier_Local : Local_Identifier_Type := 0; + + + Inst_Build : Inst_Build_Acc := null; + procedure Unchecked_Deallocation is new Ada.Unchecked_Deallocation + (Object => Inst_Build_Type, Name => Inst_Build_Acc); + + procedure Set_Global_Storage (Storage : O_Storage) is + begin + Global_Storage := Storage; + end Set_Global_Storage; + + procedure Pop_Build_Instance + is + Old : Inst_Build_Acc; + begin + Old := Inst_Build; + Identifier_Start := Old.Prev_Id_Start; + Inst_Build := Old.Prev; + Unchecked_Deallocation (Old); + end Pop_Build_Instance; + + function Get_Scope_Type (Scope : Var_Scope_Type) return O_Tnode is + begin + pragma Assert (Scope.Scope_Type /= O_Tnode_Null); + return Scope.Scope_Type; + end Get_Scope_Type; + + function Get_Scope_Size (Scope : Var_Scope_Type) return O_Cnode is + begin + pragma Assert (Scope.Scope_Type /= O_Tnode_Null); + return New_Sizeof (Scope.Scope_Type, Ghdl_Index_Type); + end Get_Scope_Size; + + function Has_Scope_Type (Scope : Var_Scope_Type) return Boolean is + begin + return Scope.Scope_Type /= O_Tnode_Null; + end Has_Scope_Type; + + procedure Predeclare_Scope_Type (Scope : Var_Scope_Acc; Name : O_Ident) + is + begin + pragma Assert (Scope.Scope_Type = O_Tnode_Null); + New_Uncomplete_Record_Type (Scope.Scope_Type); + New_Type_Decl (Name, Scope.Scope_Type); + end Predeclare_Scope_Type; + + procedure Declare_Scope_Acc + (Scope : Var_Scope_Type; Name : O_Ident; Ptr_Type : out O_Tnode) is + begin + Ptr_Type := New_Access_Type (Get_Scope_Type (Scope)); + New_Type_Decl (Name, Ptr_Type); + end Declare_Scope_Acc; + + procedure Push_Instance_Factory (Scope : Var_Scope_Acc) + is + Inst : Inst_Build_Acc; + begin + if Inst_Build /= null and then Inst_Build.Kind /= Instance then + raise Internal_Error; + end if; + Inst := new Inst_Build_Type (Instance); + Inst.Prev := Inst_Build; + Inst.Prev_Id_Start := Identifier_Start; + Inst.Scope := Scope; + + Identifier_Start := Identifier_Len + 1; + + if Scope.Scope_Type /= O_Tnode_Null then + Start_Uncomplete_Record_Type (Scope.Scope_Type, Inst.Elements); + else + Start_Record_Type (Inst.Elements); + end if; + Inst_Build := Inst; + end Push_Instance_Factory; + + function Add_Instance_Factory_Field (Name : O_Ident; Ftype : O_Tnode) + return O_Fnode + is + Res : O_Fnode; + begin + New_Record_Field (Inst_Build.Elements, Res, Name, Ftype); + return Res; + end Add_Instance_Factory_Field; + + procedure Add_Scope_Field + (Name : O_Ident; Child : in out Var_Scope_Type) + is + Field : O_Fnode; + begin + Field := Add_Instance_Factory_Field (Name, Get_Scope_Type (Child)); + Set_Scope_Via_Field (Child, Field, Inst_Build.Scope); + end Add_Scope_Field; + + function Get_Scope_Offset (Child : Var_Scope_Type; Otype : O_Tnode) + return O_Cnode is + begin + return New_Offsetof (Get_Scope_Type (Child.Up_Link.all), + Child.Field, Otype); + end Get_Scope_Offset; + + procedure Pop_Instance_Factory (Scope : in Var_Scope_Acc) + is + Res : O_Tnode; + begin + if Inst_Build.Kind /= Instance then + -- Not matching. + raise Internal_Error; + end if; + Finish_Record_Type (Inst_Build.Elements, Res); + Pop_Build_Instance; + Scope.Scope_Type := Res; + end Pop_Instance_Factory; + + procedure Push_Local_Factory + is + Inst : Inst_Build_Acc; + begin + if Inst_Build /= null + and then (Inst_Build.Kind /= Global and Inst_Build.Kind /= Local) + then + -- Cannot create a local factory on an instance. + raise Internal_Error; + end if; + Inst := new Inst_Build_Type (Kind => Local); + Inst.Prev := Inst_Build; + Inst.Prev_Global_Storage := Global_Storage; + + Inst.Prev_Id_Start := Identifier_Start; + Identifier_Start := Identifier_Len + 1; + + Inst_Build := Inst; + case Global_Storage is + when O_Storage_Public => + Global_Storage := O_Storage_Private; + when O_Storage_Private + | O_Storage_External => + null; + when O_Storage_Local => + raise Internal_Error; + end case; + end Push_Local_Factory; + + -- Return TRUE is the current scope is local. + function Is_Local_Scope return Boolean is + begin + if Inst_Build = null then + return False; + end if; + case Inst_Build.Kind is + when Local + | Instance => + return True; + when Global => + return False; + end case; + end Is_Local_Scope; + + procedure Pop_Local_Factory is + begin + if Inst_Build.Kind /= Local then + -- Not matching. + raise Internal_Error; + end if; + Global_Storage := Inst_Build.Prev_Global_Storage; + Pop_Build_Instance; + end Pop_Local_Factory; + + procedure Set_Scope_Via_Field + (Scope : in out Var_Scope_Type; + Scope_Field : O_Fnode; Scope_Parent : Var_Scope_Acc) is + begin + pragma Assert (Scope.Kind = Var_Scope_None); + Scope := (Scope_Type => Scope.Scope_Type, + Kind => Var_Scope_Field, + Field => Scope_Field, Up_Link => Scope_Parent); + end Set_Scope_Via_Field; + + procedure Set_Scope_Via_Field_Ptr + (Scope : in out Var_Scope_Type; + Scope_Field : O_Fnode; Scope_Parent : Var_Scope_Acc) is + begin + pragma Assert (Scope.Kind = Var_Scope_None); + Scope := (Scope_Type => Scope.Scope_Type, + Kind => Var_Scope_Field_Ptr, + Field => Scope_Field, Up_Link => Scope_Parent); + end Set_Scope_Via_Field_Ptr; + + procedure Set_Scope_Via_Var_Ptr + (Scope : in out Var_Scope_Type; Var : Var_Type) is + begin + pragma Assert (Scope.Kind = Var_Scope_None); + pragma Assert (Var.Kind = Var_Scope); + Scope := (Scope_Type => Scope.Scope_Type, + Kind => Var_Scope_Field_Ptr, + Field => Var.I_Field, Up_Link => Var.I_Scope); + end Set_Scope_Via_Var_Ptr; + + procedure Set_Scope_Via_Param_Ptr + (Scope : in out Var_Scope_Type; Scope_Param : O_Dnode) is + begin + pragma Assert (Scope.Kind = Var_Scope_None); + Scope := (Scope_Type => Scope.Scope_Type, + Kind => Var_Scope_Ptr, D => Scope_Param); + end Set_Scope_Via_Param_Ptr; + + procedure Set_Scope_Via_Decl + (Scope : in out Var_Scope_Type; Decl : O_Dnode) is + begin + pragma Assert (Scope.Kind = Var_Scope_None); + Scope := (Scope_Type => Scope.Scope_Type, + Kind => Var_Scope_Decl, D => Decl); + end Set_Scope_Via_Decl; + + procedure Clear_Scope (Scope : in out Var_Scope_Type) is + begin + pragma Assert (Scope.Kind /= Var_Scope_None); + Scope := (Scope_Type => Scope.Scope_Type, Kind => Var_Scope_None); + end Clear_Scope; + + function Create_Global_Var + (Name : O_Ident; Vtype : O_Tnode; Storage : O_Storage) + return Var_Type + is + Var : O_Dnode; + begin + New_Var_Decl (Var, Name, Storage, Vtype); + return Var_Type'(Kind => Var_Global, E => Var); + end Create_Global_Var; + + function Create_Global_Const + (Name : O_Ident; + Vtype : O_Tnode; + Storage : O_Storage; + Initial_Value : O_Cnode) + return Var_Type + is + Res : O_Dnode; + begin + New_Const_Decl (Res, Name, Storage, Vtype); + if Storage /= O_Storage_External + and then Initial_Value /= O_Cnode_Null + then + Start_Const_Value (Res); + Finish_Const_Value (Res, Initial_Value); + end if; + return Var_Type'(Kind => Var_Global, E => Res); + end Create_Global_Const; + + procedure Define_Global_Const (Const : in out Var_Type; Val : O_Cnode) is + begin + Start_Const_Value (Const.E); + Finish_Const_Value (Const.E, Val); + end Define_Global_Const; + + function Create_Var + (Name : Var_Ident_Type; + Vtype : O_Tnode; + Storage : O_Storage := Global_Storage) + return Var_Type + is + Res : O_Dnode; + Field : O_Fnode; + K : Inst_Build_Kind_Type; + begin + if Inst_Build = null then + K := Global; + else + K := Inst_Build.Kind; + end if; + case K is + when Global => + -- The global scope is in use... + return Create_Global_Var (Name.Id, Vtype, Storage); + when Local => + -- It is always possible to create a variable in a local scope. + -- Create a var. + New_Var_Decl (Res, Name.Id, O_Storage_Local, Vtype); + return Var_Type'(Kind => Var_Local, E => Res); + when Instance => + -- Create a field. + New_Record_Field (Inst_Build.Elements, Field, Name.Id, Vtype); + return Var_Type'(Kind => Var_Scope, I_Field => Field, + I_Scope => Inst_Build.Scope); + end case; + end Create_Var; + + -- Get a reference to scope STYPE. If IS_PTR is set, RES is an access + -- to the scope, otherwise RES directly designates the scope. + procedure Find_Scope (Scope : Var_Scope_Type; + Res : out O_Lnode; + Is_Ptr : out Boolean) is + begin + case Scope.Kind is + when Var_Scope_None => + raise Internal_Error; + when Var_Scope_Ptr + | Var_Scope_Decl => + Res := New_Obj (Scope.D); + Is_Ptr := Scope.Kind = Var_Scope_Ptr; + when Var_Scope_Field + | Var_Scope_Field_Ptr => + declare + Parent : O_Lnode; + Parent_Ptr : Boolean; + begin + Find_Scope (Scope.Up_Link.all, Parent, Parent_Ptr); + if Parent_Ptr then + Parent := New_Acc_Value (Parent); + end if; + Res := New_Selected_Element (Parent, Scope.Field); + Is_Ptr := Scope.Kind = Var_Scope_Field_Ptr; + end; + end case; + end Find_Scope; + + procedure Check_Not_Building is + begin + -- Variables cannot be referenced if there is an instance being + -- built. + if Inst_Build /= null and then Inst_Build.Kind = Instance then + raise Internal_Error; + end if; + end Check_Not_Building; + + function Get_Instance_Access (Block : Iir) return O_Enode + is + Info : constant Block_Info_Acc := Get_Info (Block); + Res : O_Lnode; + Is_Ptr : Boolean; + begin + Check_Not_Building; + Find_Scope (Info.Block_Scope, Res, Is_Ptr); + if Is_Ptr then + return New_Value (Res); + else + return New_Address (Res, Info.Block_Decls_Ptr_Type); + end if; + end Get_Instance_Access; + + function Get_Instance_Ref (Scope : Var_Scope_Type) return O_Lnode + is + Res : O_Lnode; + Is_Ptr : Boolean; + begin + Check_Not_Building; + Find_Scope (Scope, Res, Is_Ptr); + if Is_Ptr then + return New_Acc_Value (Res); + else + return Res; + end if; + end Get_Instance_Ref; + + function Get_Var (Var : Var_Type) return O_Lnode + is + begin + case Var.Kind is + when Var_None => + raise Internal_Error; + when Var_Local + | Var_Global => + return New_Obj (Var.E); + when Var_Scope => + return New_Selected_Element + (Get_Instance_Ref (Var.I_Scope.all), Var.I_Field); + end case; + end Get_Var; + + function Get_Alloc_Kind_For_Var (Var : Var_Type) + return Allocation_Kind is + begin + case Var.Kind is + when Var_Local => + return Alloc_Stack; + when Var_Global + | Var_Scope => + return Alloc_System; + when Var_None => + raise Internal_Error; + end case; + end Get_Alloc_Kind_For_Var; + + function Is_Var_Stable (Var : Var_Type) return Boolean is + begin + case Var.Kind is + when Var_Local + | Var_Global => + return True; + when Var_Scope => + return False; + when Var_None => + raise Internal_Error; + end case; + end Is_Var_Stable; + + function Is_Var_Field (Var : Var_Type) return Boolean is + begin + case Var.Kind is + when Var_Local + | Var_Global => + return False; + when Var_Scope => + return True; + when Var_None => + raise Internal_Error; + end case; + end Is_Var_Field; + + function Get_Var_Offset (Var : Var_Type; Otype : O_Tnode) return O_Cnode + is + begin + return New_Offsetof (Get_Scope_Type (Var.I_Scope.all), + Var.I_Field, Otype); + end Get_Var_Offset; + + function Get_Var_Label (Var : Var_Type) return O_Dnode is + begin + case Var.Kind is + when Var_Local + | Var_Global => + return Var.E; + when Var_Scope + | Var_None => + raise Internal_Error; + end case; + end Get_Var_Label; + + procedure Save_Local_Identifier (Id : out Local_Identifier_Type) is + begin + Id := Identifier_Local; + end Save_Local_Identifier; + + procedure Restore_Local_Identifier (Id : Local_Identifier_Type) is + begin + if Identifier_Local > Id then + -- If the value is restored with a smaller value, some identifiers + -- will be reused. This is certainly an internal error. + raise Internal_Error; + end if; + Identifier_Local := Id; + end Restore_Local_Identifier; + + -- Reset the identifier. + procedure Reset_Identifier_Prefix is + begin + if Identifier_Len /= 0 or else Identifier_Local /= 0 then + raise Internal_Error; + end if; + end Reset_Identifier_Prefix; + + procedure Pop_Identifier_Prefix (Mark : in Id_Mark_Type) is + begin + Identifier_Len := Mark.Len; + Identifier_Local := Mark.Local_Id; + end Pop_Identifier_Prefix; + + procedure Add_String (Len : in out Natural; Str : String) is + begin + Identifier_Buffer (Len + 1 .. Len + Str'Length) := Str; + Len := Len + Str'Length; + end Add_String; + + procedure Add_Nat (Len : in out Natural; Val : Natural) + is + Num : String (1 .. 10); + V : Natural; + P : Natural; + begin + P := Num'Last; + V := Val; + loop + Num (P) := Character'Val (Character'Pos ('0') + V mod 10); + V := V / 10; + exit when V = 0; + P := P - 1; + end loop; + Add_String (Len, Num (P .. Num'Last)); + end Add_Nat; + + -- Convert name_id NAME to a string stored to + -- NAME_BUFFER (1 .. NAME_LENGTH). + -- + -- This encodes extended identifiers. + -- + -- Extended identifier encoding: + -- They start with 'X'. + -- Non extended character [0-9a-zA-Z] are left as is, + -- others are encoded to _XX, where XX is the character position in hex. + -- They finish with "__". + procedure Name_Id_To_String (Name : Name_Id) + is + use Name_Table; + + type Bool_Array_Type is array (Character) of Boolean; + pragma Pack (Bool_Array_Type); + Is_Extended_Char : constant Bool_Array_Type := + ('0' .. '9' | 'A' .. 'Z' | 'a' .. 'z' => False, + others => True); + + N_Len : Natural; + P : Natural; + C : Character; + begin + if Is_Character (Name) then + P := Character'Pos (Name_Table.Get_Character (Name)); + Name_Buffer (1) := 'C'; + Name_Buffer (2) := N2hex (P / 16); + Name_Buffer (3) := N2hex (P mod 16); + Name_Length := 3; + return; + else + Image (Name); + end if; + if Name_Buffer (1) /= '\' then + return; + end if; + -- Extended identifier. + -- Supress trailing backslash. + Name_Length := Name_Length - 1; + + -- Count number of characters in the extended string. + N_Len := Name_Length; + for I in 2 .. Name_Length loop + if Is_Extended_Char (Name_Buffer (I)) then + N_Len := N_Len + 2; + end if; + end loop; + + -- Convert. + Name_Buffer (1) := 'X'; + P := N_Len; + for J in reverse 2 .. Name_Length loop + C := Name_Buffer (J); + if Is_Extended_Char (C) then + Name_Buffer (P - 0) := N2hex (Character'Pos (C) mod 16); + Name_Buffer (P - 1) := N2hex (Character'Pos (C) / 16); + Name_Buffer (P - 2) := '_'; + P := P - 3; + else + Name_Buffer (P) := C; + P := P - 1; + end if; + end loop; + Name_Buffer (N_Len + 1) := '_'; + Name_Buffer (N_Len + 2) := '_'; + Name_Length := N_Len + 2; + end Name_Id_To_String; + + procedure Add_Name (Len : in out Natural; Name : Name_Id) + is + use Name_Table; + begin + Name_Id_To_String (Name); + Add_String (Len, Name_Buffer (1 .. Name_Length)); + end Add_Name; + + procedure Push_Identifier_Prefix (Mark : out Id_Mark_Type; + Name : String; + Val : Iir_Int32 := 0) + is + P : Natural; + begin + Mark.Len := Identifier_Len; + Mark.Local_Id := Identifier_Local; + Identifier_Local := 0; + P := Identifier_Len; + Add_String (P, Name); + if Val > 0 then + Add_String (P, "O"); + Add_Nat (P, Natural (Val)); + end if; + Add_String (P, "__"); + Identifier_Len := P; + end Push_Identifier_Prefix; + + -- Add a suffix to the prefix (!!!). + procedure Push_Identifier_Prefix + (Mark : out Id_Mark_Type; Name : Name_Id; Val : Iir_Int32 := 0) + is + use Name_Table; + begin + Name_Id_To_String (Name); + Push_Identifier_Prefix (Mark, Name_Buffer (1 .. Name_Length), Val); + end Push_Identifier_Prefix; + + procedure Push_Identifier_Prefix_Uniq (Mark : out Id_Mark_Type) + is + Str : String := Local_Identifier_Type'Image (Identifier_Local); + begin + Identifier_Local := Identifier_Local + 1; + Str (1) := 'U'; + Push_Identifier_Prefix (Mark, Str, 0); + end Push_Identifier_Prefix_Uniq; + + procedure Add_Identifier (Len : in out Natural; Id : Name_Id) is + begin + if Id /= Null_Identifier then + Add_Name (Len, Id); + end if; + end Add_Identifier; + + -- Create an identifier from IIR node ID without the prefix. + function Create_Identifier_Without_Prefix (Id : Iir) return O_Ident + is + use Name_Table; + begin + Name_Id_To_String (Get_Identifier (Id)); + return Get_Identifier (Name_Buffer (1 .. Name_Length)); + end Create_Identifier_Without_Prefix; + + function Create_Identifier_Without_Prefix (Id : Name_Id; Str : String) + return O_Ident + is + use Name_Table; + begin + Name_Id_To_String (Id); + Name_Buffer (Name_Length + 1 .. Name_Length + Str'Length) := Str; + return Get_Identifier (Name_Buffer (1 .. Name_Length + Str'Length)); + end Create_Identifier_Without_Prefix; + + -- Create an identifier from IIR node ID with prefix. + function Create_Id (Id : Name_Id; Str : String; Is_Local : Boolean) + return O_Ident + is + L : Natural; + begin + L := Identifier_Len; + Add_Identifier (L, Id); + Add_String (L, Str); + --Identifier_Buffer (L + Str'Length + 1) := Nul; + if Is_Local then + return Get_Identifier + (Identifier_Buffer (Identifier_Start .. L)); + else + return Get_Identifier (Identifier_Buffer (1 .. L)); + end if; + end Create_Id; + + function Create_Identifier (Id : Name_Id; Str : String := "") + return O_Ident + is + begin + return Create_Id (Id, Str, False); + end Create_Identifier; + + function Create_Identifier (Id : Iir; Str : String := "") + return O_Ident + is + begin + return Create_Id (Get_Identifier (Id), Str, False); + end Create_Identifier; + + function Create_Identifier + (Id : Iir; Val : Iir_Int32; Str : String := "") + return O_Ident + is + Len : Natural; + begin + Len := Identifier_Len; + Add_Identifier (Len, Get_Identifier (Id)); + + if Val > 0 then + Add_String (Len, "O"); + Add_Nat (Len, Natural (Val)); + end if; + Add_String (Len, Str); + return Get_Identifier (Identifier_Buffer (1 .. Len)); + end Create_Identifier; + + function Create_Identifier (Str : String) + return O_Ident + is + Len : Natural; + begin + Len := Identifier_Len; + Add_String (Len, Str); + return Get_Identifier (Identifier_Buffer (1 .. Len)); + end Create_Identifier; + + function Create_Identifier return O_Ident + is + begin + return Get_Identifier (Identifier_Buffer (1 .. Identifier_Len - 2)); + end Create_Identifier; + + function Create_Var_Identifier_From_Buffer (L : Natural) + return Var_Ident_Type + is + Start : Natural; + begin + if Is_Local_Scope then + Start := Identifier_Start; + else + Start := 1; + end if; + return (Id => Get_Identifier (Identifier_Buffer (Start .. L))); + end Create_Var_Identifier_From_Buffer; + + function Create_Var_Identifier (Id : Iir) + return Var_Ident_Type + is + L : Natural := Identifier_Len; + begin + Add_Identifier (L, Get_Identifier (Id)); + return Create_Var_Identifier_From_Buffer (L); + end Create_Var_Identifier; + + function Create_Var_Identifier (Id : String) + return Var_Ident_Type + is + L : Natural := Identifier_Len; + begin + Add_String (L, Id); + return Create_Var_Identifier_From_Buffer (L); + end Create_Var_Identifier; + + function Create_Var_Identifier (Id : Iir; Str : String; Val : Natural) + return Var_Ident_Type + is + L : Natural := Identifier_Len; + begin + Add_Identifier (L, Get_Identifier (Id)); + Add_String (L, Str); + if Val > 0 then + Add_String (L, "O"); + Add_Nat (L, Val); + end if; + return Create_Var_Identifier_From_Buffer (L); + end Create_Var_Identifier; + + function Create_Uniq_Identifier return Var_Ident_Type + is + Res : Var_Ident_Type; + begin + Res.Id := Create_Uniq_Identifier; + return Res; + end Create_Uniq_Identifier; + + type Instantiate_Var_Stack; + type Instantiate_Var_Stack_Acc is access Instantiate_Var_Stack; + + type Instantiate_Var_Stack is record + Orig_Scope : Var_Scope_Acc; + Inst_Scope : Var_Scope_Acc; + Prev : Instantiate_Var_Stack_Acc; + end record; + + Top_Instantiate_Var_Stack : Instantiate_Var_Stack_Acc := null; + Free_Instantiate_Var_Stack : Instantiate_Var_Stack_Acc := null; + + procedure Push_Instantiate_Var_Scope + (Inst_Scope : Var_Scope_Acc; Orig_Scope : Var_Scope_Acc) + is + Inst : Instantiate_Var_Stack_Acc; + begin + if Free_Instantiate_Var_Stack = null then + Inst := new Instantiate_Var_Stack; + else + Inst := Free_Instantiate_Var_Stack; + Free_Instantiate_Var_Stack := Inst.Prev; + end if; + Inst.all := (Orig_Scope => Orig_Scope, + Inst_Scope => Inst_Scope, + Prev => Top_Instantiate_Var_Stack); + Top_Instantiate_Var_Stack := Inst; + end Push_Instantiate_Var_Scope; + + procedure Pop_Instantiate_Var_Scope (Inst_Scope : Var_Scope_Acc) + is + Item : constant Instantiate_Var_Stack_Acc := + Top_Instantiate_Var_Stack; + begin + pragma Assert (Item /= null); + pragma Assert (Item.Inst_Scope = Inst_Scope); + Top_Instantiate_Var_Stack := Item.Prev; + Item.all := (Orig_Scope => null, + Inst_Scope => null, + Prev => Free_Instantiate_Var_Stack); + Free_Instantiate_Var_Stack := Item; + end Pop_Instantiate_Var_Scope; + + function Instantiated_Var_Scope (Scope : Var_Scope_Acc) + return Var_Scope_Acc + is + Item : Instantiate_Var_Stack_Acc; + begin + if Scope = null then + return null; + end if; + + Item := Top_Instantiate_Var_Stack; + loop + pragma Assert (Item /= null); + if Item.Orig_Scope = Scope then + return Item.Inst_Scope; + end if; + Item := Item.Prev; + end loop; + end Instantiated_Var_Scope; + + function Instantiate_Var (Var : Var_Type) return Var_Type is + begin + case Var.Kind is + when Var_None + | Var_Global + | Var_Local => + return Var; + when Var_Scope => + return Var_Type' + (Kind => Var_Scope, + I_Field => Var.I_Field, + I_Scope => Instantiated_Var_Scope (Var.I_Scope)); + end case; + end Instantiate_Var; + + function Instantiate_Var_Scope (Scope : Var_Scope_Type) + return Var_Scope_Type is + begin + case Scope.Kind is + when Var_Scope_None + | Var_Scope_Ptr + | Var_Scope_Decl => + return Scope; + when Var_Scope_Field => + return Var_Scope_Type' + (Kind => Var_Scope_Field, + Scope_Type => Scope.Scope_Type, + Field => Scope.Field, + Up_Link => Instantiated_Var_Scope (Scope.Up_Link)); + when Var_Scope_Field_Ptr => + return Var_Scope_Type' + (Kind => Var_Scope_Field_Ptr, + Scope_Type => Scope.Scope_Type, + Field => Scope.Field, + Up_Link => Instantiated_Var_Scope (Scope.Up_Link)); + end case; + end Instantiate_Var_Scope; + end Chap10; + + function Get_Object_Kind (M : Mnode) return Object_Kind_Type is + begin + return M.M1.K; + end Get_Object_Kind; + + function Get_Var + (Var : Var_Type; Vtype : Type_Info_Acc; Mode : Object_Kind_Type) + return Mnode + is + L : O_Lnode; + D : O_Dnode; + Stable : Boolean; + begin + -- FIXME: there may be Vv2M and Vp2M. + Stable := Is_Var_Stable (Var); + if Stable then + D := Get_Var_Label (Var); + else + L := Get_Var (Var); + end if; + case Vtype.Type_Mode is + when Type_Mode_Scalar + | Type_Mode_Acc + | Type_Mode_File + | Type_Mode_Fat_Array + | Type_Mode_Fat_Acc => + if Stable then + return Dv2M (D, Vtype, Mode); + else + return Lv2M (L, Vtype, Mode); + end if; + when Type_Mode_Array + | Type_Mode_Record + | Type_Mode_Protected => + if Is_Complex_Type (Vtype) then + if Stable then + return Dp2M (D, Vtype, Mode); + else + return Lp2M (L, Vtype, Mode); + end if; + else + if Stable then + return Dv2M (D, Vtype, Mode); + else + return Lv2M (L, Vtype, Mode); + end if; + end if; + when Type_Mode_Unknown => + raise Internal_Error; + end case; + end Get_Var; + + function Stabilize (M : Mnode; Can_Copy : Boolean := False) return Mnode + is + D : O_Dnode; + K : Object_Kind_Type; + begin + K := M.M1.K; + case M.M1.State is + when Mstate_E => + if M.M1.Comp then + D := Create_Temp_Init (M.M1.Ptype, M.M1.E); + return Mnode'(M1 => (State => Mstate_Dp, + Comp => M.M1.Comp, + K => K, T => M.M1.T, Dp => D, + Vtype => M.M1.Vtype, Ptype => M.M1.Ptype)); + else + D := Create_Temp_Init (M.M1.Vtype, M.M1.E); + return Mnode'(M1 => (State => Mstate_Dv, + Comp => M.M1.Comp, + K => K, T => M.M1.T, Dv => D, + Vtype => M.M1.Vtype, Ptype => M.M1.Ptype)); + end if; + when Mstate_Lp => + D := Create_Temp_Init (M.M1.Ptype, New_Value (M.M1.Lp)); + return Mnode'(M1 => (State => Mstate_Dp, + Comp => M.M1.Comp, + K => K, T => M.M1.T, Dp => D, + Vtype => M.M1.Vtype, Ptype => M.M1.Ptype)); + when Mstate_Lv => + if M.M1.Ptype = O_Tnode_Null then + if not Can_Copy then + raise Internal_Error; + end if; + D := Create_Temp_Init (M.M1.Vtype, New_Value (M.M1.Lv)); + return Mnode'(M1 => (State => Mstate_Dv, + Comp => M.M1.Comp, + K => K, T => M.M1.T, Dv => D, + Vtype => M.M1.Vtype, Ptype => M.M1.Ptype)); + + else + D := Create_Temp_Ptr (M.M1.Ptype, M.M1.Lv); + return Mnode'(M1 => (State => Mstate_Dp, + Comp => M.M1.Comp, + K => K, T => M.M1.T, Dp => D, + Vtype => M.M1.Vtype, Ptype => M.M1.Ptype)); + end if; + when Mstate_Dp + | Mstate_Dv => + return M; + when Mstate_Bad + | Mstate_Null => + raise Internal_Error; + end case; + end Stabilize; + + procedure Stabilize (M : in out Mnode) is + begin + M := Stabilize (M); + end Stabilize; + + function Stabilize_Value (M : Mnode) return Mnode + is + D : O_Dnode; + E : O_Enode; + begin + -- M must be scalar or access. + if M.M1.Comp then + raise Internal_Error; + end if; + case M.M1.State is + when Mstate_E => + E := M.M1.E; + when Mstate_Lp => + E := New_Value (New_Acc_Value (M.M1.Lp)); + when Mstate_Lv => + E := New_Value (M.M1.Lv); + when Mstate_Dp + | Mstate_Dv => + return M; + when Mstate_Bad + | Mstate_Null => + raise Internal_Error; + end case; + + D := Create_Temp_Init (M.M1.Vtype, E); + return Mnode'(M1 => (State => Mstate_Dv, + Comp => M.M1.Comp, + K => M.M1.K, T => M.M1.T, Dv => D, + Vtype => M.M1.Vtype, Ptype => M.M1.Ptype)); + end Stabilize_Value; + + function Create_Temp (Info : Type_Info_Acc; + Kind : Object_Kind_Type := Mode_Value) + return Mnode is + begin + if Is_Complex_Type (Info) + and then Info.Type_Mode /= Type_Mode_Fat_Array + then + -- For a complex and constrained object, we just allocate + -- a pointer to the object. + return Dp2M (Create_Temp (Info.Ortho_Ptr_Type (Kind)), Info, Kind); + else + return Dv2M (Create_Temp (Info.Ortho_Type (Kind)), Info, Kind); + end if; + end Create_Temp; + + function New_Value_Selected_Acc_Value (L : O_Lnode; Field : O_Fnode) + return O_Enode is + begin + return New_Value + (New_Selected_Element (New_Access_Element (New_Value (L)), Field)); + end New_Value_Selected_Acc_Value; + + function New_Selected_Acc_Value (L : O_Lnode; Field : O_Fnode) + return O_Lnode is + begin + return New_Selected_Element + (New_Access_Element (New_Value (L)), Field); + end New_Selected_Acc_Value; + + function New_Indexed_Acc_Value (L : O_Lnode; I : O_Enode) return O_Lnode + is + begin + return New_Indexed_Element (New_Access_Element (New_Value (L)), I); + end New_Indexed_Acc_Value; + + function New_Acc_Value (L : O_Lnode) return O_Lnode is + begin + return New_Access_Element (New_Value (L)); + end New_Acc_Value; + + package Node_Infos is new GNAT.Table + (Table_Component_Type => Ortho_Info_Acc, + Table_Index_Type => Iir, + Table_Low_Bound => 0, + Table_Initial => 1024, + Table_Increment => 100); + + procedure Init_Node_Infos is + begin + -- Create the node extension for translate. + Node_Infos.Init; + Node_Infos.Set_Last (4); + Node_Infos.Table (0 .. 4) := (others => null); + end Init_Node_Infos; + + procedure Update_Node_Infos + is + use Nodes; + F, L : Iir; + begin + F := Node_Infos.Last; + L := Nodes.Get_Last_Node; + Node_Infos.Set_Last (L); + Node_Infos.Table (F + 1 .. L) := (others => null); + end Update_Node_Infos; + + procedure Set_Info (Target : Iir; Info : Ortho_Info_Acc) is + begin + if Node_Infos.Table (Target) /= null then + raise Internal_Error; + end if; + Node_Infos.Table (Target) := Info; + end Set_Info; + + procedure Clear_Info (Target : Iir) is + begin + Node_Infos.Table (Target) := null; + end Clear_Info; + + function Get_Info (Target : Iir) return Ortho_Info_Acc is + begin + return Node_Infos.Table (Target); + end Get_Info; + + -- Create an ortho_info field of kind KIND for iir node TARGET, and + -- return it. + function Add_Info (Target : Iir; Kind : Ortho_Info_Kind) + return Ortho_Info_Acc + is + Res : Ortho_Info_Acc; + begin + Res := new Ortho_Info_Type (Kind); + Set_Info (Target, Res); + return Res; + end Add_Info; + + procedure Free_Info (Target : Iir) + is + Info : Ortho_Info_Acc; + begin + Info := Get_Info (Target); + if Info /= null then + Unchecked_Deallocation (Info); + Clear_Info (Target); + end if; + end Free_Info; + + procedure Free_Type_Info (Info : in out Type_Info_Acc) is + begin + if Info.C /= null then + Free_Complex_Type_Info (Info.C); + end if; + Unchecked_Deallocation (Info); + end Free_Type_Info; + + procedure Set_Ortho_Expr (Target : Iir; Expr : O_Cnode) + is + Info : Ortho_Info_Acc; + begin + Info := Add_Info (Target, Kind_Expr); + Info.Expr_Node := Expr; + end Set_Ortho_Expr; + + function Get_Ortho_Expr (Target : Iir) return O_Cnode is + begin + return Get_Info (Target).Expr_Node; + end Get_Ortho_Expr; + + function Get_Ortho_Type (Target : Iir; Is_Sig : Object_Kind_Type) + return O_Tnode is + begin + return Get_Info (Target).Ortho_Type (Is_Sig); + end Get_Ortho_Type; + + function Is_Composite (Info : Type_Info_Acc) return Boolean is + begin + return Info.Type_Mode in Type_Mode_Fat; + end Is_Composite; + + function Is_Complex_Type (Tinfo : Type_Info_Acc) return Boolean is + begin + return Tinfo.C /= null; + end Is_Complex_Type; + + procedure Free_Node_Infos + is + Info : Ortho_Info_Acc; + Prev_Info : Ortho_Info_Acc; + begin + Prev_Info := null; + for I in Node_Infos.First .. Node_Infos.Last loop + Info := Get_Info (I); + if Info /= null and then Info /= Prev_Info then + case Get_Kind (I) is + when Iir_Kind_Constant_Declaration => + if Get_Deferred_Declaration_Flag (I) = False + and then Get_Deferred_Declaration (I) /= Null_Iir + then + -- Info are copied from incomplete constant declaration + -- to full constant declaration. + Clear_Info (I); + else + Free_Info (I); + end if; + when Iir_Kind_Record_Subtype_Definition + | Iir_Kind_Access_Subtype_Definition => + null; + when Iir_Kind_Enumeration_Type_Definition + | Iir_Kind_Array_Type_Definition + | Iir_Kind_Integer_Subtype_Definition + | Iir_Kind_Floating_Subtype_Definition + | Iir_Kind_Physical_Subtype_Definition + | Iir_Kind_Enumeration_Subtype_Definition => + Free_Type_Info (Info); + when Iir_Kind_Array_Subtype_Definition => + if Get_Index_Constraint_Flag (I) then + Info.T := Ortho_Info_Type_Array_Init; + Free_Type_Info (Info); + end if; + when Iir_Kind_Implicit_Function_Declaration => + case Get_Implicit_Definition (I) is + when Iir_Predefined_Bit_Array_Match_Equality + | Iir_Predefined_Bit_Array_Match_Inequality => + -- Not in sequence. + null; + when others => + -- By default, info are not shared. + -- The exception is infos for implicit subprograms, + -- but they are always consecutive and not free twice + -- due to prev_info mechanism. + Free_Info (I); + end case; + when others => + -- By default, info are not shared. + Free_Info (I); + end case; + Prev_Info := Info; + end if; + end loop; + Node_Infos.Free; + end Free_Node_Infos; + + function Get_Type_Info (M : Mnode) return Type_Info_Acc is + begin + return M.M1.T; + end Get_Type_Info; + + function E2M (E : O_Enode; T : Type_Info_Acc; Kind : Object_Kind_Type) + return Mnode is + begin + return Mnode'(M1 => (State => Mstate_E, + Comp => T.Type_Mode in Type_Mode_Fat, + K => Kind, T => T, E => E, + Vtype => T.Ortho_Type (Kind), + Ptype => T.Ortho_Ptr_Type (Kind))); + end E2M; + + function Lv2M (L : O_Lnode; T : Type_Info_Acc; Kind : Object_Kind_Type) + return Mnode is + begin + return Mnode'(M1 => (State => Mstate_Lv, + Comp => T.Type_Mode in Type_Mode_Fat, + K => Kind, T => T, Lv => L, + Vtype => T.Ortho_Type (Kind), + Ptype => T.Ortho_Ptr_Type (Kind))); + end Lv2M; + + function Lv2M (L : O_Lnode; + Comp : Boolean; + Vtype : O_Tnode; + Ptype : O_Tnode; + T : Type_Info_Acc; Kind : Object_Kind_Type) + return Mnode is + begin + return Mnode'(M1 => (State => Mstate_Lv, + Comp => Comp, + K => Kind, T => T, Lv => L, + Vtype => Vtype, Ptype => Ptype)); + end Lv2M; + + function Lp2M (L : O_Lnode; T : Type_Info_Acc; Kind : Object_Kind_Type) + return Mnode is + begin + return Mnode'(M1 => (State => Mstate_Lp, + Comp => T.Type_Mode in Type_Mode_Fat, + K => Kind, T => T, Lp => L, + Vtype => T.Ortho_Type (Kind), + Ptype => T.Ortho_Ptr_Type (Kind))); + end Lp2M; + + function Lp2M (L : O_Lnode; + T : Type_Info_Acc; + Kind : Object_Kind_Type; + Vtype : O_Tnode; + Ptype : O_Tnode) + return Mnode is + begin + return Mnode'(M1 => (State => Mstate_Lp, + Comp => T.Type_Mode in Type_Mode_Fat, + K => Kind, T => T, Lp => L, + Vtype => Vtype, Ptype => Ptype)); + end Lp2M; + + function Lv2M (L : O_Lnode; + T : Type_Info_Acc; + Kind : Object_Kind_Type; + Vtype : O_Tnode; + Ptype : O_Tnode) + return Mnode is + begin + return Mnode'(M1 => (State => Mstate_Lv, + Comp => T.Type_Mode in Type_Mode_Fat, + K => Kind, T => T, Lv => L, + Vtype => Vtype, Ptype => Ptype)); + end Lv2M; + + function Dv2M (D : O_Dnode; + T : Type_Info_Acc; + Kind : Object_Kind_Type) + return Mnode is + begin + return Mnode'(M1 => (State => Mstate_Dv, + Comp => T.Type_Mode in Type_Mode_Fat, + K => Kind, T => T, Dv => D, + Vtype => T.Ortho_Type (Kind), + Ptype => T.Ortho_Ptr_Type (Kind))); + end Dv2M; + + function Dv2M (D : O_Dnode; + T : Type_Info_Acc; + Kind : Object_Kind_Type; + Vtype : O_Tnode; + Ptype : O_Tnode) + return Mnode is + begin + return Mnode'(M1 => (State => Mstate_Dv, + Comp => T.Type_Mode in Type_Mode_Fat, + K => Kind, T => T, Dv => D, + Vtype => Vtype, + Ptype => Ptype)); + end Dv2M; + + function Dp2M (D : O_Dnode; + T : Type_Info_Acc; + Kind : Object_Kind_Type; + Vtype : O_Tnode; + Ptype : O_Tnode) + return Mnode is + begin + return Mnode'(M1 => (State => Mstate_Dp, + Comp => T.Type_Mode in Type_Mode_Fat, + K => Kind, T => T, Dp => D, + Vtype => Vtype, Ptype => Ptype)); + end Dp2M; + + function Dp2M (D : O_Dnode; + T : Type_Info_Acc; + Kind : Object_Kind_Type) + return Mnode is + begin + return Mnode'(M1 => (State => Mstate_Dp, + Comp => T.Type_Mode in Type_Mode_Fat, + K => Kind, T => T, Dp => D, + Vtype => T.Ortho_Type (Kind), + Ptype => T.Ortho_Ptr_Type (Kind))); + end Dp2M; + + function M2Lv (M : Mnode) return O_Lnode is + begin + case M.M1.State is + when Mstate_E => + case Get_Type_Info (M).Type_Mode is + when Type_Mode_Thin => + -- Scalar to var is not possible. + -- FIXME: This is not coherent with the fact that this + -- conversion is possible when M is stabilized. + raise Internal_Error; + when Type_Mode_Fat => + return New_Access_Element (M.M1.E); + when Type_Mode_Unknown => + raise Internal_Error; + end case; + when Mstate_Lp => + return New_Acc_Value (M.M1.Lp); + when Mstate_Lv => + return M.M1.Lv; + when Mstate_Dp => + return New_Acc_Value (New_Obj (M.M1.Dp)); + when Mstate_Dv => + return New_Obj (M.M1.Dv); + when Mstate_Null + | Mstate_Bad => + raise Internal_Error; + end case; + end M2Lv; + + function M2Lp (M : Mnode) return O_Lnode is + begin + case M.M1.State is + when Mstate_E => + raise Internal_Error; + when Mstate_Lp => + return M.M1.Lp; + when Mstate_Dp => + return New_Obj (M.M1.Dp); + when Mstate_Lv => + if Get_Type_Info (M).Type_Mode in Type_Mode_Fat then + return New_Obj + (Create_Temp_Init (M.M1.Ptype, + New_Address (M.M1.Lv, M.M1.Ptype))); + else + raise Internal_Error; + end if; + when Mstate_Dv + | Mstate_Null + | Mstate_Bad => + raise Internal_Error; + end case; + end M2Lp; + + function M2Dp (M : Mnode) return O_Dnode is + begin + case M.M1.State is + when Mstate_Dp => + return M.M1.Dp; + when Mstate_Dv => + return Create_Temp_Init + (M.M1.Ptype, New_Address (New_Obj (M.M1.Dv), M.M1.Ptype)); + + when others => + raise Internal_Error; + end case; + end M2Dp; + + function M2Dv (M : Mnode) return O_Dnode is + begin + case M.M1.State is + when Mstate_Dv => + return M.M1.Dv; + when others => + raise Internal_Error; + end case; + end M2Dv; + + function T2M (Atype : Iir; Kind : Object_Kind_Type) return Mnode + is + T : Type_Info_Acc; + begin + T := Get_Info (Atype); + return Mnode'(M1 => (State => Mstate_Null, + Comp => T.Type_Mode in Type_Mode_Fat, + K => Kind, T => T, + Vtype => T.Ortho_Type (Kind), + Ptype => T.Ortho_Ptr_Type (Kind))); + end T2M; + + function M2E (M : Mnode) return O_Enode is + begin + case M.M1.State is + when Mstate_E => + return M.M1.E; + when Mstate_Lp => + case M.M1.T.Type_Mode is + when Type_Mode_Unknown => + raise Internal_Error; + when Type_Mode_Thin => + return New_Value (New_Acc_Value (M.M1.Lp)); + when Type_Mode_Fat => + return New_Value (M.M1.Lp); + end case; + when Mstate_Dp => + case M.M1.T.Type_Mode is + when Type_Mode_Unknown => + raise Internal_Error; + when Type_Mode_Thin => + return New_Value (New_Acc_Value (New_Obj (M.M1.Dp))); + when Type_Mode_Fat => + return New_Value (New_Obj (M.M1.Dp)); + end case; + when Mstate_Lv => + case M.M1.T.Type_Mode is + when Type_Mode_Unknown => + raise Internal_Error; + when Type_Mode_Thin => + return New_Value (M.M1.Lv); + when Type_Mode_Fat => + return New_Address (M.M1.Lv, M.M1.Ptype); + end case; + when Mstate_Dv => + case M.M1.T.Type_Mode is + when Type_Mode_Unknown => + raise Internal_Error; + when Type_Mode_Thin => + return New_Value (New_Obj (M.M1.Dv)); + when Type_Mode_Fat => + return New_Address (New_Obj (M.M1.Dv), M.M1.Ptype); + end case; + when Mstate_Bad + | Mstate_Null => + raise Internal_Error; + end case; + end M2E; + + function M2Addr (M : Mnode) return O_Enode is + begin + case M.M1.State is + when Mstate_Lp => + return New_Value (M.M1.Lp); + when Mstate_Dp => + return New_Value (New_Obj (M.M1.Dp)); + when Mstate_Lv => + return New_Address (M.M1.Lv, M.M1.Ptype); + when Mstate_Dv => + return New_Address (New_Obj (M.M1.Dv), M.M1.Ptype); + when Mstate_E => + if M.M1.Comp then + return M.M1.E; + else + raise Internal_Error; + end if; + when Mstate_Bad + | Mstate_Null => + raise Internal_Error; + end case; + end M2Addr; + +-- function Is_Null (M : Mnode) return Boolean is +-- begin +-- return M.M1.State = Mstate_Null; +-- end Is_Null; + + function Is_Stable (M : Mnode) return Boolean is + begin + case M.M1.State is + when Mstate_Dp + | Mstate_Dv => + return True; + when others => + return False; + end case; + end Is_Stable; + +-- function Varv2M +-- (Var : Var_Type; Vtype : Type_Info_Acc; Mode : Object_Kind_Type) +-- return Mnode is +-- begin +-- return Lv2M (Get_Var (Var), Vtype, Mode); +-- end Varv2M; + + function Varv2M (Var : Var_Type; + Var_Type : Type_Info_Acc; + Mode : Object_Kind_Type; + Vtype : O_Tnode; + Ptype : O_Tnode) + return Mnode is + begin + return Lv2M (Get_Var (Var), Var_Type, Mode, Vtype, Ptype); + end Varv2M; + + -- Convert a Lnode for a sub object to an MNODE. + function Lo2M (L : O_Lnode; Vtype : Type_Info_Acc; Mode : Object_Kind_Type) + return Mnode is + begin + case Vtype.Type_Mode is + when Type_Mode_Scalar + | Type_Mode_Acc + | Type_Mode_File + | Type_Mode_Fat_Array + | Type_Mode_Fat_Acc => + return Lv2M (L, Vtype, Mode); + when Type_Mode_Array + | Type_Mode_Record + | Type_Mode_Protected => + if Is_Complex_Type (Vtype) then + return Lp2M (L, Vtype, Mode); + else + return Lv2M (L, Vtype, Mode); + end if; + when Type_Mode_Unknown => + raise Internal_Error; + end case; + end Lo2M; + + function Lo2M (D : O_Dnode; Vtype : Type_Info_Acc; Mode : Object_Kind_Type) + return Mnode is + begin + case Vtype.Type_Mode is + when Type_Mode_Scalar + | Type_Mode_Acc + | Type_Mode_File + | Type_Mode_Fat_Array + | Type_Mode_Fat_Acc => + return Dv2M (D, Vtype, Mode); + when Type_Mode_Array + | Type_Mode_Record + | Type_Mode_Protected => + if Is_Complex_Type (Vtype) then + return Dp2M (D, Vtype, Mode); + else + return Dv2M (D, Vtype, Mode); + end if; + when Type_Mode_Unknown => + raise Internal_Error; + end case; + end Lo2M; + + package body Helpers is + procedure Inc_Var (V : O_Dnode) is + begin + New_Assign_Stmt (New_Obj (V), + New_Dyadic_Op (ON_Add_Ov, + New_Obj_Value (V), + New_Lit (Ghdl_Index_1))); + end Inc_Var; + + procedure Dec_Var (V : O_Dnode) is + begin + New_Assign_Stmt (New_Obj (V), + New_Dyadic_Op (ON_Sub_Ov, + New_Obj_Value (V), + New_Lit (Ghdl_Index_1))); + end Dec_Var; + + procedure Init_Var (V : O_Dnode) is + begin + New_Assign_Stmt (New_Obj (V), New_Lit (Ghdl_Index_0)); + end Init_Var; + + procedure Gen_Exit_When (Label : O_Snode; Cond : O_Enode) + is + If_Blk : O_If_Block; + begin + Start_If_Stmt (If_Blk, Cond); + New_Exit_Stmt (Label); + Finish_If_Stmt (If_Blk); + end Gen_Exit_When; + + -- Create a temporary variable. + type Temp_Level_Type; + type Temp_Level_Acc is access Temp_Level_Type; + type Temp_Level_Type is record + Prev : Temp_Level_Acc; + Level : Natural; + Id : Natural; + Emitted : Boolean; + Stack2_Mark : O_Dnode; + Transient_Types : Iir; + end record; + -- Current level. + Temp_Level : Temp_Level_Acc := null; + + -- List of unused temp_level_type structures. To be faster, they are + -- never deallocated. + Old_Level : Temp_Level_Acc := null; + + -- If set, emit comments for open_temp/close_temp. + Flag_Debug_Temp : constant Boolean := False; + + procedure Open_Temp + is + L : Temp_Level_Acc; + begin + if Old_Level /= null then + L := Old_Level; + Old_Level := L.Prev; + else + L := new Temp_Level_Type; + end if; + L.all := (Prev => Temp_Level, + Level => 0, + Id => 0, + Emitted => False, + Stack2_Mark => O_Dnode_Null, + Transient_Types => Null_Iir); + if Temp_Level /= null then + L.Level := Temp_Level.Level + 1; + end if; + Temp_Level := L; + if Flag_Debug_Temp then + New_Debug_Comment_Stmt + ("Open_Temp level " & Natural'Image (L.Level)); + end if; + end Open_Temp; + + procedure Open_Local_Temp is + begin + Open_Temp; + Temp_Level.Emitted := True; + end Open_Local_Temp; + + procedure Add_Transient_Type_In_Temp (Atype : Iir) + is + Type_Info : Type_Info_Acc; + begin + Type_Info := Get_Info (Atype); + Type_Info.Type_Transient_Chain := Temp_Level.Transient_Types; + Temp_Level.Transient_Types := Atype; + end Add_Transient_Type_In_Temp; + + -- Some expressions may be evaluated several times in different + -- contexts. Type info created for these expressions may not be + -- shared between these contexts. + procedure Destroy_Type_Info (Atype : Iir) + is + Type_Info : Type_Info_Acc; + begin + Type_Info := Get_Info (Atype); + Free_Type_Info (Type_Info); + Clear_Info (Atype); + end Destroy_Type_Info; + + procedure Release_Transient_Types (Chain : in out Iir) is + N_Atype : Iir; + begin + while Chain /= Null_Iir loop + N_Atype := Get_Info (Chain).Type_Transient_Chain; + Destroy_Type_Info (Chain); + Chain := N_Atype; + end loop; + end Release_Transient_Types; + + procedure Destroy_Local_Transient_Types is + begin + Release_Transient_Types (Temp_Level.Transient_Types); + end Destroy_Local_Transient_Types; + + function Has_Stack2_Mark return Boolean is + begin + return Temp_Level.Stack2_Mark /= O_Dnode_Null; + end Has_Stack2_Mark; + + procedure Stack2_Release + is + Constr : O_Assoc_List; + begin + if Temp_Level.Stack2_Mark /= O_Dnode_Null then + Start_Association (Constr, Ghdl_Stack2_Release); + New_Association (Constr, + New_Value (New_Obj (Temp_Level.Stack2_Mark))); + New_Procedure_Call (Constr); + Temp_Level.Stack2_Mark := O_Dnode_Null; + end if; + end Stack2_Release; + + procedure Close_Temp + is + L : Temp_Level_Acc; + begin + if Temp_Level = null then + -- OPEN_TEMP was not called. + raise Internal_Error; + end if; + if Flag_Debug_Temp then + New_Debug_Comment_Stmt + ("Close_Temp level " & Natural'Image (Temp_Level.Level)); + end if; + + if Temp_Level.Stack2_Mark /= O_Dnode_Null then + Stack2_Release; + end if; + if Temp_Level.Emitted then + Finish_Declare_Stmt; + end if; + + -- Destroy transcient types. + Release_Transient_Types (Temp_Level.Transient_Types); + + -- Unlink temp_level. + L := Temp_Level; + Temp_Level := L.Prev; + L.Prev := Old_Level; + Old_Level := L; + end Close_Temp; + + procedure Close_Local_Temp is + begin + Temp_Level.Emitted := False; + Close_Temp; + end Close_Local_Temp; + + procedure Free_Old_Temp + is + procedure Free is new Ada.Unchecked_Deallocation + (Temp_Level_Type, Temp_Level_Acc); + T : Temp_Level_Acc; + begin + if Temp_Level /= null then + raise Internal_Error; + end if; + loop + T := Old_Level; + exit when T = null; + Old_Level := Old_Level.Prev; + Free (T); + end loop; + end Free_Old_Temp; + + procedure Create_Temp_Stack2_Mark + is + Constr : O_Assoc_List; + begin + if Temp_Level.Stack2_Mark /= O_Dnode_Null then + -- Only the first mark in a region is registred. + -- The release operation frees the memory allocated after the + -- first mark. + return; + end if; + Temp_Level.Stack2_Mark := Create_Temp (Ghdl_Ptr_Type); + Start_Association (Constr, Ghdl_Stack2_Mark); + New_Assign_Stmt (New_Obj (Temp_Level.Stack2_Mark), + New_Function_Call (Constr)); + end Create_Temp_Stack2_Mark; + + function Create_Temp (Atype : O_Tnode) return O_Dnode + is + Str : String (1 .. 12); + Val : Natural; + Res : O_Dnode; + P : Natural; + begin + if Temp_Level = null then + -- OPEN_TEMP was never called. + raise Internal_Error; + -- This is an hack, just to allow array subtype to array type + -- conversion. + --New_Var_Decl + -- (Res, Create_Uniq_Identifier, O_Storage_Private, Atype); + --return Res; + else + if not Temp_Level.Emitted then + Temp_Level.Emitted := True; + Start_Declare_Stmt; + end if; + end if; + Val := Temp_Level.Id; + Temp_Level.Id := Temp_Level.Id + 1; + P := Str'Last; + loop + Str (P) := Character'Val (Val mod 10 + Character'Pos ('0')); + Val := Val / 10; + P := P - 1; + exit when Val = 0; + end loop; + Str (P) := '_'; + P := P - 1; + Val := Temp_Level.Level; + loop + Str (P) := Character'Val (Val mod 10 + Character'Pos ('0')); + Val := Val / 10; + P := P - 1; + exit when Val = 0; + end loop; + Str (P) := 'T'; + --Str (12) := Nul; + New_Var_Decl + (Res, Get_Identifier (Str (P .. Str'Last)), O_Storage_Local, Atype); + return Res; + end Create_Temp; + + function Create_Temp_Init (Atype : O_Tnode; Value : O_Enode) + return O_Dnode + is + Res : O_Dnode; + begin + Res := Create_Temp (Atype); + New_Assign_Stmt (New_Obj (Res), Value); + return Res; + end Create_Temp_Init; + + function Create_Temp_Ptr (Atype : O_Tnode; Name : O_Lnode) + return O_Dnode is + begin + return Create_Temp_Init (Atype, New_Address (Name, Atype)); + end Create_Temp_Ptr; + + -- Return a ghdl_index_type literal for NUM. + function New_Index_Lit (Num : Unsigned_64) return O_Cnode is + begin + return New_Unsigned_Literal (Ghdl_Index_Type, Num); + end New_Index_Lit; + + Uniq_Id : Natural := 0; + + function Create_Uniq_Identifier return Uniq_Identifier_String + is + Str : Uniq_Identifier_String; + Val : Natural; + begin + Str (1 .. 3) := "_UI"; + Val := Uniq_Id; + Uniq_Id := Uniq_Id + 1; + for I in reverse 4 .. 11 loop + Str (I) := N2hex (Val mod 16); + Val := Val / 16; + end loop; + return Str; + end Create_Uniq_Identifier; + + function Create_Uniq_Identifier return O_Ident is + begin + return Get_Identifier (Create_Uniq_Identifier); + end Create_Uniq_Identifier; + + end Helpers; + +end Trans; diff --git a/src/vhdl/translate/trans.ads b/src/vhdl/translate/trans.ads new file mode 100644 index 000000000..adf009104 --- /dev/null +++ b/src/vhdl/translate/trans.ads @@ -0,0 +1,1685 @@ +-- Iir to ortho translator. +-- Copyright (C) 2002 - 2014 Tristan Gingold +-- +-- GHDL is free software; you can redistribute it and/or modify it under +-- the terms of the GNU General Public License as published by the Free +-- Software Foundation; either version 2, or (at your option) any later +-- version. +-- +-- GHDL is distributed in the hope that it will be useful, but WITHOUT 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 +-- along with GCC; see the file COPYING. If not, write to the Free +-- Software Foundation, 59 Temple Place - Suite 330, Boston, MA +-- 02111-1307, USA. +with Ada.Unchecked_Deallocation; +with Interfaces; use Interfaces; +with Ortho_Nodes; use Ortho_Nodes; +with Ortho_Ident; use Ortho_Ident; +with Iirs; use Iirs; +with Types; use Types; + +package Trans is + + -- Ortho type node for STD.BOOLEAN. + Std_Boolean_Type_Node : O_Tnode; + Std_Boolean_True_Node : O_Cnode; + Std_Boolean_False_Node : O_Cnode; + -- Array of STD.BOOLEAN. + Std_Boolean_Array_Type : O_Tnode; + -- Std_ulogic indexed array of STD.Boolean. + Std_Ulogic_Boolean_Array_Type : O_Tnode; + -- Ortho type node for string template pointer. + Std_String_Ptr_Node : O_Tnode; + Std_String_Node : O_Tnode; + + -- Ortho type for std.standard.integer. + Std_Integer_Otype : O_Tnode; + + -- Ortho type for std.standard.real. + Std_Real_Otype : O_Tnode; + + -- Ortho type node for std.standard.time. + Std_Time_Otype : O_Tnode; + + -- Node for the variable containing the current filename. + Current_Filename_Node : O_Dnode := O_Dnode_Null; + Current_Library_Unit : Iir := Null_Iir; + + -- Global declarations. + Ghdl_Ptr_Type : O_Tnode; + Sizetype : O_Tnode; + Ghdl_I32_Type : O_Tnode; + Ghdl_I64_Type : O_Tnode; + Ghdl_Real_Type : O_Tnode; + -- Constant character. + Char_Type_Node : O_Tnode; + -- Array of char. + Chararray_Type : O_Tnode; + -- Pointer to array of char. + Char_Ptr_Type : O_Tnode; + -- Array of char ptr. + Char_Ptr_Array_Type : O_Tnode; + Char_Ptr_Array_Ptr_Type : O_Tnode; + + Ghdl_Index_Type : O_Tnode; + Ghdl_Index_0 : O_Cnode; + Ghdl_Index_1 : O_Cnode; + + -- Type for a file (this is in fact a index in a private table). + Ghdl_File_Index_Type : O_Tnode; + Ghdl_File_Index_Ptr_Type : O_Tnode; + + -- Record containing a len and string fields. + Ghdl_Str_Len_Type_Node : O_Tnode; + Ghdl_Str_Len_Type_Len_Field : O_Fnode; + Ghdl_Str_Len_Type_Str_Field : O_Fnode; + Ghdl_Str_Len_Ptr_Node : O_Tnode; + Ghdl_Str_Len_Array_Type_Node : O_Tnode; + + -- Location. + Ghdl_Location_Type_Node : O_Tnode; + Ghdl_Location_Filename_Node : O_Fnode; + Ghdl_Location_Line_Node : O_Fnode; + Ghdl_Location_Col_Node : O_Fnode; + Ghdl_Location_Ptr_Node : O_Tnode; + + -- Allocate memory for a block. + Ghdl_Alloc_Ptr : O_Dnode; + + -- bool type. + Ghdl_Bool_Type : O_Tnode; + type Enode_Boolean_Array is array (Boolean) of O_Cnode; + Ghdl_Bool_Nodes : Enode_Boolean_Array; + Ghdl_Bool_False_Node : O_Cnode renames Ghdl_Bool_Nodes (False); + Ghdl_Bool_True_Node : O_Cnode renames Ghdl_Bool_Nodes (True); + + Ghdl_Bool_Array_Type : O_Tnode; + Ghdl_Bool_Array_Ptr : O_Tnode; + + -- Comparaison type. + Ghdl_Compare_Type : O_Tnode; + Ghdl_Compare_Lt : O_Cnode; + Ghdl_Compare_Eq : O_Cnode; + Ghdl_Compare_Gt : O_Cnode; + + -- Dir type. + Ghdl_Dir_Type_Node : O_Tnode; + Ghdl_Dir_To_Node : O_Cnode; + Ghdl_Dir_Downto_Node : O_Cnode; + + -- Signals. + Ghdl_Scalar_Bytes : O_Tnode; + Ghdl_Signal_Type : O_Tnode; + Ghdl_Signal_Value_Field : O_Fnode; + Ghdl_Signal_Driving_Value_Field : O_Fnode; + Ghdl_Signal_Last_Value_Field : O_Fnode; + Ghdl_Signal_Last_Event_Field : O_Fnode; + Ghdl_Signal_Last_Active_Field : O_Fnode; + Ghdl_Signal_Event_Field : O_Fnode; + Ghdl_Signal_Active_Field : O_Fnode; + Ghdl_Signal_Has_Active_Field : O_Fnode; + + Ghdl_Signal_Ptr : O_Tnode; + Ghdl_Signal_Ptr_Ptr : O_Tnode; + + type Object_Kind_Type is (Mode_Value, Mode_Signal); + + -- Well known identifiers. + Wki_This : O_Ident; + Wki_Size : O_Ident; + Wki_Res : O_Ident; + Wki_Dir_To : O_Ident; + Wki_Dir_Downto : O_Ident; + Wki_Left : O_Ident; + Wki_Right : O_Ident; + Wki_Dir : O_Ident; + Wki_Length : O_Ident; + Wki_I : O_Ident; + Wki_Instance : O_Ident; + Wki_Arch_Instance : O_Ident; + Wki_Name : O_Ident; + Wki_Sig : O_Ident; + Wki_Obj : O_Ident; + Wki_Rti : O_Ident; + Wki_Parent : O_Ident; + Wki_Filename : O_Ident; + Wki_Line : O_Ident; + Wki_Lo : O_Ident; + Wki_Hi : O_Ident; + Wki_Mid : O_Ident; + Wki_Cmp : O_Ident; + Wki_Upframe : O_Ident; + Wki_Frame : O_Ident; + Wki_Val : O_Ident; + Wki_L_Len : O_Ident; + Wki_R_Len : O_Ident; + + -- ALLOCATION_KIND defines the type of memory storage. + -- ALLOC_STACK means the object is allocated on the local stack and + -- deallocated at the end of the function. + -- ALLOC_SYSTEM for object created during design elaboration and whose + -- life is infinite. + -- ALLOC_RETURN for unconstrained object returns by function. + -- ALLOC_HEAP for object created by new. + type Allocation_Kind is + (Alloc_Stack, Alloc_Return, Alloc_Heap, Alloc_System); + + package Chap10 is + -- There are three data storage kind: global, local or instance. + -- For example, a constant can have: + -- * a global storage when declared inside a package. This storage + -- can be accessed from any point. + -- * a local storage when declared in a subprogram. This storage + -- can be accessed from the subprogram, is created when the subprogram + -- is called and destroy when the subprogram exit. + -- * an instance storage when declared inside a process. This storage + -- can be accessed from the process via an instance pointer, is + -- created during elaboration. + --procedure Push_Global_Factory (Storage : O_Storage); + --procedure Pop_Global_Factory; + procedure Set_Global_Storage (Storage : O_Storage); + + -- Set the global scope handling. + Global_Storage : O_Storage; + + -- Scope for variables. This is used both to build instances (so it + -- contains the record type that contains objects declared in that + -- scope) and to use instances (it contains the path to access to these + -- objects). + type Var_Scope_Type is private; + + type Var_Scope_Acc is access all Var_Scope_Type; + for Var_Scope_Acc'Storage_Size use 0; + + Null_Var_Scope : constant Var_Scope_Type; + + type Var_Type is private; + Null_Var : constant Var_Type; + + -- Return the record type for SCOPE. + function Get_Scope_Type (Scope : Var_Scope_Type) return O_Tnode; + + -- Return the size for instances of SCOPE. + function Get_Scope_Size (Scope : Var_Scope_Type) return O_Cnode; + + -- Return True iff SCOPE is defined. + function Has_Scope_Type (Scope : Var_Scope_Type) return Boolean; + + -- Create an empty and incomplete scope type for SCOPE using NAME. + procedure Predeclare_Scope_Type (Scope : Var_Scope_Acc; Name : O_Ident); + + -- Declare a pointer PTR_TYPE with NAME to scope type SCOPE. + procedure Declare_Scope_Acc + (Scope : Var_Scope_Type; Name : O_Ident; Ptr_Type : out O_Tnode); + + -- Start to build an instance. + -- If INSTANCE_TYPE is not O_TNODE_NULL, it must be an uncompleted + -- record type, that will be completed. + procedure Push_Instance_Factory (Scope : Var_Scope_Acc); + + -- Manually add a field to the current instance being built. + function Add_Instance_Factory_Field (Name : O_Ident; Ftype : O_Tnode) + return O_Fnode; + + -- In the scope being built, add a field NAME that contain sub-scope + -- CHILD. CHILD is modified so that accesses to CHILD objects is done + -- via SCOPE. + procedure Add_Scope_Field + (Name : O_Ident; Child : in out Var_Scope_Type); + + -- Return the offset of field for CHILD in its parent scope. + function Get_Scope_Offset (Child : Var_Scope_Type; Otype : O_Tnode) + return O_Cnode; + + -- Finish the building of the current instance and return the type + -- built. + procedure Pop_Instance_Factory (Scope : Var_Scope_Acc); + + -- Create a new scope, in which variable are created locally + -- (ie, on the stack). Always created unlocked. + procedure Push_Local_Factory; + + -- Destroy a local scope. + procedure Pop_Local_Factory; + + -- Set_Scope defines how to access to variables of SCOPE. + -- Variables defined in SCOPE can be accessed via field SCOPE_FIELD + -- in scope SCOPE_PARENT. + procedure Set_Scope_Via_Field + (Scope : in out Var_Scope_Type; + Scope_Field : O_Fnode; Scope_Parent : Var_Scope_Acc); + + -- Variables defined in SCOPE can be accessed by dereferencing + -- field SCOPE_FIELD defined in SCOPE_PARENT. + procedure Set_Scope_Via_Field_Ptr + (Scope : in out Var_Scope_Type; + Scope_Field : O_Fnode; Scope_Parent : Var_Scope_Acc); + + -- Variables/scopes defined in SCOPE can be accessed via + -- dereference of parameter SCOPE_PARAM. + procedure Set_Scope_Via_Param_Ptr + (Scope : in out Var_Scope_Type; Scope_Param : O_Dnode); + + -- Variables/scopes defined in SCOPE can be accessed via DECL. + procedure Set_Scope_Via_Decl + (Scope : in out Var_Scope_Type; Decl : O_Dnode); + + -- Variables/scopes defined in SCOPE can be accessed by derefencing + -- VAR. + procedure Set_Scope_Via_Var_Ptr + (Scope : in out Var_Scope_Type; Var : Var_Type); + + -- No more accesses to SCOPE_TYPE are allowed. Scopes must be cleared + -- before being set. + procedure Clear_Scope (Scope : in out Var_Scope_Type); + + -- Reset the identifier. + type Id_Mark_Type is limited private; + type Local_Identifier_Type is private; + + procedure Reset_Identifier_Prefix; + procedure Push_Identifier_Prefix (Mark : out Id_Mark_Type; + Name : String; + Val : Iir_Int32 := 0); + procedure Push_Identifier_Prefix (Mark : out Id_Mark_Type; + Name : Name_Id; + Val : Iir_Int32 := 0); + procedure Push_Identifier_Prefix_Uniq (Mark : out Id_Mark_Type); + procedure Pop_Identifier_Prefix (Mark : in Id_Mark_Type); + + -- Save/restore the local identifier number; this is used by package + -- body, which has the same prefix as the package declaration, so it + -- must continue local identifiers numbers. + -- This is used by subprogram bodies too. + procedure Save_Local_Identifier (Id : out Local_Identifier_Type); + procedure Restore_Local_Identifier (Id : Local_Identifier_Type); + + -- Create an identifier from IIR node ID without the prefix. + function Create_Identifier_Without_Prefix (Id : Iir) + return O_Ident; + function Create_Identifier_Without_Prefix (Id : Name_Id; Str : String) + return O_Ident; + + -- Create an identifier from the current prefix. + function Create_Identifier return O_Ident; + + -- Create an identifier from IIR node ID with prefix. + function Create_Identifier (Id : Iir; Str : String := "") + return O_Ident; + function Create_Identifier + (Id : Iir; Val : Iir_Int32; Str : String := "") + return O_Ident; + function Create_Identifier (Id : Name_Id; Str : String := "") + return O_Ident; + -- Create a prefixed identifier from a string. + function Create_Identifier (Str : String) return O_Ident; + + -- Create an identifier for a variable. + -- IE, if the variable is global, prepend the prefix, + -- if the variable belong to an instance, no prefix is added. + type Var_Ident_Type is private; + function Create_Var_Identifier (Id : Iir) return Var_Ident_Type; + function Create_Var_Identifier (Id : String) return Var_Ident_Type; + function Create_Var_Identifier (Id : Iir; Str : String; Val : Natural) + return Var_Ident_Type; + function Create_Uniq_Identifier return Var_Ident_Type; + + -- Create variable NAME of type VTYPE in the current scope. + -- If the current scope is the global scope, then a variable is + -- created at the top level (using decl_global_storage). + -- If the current scope is not the global scope, then a field is added + -- to the current scope. + function Create_Var + (Name : Var_Ident_Type; + Vtype : O_Tnode; + Storage : O_Storage := Global_Storage) + return Var_Type; + + -- Create a global variable. + function Create_Global_Var + (Name : O_Ident; Vtype : O_Tnode; Storage : O_Storage) + return Var_Type; + + -- Create a global constant and initialize it to INITIAL_VALUE. + function Create_Global_Const + (Name : O_Ident; + Vtype : O_Tnode; + Storage : O_Storage; + Initial_Value : O_Cnode) + return Var_Type; + procedure Define_Global_Const (Const : in out Var_Type; Val : O_Cnode); + + -- Return the (real) reference to a variable created by Create_Var. + function Get_Var (Var : Var_Type) return O_Lnode; + + -- Return a reference to the instance of type ITYPE. + function Get_Instance_Ref (Scope : Var_Scope_Type) return O_Lnode; + + -- Return the address of the instance for block BLOCK. + function Get_Instance_Access (Block : Iir) return O_Enode; + + -- Return the storage for the variable VAR. + function Get_Alloc_Kind_For_Var (Var : Var_Type) return Allocation_Kind; + + -- Return TRUE iff VAR is stable, ie get_var (VAR) can be referenced + -- several times. + function Is_Var_Stable (Var : Var_Type) return Boolean; + + -- Used only to generate RTI. + function Is_Var_Field (Var : Var_Type) return Boolean; + function Get_Var_Offset (Var : Var_Type; Otype : O_Tnode) return O_Cnode; + function Get_Var_Label (Var : Var_Type) return O_Dnode; + + -- For package instantiation. + + -- Associate INST_SCOPE as the instantiated scope for ORIG_SCOPE. + procedure Push_Instantiate_Var_Scope + (Inst_Scope : Var_Scope_Acc; Orig_Scope : Var_Scope_Acc); + + -- Remove the association for INST_SCOPE. + procedure Pop_Instantiate_Var_Scope + (Inst_Scope : Var_Scope_Acc); + + -- Get the associated instantiated scope for SCOPE. + function Instantiated_Var_Scope (Scope : Var_Scope_Acc) + return Var_Scope_Acc; + + -- Create a copy of VAR using instantiated scope (if needed). + function Instantiate_Var (Var : Var_Type) return Var_Type; + + -- Create a copy of SCOPE using instantiated scope (if needed). + function Instantiate_Var_Scope (Scope : Var_Scope_Type) + return Var_Scope_Type; + private + type Local_Identifier_Type is new Natural; + type Id_Mark_Type is record + Len : Natural; + Local_Id : Local_Identifier_Type; + end record; + + type Var_Ident_Type is record + Id : O_Ident; + end record; + + -- An instance contains all the data (variable, signals, constant...) + -- which are declared by an entity and an architecture. + -- (An architecture inherits the data of its entity). + -- + -- The processes and implicit guard signals of an entity/architecture + -- are translated into functions. The first argument of these functions + -- is a pointer to the instance. + + type Inst_Build_Kind_Type is (Local, Global, Instance); + type Inst_Build_Type (Kind : Inst_Build_Kind_Type); + type Inst_Build_Acc is access Inst_Build_Type; + type Inst_Build_Type (Kind : Inst_Build_Kind_Type) is record + Prev : Inst_Build_Acc; + Prev_Id_Start : Natural; + case Kind is + when Local => + -- Previous global storage. + Prev_Global_Storage : O_Storage; + when Global => + null; + when Instance => + Scope : Var_Scope_Acc; + Elements : O_Element_List; + end case; + end record; + + -- Kind of variable: + -- VAR_NONE: the variable doesn't exist. + -- VAR_GLOBAL: the variable is a global variable (static or not). + -- VAR_LOCAL: the variable is on the stack. + -- VAR_SCOPE: the variable is in the instance record. + type Var_Kind is (Var_None, Var_Global, Var_Local, Var_Scope); + + type Var_Type (Kind : Var_Kind := Var_None) is record + case Kind is + when Var_None => + null; + when Var_Global + | Var_Local => + E : O_Dnode; + when Var_Scope => + I_Field : O_Fnode; + I_Scope : Var_Scope_Acc; + end case; + end record; + + Null_Var : constant Var_Type := (Kind => Var_None); + + type Var_Scope_Kind is (Var_Scope_None, + Var_Scope_Ptr, + Var_Scope_Decl, + Var_Scope_Field, + Var_Scope_Field_Ptr); + + type Var_Scope_Type (Kind : Var_Scope_Kind := Var_Scope_None) is record + Scope_Type : O_Tnode := O_Tnode_Null; + + case Kind is + when Var_Scope_None => + -- Not set, cannot be referenced. + null; + when Var_Scope_Ptr + | Var_Scope_Decl => + -- Instance for entity, architecture, component, subprogram, + -- resolver, process, guard function, PSL directive, PSL cover, + -- PSL assert, component instantiation elaborator + D : O_Dnode; + when Var_Scope_Field + | Var_Scope_Field_Ptr => + -- For an entity: the architecture. + -- For an architecture: ptr to a generate subblock. + -- For a subprogram: parent frame + Field : O_Fnode; + Up_Link : Var_Scope_Acc; + end case; + end record; + + Null_Var_Scope : constant Var_Scope_Type := (Scope_Type => O_Tnode_Null, + Kind => Var_Scope_None); + + end Chap10; + use Chap10; + + package Subprgs is + -- Subprograms instances. + -- + -- Subprograms declared inside entities, architecture, blocks + -- or processes (but not inside packages) may access to data declared + -- outside the subprogram (and this with a life longer than the + -- subprogram life). These data correspond to constants, variables, + -- files, signals or types. However these data are not shared between + -- instances of the same entity, architecture... Subprograms instances + -- is the way subprograms access to these data. + -- One subprogram instance corresponds to a record. + + -- Type to save an old instance builder. Subprograms may have at most + -- one instance. If they need severals (for example a protected + -- subprogram), the most recent one will have a reference to the + -- previous one. + type Subprg_Instance_Stack is limited private; + + -- Declare an instance to be added for subprograms. + -- DECL is the node for which the instance is created. This is used by + -- PUSH_SCOPE. + -- PTR_TYPE is a pointer to DECL_TYPE. + -- IDENT is an identifier for the interface. + -- The previous instance is stored to PREV. It must be restored with + -- Pop_Subprg_Instance. + -- Add_Subprg_Instance_Interfaces will add an interface of name IDENT + -- and type PTR_TYPE for every instance declared by + -- PUSH_SUBPRG_INSTANCE. + procedure Push_Subprg_Instance (Scope : Var_Scope_Acc; + Ptr_Type : O_Tnode; + Ident : O_Ident; + Prev : out Subprg_Instance_Stack); + + -- Since local subprograms has a direct access to its father interfaces, + -- they do not required instances interfaces. + -- These procedures are provided to temporarly disable the addition of + -- instances interfaces. Use Pop_Subpg_Instance to restore to the + -- previous state. + procedure Clear_Subprg_Instance (Prev : out Subprg_Instance_Stack); + + -- Revert of the previous subprogram. + -- Instances must be removed in opposite order they are added. + procedure Pop_Subprg_Instance (Ident : O_Ident; + Prev : Subprg_Instance_Stack); + + -- True iff there is currently a subprogram instance. + function Has_Current_Subprg_Instance return Boolean; + + -- Contains the subprogram interface for the instance. + type Subprg_Instance_Type is private; + Null_Subprg_Instance : constant Subprg_Instance_Type; + + -- Add interfaces during the creation of a subprogram. + procedure Add_Subprg_Instance_Interfaces + (Interfaces : in out O_Inter_List; Vars : out Subprg_Instance_Type); + + -- Add a field in the current factory that reference the current + -- instance. + procedure Add_Subprg_Instance_Field (Field : out O_Fnode); + + -- Associate values to the instance interface during invocation of a + -- subprogram. + procedure Add_Subprg_Instance_Assoc + (Assocs : in out O_Assoc_List; Vars : Subprg_Instance_Type); + + -- Get the value to be associated to the instance interface. + function Get_Subprg_Instance (Vars : Subprg_Instance_Type) + return O_Enode; + + -- True iff VARS is associated with an instance. + function Has_Subprg_Instance (Vars : Subprg_Instance_Type) + return Boolean; + + -- Assign the instance field FIELD of VAR. + procedure Set_Subprg_Instance_Field + (Var : O_Dnode; Field : O_Fnode; Vars : Subprg_Instance_Type); + + -- To be called at the beginning and end of a subprogram body creation. + -- Call PUSH_SCOPE for the subprogram intances. + procedure Start_Subprg_Instance_Use (Vars : Subprg_Instance_Type); + procedure Finish_Subprg_Instance_Use (Vars : Subprg_Instance_Type); + + -- Call Push_Scope to reference instance from FIELD. + procedure Start_Prev_Subprg_Instance_Use_Via_Field + (Prev : Subprg_Instance_Stack; Field : O_Fnode); + procedure Finish_Prev_Subprg_Instance_Use_Via_Field + (Prev : Subprg_Instance_Stack; Field : O_Fnode); + + -- Same as above, but for IIR. + procedure Create_Subprg_Instance (Interfaces : in out O_Inter_List; + Subprg : Iir); + + procedure Start_Subprg_Instance_Use (Subprg : Iir); + procedure Finish_Subprg_Instance_Use (Subprg : Iir); + + function Instantiate_Subprg_Instance (Inst : Subprg_Instance_Type) + return Subprg_Instance_Type; + private + type Subprg_Instance_Type is record + Inter : O_Dnode; + Inter_Type : O_Tnode; + Scope : Var_Scope_Acc; + end record; + Null_Subprg_Instance : constant Subprg_Instance_Type := + (O_Dnode_Null, O_Tnode_Null, null); + + type Subprg_Instance_Stack is record + Scope : Var_Scope_Acc; + Ptr_Type : O_Tnode; + Ident : O_Ident; + end record; + + Null_Subprg_Instance_Stack : constant Subprg_Instance_Stack := + (null, O_Tnode_Null, O_Ident_Nul); + + Current_Subprg_Instance : Subprg_Instance_Stack := + Null_Subprg_Instance_Stack; + end Subprgs; + + type Ortho_Info_Kind is + ( + Kind_Type, + Kind_Incomplete_Type, + Kind_Index, + Kind_Expr, + Kind_Subprg, + Kind_Object, + Kind_Alias, + Kind_Iterator, + Kind_Interface, + Kind_Disconnect, + Kind_Process, + Kind_Psl_Directive, + Kind_Loop, + Kind_Block, + Kind_Component, + Kind_Field, + Kind_Package, + Kind_Package_Instance, + Kind_Config, + Kind_Assoc, + Kind_Str_Choice, + Kind_Design_File, + Kind_Library + ); + + type Ortho_Info_Type_Kind is + ( + Kind_Type_Scalar, + Kind_Type_Array, + Kind_Type_Record, + Kind_Type_File, + Kind_Type_Protected + ); + type O_Tnode_Array is array (Object_Kind_Type) of O_Tnode; + type O_Fnode_Array is array (Object_Kind_Type) of O_Fnode; + + type Rti_Depth_Type is new Natural range 0 .. 255; + + type Ortho_Info_Type_Type (Kind : Ortho_Info_Type_Kind := Kind_Type_Scalar) + is record + -- For all types: + -- This is the maximum depth of RTI, that is the max of the depth of + -- the type itself and every types it depends on. + Rti_Max_Depth : Rti_Depth_Type; + + case Kind is + when Kind_Type_Scalar => + -- For scalar types: + -- True if no need to check against low/high bound. + Nocheck_Low : Boolean := False; + Nocheck_Hi : Boolean := False; + + -- Ortho type for the range record type. + Range_Type : O_Tnode; + + -- Ortho type for an access to the range record type. + Range_Ptr_Type : O_Tnode; + + -- Tree for the range record declaration. + Range_Var : Var_Type; + + -- Fields of TYPE_RANGE_TYPE. + Range_Left : O_Fnode; + Range_Right : O_Fnode; + Range_Dir : O_Fnode; + Range_Length : O_Fnode; + + when Kind_Type_Array => + Base_Type : O_Tnode_Array; + Base_Ptr_Type : O_Tnode_Array; + Bounds_Type : O_Tnode; + Bounds_Ptr_Type : O_Tnode; + + Base_Field : O_Fnode_Array; + Bounds_Field : O_Fnode_Array; + + -- True if the array bounds are static. + Static_Bounds : Boolean; + + -- Variable containing the bounds for a constrained array. + Array_Bounds : Var_Type; + + -- Variable containing a 1 length bound for unidimensional + -- unconstrained arrays. + Array_1bound : Var_Type; + + -- Variable containing the description for each index. + Array_Index_Desc : Var_Type; + + when Kind_Type_Record => + -- Variable containing the description for each element. + Record_El_Desc : Var_Type; + + when Kind_Type_File => + -- Constant containing the signature of the file. + File_Signature : O_Dnode; + + when Kind_Type_Protected => + Prot_Scope : aliased Var_Scope_Type; + + -- Init procedure for the protected type. + Prot_Init_Subprg : O_Dnode; + Prot_Init_Instance : Subprgs.Subprg_Instance_Type; + -- Final procedure. + Prot_Final_Subprg : O_Dnode; + Prot_Final_Instance : Subprgs.Subprg_Instance_Type; + -- The outer instance, if any. + Prot_Subprg_Instance_Field : O_Fnode; + -- The LOCK field in the object type + Prot_Lock_Field : O_Fnode; + end case; + end record; + +-- Ortho_Info_Type_Scalar_Init : constant Ortho_Info_Type_Type := +-- (Kind => Kind_Type_Scalar, +-- Range_Type => O_Tnode_Null, +-- Range_Ptr_Type => O_Tnode_Null, +-- Range_Var => null, +-- Range_Left => O_Fnode_Null, +-- Range_Right => O_Fnode_Null, +-- Range_Dir => O_Fnode_Null, +-- Range_Length => O_Fnode_Null); + + Ortho_Info_Type_Array_Init : constant Ortho_Info_Type_Type := + (Kind => Kind_Type_Array, + Rti_Max_Depth => 0, + Base_Type => (O_Tnode_Null, O_Tnode_Null), + Base_Ptr_Type => (O_Tnode_Null, O_Tnode_Null), + Bounds_Type => O_Tnode_Null, + Bounds_Ptr_Type => O_Tnode_Null, + Base_Field => (O_Fnode_Null, O_Fnode_Null), + Bounds_Field => (O_Fnode_Null, O_Fnode_Null), + Static_Bounds => False, + Array_Bounds => Null_Var, + Array_1bound => Null_Var, + Array_Index_Desc => Null_Var); + + Ortho_Info_Type_Record_Init : constant Ortho_Info_Type_Type := + (Kind => Kind_Type_Record, + Rti_Max_Depth => 0, + Record_El_Desc => Null_Var); + + Ortho_Info_Type_File_Init : constant Ortho_Info_Type_Type := + (Kind => Kind_Type_File, + Rti_Max_Depth => 0, + File_Signature => O_Dnode_Null); + + Ortho_Info_Type_Prot_Init : constant Ortho_Info_Type_Type := + (Kind => Kind_Type_Protected, + Rti_Max_Depth => 0, + Prot_Scope => Null_Var_Scope, + Prot_Init_Subprg => O_Dnode_Null, + Prot_Init_Instance => Subprgs.Null_Subprg_Instance, + Prot_Final_Subprg => O_Dnode_Null, + Prot_Subprg_Instance_Field => O_Fnode_Null, + Prot_Final_Instance => Subprgs.Null_Subprg_Instance, + Prot_Lock_Field => O_Fnode_Null); + + -- Mode of the type; roughly speaking, this corresponds to its size + -- (for scalars) or its layout (for composite types). + -- Used to select library subprograms for signals. + type Type_Mode_Type is + ( + -- Unknown mode. + Type_Mode_Unknown, + -- Boolean type, with 2 elements. + Type_Mode_B1, + -- Enumeration with at most 256 elements. + Type_Mode_E8, + -- Enumeration with more than 256 elements. + Type_Mode_E32, + -- Integer types. + Type_Mode_I32, + Type_Mode_I64, + -- Physical types. + Type_Mode_P32, + Type_Mode_P64, + -- Floating point type. + Type_Mode_F64, + -- File type. + Type_Mode_File, + -- Thin access. + Type_Mode_Acc, + + -- Fat access. + Type_Mode_Fat_Acc, + + -- Record. + Type_Mode_Record, + -- Protected type + Type_Mode_Protected, + -- Constrained array type (length is known at compile-time). + Type_Mode_Array, + -- Fat array type (used for unconstrained array). + Type_Mode_Fat_Array); + + subtype Type_Mode_Scalar is Type_Mode_Type + range Type_Mode_B1 .. Type_Mode_F64; + + subtype Type_Mode_Non_Composite is Type_Mode_Type + range Type_Mode_B1 .. Type_Mode_Fat_Acc; + + -- Composite types, with the vhdl meaning: record and arrays. + subtype Type_Mode_Composite is Type_Mode_Type + range Type_Mode_Record .. Type_Mode_Fat_Array; + + -- Array types. + subtype Type_Mode_Arrays is Type_Mode_Type range + Type_Mode_Array .. Type_Mode_Fat_Array; + + -- Thin types, ie types whose length is a scalar. + subtype Type_Mode_Thin is Type_Mode_Type + range Type_Mode_B1 .. Type_Mode_Acc; + + -- Fat types, ie types whose length is longer than a scalar. + subtype Type_Mode_Fat is Type_Mode_Type + range Type_Mode_Fat_Acc .. Type_Mode_Fat_Array; + + -- These parameters are passed by value, ie the argument of the subprogram + -- is the value of the object. + subtype Type_Mode_By_Value is Type_Mode_Type + range Type_Mode_B1 .. Type_Mode_Acc; + + -- These parameters are passed by copy, ie a copy of the object is created + -- and the reference of the copy is passed. If the object is not + -- modified by the subprogram, the object could be passed by reference. + subtype Type_Mode_By_Copy is Type_Mode_Type + range Type_Mode_Fat_Acc .. Type_Mode_Fat_Acc; + + -- The parameters are passed by reference, ie the argument of the + -- subprogram is an address to the object. + subtype Type_Mode_By_Ref is Type_Mode_Type + range Type_Mode_Record .. Type_Mode_Fat_Array; + + -- Additional informations for a resolving function. + type Subprg_Resolv_Info is record + Resolv_Func : O_Dnode; + -- Parameter nodes. + Var_Instance : Subprgs.Subprg_Instance_Type; + + -- Signals + Var_Vals : O_Dnode; + -- Driving vector. + Var_Vec : O_Dnode; + -- Length of Vector. + Var_Vlen : O_Dnode; + Var_Nbr_Drv : O_Dnode; + Var_Nbr_Ports : O_Dnode; + end record; + type Subprg_Resolv_Info_Acc is access Subprg_Resolv_Info; + + -- Complex types. + -- + -- A complex type is not a VHDL notion, but a translation notion. + -- A complex type is a composite type whose size is not known at compile + -- type. This happends in VHDL because a bound can be globally static. + -- Therefore, the length of an array may not be known at compile type, + -- and this propagates to composite types (record and array) if they + -- have such an element. This is different from unconstrained arrays. + -- + -- This occurs frequently in VHDL, and could even happen within + -- subprograms. + -- + -- Such types are always dynamically allocated (on the stack or on the + -- heap). They must be continuous in memory so that they could be copied + -- via memcpy/memmove. + -- + -- At runtime, the size of such type is computed. A builder procedure + -- is also created to setup inner pointers. This builder procedure should + -- be called at initialization, but also after a copy. + -- + -- Example: + -- 1) subtype bv_type is bit_vector (l to h); + -- variable a : bv_type + -- + -- This is represented by a pointer to an array of bit. No need for + -- builder procedure, as the element type is not complex. But there + -- is a size variable for the size of bv_type + -- + -- 2) type rec1_type is record + -- f1 : integer; + -- f2 : bv_type; + -- end record; + -- + -- This is represented by a pointer to a record. The 'f2' field is + -- an offset to an array of bit. The size of the object is the size + -- of the record (with f2 as a pointer) + the size of bv_type. + -- The alinment of the object is the maximum alignment of its sub- + -- objects: rec1 and bv_type. + -- A builder procedure is needed to initialize the 'f2' field. + -- The memory layout is: + -- +--------------+ + -- | rec1: f1 | + -- | f2 |---+ + -- +--------------+ | + -- | bv_type |<--+ + -- | ... | + -- +--------------+ + -- + -- 3) type rec2_type is record + -- g1: rec1_type; + -- g2: bv_type; + -- g3: bv_type; + -- end record; + -- + -- This is represented by a pointer to a record. All the three fields + -- are offset (relative to rec2). Alignment is the maximum alignment of + -- the sub-objects (rec2, rec1, bv_type x 3). + -- The memory layout is: + -- +--------------+ + -- | rec2: g1 |---+ + -- | g2 |---|---+ + -- | g3 |---|---|---+ + -- +--------------+ | | | + -- | rec1: f1 |<--+ | | + -- | f2 |---+ | | + -- +--------------+ | | | + -- | bv_type (f2) |<--+ | | + -- | ... | | | + -- +--------------+ | | + -- | bv_type (g2) |<------+ | + -- | ... | | + -- +--------------+ | + -- | bv_type (g3) |<----------+ + -- | ... | + -- +--------------+ + -- + -- 4) type bv_arr_type is array (natural range <>) of bv_type; + -- arr2 : bv_arr_type (1 to 4) + -- + -- This should be represented by a pointer to bv_type. + -- The memory layout is: + -- +--------------+ + -- | bv_type (1) | + -- | ... | + -- +--------------+ + -- | bv_type (2) | + -- | ... | + -- +--------------+ + -- | bv_type (3) | + -- | ... | + -- +--------------+ + -- | bv_type (4) | + -- | ... | + -- +--------------+ + + -- Additional info for complex types. + type Complex_Type_Info is record + -- Variable containing the size of the type. + -- This is defined only for types whose size is only known at + -- running time (and not a compile-time). + Size_Var : Var_Type; + + -- Variable containing the alignment of the type. + -- Only defined for recods and for Mode_Value. + -- Note: this is not optimal, because the alignment could be computed + -- at compile time, but there is no way to do that with ortho (no + -- operation on constants). Furthermore, the alignment is independent + -- of the instance, so there could be one global variable. But this + -- doesn't fit in the whole machinery (in particular, there is no + -- easy way to compute it once). As the overhead is very low, no need + -- to bother with this issue. + Align_Var : Var_Type; + + Builder_Need_Func : Boolean; + + -- Parameters for type builders. + -- NOTE: this is only set for types (and *not* for subtypes). + Builder_Instance : Subprgs.Subprg_Instance_Type; + Builder_Base_Param : O_Dnode; + Builder_Bound_Param : O_Dnode; + Builder_Func : O_Dnode; + end record; + type Complex_Type_Arr_Info is array (Object_Kind_Type) of Complex_Type_Info; + type Complex_Type_Info_Acc is access Complex_Type_Arr_Info; + procedure Free_Complex_Type_Info is new Ada.Unchecked_Deallocation + (Complex_Type_Arr_Info, Complex_Type_Info_Acc); + + type Assoc_Conv_Info is record + -- The subprogram created to do the conversion. + Subprg : O_Dnode; + -- The local base block + Instance_Block : Iir; + -- and its address. + Instance_Field : O_Fnode; + -- The instantiated entity (if any). + Instantiated_Entity : Iir; + -- and its address. + Instantiated_Field : O_Fnode; + In_Field : O_Fnode; + Out_Field : O_Fnode; + Record_Type : O_Tnode; + Record_Ptr_Type : O_Tnode; + end record; + + type Direct_Driver_Type is record + Sig : Iir; + Var : Var_Type; + end record; + type Direct_Driver_Arr is array (Natural range <>) of Direct_Driver_Type; + type Direct_Drivers_Acc is access Direct_Driver_Arr; + + type Ortho_Info_Type; + type Ortho_Info_Acc is access Ortho_Info_Type; + + type Ortho_Info_Type (Kind : Ortho_Info_Kind) is record + case Kind is + when Kind_Type => + -- Mode of the type. + Type_Mode : Type_Mode_Type := Type_Mode_Unknown; + + -- If true, the type is (still) incomplete. + Type_Incomplete : Boolean := False; + + -- For array only. True if the type is constrained with locally + -- static bounds. May have non locally-static bounds in some + -- of its sub-element (ie being a complex type). + Type_Locally_Constrained : Boolean := False; + + -- Additionnal info for complex types. + C : Complex_Type_Info_Acc := null; + + -- Ortho node which represents the type. + -- Type -> Ortho type + -- scalar -> scalar + -- record (complex or not) -> record + -- constrained non-complex array -> constrained array + -- constrained complex array -> the element + -- unconstrained array -> fat pointer + -- access to unconstrained array -> fat pointer + -- access (others) -> access + -- file -> file_index_type + -- protected -> instance + Ortho_Type : O_Tnode_Array; + + -- Ortho pointer to the type. This is always an access to the + -- ortho_type. + Ortho_Ptr_Type : O_Tnode_Array; + + -- Chain of temporary types to be destroyed at end of scope. + Type_Transient_Chain : Iir := Null_Iir; + + -- More info according to the type. + T : Ortho_Info_Type_Type; + + -- Run-time information. + Type_Rti : O_Dnode := O_Dnode_Null; + + when Kind_Incomplete_Type => + -- The declaration of the incomplete type. + Incomplete_Type : Iir; + Incomplete_Array : Ortho_Info_Acc; + + when Kind_Index => + -- Field declaration for array dimension. + Index_Field : O_Fnode; + + when Kind_Expr => + -- Ortho tree which represents the expression, used for + -- enumeration literals. + Expr_Node : O_Cnode; + + when Kind_Subprg => + -- True if the function can return a value stored in the secondary + -- stack. In this case, the caller must deallocate the area + -- allocated by the callee when the value was used. + Use_Stack2 : Boolean := False; + + -- Subprogram declaration node. + Ortho_Func : O_Dnode; + + -- For a function: + -- If the return value is not composite, then this field + -- must be O_DNODE_NULL. + -- If the return value is a composite type, then the caller must + -- give to the callee an area to put the result. This area is + -- given via an (hidden to the user) interface. Furthermore, + -- the function is translated into a procedure. + -- For a procedure: + -- If there are copy-out interfaces, they are gathered in a + -- record and a pointer to the record is passed to the + -- procedure. RES_INTERFACE is the interface for this pointer. + Res_Interface : O_Dnode := O_Dnode_Null; + + -- Field in the frame for a pointer to the RESULT structure. + Res_Record_Var : Var_Type := Null_Var; + + -- For a subprogram with a result interface: + -- Type definition for the record. + Res_Record_Type : O_Tnode := O_Tnode_Null; + -- Type definition for access to the record. + Res_Record_Ptr : O_Tnode := O_Tnode_Null; + + -- Access to the declarations within this subprogram. + Subprg_Frame_Scope : aliased Var_Scope_Type; + + -- Instances for the subprograms. + Subprg_Instance : Subprgs.Subprg_Instance_Type := + Subprgs.Null_Subprg_Instance; + + Subprg_Resolv : Subprg_Resolv_Info_Acc := null; + + -- Local identifier number, set by spec, continued by body. + Subprg_Local_Id : Local_Identifier_Type; + + -- If set, return should be converted into exit out of the + -- SUBPRG_EXIT loop and the value should be assigned to + -- SUBPRG_RESULT, if any. + Subprg_Exit : O_Snode := O_Snode_Null; + Subprg_Result : O_Dnode := O_Dnode_Null; + + when Kind_Object => + -- For constants: set when the object is defined as a constant. + Object_Static : Boolean; + -- The object itself. + Object_Var : Var_Type; + -- Direct driver for signal (if any). + Object_Driver : Var_Type := Null_Var; + -- RTI constant for the object. + Object_Rti : O_Dnode := O_Dnode_Null; + -- Function to compute the value of object (used for implicit + -- guard signal declaration). + Object_Function : O_Dnode := O_Dnode_Null; + + when Kind_Alias => + Alias_Var : Var_Type; + Alias_Kind : Object_Kind_Type; + + when Kind_Iterator => + Iterator_Var : Var_Type; + + when Kind_Interface => + -- Ortho declaration for the interface. If not null, there is + -- a corresponding ortho parameter for the interface. While + -- translating nested subprograms (that are unnested), + -- Interface_Field may be set to the corresponding field in the + -- FRAME record. So: + -- Node: not null, Field: null: parameter + -- Node: not null, Field: not null: parameter with a copy in + -- the FRAME record. + -- Node: null, Field: null: not possible + -- Node: null, Field: not null: field in RESULT record + Interface_Node : O_Dnode := O_Dnode_Null; + -- Field of the result record for copy-out arguments of procedure. + -- In that case, Interface_Node must be null. + Interface_Field : O_Fnode; + -- Type of the interface. + Interface_Type : O_Tnode; + + when Kind_Disconnect => + -- Variable which contains the time_expression of the + -- disconnection specification + Disconnect_Var : Var_Type; + + when Kind_Process => + Process_Scope : aliased Var_Scope_Type; + + -- Subprogram for the process. + Process_Subprg : O_Dnode; + + -- List of drivers if Flag_Direct_Drivers. + Process_Drivers : Direct_Drivers_Acc := null; + + -- RTI for the process. + Process_Rti_Const : O_Dnode := O_Dnode_Null; + + when Kind_Psl_Directive => + Psl_Scope : aliased Var_Scope_Type; + + -- Procedure for the state machine. + Psl_Proc_Subprg : O_Dnode; + -- Procedure for finalization. Handles EOS. + Psl_Proc_Final_Subprg : O_Dnode; + + -- Length of the state vector. + Psl_Vect_Len : Natural; + + -- Type of the state vector. + Psl_Vect_Type : O_Tnode; + + -- State vector variable. + Psl_Vect_Var : Var_Type; + + -- Boolean variable (for cover) + Psl_Bool_Var : Var_Type; + + -- RTI for the process. + Psl_Rti_Const : O_Dnode := O_Dnode_Null; + + when Kind_Loop => + -- Labels for the loop. + -- Used for exit/next from while-loop, and to exit from for-loop. + Label_Exit : O_Snode; + -- Used to next from for-loop, with an exit statment. + Label_Next : O_Snode; + + when Kind_Block => + -- Access to declarations of this block. + Block_Scope : aliased Var_Scope_Type; + + -- Instance type (ortho record) for declarations contained in the + -- block/entity/architecture. + Block_Decls_Ptr_Type : O_Tnode; + + -- For Entity: field in the instance type containing link to + -- parent. + -- For an instantiation: link in the parent block to the instance. + Block_Link_Field : O_Fnode; + + -- For an entity: must be o_fnode_null. + -- For an architecture: the entity field. + -- For a block, a component or a generate block: field in the + -- parent instance which contains the declarations for this + -- block. + Block_Parent_Field : O_Fnode; + + -- For a generate block: field in the block providing a chain to + -- the previous block (note: this may not be the parent, but + -- is a parent). + Block_Origin_Field : O_Fnode; + -- For an iterative block: boolean field set when the block + -- is configured. This is used to check if the block was already + -- configured since index and slice are not compelled to be + -- locally static. + Block_Configured_Field : O_Fnode; + + -- For iterative generate block: array of instances. + Block_Decls_Array_Type : O_Tnode; + Block_Decls_Array_Ptr_Type : O_Tnode; + + -- Subprogram which elaborates the block (for entity or arch). + Block_Elab_Subprg : O_Dnode; + -- Size of the block instance. + Block_Instance_Size : O_Dnode; + + -- Only for an entity: procedure that elaborate the packages this + -- units depend on. That must be done before elaborating the + -- entity and before evaluating default expressions in generics. + Block_Elab_Pkg_Subprg : O_Dnode; + + -- RTI constant for the block. + Block_Rti_Const : O_Dnode := O_Dnode_Null; + + when Kind_Component => + -- How to access to component interfaces. + Comp_Scope : aliased Var_Scope_Type; + + -- Instance for the component. + Comp_Ptr_Type : O_Tnode; + -- Field containing a pointer to the instance link. + Comp_Link : O_Fnode; + -- RTI for the component. + Comp_Rti_Const : O_Dnode; + + when Kind_Config => + -- Subprogram that configure the block. + Config_Subprg : O_Dnode; + + when Kind_Field => + -- Node for a record element declaration. + Field_Node : O_Fnode_Array := (O_Fnode_Null, O_Fnode_Null); + + when Kind_Package => + -- Subprogram which elaborate the package spec/body. + -- External units should call the body elaborator. + -- The spec elaborator is called only from the body elaborator. + Package_Elab_Spec_Subprg : O_Dnode; + Package_Elab_Body_Subprg : O_Dnode; + + -- Instance for the elaborators. + Package_Elab_Spec_Instance : Subprgs.Subprg_Instance_Type; + Package_Elab_Body_Instance : Subprgs.Subprg_Instance_Type; + + -- Variable set to true when the package is elaborated. + Package_Elab_Var : Var_Type; + + -- RTI constant for the package. + Package_Rti_Const : O_Dnode; + + -- Access to declarations of the spec. + Package_Spec_Scope : aliased Var_Scope_Type; + + -- Instance type for uninstantiated package + Package_Spec_Ptr_Type : O_Tnode; + + Package_Body_Scope : aliased Var_Scope_Type; + Package_Body_Ptr_Type : O_Tnode; + + -- Field to the spec within the body. + Package_Spec_Field : O_Fnode; + + -- Local id, set by package declaration, continued by package + -- body. + Package_Local_Id : Local_Identifier_Type; + + when Kind_Package_Instance => + -- The variables containing the instance. There are two variables + -- for interface package: one for the spec, one for the body. + -- For package instantiation, only the variable for the body is + -- used. The variable for spec is added so that packages with + -- package interfaces don't need to know the body of their + -- interfaces. + Package_Instance_Spec_Var : Var_Type; + Package_Instance_Body_Var : Var_Type; + + -- Elaboration procedure for the instance. + Package_Instance_Elab_Subprg : O_Dnode; + + Package_Instance_Spec_Scope : aliased Var_Scope_Type; + Package_Instance_Body_Scope : aliased Var_Scope_Type; + + when Kind_Assoc => + -- Association informations. + Assoc_In : Assoc_Conv_Info; + Assoc_Out : Assoc_Conv_Info; + + when Kind_Str_Choice => + -- List of choices, used to sort them. + Choice_Chain : Ortho_Info_Acc; + -- Association index. + Choice_Assoc : Natural; + -- Corresponding choice simple expression. + Choice_Expr : Iir; + -- Corresponding choice. + Choice_Parent : Iir; + + when Kind_Design_File => + Design_Filename : O_Dnode; + + when Kind_Library => + Library_Rti_Const : O_Dnode; + end case; + end record; + + procedure Unchecked_Deallocation is new Ada.Unchecked_Deallocation + (Name => Ortho_Info_Acc, Object => Ortho_Info_Type); + + subtype Type_Info_Acc is Ortho_Info_Acc (Kind_Type); + subtype Incomplete_Type_Info_Acc is Ortho_Info_Acc (Kind_Incomplete_Type); + subtype Index_Info_Acc is Ortho_Info_Acc (Kind_Index); + subtype Subprg_Info_Acc is Ortho_Info_Acc (Kind_Subprg); + subtype Object_Info_Acc is Ortho_Info_Acc (Kind_Object); + subtype Alias_Info_Acc is Ortho_Info_Acc (Kind_Alias); + subtype Proc_Info_Acc is Ortho_Info_Acc (Kind_Process); + subtype Psl_Info_Acc is Ortho_Info_Acc (Kind_Psl_Directive); + subtype Loop_Info_Acc is Ortho_Info_Acc (Kind_Loop); + subtype Block_Info_Acc is Ortho_Info_Acc (Kind_Block); + subtype Comp_Info_Acc is Ortho_Info_Acc (Kind_Component); + subtype Field_Info_Acc is Ortho_Info_Acc (Kind_Field); + subtype Config_Info_Acc is Ortho_Info_Acc (Kind_Config); + subtype Assoc_Info_Acc is Ortho_Info_Acc (Kind_Assoc); + subtype Inter_Info_Acc is Ortho_Info_Acc (Kind_Interface); + subtype Design_File_Info_Acc is Ortho_Info_Acc (Kind_Design_File); + subtype Library_Info_Acc is Ortho_Info_Acc (Kind_Library); + + -- In order to simplify the handling of Enode/Lnode, let's introduce + -- Mnode (yes, another node). + -- An Mnode is a typed union, containing either an Lnode or a Enode. + -- See Mstate for a description of the union. + -- The real data is contained insisde a record, so that the discriminant + -- can be changed. + type Mnode; + + -- State of an Mmode. + type Mstate is + ( + -- The Mnode contains an Enode, which can be either a value or a + -- pointer. + -- This Mnode can be used only once. + Mstate_E, + + -- The Mnode contains an Lnode representing a value. + -- This Lnode can be used only once. + Mstate_Lv, + + -- The Mnode contains an Lnode representing a pointer. + -- This Lnode can be used only once. + Mstate_Lp, + + -- The Mnode contains an Dnode for a variable representing a value. + -- This Dnode may be used several times. + Mstate_Dv, + + -- The Mnode contains an Dnode for a variable representing a pointer. + -- This Dnode may be used several times. + Mstate_Dp, + + -- Null Mnode. + Mstate_Null, + + -- The Mnode is invalid (such as already used). + Mstate_Bad); + + type Mnode1 (State : Mstate := Mstate_Bad) is record + -- True if the object is composite (its value cannot be read directly). + Comp : Boolean; + + -- Additionnal informations about the objects: kind and type. + K : Object_Kind_Type; + T : Type_Info_Acc; + + -- Ortho type of the object. + Vtype : O_Tnode; + + -- Type for a pointer to the object. + Ptype : O_Tnode; + + case State is + when Mstate_E => + E : O_Enode; + when Mstate_Lv => + Lv : O_Lnode; + when Mstate_Lp => + Lp : O_Lnode; + when Mstate_Dv => + Dv : O_Dnode; + when Mstate_Dp => + Dp : O_Dnode; + when Mstate_Bad + | Mstate_Null => + null; + end case; + end record; + --pragma Pack (Mnode1); + + type Mnode is record + M1 : Mnode1; + end record; + + -- Null Mnode. + Mnode_Null : constant Mnode := Mnode'(M1 => (State => Mstate_Null, + Comp => False, + K => Mode_Value, + Ptype => O_Tnode_Null, + Vtype => O_Tnode_Null, + T => null)); + + + -- Object kind of a Mnode + function Get_Object_Kind (M : Mnode) return Object_Kind_Type; + + -- Transform VAR to Mnode. + function Get_Var + (Var : Var_Type; Vtype : Type_Info_Acc; Mode : Object_Kind_Type) + return Mnode; + + -- Return a stabilized node for M. + -- The former M is not usuable anymore. + function Stabilize (M : Mnode; Can_Copy : Boolean := False) return Mnode; + + -- Stabilize M. + procedure Stabilize (M : in out Mnode); + + -- If M is not stable, create a variable containing the value of M. + -- M must be scalar (or access). + function Stabilize_Value (M : Mnode) return Mnode; + + -- Create a temporary of type INFO and kind KIND. + function Create_Temp (Info : Type_Info_Acc; + Kind : Object_Kind_Type := Mode_Value) + return Mnode; + + -- Return the value of field FIELD of lnode L that is contains + -- a pointer to a record. + -- This is equivalent to: + -- new_value (new_selected_element (new_access_element (new_value (l)), + -- field)) + function New_Value_Selected_Acc_Value (L : O_Lnode; Field : O_Fnode) + return O_Enode; + function New_Selected_Acc_Value (L : O_Lnode; Field : O_Fnode) + return O_Lnode; + + function New_Indexed_Acc_Value (L : O_Lnode; I : O_Enode) return O_Lnode; + + -- Equivalent to new_access_element (new_value (l)) + function New_Acc_Value (L : O_Lnode) return O_Lnode; + + procedure Init_Node_Infos; + procedure Update_Node_Infos; + procedure Free_Node_Infos; + + procedure Set_Info (Target : Iir; Info : Ortho_Info_Acc); + + procedure Clear_Info (Target : Iir); + + function Get_Info (Target : Iir) return Ortho_Info_Acc; + pragma Inline (Get_Info); + + -- Create an ortho_info field of kind KIND for iir node TARGET, and + -- return it. + function Add_Info (Target : Iir; Kind : Ortho_Info_Kind) + return Ortho_Info_Acc; + + procedure Free_Info (Target : Iir); + + procedure Free_Type_Info (Info : in out Type_Info_Acc); + + procedure Set_Ortho_Expr (Target : Iir; Expr : O_Cnode); + + function Get_Ortho_Expr (Target : Iir) return O_Cnode; + + function Get_Ortho_Type (Target : Iir; Is_Sig : Object_Kind_Type) + return O_Tnode; + + -- Return true is INFO is a type info for a composite type, ie: + -- * a record + -- * an array (fat or thin) + -- * a fat pointer. + function Is_Composite (Info : Type_Info_Acc) return Boolean; + pragma Inline (Is_Composite); + + function Is_Complex_Type (Tinfo : Type_Info_Acc) return Boolean; + pragma Inline (Is_Complex_Type); + + type Hexstr_Type is array (Integer range 0 .. 15) of Character; + N2hex : constant Hexstr_Type := "0123456789abcdef"; + + function Get_Type_Info (M : Mnode) return Type_Info_Acc; + pragma Inline (Get_Type_Info); + + function E2M (E : O_Enode; T : Type_Info_Acc; Kind : Object_Kind_Type) + return Mnode; + + function Lv2M (L : O_Lnode; T : Type_Info_Acc; Kind : Object_Kind_Type) + return Mnode; + function Lv2M (L : O_Lnode; + Comp : Boolean; + Vtype : O_Tnode; + Ptype : O_Tnode; + T : Type_Info_Acc; Kind : Object_Kind_Type) + return Mnode; + + function Lp2M (L : O_Lnode; T : Type_Info_Acc; Kind : Object_Kind_Type) + return Mnode; + + function Lp2M (L : O_Lnode; + T : Type_Info_Acc; + Kind : Object_Kind_Type; + Vtype : O_Tnode; + Ptype : O_Tnode) + return Mnode; + + function Lv2M (L : O_Lnode; + T : Type_Info_Acc; + Kind : Object_Kind_Type; + Vtype : O_Tnode; + Ptype : O_Tnode) + return Mnode; + + function Dv2M (D : O_Dnode; + T : Type_Info_Acc; + Kind : Object_Kind_Type) + return Mnode; + + function Dv2M (D : O_Dnode; + T : Type_Info_Acc; + Kind : Object_Kind_Type; + Vtype : O_Tnode; + Ptype : O_Tnode) + return Mnode; + + function Dp2M (D : O_Dnode; + T : Type_Info_Acc; + Kind : Object_Kind_Type; + Vtype : O_Tnode; + Ptype : O_Tnode) + return Mnode; + + function Dp2M (D : O_Dnode; + T : Type_Info_Acc; + Kind : Object_Kind_Type) + return Mnode; + + function M2Lv (M : Mnode) return O_Lnode; + + function M2Lp (M : Mnode) return O_Lnode; + + function M2Dp (M : Mnode) return O_Dnode; + + function M2Dv (M : Mnode) return O_Dnode; + + function T2M (Atype : Iir; Kind : Object_Kind_Type) return Mnode; + + function M2E (M : Mnode) return O_Enode; + + function M2Addr (M : Mnode) return O_Enode; + +-- function Is_Null (M : Mnode) return Boolean is +-- begin +-- return M.M1.State = Mstate_Null; +-- end Is_Null; + + function Is_Stable (M : Mnode) return Boolean; + +-- function Varv2M +-- (Var : Var_Type; Vtype : Type_Info_Acc; Mode : Object_Kind_Type) +-- return Mnode is +-- begin +-- return Lv2M (Get_Var (Var), Vtype, Mode); +-- end Varv2M; + + function Varv2M (Var : Var_Type; + Var_Type : Type_Info_Acc; + Mode : Object_Kind_Type; + Vtype : O_Tnode; + Ptype : O_Tnode) + return Mnode; + + -- Convert a Lnode for a sub object to an MNODE. + function Lo2M (L : O_Lnode; Vtype : Type_Info_Acc; Mode : Object_Kind_Type) + return Mnode; + + function Lo2M (D : O_Dnode; Vtype : Type_Info_Acc; Mode : Object_Kind_Type) + return Mnode; + + package Helpers is + -- Generate code to initialize a ghdl_index_type variable V to 0. + procedure Init_Var (V : O_Dnode); + + -- Generate code to increment/decrement a ghdl_index_type variable V. + procedure Inc_Var (V : O_Dnode); + procedure Dec_Var (V : O_Dnode); + + -- Generate code to exit from loop LABEL iff COND is true. + procedure Gen_Exit_When (Label : O_Snode; Cond : O_Enode); + + -- Create a region for temporary variables. + procedure Open_Temp; + -- Create a temporary variable. + function Create_Temp (Atype : O_Tnode) return O_Dnode; + -- Create a temporary variable of ATYPE and initialize it with VALUE. + function Create_Temp_Init (Atype : O_Tnode; Value : O_Enode) + return O_Dnode; + -- Create a temporary variable of ATYPE and initialize it with the + -- address of NAME. + function Create_Temp_Ptr (Atype : O_Tnode; Name : O_Lnode) + return O_Dnode; + -- Create a mark in the temporary region for the stack2. + -- FIXME: maybe a flag must be added to CLOSE_TEMP where it is known + -- stack2 can be released. + procedure Create_Temp_Stack2_Mark; + -- Add ATYPE in the chain of types to be destroyed at the end of the + -- temp scope. + procedure Add_Transient_Type_In_Temp (Atype : Iir); + -- Close the temporary region. + procedure Close_Temp; + + -- Like Open_Temp, but will never create a declare region. To be used + -- only within a subprogram, to use the declare region of the + -- subprogram. + procedure Open_Local_Temp; + -- Destroy transient types created in a temporary region. + procedure Destroy_Local_Transient_Types; + procedure Close_Local_Temp; + + -- Return TRUE if stack2 will be released. Used for fine-tuning only + -- (return statement). + function Has_Stack2_Mark return Boolean; + -- Manually release stack2. Used for fine-tuning only. + procedure Stack2_Release; + + -- Free all old temp. + -- Used only to free memory. + procedure Free_Old_Temp; + + -- Return a ghdl_index_type literal for NUM. + function New_Index_Lit (Num : Unsigned_64) return O_Cnode; + + -- Create a uniq identifier. + subtype Uniq_Identifier_String is String (1 .. 11); + function Create_Uniq_Identifier return Uniq_Identifier_String; + function Create_Uniq_Identifier return O_Ident; + end Helpers; +end Trans; diff --git a/src/vhdl/translate/translation.adb b/src/vhdl/translate/translation.adb index 7c5fbe85c..9f0e416fb 100644 --- a/src/vhdl/translate/translation.adb +++ b/src/vhdl/translate/translation.adb @@ -1,5 +1,5 @@ -- Iir to ortho translator. --- Copyright (C) 2002, 2003, 2004, 2005, 2006 Tristan Gingold +-- Copyright (C) 2002 - 2014 Tristan Gingold -- -- GHDL is free software; you can redistribute it and/or modify it under -- the terms of the GNU General Public License as published by the Free @@ -37,483 +37,39 @@ with Sem_Names; with Sem_Inst; with Sem; with Iir_Chains; use Iir_Chains; -with Nodes; with Nodes_Meta; -with GNAT.Table; with Ieee.Std_Logic_1164; with Canon; with Canon_PSL; with PSL.Nodes; with PSL.NFAs; with PSL.NFAs.Utils; +with Trans; with Trans_Decls; use Trans_Decls; with Trans_Analyzes; package body Translation is + use Trans; + use Trans.Chap10; + use Trans.Helpers; - -- Ortho type node for STD.BOOLEAN. - Std_Boolean_Type_Node : O_Tnode; - Std_Boolean_True_Node : O_Cnode; - Std_Boolean_False_Node : O_Cnode; - -- Array of STD.BOOLEAN. - Std_Boolean_Array_Type : O_Tnode; - -- Std_ulogic indexed array of STD.Boolean. - Std_Ulogic_Boolean_Array_Type : O_Tnode; - -- Ortho type node for string template pointer. - Std_String_Ptr_Node : O_Tnode; - Std_String_Node : O_Tnode; - - -- Ortho type for std.standard.integer. - Std_Integer_Otype : O_Tnode; - - -- Ortho type for std.standard.real. - Std_Real_Otype : O_Tnode; - - -- Ortho type node for std.standard.time. - Std_Time_Otype : O_Tnode; - - -- Node for the variable containing the current filename. - Current_Filename_Node : O_Dnode := O_Dnode_Null; - Current_Library_Unit : Iir := Null_Iir; - - -- Global declarations. - Ghdl_Ptr_Type : O_Tnode; - Sizetype : O_Tnode; - Ghdl_I32_Type : O_Tnode; - Ghdl_I64_Type : O_Tnode; - Ghdl_Real_Type : O_Tnode; - -- Constant character. - Char_Type_Node : O_Tnode; - -- Array of char. - Chararray_Type : O_Tnode; - -- Pointer to array of char. - Char_Ptr_Type : O_Tnode; - -- Array of char ptr. - Char_Ptr_Array_Type : O_Tnode; - Char_Ptr_Array_Ptr_Type : O_Tnode; - - Ghdl_Index_Type : O_Tnode; - Ghdl_Index_0 : O_Cnode; - Ghdl_Index_1 : O_Cnode; - - -- Type for a file (this is in fact a index in a private table). - Ghdl_File_Index_Type : O_Tnode; - Ghdl_File_Index_Ptr_Type : O_Tnode; - - -- Record containing a len and string fields. - Ghdl_Str_Len_Type_Node : O_Tnode; - Ghdl_Str_Len_Type_Len_Field : O_Fnode; - Ghdl_Str_Len_Type_Str_Field : O_Fnode; - Ghdl_Str_Len_Ptr_Node : O_Tnode; - Ghdl_Str_Len_Array_Type_Node : O_Tnode; - - -- Location. - Ghdl_Location_Type_Node : O_Tnode; - Ghdl_Location_Filename_Node : O_Fnode; - Ghdl_Location_Line_Node : O_Fnode; - Ghdl_Location_Col_Node : O_Fnode; - Ghdl_Location_Ptr_Node : O_Tnode; - - -- Allocate memory for a block. - Ghdl_Alloc_Ptr : O_Dnode; - - -- bool type. - Ghdl_Bool_Type : O_Tnode; - type Enode_Boolean_Array is array (Boolean) of O_Cnode; - Ghdl_Bool_Nodes : Enode_Boolean_Array; - Ghdl_Bool_False_Node : O_Cnode renames Ghdl_Bool_Nodes (False); - Ghdl_Bool_True_Node : O_Cnode renames Ghdl_Bool_Nodes (True); - - Ghdl_Bool_Array_Type : O_Tnode; - Ghdl_Bool_Array_Ptr : O_Tnode; - - -- Comparaison type. - Ghdl_Compare_Type : O_Tnode; - Ghdl_Compare_Lt : O_Cnode; - Ghdl_Compare_Eq : O_Cnode; - Ghdl_Compare_Gt : O_Cnode; - - -- Dir type. - Ghdl_Dir_Type_Node : O_Tnode; - Ghdl_Dir_To_Node : O_Cnode; - Ghdl_Dir_Downto_Node : O_Cnode; - - -- Signals. - Ghdl_Scalar_Bytes : O_Tnode; - Ghdl_Signal_Type : O_Tnode; - Ghdl_Signal_Value_Field : O_Fnode; - Ghdl_Signal_Driving_Value_Field : O_Fnode; - Ghdl_Signal_Last_Value_Field : O_Fnode; - Ghdl_Signal_Last_Event_Field : O_Fnode; - Ghdl_Signal_Last_Active_Field : O_Fnode; - Ghdl_Signal_Event_Field : O_Fnode; - Ghdl_Signal_Active_Field : O_Fnode; - Ghdl_Signal_Has_Active_Field : O_Fnode; - - Ghdl_Signal_Ptr : O_Tnode; - Ghdl_Signal_Ptr_Ptr : O_Tnode; - - type Object_Kind_Type is (Mode_Value, Mode_Signal); - - -- Well known identifiers. - Wki_This : O_Ident; - Wki_Size : O_Ident; - Wki_Res : O_Ident; - Wki_Dir_To : O_Ident; - Wki_Dir_Downto : O_Ident; - Wki_Left : O_Ident; - Wki_Right : O_Ident; - Wki_Dir : O_Ident; - Wki_Length : O_Ident; - Wki_I : O_Ident; - Wki_Instance : O_Ident; - Wki_Arch_Instance : O_Ident; - Wki_Name : O_Ident; - Wki_Sig : O_Ident; - Wki_Obj : O_Ident; - Wki_Rti : O_Ident; - Wki_Parent : O_Ident; - Wki_Filename : O_Ident; - Wki_Line : O_Ident; - Wki_Lo : O_Ident; - Wki_Hi : O_Ident; - Wki_Mid : O_Ident; - Wki_Cmp : O_Ident; - Wki_Upframe : O_Ident; - Wki_Frame : O_Ident; - Wki_Val : O_Ident; - Wki_L_Len : O_Ident; - Wki_R_Len : O_Ident; - - -- ALLOCATION_KIND defines the type of memory storage. - -- ALLOC_STACK means the object is allocated on the local stack and - -- deallocated at the end of the function. - -- ALLOC_SYSTEM for object created during design elaboration and whose - -- life is infinite. - -- ALLOC_RETURN for unconstrained object returns by function. - -- ALLOC_HEAP for object created by new. - type Allocation_Kind is - (Alloc_Stack, Alloc_Return, Alloc_Heap, Alloc_System); - - package Chap10 is - -- There are three data storage kind: global, local or instance. - -- For example, a constant can have: - -- * a global storage when declared inside a package. This storage - -- can be accessed from any point. - -- * a local storage when declared in a subprogram. This storage - -- can be accessed from the subprogram, is created when the subprogram - -- is called and destroy when the subprogram exit. - -- * an instance storage when declared inside a process. This storage - -- can be accessed from the process via an instance pointer, is - -- created during elaboration. - --procedure Push_Global_Factory (Storage : O_Storage); - --procedure Pop_Global_Factory; - procedure Set_Global_Storage (Storage : O_Storage); - - -- Set the global scope handling. - Global_Storage : O_Storage; - - -- Scope for variables. This is used both to build instances (so it - -- contains the record type that contains objects declared in that - -- scope) and to use instances (it contains the path to access to these - -- objects). - type Var_Scope_Type is private; - - type Var_Scope_Acc is access all Var_Scope_Type; - for Var_Scope_Acc'Storage_Size use 0; - - Null_Var_Scope : constant Var_Scope_Type; - - type Var_Type is private; - Null_Var : constant Var_Type; - - -- Return the record type for SCOPE. - function Get_Scope_Type (Scope : Var_Scope_Type) return O_Tnode; - - -- Return the size for instances of SCOPE. - function Get_Scope_Size (Scope : Var_Scope_Type) return O_Cnode; - - -- Return True iff SCOPE is defined. - function Has_Scope_Type (Scope : Var_Scope_Type) return Boolean; - - -- Create an empty and incomplete scope type for SCOPE using NAME. - procedure Predeclare_Scope_Type (Scope : Var_Scope_Acc; Name : O_Ident); - - -- Declare a pointer PTR_TYPE with NAME to scope type SCOPE. - procedure Declare_Scope_Acc - (Scope : Var_Scope_Type; Name : O_Ident; Ptr_Type : out O_Tnode); - - -- Start to build an instance. - -- If INSTANCE_TYPE is not O_TNODE_NULL, it must be an uncompleted - -- record type, that will be completed. - procedure Push_Instance_Factory (Scope : Var_Scope_Acc); - - -- Manually add a field to the current instance being built. - function Add_Instance_Factory_Field (Name : O_Ident; Ftype : O_Tnode) - return O_Fnode; - - -- In the scope being built, add a field NAME that contain sub-scope - -- CHILD. CHILD is modified so that accesses to CHILD objects is done - -- via SCOPE. - procedure Add_Scope_Field - (Name : O_Ident; Child : in out Var_Scope_Type); - - -- Return the offset of field for CHILD in its parent scope. - function Get_Scope_Offset (Child : Var_Scope_Type; Otype : O_Tnode) - return O_Cnode; - - -- Finish the building of the current instance and return the type - -- built. - procedure Pop_Instance_Factory (Scope : Var_Scope_Acc); - - -- Create a new scope, in which variable are created locally - -- (ie, on the stack). Always created unlocked. - procedure Push_Local_Factory; - - -- Destroy a local scope. - procedure Pop_Local_Factory; - - -- Set_Scope defines how to access to variables of SCOPE. - -- Variables defined in SCOPE can be accessed via field SCOPE_FIELD - -- in scope SCOPE_PARENT. - procedure Set_Scope_Via_Field - (Scope : in out Var_Scope_Type; - Scope_Field : O_Fnode; Scope_Parent : Var_Scope_Acc); - - -- Variables defined in SCOPE can be accessed by dereferencing - -- field SCOPE_FIELD defined in SCOPE_PARENT. - procedure Set_Scope_Via_Field_Ptr - (Scope : in out Var_Scope_Type; - Scope_Field : O_Fnode; Scope_Parent : Var_Scope_Acc); - - -- Variables/scopes defined in SCOPE can be accessed via - -- dereference of parameter SCOPE_PARAM. - procedure Set_Scope_Via_Param_Ptr - (Scope : in out Var_Scope_Type; Scope_Param : O_Dnode); - - -- Variables/scopes defined in SCOPE can be accessed via DECL. - procedure Set_Scope_Via_Decl - (Scope : in out Var_Scope_Type; Decl : O_Dnode); - - -- Variables/scopes defined in SCOPE can be accessed by derefencing - -- VAR. - procedure Set_Scope_Via_Var_Ptr - (Scope : in out Var_Scope_Type; Var : Var_Type); - - -- No more accesses to SCOPE_TYPE are allowed. Scopes must be cleared - -- before being set. - procedure Clear_Scope (Scope : in out Var_Scope_Type); - - -- Reset the identifier. - type Id_Mark_Type is limited private; - type Local_Identifier_Type is private; - - procedure Reset_Identifier_Prefix; - procedure Push_Identifier_Prefix (Mark : out Id_Mark_Type; - Name : String; - Val : Iir_Int32 := 0); - procedure Push_Identifier_Prefix (Mark : out Id_Mark_Type; - Name : Name_Id; - Val : Iir_Int32 := 0); - procedure Push_Identifier_Prefix_Uniq (Mark : out Id_Mark_Type); - procedure Pop_Identifier_Prefix (Mark : in Id_Mark_Type); - - -- Save/restore the local identifier number; this is used by package - -- body, which has the same prefix as the package declaration, so it - -- must continue local identifiers numbers. - -- This is used by subprogram bodies too. - procedure Save_Local_Identifier (Id : out Local_Identifier_Type); - procedure Restore_Local_Identifier (Id : Local_Identifier_Type); - - -- Create an identifier from IIR node ID without the prefix. - function Create_Identifier_Without_Prefix (Id : Iir) - return O_Ident; - function Create_Identifier_Without_Prefix (Id : Name_Id; Str : String) - return O_Ident; - - -- Create an identifier from the current prefix. - function Create_Identifier return O_Ident; - - -- Create an identifier from IIR node ID with prefix. - function Create_Identifier (Id : Iir; Str : String := "") - return O_Ident; - function Create_Identifier - (Id : Iir; Val : Iir_Int32; Str : String := "") - return O_Ident; - function Create_Identifier (Id : Name_Id; Str : String := "") - return O_Ident; - -- Create a prefixed identifier from a string. - function Create_Identifier (Str : String) return O_Ident; - - -- Create an identifier for a variable. - -- IE, if the variable is global, prepend the prefix, - -- if the variable belong to an instance, no prefix is added. - type Var_Ident_Type is private; - function Create_Var_Identifier (Id : Iir) return Var_Ident_Type; - function Create_Var_Identifier (Id : String) return Var_Ident_Type; - function Create_Var_Identifier (Id : Iir; Str : String; Val : Natural) - return Var_Ident_Type; - function Create_Uniq_Identifier return Var_Ident_Type; - - -- Create variable NAME of type VTYPE in the current scope. - -- If the current scope is the global scope, then a variable is - -- created at the top level (using decl_global_storage). - -- If the current scope is not the global scope, then a field is added - -- to the current scope. - function Create_Var - (Name : Var_Ident_Type; - Vtype : O_Tnode; - Storage : O_Storage := Global_Storage) - return Var_Type; - - -- Create a global variable. - function Create_Global_Var - (Name : O_Ident; Vtype : O_Tnode; Storage : O_Storage) - return Var_Type; - - -- Create a global constant and initialize it to INITIAL_VALUE. - function Create_Global_Const - (Name : O_Ident; - Vtype : O_Tnode; - Storage : O_Storage; - Initial_Value : O_Cnode) - return Var_Type; - procedure Define_Global_Const (Const : in out Var_Type; Val : O_Cnode); - - -- Return the (real) reference to a variable created by Create_Var. - function Get_Var (Var : Var_Type) return O_Lnode; - - -- Return a reference to the instance of type ITYPE. - function Get_Instance_Ref (Scope : Var_Scope_Type) return O_Lnode; - - -- Return the address of the instance for block BLOCK. - function Get_Instance_Access (Block : Iir) return O_Enode; - - -- Return the storage for the variable VAR. - function Get_Alloc_Kind_For_Var (Var : Var_Type) return Allocation_Kind; - - -- Return TRUE iff VAR is stable, ie get_var (VAR) can be referenced - -- several times. - function Is_Var_Stable (Var : Var_Type) return Boolean; - - -- Used only to generate RTI. - function Is_Var_Field (Var : Var_Type) return Boolean; - function Get_Var_Offset (Var : Var_Type; Otype : O_Tnode) return O_Cnode; - function Get_Var_Label (Var : Var_Type) return O_Dnode; - - -- For package instantiation. - - -- Associate INST_SCOPE as the instantiated scope for ORIG_SCOPE. - procedure Push_Instantiate_Var_Scope - (Inst_Scope : Var_Scope_Acc; Orig_Scope : Var_Scope_Acc); - - -- Remove the association for INST_SCOPE. - procedure Pop_Instantiate_Var_Scope - (Inst_Scope : Var_Scope_Acc); - - -- Get the associated instantiated scope for SCOPE. - function Instantiated_Var_Scope (Scope : Var_Scope_Acc) - return Var_Scope_Acc; - - -- Create a copy of VAR using instantiated scope (if needed). - function Instantiate_Var (Var : Var_Type) return Var_Type; - - -- Create a copy of SCOPE using instantiated scope (if needed). - function Instantiate_Var_Scope (Scope : Var_Scope_Type) - return Var_Scope_Type; - private - type Local_Identifier_Type is new Natural; - type Id_Mark_Type is record - Len : Natural; - Local_Id : Local_Identifier_Type; - end record; - - type Var_Ident_Type is record - Id : O_Ident; - end record; - - -- An instance contains all the data (variable, signals, constant...) - -- which are declared by an entity and an architecture. - -- (An architecture inherits the data of its entity). - -- - -- The processes and implicit guard signals of an entity/architecture - -- are translated into functions. The first argument of these functions - -- is a pointer to the instance. - - type Inst_Build_Kind_Type is (Local, Global, Instance); - type Inst_Build_Type (Kind : Inst_Build_Kind_Type); - type Inst_Build_Acc is access Inst_Build_Type; - type Inst_Build_Type (Kind : Inst_Build_Kind_Type) is record - Prev : Inst_Build_Acc; - Prev_Id_Start : Natural; - case Kind is - when Local => - -- Previous global storage. - Prev_Global_Storage : O_Storage; - when Global => - null; - when Instance => - Scope : Var_Scope_Acc; - Elements : O_Element_List; - end case; - end record; - - -- Kind of variable: - -- VAR_NONE: the variable doesn't exist. - -- VAR_GLOBAL: the variable is a global variable (static or not). - -- VAR_LOCAL: the variable is on the stack. - -- VAR_SCOPE: the variable is in the instance record. - type Var_Kind is (Var_None, Var_Global, Var_Local, Var_Scope); - - type Var_Type (Kind : Var_Kind := Var_None) is record - case Kind is - when Var_None => - null; - when Var_Global - | Var_Local => - E : O_Dnode; - when Var_Scope => - I_Field : O_Fnode; - I_Scope : Var_Scope_Acc; - end case; - end record; - - Null_Var : constant Var_Type := (Kind => Var_None); - - type Var_Scope_Kind is (Var_Scope_None, - Var_Scope_Ptr, - Var_Scope_Decl, - Var_Scope_Field, - Var_Scope_Field_Ptr); - - type Var_Scope_Type (Kind : Var_Scope_Kind := Var_Scope_None) is record - Scope_Type : O_Tnode := O_Tnode_Null; - - case Kind is - when Var_Scope_None => - -- Not set, cannot be referenced. - null; - when Var_Scope_Ptr - | Var_Scope_Decl => - -- Instance for entity, architecture, component, subprogram, - -- resolver, process, guard function, PSL directive, PSL cover, - -- PSL assert, component instantiation elaborator - D : O_Dnode; - when Var_Scope_Field - | Var_Scope_Field_Ptr => - -- For an entity: the architecture. - -- For an architecture: ptr to a generate subblock. - -- For a subprogram: parent frame - Field : O_Fnode; - Up_Link : Var_Scope_Acc; - end case; - end record; - - Null_Var_Scope : constant Var_Scope_Type := (Scope_Type => O_Tnode_Null, - Kind => Var_Scope_None); + function Get_Ortho_Decl (Subprg : Iir) return O_Dnode is + begin + return Get_Info (Subprg).Ortho_Func; + end Get_Ortho_Decl; - end Chap10; - use Chap10; + function Get_Resolv_Ortho_Decl (Func : Iir) return O_Dnode + is + Info : Subprg_Resolv_Info_Acc; + begin + Info := Get_Info (Func).Subprg_Resolv; + if Info = null then + -- Maybe the resolver is not used. + return O_Dnode_Null; + else + return Info.Resolv_Func; + end if; + end Get_Resolv_Ortho_Decl; package Chap1 is -- Declare types for block BLK @@ -566,123 +122,6 @@ package body Translation is -- it. The names are respectively INSTTYPE and INSTPTR. procedure Declare_Inst_Type_And_Ptr (Scope : Var_Scope_Acc; Ptr_Type : out O_Tnode); - - -- Subprograms instances. - -- - -- Subprograms declared inside entities, architecture, blocks - -- or processes (but not inside packages) may access to data declared - -- outside the subprogram (and this with a life longer than the - -- subprogram life). These data correspond to constants, variables, - -- files, signals or types. However these data are not shared between - -- instances of the same entity, architecture... Subprograms instances - -- is the way subprograms access to these data. - -- One subprogram instance corresponds to a record. - - -- Type to save an old instance builder. Subprograms may have at most - -- one instance. If they need severals (for example a protected - -- subprogram), the most recent one will have a reference to the - -- previous one. - type Subprg_Instance_Stack is limited private; - - -- Declare an instance to be added for subprograms. - -- DECL is the node for which the instance is created. This is used by - -- PUSH_SCOPE. - -- PTR_TYPE is a pointer to DECL_TYPE. - -- IDENT is an identifier for the interface. - -- The previous instance is stored to PREV. It must be restored with - -- Pop_Subprg_Instance. - -- Add_Subprg_Instance_Interfaces will add an interface of name IDENT - -- and type PTR_TYPE for every instance declared by - -- PUSH_SUBPRG_INSTANCE. - procedure Push_Subprg_Instance (Scope : Var_Scope_Acc; - Ptr_Type : O_Tnode; - Ident : O_Ident; - Prev : out Subprg_Instance_Stack); - - -- Since local subprograms has a direct access to its father interfaces, - -- they do not required instances interfaces. - -- These procedures are provided to temporarly disable the addition of - -- instances interfaces. Use Pop_Subpg_Instance to restore to the - -- previous state. - procedure Clear_Subprg_Instance (Prev : out Subprg_Instance_Stack); - - -- Revert of the previous subprogram. - -- Instances must be removed in opposite order they are added. - procedure Pop_Subprg_Instance (Ident : O_Ident; - Prev : Subprg_Instance_Stack); - - -- True iff there is currently a subprogram instance. - function Has_Current_Subprg_Instance return Boolean; - - -- Contains the subprogram interface for the instance. - type Subprg_Instance_Type is private; - Null_Subprg_Instance : constant Subprg_Instance_Type; - - -- Add interfaces during the creation of a subprogram. - procedure Add_Subprg_Instance_Interfaces - (Interfaces : in out O_Inter_List; Vars : out Subprg_Instance_Type); - - -- Add a field in the current factory that reference the current - -- instance. - procedure Add_Subprg_Instance_Field (Field : out O_Fnode); - - -- Associate values to the instance interface during invocation of a - -- subprogram. - procedure Add_Subprg_Instance_Assoc - (Assocs : in out O_Assoc_List; Vars : Subprg_Instance_Type); - - -- Get the value to be associated to the instance interface. - function Get_Subprg_Instance (Vars : Subprg_Instance_Type) - return O_Enode; - - -- True iff VARS is associated with an instance. - function Has_Subprg_Instance (Vars : Subprg_Instance_Type) - return Boolean; - - -- Assign the instance field FIELD of VAR. - procedure Set_Subprg_Instance_Field - (Var : O_Dnode; Field : O_Fnode; Vars : Subprg_Instance_Type); - - -- To be called at the beginning and end of a subprogram body creation. - -- Call PUSH_SCOPE for the subprogram intances. - procedure Start_Subprg_Instance_Use (Vars : Subprg_Instance_Type); - procedure Finish_Subprg_Instance_Use (Vars : Subprg_Instance_Type); - - -- Call Push_Scope to reference instance from FIELD. - procedure Start_Prev_Subprg_Instance_Use_Via_Field - (Prev : Subprg_Instance_Stack; Field : O_Fnode); - procedure Finish_Prev_Subprg_Instance_Use_Via_Field - (Prev : Subprg_Instance_Stack; Field : O_Fnode); - - -- Same as above, but for IIR. - procedure Create_Subprg_Instance (Interfaces : in out O_Inter_List; - Subprg : Iir); - - procedure Start_Subprg_Instance_Use (Subprg : Iir); - procedure Finish_Subprg_Instance_Use (Subprg : Iir); - - function Instantiate_Subprg_Instance (Inst : Subprg_Instance_Type) - return Subprg_Instance_Type; - private - type Subprg_Instance_Type is record - Inter : O_Dnode; - Inter_Type : O_Tnode; - Scope : Var_Scope_Acc; - end record; - Null_Subprg_Instance : constant Subprg_Instance_Type := - (O_Dnode_Null, O_Tnode_Null, null); - - type Subprg_Instance_Stack is record - Scope : Var_Scope_Acc; - Ptr_Type : O_Tnode; - Ident : O_Ident; - end record; - - Null_Subprg_Instance_Stack : constant Subprg_Instance_Stack := - (null, O_Tnode_Null, O_Ident_Nul); - - Current_Subprg_Instance : Subprg_Instance_Stack := - Null_Subprg_Instance_Stack; end Chap2; package Chap5 is @@ -872,995 +311,6 @@ package body Translation is function Get_Context_Addr (Node : Iir) return O_Enode; end Rtis; - type Ortho_Info_Kind is - ( - Kind_Type, - Kind_Incomplete_Type, - Kind_Index, - Kind_Expr, - Kind_Subprg, - Kind_Object, - Kind_Alias, - Kind_Iterator, - Kind_Interface, - Kind_Disconnect, - Kind_Process, - Kind_Psl_Directive, - Kind_Loop, - Kind_Block, - Kind_Component, - Kind_Field, - Kind_Package, - Kind_Package_Instance, - Kind_Config, - Kind_Assoc, - Kind_Str_Choice, - Kind_Design_File, - Kind_Library - ); - - type Ortho_Info_Type_Kind is - ( - Kind_Type_Scalar, - Kind_Type_Array, - Kind_Type_Record, - Kind_Type_File, - Kind_Type_Protected - ); - type O_Tnode_Array is array (Object_Kind_Type) of O_Tnode; - type O_Fnode_Array is array (Object_Kind_Type) of O_Fnode; - - type Rti_Depth_Type is new Natural range 0 .. 255; - - type Ortho_Info_Type_Type (Kind : Ortho_Info_Type_Kind := Kind_Type_Scalar) - is record - -- For all types: - -- This is the maximum depth of RTI, that is the max of the depth of - -- the type itself and every types it depends on. - Rti_Max_Depth : Rti_Depth_Type; - - case Kind is - when Kind_Type_Scalar => - -- For scalar types: - -- True if no need to check against low/high bound. - Nocheck_Low : Boolean := False; - Nocheck_Hi : Boolean := False; - - -- Ortho type for the range record type. - Range_Type : O_Tnode; - - -- Ortho type for an access to the range record type. - Range_Ptr_Type : O_Tnode; - - -- Tree for the range record declaration. - Range_Var : Var_Type; - - -- Fields of TYPE_RANGE_TYPE. - Range_Left : O_Fnode; - Range_Right : O_Fnode; - Range_Dir : O_Fnode; - Range_Length : O_Fnode; - - when Kind_Type_Array => - Base_Type : O_Tnode_Array; - Base_Ptr_Type : O_Tnode_Array; - Bounds_Type : O_Tnode; - Bounds_Ptr_Type : O_Tnode; - - Base_Field : O_Fnode_Array; - Bounds_Field : O_Fnode_Array; - - -- True if the array bounds are static. - Static_Bounds : Boolean; - - -- Variable containing the bounds for a constrained array. - Array_Bounds : Var_Type; - - -- Variable containing a 1 length bound for unidimensional - -- unconstrained arrays. - Array_1bound : Var_Type; - - -- Variable containing the description for each index. - Array_Index_Desc : Var_Type; - - when Kind_Type_Record => - -- Variable containing the description for each element. - Record_El_Desc : Var_Type; - - when Kind_Type_File => - -- Constant containing the signature of the file. - File_Signature : O_Dnode; - - when Kind_Type_Protected => - Prot_Scope : aliased Var_Scope_Type; - - -- Init procedure for the protected type. - Prot_Init_Subprg : O_Dnode; - Prot_Init_Instance : Chap2.Subprg_Instance_Type; - -- Final procedure. - Prot_Final_Subprg : O_Dnode; - Prot_Final_Instance : Chap2.Subprg_Instance_Type; - -- The outer instance, if any. - Prot_Subprg_Instance_Field : O_Fnode; - -- The LOCK field in the object type - Prot_Lock_Field : O_Fnode; - end case; - end record; - --- Ortho_Info_Type_Scalar_Init : constant Ortho_Info_Type_Type := --- (Kind => Kind_Type_Scalar, --- Range_Type => O_Tnode_Null, --- Range_Ptr_Type => O_Tnode_Null, --- Range_Var => null, --- Range_Left => O_Fnode_Null, --- Range_Right => O_Fnode_Null, --- Range_Dir => O_Fnode_Null, --- Range_Length => O_Fnode_Null); - - Ortho_Info_Type_Array_Init : constant Ortho_Info_Type_Type := - (Kind => Kind_Type_Array, - Rti_Max_Depth => 0, - Base_Type => (O_Tnode_Null, O_Tnode_Null), - Base_Ptr_Type => (O_Tnode_Null, O_Tnode_Null), - Bounds_Type => O_Tnode_Null, - Bounds_Ptr_Type => O_Tnode_Null, - Base_Field => (O_Fnode_Null, O_Fnode_Null), - Bounds_Field => (O_Fnode_Null, O_Fnode_Null), - Static_Bounds => False, - Array_Bounds => Null_Var, - Array_1bound => Null_Var, - Array_Index_Desc => Null_Var); - - Ortho_Info_Type_Record_Init : constant Ortho_Info_Type_Type := - (Kind => Kind_Type_Record, - Rti_Max_Depth => 0, - Record_El_Desc => Null_Var); - - Ortho_Info_Type_File_Init : constant Ortho_Info_Type_Type := - (Kind => Kind_Type_File, - Rti_Max_Depth => 0, - File_Signature => O_Dnode_Null); - - Ortho_Info_Type_Prot_Init : constant Ortho_Info_Type_Type := - (Kind => Kind_Type_Protected, - Rti_Max_Depth => 0, - Prot_Scope => Null_Var_Scope, - Prot_Init_Subprg => O_Dnode_Null, - Prot_Init_Instance => Chap2.Null_Subprg_Instance, - Prot_Final_Subprg => O_Dnode_Null, - Prot_Subprg_Instance_Field => O_Fnode_Null, - Prot_Final_Instance => Chap2.Null_Subprg_Instance, - Prot_Lock_Field => O_Fnode_Null); - - -- Mode of the type; roughly speaking, this corresponds to its size - -- (for scalars) or its layout (for composite types). - -- Used to select library subprograms for signals. - type Type_Mode_Type is - ( - -- Unknown mode. - Type_Mode_Unknown, - -- Boolean type, with 2 elements. - Type_Mode_B1, - -- Enumeration with at most 256 elements. - Type_Mode_E8, - -- Enumeration with more than 256 elements. - Type_Mode_E32, - -- Integer types. - Type_Mode_I32, - Type_Mode_I64, - -- Physical types. - Type_Mode_P32, - Type_Mode_P64, - -- Floating point type. - Type_Mode_F64, - -- File type. - Type_Mode_File, - -- Thin access. - Type_Mode_Acc, - - -- Fat access. - Type_Mode_Fat_Acc, - - -- Record. - Type_Mode_Record, - -- Protected type - Type_Mode_Protected, - -- Constrained array type (length is known at compile-time). - Type_Mode_Array, - -- Fat array type (used for unconstrained array). - Type_Mode_Fat_Array); - - subtype Type_Mode_Scalar is Type_Mode_Type - range Type_Mode_B1 .. Type_Mode_F64; - - subtype Type_Mode_Non_Composite is Type_Mode_Type - range Type_Mode_B1 .. Type_Mode_Fat_Acc; - - -- Composite types, with the vhdl meaning: record and arrays. - subtype Type_Mode_Composite is Type_Mode_Type - range Type_Mode_Record .. Type_Mode_Fat_Array; - - -- Array types. - subtype Type_Mode_Arrays is Type_Mode_Type range - Type_Mode_Array .. Type_Mode_Fat_Array; - - -- Thin types, ie types whose length is a scalar. - subtype Type_Mode_Thin is Type_Mode_Type - range Type_Mode_B1 .. Type_Mode_Acc; - - -- Fat types, ie types whose length is longer than a scalar. - subtype Type_Mode_Fat is Type_Mode_Type - range Type_Mode_Fat_Acc .. Type_Mode_Fat_Array; - - -- These parameters are passed by value, ie the argument of the subprogram - -- is the value of the object. - subtype Type_Mode_By_Value is Type_Mode_Type - range Type_Mode_B1 .. Type_Mode_Acc; - - -- These parameters are passed by copy, ie a copy of the object is created - -- and the reference of the copy is passed. If the object is not - -- modified by the subprogram, the object could be passed by reference. - subtype Type_Mode_By_Copy is Type_Mode_Type - range Type_Mode_Fat_Acc .. Type_Mode_Fat_Acc; - - -- The parameters are passed by reference, ie the argument of the - -- subprogram is an address to the object. - subtype Type_Mode_By_Ref is Type_Mode_Type - range Type_Mode_Record .. Type_Mode_Fat_Array; - - -- Additional informations for a resolving function. - type Subprg_Resolv_Info is record - Resolv_Func : O_Dnode; - -- Parameter nodes. - Var_Instance : Chap2.Subprg_Instance_Type; - - -- Signals - Var_Vals : O_Dnode; - -- Driving vector. - Var_Vec : O_Dnode; - -- Length of Vector. - Var_Vlen : O_Dnode; - Var_Nbr_Drv : O_Dnode; - Var_Nbr_Ports : O_Dnode; - end record; - type Subprg_Resolv_Info_Acc is access Subprg_Resolv_Info; - - -- Complex types. - -- - -- A complex type is not a VHDL notion, but a translation notion. - -- A complex type is a composite type whose size is not known at compile - -- type. This happends in VHDL because a bound can be globally static. - -- Therefore, the length of an array may not be known at compile type, - -- and this propagates to composite types (record and array) if they - -- have such an element. This is different from unconstrained arrays. - -- - -- This occurs frequently in VHDL, and could even happen within - -- subprograms. - -- - -- Such types are always dynamically allocated (on the stack or on the - -- heap). They must be continuous in memory so that they could be copied - -- via memcpy/memmove. - -- - -- At runtime, the size of such type is computed. A builder procedure - -- is also created to setup inner pointers. This builder procedure should - -- be called at initialization, but also after a copy. - -- - -- Example: - -- 1) subtype bv_type is bit_vector (l to h); - -- variable a : bv_type - -- - -- This is represented by a pointer to an array of bit. No need for - -- builder procedure, as the element type is not complex. But there - -- is a size variable for the size of bv_type - -- - -- 2) type rec1_type is record - -- f1 : integer; - -- f2 : bv_type; - -- end record; - -- - -- This is represented by a pointer to a record. The 'f2' field is - -- an offset to an array of bit. The size of the object is the size - -- of the record (with f2 as a pointer) + the size of bv_type. - -- The alinment of the object is the maximum alignment of its sub- - -- objects: rec1 and bv_type. - -- A builder procedure is needed to initialize the 'f2' field. - -- The memory layout is: - -- +--------------+ - -- | rec1: f1 | - -- | f2 |---+ - -- +--------------+ | - -- | bv_type |<--+ - -- | ... | - -- +--------------+ - -- - -- 3) type rec2_type is record - -- g1: rec1_type; - -- g2: bv_type; - -- g3: bv_type; - -- end record; - -- - -- This is represented by a pointer to a record. All the three fields - -- are offset (relative to rec2). Alignment is the maximum alignment of - -- the sub-objects (rec2, rec1, bv_type x 3). - -- The memory layout is: - -- +--------------+ - -- | rec2: g1 |---+ - -- | g2 |---|---+ - -- | g3 |---|---|---+ - -- +--------------+ | | | - -- | rec1: f1 |<--+ | | - -- | f2 |---+ | | - -- +--------------+ | | | - -- | bv_type (f2) |<--+ | | - -- | ... | | | - -- +--------------+ | | - -- | bv_type (g2) |<------+ | - -- | ... | | - -- +--------------+ | - -- | bv_type (g3) |<----------+ - -- | ... | - -- +--------------+ - -- - -- 4) type bv_arr_type is array (natural range <>) of bv_type; - -- arr2 : bv_arr_type (1 to 4) - -- - -- This should be represented by a pointer to bv_type. - -- The memory layout is: - -- +--------------+ - -- | bv_type (1) | - -- | ... | - -- +--------------+ - -- | bv_type (2) | - -- | ... | - -- +--------------+ - -- | bv_type (3) | - -- | ... | - -- +--------------+ - -- | bv_type (4) | - -- | ... | - -- +--------------+ - - -- Additional info for complex types. - type Complex_Type_Info is record - -- Variable containing the size of the type. - -- This is defined only for types whose size is only known at - -- running time (and not a compile-time). - Size_Var : Var_Type; - - -- Variable containing the alignment of the type. - -- Only defined for recods and for Mode_Value. - -- Note: this is not optimal, because the alignment could be computed - -- at compile time, but there is no way to do that with ortho (no - -- operation on constants). Furthermore, the alignment is independent - -- of the instance, so there could be one global variable. But this - -- doesn't fit in the whole machinery (in particular, there is no - -- easy way to compute it once). As the overhead is very low, no need - -- to bother with this issue. - Align_Var : Var_Type; - - Builder_Need_Func : Boolean; - - -- Parameters for type builders. - -- NOTE: this is only set for types (and *not* for subtypes). - Builder_Instance : Chap2.Subprg_Instance_Type; - Builder_Base_Param : O_Dnode; - Builder_Bound_Param : O_Dnode; - Builder_Func : O_Dnode; - end record; - type Complex_Type_Arr_Info is array (Object_Kind_Type) of Complex_Type_Info; - type Complex_Type_Info_Acc is access Complex_Type_Arr_Info; - procedure Free_Complex_Type_Info is new Ada.Unchecked_Deallocation - (Complex_Type_Arr_Info, Complex_Type_Info_Acc); - - type Assoc_Conv_Info is record - -- The subprogram created to do the conversion. - Subprg : O_Dnode; - -- The local base block - Instance_Block : Iir; - -- and its address. - Instance_Field : O_Fnode; - -- The instantiated entity (if any). - Instantiated_Entity : Iir; - -- and its address. - Instantiated_Field : O_Fnode; - In_Field : O_Fnode; - Out_Field : O_Fnode; - Record_Type : O_Tnode; - Record_Ptr_Type : O_Tnode; - end record; - - type Direct_Driver_Type is record - Sig : Iir; - Var : Var_Type; - end record; - type Direct_Driver_Arr is array (Natural range <>) of Direct_Driver_Type; - type Direct_Drivers_Acc is access Direct_Driver_Arr; - - type Ortho_Info_Type; - type Ortho_Info_Acc is access Ortho_Info_Type; - - type Ortho_Info_Type (Kind : Ortho_Info_Kind) is record - case Kind is - when Kind_Type => - -- Mode of the type. - Type_Mode : Type_Mode_Type := Type_Mode_Unknown; - - -- If true, the type is (still) incomplete. - Type_Incomplete : Boolean := False; - - -- For array only. True if the type is constrained with locally - -- static bounds. May have non locally-static bounds in some - -- of its sub-element (ie being a complex type). - Type_Locally_Constrained : Boolean := False; - - -- Additionnal info for complex types. - C : Complex_Type_Info_Acc := null; - - -- Ortho node which represents the type. - -- Type -> Ortho type - -- scalar -> scalar - -- record (complex or not) -> record - -- constrained non-complex array -> constrained array - -- constrained complex array -> the element - -- unconstrained array -> fat pointer - -- access to unconstrained array -> fat pointer - -- access (others) -> access - -- file -> file_index_type - -- protected -> instance - Ortho_Type : O_Tnode_Array; - - -- Ortho pointer to the type. This is always an access to the - -- ortho_type. - Ortho_Ptr_Type : O_Tnode_Array; - - -- Chain of temporary types to be destroyed at end of scope. - Type_Transient_Chain : Iir := Null_Iir; - - -- More info according to the type. - T : Ortho_Info_Type_Type; - - -- Run-time information. - Type_Rti : O_Dnode := O_Dnode_Null; - - when Kind_Incomplete_Type => - -- The declaration of the incomplete type. - Incomplete_Type : Iir; - Incomplete_Array : Ortho_Info_Acc; - - when Kind_Index => - -- Field declaration for array dimension. - Index_Field : O_Fnode; - - when Kind_Expr => - -- Ortho tree which represents the expression, used for - -- enumeration literals. - Expr_Node : O_Cnode; - - when Kind_Subprg => - -- True if the function can return a value stored in the secondary - -- stack. In this case, the caller must deallocate the area - -- allocated by the callee when the value was used. - Use_Stack2 : Boolean := False; - - -- Subprogram declaration node. - Ortho_Func : O_Dnode; - - -- For a function: - -- If the return value is not composite, then this field - -- must be O_DNODE_NULL. - -- If the return value is a composite type, then the caller must - -- give to the callee an area to put the result. This area is - -- given via an (hidden to the user) interface. Furthermore, - -- the function is translated into a procedure. - -- For a procedure: - -- If there are copy-out interfaces, they are gathered in a - -- record and a pointer to the record is passed to the - -- procedure. RES_INTERFACE is the interface for this pointer. - Res_Interface : O_Dnode := O_Dnode_Null; - - -- Field in the frame for a pointer to the RESULT structure. - Res_Record_Var : Var_Type := Null_Var; - - -- For a subprogram with a result interface: - -- Type definition for the record. - Res_Record_Type : O_Tnode := O_Tnode_Null; - -- Type definition for access to the record. - Res_Record_Ptr : O_Tnode := O_Tnode_Null; - - -- Access to the declarations within this subprogram. - Subprg_Frame_Scope : aliased Var_Scope_Type; - - -- Instances for the subprograms. - Subprg_Instance : Chap2.Subprg_Instance_Type := - Chap2.Null_Subprg_Instance; - - Subprg_Resolv : Subprg_Resolv_Info_Acc := null; - - -- Local identifier number, set by spec, continued by body. - Subprg_Local_Id : Local_Identifier_Type; - - -- If set, return should be converted into exit out of the - -- SUBPRG_EXIT loop and the value should be assigned to - -- SUBPRG_RESULT, if any. - Subprg_Exit : O_Snode := O_Snode_Null; - Subprg_Result : O_Dnode := O_Dnode_Null; - - when Kind_Object => - -- For constants: set when the object is defined as a constant. - Object_Static : Boolean; - -- The object itself. - Object_Var : Var_Type; - -- Direct driver for signal (if any). - Object_Driver : Var_Type := Null_Var; - -- RTI constant for the object. - Object_Rti : O_Dnode := O_Dnode_Null; - -- Function to compute the value of object (used for implicit - -- guard signal declaration). - Object_Function : O_Dnode := O_Dnode_Null; - - when Kind_Alias => - Alias_Var : Var_Type; - Alias_Kind : Object_Kind_Type; - - when Kind_Iterator => - Iterator_Var : Var_Type; - - when Kind_Interface => - -- Ortho declaration for the interface. If not null, there is - -- a corresponding ortho parameter for the interface. While - -- translating nested subprograms (that are unnested), - -- Interface_Field may be set to the corresponding field in the - -- FRAME record. So: - -- Node: not null, Field: null: parameter - -- Node: not null, Field: not null: parameter with a copy in - -- the FRAME record. - -- Node: null, Field: null: not possible - -- Node: null, Field: not null: field in RESULT record - Interface_Node : O_Dnode := O_Dnode_Null; - -- Field of the result record for copy-out arguments of procedure. - -- In that case, Interface_Node must be null. - Interface_Field : O_Fnode; - -- Type of the interface. - Interface_Type : O_Tnode; - - when Kind_Disconnect => - -- Variable which contains the time_expression of the - -- disconnection specification - Disconnect_Var : Var_Type; - - when Kind_Process => - Process_Scope : aliased Var_Scope_Type; - - -- Subprogram for the process. - Process_Subprg : O_Dnode; - - -- List of drivers if Flag_Direct_Drivers. - Process_Drivers : Direct_Drivers_Acc := null; - - -- RTI for the process. - Process_Rti_Const : O_Dnode := O_Dnode_Null; - - when Kind_Psl_Directive => - Psl_Scope : aliased Var_Scope_Type; - - -- Procedure for the state machine. - Psl_Proc_Subprg : O_Dnode; - -- Procedure for finalization. Handles EOS. - Psl_Proc_Final_Subprg : O_Dnode; - - -- Length of the state vector. - Psl_Vect_Len : Natural; - - -- Type of the state vector. - Psl_Vect_Type : O_Tnode; - - -- State vector variable. - Psl_Vect_Var : Var_Type; - - -- Boolean variable (for cover) - Psl_Bool_Var : Var_Type; - - -- RTI for the process. - Psl_Rti_Const : O_Dnode := O_Dnode_Null; - - when Kind_Loop => - -- Labels for the loop. - -- Used for exit/next from while-loop, and to exit from for-loop. - Label_Exit : O_Snode; - -- Used to next from for-loop, with an exit statment. - Label_Next : O_Snode; - - when Kind_Block => - -- Access to declarations of this block. - Block_Scope : aliased Var_Scope_Type; - - -- Instance type (ortho record) for declarations contained in the - -- block/entity/architecture. - Block_Decls_Ptr_Type : O_Tnode; - - -- For Entity: field in the instance type containing link to - -- parent. - -- For an instantiation: link in the parent block to the instance. - Block_Link_Field : O_Fnode; - - -- For an entity: must be o_fnode_null. - -- For an architecture: the entity field. - -- For a block, a component or a generate block: field in the - -- parent instance which contains the declarations for this - -- block. - Block_Parent_Field : O_Fnode; - - -- For a generate block: field in the block providing a chain to - -- the previous block (note: this may not be the parent, but - -- is a parent). - Block_Origin_Field : O_Fnode; - -- For an iterative block: boolean field set when the block - -- is configured. This is used to check if the block was already - -- configured since index and slice are not compelled to be - -- locally static. - Block_Configured_Field : O_Fnode; - - -- For iterative generate block: array of instances. - Block_Decls_Array_Type : O_Tnode; - Block_Decls_Array_Ptr_Type : O_Tnode; - - -- Subprogram which elaborates the block (for entity or arch). - Block_Elab_Subprg : O_Dnode; - -- Size of the block instance. - Block_Instance_Size : O_Dnode; - - -- Only for an entity: procedure that elaborate the packages this - -- units depend on. That must be done before elaborating the - -- entity and before evaluating default expressions in generics. - Block_Elab_Pkg_Subprg : O_Dnode; - - -- RTI constant for the block. - Block_Rti_Const : O_Dnode := O_Dnode_Null; - - when Kind_Component => - -- How to access to component interfaces. - Comp_Scope : aliased Var_Scope_Type; - - -- Instance for the component. - Comp_Ptr_Type : O_Tnode; - -- Field containing a pointer to the instance link. - Comp_Link : O_Fnode; - -- RTI for the component. - Comp_Rti_Const : O_Dnode; - - when Kind_Config => - -- Subprogram that configure the block. - Config_Subprg : O_Dnode; - - when Kind_Field => - -- Node for a record element declaration. - Field_Node : O_Fnode_Array := (O_Fnode_Null, O_Fnode_Null); - - when Kind_Package => - -- Subprogram which elaborate the package spec/body. - -- External units should call the body elaborator. - -- The spec elaborator is called only from the body elaborator. - Package_Elab_Spec_Subprg : O_Dnode; - Package_Elab_Body_Subprg : O_Dnode; - - -- Instance for the elaborators. - Package_Elab_Spec_Instance : Chap2.Subprg_Instance_Type; - Package_Elab_Body_Instance : Chap2.Subprg_Instance_Type; - - -- Variable set to true when the package is elaborated. - Package_Elab_Var : Var_Type; - - -- RTI constant for the package. - Package_Rti_Const : O_Dnode; - - -- Access to declarations of the spec. - Package_Spec_Scope : aliased Var_Scope_Type; - - -- Instance type for uninstantiated package - Package_Spec_Ptr_Type : O_Tnode; - - Package_Body_Scope : aliased Var_Scope_Type; - Package_Body_Ptr_Type : O_Tnode; - - -- Field to the spec within the body. - Package_Spec_Field : O_Fnode; - - -- Local id, set by package declaration, continued by package - -- body. - Package_Local_Id : Local_Identifier_Type; - - when Kind_Package_Instance => - -- The variables containing the instance. There are two variables - -- for interface package: one for the spec, one for the body. - -- For package instantiation, only the variable for the body is - -- used. The variable for spec is added so that packages with - -- package interfaces don't need to know the body of their - -- interfaces. - Package_Instance_Spec_Var : Var_Type; - Package_Instance_Body_Var : Var_Type; - - -- Elaboration procedure for the instance. - Package_Instance_Elab_Subprg : O_Dnode; - - Package_Instance_Spec_Scope : aliased Var_Scope_Type; - Package_Instance_Body_Scope : aliased Var_Scope_Type; - - when Kind_Assoc => - -- Association informations. - Assoc_In : Assoc_Conv_Info; - Assoc_Out : Assoc_Conv_Info; - - when Kind_Str_Choice => - -- List of choices, used to sort them. - Choice_Chain : Ortho_Info_Acc; - -- Association index. - Choice_Assoc : Natural; - -- Corresponding choice simple expression. - Choice_Expr : Iir; - -- Corresponding choice. - Choice_Parent : Iir; - - when Kind_Design_File => - Design_Filename : O_Dnode; - - when Kind_Library => - Library_Rti_Const : O_Dnode; - end case; - end record; - - procedure Unchecked_Deallocation is new Ada.Unchecked_Deallocation - (Name => Ortho_Info_Acc, Object => Ortho_Info_Type); - - subtype Type_Info_Acc is Ortho_Info_Acc (Kind_Type); - subtype Incomplete_Type_Info_Acc is Ortho_Info_Acc (Kind_Incomplete_Type); - subtype Index_Info_Acc is Ortho_Info_Acc (Kind_Index); - subtype Subprg_Info_Acc is Ortho_Info_Acc (Kind_Subprg); - subtype Object_Info_Acc is Ortho_Info_Acc (Kind_Object); - subtype Alias_Info_Acc is Ortho_Info_Acc (Kind_Alias); - subtype Proc_Info_Acc is Ortho_Info_Acc (Kind_Process); - subtype Psl_Info_Acc is Ortho_Info_Acc (Kind_Psl_Directive); - subtype Loop_Info_Acc is Ortho_Info_Acc (Kind_Loop); - subtype Block_Info_Acc is Ortho_Info_Acc (Kind_Block); - subtype Comp_Info_Acc is Ortho_Info_Acc (Kind_Component); - subtype Field_Info_Acc is Ortho_Info_Acc (Kind_Field); - subtype Config_Info_Acc is Ortho_Info_Acc (Kind_Config); - subtype Assoc_Info_Acc is Ortho_Info_Acc (Kind_Assoc); - subtype Inter_Info_Acc is Ortho_Info_Acc (Kind_Interface); - subtype Design_File_Info_Acc is Ortho_Info_Acc (Kind_Design_File); - subtype Library_Info_Acc is Ortho_Info_Acc (Kind_Library); - - package Node_Infos is new GNAT.Table - (Table_Component_Type => Ortho_Info_Acc, - Table_Index_Type => Iir, - Table_Low_Bound => 0, - Table_Initial => 1024, - Table_Increment => 100); - - procedure Update_Node_Infos - is - use Nodes; - F, L : Iir; - begin - F := Node_Infos.Last; - L := Nodes.Get_Last_Node; - Node_Infos.Set_Last (L); - Node_Infos.Table (F + 1 .. L) := (others => null); - end Update_Node_Infos; - - procedure Set_Info (Target : Iir; Info : Ortho_Info_Acc) is - begin - if Node_Infos.Table (Target) /= null then - raise Internal_Error; - end if; - Node_Infos.Table (Target) := Info; - end Set_Info; - - procedure Clear_Info (Target : Iir) is - begin - Node_Infos.Table (Target) := null; - end Clear_Info; - - function Get_Info (Target : Iir) return Ortho_Info_Acc is - begin - return Node_Infos.Table (Target); - end Get_Info; - - -- Create an ortho_info field of kind KIND for iir node TARGET, and - -- return it. - function Add_Info (Target : Iir; Kind : Ortho_Info_Kind) - return Ortho_Info_Acc - is - Res : Ortho_Info_Acc; - begin - Res := new Ortho_Info_Type (Kind); - Set_Info (Target, Res); - return Res; - end Add_Info; - - procedure Free_Info (Target : Iir) - is - Info : Ortho_Info_Acc; - begin - Info := Get_Info (Target); - if Info /= null then - Unchecked_Deallocation (Info); - Clear_Info (Target); - end if; - end Free_Info; - - procedure Free_Type_Info (Info : in out Type_Info_Acc) is - begin - if Info.C /= null then - Free_Complex_Type_Info (Info.C); - end if; - Unchecked_Deallocation (Info); - end Free_Type_Info; - - procedure Set_Ortho_Expr (Target : Iir; Expr : O_Cnode) - is - Info : Ortho_Info_Acc; - begin - Info := Add_Info (Target, Kind_Expr); - Info.Expr_Node := Expr; - end Set_Ortho_Expr; - - function Get_Ortho_Expr (Target : Iir) return O_Cnode is - begin - return Get_Info (Target).Expr_Node; - end Get_Ortho_Expr; - - function Get_Ortho_Type (Target : Iir; Is_Sig : Object_Kind_Type) - return O_Tnode is - begin - return Get_Info (Target).Ortho_Type (Is_Sig); - end Get_Ortho_Type; - - function Get_Ortho_Decl (Subprg : Iir) return O_Dnode - is - begin - return Get_Info (Subprg).Ortho_Func; - end Get_Ortho_Decl; - - function Get_Resolv_Ortho_Decl (Func : Iir) return O_Dnode - is - Info : Subprg_Resolv_Info_Acc; - begin - Info := Get_Info (Func).Subprg_Resolv; - if Info = null then - -- Maybe the resolver is not used. - return O_Dnode_Null; - else - return Info.Resolv_Func; - end if; - end Get_Resolv_Ortho_Decl; - - -- Return true is INFO is a type info for a composite type, ie: - -- * a record - -- * an array (fat or thin) - -- * a fat pointer. - function Is_Composite (Info : Type_Info_Acc) return Boolean; - pragma Inline (Is_Composite); - - function Is_Composite (Info : Type_Info_Acc) return Boolean is - begin - return Info.Type_Mode in Type_Mode_Fat; - end Is_Composite; - - function Is_Complex_Type (Tinfo : Type_Info_Acc) return Boolean; - pragma Inline (Is_Complex_Type); - - function Is_Complex_Type (Tinfo : Type_Info_Acc) return Boolean is - begin - return Tinfo.C /= null; - end Is_Complex_Type; - - -- In order to simplify the handling of Enode/Lnode, let's introduce - -- Mnode (yes, another node). - -- An Mnode is a typed union, containing either an Lnode or a Enode. - -- See Mstate for a description of the union. - -- The real data is contained insisde a record, so that the discriminant - -- can be changed. - type Mnode; - - -- State of an Mmode. - type Mstate is - ( - -- The Mnode contains an Enode, which can be either a value or a - -- pointer. - -- This Mnode can be used only once. - Mstate_E, - - -- The Mnode contains an Lnode representing a value. - -- This Lnode can be used only once. - Mstate_Lv, - - -- The Mnode contains an Lnode representing a pointer. - -- This Lnode can be used only once. - Mstate_Lp, - - -- The Mnode contains an Dnode for a variable representing a value. - -- This Dnode may be used several times. - Mstate_Dv, - - -- The Mnode contains an Dnode for a variable representing a pointer. - -- This Dnode may be used several times. - Mstate_Dp, - - -- Null Mnode. - Mstate_Null, - - -- The Mnode is invalid (such as already used). - Mstate_Bad); - - type Mnode1 (State : Mstate := Mstate_Bad) is record - -- True if the object is composite (its value cannot be read directly). - Comp : Boolean; - - -- Additionnal informations about the objects: kind and type. - K : Object_Kind_Type; - T : Type_Info_Acc; - - -- Ortho type of the object. - Vtype : O_Tnode; - - -- Type for a pointer to the object. - Ptype : O_Tnode; - - case State is - when Mstate_E => - E : O_Enode; - when Mstate_Lv => - Lv : O_Lnode; - when Mstate_Lp => - Lp : O_Lnode; - when Mstate_Dv => - Dv : O_Dnode; - when Mstate_Dp => - Dp : O_Dnode; - when Mstate_Bad - | Mstate_Null => - null; - end case; - end record; - --pragma Pack (Mnode1); - - type Mnode is record - M1 : Mnode1; - end record; - - -- Null Mnode. - Mnode_Null : constant Mnode := Mnode'(M1 => (State => Mstate_Null, - Comp => False, - K => Mode_Value, - Ptype => O_Tnode_Null, - Vtype => O_Tnode_Null, - T => null)); - - - -- Object kind of a Mnode - function Get_Object_Kind (M : Mnode) return Object_Kind_Type; - - -- Transform VAR to Mnode. - function Get_Var - (Var : Var_Type; Vtype : Type_Info_Acc; Mode : Object_Kind_Type) - return Mnode; - - -- Return a stabilized node for M. - -- The former M is not usuable anymore. - function Stabilize (M : Mnode; Can_Copy : Boolean := False) return Mnode; - - -- Stabilize M. - procedure Stabilize (M : in out Mnode); - - -- If M is not stable, create a variable containing the value of M. - -- M must be scalar (or access). - function Stabilize_Value (M : Mnode) return Mnode; - - -- Create a temporary of type INFO and kind KIND. - function Create_Temp (Info : Type_Info_Acc; - Kind : Object_Kind_Type := Mode_Value) - return Mnode; - package Chap3 is -- Translate the subtype of an object, since an object can define -- a subtype. @@ -1889,11 +339,6 @@ package body Translation is procedure Translate_Anonymous_Type_Definition (Def : Iir; Transient : Boolean); - -- Some expressions may be evaluated several times in different - -- contexts. Type info created for these expressions may not be - -- shared between these contexts. - procedure Destroy_Type_Info (Atype : Iir); - -- Translate subprograms for types. procedure Translate_Type_Subprograms (Decl : Iir); @@ -2470,82 +915,10 @@ package body Translation is end Chap14; package Helpers is - -- Return the value of field FIELD of lnode L that is contains - -- a pointer to a record. - -- This is equivalent to: - -- new_value (new_selected_element (new_access_element (new_value (l)), - -- field)) - function New_Value_Selected_Acc_Value (L : O_Lnode; Field : O_Fnode) - return O_Enode; - function New_Selected_Acc_Value (L : O_Lnode; Field : O_Fnode) - return O_Lnode; - - function New_Indexed_Acc_Value (L : O_Lnode; I : O_Enode) return O_Lnode; - - -- Equivalent to new_access_element (new_value (l)) - function New_Acc_Value (L : O_Lnode) return O_Lnode; - -- Copy a fat pointer. -- D and S are stabilized fat pointers. procedure Copy_Fat_Pointer (D : Mnode; S: Mnode); - -- Generate code to initialize a ghdl_index_type variable V to 0. - procedure Init_Var (V : O_Dnode); - - -- Generate code to increment/decrement a ghdl_index_type variable V. - procedure Inc_Var (V : O_Dnode); - procedure Dec_Var (V : O_Dnode); - - -- Generate code to exit from loop LABEL iff COND is true. - procedure Gen_Exit_When (Label : O_Snode; Cond : O_Enode); - - -- Create a uniq identifier. - subtype Uniq_Identifier_String is String (1 .. 11); - function Create_Uniq_Identifier return Uniq_Identifier_String; - function Create_Uniq_Identifier return O_Ident; - - -- Create a region for temporary variables. - procedure Open_Temp; - -- Create a temporary variable. - function Create_Temp (Atype : O_Tnode) return O_Dnode; - -- Create a temporary variable of ATYPE and initialize it with VALUE. - function Create_Temp_Init (Atype : O_Tnode; Value : O_Enode) - return O_Dnode; - -- Create a temporary variable of ATYPE and initialize it with the - -- address of NAME. - function Create_Temp_Ptr (Atype : O_Tnode; Name : O_Lnode) - return O_Dnode; - -- Create a mark in the temporary region for the stack2. - -- FIXME: maybe a flag must be added to CLOSE_TEMP where it is known - -- stack2 can be released. - procedure Create_Temp_Stack2_Mark; - -- Add ATYPE in the chain of types to be destroyed at the end of the - -- temp scope. - procedure Add_Transient_Type_In_Temp (Atype : Iir); - -- Close the temporary region. - procedure Close_Temp; - - -- Like Open_Temp, but will never create a declare region. To be used - -- only within a subprogram, to use the declare region of the - -- subprogram. - procedure Open_Local_Temp; - -- Destroy transient types created in a temporary region. - procedure Destroy_Local_Transient_Types; - procedure Close_Local_Temp; - - -- Return TRUE if stack2 will be released. Used for fine-tuning only - -- (return statement). - function Has_Stack2_Mark return Boolean; - -- Manually release stack2. Used for fine-tuning only. - procedure Stack2_Release; - - -- Free all old temp. - -- Used only to free memory. - procedure Free_Old_Temp; - - -- Return a ghdl_index_type literal for NUM. - function New_Index_Lit (Num : Unsigned_64) return O_Cnode; - -- Create a constant (of name ID) for string STR. -- Append a NUL terminator (to make interfaces with C easier). function Create_String (Str : String; Id : O_Ident) return O_Dnode; @@ -2636,537 +1009,13 @@ package body Translation is return O_Enode; procedure Gen_Oenode_Finish_Data_Composite (Data : in out Mnode); - type Hexstr_Type is array (Integer range 0 .. 15) of Character; - N2hex : constant Hexstr_Type := "0123456789abcdef"; - function Get_Line_Number (Target: Iir) return Natural; procedure Assoc_Filename_Line (Assoc : in out O_Assoc_List; Line : Natural); - private end Helpers; use Helpers; - function Get_Type_Info (M : Mnode) return Type_Info_Acc is - begin - return M.M1.T; - end Get_Type_Info; - - function Get_Object_Kind (M : Mnode) return Object_Kind_Type is - begin - return M.M1.K; - end Get_Object_Kind; - - function E2M (E : O_Enode; T : Type_Info_Acc; Kind : Object_Kind_Type) - return Mnode is - begin - return Mnode'(M1 => (State => Mstate_E, - Comp => T.Type_Mode in Type_Mode_Fat, - K => Kind, T => T, E => E, - Vtype => T.Ortho_Type (Kind), - Ptype => T.Ortho_Ptr_Type (Kind))); - end E2M; - - function Lv2M (L : O_Lnode; T : Type_Info_Acc; Kind : Object_Kind_Type) - return Mnode is - begin - return Mnode'(M1 => (State => Mstate_Lv, - Comp => T.Type_Mode in Type_Mode_Fat, - K => Kind, T => T, Lv => L, - Vtype => T.Ortho_Type (Kind), - Ptype => T.Ortho_Ptr_Type (Kind))); - end Lv2M; - - function Lv2M (L : O_Lnode; - Comp : Boolean; - Vtype : O_Tnode; - Ptype : O_Tnode; - T : Type_Info_Acc; Kind : Object_Kind_Type) - return Mnode is - begin - return Mnode'(M1 => (State => Mstate_Lv, - Comp => Comp, - K => Kind, T => T, Lv => L, - Vtype => Vtype, Ptype => Ptype)); - end Lv2M; - - function Lp2M (L : O_Lnode; T : Type_Info_Acc; Kind : Object_Kind_Type) - return Mnode is - begin - return Mnode'(M1 => (State => Mstate_Lp, - Comp => T.Type_Mode in Type_Mode_Fat, - K => Kind, T => T, Lp => L, - Vtype => T.Ortho_Type (Kind), - Ptype => T.Ortho_Ptr_Type (Kind))); - end Lp2M; - - function Lp2M (L : O_Lnode; - T : Type_Info_Acc; - Kind : Object_Kind_Type; - Vtype : O_Tnode; - Ptype : O_Tnode) - return Mnode is - begin - return Mnode'(M1 => (State => Mstate_Lp, - Comp => T.Type_Mode in Type_Mode_Fat, - K => Kind, T => T, Lp => L, - Vtype => Vtype, Ptype => Ptype)); - end Lp2M; - - function Lv2M (L : O_Lnode; - T : Type_Info_Acc; - Kind : Object_Kind_Type; - Vtype : O_Tnode; - Ptype : O_Tnode) - return Mnode is - begin - return Mnode'(M1 => (State => Mstate_Lv, - Comp => T.Type_Mode in Type_Mode_Fat, - K => Kind, T => T, Lv => L, - Vtype => Vtype, Ptype => Ptype)); - end Lv2M; - - function Dv2M (D : O_Dnode; - T : Type_Info_Acc; - Kind : Object_Kind_Type) - return Mnode is - begin - return Mnode'(M1 => (State => Mstate_Dv, - Comp => T.Type_Mode in Type_Mode_Fat, - K => Kind, T => T, Dv => D, - Vtype => T.Ortho_Type (Kind), - Ptype => T.Ortho_Ptr_Type (Kind))); - end Dv2M; - - function Dv2M (D : O_Dnode; - T : Type_Info_Acc; - Kind : Object_Kind_Type; - Vtype : O_Tnode; - Ptype : O_Tnode) - return Mnode is - begin - return Mnode'(M1 => (State => Mstate_Dv, - Comp => T.Type_Mode in Type_Mode_Fat, - K => Kind, T => T, Dv => D, - Vtype => Vtype, - Ptype => Ptype)); - end Dv2M; - - function Dp2M (D : O_Dnode; - T : Type_Info_Acc; - Kind : Object_Kind_Type; - Vtype : O_Tnode; - Ptype : O_Tnode) - return Mnode is - begin - return Mnode'(M1 => (State => Mstate_Dp, - Comp => T.Type_Mode in Type_Mode_Fat, - K => Kind, T => T, Dp => D, - Vtype => Vtype, Ptype => Ptype)); - end Dp2M; - - function Dp2M (D : O_Dnode; - T : Type_Info_Acc; - Kind : Object_Kind_Type) - return Mnode is - begin - return Mnode'(M1 => (State => Mstate_Dp, - Comp => T.Type_Mode in Type_Mode_Fat, - K => Kind, T => T, Dp => D, - Vtype => T.Ortho_Type (Kind), - Ptype => T.Ortho_Ptr_Type (Kind))); - end Dp2M; - - function M2Lv (M : Mnode) return O_Lnode is - begin - case M.M1.State is - when Mstate_E => - case Get_Type_Info (M).Type_Mode is - when Type_Mode_Thin => - -- Scalar to var is not possible. - -- FIXME: This is not coherent with the fact that this - -- conversion is possible when M is stabilized. - raise Internal_Error; - when Type_Mode_Fat => - return New_Access_Element (M.M1.E); - when Type_Mode_Unknown => - raise Internal_Error; - end case; - when Mstate_Lp => - return New_Acc_Value (M.M1.Lp); - when Mstate_Lv => - return M.M1.Lv; - when Mstate_Dp => - return New_Acc_Value (New_Obj (M.M1.Dp)); - when Mstate_Dv => - return New_Obj (M.M1.Dv); - when Mstate_Null - | Mstate_Bad => - raise Internal_Error; - end case; - end M2Lv; - - function M2Lp (M : Mnode) return O_Lnode is - begin - case M.M1.State is - when Mstate_E => - raise Internal_Error; - when Mstate_Lp => - return M.M1.Lp; - when Mstate_Dp => - return New_Obj (M.M1.Dp); - when Mstate_Lv => - if Get_Type_Info (M).Type_Mode in Type_Mode_Fat then - return New_Obj - (Create_Temp_Init (M.M1.Ptype, - New_Address (M.M1.Lv, M.M1.Ptype))); - else - raise Internal_Error; - end if; - when Mstate_Dv - | Mstate_Null - | Mstate_Bad => - raise Internal_Error; - end case; - end M2Lp; - - function M2Dp (M : Mnode) return O_Dnode is - begin - case M.M1.State is - when Mstate_Dp => - return M.M1.Dp; - when Mstate_Dv => - return Create_Temp_Init - (M.M1.Ptype, New_Address (New_Obj (M.M1.Dv), M.M1.Ptype)); - - when others => - raise Internal_Error; - end case; - end M2Dp; - - function M2Dv (M : Mnode) return O_Dnode is - begin - case M.M1.State is - when Mstate_Dv => - return M.M1.Dv; - when others => - raise Internal_Error; - end case; - end M2Dv; - - function T2M (Atype : Iir; Kind : Object_Kind_Type) return Mnode - is - T : Type_Info_Acc; - begin - T := Get_Info (Atype); - return Mnode'(M1 => (State => Mstate_Null, - Comp => T.Type_Mode in Type_Mode_Fat, - K => Kind, T => T, - Vtype => T.Ortho_Type (Kind), - Ptype => T.Ortho_Ptr_Type (Kind))); - end T2M; - - function Stabilize (M : Mnode; Can_Copy : Boolean := False) return Mnode - is - D : O_Dnode; - K : Object_Kind_Type; - begin - K := M.M1.K; - case M.M1.State is - when Mstate_E => - if M.M1.Comp then - D := Create_Temp_Init (M.M1.Ptype, M.M1.E); - return Mnode'(M1 => (State => Mstate_Dp, - Comp => M.M1.Comp, - K => K, T => M.M1.T, Dp => D, - Vtype => M.M1.Vtype, Ptype => M.M1.Ptype)); - else - D := Create_Temp_Init (M.M1.Vtype, M.M1.E); - return Mnode'(M1 => (State => Mstate_Dv, - Comp => M.M1.Comp, - K => K, T => M.M1.T, Dv => D, - Vtype => M.M1.Vtype, Ptype => M.M1.Ptype)); - end if; - when Mstate_Lp => - D := Create_Temp_Init (M.M1.Ptype, New_Value (M.M1.Lp)); - return Mnode'(M1 => (State => Mstate_Dp, - Comp => M.M1.Comp, - K => K, T => M.M1.T, Dp => D, - Vtype => M.M1.Vtype, Ptype => M.M1.Ptype)); - when Mstate_Lv => - if M.M1.Ptype = O_Tnode_Null then - if not Can_Copy then - raise Internal_Error; - end if; - D := Create_Temp_Init (M.M1.Vtype, New_Value (M.M1.Lv)); - return Mnode'(M1 => (State => Mstate_Dv, - Comp => M.M1.Comp, - K => K, T => M.M1.T, Dv => D, - Vtype => M.M1.Vtype, Ptype => M.M1.Ptype)); - - else - D := Create_Temp_Ptr (M.M1.Ptype, M.M1.Lv); - return Mnode'(M1 => (State => Mstate_Dp, - Comp => M.M1.Comp, - K => K, T => M.M1.T, Dp => D, - Vtype => M.M1.Vtype, Ptype => M.M1.Ptype)); - end if; - when Mstate_Dp - | Mstate_Dv => - return M; - when Mstate_Bad - | Mstate_Null => - raise Internal_Error; - end case; - end Stabilize; - - procedure Stabilize (M : in out Mnode) is - begin - M := Stabilize (M); - end Stabilize; - - function Stabilize_Value (M : Mnode) return Mnode - is - D : O_Dnode; - E : O_Enode; - begin - -- M must be scalar or access. - if M.M1.Comp then - raise Internal_Error; - end if; - case M.M1.State is - when Mstate_E => - E := M.M1.E; - when Mstate_Lp => - E := New_Value (New_Acc_Value (M.M1.Lp)); - when Mstate_Lv => - E := New_Value (M.M1.Lv); - when Mstate_Dp - | Mstate_Dv => - return M; - when Mstate_Bad - | Mstate_Null => - raise Internal_Error; - end case; - - D := Create_Temp_Init (M.M1.Vtype, E); - return Mnode'(M1 => (State => Mstate_Dv, - Comp => M.M1.Comp, - K => M.M1.K, T => M.M1.T, Dv => D, - Vtype => M.M1.Vtype, Ptype => M.M1.Ptype)); - end Stabilize_Value; - - function M2E (M : Mnode) return O_Enode is - begin - case M.M1.State is - when Mstate_E => - return M.M1.E; - when Mstate_Lp => - case M.M1.T.Type_Mode is - when Type_Mode_Unknown => - raise Internal_Error; - when Type_Mode_Thin => - return New_Value (New_Acc_Value (M.M1.Lp)); - when Type_Mode_Fat => - return New_Value (M.M1.Lp); - end case; - when Mstate_Dp => - case M.M1.T.Type_Mode is - when Type_Mode_Unknown => - raise Internal_Error; - when Type_Mode_Thin => - return New_Value (New_Acc_Value (New_Obj (M.M1.Dp))); - when Type_Mode_Fat => - return New_Value (New_Obj (M.M1.Dp)); - end case; - when Mstate_Lv => - case M.M1.T.Type_Mode is - when Type_Mode_Unknown => - raise Internal_Error; - when Type_Mode_Thin => - return New_Value (M.M1.Lv); - when Type_Mode_Fat => - return New_Address (M.M1.Lv, M.M1.Ptype); - end case; - when Mstate_Dv => - case M.M1.T.Type_Mode is - when Type_Mode_Unknown => - raise Internal_Error; - when Type_Mode_Thin => - return New_Value (New_Obj (M.M1.Dv)); - when Type_Mode_Fat => - return New_Address (New_Obj (M.M1.Dv), M.M1.Ptype); - end case; - when Mstate_Bad - | Mstate_Null => - raise Internal_Error; - end case; - end M2E; - - function M2Addr (M : Mnode) return O_Enode is - begin - case M.M1.State is - when Mstate_Lp => - return New_Value (M.M1.Lp); - when Mstate_Dp => - return New_Value (New_Obj (M.M1.Dp)); - when Mstate_Lv => - return New_Address (M.M1.Lv, M.M1.Ptype); - when Mstate_Dv => - return New_Address (New_Obj (M.M1.Dv), M.M1.Ptype); - when Mstate_E => - if M.M1.Comp then - return M.M1.E; - else - raise Internal_Error; - end if; - when Mstate_Bad - | Mstate_Null => - raise Internal_Error; - end case; - end M2Addr; - --- function Is_Null (M : Mnode) return Boolean is --- begin --- return M.M1.State = Mstate_Null; --- end Is_Null; - - function Is_Stable (M : Mnode) return Boolean is - begin - case M.M1.State is - when Mstate_Dp - | Mstate_Dv => - return True; - when others => - return False; - end case; - end Is_Stable; - --- function Varv2M --- (Var : Var_Type; Vtype : Type_Info_Acc; Mode : Object_Kind_Type) --- return Mnode is --- begin --- return Lv2M (Get_Var (Var), Vtype, Mode); --- end Varv2M; - - function Varv2M (Var : Var_Type; - Var_Type : Type_Info_Acc; - Mode : Object_Kind_Type; - Vtype : O_Tnode; - Ptype : O_Tnode) - return Mnode is - begin - return Lv2M (Get_Var (Var), Var_Type, Mode, Vtype, Ptype); - end Varv2M; - - -- Convert a Lnode for a sub object to an MNODE. - function Lo2M (L : O_Lnode; Vtype : Type_Info_Acc; Mode : Object_Kind_Type) - return Mnode is - begin - case Vtype.Type_Mode is - when Type_Mode_Scalar - | Type_Mode_Acc - | Type_Mode_File - | Type_Mode_Fat_Array - | Type_Mode_Fat_Acc => - return Lv2M (L, Vtype, Mode); - when Type_Mode_Array - | Type_Mode_Record - | Type_Mode_Protected => - if Is_Complex_Type (Vtype) then - return Lp2M (L, Vtype, Mode); - else - return Lv2M (L, Vtype, Mode); - end if; - when Type_Mode_Unknown => - raise Internal_Error; - end case; - end Lo2M; - - function Lo2M (D : O_Dnode; Vtype : Type_Info_Acc; Mode : Object_Kind_Type) - return Mnode is - begin - case Vtype.Type_Mode is - when Type_Mode_Scalar - | Type_Mode_Acc - | Type_Mode_File - | Type_Mode_Fat_Array - | Type_Mode_Fat_Acc => - return Dv2M (D, Vtype, Mode); - when Type_Mode_Array - | Type_Mode_Record - | Type_Mode_Protected => - if Is_Complex_Type (Vtype) then - return Dp2M (D, Vtype, Mode); - else - return Dv2M (D, Vtype, Mode); - end if; - when Type_Mode_Unknown => - raise Internal_Error; - end case; - end Lo2M; - - function Get_Var - (Var : Var_Type; Vtype : Type_Info_Acc; Mode : Object_Kind_Type) - return Mnode - is - L : O_Lnode; - D : O_Dnode; - Stable : Boolean; - begin - -- FIXME: there may be Vv2M and Vp2M. - Stable := Is_Var_Stable (Var); - if Stable then - D := Get_Var_Label (Var); - else - L := Get_Var (Var); - end if; - case Vtype.Type_Mode is - when Type_Mode_Scalar - | Type_Mode_Acc - | Type_Mode_File - | Type_Mode_Fat_Array - | Type_Mode_Fat_Acc => - if Stable then - return Dv2M (D, Vtype, Mode); - else - return Lv2M (L, Vtype, Mode); - end if; - when Type_Mode_Array - | Type_Mode_Record - | Type_Mode_Protected => - if Is_Complex_Type (Vtype) then - if Stable then - return Dp2M (D, Vtype, Mode); - else - return Lp2M (L, Vtype, Mode); - end if; - else - if Stable then - return Dv2M (D, Vtype, Mode); - else - return Lv2M (L, Vtype, Mode); - end if; - end if; - when Type_Mode_Unknown => - raise Internal_Error; - end case; - end Get_Var; - - function Create_Temp (Info : Type_Info_Acc; - Kind : Object_Kind_Type := Mode_Value) - return Mnode is - begin - if Is_Complex_Type (Info) - and then Info.Type_Mode /= Type_Mode_Fat_Array - then - -- For a complex and constrained object, we just allocate - -- a pointer to the object. - return Dp2M (Create_Temp (Info.Ortho_Ptr_Type (Kind)), Info, Kind); - else - return Dv2M (Create_Temp (Info.Ortho_Type (Kind)), Info, Kind); - end if; - end Create_Temp; function Translate_Foreign_Id (Decl : Iir) return Foreign_Info_Type is @@ -3304,31 +1153,6 @@ package body Translation is end Translate_Foreign_Id; package body Helpers is - function New_Value_Selected_Acc_Value (L : O_Lnode; Field : O_Fnode) - return O_Enode is - begin - return New_Value - (New_Selected_Element (New_Access_Element (New_Value (L)), Field)); - end New_Value_Selected_Acc_Value; - - function New_Selected_Acc_Value (L : O_Lnode; Field : O_Fnode) - return O_Lnode is - begin - return New_Selected_Element - (New_Access_Element (New_Value (L)), Field); - end New_Selected_Acc_Value; - - function New_Indexed_Acc_Value (L : O_Lnode; I : O_Enode) return O_Lnode - is - begin - return New_Indexed_Element (New_Access_Element (New_Value (L)), I); - end New_Indexed_Acc_Value; - - function New_Acc_Value (L : O_Lnode) return O_Lnode is - begin - return New_Access_Element (New_Value (L)); - end New_Acc_Value; - procedure Copy_Fat_Pointer (D : Mnode; S: Mnode) is begin @@ -3338,290 +1162,6 @@ package body Translation is M2Addr (Chap3.Get_Array_Bounds (S))); end Copy_Fat_Pointer; - procedure Inc_Var (V : O_Dnode) is - begin - New_Assign_Stmt (New_Obj (V), - New_Dyadic_Op (ON_Add_Ov, - New_Obj_Value (V), - New_Lit (Ghdl_Index_1))); - end Inc_Var; - - procedure Dec_Var (V : O_Dnode) is - begin - New_Assign_Stmt (New_Obj (V), - New_Dyadic_Op (ON_Sub_Ov, - New_Obj_Value (V), - New_Lit (Ghdl_Index_1))); - end Dec_Var; - - procedure Init_Var (V : O_Dnode) is - begin - New_Assign_Stmt (New_Obj (V), New_Lit (Ghdl_Index_0)); - end Init_Var; - - procedure Gen_Exit_When (Label : O_Snode; Cond : O_Enode) - is - If_Blk : O_If_Block; - begin - Start_If_Stmt (If_Blk, Cond); - New_Exit_Stmt (Label); - Finish_If_Stmt (If_Blk); - end Gen_Exit_When; - - Uniq_Id : Natural := 0; - - function Create_Uniq_Identifier return Uniq_Identifier_String - is - Str : Uniq_Identifier_String; - Val : Natural; - begin - Str (1 .. 3) := "_UI"; - Val := Uniq_Id; - Uniq_Id := Uniq_Id + 1; - for I in reverse 4 .. 11 loop - Str (I) := N2hex (Val mod 16); - Val := Val / 16; - end loop; - return Str; - end Create_Uniq_Identifier; - - function Create_Uniq_Identifier return O_Ident is - begin - return Get_Identifier (Create_Uniq_Identifier); - end Create_Uniq_Identifier; - - -- Create a temporary variable. - type Temp_Level_Type; - type Temp_Level_Acc is access Temp_Level_Type; - type Temp_Level_Type is record - Prev : Temp_Level_Acc; - Level : Natural; - Id : Natural; - Emitted : Boolean; - Stack2_Mark : O_Dnode; - Transient_Types : Iir; - end record; - -- Current level. - Temp_Level : Temp_Level_Acc := null; - - -- List of unused temp_level_type structures. To be faster, they are - -- never deallocated. - Old_Level : Temp_Level_Acc := null; - - -- If set, emit comments for open_temp/close_temp. - Flag_Debug_Temp : constant Boolean := False; - - procedure Open_Temp - is - L : Temp_Level_Acc; - begin - if Old_Level /= null then - L := Old_Level; - Old_Level := L.Prev; - else - L := new Temp_Level_Type; - end if; - L.all := (Prev => Temp_Level, - Level => 0, - Id => 0, - Emitted => False, - Stack2_Mark => O_Dnode_Null, - Transient_Types => Null_Iir); - if Temp_Level /= null then - L.Level := Temp_Level.Level + 1; - end if; - Temp_Level := L; - if Flag_Debug_Temp then - New_Debug_Comment_Stmt - ("Open_Temp level " & Natural'Image (L.Level)); - end if; - end Open_Temp; - - procedure Open_Local_Temp is - begin - Open_Temp; - Temp_Level.Emitted := True; - end Open_Local_Temp; - - procedure Add_Transient_Type_In_Temp (Atype : Iir) - is - Type_Info : Type_Info_Acc; - begin - Type_Info := Get_Info (Atype); - Type_Info.Type_Transient_Chain := Temp_Level.Transient_Types; - Temp_Level.Transient_Types := Atype; - end Add_Transient_Type_In_Temp; - - procedure Release_Transient_Types (Chain : in out Iir) is - N_Atype : Iir; - begin - while Chain /= Null_Iir loop - N_Atype := Get_Info (Chain).Type_Transient_Chain; - Chap3.Destroy_Type_Info (Chain); - Chain := N_Atype; - end loop; - end Release_Transient_Types; - - procedure Destroy_Local_Transient_Types is - begin - Release_Transient_Types (Temp_Level.Transient_Types); - end Destroy_Local_Transient_Types; - - function Has_Stack2_Mark return Boolean is - begin - return Temp_Level.Stack2_Mark /= O_Dnode_Null; - end Has_Stack2_Mark; - - procedure Stack2_Release - is - Constr : O_Assoc_List; - begin - if Temp_Level.Stack2_Mark /= O_Dnode_Null then - Start_Association (Constr, Ghdl_Stack2_Release); - New_Association (Constr, - New_Value (New_Obj (Temp_Level.Stack2_Mark))); - New_Procedure_Call (Constr); - Temp_Level.Stack2_Mark := O_Dnode_Null; - end if; - end Stack2_Release; - - procedure Close_Temp - is - L : Temp_Level_Acc; - begin - if Temp_Level = null then - -- OPEN_TEMP was not called. - raise Internal_Error; - end if; - if Flag_Debug_Temp then - New_Debug_Comment_Stmt - ("Close_Temp level " & Natural'Image (Temp_Level.Level)); - end if; - - if Temp_Level.Stack2_Mark /= O_Dnode_Null then - Stack2_Release; - end if; - if Temp_Level.Emitted then - Finish_Declare_Stmt; - end if; - - -- Destroy transcient types. - Release_Transient_Types (Temp_Level.Transient_Types); - - -- Unlink temp_level. - L := Temp_Level; - Temp_Level := L.Prev; - L.Prev := Old_Level; - Old_Level := L; - end Close_Temp; - - procedure Close_Local_Temp is - begin - Temp_Level.Emitted := False; - Close_Temp; - end Close_Local_Temp; - - procedure Free_Old_Temp - is - procedure Free is new Ada.Unchecked_Deallocation - (Temp_Level_Type, Temp_Level_Acc); - T : Temp_Level_Acc; - begin - if Temp_Level /= null then - raise Internal_Error; - end if; - loop - T := Old_Level; - exit when T = null; - Old_Level := Old_Level.Prev; - Free (T); - end loop; - end Free_Old_Temp; - - procedure Create_Temp_Stack2_Mark - is - Constr : O_Assoc_List; - begin - if Temp_Level.Stack2_Mark /= O_Dnode_Null then - -- Only the first mark in a region is registred. - -- The release operation frees the memory allocated after the - -- first mark. - return; - end if; - Temp_Level.Stack2_Mark := Create_Temp (Ghdl_Ptr_Type); - Start_Association (Constr, Ghdl_Stack2_Mark); - New_Assign_Stmt (New_Obj (Temp_Level.Stack2_Mark), - New_Function_Call (Constr)); - end Create_Temp_Stack2_Mark; - - function Create_Temp (Atype : O_Tnode) return O_Dnode - is - Str : String (1 .. 12); - Val : Natural; - Res : O_Dnode; - P : Natural; - begin - if Temp_Level = null then - -- OPEN_TEMP was never called. - raise Internal_Error; - -- This is an hack, just to allow array subtype to array type - -- conversion. - --New_Var_Decl - -- (Res, Create_Uniq_Identifier, O_Storage_Private, Atype); - --return Res; - else - if not Temp_Level.Emitted then - Temp_Level.Emitted := True; - Start_Declare_Stmt; - end if; - end if; - Val := Temp_Level.Id; - Temp_Level.Id := Temp_Level.Id + 1; - P := Str'Last; - loop - Str (P) := Character'Val (Val mod 10 + Character'Pos ('0')); - Val := Val / 10; - P := P - 1; - exit when Val = 0; - end loop; - Str (P) := '_'; - P := P - 1; - Val := Temp_Level.Level; - loop - Str (P) := Character'Val (Val mod 10 + Character'Pos ('0')); - Val := Val / 10; - P := P - 1; - exit when Val = 0; - end loop; - Str (P) := 'T'; - --Str (12) := Nul; - New_Var_Decl - (Res, Get_Identifier (Str (P .. Str'Last)), O_Storage_Local, Atype); - return Res; - end Create_Temp; - - function Create_Temp_Init (Atype : O_Tnode; Value : O_Enode) - return O_Dnode - is - Res : O_Dnode; - begin - Res := Create_Temp (Atype); - New_Assign_Stmt (New_Obj (Res), Value); - return Res; - end Create_Temp_Init; - - function Create_Temp_Ptr (Atype : O_Tnode; Name : O_Lnode) - return O_Dnode is - begin - return Create_Temp_Init (Atype, New_Address (Name, Atype)); - end Create_Temp_Ptr; - - -- Return a ghdl_index_type literal for NUM. - function New_Index_Lit (Num : Unsigned_64) return O_Cnode is - begin - return New_Unsigned_Literal (Ghdl_Index_Type, Num); - end New_Index_Lit; - -- Convert NAME into a STRING_CST. -- Append a NUL terminator (to make interfaces with C easier). function Create_String_Type (Str : String) return O_Tnode is @@ -4039,8 +1579,8 @@ package body Translation is is Info : Block_Info_Acc; Interface_List : O_Inter_List; - Instance : Chap2.Subprg_Instance_Type; - Prev_Subprg_Instance : Chap2.Subprg_Instance_Stack; + Instance : Subprgs.Subprg_Instance_Type; + Prev_Subprg_Instance : Subprgs.Subprg_Instance_Stack; begin Info := Add_Info (Entity, Kind_Block); Chap1.Start_Block_Decl (Entity); @@ -4058,15 +1598,15 @@ package body Translation is Pop_Instance_Factory (Info.Block_Scope'Access); - Chap2.Push_Subprg_Instance (Info.Block_Scope'Access, - Info.Block_Decls_Ptr_Type, - Wki_Instance, - Prev_Subprg_Instance); + Subprgs.Push_Subprg_Instance (Info.Block_Scope'Access, + Info.Block_Decls_Ptr_Type, + Wki_Instance, + Prev_Subprg_Instance); -- Entity elaborator. Start_Procedure_Decl (Interface_List, Create_Identifier ("ELAB"), Global_Storage); - Chap2.Add_Subprg_Instance_Interfaces (Interface_List, Instance); + Subprgs.Add_Subprg_Instance_Interfaces (Interface_List, Instance); Finish_Subprogram_Decl (Interface_List, Info.Block_Elab_Subprg); -- Entity dependences elaborator. @@ -4097,11 +1637,11 @@ package body Translation is -- Elaborator Body. Start_Subprogram_Body (Info.Block_Elab_Subprg); Push_Local_Factory; - Chap2.Start_Subprg_Instance_Use (Instance); + Subprgs.Start_Subprg_Instance_Use (Instance); New_Debug_Line_Stmt (Get_Line_Number (Entity)); Chap9.Elab_Block_Declarations (Entity, Entity); - Chap2.Finish_Subprg_Instance_Use (Instance); + Subprgs.Finish_Subprg_Instance_Use (Instance); Pop_Local_Factory; Finish_Subprogram_Body; @@ -4113,19 +1653,19 @@ package body Translation is Start_Procedure_Decl (Interface_List, Create_Identifier ("_INIT"), Global_Storage); - Chap2.Add_Subprg_Instance_Interfaces + Subprgs.Add_Subprg_Instance_Interfaces (Interface_List, Instance); Finish_Subprogram_Decl (Interface_List, Init_Subprg); Start_Subprogram_Body (Init_Subprg); - Chap2.Start_Subprg_Instance_Use (Instance); + Subprgs.Start_Subprg_Instance_Use (Instance); Translate_Entity_Init (Entity); - Chap2.Finish_Subprg_Instance_Use (Instance); + Subprgs.Finish_Subprg_Instance_Use (Instance); Finish_Subprogram_Body; end; end if; end if; - Chap2.Pop_Subprg_Instance (Wki_Instance, Prev_Subprg_Instance); + Subprgs.Pop_Subprg_Instance (Wki_Instance, Prev_Subprg_Instance); end Translate_Entity_Declaration; -- Push scope for architecture ARCH via INSTANCE, and for its @@ -4162,7 +1702,7 @@ package body Translation is Constr : O_Assoc_List; Instance : O_Dnode; Var_Arch_Instance : O_Dnode; - Prev_Subprg_Instance : Chap2.Subprg_Instance_Stack; + Prev_Subprg_Instance : Subprgs.Subprg_Instance_Stack; begin if Get_Foreign_Flag (Arch) then Error_Msg_Sem ("FOREIGN architectures are not yet handled", Arch); @@ -4210,10 +1750,10 @@ package body Translation is end if; -- Create process subprograms. - Chap2.Push_Subprg_Instance (Info.Block_Scope'Access, - Info.Block_Decls_Ptr_Type, - Wki_Instance, - Prev_Subprg_Instance); + Subprgs.Push_Subprg_Instance (Info.Block_Scope'Access, + Info.Block_Decls_Ptr_Type, + Wki_Instance, + Prev_Subprg_Instance); Set_Scope_Via_Field (Entity_Info.Block_Scope, Info.Block_Parent_Field, Info.Block_Scope'Access); @@ -4221,7 +1761,7 @@ package body Translation is Chap9.Translate_Block_Subprograms (Arch, Arch); Clear_Scope (Entity_Info.Block_Scope); - Chap2.Pop_Subprg_Instance (Wki_Instance, Prev_Subprg_Instance); + Subprgs.Pop_Subprg_Instance (Wki_Instance, Prev_Subprg_Instance); -- Elaborator body. Start_Subprogram_Body (Info.Block_Elab_Subprg); @@ -4805,6 +2345,8 @@ package body Translation is end Chap1; package body Chap2 is + use Trans.Subprgs; + procedure Elab_Package (Spec : Iir_Package_Declaration); type Name_String_Xlat_Array is array (Name_Id range <>) of @@ -5032,7 +2574,7 @@ package body Translation is -- Instance parameter if any. if not Get_Foreign_Flag (Spec) then - Chap2.Create_Subprg_Instance (Interface_List, Spec); + Subprgs.Create_Subprg_Instance (Interface_List, Spec); end if; -- Translate interfaces. @@ -5152,7 +2694,7 @@ package body Translation is Has_Return : Boolean; - Prev_Subprg_Instances : Chap2.Subprg_Instance_Stack; + Prev_Subprg_Instances : Subprgs.Subprg_Instance_Stack; begin -- Do not translate body for foreign subprograms. if Get_Foreign_Flag (Spec) then @@ -5217,20 +2759,20 @@ package body Translation is Rtis.Generate_Subprogram_Body (Subprg); -- Local frame - Chap2.Push_Subprg_Instance + Subprgs.Push_Subprg_Instance (Info.Subprg_Frame_Scope'Access, Frame_Ptr_Type, Wki_Upframe, Prev_Subprg_Instances); -- Link to previous frame - Chap2.Start_Prev_Subprg_Instance_Use_Via_Field + Subprgs.Start_Prev_Subprg_Instance_Use_Via_Field (Prev_Subprg_Instances, Upframe_Field); Chap4.Translate_Declaration_Chain_Subprograms (Subprg); -- Link to previous frame - Chap2.Finish_Prev_Subprg_Instance_Use_Via_Field + Subprgs.Finish_Prev_Subprg_Instance_Use_Via_Field (Prev_Subprg_Instances, Upframe_Field); -- Local frame - Chap2.Pop_Subprg_Instance (Wki_Upframe, Prev_Subprg_Instances); + Subprgs.Pop_Subprg_Instance (Wki_Upframe, Prev_Subprg_Instances); end if; -- Create the body @@ -5244,7 +2786,7 @@ package body Translation is -- Code has access to local (and outer) variables. -- FIXME: this is not necessary if Has_Nested is set - Chap2.Clear_Subprg_Instance (Prev_Subprg_Instances); + Subprgs.Clear_Subprg_Instance (Prev_Subprg_Instances); -- There is a local scope for temporaries. Open_Local_Temp; @@ -5266,7 +2808,7 @@ package body Translation is Set_Scope_Via_Param_Ptr (Info.Subprg_Frame_Scope, Frame_Ptr); -- Set UPFRAME. - Chap2.Set_Subprg_Instance_Field + Subprgs.Set_Subprg_Instance_Field (Frame_Ptr, Upframe_Field, Info.Subprg_Instance); if Info.Res_Record_Type /= O_Tnode_Null then @@ -5393,7 +2935,7 @@ package body Translation is Clear_Scope (Info.Subprg_Frame_Scope); end if; - Chap2.Pop_Subprg_Instance (O_Ident_Nul, Prev_Subprg_Instances); + Subprgs.Pop_Subprg_Instance (O_Ident_Nul, Prev_Subprg_Instances); Close_Local_Temp; Pop_Local_Factory; @@ -5409,7 +2951,7 @@ package body Translation is Header : constant Iir := Get_Package_Header (Decl); Info : Ortho_Info_Acc; Interface_List : O_Inter_List; - Prev_Subprg_Instance : Chap2.Subprg_Instance_Stack; + Prev_Subprg_Instance : Subprgs.Subprg_Instance_Stack; begin Info := Add_Info (Decl, Kind_Package); @@ -5435,7 +2977,7 @@ package body Translation is (Info.Package_Body_Scope'Access, Info.Package_Body_Ptr_Type); -- Each subprogram has a body instance argument. - Chap2.Push_Subprg_Instance + Subprgs.Push_Subprg_Instance (Info.Package_Body_Scope'Access, Info.Package_Body_Ptr_Type, Wki_Instance, Prev_Subprg_Instance); else @@ -5450,23 +2992,23 @@ package body Translation is -- Declare elaborator for the body. Start_Procedure_Decl (Interface_List, Create_Identifier ("ELAB_BODY"), Global_Storage); - Chap2.Add_Subprg_Instance_Interfaces + Subprgs.Add_Subprg_Instance_Interfaces (Interface_List, Info.Package_Elab_Body_Instance); Finish_Subprogram_Decl (Interface_List, Info.Package_Elab_Body_Subprg); if Is_Uninstantiated_Package (Decl) then - Chap2.Pop_Subprg_Instance (Wki_Instance, Prev_Subprg_Instance); + Subprgs.Pop_Subprg_Instance (Wki_Instance, Prev_Subprg_Instance); -- The spec elaborator has a spec instance argument. - Chap2.Push_Subprg_Instance + Subprgs.Push_Subprg_Instance (Info.Package_Spec_Scope'Access, Info.Package_Spec_Ptr_Type, Wki_Instance, Prev_Subprg_Instance); end if; Start_Procedure_Decl (Interface_List, Create_Identifier ("ELAB_SPEC"), Global_Storage); - Chap2.Add_Subprg_Instance_Interfaces + Subprgs.Add_Subprg_Instance_Interfaces (Interface_List, Info.Package_Elab_Spec_Instance); Finish_Subprogram_Decl (Interface_List, Info.Package_Elab_Spec_Subprg); @@ -5482,7 +3024,7 @@ package body Translation is end if; if Is_Uninstantiated_Package (Decl) then - Chap2.Pop_Subprg_Instance (Wki_Instance, Prev_Subprg_Instance); + Subprgs.Pop_Subprg_Instance (Wki_Instance, Prev_Subprg_Instance); end if; Save_Local_Identifier (Info.Package_Local_Id); end Translate_Package_Declaration; @@ -5491,7 +3033,7 @@ package body Translation is is Spec : constant Iir_Package_Declaration := Get_Package (Decl); Info : constant Ortho_Info_Acc := Get_Info (Spec); - Prev_Subprg_Instance : Chap2.Subprg_Instance_Stack; + Prev_Subprg_Instance : Subprgs.Subprg_Instance_Stack; begin -- Translate declarations. if Is_Uninstantiated_Package (Spec) then @@ -5523,7 +3065,7 @@ package body Translation is end if; if Is_Uninstantiated_Package (Spec) then - Chap2.Push_Subprg_Instance + Subprgs.Push_Subprg_Instance (Info.Package_Body_Scope'Access, Info.Package_Body_Ptr_Type, Wki_Instance, Prev_Subprg_Instance); Set_Scope_Via_Field (Info.Package_Spec_Scope, @@ -5535,7 +3077,7 @@ package body Translation is if Is_Uninstantiated_Package (Spec) then Clear_Scope (Info.Package_Spec_Scope); - Chap2.Pop_Subprg_Instance (Wki_Instance, Prev_Subprg_Instance); + Subprgs.Pop_Subprg_Instance (Wki_Instance, Prev_Subprg_Instance); end if; Elab_Package_Body (Spec, Decl); @@ -5550,7 +3092,7 @@ package body Translation is begin Start_Subprogram_Body (Info.Package_Elab_Spec_Subprg); Push_Local_Factory; - Chap2.Start_Subprg_Instance_Use (Info.Package_Elab_Spec_Instance); + Subprgs.Start_Subprg_Instance_Use (Info.Package_Elab_Spec_Instance); Elab_Dependence (Get_Design_Unit (Spec)); @@ -5572,7 +3114,7 @@ package body Translation is Chap4.Elab_Declaration_Chain (Spec, Final); Close_Temp; - Chap2.Finish_Subprg_Instance_Use (Info.Package_Elab_Spec_Instance); + Subprgs.Finish_Subprg_Instance_Use (Info.Package_Elab_Spec_Instance); Pop_Local_Factory; Finish_Subprogram_Body; end Elab_Package; @@ -5586,7 +3128,7 @@ package body Translation is begin Start_Subprogram_Body (Info.Package_Elab_Body_Subprg); Push_Local_Factory; - Chap2.Start_Subprg_Instance_Use (Info.Package_Elab_Body_Instance); + Subprgs.Start_Subprg_Instance_Use (Info.Package_Elab_Body_Instance); if Is_Uninstantiated_Package (Spec) then Set_Scope_Via_Field (Info.Package_Spec_Scope, @@ -5619,7 +3161,7 @@ package body Translation is Clear_Scope (Info.Package_Spec_Scope); end if; - Chap2.Finish_Subprg_Instance_Use (Info.Package_Elab_Body_Instance); + Subprgs.Finish_Subprg_Instance_Use (Info.Package_Elab_Body_Instance); Pop_Local_Factory; Finish_Subprogram_Body; end Elab_Package_Body; @@ -6029,157 +3571,6 @@ package body Translation is (Scope.all, Create_Identifier ("INSTPTR"), Ptr_Type); end Declare_Inst_Type_And_Ptr; - procedure Clear_Subprg_Instance (Prev : out Subprg_Instance_Stack) is - begin - Prev := Current_Subprg_Instance; - Current_Subprg_Instance := Null_Subprg_Instance_Stack; - end Clear_Subprg_Instance; - - procedure Push_Subprg_Instance (Scope : Var_Scope_Acc; - Ptr_Type : O_Tnode; - Ident : O_Ident; - Prev : out Subprg_Instance_Stack) - is - begin - Prev := Current_Subprg_Instance; - Current_Subprg_Instance := (Scope => Scope, - Ptr_Type => Ptr_Type, - Ident => Ident); - end Push_Subprg_Instance; - - function Has_Current_Subprg_Instance return Boolean is - begin - return Current_Subprg_Instance.Ptr_Type /= O_Tnode_Null; - end Has_Current_Subprg_Instance; - - procedure Pop_Subprg_Instance (Ident : O_Ident; - Prev : Subprg_Instance_Stack) - is - begin - if Is_Equal (Current_Subprg_Instance.Ident, Ident) then - Current_Subprg_Instance := Prev; - else - -- POP does not match with a push. - raise Internal_Error; - end if; - end Pop_Subprg_Instance; - - procedure Add_Subprg_Instance_Interfaces - (Interfaces : in out O_Inter_List; Vars : out Subprg_Instance_Type) - is - begin - if Has_Current_Subprg_Instance then - Vars.Scope := Current_Subprg_Instance.Scope; - Vars.Inter_Type := Current_Subprg_Instance.Ptr_Type; - New_Interface_Decl - (Interfaces, Vars.Inter, - Current_Subprg_Instance.Ident, - Current_Subprg_Instance.Ptr_Type); - else - Vars := Null_Subprg_Instance; - end if; - end Add_Subprg_Instance_Interfaces; - - procedure Add_Subprg_Instance_Field (Field : out O_Fnode) is - begin - if Has_Current_Subprg_Instance then - Field := Add_Instance_Factory_Field - (Current_Subprg_Instance.Ident, - Current_Subprg_Instance.Ptr_Type); - else - Field := O_Fnode_Null; - end if; - end Add_Subprg_Instance_Field; - - function Has_Subprg_Instance (Vars : Subprg_Instance_Type) - return Boolean is - begin - return Vars.Inter /= O_Dnode_Null; - end Has_Subprg_Instance; - - function Get_Subprg_Instance (Vars : Subprg_Instance_Type) - return O_Enode is - begin - pragma Assert (Has_Subprg_Instance (Vars)); - return New_Address (Get_Instance_Ref (Vars.Scope.all), - Vars.Inter_Type); - end Get_Subprg_Instance; - - procedure Add_Subprg_Instance_Assoc - (Assocs : in out O_Assoc_List; Vars : Subprg_Instance_Type) is - begin - if Has_Subprg_Instance (Vars) then - New_Association (Assocs, Get_Subprg_Instance (Vars)); - end if; - end Add_Subprg_Instance_Assoc; - - procedure Set_Subprg_Instance_Field - (Var : O_Dnode; Field : O_Fnode; Vars : Subprg_Instance_Type) - is - begin - if Has_Subprg_Instance (Vars) then - New_Assign_Stmt (New_Selected_Acc_Value (New_Obj (Var), Field), - New_Obj_Value (Vars.Inter)); - end if; - end Set_Subprg_Instance_Field; - - procedure Start_Subprg_Instance_Use (Vars : Subprg_Instance_Type) is - begin - if Has_Subprg_Instance (Vars) then - Set_Scope_Via_Param_Ptr (Vars.Scope.all, Vars.Inter); - end if; - end Start_Subprg_Instance_Use; - - procedure Finish_Subprg_Instance_Use (Vars : Subprg_Instance_Type) is - begin - if Has_Subprg_Instance (Vars) then - Clear_Scope (Vars.Scope.all); - end if; - end Finish_Subprg_Instance_Use; - - procedure Start_Prev_Subprg_Instance_Use_Via_Field - (Prev : Subprg_Instance_Stack; Field : O_Fnode) is - begin - if Field /= O_Fnode_Null then - Set_Scope_Via_Field_Ptr (Prev.Scope.all, Field, - Current_Subprg_Instance.Scope); - end if; - end Start_Prev_Subprg_Instance_Use_Via_Field; - - procedure Finish_Prev_Subprg_Instance_Use_Via_Field - (Prev : Subprg_Instance_Stack; Field : O_Fnode) is - begin - if Field /= O_Fnode_Null then - Clear_Scope (Prev.Scope.all); - end if; - end Finish_Prev_Subprg_Instance_Use_Via_Field; - - procedure Create_Subprg_Instance (Interfaces : in out O_Inter_List; - Subprg : Iir) - is - begin - Add_Subprg_Instance_Interfaces - (Interfaces, Get_Info (Subprg).Subprg_Instance); - end Create_Subprg_Instance; - - procedure Start_Subprg_Instance_Use (Subprg : Iir) is - begin - Start_Subprg_Instance_Use (Get_Info (Subprg).Subprg_Instance); - end Start_Subprg_Instance_Use; - - procedure Finish_Subprg_Instance_Use (Subprg : Iir) is - begin - Finish_Subprg_Instance_Use (Get_Info (Subprg).Subprg_Instance); - end Finish_Subprg_Instance_Use; - - function Instantiate_Subprg_Instance (Inst : Subprg_Instance_Type) - return Subprg_Instance_Type is - begin - return Subprg_Instance_Type' - (Inter => Inst.Inter, - Inter_Type => Inst.Inter_Type, - Scope => Instantiated_Var_Scope (Inst.Scope)); - end Instantiate_Subprg_Instance; end Chap2; package body Chap3 is @@ -6265,7 +3656,7 @@ package body Translation is -- FIXME: return the same type as its first parameter ??? Start_Function_Decl (Interface_List, Ident, Global_Storage, Ghdl_Index_Type); - Chap2.Add_Subprg_Instance_Interfaces + Subprgs.Add_Subprg_Instance_Interfaces (Interface_List, Info.C (Kind).Builder_Instance); case Info.Type_Mode is when Type_Mode_Fat_Array => @@ -6298,7 +3689,7 @@ package body Translation is begin -- Build the field Start_Association (Assoc, Binfo.C (Kind).Builder_Func); - Chap2.Add_Subprg_Instance_Assoc + Subprgs.Add_Subprg_Instance_Assoc (Assoc, Binfo.C (Kind).Builder_Instance); case Tinfo.Type_Mode is @@ -7200,7 +4591,7 @@ package body Translation is Label : O_Snode; begin Start_Subprogram_Body (Info.C (Kind).Builder_Func); - Chap2.Start_Subprg_Instance_Use (Info.C (Kind).Builder_Instance); + Subprgs.Start_Subprg_Instance_Use (Info.C (Kind).Builder_Instance); -- Compute length of the array. New_Var_Decl (Var_Length, Wki_Length, O_Storage_Local, @@ -7257,7 +4648,7 @@ package body Translation is New_Return_Stmt (New_Obj_Value (Var_Off)); - Chap2.Finish_Subprg_Instance_Use (Info.C (Kind).Builder_Instance); + Subprgs.Finish_Subprg_Instance_Use (Info.C (Kind).Builder_Instance); Finish_Subprogram_Body; end Create_Array_Type_Builder; @@ -7406,7 +4797,7 @@ package body Translation is El_Tinfo : Type_Info_Acc; begin Start_Subprogram_Body (Info.C (Kind).Builder_Func); - Chap2.Start_Subprg_Instance_Use (Info.C (Kind).Builder_Instance); + Subprgs.Start_Subprg_Instance_Use (Info.C (Kind).Builder_Instance); New_Var_Decl (Off_Var, Get_Identifier ("off"), O_Storage_Local, Ghdl_Index_Type); @@ -7476,7 +4867,7 @@ package body Translation is end if; end loop; New_Return_Stmt (New_Value (Get_Var (Info.C (Kind).Size_Var))); - Chap2.Finish_Subprg_Instance_Use (Info.C (Kind).Builder_Instance); + Subprgs.Finish_Subprg_Instance_Use (Info.C (Kind).Builder_Instance); Finish_Subprogram_Body; end Create_Record_Type_Builder; @@ -7629,7 +5020,7 @@ package body Translation is El : Iir; Inter_List : O_Inter_List; Mark : Id_Mark_Type; - Prev_Subprg_Instance : Chap2.Subprg_Instance_Stack; + Prev_Subprg_Instance : Subprgs.Subprg_Instance_Stack; begin Push_Identifier_Prefix (Mark, Get_Identifier (Get_Type_Declarator (Def))); @@ -7638,20 +5029,20 @@ package body Translation is Start_Function_Decl (Inter_List, Create_Identifier ("INIT"), Global_Storage, Info.Ortho_Ptr_Type (Mode_Value)); - Chap2.Add_Subprg_Instance_Interfaces + Subprgs.Add_Subprg_Instance_Interfaces (Inter_List, Info.T.Prot_Init_Instance); Finish_Subprogram_Decl (Inter_List, Info.T.Prot_Init_Subprg); -- Use the object as instance. - Chap2.Push_Subprg_Instance (Info.T.Prot_Scope'Unrestricted_Access, - Info.Ortho_Ptr_Type (Mode_Value), - Wki_Obj, - Prev_Subprg_Instance); + Subprgs.Push_Subprg_Instance (Info.T.Prot_Scope'Unrestricted_Access, + Info.Ortho_Ptr_Type (Mode_Value), + Wki_Obj, + Prev_Subprg_Instance); -- Final. Start_Procedure_Decl (Inter_List, Create_Identifier ("FINI"), Global_Storage); - Chap2.Add_Subprg_Instance_Interfaces + Subprgs.Add_Subprg_Instance_Interfaces (Inter_List, Info.T.Prot_Final_Instance); Finish_Subprogram_Decl (Inter_List, Info.T.Prot_Final_Subprg); @@ -7671,7 +5062,7 @@ package body Translation is El := Get_Chain (El); end loop; - Chap2.Pop_Subprg_Instance (Wki_Obj, Prev_Subprg_Instance); + Subprgs.Pop_Subprg_Instance (Wki_Obj, Prev_Subprg_Instance); Pop_Identifier_Prefix (Mark); end Translate_Protected_Type_Subprograms; @@ -7688,7 +5079,7 @@ package body Translation is -- Create the object type Push_Instance_Factory (Info.T.Prot_Scope'Unrestricted_Access); -- First, the previous instance. - Chap2.Add_Subprg_Instance_Field (Info.T.Prot_Subprg_Instance_Field); + Subprgs.Add_Subprg_Instance_Field (Info.T.Prot_Subprg_Instance_Field); -- Then the object lock Info.T.Prot_Lock_Field := Add_Instance_Factory_Field (Get_Identifier ("LOCK"), Ghdl_Ptr_Type); @@ -7724,23 +5115,23 @@ package body Translation is Decl : constant Iir := Get_Protected_Type_Declaration (Bod); Info : constant Type_Info_Acc := Get_Info (Decl); Final : Boolean; - Prev_Subprg_Instance : Chap2.Subprg_Instance_Stack; + Prev_Subprg_Instance : Subprgs.Subprg_Instance_Stack; begin Push_Identifier_Prefix (Mark, Get_Identifier (Bod)); -- Subprograms of BOD. - Chap2.Push_Subprg_Instance (Info.T.Prot_Scope'Unrestricted_Access, - Info.Ortho_Ptr_Type (Mode_Value), - Wki_Obj, - Prev_Subprg_Instance); - Chap2.Start_Prev_Subprg_Instance_Use_Via_Field + Subprgs.Push_Subprg_Instance (Info.T.Prot_Scope'Unrestricted_Access, + Info.Ortho_Ptr_Type (Mode_Value), + Wki_Obj, + Prev_Subprg_Instance); + Subprgs.Start_Prev_Subprg_Instance_Use_Via_Field (Prev_Subprg_Instance, Info.T.Prot_Subprg_Instance_Field); Chap4.Translate_Declaration_Chain_Subprograms (Bod); - Chap2.Finish_Prev_Subprg_Instance_Use_Via_Field + Subprgs.Finish_Prev_Subprg_Instance_Use_Via_Field (Prev_Subprg_Instance, Info.T.Prot_Subprg_Instance_Field); - Chap2.Pop_Subprg_Instance (Wki_Obj, Prev_Subprg_Instance); + Subprgs.Pop_Subprg_Instance (Wki_Obj, Prev_Subprg_Instance); Pop_Identifier_Prefix (Mark); @@ -7753,7 +5144,7 @@ package body Translation is Var_Obj : O_Dnode; begin Start_Subprogram_Body (Info.T.Prot_Init_Subprg); - Chap2.Start_Subprg_Instance_Use (Info.T.Prot_Init_Instance); + Subprgs.Start_Subprg_Instance_Use (Info.T.Prot_Init_Instance); New_Var_Decl (Var_Obj, Wki_Obj, O_Storage_Local, Info.Ortho_Ptr_Type (Mode_Value)); @@ -7765,7 +5156,7 @@ package body Translation is Ghdl_Index_Type)), Info.Ortho_Ptr_Type (Mode_Value))); - Chap2.Set_Subprg_Instance_Field + Subprgs.Set_Subprg_Instance_Field (Var_Obj, Info.T.Prot_Subprg_Instance_Field, Info.T.Prot_Init_Instance); @@ -7782,7 +5173,7 @@ package body Translation is Clear_Scope (Info.T.Prot_Scope); New_Return_Stmt (New_Obj_Value (Var_Obj)); - Chap2.Finish_Subprg_Instance_Use (Info.T.Prot_Init_Instance); + Subprgs.Finish_Subprg_Instance_Use (Info.T.Prot_Init_Instance); Finish_Subprogram_Body; end; @@ -7790,7 +5181,7 @@ package body Translation is -- Fini subprogram begin Start_Subprogram_Body (Info.T.Prot_Final_Subprg); - Chap2.Start_Subprg_Instance_Use (Info.T.Prot_Final_Instance); + Subprgs.Start_Subprg_Instance_Use (Info.T.Prot_Final_Instance); -- Deallocate fields. if Final or True then @@ -7800,7 +5191,7 @@ package body Translation is -- Destroy lock. Call_Ghdl_Protected_Procedure (Decl, Ghdl_Protected_Fini); - Chap2.Finish_Subprg_Instance_Use (Info.T.Prot_Final_Instance); + Subprgs.Finish_Subprg_Instance_Use (Info.T.Prot_Final_Instance); Finish_Subprogram_Body; end; end Translate_Protected_Type_Body_Subprograms; @@ -8542,15 +5933,6 @@ package body Translation is Pop_Identifier_Prefix (Mark); end Translate_Anonymous_Type_Definition; - procedure Destroy_Type_Info (Atype : Iir) - is - Type_Info : Type_Info_Acc; - begin - Type_Info := Get_Info (Atype); - Free_Type_Info (Type_Info); - Clear_Info (Atype); - end Destroy_Type_Info; - procedure Translate_Object_Subtype (Decl : Iir; With_Vars : Boolean := True) is @@ -9829,7 +7211,7 @@ package body Translation is -- Call the initializer. Start_Association (Assoc, Info.T.Prot_Init_Subprg); - Chap2.Add_Subprg_Instance_Assoc (Assoc, Info.T.Prot_Init_Instance); + Subprgs.Add_Subprg_Instance_Assoc (Assoc, Info.T.Prot_Init_Instance); -- Use of M2Lp is a little bit fragile (not sure we get the -- variable, but should work: we didn't stabilize it). New_Assign_Stmt (M2Lp (Obj), New_Function_Call (Assoc)); @@ -10224,9 +7606,9 @@ package body Translation is New_Association (Assoc, New_Lit (New_Subprogram_Address (Resolv_Info.Resolv_Func, Ghdl_Ptr_Type))); - if Chap2.Has_Subprg_Instance (Resolv_Info.Var_Instance) then + if Subprgs.Has_Subprg_Instance (Resolv_Info.Var_Instance) then Val := New_Convert_Ov - (Chap2.Get_Subprg_Instance (Resolv_Info.Var_Instance), + (Subprgs.Get_Subprg_Instance (Resolv_Info.Var_Instance), Ghdl_Ptr_Type); else Val := New_Lit (New_Null_Access (Ghdl_Ptr_Type)); @@ -11154,14 +8536,14 @@ package body Translation is Start_Procedure_Decl (Interface_List, Id, Global_Storage); -- The instance. - if Chap2.Has_Current_Subprg_Instance then - Chap2.Add_Subprg_Instance_Interfaces (Interface_List, - Rinfo.Var_Instance); + if Subprgs.Has_Current_Subprg_Instance then + Subprgs.Add_Subprg_Instance_Interfaces (Interface_List, + Rinfo.Var_Instance); else -- Create a dummy instance parameter New_Interface_Decl (Interface_List, Unused_Instance, Wki_Instance, Ghdl_Ptr_Type); - Rinfo.Var_Instance := Chap2.Null_Subprg_Instance; + Rinfo.Var_Instance := Subprgs.Null_Subprg_Instance; end if; -- The signal. @@ -11356,8 +8738,8 @@ package body Translation is Index_Tinfo := Get_Info (Index_Type); Start_Subprogram_Body (Rinfo.Resolv_Func); - if Chap2.Has_Subprg_Instance (Rinfo.Var_Instance) then - Chap2.Start_Subprg_Instance_Use (Rinfo.Var_Instance); + if Subprgs.Has_Subprg_Instance (Rinfo.Var_Instance) then + Subprgs.Start_Subprg_Instance_Use (Rinfo.Var_Instance); end if; Push_Local_Factory; @@ -11497,7 +8879,7 @@ package body Translation is if Finfo.Res_Interface /= O_Dnode_Null then New_Association (Assoc, M2E (Res)); end if; - Chap2.Add_Subprg_Instance_Assoc (Assoc, Finfo.Subprg_Instance); + Subprgs.Add_Subprg_Instance_Assoc (Assoc, Finfo.Subprg_Instance); New_Association (Assoc, New_Address (New_Obj (Var_Array), Base_Info.Ortho_Ptr_Type (Mode_Value))); @@ -11518,8 +8900,8 @@ package body Translation is Close_Temp; Pop_Local_Factory; - if Chap2.Has_Subprg_Instance (Rinfo.Var_Instance) then - Chap2.Finish_Subprg_Instance_Use (Rinfo.Var_Instance); + if Subprgs.Has_Subprg_Instance (Rinfo.Var_Instance) then + Subprgs.Finish_Subprg_Instance_Use (Rinfo.Var_Instance); end if; Finish_Subprogram_Body; end Translate_Resolution_Function_Body; @@ -11961,7 +9343,7 @@ package body Translation is New_Association (Constr, M2E (Res)); end if; - Chap2.Add_Subprg_Instance_Assoc + Subprgs.Add_Subprg_Instance_Assoc (Constr, Subprg_Info.Subprg_Instance); New_Association (Constr, R); @@ -14809,7 +12191,7 @@ package body Translation is if Obj /= Null_Iir then New_Association (Constr, M2E (Chap6.Translate_Name (Obj))); else - Chap2.Add_Subprg_Instance_Assoc (Constr, Info.Subprg_Instance); + Subprgs.Add_Subprg_Instance_Assoc (Constr, Info.Subprg_Instance); end if; Assoc := Assoc_Chain; @@ -15155,7 +12537,7 @@ package body Translation is Constr : O_Assoc_List; begin Start_Association (Constr, Info.Ortho_Func); - Chap2.Add_Subprg_Instance_Assoc (Constr, Info.Subprg_Instance); + Subprgs.Add_Subprg_Instance_Assoc (Constr, Info.Subprg_Instance); New_Association (Constr, Left); if Right /= O_Enode_Null then New_Association (Constr, Right); @@ -15177,7 +12559,7 @@ package body Translation is Res := Create_Temp (Info.Ortho_Type (Mode_Value)); Func_Info := Get_Info (Func); Start_Association (Constr, Func_Info.Ortho_Func); - Chap2.Add_Subprg_Instance_Assoc (Constr, Func_Info.Subprg_Instance); + Subprgs.Add_Subprg_Instance_Assoc (Constr, Func_Info.Subprg_Instance); New_Association (Constr, New_Address (New_Obj (Res), Info.Ortho_Ptr_Type (Mode_Value))); @@ -18326,7 +15708,7 @@ package body Translation is -- Create function. Start_Function_Decl (Interface_List, Create_Identifier (Id, "_EQ"), Global_Storage, Std_Boolean_Type_Node); - Chap2.Create_Subprg_Instance (Interface_List, Subprg); + Subprgs.Create_Subprg_Instance (Interface_List, Subprg); New_Interface_Decl (Interface_List, Var_L, Wki_Left, Arr_Ptr_Type); New_Interface_Decl (Interface_List, Var_R, Wki_Right, Arr_Ptr_Type); Finish_Subprogram_Decl (Interface_List, F_Info.Ortho_Func); @@ -18342,7 +15724,7 @@ package body Translation is Nbr_Indexes := Get_Nbr_Elements (Indexes); Start_Subprogram_Body (F_Info.Ortho_Func); - Chap2.Start_Subprg_Instance_Use (Subprg); + Subprgs.Start_Subprg_Instance_Use (Subprg); -- for each dimension: if length mismatch: return false for I in 1 .. Nbr_Indexes loop Start_If_Stmt @@ -18388,7 +15770,7 @@ package body Translation is Close_Temp; Inc_Var (Var_I); Finish_Loop_Stmt (Label); - Chap2.Finish_Subprg_Instance_Use (Subprg); + Subprgs.Finish_Subprg_Instance_Use (Subprg); Finish_Subprogram_Body; end Translate_Predefined_Array_Equality; @@ -18419,7 +15801,7 @@ package body Translation is -- Create function. Start_Function_Decl (Interface_List, Create_Identifier (Id, "_EQ"), Global_Storage, Std_Boolean_Type_Node); - Chap2.Create_Subprg_Instance (Interface_List, Subprg); + Subprgs.Create_Subprg_Instance (Interface_List, Subprg); New_Interface_Decl (Interface_List, Var_L, Wki_Left, Rec_Ptr_Type); New_Interface_Decl (Interface_List, Var_R, Wki_Right, Rec_Ptr_Type); Finish_Subprogram_Decl (Interface_List, F_Info.Ortho_Func); @@ -18429,7 +15811,7 @@ package body Translation is end if; Start_Subprogram_Body (F_Info.Ortho_Func); - Chap2.Start_Subprg_Instance_Use (Subprg); + Subprgs.Start_Subprg_Instance_Use (Subprg); L := Dp2M (Var_L, Info, Mode_Value); R := Dp2M (Var_R, Info, Mode_Value); @@ -18452,7 +15834,7 @@ package body Translation is Close_Temp; end loop; New_Return_Stmt (New_Lit (Std_Boolean_True_Node)); - Chap2.Finish_Subprg_Instance_Use (Subprg); + Subprgs.Finish_Subprg_Instance_Use (Subprg); Finish_Subprogram_Body; end Translate_Predefined_Record_Equality; @@ -18493,7 +15875,7 @@ package body Translation is -- Note: contrary to user function which returns composite value -- via a result record, a concatenation returns its value without -- the use of the record. - Chap2.Create_Subprg_Instance (Interface_List, Subprg); + Subprgs.Create_Subprg_Instance (Interface_List, Subprg); New_Interface_Decl (Interface_List, Var_Res, Wki_Res, Arr_Ptr_Type); New_Interface_Decl (Interface_List, Var_L, Wki_Left, Arr_Ptr_Type); New_Interface_Decl (Interface_List, Var_R, Wki_Right, Arr_Ptr_Type); @@ -18508,7 +15890,7 @@ package body Translation is Index_Otype := Iinfo.Ortho_Type (Mode_Value); Start_Subprogram_Body (F_Info.Ortho_Func); - Chap2.Start_Subprg_Instance_Use (Subprg); + Subprgs.Start_Subprg_Instance_Use (Subprg); New_Var_Decl (Var_Length, Wki_Length, O_Storage_Local, Ghdl_Index_Type); New_Var_Decl (Var_L_Len, Wki_L_Len, O_Storage_Local, Ghdl_Index_Type); @@ -18714,7 +16096,7 @@ package body Translation is (Var_Arr, New_Obj_Value (Var_R), Arr_Type); Close_Temp; end; - Chap2.Finish_Subprg_Instance_Use (Subprg); + Subprgs.Finish_Subprg_Instance_Use (Subprg); Finish_Subprogram_Body; end Translate_Predefined_Array_Array_Concat; @@ -19380,7 +16762,7 @@ package body Translation is else Start_Procedure_Decl (Inter_List, Name, Global_Storage); end if; - Chap2.Create_Subprg_Instance (Inter_List, Subprg); + Subprgs.Create_Subprg_Instance (Inter_List, Subprg); New_Interface_Decl (Inter_List, Var_File, Get_Identifier ("FILE"), @@ -19395,7 +16777,7 @@ package body Translation is end if; Start_Subprogram_Body (F_Info.Ortho_Func); - Chap2.Start_Subprg_Instance_Use (Subprg); + Subprgs.Start_Subprg_Instance_Use (Subprg); Push_Local_Factory; Var := Dp2M (Var_Val, Tinfo, Mode_Value); @@ -19444,7 +16826,7 @@ package body Translation is when others => raise Internal_Error; end case; - Chap2.Finish_Subprg_Instance_Use (Subprg); + Subprgs.Finish_Subprg_Instance_Use (Subprg); Pop_Local_Factory; Finish_Subprogram_Body; end Translate_File_Subprogram; @@ -20480,7 +17862,7 @@ package body Translation is Val); Func_Info := Get_Info (Func); Start_Association (Assoc, Func_Info.Ortho_Func); - Chap2.Add_Subprg_Instance_Assoc (Assoc, Func_Info.Subprg_Instance); + Subprgs.Add_Subprg_Instance_Assoc (Assoc, Func_Info.Subprg_Instance); New_Association (Assoc, New_Obj_Value (Expr)); New_Association (Assoc, New_Address (New_Obj (Val_Node), @@ -21072,7 +18454,7 @@ package body Translation is | Type_Mode_Fat_Array => Subprg_Info := Get_Info (Imp); Start_Association (Assocs, Subprg_Info.Ortho_Func); - Chap2.Add_Subprg_Instance_Assoc + Subprgs.Add_Subprg_Instance_Assoc (Assocs, Subprg_Info.Subprg_Instance); New_Association (Assocs, Chap7.Translate_Expression (Get_Actual (F_Assoc))); @@ -21126,7 +18508,7 @@ package body Translation is | Type_Mode_Record => Subprg_Info := Get_Info (Imp); Start_Association (Assocs, Subprg_Info.Ortho_Func); - Chap2.Add_Subprg_Instance_Assoc + Subprgs.Add_Subprg_Instance_Assoc (Assocs, Subprg_Info.Subprg_Instance); New_Association (Assocs, Chap7.Translate_Expression (Get_Actual (F_Assoc))); @@ -21142,7 +18524,7 @@ package body Translation is Length_Assoc := Get_Chain (Value_Assoc); Subprg_Info := Get_Info (Imp); Start_Association (Assocs, Subprg_Info.Ortho_Func); - Chap2.Add_Subprg_Instance_Assoc + Subprgs.Add_Subprg_Instance_Assoc (Assocs, Subprg_Info.Subprg_Instance); New_Association (Assocs, @@ -21375,7 +18757,7 @@ package body Translation is New_Address (New_Obj (Res), Conv_Info.Res_Record_Ptr)); end if; - Chap2.Add_Subprg_Instance_Assoc + Subprgs.Add_Subprg_Instance_Assoc (Constr, Conv_Info.Subprg_Instance); New_Association (Constr, M2E (Src)); @@ -21606,7 +18988,7 @@ package body Translation is if Obj /= Null_Iir then New_Association (Constr, M2E (Chap6.Translate_Name (Obj))); else - Chap2.Add_Subprg_Instance_Assoc (Constr, Info.Subprg_Instance); + Subprgs.Add_Subprg_Instance_Assoc (Constr, Info.Subprg_Instance); end if; -- Parameters. @@ -23543,18 +20925,18 @@ package body Translation is when Iir_Kind_Generate_Statement => declare Info : constant Block_Info_Acc := Get_Info (Stmt); - Prev_Subprg_Instance : Chap2.Subprg_Instance_Stack; + Prev_Subprg_Instance : Subprgs.Subprg_Instance_Stack; begin - Chap2.Push_Subprg_Instance (Info.Block_Scope'Access, - Info.Block_Decls_Ptr_Type, - Wki_Instance, - Prev_Subprg_Instance); + Subprgs.Push_Subprg_Instance (Info.Block_Scope'Access, + Info.Block_Decls_Ptr_Type, + Wki_Instance, + Prev_Subprg_Instance); Set_Scope_Via_Field_Ptr (Base_Info.Block_Scope, Info.Block_Origin_Field, Info.Block_Scope'Access); Translate_Block_Subprograms (Stmt, Stmt); Clear_Scope (Base_Info.Block_Scope); - Chap2.Pop_Subprg_Instance + Subprgs.Pop_Subprg_Instance (Wki_Instance, Prev_Subprg_Instance); end; when others => @@ -24601,851 +21983,6 @@ package body Translation is end Elab_Block_Declarations; end Chap9; - package body Chap10 is - -- Identifiers. - -- The following functions are helpers to create ortho identifiers. - Identifier_Buffer : String (1 .. 512); - Identifier_Len : Natural := 0; - Identifier_Start : Natural := 1; - Identifier_Local : Local_Identifier_Type := 0; - - - Inst_Build : Inst_Build_Acc := null; - procedure Unchecked_Deallocation is new Ada.Unchecked_Deallocation - (Object => Inst_Build_Type, Name => Inst_Build_Acc); - - procedure Set_Global_Storage (Storage : O_Storage) is - begin - Global_Storage := Storage; - end Set_Global_Storage; - - procedure Pop_Build_Instance - is - Old : Inst_Build_Acc; - begin - Old := Inst_Build; - Identifier_Start := Old.Prev_Id_Start; - Inst_Build := Old.Prev; - Unchecked_Deallocation (Old); - end Pop_Build_Instance; - - function Get_Scope_Type (Scope : Var_Scope_Type) return O_Tnode is - begin - pragma Assert (Scope.Scope_Type /= O_Tnode_Null); - return Scope.Scope_Type; - end Get_Scope_Type; - - function Get_Scope_Size (Scope : Var_Scope_Type) return O_Cnode is - begin - pragma Assert (Scope.Scope_Type /= O_Tnode_Null); - return New_Sizeof (Scope.Scope_Type, Ghdl_Index_Type); - end Get_Scope_Size; - - function Has_Scope_Type (Scope : Var_Scope_Type) return Boolean is - begin - return Scope.Scope_Type /= O_Tnode_Null; - end Has_Scope_Type; - - procedure Predeclare_Scope_Type (Scope : Var_Scope_Acc; Name : O_Ident) - is - begin - pragma Assert (Scope.Scope_Type = O_Tnode_Null); - New_Uncomplete_Record_Type (Scope.Scope_Type); - New_Type_Decl (Name, Scope.Scope_Type); - end Predeclare_Scope_Type; - - procedure Declare_Scope_Acc - (Scope : Var_Scope_Type; Name : O_Ident; Ptr_Type : out O_Tnode) is - begin - Ptr_Type := New_Access_Type (Get_Scope_Type (Scope)); - New_Type_Decl (Name, Ptr_Type); - end Declare_Scope_Acc; - - procedure Push_Instance_Factory (Scope : Var_Scope_Acc) - is - Inst : Inst_Build_Acc; - begin - if Inst_Build /= null and then Inst_Build.Kind /= Instance then - raise Internal_Error; - end if; - Inst := new Inst_Build_Type (Instance); - Inst.Prev := Inst_Build; - Inst.Prev_Id_Start := Identifier_Start; - Inst.Scope := Scope; - - Identifier_Start := Identifier_Len + 1; - - if Scope.Scope_Type /= O_Tnode_Null then - Start_Uncomplete_Record_Type (Scope.Scope_Type, Inst.Elements); - else - Start_Record_Type (Inst.Elements); - end if; - Inst_Build := Inst; - end Push_Instance_Factory; - - function Add_Instance_Factory_Field (Name : O_Ident; Ftype : O_Tnode) - return O_Fnode - is - Res : O_Fnode; - begin - New_Record_Field (Inst_Build.Elements, Res, Name, Ftype); - return Res; - end Add_Instance_Factory_Field; - - procedure Add_Scope_Field - (Name : O_Ident; Child : in out Var_Scope_Type) - is - Field : O_Fnode; - begin - Field := Add_Instance_Factory_Field (Name, Get_Scope_Type (Child)); - Set_Scope_Via_Field (Child, Field, Inst_Build.Scope); - end Add_Scope_Field; - - function Get_Scope_Offset (Child : Var_Scope_Type; Otype : O_Tnode) - return O_Cnode is - begin - return New_Offsetof (Get_Scope_Type (Child.Up_Link.all), - Child.Field, Otype); - end Get_Scope_Offset; - - procedure Pop_Instance_Factory (Scope : in Var_Scope_Acc) - is - Res : O_Tnode; - begin - if Inst_Build.Kind /= Instance then - -- Not matching. - raise Internal_Error; - end if; - Finish_Record_Type (Inst_Build.Elements, Res); - Pop_Build_Instance; - Scope.Scope_Type := Res; - end Pop_Instance_Factory; - - procedure Push_Local_Factory - is - Inst : Inst_Build_Acc; - begin - if Inst_Build /= null - and then (Inst_Build.Kind /= Global and Inst_Build.Kind /= Local) - then - -- Cannot create a local factory on an instance. - raise Internal_Error; - end if; - Inst := new Inst_Build_Type (Kind => Local); - Inst.Prev := Inst_Build; - Inst.Prev_Global_Storage := Global_Storage; - - Inst.Prev_Id_Start := Identifier_Start; - Identifier_Start := Identifier_Len + 1; - - Inst_Build := Inst; - case Global_Storage is - when O_Storage_Public => - Global_Storage := O_Storage_Private; - when O_Storage_Private - | O_Storage_External => - null; - when O_Storage_Local => - raise Internal_Error; - end case; - end Push_Local_Factory; - - -- Return TRUE is the current scope is local. - function Is_Local_Scope return Boolean is - begin - if Inst_Build = null then - return False; - end if; - case Inst_Build.Kind is - when Local - | Instance => - return True; - when Global => - return False; - end case; - end Is_Local_Scope; - - procedure Pop_Local_Factory is - begin - if Inst_Build.Kind /= Local then - -- Not matching. - raise Internal_Error; - end if; - Global_Storage := Inst_Build.Prev_Global_Storage; - Pop_Build_Instance; - end Pop_Local_Factory; - - procedure Set_Scope_Via_Field - (Scope : in out Var_Scope_Type; - Scope_Field : O_Fnode; Scope_Parent : Var_Scope_Acc) is - begin - pragma Assert (Scope.Kind = Var_Scope_None); - Scope := (Scope_Type => Scope.Scope_Type, - Kind => Var_Scope_Field, - Field => Scope_Field, Up_Link => Scope_Parent); - end Set_Scope_Via_Field; - - procedure Set_Scope_Via_Field_Ptr - (Scope : in out Var_Scope_Type; - Scope_Field : O_Fnode; Scope_Parent : Var_Scope_Acc) is - begin - pragma Assert (Scope.Kind = Var_Scope_None); - Scope := (Scope_Type => Scope.Scope_Type, - Kind => Var_Scope_Field_Ptr, - Field => Scope_Field, Up_Link => Scope_Parent); - end Set_Scope_Via_Field_Ptr; - - procedure Set_Scope_Via_Var_Ptr - (Scope : in out Var_Scope_Type; Var : Var_Type) is - begin - pragma Assert (Scope.Kind = Var_Scope_None); - pragma Assert (Var.Kind = Var_Scope); - Scope := (Scope_Type => Scope.Scope_Type, - Kind => Var_Scope_Field_Ptr, - Field => Var.I_Field, Up_Link => Var.I_Scope); - end Set_Scope_Via_Var_Ptr; - - procedure Set_Scope_Via_Param_Ptr - (Scope : in out Var_Scope_Type; Scope_Param : O_Dnode) is - begin - pragma Assert (Scope.Kind = Var_Scope_None); - Scope := (Scope_Type => Scope.Scope_Type, - Kind => Var_Scope_Ptr, D => Scope_Param); - end Set_Scope_Via_Param_Ptr; - - procedure Set_Scope_Via_Decl - (Scope : in out Var_Scope_Type; Decl : O_Dnode) is - begin - pragma Assert (Scope.Kind = Var_Scope_None); - Scope := (Scope_Type => Scope.Scope_Type, - Kind => Var_Scope_Decl, D => Decl); - end Set_Scope_Via_Decl; - - procedure Clear_Scope (Scope : in out Var_Scope_Type) is - begin - pragma Assert (Scope.Kind /= Var_Scope_None); - Scope := (Scope_Type => Scope.Scope_Type, Kind => Var_Scope_None); - end Clear_Scope; - - function Create_Global_Var - (Name : O_Ident; Vtype : O_Tnode; Storage : O_Storage) - return Var_Type - is - Var : O_Dnode; - begin - New_Var_Decl (Var, Name, Storage, Vtype); - return Var_Type'(Kind => Var_Global, E => Var); - end Create_Global_Var; - - function Create_Global_Const - (Name : O_Ident; - Vtype : O_Tnode; - Storage : O_Storage; - Initial_Value : O_Cnode) - return Var_Type - is - Res : O_Dnode; - begin - New_Const_Decl (Res, Name, Storage, Vtype); - if Storage /= O_Storage_External - and then Initial_Value /= O_Cnode_Null - then - Start_Const_Value (Res); - Finish_Const_Value (Res, Initial_Value); - end if; - return Var_Type'(Kind => Var_Global, E => Res); - end Create_Global_Const; - - procedure Define_Global_Const (Const : in out Var_Type; Val : O_Cnode) is - begin - Start_Const_Value (Const.E); - Finish_Const_Value (Const.E, Val); - end Define_Global_Const; - - function Create_Var - (Name : Var_Ident_Type; - Vtype : O_Tnode; - Storage : O_Storage := Global_Storage) - return Var_Type - is - Res : O_Dnode; - Field : O_Fnode; - K : Inst_Build_Kind_Type; - begin - if Inst_Build = null then - K := Global; - else - K := Inst_Build.Kind; - end if; - case K is - when Global => - -- The global scope is in use... - return Create_Global_Var (Name.Id, Vtype, Storage); - when Local => - -- It is always possible to create a variable in a local scope. - -- Create a var. - New_Var_Decl (Res, Name.Id, O_Storage_Local, Vtype); - return Var_Type'(Kind => Var_Local, E => Res); - when Instance => - -- Create a field. - New_Record_Field (Inst_Build.Elements, Field, Name.Id, Vtype); - return Var_Type'(Kind => Var_Scope, I_Field => Field, - I_Scope => Inst_Build.Scope); - end case; - end Create_Var; - - -- Get a reference to scope STYPE. If IS_PTR is set, RES is an access - -- to the scope, otherwise RES directly designates the scope. - procedure Find_Scope (Scope : Var_Scope_Type; - Res : out O_Lnode; - Is_Ptr : out Boolean) is - begin - case Scope.Kind is - when Var_Scope_None => - raise Internal_Error; - when Var_Scope_Ptr - | Var_Scope_Decl => - Res := New_Obj (Scope.D); - Is_Ptr := Scope.Kind = Var_Scope_Ptr; - when Var_Scope_Field - | Var_Scope_Field_Ptr => - declare - Parent : O_Lnode; - Parent_Ptr : Boolean; - begin - Find_Scope (Scope.Up_Link.all, Parent, Parent_Ptr); - if Parent_Ptr then - Parent := New_Acc_Value (Parent); - end if; - Res := New_Selected_Element (Parent, Scope.Field); - Is_Ptr := Scope.Kind = Var_Scope_Field_Ptr; - end; - end case; - end Find_Scope; - - procedure Check_Not_Building is - begin - -- Variables cannot be referenced if there is an instance being - -- built. - if Inst_Build /= null and then Inst_Build.Kind = Instance then - raise Internal_Error; - end if; - end Check_Not_Building; - - function Get_Instance_Access (Block : Iir) return O_Enode - is - Info : constant Block_Info_Acc := Get_Info (Block); - Res : O_Lnode; - Is_Ptr : Boolean; - begin - Check_Not_Building; - Find_Scope (Info.Block_Scope, Res, Is_Ptr); - if Is_Ptr then - return New_Value (Res); - else - return New_Address (Res, Info.Block_Decls_Ptr_Type); - end if; - end Get_Instance_Access; - - function Get_Instance_Ref (Scope : Var_Scope_Type) return O_Lnode - is - Res : O_Lnode; - Is_Ptr : Boolean; - begin - Check_Not_Building; - Find_Scope (Scope, Res, Is_Ptr); - if Is_Ptr then - return New_Acc_Value (Res); - else - return Res; - end if; - end Get_Instance_Ref; - - function Get_Var (Var : Var_Type) return O_Lnode - is - begin - case Var.Kind is - when Var_None => - raise Internal_Error; - when Var_Local - | Var_Global => - return New_Obj (Var.E); - when Var_Scope => - return New_Selected_Element - (Get_Instance_Ref (Var.I_Scope.all), Var.I_Field); - end case; - end Get_Var; - - function Get_Alloc_Kind_For_Var (Var : Var_Type) - return Allocation_Kind is - begin - case Var.Kind is - when Var_Local => - return Alloc_Stack; - when Var_Global - | Var_Scope => - return Alloc_System; - when Var_None => - raise Internal_Error; - end case; - end Get_Alloc_Kind_For_Var; - - function Is_Var_Stable (Var : Var_Type) return Boolean is - begin - case Var.Kind is - when Var_Local - | Var_Global => - return True; - when Var_Scope => - return False; - when Var_None => - raise Internal_Error; - end case; - end Is_Var_Stable; - - function Is_Var_Field (Var : Var_Type) return Boolean is - begin - case Var.Kind is - when Var_Local - | Var_Global => - return False; - when Var_Scope => - return True; - when Var_None => - raise Internal_Error; - end case; - end Is_Var_Field; - - function Get_Var_Offset (Var : Var_Type; Otype : O_Tnode) return O_Cnode - is - begin - return New_Offsetof (Get_Scope_Type (Var.I_Scope.all), - Var.I_Field, Otype); - end Get_Var_Offset; - - function Get_Var_Label (Var : Var_Type) return O_Dnode is - begin - case Var.Kind is - when Var_Local - | Var_Global => - return Var.E; - when Var_Scope - | Var_None => - raise Internal_Error; - end case; - end Get_Var_Label; - - procedure Save_Local_Identifier (Id : out Local_Identifier_Type) is - begin - Id := Identifier_Local; - end Save_Local_Identifier; - - procedure Restore_Local_Identifier (Id : Local_Identifier_Type) is - begin - if Identifier_Local > Id then - -- If the value is restored with a smaller value, some identifiers - -- will be reused. This is certainly an internal error. - raise Internal_Error; - end if; - Identifier_Local := Id; - end Restore_Local_Identifier; - - -- Reset the identifier. - procedure Reset_Identifier_Prefix is - begin - if Identifier_Len /= 0 or else Identifier_Local /= 0 then - raise Internal_Error; - end if; - end Reset_Identifier_Prefix; - - procedure Pop_Identifier_Prefix (Mark : in Id_Mark_Type) is - begin - Identifier_Len := Mark.Len; - Identifier_Local := Mark.Local_Id; - end Pop_Identifier_Prefix; - - procedure Add_String (Len : in out Natural; Str : String) is - begin - Identifier_Buffer (Len + 1 .. Len + Str'Length) := Str; - Len := Len + Str'Length; - end Add_String; - - procedure Add_Nat (Len : in out Natural; Val : Natural) - is - Num : String (1 .. 10); - V : Natural; - P : Natural; - begin - P := Num'Last; - V := Val; - loop - Num (P) := Character'Val (Character'Pos ('0') + V mod 10); - V := V / 10; - exit when V = 0; - P := P - 1; - end loop; - Add_String (Len, Num (P .. Num'Last)); - end Add_Nat; - - -- Convert name_id NAME to a string stored to - -- NAME_BUFFER (1 .. NAME_LENGTH). - -- - -- This encodes extended identifiers. - -- - -- Extended identifier encoding: - -- They start with 'X'. - -- Non extended character [0-9a-zA-Z] are left as is, - -- others are encoded to _XX, where XX is the character position in hex. - -- They finish with "__". - procedure Name_Id_To_String (Name : Name_Id) - is - use Name_Table; - - type Bool_Array_Type is array (Character) of Boolean; - pragma Pack (Bool_Array_Type); - Is_Extended_Char : constant Bool_Array_Type := - ('0' .. '9' | 'A' .. 'Z' | 'a' .. 'z' => False, - others => True); - - N_Len : Natural; - P : Natural; - C : Character; - begin - if Is_Character (Name) then - P := Character'Pos (Name_Table.Get_Character (Name)); - Name_Buffer (1) := 'C'; - Name_Buffer (2) := N2hex (P / 16); - Name_Buffer (3) := N2hex (P mod 16); - Name_Length := 3; - return; - else - Image (Name); - end if; - if Name_Buffer (1) /= '\' then - return; - end if; - -- Extended identifier. - -- Supress trailing backslash. - Name_Length := Name_Length - 1; - - -- Count number of characters in the extended string. - N_Len := Name_Length; - for I in 2 .. Name_Length loop - if Is_Extended_Char (Name_Buffer (I)) then - N_Len := N_Len + 2; - end if; - end loop; - - -- Convert. - Name_Buffer (1) := 'X'; - P := N_Len; - for J in reverse 2 .. Name_Length loop - C := Name_Buffer (J); - if Is_Extended_Char (C) then - Name_Buffer (P - 0) := N2hex (Character'Pos (C) mod 16); - Name_Buffer (P - 1) := N2hex (Character'Pos (C) / 16); - Name_Buffer (P - 2) := '_'; - P := P - 3; - else - Name_Buffer (P) := C; - P := P - 1; - end if; - end loop; - Name_Buffer (N_Len + 1) := '_'; - Name_Buffer (N_Len + 2) := '_'; - Name_Length := N_Len + 2; - end Name_Id_To_String; - - procedure Add_Name (Len : in out Natural; Name : Name_Id) - is - use Name_Table; - begin - Name_Id_To_String (Name); - Add_String (Len, Name_Buffer (1 .. Name_Length)); - end Add_Name; - - procedure Push_Identifier_Prefix (Mark : out Id_Mark_Type; - Name : String; - Val : Iir_Int32 := 0) - is - P : Natural; - begin - Mark.Len := Identifier_Len; - Mark.Local_Id := Identifier_Local; - Identifier_Local := 0; - P := Identifier_Len; - Add_String (P, Name); - if Val > 0 then - Add_String (P, "O"); - Add_Nat (P, Natural (Val)); - end if; - Add_String (P, "__"); - Identifier_Len := P; - end Push_Identifier_Prefix; - - -- Add a suffix to the prefix (!!!). - procedure Push_Identifier_Prefix - (Mark : out Id_Mark_Type; Name : Name_Id; Val : Iir_Int32 := 0) - is - use Name_Table; - begin - Name_Id_To_String (Name); - Push_Identifier_Prefix (Mark, Name_Buffer (1 .. Name_Length), Val); - end Push_Identifier_Prefix; - - procedure Push_Identifier_Prefix_Uniq (Mark : out Id_Mark_Type) - is - Str : String := Local_Identifier_Type'Image (Identifier_Local); - begin - Identifier_Local := Identifier_Local + 1; - Str (1) := 'U'; - Push_Identifier_Prefix (Mark, Str, 0); - end Push_Identifier_Prefix_Uniq; - - procedure Add_Identifier (Len : in out Natural; Id : Name_Id) is - begin - if Id /= Null_Identifier then - Add_Name (Len, Id); - end if; - end Add_Identifier; - - -- Create an identifier from IIR node ID without the prefix. - function Create_Identifier_Without_Prefix (Id : Iir) return O_Ident - is - use Name_Table; - begin - Name_Id_To_String (Get_Identifier (Id)); - return Get_Identifier (Name_Buffer (1 .. Name_Length)); - end Create_Identifier_Without_Prefix; - - function Create_Identifier_Without_Prefix (Id : Name_Id; Str : String) - return O_Ident - is - use Name_Table; - begin - Name_Id_To_String (Id); - Name_Buffer (Name_Length + 1 .. Name_Length + Str'Length) := Str; - return Get_Identifier (Name_Buffer (1 .. Name_Length + Str'Length)); - end Create_Identifier_Without_Prefix; - - -- Create an identifier from IIR node ID with prefix. - function Create_Id (Id : Name_Id; Str : String; Is_Local : Boolean) - return O_Ident - is - L : Natural; - begin - L := Identifier_Len; - Add_Identifier (L, Id); - Add_String (L, Str); - --Identifier_Buffer (L + Str'Length + 1) := Nul; - if Is_Local then - return Get_Identifier - (Identifier_Buffer (Identifier_Start .. L)); - else - return Get_Identifier (Identifier_Buffer (1 .. L)); - end if; - end Create_Id; - - function Create_Identifier (Id : Name_Id; Str : String := "") - return O_Ident - is - begin - return Create_Id (Id, Str, False); - end Create_Identifier; - - function Create_Identifier (Id : Iir; Str : String := "") - return O_Ident - is - begin - return Create_Id (Get_Identifier (Id), Str, False); - end Create_Identifier; - - function Create_Identifier - (Id : Iir; Val : Iir_Int32; Str : String := "") - return O_Ident - is - Len : Natural; - begin - Len := Identifier_Len; - Add_Identifier (Len, Get_Identifier (Id)); - - if Val > 0 then - Add_String (Len, "O"); - Add_Nat (Len, Natural (Val)); - end if; - Add_String (Len, Str); - return Get_Identifier (Identifier_Buffer (1 .. Len)); - end Create_Identifier; - - function Create_Identifier (Str : String) - return O_Ident - is - Len : Natural; - begin - Len := Identifier_Len; - Add_String (Len, Str); - return Get_Identifier (Identifier_Buffer (1 .. Len)); - end Create_Identifier; - - function Create_Identifier return O_Ident - is - begin - return Get_Identifier (Identifier_Buffer (1 .. Identifier_Len - 2)); - end Create_Identifier; - - function Create_Var_Identifier_From_Buffer (L : Natural) - return Var_Ident_Type - is - Start : Natural; - begin - if Is_Local_Scope then - Start := Identifier_Start; - else - Start := 1; - end if; - return (Id => Get_Identifier (Identifier_Buffer (Start .. L))); - end Create_Var_Identifier_From_Buffer; - - function Create_Var_Identifier (Id : Iir) - return Var_Ident_Type - is - L : Natural := Identifier_Len; - begin - Add_Identifier (L, Get_Identifier (Id)); - return Create_Var_Identifier_From_Buffer (L); - end Create_Var_Identifier; - - function Create_Var_Identifier (Id : String) - return Var_Ident_Type - is - L : Natural := Identifier_Len; - begin - Add_String (L, Id); - return Create_Var_Identifier_From_Buffer (L); - end Create_Var_Identifier; - - function Create_Var_Identifier (Id : Iir; Str : String; Val : Natural) - return Var_Ident_Type - is - L : Natural := Identifier_Len; - begin - Add_Identifier (L, Get_Identifier (Id)); - Add_String (L, Str); - if Val > 0 then - Add_String (L, "O"); - Add_Nat (L, Val); - end if; - return Create_Var_Identifier_From_Buffer (L); - end Create_Var_Identifier; - - function Create_Uniq_Identifier return Var_Ident_Type - is - Res : Var_Ident_Type; - begin - Res.Id := Create_Uniq_Identifier; - return Res; - end Create_Uniq_Identifier; - - type Instantiate_Var_Stack; - type Instantiate_Var_Stack_Acc is access Instantiate_Var_Stack; - - type Instantiate_Var_Stack is record - Orig_Scope : Var_Scope_Acc; - Inst_Scope : Var_Scope_Acc; - Prev : Instantiate_Var_Stack_Acc; - end record; - - Top_Instantiate_Var_Stack : Instantiate_Var_Stack_Acc := null; - Free_Instantiate_Var_Stack : Instantiate_Var_Stack_Acc := null; - - procedure Push_Instantiate_Var_Scope - (Inst_Scope : Var_Scope_Acc; Orig_Scope : Var_Scope_Acc) - is - Inst : Instantiate_Var_Stack_Acc; - begin - if Free_Instantiate_Var_Stack = null then - Inst := new Instantiate_Var_Stack; - else - Inst := Free_Instantiate_Var_Stack; - Free_Instantiate_Var_Stack := Inst.Prev; - end if; - Inst.all := (Orig_Scope => Orig_Scope, - Inst_Scope => Inst_Scope, - Prev => Top_Instantiate_Var_Stack); - Top_Instantiate_Var_Stack := Inst; - end Push_Instantiate_Var_Scope; - - procedure Pop_Instantiate_Var_Scope (Inst_Scope : Var_Scope_Acc) - is - Item : constant Instantiate_Var_Stack_Acc := - Top_Instantiate_Var_Stack; - begin - pragma Assert (Item /= null); - pragma Assert (Item.Inst_Scope = Inst_Scope); - Top_Instantiate_Var_Stack := Item.Prev; - Item.all := (Orig_Scope => null, - Inst_Scope => null, - Prev => Free_Instantiate_Var_Stack); - Free_Instantiate_Var_Stack := Item; - end Pop_Instantiate_Var_Scope; - - function Instantiated_Var_Scope (Scope : Var_Scope_Acc) - return Var_Scope_Acc - is - Item : Instantiate_Var_Stack_Acc; - begin - if Scope = null then - return null; - end if; - - Item := Top_Instantiate_Var_Stack; - loop - pragma Assert (Item /= null); - if Item.Orig_Scope = Scope then - return Item.Inst_Scope; - end if; - Item := Item.Prev; - end loop; - end Instantiated_Var_Scope; - - function Instantiate_Var (Var : Var_Type) return Var_Type is - begin - case Var.Kind is - when Var_None - | Var_Global - | Var_Local => - return Var; - when Var_Scope => - return Var_Type' - (Kind => Var_Scope, - I_Field => Var.I_Field, - I_Scope => Instantiated_Var_Scope (Var.I_Scope)); - end case; - end Instantiate_Var; - - function Instantiate_Var_Scope (Scope : Var_Scope_Type) - return Var_Scope_Type is - begin - case Scope.Kind is - when Var_Scope_None - | Var_Scope_Ptr - | Var_Scope_Decl => - return Scope; - when Var_Scope_Field => - return Var_Scope_Type' - (Kind => Var_Scope_Field, - Scope_Type => Scope.Scope_Type, - Field => Scope.Field, - Up_Link => Instantiated_Var_Scope (Scope.Up_Link)); - when Var_Scope_Field_Ptr => - return Var_Scope_Type' - (Kind => Var_Scope_Field_Ptr, - Scope_Type => Scope.Scope_Type, - Field => Scope.Field, - Up_Link => Instantiated_Var_Scope (Scope.Up_Link)); - end case; - end Instantiate_Var_Scope; - end Chap10; package body Chap14 is function Translate_Array_Attribute_To_Range (Expr : Iir) return Mnode @@ -29046,10 +25583,7 @@ package body Translation is Interfaces : O_Inter_List; Param : O_Dnode; begin - -- Create the node extension for translate. - Node_Infos.Init; - Node_Infos.Set_Last (4); - Node_Infos.Table (0 .. 4) := (others => null); + Init_Node_Infos; -- Force to unnest subprograms is the code generator doesn't support -- nested subprograms. @@ -30677,60 +27211,8 @@ package body Translation is procedure Finalize is - Info : Ortho_Info_Acc; - Prev_Info : Ortho_Info_Acc; begin - Prev_Info := null; - for I in Node_Infos.First .. Node_Infos.Last loop - Info := Get_Info (I); - if Info /= null and then Info /= Prev_Info then - case Get_Kind (I) is - when Iir_Kind_Constant_Declaration => - if Get_Deferred_Declaration_Flag (I) = False - and then Get_Deferred_Declaration (I) /= Null_Iir - then - -- Info are copied from incomplete constant declaration - -- to full constant declaration. - Clear_Info (I); - else - Free_Info (I); - end if; - when Iir_Kind_Record_Subtype_Definition - | Iir_Kind_Access_Subtype_Definition => - null; - when Iir_Kind_Enumeration_Type_Definition - | Iir_Kind_Array_Type_Definition - | Iir_Kind_Integer_Subtype_Definition - | Iir_Kind_Floating_Subtype_Definition - | Iir_Kind_Physical_Subtype_Definition - | Iir_Kind_Enumeration_Subtype_Definition => - Free_Type_Info (Info); - when Iir_Kind_Array_Subtype_Definition => - if Get_Index_Constraint_Flag (I) then - Info.T := Ortho_Info_Type_Array_Init; - Free_Type_Info (Info); - end if; - when Iir_Kind_Implicit_Function_Declaration => - case Get_Implicit_Definition (I) is - when Iir_Predefined_Bit_Array_Match_Equality - | Iir_Predefined_Bit_Array_Match_Inequality => - -- Not in sequence. - null; - when others => - -- By default, info are not shared. - -- The exception is infos for implicit subprograms, - -- but they are always consecutive and not free twice - -- due to prev_info mechanism. - Free_Info (I); - end case; - when others => - -- By default, info are not shared. - Free_Info (I); - end case; - Prev_Info := Info; - end if; - end loop; - Node_Infos.Free; + Free_Node_Infos; Free_Old_Temp; end Finalize; |