-- Iir to ortho translator. -- Copyright (C) 2002 - 2014 Tristan Gingold -- -- This program 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 of the License, or -- (at your option) any later version. -- -- This program 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 this program. If not, see . with Name_Table; with Vhdl.Errors; use Vhdl.Errors; with Vhdl.Utils; use Vhdl.Utils; with Vhdl.Evaluation; use Vhdl.Evaluation; with Trans.Chap2; with Trans.Chap4; with Trans.Chap6; with Trans.Chap7; with Trans.Chap14; with Trans_Decls; use Trans_Decls; with Trans.Helpers2; use Trans.Helpers2; package body Trans.Chap3 is use Trans.Helpers; function Create_Static_Type_Definition_Type_Range (Def : Iir) return O_Cnode; procedure Elab_Scalar_Type_Range (Def : Iir; Target : O_Lnode); -- For scalar subtypes: creates info from the base type. procedure Create_Subtype_Info_From_Type (Def : Iir; Base : Iir; Subtype_Info : Type_Info_Acc); function Get_Composite_Type_Layout (Info : Type_Info_Acc) return Mnode is Res : O_Lnode; begin if Info.S.Subtype_Owner /= null then pragma Assert (Info.S.Composite_Layout = Null_Var); Res := M2Lv (Get_Composite_Type_Layout (Info.S.Subtype_Owner)); if Info.S.Owner_Field = null then -- From an array. Res := New_Selected_Element (Res, Info.S.Subtype_Owner.B.Layout_Bounds); Res := New_Selected_Element (Res, Info.S.Subtype_Owner.B.Bounds_El); else -- From a record Res := New_Selected_Element (Res, Info.S.Owner_Field.Field_Bound); end if; else pragma Assert (Info.S.Composite_Layout /= Null_Var); Res := Get_Var (Info.S.Composite_Layout); end if; return Lv2M (Res, Info, Mode_Value, Info.B.Layout_Type, Info.B.Layout_Ptr_Type); end Get_Composite_Type_Layout; function Get_Composite_Type_Layout_Alloc (Info : Type_Info_Acc) return Allocation_Kind is begin if Info.S.Subtype_Owner /= null then return Get_Composite_Type_Layout_Alloc (Info.S.Subtype_Owner); else return Get_Alloc_Kind_For_Var (Info.S.Composite_Layout); end if; end Get_Composite_Type_Layout_Alloc; function Layout_To_Bounds (B : Mnode) return Mnode is Info : constant Type_Info_Acc := Get_Type_Info (B); begin case Info.Type_Mode is when Type_Mode_Arrays => return Lv2M (New_Selected_Element (M2Lv (B), Info.B.Layout_Bounds), Info, Mode_Value, Info.B.Bounds_Type, Info.B.Bounds_Ptr_Type); when Type_Mode_Records => return B; when others => raise Internal_Error; end case; end Layout_To_Bounds; function Layout_To_Sizes (B : Mnode) return O_Lnode is Info : constant Type_Info_Acc := Get_Type_Info (B); begin return New_Selected_Element (M2Lv (B), Info.B.Layout_Size); end Layout_To_Sizes; function Layout_To_Sizes (B : Mnode) return Mnode is begin return Lv2M (Layout_To_Sizes (B), Get_Type_Info (B), Mode_Value, Ghdl_Sizes_Type, Ghdl_Sizes_Ptr); end Layout_To_Sizes; function Sizes_To_Size (Sizes : O_Lnode; Kind : Object_Kind_Type) return O_Lnode is Field : O_Fnode; begin case Kind is when Mode_Value => Field := Ghdl_Sizes_Val; when Mode_Signal => Field := Ghdl_Sizes_Sig; end case; return New_Selected_Element (Sizes, Field); end Sizes_To_Size; function Layout_To_Size (Layout : Mnode; Kind : Object_Kind_Type) return O_Lnode is begin return Sizes_To_Size (M2Lv (Layout_To_Sizes (Layout)), Kind); end Layout_To_Size; function Record_Layout_To_Element_Layout (B : Mnode; El : Iir) return Mnode is El_Type : constant Iir := Get_Type (El); El_Info : constant Field_Info_Acc := Get_Info (El); El_Tinfo : constant Type_Info_Acc := Get_Info (El_Type); begin return Lv2M (New_Selected_Element (M2Lv (B), El_Info.Field_Bound), El_Tinfo, Mode_Value, El_Tinfo.B.Layout_Type, El_Tinfo.B.Layout_Ptr_Type); end Record_Layout_To_Element_Layout; function Record_Layout_To_Element_Offset (B : Mnode; El : Iir; Kind : Object_Kind_Type) return O_Lnode is El_Info : constant Field_Info_Acc := Get_Info (El); begin return New_Selected_Element (M2Lv (B), El_Info.Field_Node (Kind)); end Record_Layout_To_Element_Offset; function Array_Bounds_To_Element_Layout (B : Mnode; Arr_Type : Iir) return Mnode is Arr_Tinfo : constant Type_Info_Acc := Get_Info (Arr_Type); El_Type : constant Iir := Get_Element_Subtype (Arr_Type); El_Tinfo : constant Type_Info_Acc := Get_Info (El_Type); begin return Lv2M (New_Selected_Element (M2Lv (B), Arr_Tinfo.B.Bounds_El), El_Tinfo, Mode_Value, El_Tinfo.B.Layout_Type, El_Tinfo.B.Layout_Ptr_Type); end Array_Bounds_To_Element_Layout; function Array_Layout_To_Element_Layout (B : Mnode; Arr_Type : Iir) return Mnode is begin return Array_Bounds_To_Element_Layout (Layout_To_Bounds (B), Arr_Type); end Array_Layout_To_Element_Layout; procedure Declare_Value_Type (Info : Type_Info_Acc) is begin New_Type_Decl (Create_Identifier, Info.Ortho_Type (Mode_Value)); end Declare_Value_Type; procedure Declare_Signal_Type (Info : Type_Info_Acc) is begin if Info.Ortho_Type (Mode_Signal) /= O_Tnode_Null then New_Type_Decl (Create_Identifier ("SIG"), Info.Ortho_Type (Mode_Signal)); end if; end Declare_Signal_Type; procedure Declare_Value_Ptr_Type (Info : Type_Info_Acc) is begin Info.Ortho_Ptr_Type (Mode_Value) := New_Access_Type (Info.Ortho_Type (Mode_Value)); New_Type_Decl (Create_Identifier ("PTR"), Info.Ortho_Ptr_Type (Mode_Value)); end Declare_Value_Ptr_Type; procedure Declare_Signal_Ptr_Type (Info : Type_Info_Acc) is begin if Info.Ortho_Type (Mode_Signal) /= O_Tnode_Null then Info.Ortho_Ptr_Type (Mode_Signal) := New_Access_Type (Info.Ortho_Type (Mode_Signal)); New_Type_Decl (Create_Identifier ("SIGPTR"), Info.Ortho_Ptr_Type (Mode_Signal)); else Info.Ortho_Ptr_Type (Mode_Signal) := O_Tnode_Null; end if; end Declare_Signal_Ptr_Type; -- Finish a type definition: declare the type, define and declare a -- pointer to the type. procedure Finish_Type_Definition (Info : Type_Info_Acc; Completion : Boolean := False) is begin -- Declare the type. if not Completion then Declare_Value_Type (Info); end if; -- Create an access to the type and declare it. Declare_Value_Ptr_Type (Info); -- Signal type. if Info.Type_Mode in Type_Mode_Scalar then Info.Ortho_Type (Mode_Signal) := Ghdl_Signal_Ptr; Info.Ortho_Ptr_Type (Mode_Signal) := O_Tnode_Null; else Declare_Signal_Type (Info); Declare_Signal_Ptr_Type (Info); end if; end Finish_Type_Definition; -- A builder set internal fields of object pointed by BASE_PTR, using -- memory from BASE_PTR and returns a pointer to the next memory byte -- to be used. procedure Create_Builder_Subprogram_Decl (Info : Type_Info_Acc; Name : Name_Id; Kind : Object_Kind_Type) is Interface_List : O_Inter_List; Ident : O_Ident; begin case Kind is when Mode_Value => Ident := Create_Identifier (Name, "_BUILDER"); when Mode_Signal => Ident := Create_Identifier (Name, "_SIGBUILDER"); end case; -- FIXME: return the same type as its first parameter ??? Start_Procedure_Decl (Interface_List, Ident, Global_Storage); Subprgs.Add_Subprg_Instance_Interfaces (Interface_List, Info.B.Builder (Kind).Builder_Instance); New_Interface_Decl (Interface_List, Info.B.Builder (Kind).Builder_Layout_Param, Get_Identifier ("layout_ptr"), Info.B.Layout_Ptr_Type); Finish_Subprogram_Decl (Interface_List, Info.B.Builder (Kind).Builder_Proc); end Create_Builder_Subprogram_Decl; procedure Gen_Call_Type_Builder (Layout : Mnode; Var_Type : Iir; Kind : Object_Kind_Type) is Binfo : constant Type_Info_Acc := Get_Info (Get_Base_Type (Var_Type)); Assoc : O_Assoc_List; begin Start_Association (Assoc, Binfo.B.Builder (Kind).Builder_Proc); Subprgs.Add_Subprg_Instance_Assoc (Assoc, Binfo.B.Builder (Kind).Builder_Instance); New_Association (Assoc, M2Addr (Layout)); New_Procedure_Call (Assoc); end Gen_Call_Type_Builder; ------------------ -- Enumeration -- ------------------ procedure Set_Ortho_Literal (Target : Iir; Expr : O_Cnode) is Info : Ortho_Info_Acc; begin Info := Add_Info (Target, Kind_Enum_Lit); Info.Lit_Node := Expr; end Set_Ortho_Literal; function Translate_Enumeration_Literal (Lit : Iir_Enumeration_Literal) return O_Ident is El_Str : String (1 .. 4); Id : Name_Id; N : Integer; C : Character; begin Id := Get_Identifier (Lit); if Name_Table.Is_Character (Id) then C := Name_Table.Get_Character (Id); El_Str (1) := 'C'; case C is when 'A' .. 'Z' | 'a' .. 'z' | '0' .. '9' => El_Str (2) := '_'; El_Str (3) := C; when others => N := Character'Pos (Name_Table.Get_Character (Id)); El_Str (2) := N2hex (N / 16); El_Str (3) := N2hex (N mod 16); end case; return Get_Identifier (El_Str (1 .. 3)); else return Create_Identifier_Without_Prefix (Lit); end if; end Translate_Enumeration_Literal; procedure Translate_Enumeration_Type (Def : Iir_Enumeration_Type_Definition) is El_List : constant Iir_Flist := Get_Enumeration_Literal_List (Def); Nbr : constant Natural := Get_Nbr_Elements (El_List); Info : constant Type_Info_Acc := Get_Info (Def); El : Iir_Enumeration_Literal; Constr : O_Enum_List; Lit_Name : O_Ident; Val : O_Cnode; Size : Natural; begin if Nbr <= 256 then Size := 8; else Size := 32; end if; Start_Enum_Type (Constr, Size); for I in Flist_First .. Flist_Last (El_List) loop El := Get_Nth_Element (El_List, I); Lit_Name := Translate_Enumeration_Literal (El); New_Enum_Literal (Constr, Lit_Name, Val); Set_Ortho_Literal (El, Val); end loop; Finish_Enum_Type (Constr, Info.Ortho_Type (Mode_Value)); if Nbr <= 256 then Info.Type_Mode := Type_Mode_E8; Info.B.Align := Align_8; else Info.Type_Mode := Type_Mode_E32; Info.B.Align := Align_32; end if; -- Enumerations are always in their range. Info.S.Nocheck_Low := True; Info.S.Nocheck_Hi := True; Finish_Type_Definition (Info); end Translate_Enumeration_Type; procedure Translate_Bool_Type (Def : Iir_Enumeration_Type_Definition) is Info : constant Type_Info_Acc := Get_Info (Def); El_List : constant Iir_Flist := Get_Enumeration_Literal_List (Def); pragma Assert (Get_Nbr_Elements (El_List) = 2); False_Lit : constant Iir := Get_Nth_Element (El_List, 0); True_Lit : constant Iir := Get_Nth_Element (El_List, 1); False_Node, True_Node : O_Cnode; begin New_Boolean_Type (Info.Ortho_Type (Mode_Value), Translate_Enumeration_Literal (False_Lit), False_Node, Translate_Enumeration_Literal (True_Lit), True_Node); Info.Type_Mode := Type_Mode_B1; Set_Ortho_Literal (False_Lit, False_Node); Set_Ortho_Literal (True_Lit, True_Node); Info.S.Nocheck_Low := True; Info.S.Nocheck_Hi := True; Info.B.Align := Align_8; Finish_Type_Definition (Info); end Translate_Bool_Type; --------------- -- Integer -- --------------- procedure Translate_Integer_Type (Def : Iir_Integer_Type_Definition) is Info : constant Type_Info_Acc := Get_Info (Def); begin case Get_Scalar_Size (Def) is when Scalar_32 => Info.Ortho_Type (Mode_Value) := New_Signed_Type (32); Info.Type_Mode := Type_Mode_I32; Info.B.Align := Align_32; when Scalar_64 => Info.Ortho_Type (Mode_Value) := New_Signed_Type (64); Info.Type_Mode := Type_Mode_I64; Info.B.Align := Align_64; when others => raise Internal_Error; end case; -- Integers are always in their ranges. Info.S.Nocheck_Low := True; Info.S.Nocheck_Hi := True; Finish_Type_Definition (Info); end Translate_Integer_Type; ---------------------- -- Floating types -- ---------------------- procedure Translate_Floating_Type (Def : Iir_Floating_Type_Definition) is Info : constant Type_Info_Acc := Get_Info (Def); begin -- FIXME: should check precision Info.Type_Mode := Type_Mode_F64; Info.B.Align := Align_64; Info.Ortho_Type (Mode_Value) := New_Float_Type; -- Reals are always in their ranges. Info.S.Nocheck_Low := True; Info.S.Nocheck_Hi := True; Finish_Type_Definition (Info); end Translate_Floating_Type; ---------------- -- Physical -- ---------------- procedure Translate_Physical_Type (Def : Iir_Physical_Type_Definition) is Info : constant Type_Info_Acc := Get_Info (Def); begin case Get_Scalar_Size (Def) is when Scalar_32 => Info.Ortho_Type (Mode_Value) := New_Signed_Type (32); Info.Type_Mode := Type_Mode_P32; Info.B.Align := Align_32; when Scalar_64 => Info.Ortho_Type (Mode_Value) := New_Signed_Type (64); Info.Type_Mode := Type_Mode_P64; Info.B.Align := Align_64; when others => raise Internal_Error; end case; -- Physical types are always in their ranges. Info.S.Nocheck_Low := True; Info.S.Nocheck_Hi := True; Finish_Type_Definition (Info); end Translate_Physical_Type; procedure Translate_Physical_Units (Def : Iir_Physical_Type_Definition) is Phy_Type : constant O_Tnode := Get_Ortho_Type (Def, Mode_Value); Unit : Iir; Info : Object_Info_Acc; begin Unit := Get_Unit_Chain (Def); while Unit /= Null_Iir loop Info := Add_Info (Unit, Kind_Object); Info.Object_Var := Create_Var (Create_Var_Identifier (Unit), Phy_Type); Unit := Get_Chain (Unit); end loop; end Translate_Physical_Units; ------------ -- File -- ------------ procedure Translate_File_Type (Def : Iir_File_Type_Definition) is Info : Type_Info_Acc; begin Info := Get_Info (Def); Info.Ortho_Type (Mode_Value) := Ghdl_File_Index_Type; Info.Ortho_Ptr_Type (Mode_Value) := Ghdl_File_Index_Ptr_Type; Info.Type_Mode := Type_Mode_File; Info.B.Align := Align_32; end Translate_File_Type; procedure Create_File_Type_Var (Def : Iir_File_Type_Definition) is Type_Name : constant Iir := Get_Type (Get_File_Type_Mark (Def)); Info : Type_Info_Acc; begin if Get_Kind (Type_Name) in Iir_Kinds_Scalar_Type_And_Subtype_Definition then return; end if; declare Len : constant Natural := Get_File_Signature_Length (Type_Name); Sig : String (1 .. Len + 2); Off : Natural := Sig'First; begin Get_File_Signature (Type_Name, Sig, Off); Sig (Len + 1) := '.'; Sig (Len + 2) := Character'Val (10); Info := Get_Info (Def); Info.B.File_Signature := Create_String (Sig, Create_Identifier ("FILESIG"), Global_Storage); end; end Create_File_Type_Var; ----------------------- -- Unbounded types -- ----------------------- function Type_To_Last_Object_Kind (Def : Iir) return Object_Kind_Type is begin if Get_Has_Signal_Flag (Def) then return Mode_Signal; else return Mode_Value; end if; end Type_To_Last_Object_Kind; -- A fat pointer is a struct with 2 fields: -- * pointer to the object base -- * pointer to the bounds (for arrays) or to the layout (for records) procedure Create_Unbounded_Type_Fat_Pointer (Info : Type_Info_Acc) is Constr : O_Element_List; Bounds_Type : O_Tnode; begin for Kind in Object_Kind_Type loop exit when Info.B.Base_Type (Kind) = O_Tnode_Null; Start_Record_Type (Constr); New_Record_Field (Constr, Info.B.Base_Field (Kind), Wki_Base, Info.B.Base_Ptr_Type (Kind)); case Info.Type_Mode is when Type_Mode_Unbounded_Array => Bounds_Type := Info.B.Bounds_Ptr_Type; when Type_Mode_Unbounded_Record => Bounds_Type := Info.B.Layout_Ptr_Type; when others => raise Internal_Error; end case; New_Record_Field (Constr, Info.B.Bounds_Field (Kind), Wki_Bounds, Bounds_Type); Finish_Record_Type (Constr, Info.Ortho_Type (Kind)); end loop; end Create_Unbounded_Type_Fat_Pointer; procedure Finish_Unbounded_Type_Base (Info : Type_Info_Acc) is Id, Idptr : O_Ident; begin for Kind in Object_Kind_Type loop exit when Info.B.Base_Type (Kind) = O_Tnode_Null; case Kind is when Mode_Value => -- For the values. Id := Create_Identifier ("BASE"); Idptr := Create_Identifier ("BASEP"); when Mode_Signal => -- For the signals Id := Create_Identifier ("SIGBASE"); Idptr := Create_Identifier ("SIGBASEP"); end case; New_Type_Decl (Id, Info.B.Base_Type (Kind)); Info.B.Base_Ptr_Type (Kind) := New_Access_Type (Info.B.Base_Type (Kind)); New_Type_Decl (Idptr, Info.B.Base_Ptr_Type (Kind)); end loop; end Finish_Unbounded_Type_Base; -- Create the dope vector type declaration and access type. procedure Finish_Unbounded_Type_Bounds (Info : Type_Info_Acc) is begin New_Type_Decl (Create_Identifier ("BOUND"), Info.B.Bounds_Type); Info.B.Bounds_Ptr_Type := New_Access_Type (Info.B.Bounds_Type); New_Type_Decl (Create_Identifier ("BOUNDP"), Info.B.Bounds_Ptr_Type); end Finish_Unbounded_Type_Bounds; function Create_Static_Composite_Subtype_Sizes (Def : Iir) return O_Cnode is Info : constant Type_Info_Acc := Get_Info (Def); Sz_List : O_Record_Aggr_List; Sz : O_Cnode; Sz_Res : O_Cnode; begin Start_Record_Aggr (Sz_List, Ghdl_Sizes_Type); New_Record_Aggr_El (Sz_List, New_Sizeof (Info.Ortho_Type (Mode_Value), Ghdl_Index_Type)); if Get_Has_Signal_Flag (Def) then Sz := New_Sizeof (Info.Ortho_Type (Mode_Signal), Ghdl_Index_Type); else Sz := Ghdl_Index_0; end if; New_Record_Aggr_El (Sz_List, Sz); Finish_Record_Aggr (Sz_List, Sz_Res); return Sz_Res; end Create_Static_Composite_Subtype_Sizes; function Create_Static_Array_Subtype_Bounds (Def : Iir) return O_Cnode is Base_Type : constant Iir := Get_Base_Type (Def); Binfo : constant Type_Info_Acc := Get_Info (Base_Type); Indexes_List : constant Iir_Flist := Get_Index_Subtype_List (Def); Index : Iir; El_Type : Iir; List : O_Record_Aggr_List; Res : O_Cnode; begin Start_Record_Aggr (List, Binfo.B.Bounds_Type); for I in Flist_First .. Flist_Last (Indexes_List) loop Index := Get_Index_Type (Indexes_List, I); New_Record_Aggr_El (List, Create_Static_Type_Definition_Type_Range (Index)); end loop; if Binfo.B.Bounds_El /= O_Fnode_Null then -- For arrays of unbounded type. El_Type := Get_Element_Subtype (Def); New_Record_Aggr_El (List, Create_Static_Composite_Subtype_Layout (El_Type)); end if; Finish_Record_Aggr (List, Res); return Res; end Create_Static_Array_Subtype_Bounds; function Create_Static_Record_Subtype_Bounds (Def : Iir) return O_Cnode is Base_Type : constant Iir := Get_Base_Type (Def); Binfo : constant Type_Info_Acc := Get_Info (Base_Type); El_List : constant Iir_Flist := Get_Elements_Declaration_List (Def); El_Blist : constant Iir_Flist := Get_Elements_Declaration_List (Base_Type); Info : constant Type_Info_Acc := Get_Info (Def); List : O_Record_Aggr_List; Res : O_Cnode; El : Iir; El_Type : Iir; Bel : Iir; Bel_Info : Field_Info_Acc; Off : O_Cnode; begin Start_Record_Aggr (List, Binfo.B.Bounds_Type); New_Record_Aggr_El (List, Create_Static_Composite_Subtype_Sizes (Def)); for I in Flist_First .. Flist_Last (El_Blist) loop Bel := Get_Nth_Element (El_Blist, I); Bel_Info := Get_Info (Bel); if Bel_Info.Field_Bound /= O_Fnode_Null then for Kind in Mode_Value .. Type_To_Last_Object_Kind (Base_Type) loop if Info.Ortho_Type (Kind) /= O_Tnode_Null then Off := New_Offsetof (Info.Ortho_Type (Kind), Info.S.Rec_Fields (Iir_Index32 (I)).Fields (Kind), Ghdl_Index_Type); else Off := Ghdl_Index_0; end if; New_Record_Aggr_El (List, Off); end loop; El := Get_Nth_Element (El_List, I); El_Type := Get_Type (El); New_Record_Aggr_El (List, Create_Static_Composite_Subtype_Layout (El_Type)); end if; end loop; Finish_Record_Aggr (List, Res); return Res; end Create_Static_Record_Subtype_Bounds; function Create_Static_Composite_Subtype_Layout (Def : Iir) return O_Cnode is Info : constant Type_Info_Acc := Get_Info (Def); begin case Info.Type_Mode is when Type_Mode_Static_Record | Type_Mode_Complex_Record => return Create_Static_Record_Subtype_Bounds (Def); when Type_Mode_Static_Array | Type_Mode_Complex_Array => declare List : O_Record_Aggr_List; Res : O_Cnode; begin Start_Record_Aggr (List, Info.B.Layout_Type); New_Record_Aggr_El (List, Create_Static_Composite_Subtype_Sizes (Def)); New_Record_Aggr_El (List, Create_Static_Array_Subtype_Bounds (Def)); Finish_Record_Aggr (List, Res); return Res; end; when others => raise Internal_Error; end case; end Create_Static_Composite_Subtype_Layout; procedure Elab_Composite_Subtype_Layout (Def : Iir; Target : Mnode) is Tinfo : constant Type_Info_Acc := Get_Info (Def); begin Open_Temp; case Get_Kind (Def) is when Iir_Kind_Array_Type_Definition | Iir_Kind_Record_Type_Definition => -- Fully unconstrained, no layout to fill. null; when Iir_Kind_Array_Subtype_Definition => declare Parent_Type : constant Iir := Get_Parent_Type (Def); Parent_Tinfo : constant Type_Info_Acc := Get_Info (Parent_Type); New_Indexes : constant Boolean := not Get_Index_Constraint_Flag (Parent_Type); Indexes_List : constant Iir_Flist := Get_Index_Subtype_List (Def); El_Type : Iir; El_Tinfo : Type_Info_Acc; Targ : Mnode; Rng : Mnode; Index : Iir; begin Targ := Layout_To_Bounds (Target); -- Indexes. -- Set only if the array subtype has indexes constraints. if Get_Index_Constraint_Flag (Def) then if Tinfo.B.Bounds_El /= O_Fnode_Null or else Get_Nbr_Elements (Indexes_List) > 1 then Targ := Stabilize (Targ); end if; for I in Flist_First .. Flist_Last (Indexes_List) loop Index := Get_Index_Type (Indexes_List, I); Open_Temp; Rng := Bounds_To_Range (Targ, Def, I + 1); if New_Indexes then Chap7.Translate_Discrete_Range (Rng, Index); else Gen_Memcpy (M2Addr (Rng), M2Addr (Bounds_To_Range (Layout_To_Bounds (Get_Composite_Type_Layout (Parent_Tinfo)), Parent_Type, I + 1)), New_Lit (New_Sizeof (Rng.M1.Vtype, Ghdl_Index_Type))); end if; Close_Temp; end loop; end if; -- Element. if Tinfo.B.Bounds_El /= O_Fnode_Null then El_Type := Get_Element_Subtype (Def); El_Tinfo := Get_Info (El_Type); if Get_Constraint_State (El_Type) = Unconstrained then -- Fully unconstrained, so there is no layout variable -- for it. null; elsif Get_Array_Element_Constraint (Def) = Null_Iir then -- No new constraints. Gen_Memcpy (M2Addr (Array_Bounds_To_Element_Layout (Targ, Def)), M2Addr (Get_Composite_Type_Layout (El_Tinfo)), New_Lit (New_Sizeof (El_Tinfo.B.Layout_Type, Ghdl_Index_Type))); else -- New constraints. Elab_Composite_Subtype_Layout (El_Type, Array_Bounds_To_Element_Layout (Targ, Def)); end if; end if; end; when Iir_Kind_Record_Subtype_Definition => declare El_List : constant Iir_Flist := Get_Elements_Declaration_List (Def); Base_El_List : constant Iir_Flist := Get_Elements_Declaration_List (Get_Base_Type (Def)); Targ : Mnode; El : Iir; Base_El : Iir; El_Type : Iir; begin Targ := Stabilize (Target); for I in Flist_First .. Flist_Last (El_List) loop El := Get_Nth_Element (El_List, I); Base_El := Get_Nth_Element (Base_El_List, I); if Is_Unbounded_Type (Get_Info (Get_Type (Base_El))) then -- FIXME: copy if not new. El_Type := Get_Type (El); Elab_Composite_Subtype_Layout (El_Type, Record_Layout_To_Element_Layout (Targ, El)); end if; end loop; end; when others => Error_Kind ("elab_composite_subtype_layout", Def); end case; Close_Temp; end Elab_Composite_Subtype_Layout; -- Compute sizes for DEF (settings the size fields of layout variable -- TARGET) for all the new constraints. procedure Elab_Composite_Subtype_Size (Def : Iir; Target : Mnode) is Info : constant Type_Info_Acc := Get_Info (Def); T : Mnode; begin case Type_Mode_Composite (Info.Type_Mode) is when Type_Mode_Static_Record | Type_Mode_Static_Array => -- Precomputed. null; when Type_Mode_Complex_Record | Type_Mode_Complex_Array => Open_Temp; T := Stabilize (Target); Gen_Call_Type_Builder (T, Def, Mode_Value); if Get_Has_Signal_Flag (Def) then Gen_Call_Type_Builder (T, Def, Mode_Signal); end if; Close_Temp; when Type_Mode_Unbounded_Record => declare El : Iir; El_Type : Iir; begin El := Get_Owned_Elements_Chain (Def); if El = Null_Iir then -- No new constraints. return; end if; Open_Temp; T := Stabilize (Target); while El /= Null_Iir loop El_Type := Get_Type (El); Elab_Composite_Subtype_Size (El_Type, Record_Layout_To_Element_Layout (T, El)); El := Get_Chain (El); end loop; Close_Temp; end; when Type_Mode_Unbounded_Array => if Get_Array_Element_Constraint (Def) = Null_Iir then -- Element is defined by the subtype. return; end if; Elab_Composite_Subtype_Size (Get_Element_Subtype (Def), Array_Bounds_To_Element_Layout (Layout_To_Bounds (Target), Def)); when Type_Mode_Protected => -- Not expected. raise Internal_Error; end case; end Elab_Composite_Subtype_Size; procedure Elab_Composite_Subtype_Layout (Def : Iir) is Info : constant Type_Info_Acc := Get_Info (Def); begin if Is_Static_Type (Info) then -- Created as a constant. return; end if; -- Fill ranges and length. Elab_Composite_Subtype_Layout (Def, Get_Composite_Type_Layout (Info)); -- Compute sizes for this subtype. Elab_Composite_Subtype_Size (Def, Get_Composite_Type_Layout (Info)); end Elab_Composite_Subtype_Layout; -- Create a variable containing the layout for composite subtype DEF. procedure Create_Composite_Subtype_Layout_Var (Def : Iir; Elab_Now : Boolean) is Info : constant Type_Info_Acc := Get_Info (Def); Val : O_Cnode; begin if Info.S.Composite_Layout /= Null_Var or else Info.S.Subtype_Owner /= null then -- Already created. return; end if; if Info.Type_Mode = Type_Mode_Static_Array or Info.Type_Mode = Type_Mode_Static_Record then if Global_Storage = O_Storage_External then -- Do not create the value of the type desc, since it -- is never dereferenced in a static type desc. Val := O_Cnode_Null; else Val := Create_Static_Composite_Subtype_Layout (Def); end if; Info.S.Composite_Layout := Create_Global_Const (Create_Identifier ("STL"), Info.B.Layout_Type, Global_Storage, Val); else Info.S.Composite_Layout := Create_Var (Create_Var_Identifier ("STL"), Info.B.Layout_Type); if Elab_Now then Elab_Composite_Subtype_Layout (Def); end if; end if; end Create_Composite_Subtype_Layout_Var; ------------- -- Array -- ------------- -- Declare the bounds types for array type definition DEF. -- Bounds type is a record with: -- * a range field for each dimension -- * an element layout if the element is unbounded. procedure Translate_Array_Type_Bounds (Def : Iir_Array_Type_Definition; Info : Type_Info_Acc) is Indexes_List : constant Iir_Flist := Get_Index_Subtype_Definition_List (Def); El_Type : constant Iir := Get_Element_Subtype (Def); El_Info : constant Type_Info_Acc := Get_Info (El_Type); Constr : O_Element_List; Dim : String (1 .. 8); N : Natural; P : Natural; Index : Iir; Index_Info : Index_Info_Acc; Index_Type_Mark : Iir; begin Start_Record_Type (Constr); for I in Flist_First .. Flist_Last (Indexes_List) loop Index_Type_Mark := Get_Nth_Element (Indexes_List, I); Index := Get_Index_Type (Index_Type_Mark); -- Index comes from a type mark. pragma Assert (not Is_Anonymous_Type_Definition (Index)); Index_Info := Add_Info (Index_Type_Mark, Kind_Index); -- Build the name N := I + 1; P := Dim'Last; loop Dim (P) := Character'Val (Character'Pos ('0') + N mod 10); P := P - 1; N := N / 10; exit when N = 0; end loop; P := P - 3; Dim (P .. P + 3) := "dim_"; New_Record_Field (Constr, Index_Info.Index_Field, Get_Identifier (Dim (P .. Dim'Last)), Get_Info (Get_Base_Type (Index)).B.Range_Type); end loop; if Is_Unbounded_Type (El_Info) then -- Add layout for the element. New_Record_Field (Constr, Info.B.Bounds_El, Get_Identifier ("el_layout"), El_Info.B.Layout_Type); end if; Finish_Record_Type (Constr, Info.B.Bounds_Type); Finish_Unbounded_Type_Bounds (Info); end Translate_Array_Type_Bounds; -- Create the layout type. It is a record with: -- * the size field for the size of objects and signals -- * the bounds procedure Create_Array_Type_Layout_Type (Info : Type_Info_Acc) is Constr : O_Element_List; begin Start_Record_Type (Constr); New_Record_Field (Constr, Info.B.Layout_Size, Get_Identifier ("size"), Ghdl_Sizes_Type); New_Record_Field (Constr, Info.B.Layout_Bounds, Get_Identifier ("bounds"), Info.B.Bounds_Type); Finish_Record_Type (Constr, Info.B.Layout_Type); New_Type_Decl (Create_Identifier ("LAYOUT"), Info.B.Layout_Type); Info.B.Layout_Ptr_Type := New_Access_Type (Info.B.Layout_Type); New_Type_Decl (Create_Identifier ("LAYOUTP"), Info.B.Layout_Ptr_Type); end Create_Array_Type_Layout_Type; -- Return the type of INFO for MODE when used as a subelement (of either -- a record or an array). function Get_Ortho_Type_Subelement (Info : Type_Info_Acc; Mode : Object_Kind_Type) return O_Tnode is begin if Is_Unbounded_Type (Info) then return Info.B.Base_Type (Mode); else return Info.Ortho_Type (Mode); end if; end Get_Ortho_Type_Subelement; procedure Translate_Array_Type_Base (Def : Iir_Array_Type_Definition; Info : Type_Info_Acc) is El_Type : constant Iir := Get_Element_Subtype (Def); El_Tinfo : constant Type_Info_Acc := Get_Info (El_Type); begin Info.B.Align := El_Tinfo.B.Align; for Kind in Mode_Value .. Type_To_Last_Object_Kind (Def) loop Info.B.Base_Type (Kind) := New_Array_Type (Get_Ortho_Type_Subelement (El_Tinfo, Kind), Ghdl_Index_Type); end loop; -- Declare the types. Finish_Unbounded_Type_Base (Info); end Translate_Array_Type_Base; procedure Translate_Array_Type (Def : Iir_Array_Type_Definition) is Info : constant Type_Info_Acc := Get_Info (Def); begin Info.Type_Mode := Type_Mode_Fat_Array; Info.B := Ortho_Info_Basetype_Array_Init; Info.S := Ortho_Info_Subtype_Array_Init; Translate_Array_Type_Base (Def, Info); Translate_Array_Type_Bounds (Def, Info); Info.Ortho_Type (Mode_Signal) := O_Tnode_Null; Create_Unbounded_Type_Fat_Pointer (Info); Finish_Type_Definition (Info, False); Create_Array_Type_Layout_Type (Info); Info.Type_Incomplete := False; end Translate_Array_Type; -- Get the length of DEF, ie the number of elements. -- If the length is not statically defined, returns -1. function Get_Array_Subtype_Length (Def : Iir_Array_Subtype_Definition) return Int64 is Indexes_List : constant Iir_Flist := Get_Index_Subtype_List (Def); Index : Iir; Idx_Len : Int64; Len : Int64; begin -- Check if the bounds of the array are locally static. Len := 1; for I in Flist_First .. Flist_Last (Indexes_List) loop Index := Get_Index_Type (Indexes_List, I); if Get_Type_Staticness (Index) /= Locally then return -1; end if; Idx_Len := Eval_Discrete_Type_Length (Index); if Idx_Len < 0 then return -1; end if; -- Do not consider very large arrays as static, to avoid overflow at -- compile time. if Idx_Len >= 2**31 then return -1; end if; Len := Len * Idx_Len; if Len >= 2**31 then return -1; end if; end loop; return Len; end Get_Array_Subtype_Length; procedure Translate_Bounded_Array_Subtype_Definition (Def : Iir_Array_Subtype_Definition; Parent_Type : Iir) is El_Type : constant Iir := Get_Element_Subtype (Def); El_Info : constant Type_Info_Acc := Get_Info (El_Type); Info : constant Type_Info_Acc := Get_Info (Def); Pinfo : constant Type_Info_Acc := Get_Info (Parent_Type); Last_Mode : constant Object_Kind_Type := Type_To_Last_Object_Kind (Def); Len : Int64; begin -- Note: info of indexes subtype are not created! Len := Get_Array_Subtype_Length (Def); Info.Type_Locally_Constrained := (Len >= 0); Info.B := Pinfo.B; Info.S := Ortho_Info_Subtype_Array_Init; if Info.Type_Locally_Constrained and then Is_Static_Type (El_Info) then -- Element and length are static. Info.Type_Mode := Type_Mode_Static_Array; -- Create a subtype. Info.Ortho_Type (Mode_Signal) := O_Tnode_Null; for K in Mode_Value .. Last_Mode loop Info.Ortho_Type (K) := New_Array_Subtype (Pinfo.B.Base_Type (K), El_Info.Ortho_Type (K), New_Index_Lit (Unsigned_64 (Len))); end loop; -- Declare the types. Declare_Value_Type (Info); Declare_Value_Ptr_Type (Info); if Last_Mode = Mode_Signal then Declare_Signal_Type (Info); Declare_Signal_Ptr_Type (Info); end if; else -- This is a complex type as the size is not known at compile -- time. Info.Type_Mode := Type_Mode_Complex_Array; -- Use the base type. Info.Ortho_Type := Pinfo.B.Base_Type; Info.Ortho_Ptr_Type := Pinfo.B.Base_Ptr_Type; end if; end Translate_Bounded_Array_Subtype_Definition; procedure Create_Array_Type_Builder (Def : Iir_Array_Type_Definition; Kind : Object_Kind_Type) is El_Type : constant Iir := Get_Element_Subtype (Def); El_Info : constant Type_Info_Acc := Get_Info (El_Type); Info : constant Type_Info_Acc := Get_Info (Def); Layout_Param : constant O_Dnode := Info.B.Builder (Kind).Builder_Layout_Param; Layout : Mnode; El_Size : O_Enode; Size : O_Enode; begin Start_Subprogram_Body (Info.B.Builder (Kind).Builder_Proc); Subprgs.Start_Subprg_Instance_Use (Info.B.Builder (Kind).Builder_Instance); Open_Local_Temp; Layout := Dp2M (Layout_Param, Info, Kind, Info.B.Layout_Type, Info.B.Layout_Ptr_Type); -- Call the builder to layout the element (only for unbounded elements) if Is_Unbounded_Type (El_Info) then Gen_Call_Type_Builder (Array_Layout_To_Element_Layout (Layout, Def), El_Type, Kind); El_Size := New_Value (Layout_To_Size (Array_Layout_To_Element_Layout (Layout, Def), Kind)); else El_Size := Get_Subtype_Size (El_Type, Mnode_Null, Kind); end if; -- Compute size. Size := New_Dyadic_Op (ON_Mul_Ov, El_Size, Get_Bounds_Length (Layout_To_Bounds (Layout), Def)); -- Set size. New_Assign_Stmt (Layout_To_Size (Layout, Kind), Size); Close_Local_Temp; Subprgs.Finish_Subprg_Instance_Use (Info.B.Builder (Kind).Builder_Instance); Finish_Subprogram_Body; end Create_Array_Type_Builder; function Get_Element_Subtype_For_Info (Arr_Def : Iir) return Iir is Info : constant Type_Info_Acc := Get_Info (Arr_Def); Arr : Iir; begin if Info.Type_Locally_Constrained then Arr := Arr_Def; else -- When an element is constrained, no ortho array is created with -- the constrained element (unless it is statically constrained). -- So use the base type as a fall back (if the element cannot be -- constrained, it is the same as the base type element). Arr := Get_Base_Type (Arr_Def); end if; return Get_Element_Subtype (Arr); end Get_Element_Subtype_For_Info; procedure Translate_Array_Subtype_Definition (Def : Iir) is Parent_Type : constant Iir := Get_Parent_Type (Def); El_Type : constant Iir := Get_Element_Subtype (Def); El_Tinfo : Type_Info_Acc; Mark : Id_Mark_Type; begin -- Handle element subtype. El_Tinfo := Get_Info (El_Type); if El_Tinfo = null then -- Usually, if the array element subtype was not yet translated, -- it's because it is defined by the array subtype (the array -- subtype adds constraints to the elements). -- However, for an aggregate, the array type may not be the owner. -- Do not create vars for element subtype, but use -- the layout field of the array vars. Push_Identifier_Prefix (Mark, "ET"); Translate_Subtype_Definition (El_Type, False); Pop_Identifier_Prefix (Mark); El_Tinfo := Get_Info (El_Type); case El_Tinfo.S.Kind is when Kind_Type_Array | Kind_Type_Record => pragma Assert (El_Tinfo.S.Composite_Layout = Null_Var); El_Tinfo.S.Subtype_Owner := Get_Info (Def); when Kind_Type_Scalar => pragma Assert (El_Tinfo.S.Range_Var /= Null_Var); when Kind_Type_File | Kind_Type_Protected => raise Internal_Error; end case; end if; if Get_Constraint_State (Def) = Fully_Constrained then -- Index constrained. Translate_Bounded_Array_Subtype_Definition (Def, Parent_Type); else -- An unconstrained array subtype. Use same infos as base -- type. -- FIXME: what if bounds are added. declare Tinfo : constant Type_Info_Acc := Get_Info (Def); Parent_Tinfo : constant Type_Info_Acc := Get_Info (Parent_Type); begin Tinfo.all := Parent_Tinfo.all; Tinfo.S.Composite_Layout := Null_Var; Tinfo.Type_Rti := O_Dnode_Null; end; end if; end Translate_Array_Subtype_Definition; -------------- -- record -- -------------- -- Get the alignment mask for *ortho* type ATYPE. function Get_Alignmask (Align : Alignment_Type) return O_Enode is begin return New_Dyadic_Op (ON_Sub_Ov, New_Lit (Align_Val (Align)), New_Lit (Ghdl_Index_1)); end Get_Alignmask; -- Align VALUE (of unsigned type) for type ATYPE. -- The formulae is: (V + (A - 1)) and not (A - 1), where A is the -- alignment for ATYPE in bytes. function Realign (Value : O_Enode; Align : Alignment_Type) return O_Enode is begin return New_Dyadic_Op (ON_And, New_Dyadic_Op (ON_Add_Ov, Value, Get_Alignmask (Align)), New_Monadic_Op (ON_Not, Get_Alignmask (Align))); end Realign; function Realign (Value : O_Enode; Atype : Iir) return O_Enode is Tinfo : constant Type_Info_Acc := Get_Info (Atype); begin return Realign (Value, Tinfo.B.Align); end Realign; procedure Translate_Record_Type (Def : Iir_Record_Type_Definition) is Info : constant Type_Info_Acc := Get_Info (Def); List : constant Iir_Flist := Get_Elements_Declaration_List (Def); Is_Unbounded : constant Boolean := Get_Constraint_State (Def) /= Fully_Constrained; El_List : O_Element_List; El : Iir_Element_Declaration; Field_Info : Ortho_Info_Acc; El_Type : Iir; El_Tinfo : Type_Info_Acc; Align : Alignment_Type; -- True if a size variable will be created since the size of -- the record is not known at compile-time. Is_Complex : Boolean; Mark : Id_Mark_Type; begin -- First, translate the anonymous type of the elements. Align := Align_8; for I in Flist_First .. Flist_Last (List) loop El := Get_Nth_Element (List, I); El_Type := Get_Type (El); El_Tinfo := Get_Info (El_Type); if El_Tinfo = null then Push_Identifier_Prefix (Mark, Get_Identifier (El)); Translate_Subtype_Indication (El_Type, True); Pop_Identifier_Prefix (Mark); El_Tinfo := Get_Info (El_Type); end if; Field_Info := Add_Info (El, Kind_Field); pragma Assert (El_Tinfo.B.Align /= Align_Undef); Align := Alignment_Type'Max (Align, El_Tinfo.B.Align); end loop; Info.B.Align := Align; -- Then create the record type. Info.S := Ortho_Info_Subtype_Record_Init; Info.Ortho_Type (Mode_Signal) := O_Tnode_Null; for Kind in Mode_Value .. Type_To_Last_Object_Kind (Def) loop Start_Record_Type (El_List); for Static in reverse Boolean loop -- First static fields, then non-static ones. for I in Flist_First .. Flist_Last (List) loop El := Get_Nth_Element (List, I); Field_Info := Get_Info (El); El_Tinfo := Get_Info (Get_Type (El)); if Is_Static_Type (El_Tinfo) = Static then New_Record_Field (El_List, Field_Info.Field_Node (Kind), Create_Identifier_Without_Prefix (El), Get_Ortho_Type_Subelement (El_Tinfo, Kind)); end if; end loop; end loop; Finish_Record_Type (El_List, Info.B.Base_Type (Kind)); end loop; -- Create the bounds type Info.B.Bounds_Type := O_Tnode_Null; Start_Record_Type (El_List); New_Record_Field (El_List, Info.B.Layout_Size, Get_Identifier ("size"), Ghdl_Sizes_Type); Is_Complex := False; for I in Flist_First .. Flist_Last (List) loop declare El : constant Iir := Get_Nth_Element (List, I); Field_Info : constant Field_Info_Acc := Get_Info (El); El_Tinfo : constant Type_Info_Acc := Get_Info (Get_Type (El)); Unbounded_El : constant Boolean := Is_Unbounded_Type (El_Tinfo); Complex_El : constant Boolean := Is_Complex_Type (El_Tinfo); begin Is_Complex := Is_Complex or Complex_El; if Unbounded_El or Complex_El then -- Offset New_Record_Field (El_List, Field_Info.Field_Node (Mode_Value), Create_Identifier_Without_Prefix (El, "_OFF"), Ghdl_Index_Type); if Get_Has_Signal_Flag (Def) then New_Record_Field (El_List, Field_Info.Field_Node (Mode_Signal), Create_Identifier_Without_Prefix (El, "_SIGOFF"), Ghdl_Index_Type); end if; end if; if Unbounded_El then New_Record_Field (El_List, Field_Info.Field_Bound, Create_Identifier_Without_Prefix (El, "_BND"), El_Tinfo.B.Layout_Type); end if; end; end loop; Finish_Record_Type (El_List, Info.B.Bounds_Type); Finish_Unbounded_Type_Bounds (Info); -- For records: layout == bounds. Info.B.Layout_Type := Info.B.Bounds_Type; Info.B.Layout_Ptr_Type := Info.B.Bounds_Ptr_Type; if Is_Unbounded then Info.Type_Mode := Type_Mode_Unbounded_Record; Finish_Unbounded_Type_Base (Info); Create_Unbounded_Type_Fat_Pointer (Info); Finish_Type_Definition (Info); else if Is_Complex then Info.Type_Mode := Type_Mode_Complex_Record; else Info.Type_Mode := Type_Mode_Static_Record; end if; Info.Ortho_Type := Info.B.Base_Type; Finish_Type_Definition (Info); Info.B.Base_Ptr_Type := Info.Ortho_Ptr_Type; Create_Composite_Subtype_Layout_Var (Def, False); end if; end Translate_Record_Type; procedure Translate_Record_Subtype_Definition (Def : Iir) is Parent_Type : constant Iir := Get_Parent_Type (Def); Base_Type : constant Iir := Get_Base_Type (Parent_Type); Info : constant Type_Info_Acc := Get_Info (Def); El_List : constant Iir_Flist := Get_Elements_Declaration_List (Def); El_Blist : constant Iir_Flist := Get_Elements_Declaration_List (Base_Type); Parent_Info : constant Type_Info_Acc := Get_Info (Parent_Type); El_Tm_List : constant Iir_Flist := Get_Elements_Declaration_List (Parent_Type); El, B_El : Iir_Element_Declaration; Rec : O_Element_Sublist; El_Tinfo : Type_Info_Acc; Mode : Type_Mode_Type; Fields : Subtype_Fields_Array_Acc; begin -- Translate the newly constrained elements. El := Get_Owned_Elements_Chain (Def); while El /= Null_Iir loop declare El_Type : constant Iir := Get_Type (El); Pos : constant Natural := Natural (Get_Element_Position (El)); B_El : constant Iir := Get_Nth_Element (El_Tm_List, Pos); El_Info : Field_Info_Acc; Mark : Id_Mark_Type; begin -- Copy info (for the bound field). El_Info := Get_Info (B_El); Set_Info (El, El_Info); if Get_Info (El_Type) = null then -- Translate the new constraint. -- Not triggered on ownership, because of aggregate where -- the subtype of a whole aggregate may be defined with bounds -- from an element which can be a string or an aggregate that -- owns the bound. Push_Identifier_Prefix (Mark, Get_Identifier (El)); Translate_Subtype_Definition (El_Type, False); Pop_Identifier_Prefix (Mark); El_Tinfo := Get_Info (El_Type); if Is_Composite (El_Tinfo) then pragma Assert (El_Tinfo.S.Composite_Layout = Null_Var); El_Tinfo.S.Subtype_Owner := Info; El_Tinfo.S.Owner_Field := El_Info; end if; end if; end; El := Get_Chain (El); end loop; -- Mode of the subtype. Mode := Type_Mode_Static_Record; for I in Flist_First .. Flist_Last (El_List) loop declare El : constant Iir := Get_Nth_Element (El_List, I); El_Type : constant Iir := Get_Type (El); El_Tinfo : constant Type_Info_Acc := Get_Info (El_Type); begin if Is_Unbounded_Type (El_Tinfo) then Mode := Type_Mode_Unbounded_Record; -- Cannot be 'worse' than unbounded. exit; elsif Is_Complex_Type (El_Tinfo) then Mode := Type_Mode_Complex_Record; end if; end; end loop; -- By default, use the same representation as the parent type. Info.all := Parent_Info.all; -- However, it is a different subtype which has its own rti. Info.Type_Rti := O_Dnode_Null; if Get_Owned_Elements_Chain (Def) = Null_Iir then -- That's considered as an alias of the type mark. Maybe only the -- resolution is different. return; end if; Info.S := Ortho_Info_Subtype_Record_Init; case Type_Mode_Records (Mode) is when Type_Mode_Unbounded_Record => pragma Assert (Parent_Info.Type_Mode = Type_Mode_Unbounded_Record); -- The subtype is not completly constrained: it cannot be used to -- create objects, so wait until it is completly constrained. -- The subtype is simply an alias. -- In both cases, use the same representation as its type mark. null; when Type_Mode_Complex_Record => -- At least one field is not static. -- Do not over-optimize and consider all the fields that were -- initially unbounded as complex. Info.Type_Mode := Type_Mode_Complex_Record; Info.Ortho_Type := Parent_Info.B.Base_Type; Info.Ortho_Ptr_Type := Parent_Info.B.Base_Ptr_Type; when Type_Mode_Static_Record => -- The subtype is static. Info.Type_Mode := Type_Mode_Static_Record; -- Create the subtypes. Info.Ortho_Type (Mode_Signal) := O_Tnode_Null; Fields := new Subtype_Fields_Array (0 .. Iir_Index32 (Get_Nbr_Elements (El_Blist)) - 1); Fields.all := (others => Subtype_Fields_Null); Info.S.Rec_Fields := Fields; for Kind in Mode_Value .. Type_To_Last_Object_Kind (Def) loop Start_Record_Subtype (Parent_Info.B.Base_Type (Kind), Rec); for Static in reverse Boolean loop for I in Flist_First .. Flist_Last (El_Blist) loop B_El := Get_Nth_Element (El_Blist, I); El_Tinfo := Get_Info (Get_Type (B_El)); if Is_Static_Type (El_Tinfo) then if Static then -- First the bounded fields. New_Subrecord_Field (Rec, Fields (Iir_Index32 (I)).Fields (Kind), El_Tinfo.Ortho_Type (Kind)); Fields (Iir_Index32 (I)).Tinfo := El_Tinfo; end if; else if not Static then -- Then the bounded subtype of unbounded fields. El := Get_Nth_Element (El_List, I); El_Tinfo := Get_Info (Get_Type (El)); New_Subrecord_Field (Rec, Fields (Iir_Index32 (I)).Fields (Kind), El_Tinfo.Ortho_Type (Kind)); Fields (Iir_Index32 (I)).Tinfo := El_Tinfo; end if; end if; end loop; end loop; Finish_Record_Subtype (Rec, Info.Ortho_Type (Kind)); end loop; Finish_Type_Definition (Info); end case; end Translate_Record_Subtype_Definition; procedure Create_Record_Type_Builder (Def : Iir_Record_Type_Definition; Kind : Object_Kind_Type) is Info : constant Type_Info_Acc := Get_Info (Def); Layout_Param : constant O_Dnode := Info.B.Builder (Kind).Builder_Layout_Param; List : constant Iir_Flist := Get_Elements_Declaration_List (Def); Layout : Mnode; Off_Var : O_Dnode; Off_Val : O_Enode; begin Start_Subprogram_Body (Info.B.Builder (Kind).Builder_Proc); Subprgs.Start_Subprg_Instance_Use (Info.B.Builder (Kind).Builder_Instance); Layout := Dp2M (Layout_Param, Info, Kind, Info.B.Layout_Type, Info.B.Layout_Ptr_Type); -- Declare OFF, the offset variable New_Var_Decl (Off_Var, Get_Identifier ("off"), O_Storage_Local, Ghdl_Index_Type); -- Reserve memory for the record, ie: -- off = RECORD_SIZEOF (record). Off_Val := New_Lit (New_Record_Sizeof (Info.B.Base_Type (Kind), Ghdl_Index_Type)); New_Assign_Stmt (New_Obj (Off_Var), Off_Val); -- Set memory for each complex element. for I in Flist_First .. Flist_Last (List) loop declare El : constant Iir := Get_Nth_Element (List, I); El_Type : constant Iir := Get_Type (El); El_Tinfo : constant Type_Info_Acc := Get_Info (El_Type); El_Complex : constant Boolean := Is_Complex_Type (El_Tinfo); El_Unbounded : constant Boolean := Is_Unbounded_Type (El_Tinfo); El_Layout : Mnode; El_Size : O_Enode; begin if El_Unbounded then -- Set layout El_Layout := Record_Layout_To_Element_Layout (Layout, El); Gen_Call_Type_Builder (El_Layout, El_Type, Kind); end if; if El_Unbounded or El_Complex then -- Complex or unbounded type. Field is an offset. -- Align on the innermost array element (which should be -- a record) for Mode_Value. No need to align for signals, -- as all non-composite elements are accesses. Off_Val := New_Obj_Value (Off_Var); if Kind = Mode_Value then Off_Val := Realign (Off_Val, El_Type); end if; New_Assign_Stmt (New_Obj (Off_Var), Off_Val); -- Set the offset. New_Assign_Stmt (Record_Layout_To_Element_Offset (Layout, El, Kind), New_Obj_Value (Off_Var)); if El_Unbounded then El_Layout := Record_Layout_To_Element_Layout (Layout, El); El_Size := New_Value (Sizes_To_Size (Layout_To_Sizes (El_Layout), Kind)); else El_Size := Get_Subtype_Size (El_Type, El_Layout, Kind); end if; New_Assign_Stmt (New_Obj (Off_Var), New_Dyadic_Op (ON_Add_Ov, New_Obj_Value (Off_Var), El_Size)); end if; end; end loop; -- Align the size to the object alignment. Off_Val := New_Obj_Value (Off_Var); if Kind = Mode_Value then Off_Val := Realign (Off_Val, Def); end if; -- Set size. New_Assign_Stmt (Layout_To_Size (Layout, Kind), Off_Val); Subprgs.Finish_Subprg_Instance_Use (Info.B.Builder (Kind).Builder_Instance); Finish_Subprogram_Body; end Create_Record_Type_Builder; -------------- -- Access -- -------------- -- Get the ortho designated type for access type DEF. function Get_Ortho_Designated_Type (Def : Iir_Access_Type_Definition) return O_Tnode is D_Type : constant Iir := Get_Designated_Type (Def); D_Info : constant Type_Info_Acc := Get_Info (D_Type); begin if not Is_Fully_Constrained_Type (D_Type) then return D_Info.B.Bounds_Type; else if D_Info.Type_Mode in Type_Mode_Arrays then -- The designated type cannot be a sub array inside ortho. -- FIXME: lift this restriction. return D_Info.B.Base_Type (Mode_Value); else return D_Info.Ortho_Type (Mode_Value); end if; end if; end Get_Ortho_Designated_Type; procedure Translate_Access_Type (Def : Iir_Access_Type_Definition) is D_Type : constant Iir := Get_Designated_Type (Def); -- Info for designated type may not be a type info: it may be an -- incomplete type. D_Info : constant Ortho_Info_Acc := Get_Info (D_Type); Def_Info : constant Type_Info_Acc := Get_Info (Def); Dtype : O_Tnode; begin -- No access types for signals. Def_Info.Ortho_Type (Mode_Signal) := O_Tnode_Null; if not Is_Fully_Constrained_Type (D_Type) then -- An access type to an unconstrained type definition is a pointer -- to bounds and base. Def_Info.Type_Mode := Type_Mode_Bounds_Acc; else -- Otherwise, it is a thin pointer. Def_Info.Type_Mode := Type_Mode_Acc; end if; Def_Info.B.Align := Align_Ptr; if D_Info.Kind = Kind_Incomplete_Type then -- Incomplete access. Dtype := O_Tnode_Null; else Dtype := Get_Ortho_Designated_Type (Def); end if; Def_Info.Ortho_Type (Mode_Value) := New_Access_Type (Dtype); Finish_Type_Definition (Def_Info); end Translate_Access_Type; ------------------------ -- Incomplete types -- ------------------------ procedure Translate_Incomplete_Type (Def : Iir) is Info : Incomplete_Type_Info_Acc; Ctype : Iir; begin if Is_Null (Get_Incomplete_Type_Ref_Chain (Def)) then -- FIXME: -- This is a work-around for dummy incomplete type (ie incomplete -- types not used before the full type declaration). return; end if; -- Get the complete type definition. Ctype := Get_Complete_Type_Definition (Def); Info := Add_Info (Ctype, Kind_Incomplete_Type); Info.Incomplete_Type := Def; end Translate_Incomplete_Type; procedure Translate_Complete_Type (Incomplete_Info : in out Incomplete_Type_Info_Acc) is Atype : Iir; Def_Info : Type_Info_Acc; begin Atype := Get_Incomplete_Type_Ref_Chain (Incomplete_Info.Incomplete_Type); while Is_Valid (Atype) loop -- Only access type can be completed. pragma Assert (Get_Kind (Atype) = Iir_Kind_Access_Type_Definition); Def_Info := Get_Info (Atype); Finish_Access_Type (Def_Info.Ortho_Type (Mode_Value), Get_Ortho_Designated_Type (Atype)); Atype := Get_Incomplete_Type_Ref_Chain (Atype); end loop; Unchecked_Deallocation (Incomplete_Info); end Translate_Complete_Type; ----------------- -- protected -- ----------------- procedure Translate_Protected_Type (Def : Iir_Protected_Type_Declaration) is Info : constant Type_Info_Acc := Get_Info (Def); Mark : Id_Mark_Type; begin -- The protected type is represented by an incomplete record, that -- will be completed by the protected type body. Predeclare_Scope_Type (Info.B.Prot_Scope, Create_Identifier); Info.Ortho_Type (Mode_Value) := O_Tnode_Null; -- Create a pointer type to that record. Declare_Scope_Acc (Info.B.Prot_Scope, Create_Identifier ("PTR"), Info.Ortho_Ptr_Type (Mode_Value)); -- A protected type cannot be used for signals. Info.Ortho_Type (Mode_Signal) := O_Tnode_Null; Info.Ortho_Ptr_Type (Mode_Signal) := O_Tnode_Null; Info.Type_Mode := Type_Mode_Protected; -- This is just use to set overload number on subprograms, and to -- translate interfaces. Push_Identifier_Prefix (Mark, Get_Identifier (Get_Type_Declarator (Def))); Chap4.Translate_Declaration_Chain (Def); Pop_Identifier_Prefix (Mark); end Translate_Protected_Type; procedure Translate_Protected_Type_Subprograms_Spec (Def : Iir_Protected_Type_Declaration) is Info : constant Type_Info_Acc := Get_Info (Def); El : Iir; Inter_List : O_Inter_List; Mark : Id_Mark_Type; Prev_Subprg_Instance : Subprgs.Subprg_Instance_Stack; begin Push_Identifier_Prefix (Mark, Get_Identifier (Get_Type_Declarator (Def))); -- Init. Start_Function_Decl (Inter_List, Create_Identifier ("INIT"), Global_Storage, Info.Ortho_Ptr_Type (Mode_Value)); Subprgs.Add_Subprg_Instance_Interfaces (Inter_List, Info.B.Prot_Init_Instance); Finish_Subprogram_Decl (Inter_List, Info.B.Prot_Init_Subprg); -- Use the object as instance. Subprgs.Push_Subprg_Instance (Info.B.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); Subprgs.Add_Subprg_Instance_Interfaces (Inter_List, Info.B.Prot_Final_Instance); Finish_Subprogram_Decl (Inter_List, Info.B.Prot_Final_Subprg); -- Methods. El := Get_Declaration_Chain (Def); while El /= Null_Iir loop case Get_Kind (El) is when Iir_Kind_Function_Declaration | Iir_Kind_Procedure_Declaration => -- Translate only if used. if Get_Info (El) /= null then Chap2.Translate_Subprogram_Declaration (El); end if; when Iir_Kind_Attribute_Specification | Iir_Kind_Use_Clause => null; when others => Error_Kind ("translate_protected_type_subprograms_spec", El); end case; El := Get_Chain (El); end loop; Subprgs.Pop_Subprg_Instance (Wki_Obj, Prev_Subprg_Instance); Pop_Identifier_Prefix (Mark); end Translate_Protected_Type_Subprograms_Spec; procedure Translate_Protected_Type_Body (Bod : Iir) is Decl : constant Iir_Protected_Type_Declaration := Get_Protected_Type_Declaration (Bod); Info : constant Type_Info_Acc := Get_Info (Decl); Mark : Id_Mark_Type; begin Push_Identifier_Prefix (Mark, Get_Identifier (Bod)); -- Create the object type Push_Instance_Factory (Info.B.Prot_Scope'Unrestricted_Access); -- First, the previous instance. Subprgs.Add_Subprg_Instance_Field (Info.B.Prot_Subprg_Instance_Field, Info.B.Prot_Prev_Scope); -- Then the object lock Info.B.Prot_Lock_Field := Add_Instance_Factory_Field (Get_Identifier ("LOCK"), Ghdl_Ptr_Type); -- Translate declarations. Chap4.Translate_Declaration_Chain (Bod); Pop_Instance_Factory (Info.B.Prot_Scope'Unrestricted_Access); Pop_Identifier_Prefix (Mark); end Translate_Protected_Type_Body; procedure Call_Ghdl_Protected_Procedure (Type_Def : Iir; Proc : O_Dnode) is Info : constant Type_Info_Acc := Get_Info (Type_Def); Assoc : O_Assoc_List; begin Start_Association (Assoc, Proc); New_Association (Assoc, New_Unchecked_Address (New_Selected_Element (Get_Instance_Ref (Info.B.Prot_Scope), Info.B.Prot_Lock_Field), Ghdl_Ptr_Type)); New_Procedure_Call (Assoc); end Call_Ghdl_Protected_Procedure; procedure Translate_Protected_Type_Body_Subprograms_Spec (Bod : Iir) is Mark : Id_Mark_Type; Decl : constant Iir := Get_Protected_Type_Declaration (Bod); Info : constant Type_Info_Acc := Get_Info (Decl); Prev_Subprg_Instance : Subprgs.Subprg_Instance_Stack; begin Push_Identifier_Prefix (Mark, Get_Identifier (Bod)); -- Subprograms of BOD. Subprgs.Push_Subprg_Instance (Info.B.Prot_Scope'Unrestricted_Access, Info.Ortho_Ptr_Type (Mode_Value), Wki_Obj, Prev_Subprg_Instance); -- Environment is referenced through the object. Subprgs.Start_Prev_Subprg_Instance_Use_Via_Field (Info.B.Prot_Prev_Scope, Info.B.Prot_Subprg_Instance_Field); Chap4.Translate_Declaration_Chain_Subprograms (Bod, Subprg_Translate_Spec_And_Body); Subprgs.Pop_Subprg_Instance (Wki_Obj, Prev_Subprg_Instance); Subprgs.Finish_Prev_Subprg_Instance_Use_Via_Field (Info.B.Prot_Prev_Scope, Info.B.Prot_Subprg_Instance_Field); Pop_Identifier_Prefix (Mark); end Translate_Protected_Type_Body_Subprograms_Spec; procedure Translate_Protected_Type_Body_Subprograms_Body (Bod : Iir) is Decl : constant Iir := Get_Protected_Type_Declaration (Bod); Info : constant Type_Info_Acc := Get_Info (Decl); Final : Boolean; begin pragma Assert (Global_Storage /= O_Storage_External); -- Init subprogram -- Contrary to other subprograms, no object is passed to it. declare Var_Obj : O_Dnode; begin Start_Subprogram_Body (Info.B.Prot_Init_Subprg); Subprgs.Start_Subprg_Instance_Use (Info.B.Prot_Init_Instance); New_Var_Decl (Var_Obj, Wki_Obj, O_Storage_Local, Info.Ortho_Ptr_Type (Mode_Value)); -- Allocate the object New_Assign_Stmt (New_Obj (Var_Obj), Gen_Alloc (Alloc_System, New_Lit (New_Sizeof (Get_Scope_Type (Info.B.Prot_Scope), Ghdl_Index_Type)), Info.Ortho_Ptr_Type (Mode_Value))); Subprgs.Set_Subprg_Instance_Field (Var_Obj, Info.B.Prot_Subprg_Instance_Field, Info.B.Prot_Init_Instance); Set_Scope_Via_Param_Ptr (Info.B.Prot_Scope, Var_Obj); -- Create lock. Call_Ghdl_Protected_Procedure (Decl, Ghdl_Protected_Init); -- Elaborate fields. Open_Temp; Chap4.Elab_Declaration_Chain (Bod, Final); Close_Temp; Clear_Scope (Info.B.Prot_Scope); New_Return_Stmt (New_Obj_Value (Var_Obj)); Subprgs.Finish_Subprg_Instance_Use (Info.B.Prot_Init_Instance); Finish_Subprogram_Body; end; -- Chap4.Translate_Declaration_Chain_Subprograms -- (Bod, Subprg_Translate_Only_Body); -- Fini subprogram begin Start_Subprogram_Body (Info.B.Prot_Final_Subprg); Subprgs.Start_Subprg_Instance_Use (Info.B.Prot_Final_Instance); -- Deallocate fields. if Final or True then Chap4.Final_Declaration_Chain (Bod, True); end if; -- Destroy lock. Call_Ghdl_Protected_Procedure (Decl, Ghdl_Protected_Fini); Subprgs.Finish_Subprg_Instance_Use (Info.B.Prot_Final_Instance); Finish_Subprogram_Body; end; end Translate_Protected_Type_Body_Subprograms_Body; --------------- -- Scalars -- --------------- -- Create a type_range structure. procedure Elab_Scalar_Type_Range (Def : Iir; Target : O_Lnode) is T_Info : constant Type_Info_Acc := Get_Info (Get_Base_Type (Def)); begin Chap7.Translate_Range (Lv2M (Target, T_Info, Mode_Value, T_Info.B.Range_Type, T_Info.B.Range_Ptr_Type), Get_Range_Constraint (Def), Def); end Elab_Scalar_Type_Range; function Create_Static_Scalar_Type_Range (Def : Iir) return O_Cnode is begin return Chap7.Translate_Static_Range (Get_Range_Constraint (Def), Get_Base_Type (Def)); end Create_Static_Scalar_Type_Range; procedure Create_Scalar_Type_Range_Type (Def : Iir; With_Length : Boolean) is Constr : O_Element_List; Info : Ortho_Info_Acc; begin Info := Get_Info (Def); Start_Record_Type (Constr); New_Record_Field (Constr, Info.B.Range_Left, Wki_Left, Info.Ortho_Type (Mode_Value)); New_Record_Field (Constr, Info.B.Range_Right, Wki_Right, Info.Ortho_Type (Mode_Value)); New_Record_Field (Constr, Info.B.Range_Dir, Wki_Dir, Ghdl_Dir_Type_Node); if With_Length then New_Record_Field (Constr, Info.B.Range_Length, Wki_Length, Ghdl_Index_Type); else Info.B.Range_Length := O_Fnode_Null; end if; Finish_Record_Type (Constr, Info.B.Range_Type); New_Type_Decl (Create_Identifier ("TRT"), Info.B.Range_Type); Info.B.Range_Ptr_Type := New_Access_Type (Info.B.Range_Type); New_Type_Decl (Create_Identifier ("TRPTR"), Info.B.Range_Ptr_Type); end Create_Scalar_Type_Range_Type; function Create_Static_Type_Definition_Type_Range (Def : Iir) return O_Cnode is begin case Get_Kind (Def) is when Iir_Kind_Enumeration_Type_Definition | Iir_Kinds_Scalar_Subtype_Definition => return Create_Static_Scalar_Type_Range (Def); when Iir_Kind_Array_Subtype_Definition => return Create_Static_Array_Subtype_Bounds (Def); when Iir_Kind_Array_Type_Definition => return O_Cnode_Null; when others => Error_Kind ("create_static_type_definition_type_range", Def); end case; end Create_Static_Type_Definition_Type_Range; procedure Elab_Type_Definition_Type_Range (Def : Iir) is Target : O_Lnode; Info : Type_Info_Acc; begin case Get_Kind (Def) is when Iir_Kind_Enumeration_Type_Definition => Info := Get_Info (Def); if not Info.S.Same_Range then Target := Get_Var (Info.S.Range_Var); Elab_Scalar_Type_Range (Def, Target); end if; when Iir_Kind_Array_Type_Definition => declare Index_List : constant Iir_Flist := Get_Index_Subtype_List (Def); Index : Iir; begin for I in Flist_First .. Flist_Last (Index_List) loop Index := Get_Index_Type (Index_List, I); if Is_Anonymous_Type_Definition (Index) then Elab_Type_Definition_Type_Range (Index); end if; end loop; end; return; when Iir_Kind_Record_Type_Definition => Info := Get_Info (Def); if Info.S.Composite_Layout /= Null_Var then Elab_Composite_Subtype_Layout (Def); end if; when Iir_Kind_Access_Type_Definition | Iir_Kind_File_Type_Definition | Iir_Kind_Protected_Type_Declaration => return; when others => Error_Kind ("elab_type_definition_type_range", Def); end case; end Elab_Type_Definition_Type_Range; -- Return TRUE iff LIT is equal to the high (IS_HI=TRUE) or low -- (IS_HI=false) limit of the base type of DEF. MODE is the mode of -- DEF. function Is_Equal_Limit (Lit : Iir; Is_Hi : Boolean; Def : Iir; Mode : Type_Mode_Type) return Boolean is begin case Mode is when Type_Mode_B1 => declare V : Iir_Int32; begin V := Iir_Int32 (Eval_Pos (Lit)); if Is_Hi then return V = 1; else return V = 0; end if; end; when Type_Mode_E8 => declare V : Iir_Int32; Base_Type : Iir; begin V := Iir_Int32 (Eval_Pos (Lit)); if Is_Hi then Base_Type := Get_Base_Type (Def); return V = Iir_Int32 (Get_Nbr_Elements (Get_Enumeration_Literal_List (Base_Type))) - 1; else return V = 0; end if; end; when Type_Mode_I32 => declare V : Int64; begin V := Get_Value (Lit); if Is_Hi then return V = Int64 (Iir_Int32'Last); else return V = Int64 (Iir_Int32'First); end if; end; when Type_Mode_P32 => declare V : Iir_Int32; begin V := Iir_Int32 (Get_Physical_Value (Lit)); if Is_Hi then return V = Iir_Int32'Last; else return V = Iir_Int32'First; end if; end; when Type_Mode_I64 => declare V : Int64; begin V := Get_Value (Lit); if Is_Hi then return V = Int64'Last; else return V = Int64'First; end if; end; when Type_Mode_P64 => declare V : Int64; begin V := Get_Physical_Value (Lit); if Is_Hi then return V = Int64'Last; else return V = Int64'First; end if; end; when Type_Mode_F64 => -- Don't include +/- Inf return False; when others => Error_Kind ("is_equal_limit " & Type_Mode_Type'Image (Mode), Lit); end case; end Is_Equal_Limit; -- For scalar subtypes: creates info from the base type. procedure Create_Subtype_Info_From_Type (Def : Iir; Base : Iir; Subtype_Info : Type_Info_Acc) is Base_Info : constant Type_Info_Acc := Get_Info (Base); Rng : constant Iir := Get_Range_Constraint (Def); Lo, Hi : Iir; begin Subtype_Info.Ortho_Type := Base_Info.Ortho_Type; Subtype_Info.Ortho_Ptr_Type := Base_Info.Ortho_Ptr_Type; Subtype_Info.Type_Mode := Base_Info.Type_Mode; Subtype_Info.B := Base_Info.B; Subtype_Info.S := Base_Info.S; -- If the range is the same as its parent (its type_mark), set -- Same_Range and return (so that no new range variable would be -- created). case Get_Kind (Base) is when Iir_Kinds_Scalar_Subtype_Definition => declare Tm_Rng : constant Iir := Get_Range_Constraint (Base); begin if Tm_Rng = Rng then Subtype_Info.S.Same_Range := True; return; elsif Get_Kind (Rng) = Iir_Kind_Range_Expression and then Get_Kind (Tm_Rng) = Iir_Kind_Range_Expression and then Get_Left_Limit (Rng) = Get_Left_Limit (Tm_Rng) and then Get_Right_Limit (Rng) = Get_Right_Limit (Tm_Rng) and then Get_Direction (Rng) = Get_Direction (Tm_Rng) then Subtype_Info.S.Same_Range := True; return; end if; end; when Iir_Kind_Enumeration_Type_Definition => if Get_Kind (Rng) = Iir_Kind_Range_Expression and then Get_Direction (Rng) = Dir_To then declare Left : constant Iir := Get_Left_Limit (Rng); Right : constant Iir := Get_Right_Limit (Rng); begin if Get_Kind (Left) = Iir_Kind_Enumeration_Literal and then Get_Enum_Pos (Left) = 0 and then Get_Kind (Right) = Iir_Kind_Enumeration_Literal and then Natural (Get_Enum_Pos (Right)) = (Get_Nbr_Elements (Get_Enumeration_Literal_List (Base)) - 1) then Subtype_Info.S.Same_Range := True; return; end if; end; end if; when others => null; end case; -- So range is not the same. Subtype_Info.S.Same_Range := False; Subtype_Info.S.Range_Var := Null_Var; if Get_Expr_Staticness (Rng) /= Locally then -- Bounds are not known. -- Do the checks. Subtype_Info.S.Nocheck_Hi := False; Subtype_Info.S.Nocheck_Low := False; else -- Bounds are locally static. Get_Low_High_Limit (Rng, Lo, Hi); if Is_Overflow_Literal (Hi) or else Is_Overflow_Literal (Lo) then Subtype_Info.S.Nocheck_Hi := True; Subtype_Info.S.Nocheck_Low := True; else Subtype_Info.S.Nocheck_Hi := Is_Equal_Limit (Hi, True, Def, Base_Info.Type_Mode); Subtype_Info.S.Nocheck_Low := Is_Equal_Limit (Lo, False, Def, Base_Info.Type_Mode); end if; end if; end Create_Subtype_Info_From_Type; procedure Create_Type_Range_Var (Def : Iir) is Info : constant Type_Info_Acc := Get_Info (Def); Base_Info : Type_Info_Acc; Val : O_Cnode; Suffix : String (1 .. 3) := "xTR"; begin pragma Assert (Info.S.Range_Var = Null_Var); case Get_Kind (Def) is when Iir_Kinds_Subtype_Definition => Suffix (1) := 'S'; -- "STR"; when Iir_Kind_Enumeration_Type_Definition => Suffix (1) := 'B'; -- "BTR"; when others => raise Internal_Error; end case; Base_Info := Get_Info (Get_Base_Type (Def)); case Get_Type_Staticness (Def) is when None | Globally => Info.S.Range_Var := Create_Var (Create_Var_Identifier (Suffix), Base_Info.B.Range_Type); when Locally => if Global_Storage = O_Storage_External then -- Do not create the value of the type desc, since it -- is never dereferenced in a static type desc. Val := O_Cnode_Null; else Val := Create_Static_Type_Definition_Type_Range (Def); end if; Info.S.Range_Var := Create_Global_Const (Create_Identifier (Suffix), Base_Info.B.Range_Type, Global_Storage, Val); when Unknown => raise Internal_Error; end case; end Create_Type_Range_Var; -- Call HANDLE_A_SUBTYPE for all type/subtypes declared with DEF -- (of course, this is a noop if DEF is not a composite type). generic with procedure Handle_A_Subtype (Atype : Iir); procedure Handle_Anonymous_Subtypes (Def : Iir); procedure Handle_Anonymous_Subtypes (Def : Iir) is begin case Get_Kind (Def) is when Iir_Kind_Array_Type_Definition | Iir_Kind_Array_Subtype_Definition => declare Asub : Iir; begin Asub := Get_Element_Subtype (Def); if Is_Anonymous_Type_Definition (Asub) then Handle_A_Subtype (Asub); end if; end; when Iir_Kind_Record_Type_Definition => declare List : constant Iir_Flist := Get_Elements_Declaration_List (Def); El : Iir; Asub : Iir; begin for I in Flist_First .. Flist_Last (List) loop El := Get_Nth_Element (List, I); Asub := Get_Type (El); if Is_Anonymous_Type_Definition (Asub) then Handle_A_Subtype (Asub); end if; end loop; end; when Iir_Kind_Record_Subtype_Definition => declare List : constant Iir_Flist := Get_Elements_Declaration_List (Def); El : Iir; Asub : Iir; begin for I in Flist_First .. Flist_Last (List) loop El := Get_Nth_Element (List, I); if Get_Kind (El) = Iir_Kind_Record_Element_Constraint then Asub := Get_Type (El); if Is_Anonymous_Type_Definition (Asub) then Handle_A_Subtype (Asub); end if; end if; end loop; end; when others => null; end case; end Handle_Anonymous_Subtypes; procedure Translate_Array_Element_Definition (Def : Iir) is El_Type : constant Iir := Get_Element_Subtype (Def); Mark : Id_Mark_Type; begin if Get_Info (El_Type) = null then Push_Identifier_Prefix (Mark, "ET"); Translate_Subtype_Indication (El_Type, True); Pop_Identifier_Prefix (Mark); end if; end Translate_Array_Element_Definition; -- Note: boolean types are translated by translate_bool_type_definition! procedure Translate_Type_Definition (Def : Iir) is Info : Ortho_Info_Acc; Complete_Info : Incomplete_Type_Info_Acc; begin -- Handle the special case of incomplete type. if Get_Kind (Def) = Iir_Kind_Incomplete_Type_Definition then Translate_Incomplete_Type (Def); return; end if; -- If the definition is already translated, return now. Info := Get_Info (Def); if Info /= null then case Info.Kind is when Kind_Type => -- The subtype was already translated. return; when Kind_Incomplete_Type => -- Type is being completed. Complete_Info := Info; Clear_Info (Def); when others => raise Internal_Error; end case; else Complete_Info := null; end if; Info := Add_Info (Def, Kind_Type); case Get_Kind (Def) is when Iir_Kind_Enumeration_Type_Definition => Translate_Enumeration_Type (Def); Create_Scalar_Type_Range_Type (Def, True); Create_Type_Range_Var (Def); when Iir_Kind_Integer_Type_Definition => Translate_Integer_Type (Def); Create_Scalar_Type_Range_Type (Def, True); when Iir_Kind_Physical_Type_Definition => Translate_Physical_Type (Def); Create_Scalar_Type_Range_Type (Def, False); if Get_Type_Staticness (Def) /= Locally then Translate_Physical_Units (Def); else Info.S.Range_Var := Null_Var; end if; when Iir_Kind_Floating_Type_Definition => Translate_Floating_Type (Def); Create_Scalar_Type_Range_Type (Def, False); when Iir_Kind_Array_Type_Definition => Translate_Array_Element_Definition (Def); Translate_Array_Type (Def); when Iir_Kind_Record_Type_Definition => Info.B := Ortho_Info_Basetype_Record_Init; Translate_Record_Type (Def); when Iir_Kind_Access_Type_Definition => declare Dtype : constant Iir := Get_Designated_Type (Def); Mark : Id_Mark_Type; begin -- Translate the subtype if Is_Anonymous_Type_Definition (Dtype) then Push_Identifier_Prefix (Mark, "AT"); Translate_Subtype_Indication (Dtype, True); Pop_Identifier_Prefix (Mark); end if; Translate_Access_Type (Def); end; when Iir_Kind_File_Type_Definition => Info.B := Ortho_Info_Basetype_File_Init; Translate_File_Type (Def); Create_File_Type_Var (Def); when Iir_Kind_Protected_Type_Declaration => Info.B := Ortho_Info_Basetype_Prot_Init; Translate_Protected_Type (Def); when others => Error_Kind ("translate_type_definition", Def); end case; if Complete_Info /= null then Translate_Complete_Type (Complete_Info); end if; end Translate_Type_Definition; procedure Translate_Bool_Type_Definition (Def : Iir) is Info : Type_Info_Acc; pragma Unreferenced (Info); begin -- Not already translated. pragma Assert (Get_Info (Def) = null); -- A boolean type is an enumerated type. pragma Assert (Get_Kind (Def) = Iir_Kind_Enumeration_Type_Definition); Info := Add_Info (Def, Kind_Type); Translate_Bool_Type (Def); -- This is usually done in translate_type_definition, but boolean -- types are not handled by translate_type_definition. Create_Scalar_Type_Range_Type (Def, True); Create_Type_Range_Var (Def); end Translate_Bool_Type_Definition; procedure Translate_Subtype_Definition (Def : Iir; With_Vars : Boolean := True) is Info : Ortho_Info_Acc; Complete_Info : Incomplete_Type_Info_Acc; begin -- If the definition is already translated, return now. Info := Get_Info (Def); if Info /= null then case Info.Kind is when Kind_Type => -- The subtype was already translated. return; when Kind_Incomplete_Type => -- Type is being completed. Complete_Info := Info; Clear_Info (Def); when others => raise Internal_Error; end case; else Complete_Info := null; end if; Info := Add_Info (Def, Kind_Type); case Get_Kind (Def) is when Iir_Kinds_Scalar_Subtype_Definition => Create_Subtype_Info_From_Type (Def, Get_Parent_Type (Def), Info); if With_Vars and then not Info.S.Same_Range then Create_Type_Range_Var (Def); end if; when Iir_Kind_Array_Subtype_Definition => Translate_Array_Subtype_Definition (Def); if With_Vars -- and then Get_Index_Constraint_Flag (Def) then Create_Composite_Subtype_Layout_Var (Def, False); end if; when Iir_Kind_Record_Subtype_Definition => Translate_Record_Subtype_Definition (Def); if With_Vars and then Get_Owned_Elements_Chain (Def) /= Null_Iir then Create_Composite_Subtype_Layout_Var (Def, False); end if; when Iir_Kind_Access_Subtype_Definition => -- Like the access type. Free_Info (Def); Set_Info (Def, Get_Info (Get_Parent_Type (Def))); when others => Error_Kind ("translate_subtype_definition", Def); end case; if Complete_Info /= null then Translate_Complete_Type (Complete_Info); end if; end Translate_Subtype_Definition; procedure Translate_Type_Subprograms (Decl : Iir; Kind : Subprg_Translate_Kind) is Def : constant Iir := Get_Type_Definition (Decl); Tinfo : Type_Info_Acc; Id : Name_Id; begin case Get_Kind (Def) is when Iir_Kind_Incomplete_Type_Definition => return; when Iir_Kind_Protected_Type_Declaration => if Kind in Subprg_Translate_Spec then Translate_Protected_Type_Subprograms_Spec (Def); end if; return; when Iir_Kind_Record_Type_Definition | Iir_Kind_Array_Type_Definition => null; when Iir_Kind_Integer_Type_Definition | Iir_Kind_Enumeration_Type_Definition | Iir_Kind_Floating_Type_Definition | Iir_Kind_Physical_Type_Definition | Iir_Kind_File_Type_Definition | Iir_Kind_Access_Type_Definition => -- Never complex. return; when others => raise Internal_Error; end case; -- Create builder for arrays and non-static records Tinfo := Get_Info (Def); case Tinfo.Type_Mode is when Type_Mode_Fat_Array | Type_Mode_Unbounded_Record | Type_Mode_Complex_Record => null; when Type_Mode_Static_Record => return; when others => -- Must have been filtered out above. raise Internal_Error; end case; if Kind in Subprg_Translate_Spec then -- Declare subprograms. Id := Get_Identifier (Decl); for Kind in Mode_Value .. Type_To_Last_Object_Kind (Def) loop Create_Builder_Subprogram_Decl (Tinfo, Id, Kind); end loop; end if; if Kind in Subprg_Translate_Body then if Global_Storage = O_Storage_External then return; end if; -- Define subprograms. case Get_Kind (Def) is when Iir_Kind_Array_Type_Definition => for Kind in Mode_Value .. Type_To_Last_Object_Kind (Def) loop Create_Array_Type_Builder (Def, Kind); end loop; when Iir_Kind_Record_Type_Definition => for Kind in Mode_Value .. Type_To_Last_Object_Kind (Def) loop Create_Record_Type_Builder (Def, Kind); end loop; when others => Error_Kind ("translate_type_subprograms", Def); end case; end if; end Translate_Type_Subprograms; -- Initialize the objects related to a type (type range and type -- descriptor). procedure Elab_Type_Definition (Def : Iir); procedure Elab_Subtype_Definition (Def : Iir); procedure Elab_Type_Definition_Depend is new Handle_Anonymous_Subtypes (Handle_A_Subtype => Elab_Subtype_Definition); procedure Elab_Type_Definition (Def : Iir) is begin case Get_Kind (Def) is when Iir_Kind_Incomplete_Type_Definition => -- Nothing to do. return; when Iir_Kind_Protected_Type_Declaration => -- Elaboration subprograms interfaces. declare Final : Boolean; begin Chap4.Elab_Declaration_Chain (Def, Final); -- No finalizer in protected types (only subprograms). pragma Assert (Final = False); end; return; when others => null; end case; if Get_Type_Staticness (Def) = Locally then return; end if; Elab_Type_Definition_Depend (Def); Elab_Type_Definition_Type_Range (Def); end Elab_Type_Definition; procedure Translate_Subtype_Indication (Def : Iir; With_Vars : Boolean) is begin Translate_Subtype_Definition (Def, With_Vars); end Translate_Subtype_Indication; procedure Translate_Named_Subtype_Definition (Def : Iir; Id : Name_Id) is Mark : Id_Mark_Type; begin Push_Identifier_Prefix (Mark, Id); Chap3.Translate_Subtype_Indication (Def, True); Pop_Identifier_Prefix (Mark); end Translate_Named_Subtype_Definition; procedure Translate_Anonymous_Subtype_Definition (Def : Iir; With_Vars : Boolean) is Type_Info : constant Type_Info_Acc := Get_Info (Def); Mark : Id_Mark_Type; begin if Type_Info /= null then return; end if; Push_Identifier_Prefix_Uniq (Mark); Chap3.Translate_Subtype_Definition (Def, With_Vars); Pop_Identifier_Prefix (Mark); end Translate_Anonymous_Subtype_Definition; procedure Translate_Object_Subtype_Indication (Decl : Iir; With_Vars : Boolean := True) is Def : Iir; Ind : Iir; Mark : Id_Mark_Type; Mark2 : Id_Mark_Type; begin -- Notes about subtype_indication and type in a declaration: -- 1) The subtype_indication is owned by the first declared -- object when there is a list of identifiers. The following -- declarations are ref. if Get_Is_Ref (Decl) then return; end if; -- 3) An object alias always have a type but may have no subtype -- indication. Maybe this should be handled separately. -- 4) An anonymous_signal_declaration has no subtype indication. -- 5) It is not possible to translate the type when the subtype -- indication is a subtype_attribute. So this is an exception -- TODO: if there is a list of identifiers. Push_Identifier_Prefix (Mark, Get_Identifier (Decl)); Def := Get_Type (Decl); -- 2) Constants may have a type that is different from the subtype -- indication, when the subtype indication is not fully constrained. -- This is new with vhdl 2008, where the subtype indication may -- add some constraints on the type mark and the initial value add -- even more constraints. if Get_Kind (Decl) = Iir_Kind_Constant_Declaration then Ind := Get_Subtype_Indication (Decl); Ind := Get_Type_Of_Subtype_Indication (Ind); if Ind /= Def then Push_Identifier_Prefix (Mark2, "OTI"); Chap3.Translate_Subtype_Definition (Ind, With_Vars); Pop_Identifier_Prefix (Mark2); end if; end if; Push_Identifier_Prefix (Mark2, "OT"); Chap3.Translate_Subtype_Definition (Def, With_Vars); Pop_Identifier_Prefix (Mark2); Pop_Identifier_Prefix (Mark); end Translate_Object_Subtype_Indication; procedure Elab_Object_Subtype_Indication (Decl : Iir) is Def : constant Iir := Get_Type (Decl); begin if not Is_Anonymous_Type_Definition (Def) then -- The type refers to a declared type, so already handled. return; end if; declare Ind : constant Iir := Get_Subtype_Indication (Decl); begin if Ind /= Null_Iir and then Get_Kind (Ind) = Iir_Kind_Subtype_Attribute then if Is_Fully_Constrained_Type (Get_Type (Get_Prefix (Ind))) then return; end if; raise Internal_Error; else Elab_Subtype_Definition (Def); end if; end; end Elab_Object_Subtype_Indication; procedure Elab_Type_Declaration (Decl : Iir) is begin Elab_Type_Definition (Get_Type_Definition (Decl)); end Elab_Type_Declaration; procedure Elab_Subtype_Definition (Def : Iir) is Target : O_Lnode; Info : Type_Info_Acc; begin if Get_Type_Staticness (Def) = Locally then return; end if; case Get_Kind (Def) is when Iir_Kinds_Scalar_Subtype_Definition => Info := Get_Info (Def); if not Info.S.Same_Range then Target := Get_Var (Info.S.Range_Var); Elab_Scalar_Type_Range (Def, Target); end if; when Iir_Kind_Record_Subtype_Definition | Iir_Kind_Array_Subtype_Definition => Info := Get_Info (Def); if Info.S.Composite_Layout /= Null_Var then Elab_Composite_Subtype_Layout (Def); end if; when Iir_Kind_Access_Subtype_Definition => null; when others => Error_Kind ("elab_subtype_definition", Def); end case; end Elab_Subtype_Definition; procedure Elab_Subtype_Declaration (Decl : Iir_Subtype_Declaration) is Def : constant Iir := Get_Type (Decl); begin Elab_Subtype_Definition (Def); end Elab_Subtype_Declaration; function Get_Static_Array_Length (Atype : Iir) return Int64 is Indexes_List : constant Iir_Flist := Get_Index_Subtype_List (Atype); Nbr_Dim : constant Natural := Get_Nbr_Elements (Indexes_List); Index : Iir; Val : Int64; Rng : Iir; begin Val := 1; for I in 0 .. Nbr_Dim - 1 loop Index := Get_Index_Type (Indexes_List, I); Rng := Get_Range_Constraint (Index); Val := Val * Eval_Discrete_Range_Length (Rng); end loop; return Val; -- return New_Unsigned_Literal (Ghdl_Index_Type, Unsigned_64 (Val)); end Get_Static_Array_Length; function Get_Thin_Array_Length (Atype : Iir) return O_Cnode is begin return New_Index_Lit (Unsigned_64 (Get_Static_Array_Length (Atype))); end Get_Thin_Array_Length; function Bounds_To_Range (B : Mnode; Atype : Iir; Dim : Positive) return Mnode is Indexes_List : constant Iir_Flist := Get_Index_Subtype_Definition_List (Get_Base_Type (Atype)); Index_Type_Mark : constant Iir := Get_Nth_Element (Indexes_List, Dim - 1); Index_Type : constant Iir := Get_Index_Type (Index_Type_Mark); Base_Index_Info : constant Index_Info_Acc := Get_Info (Index_Type_Mark); Iinfo : constant Type_Info_Acc := Get_Info (Get_Base_Type (Index_Type)); begin return Lv2M (New_Selected_Element (M2Lv (B), Base_Index_Info.Index_Field), Iinfo, Mode_Value, Iinfo.B.Range_Type, Iinfo.B.Range_Ptr_Type); end Bounds_To_Range; function Record_Bounds_To_Element_Bounds (B : Mnode; El : Iir) return Mnode is begin return Layout_To_Bounds (Record_Layout_To_Element_Layout (B, El)); end Record_Bounds_To_Element_Bounds; function Array_Bounds_To_Element_Bounds (B : Mnode; Arr_Type : Iir) return Mnode is begin return Layout_To_Bounds (Array_Bounds_To_Element_Layout (B, Arr_Type)); end Array_Bounds_To_Element_Bounds; function Array_Bounds_To_Element_Size (B : Mnode; Arr_Type : Iir; Mode : Object_Kind_Type) return O_Lnode is begin return Layout_To_Size (Array_Bounds_To_Element_Layout (B, Arr_Type), Mode); end Array_Bounds_To_Element_Size; function Type_To_Range (Atype : Iir) return Mnode is Info : constant Type_Info_Acc := Get_Info (Atype); begin return Varv2M (Info.S.Range_Var, Info, Mode_Value, Info.B.Range_Type, Info.B.Range_Ptr_Type); end Type_To_Range; function Range_To_Length (R : Mnode) return Mnode is Tinfo : constant Type_Info_Acc := Get_Type_Info (R); begin return Lv2M (New_Selected_Element (M2Lv (R), Tinfo.B.Range_Length), Tinfo, Mode_Value); end Range_To_Length; function Range_To_Dir (R : Mnode) return Mnode is Tinfo : constant Type_Info_Acc := Get_Type_Info (R); begin return Lv2M (New_Selected_Element (M2Lv (R), Tinfo.B.Range_Dir), Tinfo, Mode_Value); end Range_To_Dir; function Range_To_Left (R : Mnode) return Mnode is Tinfo : Type_Info_Acc; begin Tinfo := Get_Type_Info (R); return Lv2M (New_Selected_Element (M2Lv (R), Tinfo.B.Range_Left), Tinfo, Mode_Value); end Range_To_Left; function Range_To_Right (R : Mnode) return Mnode is Tinfo : Type_Info_Acc; begin Tinfo := Get_Type_Info (R); return Lv2M (New_Selected_Element (M2Lv (R), Tinfo.B.Range_Right), Tinfo, Mode_Value); end Range_To_Right; function Get_Composite_Type_Bounds (Atype : Iir) return Mnode is begin return Layout_To_Bounds (Get_Composite_Type_Layout (Get_Info (Atype))); end Get_Composite_Type_Bounds; function Get_Composite_Bounds (Obj : Mnode) return Mnode is Info : constant Type_Info_Acc := Get_Type_Info (Obj); begin case Info.Type_Mode is when Type_Mode_Unbounded_Array | Type_Mode_Unbounded_Record => declare Kind : constant Object_Kind_Type := Get_Object_Kind (Obj); begin return Lp2M (New_Selected_Element (M2Lv (Obj), Info.B.Bounds_Field (Kind)), Info, Kind, Info.B.Bounds_Type, Info.B.Bounds_Ptr_Type); end; when Type_Mode_Bounded_Arrays => return Layout_To_Bounds (Get_Composite_Type_Layout (Info)); when Type_Mode_Bounded_Records => return Get_Composite_Type_Layout (Info); when Type_Mode_Bounds_Acc => return Lp2M (M2Lv (Obj), Info, Mode_Value); when others => raise Internal_Error; end case; end Get_Composite_Bounds; function Get_Array_Range (Arr : Mnode; Atype : Iir; Dim : Positive) return Mnode is begin return Bounds_To_Range (Get_Composite_Bounds (Arr), Atype, Dim); end Get_Array_Range; function Get_Bounds_Length (Bounds : Mnode; Atype : Iir) return O_Enode is Type_Info : constant Type_Info_Acc := Get_Info (Atype); Index_List : constant Iir_Flist := Get_Index_Subtype_List (Atype); Nbr_Dim : constant Natural := Get_Nbr_Elements (Index_List); Dim_Length : O_Enode; Res : O_Enode; Bounds_Stable : Mnode; begin if Type_Info.Type_Locally_Constrained then return New_Lit (Get_Thin_Array_Length (Atype)); end if; if Nbr_Dim > 1 then Bounds_Stable := Stabilize (Bounds); else Bounds_Stable := Bounds; end if; for Dim in 1 .. Nbr_Dim loop Dim_Length := M2E (Range_To_Length (Bounds_To_Range (Bounds_Stable, Atype, Dim))); if Dim = 1 then Res := Dim_Length; else Res := New_Dyadic_Op (ON_Mul_Ov, Res, Dim_Length); end if; end loop; return Res; end Get_Bounds_Length; function Get_Array_Type_Length (Atype : Iir) return O_Enode is Type_Info : constant Type_Info_Acc := Get_Info (Atype); begin if Type_Info.Type_Locally_Constrained then return New_Lit (Get_Thin_Array_Length (Atype)); else return Get_Bounds_Length (Get_Composite_Type_Bounds (Atype), Atype); end if; end Get_Array_Type_Length; function Get_Array_Length (Arr : Mnode; Atype : Iir) return O_Enode is Type_Info : constant Type_Info_Acc := Get_Info (Atype); begin if Type_Info.Type_Locally_Constrained then return New_Lit (Get_Thin_Array_Length (Atype)); else return Get_Bounds_Length (Get_Composite_Bounds (Arr), Atype); end if; end Get_Array_Length; -- Get the base part of a dope vector. function Get_Unbounded_Base (Arr : Mnode) return Mnode is Info : constant Type_Info_Acc := Get_Type_Info (Arr); Kind : constant Object_Kind_Type := Get_Object_Kind (Arr); begin pragma Assert (Info.Type_Mode in Type_Mode_Unbounded); return Lp2M (New_Selected_Element (M2Lv (Arr), Info.B.Base_Field (Kind)), Info, Kind, Info.B.Base_Type (Kind), Info.B.Base_Ptr_Type (Kind)); end Get_Unbounded_Base; function Get_Composite_Base (Obj : Mnode) return Mnode is Info : constant Type_Info_Acc := Get_Type_Info (Obj); begin case Info.Type_Mode is when Type_Mode_Unbounded_Array | Type_Mode_Unbounded_Record => return Get_Unbounded_Base (Obj); when Type_Mode_Bounded_Arrays | Type_Mode_Bounded_Records => return Obj; when others => raise Internal_Error; end case; end Get_Composite_Base; function Get_Composite_Unbounded_Base (Obj : Mnode) return Mnode is Info : constant Type_Info_Acc := Get_Type_Info (Obj); begin case Info.Type_Mode is when Type_Mode_Unbounded_Array | Type_Mode_Unbounded_Record => return Get_Unbounded_Base (Obj); when Type_Mode_Bounded_Arrays => -- This works in ortho as an access to unconstrained array is -- also an access to a constrained array. return Obj; when Type_Mode_Bounded_Records => return Obj; when others => raise Internal_Error; end case; end Get_Composite_Unbounded_Base; function Create_Maybe_Fat_Array_Element (Arr : Mnode; Arr_Type : Iir) return Mnode is El_Type : constant Iir := Get_Element_Subtype (Arr_Type); El_Info : constant Type_Info_Acc := Get_Info (El_Type); El_Unbounded : constant Boolean := Is_Unbounded_Type (El_Info); Kind : constant Object_Kind_Type := Get_Object_Kind (Arr); Var_El : Mnode; begin if El_Unbounded then Var_El := Create_Temp (El_Info, Kind); New_Assign_Stmt (M2Lp (Chap3.Get_Composite_Bounds (Var_El)), M2Addr (Chap3.Array_Bounds_To_Element_Bounds (Chap3.Get_Composite_Bounds (Arr), Arr_Type))); return Var_El; else return Mnode_Null; end if; end Create_Maybe_Fat_Array_Element; function Assign_Maybe_Fat_Array_Element (Var : Mnode; El : Mnode) return Mnode is begin if Var = Mnode_Null then return El; else New_Assign_Stmt (M2Lp (Chap3.Get_Composite_Base (Var)), M2Addr (El)); return Var; end if; end Assign_Maybe_Fat_Array_Element; function Get_Bounds_Acc_Base (Acc : O_Enode; D_Type : Iir) return O_Enode is D_Info : constant Type_Info_Acc := Get_Info (D_Type); begin return Add_Pointer (Acc, New_Lit (New_Sizeof (D_Info.B.Bounds_Type, Ghdl_Index_Type)), D_Info.B.Base_Ptr_Type (Mode_Value)); end Get_Bounds_Acc_Base; function Reindex_Complex_Array (Base : Mnode; Atype : Iir; Index : O_Enode; Res_Info : Type_Info_Acc) return Mnode is Kind : constant Object_Kind_Type := Get_Object_Kind (Base); El_Type : constant Iir := Get_Element_Subtype (Atype); Stride : O_Enode; Res : O_Enode; begin Stride := Get_Subtype_Size (El_Type, Mnode_Null, Kind); Res := Add_Pointer (M2E (Base), New_Dyadic_Op (ON_Mul_Ov, Stride, Index), Res_Info.Ortho_Ptr_Type (Kind)); return E2M (Res, Res_Info, Kind); end Reindex_Complex_Array; function Index_Base (Base : Mnode; Atype : Iir; Index : O_Enode; Stride : O_Enode := O_Enode_Null) return Mnode is Arr_Tinfo : constant Type_Info_Acc := Get_Type_Info (Base); Kind : constant Object_Kind_Type := Get_Object_Kind (Base); El_Type : constant Iir := Get_Element_Subtype (Atype); El_Tinfo : constant Type_Info_Acc := Get_Info (El_Type); begin if Arr_Tinfo.Type_Mode = Type_Mode_Static_Array or else Is_Static_Type (Get_Info (Get_Element_Subtype (Get_Base_Type (Atype)))) then -- If the array is fully constrained it can be indexed. return Lv2M (New_Indexed_Element (M2Lv (Base), Index), El_Tinfo, Kind); elsif Is_Unbounded_Type (El_Tinfo) then return E2M (Add_Pointer (M2E (Base), New_Dyadic_Op (ON_Mul_Ov, Index, Stride), El_Tinfo.B.Base_Ptr_Type (Kind)), El_Tinfo, Kind, El_Tinfo.B.Base_Type (Kind), El_Tinfo.B.Base_Ptr_Type (Kind)); end if; -- If the element type of the base type is static, the array -- can be directly indexed. return Reindex_Complex_Array (Base, Atype, Index, El_Tinfo); end Index_Base; function Convert_Array_Base (Arr : Mnode) return Mnode is Type_Info : constant Type_Info_Acc := Get_Type_Info (Arr); Mode : constant Object_Kind_Type := Get_Object_Kind (Arr); begin if Type_Info.Ortho_Ptr_Type (Mode) /= Type_Info.B.Base_Ptr_Type (Mode) then return E2M (New_Convert_Ov (M2E (Arr), Type_Info.B.Base_Ptr_Type (Mode)), Type_Info, Mode); else return Arr; end if; end Convert_Array_Base; function Index_Array (Arr : Mnode; Atype : Iir; Index : O_Enode) return Mnode is El_Type : constant Iir := Get_Element_Subtype (Atype); El_Tinfo : constant Type_Info_Acc := Get_Info (El_Type); Kind : constant Object_Kind_Type := Get_Object_Kind (Arr); Base : Mnode; Stride : O_Enode; begin Base := Get_Composite_Base (Arr); -- For indexing, we need to consider the size of elements. if Is_Unbounded_Type (El_Tinfo) then Stride := New_Value (Array_Bounds_To_Element_Size (Get_Composite_Bounds (Arr), Atype, Kind)); else Stride := O_Enode_Null; end if; return Index_Base (Base, Atype, Index, Stride); end Index_Array; function Slice_Base (Base : Mnode; Atype : Iir; Index : O_Enode; Stride : O_Enode) return Mnode is T_Info : constant Type_Info_Acc := Get_Info (Atype); El_Type : constant Iir := Get_Element_Subtype_For_Info (Atype); El_Tinfo : constant Type_Info_Acc := Get_Info (El_Type); Kind : constant Object_Kind_Type := Get_Object_Kind (Base); begin if not Is_Static_Type (El_Tinfo) then pragma Assert (T_Info.Type_Mode /= Type_Mode_Static_Array); if Stride /= O_Enode_Null then return E2M (Add_Pointer (M2E (Base), New_Dyadic_Op (ON_Mul_Ov, Stride, Index), T_Info.Ortho_Ptr_Type (Kind)), T_Info, Kind); else return Reindex_Complex_Array (Base, Atype, Index, T_Info); end if; end if; if T_Info.Type_Mode = Type_Mode_Static_Array then -- Static array. Use the type of the array. return Lv2M (New_Slice (M2Lv (Base), T_Info.Ortho_Type (Kind), Index), T_Info, Kind, T_Info.Ortho_Type (Kind), T_Info.Ortho_Ptr_Type (Kind)); else -- The base is sliced, so use the ortho type of the base. return Lv2M (New_Slice (M2Lv (Base), T_Info.B.Base_Type (Kind), Index), T_Info, Kind, T_Info.B.Base_Type (Kind), T_Info.B.Base_Ptr_Type (Kind)); end if; end Slice_Base; procedure Allocate_Unbounded_Composite_Base (Alloc_Kind : Allocation_Kind; Res : Mnode; Arr_Type : Iir) is Dinfo : constant Type_Info_Acc := Get_Info (Get_Base_Type (Arr_Type)); Kind : constant Object_Kind_Type := Get_Object_Kind (Res); Length : O_Enode; begin -- Compute array size. Length := Get_Object_Size (Res, Arr_Type); -- Allocate the storage for the elements. New_Assign_Stmt (M2Lp (Chap3.Get_Composite_Base (Res)), Gen_Alloc (Alloc_Kind, Length, Dinfo.B.Base_Ptr_Type (Kind))); end Allocate_Unbounded_Composite_Base; procedure Allocate_Unbounded_Composite_Bounds (Alloc_Kind : Allocation_Kind; Res : Mnode; Obj_Type : Iir) is Tinfo : constant Type_Info_Acc := Get_Info (Obj_Type); begin pragma Assert (Tinfo.Type_Mode in Type_Mode_Unbounded); -- Allocate memory for bounds. New_Assign_Stmt (M2Lp (Chap3.Get_Composite_Bounds (Res)), Gen_Alloc (Alloc_Kind, New_Lit (New_Sizeof (Tinfo.B.Bounds_Type, Ghdl_Index_Type)), Tinfo.B.Bounds_Ptr_Type)); end Allocate_Unbounded_Composite_Bounds; -- For aliases of a slice. procedure Translate_Array_Subtype (Arr_Type : Iir) is begin Translate_Subtype_Definition (Arr_Type, False); Create_Composite_Subtype_Layout_Var (Arr_Type, False); end Translate_Array_Subtype; procedure Elab_Array_Subtype (Arr_Type : Iir) is begin Chap3.Elab_Composite_Subtype_Layout (Arr_Type); end Elab_Array_Subtype; procedure Create_Composite_Subtype (Sub_Type : Iir; Elab : Boolean := True) is Mark : Id_Mark_Type; begin Push_Identifier_Prefix_Uniq (Mark); if Get_Info (Sub_Type) = null then -- Minimal subtype creation. Translate_Subtype_Definition (Sub_Type, False); end if; -- Force creation of variables. Chap3.Create_Composite_Subtype_Layout_Var (Sub_Type, Elab); Pop_Identifier_Prefix (Mark); end Create_Composite_Subtype; -- Copy SRC to DEST. -- Both have the same type, OTYPE. procedure Translate_Object_Copy (Dest : Mnode; Src : Mnode; Obj_Type : Iir) is Info : constant Type_Info_Acc := Get_Info (Obj_Type); D : Mnode; begin case Info.Type_Mode is when Type_Mode_Scalar | Type_Mode_Acc | Type_Mode_Bounds_Acc | Type_Mode_File => -- Scalar or thin pointer. New_Assign_Stmt (M2Lv (Dest), M2E (Src)); when Type_Mode_Unbounded_Array | Type_Mode_Unbounded_Record => -- a fat array. D := Stabilize (Dest); Gen_Memcpy (M2Addr (Get_Composite_Base (D)), M2Addr (Get_Composite_Base (Src)), Get_Object_Size (D, Obj_Type)); when Type_Mode_Bounded_Arrays | Type_Mode_Bounded_Records => D := Stabilize (Dest); Gen_Memcpy (M2Addr (D), M2Addr (Src), Get_Object_Size (D, Obj_Type)); when Type_Mode_Unknown | Type_Mode_Protected => raise Internal_Error; end case; end Translate_Object_Copy; function Get_Subtype_Size (Atype : Iir; Bounds : Mnode; Kind : Object_Kind_Type) return O_Enode is Type_Info : constant Type_Info_Acc := Get_Info (Atype); begin case Type_Info.Type_Mode is when Type_Mode_Non_Composite | Type_Mode_Static_Array | Type_Mode_Static_Record => return New_Lit (New_Sizeof (Type_Info.Ortho_Type (Kind), Ghdl_Index_Type)); when Type_Mode_Complex_Array | Type_Mode_Complex_Record => -- The length is pre-computed for a complex bounded type. return New_Value (Layout_To_Size (Get_Composite_Type_Layout (Type_Info), Kind)); when Type_Mode_Unbounded_Array => declare El_Type : constant Iir := Get_Element_Subtype (Atype); El_Tinfo : constant Type_Info_Acc := Get_Info (El_Type); El_Sz : O_Enode; Bounds1 : Mnode; begin if El_Tinfo.Type_Mode in Type_Mode_Unbounded then Bounds1 := Stabilize (Bounds); El_Sz := New_Value (Layout_To_Size (Array_Bounds_To_Element_Layout (Bounds1, Atype), Kind)); else Bounds1 := Bounds; El_Sz := Get_Subtype_Size (El_Type, Mnode_Null, Kind); end if; return New_Dyadic_Op (ON_Mul_Ov, Chap3.Get_Bounds_Length (Bounds1, Atype), El_Sz); end; when Type_Mode_Unbounded_Record => return New_Value (Sizes_To_Size (Layout_To_Sizes (Bounds), Kind)); when others => raise Internal_Error; end case; end Get_Subtype_Size; function Get_Object_Size (Obj : Mnode; Obj_Type : Iir) return O_Enode is Type_Info : constant Type_Info_Acc := Get_Type_Info (Obj); Kind : constant Object_Kind_Type := Get_Object_Kind (Obj); begin if Type_Info.Type_Mode in Type_Mode_Unbounded then return Get_Subtype_Size (Obj_Type, Get_Composite_Bounds (Obj), Kind); else return Get_Subtype_Size (Obj_Type, Mnode_Null, Kind); end if; end Get_Object_Size; procedure Copy_Bounds (Dest : O_Enode; Src : O_Enode; Obj_Type : Iir) is Tinfo : constant Type_Info_Acc := Get_Info (Obj_Type); begin Gen_Memcpy (Dest, Src, New_Lit (New_Sizeof (Tinfo.B.Bounds_Type, Ghdl_Index_Type))); end Copy_Bounds; procedure Copy_Bounds (Dest : Mnode; Src : Mnode; Obj_Type : Iir) is begin Copy_Bounds (M2Addr (Dest), M2Addr (Src), Obj_Type); end Copy_Bounds; procedure Translate_Object_Allocation (Res : in out Mnode; Alloc_Kind : Allocation_Kind; Obj_Type : Iir; Bounds : Mnode) is Tinfo : constant Type_Info_Acc := Get_Info (Obj_Type); Kind : constant Object_Kind_Type := Get_Object_Kind (Res); begin if Tinfo.Type_Mode in Type_Mode_Unbounded then -- Allocate bounds and copy. Allocate_Unbounded_Composite_Bounds (Alloc_Kind, Res, Obj_Type); Copy_Bounds (Chap3.Get_Composite_Bounds (Res), Bounds, Obj_Type); -- Allocate base. Allocate_Unbounded_Composite_Base (Alloc_Kind, Res, Obj_Type); else New_Assign_Stmt (M2Lp (Res), Gen_Alloc (Alloc_Kind, Chap3.Get_Object_Size (T2M (Obj_Type, Kind), Obj_Type), Tinfo.Ortho_Ptr_Type (Kind))); end if; end Translate_Object_Allocation; procedure Gen_Deallocate (Obj : O_Enode) is Assocs : O_Assoc_List; begin Start_Association (Assocs, Ghdl_Deallocate); New_Association (Assocs, New_Convert_Ov (Obj, Ghdl_Ptr_Type)); New_Procedure_Call (Assocs); end Gen_Deallocate; -- Performs deallocation of PARAM (the parameter of a deallocate call). procedure Translate_Object_Deallocation (Param : Iir) is Param_Type : constant Iir := Get_Type (Param); Info : constant Type_Info_Acc := Get_Info (Param_Type); Val : Mnode; begin -- Compute parameter Val := Chap6.Translate_Name (Param, Mode_Value); Stabilize (Val); -- Call deallocator. Gen_Deallocate (New_Value (M2Lv (Val))); -- Set the value to null. New_Assign_Stmt (M2Lv (Val), New_Lit (New_Null_Access (Info.Ortho_Type (Mode_Value)))); end Translate_Object_Deallocation; function Not_In_Range (Value : O_Dnode; Atype : Iir) return O_Enode is Constr : constant Iir := Get_Range_Constraint (Atype); Info : constant Type_Info_Acc := Get_Info (Atype); function Gen_Compare (Low : O_Enode; Hi : O_Enode) return O_Enode is L, H : O_Enode; begin if not Info.S.Nocheck_Low then L := New_Compare_Op (ON_Lt, New_Obj_Value (Value), Low, Ghdl_Bool_Type); end if; if not Info.S.Nocheck_Hi then H := New_Compare_Op (ON_Gt, New_Obj_Value (Value), Hi, Ghdl_Bool_Type); end if; if Info.S.Nocheck_Hi then if Info.S.Nocheck_Low then -- Should not happen! return New_Lit (Ghdl_Bool_False_Node); else return L; end if; else if Info.S.Nocheck_Low then return H; else return New_Dyadic_Op (ON_Or, L, H); end if; end if; end Gen_Compare; function Gen_Compare_To return O_Enode is begin return Gen_Compare (Chap14.Translate_Left_Type_Attribute (Atype), Chap14.Translate_Right_Type_Attribute (Atype)); end Gen_Compare_To; function Gen_Compare_Downto return O_Enode is begin return Gen_Compare (Chap14.Translate_Right_Type_Attribute (Atype), Chap14.Translate_Left_Type_Attribute (Atype)); end Gen_Compare_Downto; Var_Res : O_Dnode; If_Blk : O_If_Block; begin if Get_Kind (Constr) = Iir_Kind_Range_Expression then -- Constraint is a range expression, therefore, direction is -- known. case Get_Direction (Constr) is when Dir_To => return Gen_Compare_To; when Dir_Downto => return Gen_Compare_Downto; end case; end if; -- Range constraint is not static -- full check (lot's of code ?). Var_Res := Create_Temp (Ghdl_Bool_Type); Start_If_Stmt (If_Blk, New_Compare_Op (ON_Eq, Chap14.Translate_Dir_Type_Attribute (Atype), New_Lit (Ghdl_Dir_To_Node), Ghdl_Bool_Type)); -- To. New_Assign_Stmt (New_Obj (Var_Res), Gen_Compare_To); New_Else_Stmt (If_Blk); -- Downto New_Assign_Stmt (New_Obj (Var_Res), Gen_Compare_Downto); Finish_If_Stmt (If_Blk); return New_Obj_Value (Var_Res); end Not_In_Range; function Need_Range_Check (Expr : Iir; Atype : Iir) return Boolean is Info : constant Type_Info_Acc := Get_Info (Atype); begin if Info.S.Nocheck_Low and Info.S.Nocheck_Hi then return False; end if; if Expr /= Null_Iir and then Get_Type (Expr) = Atype then return False; end if; return True; end Need_Range_Check; procedure Check_Range (Value : O_Dnode; Expr : Iir; Atype : Iir; Loc : Iir) is If_Blk : O_If_Block; begin if not Need_Range_Check (Expr, Atype) then return; end if; if Expr /= Null_Iir and then Get_Expr_Staticness (Expr) = Locally and then Get_Type_Staticness (Atype) = Locally then if not Eval_Is_In_Bound (Eval_Static_Expr (Expr), Atype) then Chap6.Gen_Bound_Error (Loc); end if; else Open_Temp; Start_If_Stmt (If_Blk, Not_In_Range (Value, Atype)); Chap6.Gen_Bound_Error (Loc); Finish_If_Stmt (If_Blk); Close_Temp; end if; end Check_Range; function Insert_Scalar_Check (Value : O_Enode; Expr : Iir; Atype : Iir; Loc : Iir) return O_Enode is Var : O_Dnode; begin Var := Create_Temp_Init (Get_Ortho_Type (Get_Base_Type (Atype), Mode_Value), Value); Check_Range (Var, Expr, Atype, Loc); return New_Obj_Value (Var); end Insert_Scalar_Check; function Maybe_Insert_Scalar_Check (Value : O_Enode; Expr : Iir; Atype : Iir) return O_Enode is Expr_Type : constant Iir := Get_Type (Expr); begin -- pragma Assert (Base_Type = Get_Base_Type (Atype)); if Get_Kind (Expr_Type) in Iir_Kinds_Scalar_Type_And_Subtype_Definition and then Need_Range_Check (Expr, Atype) then return Insert_Scalar_Check (Value, Expr, Atype, Expr); else return Value; end if; end Maybe_Insert_Scalar_Check; function Locally_Array_Match (L_Type, R_Type : Iir) return Tri_State_Type is L_Indexes : constant Iir_Flist := Get_Index_Subtype_List (L_Type); R_Indexes : constant Iir_Flist := Get_Index_Subtype_List (R_Type); L_El : Iir; R_El : Iir; begin for I in Flist_First .. Flist_Last (L_Indexes) loop L_El := Get_Index_Type (L_Indexes, I); R_El := Get_Index_Type (R_Indexes, I); if Get_Type_Staticness (L_El) /= Locally or else Get_Type_Staticness (R_El) /= Locally then return Unknown; end if; if Eval_Discrete_Type_Length (L_El) /= Eval_Discrete_Type_Length (R_El) then return False; end if; end loop; return Locally_Types_Match (Get_Element_Subtype (L_Type), Get_Element_Subtype (R_Type)); end Locally_Array_Match; function Locally_Record_Match (L_Type : Iir; R_Type : Iir) return Tri_State_Type is L_List : constant Iir_Flist := Get_Elements_Declaration_List (L_Type); R_List : constant Iir_Flist := Get_Elements_Declaration_List (R_Type); Res : Tri_State_Type; begin Res := True; for I in Flist_First .. Flist_Last (L_List) loop case Locally_Types_Match (Get_Type (Get_Nth_Element (L_List, I)), Get_Type (Get_Nth_Element (R_List, I))) is when False => return False; when True => null; when Unknown => Res := Unknown; end case; end loop; return Res; end Locally_Record_Match; -- Return True IFF locally static types L_TYPE and R_TYPE matches. function Locally_Types_Match (L_Type : Iir; R_Type : Iir) return Tri_State_Type is begin if L_Type = R_Type then return True; end if; case Get_Kind (L_Type) is when Iir_Kind_Array_Subtype_Definition => return Locally_Array_Match (L_Type, R_Type); when Iir_Kind_Record_Subtype_Definition | Iir_Kind_Record_Type_Definition => return Locally_Record_Match (L_Type, R_Type); when Iir_Kinds_Scalar_Type_And_Subtype_Definition => return True; when Iir_Kind_Access_Type_Definition | Iir_Kind_Access_Subtype_Definition => return True; when others => Error_Kind ("locally_types_match", L_Type); end case; end Locally_Types_Match; function Types_Match (L_Type : Iir; R_Type : Iir) return Tri_State_Type is begin if Get_Kind (L_Type) not in Iir_Kinds_Composite_Type_Definition then return True; end if; if Get_Constraint_State (L_Type) /= Fully_Constrained or else Get_Constraint_State (R_Type) /= Fully_Constrained then -- If one of the type is not fully constrained, the check is dynamic. return Unknown; end if; if L_Type = R_Type then -- If the type is the same, they match (they are constrained). return True; end if; -- We cannot use type staticness, as a record may not be locally static -- because it has one scalar element with non-locally static bounds. return Locally_Types_Match (L_Type, R_Type); end Types_Match; function Check_Match_Cond (L_Type : Iir; L_Bounds : Mnode; R_Type : Iir; R_Bounds : Mnode) return O_Enode is begin case Iir_Kinds_Composite_Type_Definition (Get_Kind (L_Type)) is when Iir_Kinds_Array_Type_Definition => -- Check length match. declare Index_List : constant Iir_Flist := Get_Index_Subtype_List (L_Type); Nbr_Dim : constant Natural := Get_Nbr_Elements (Index_List); L_El : constant Iir := Get_Element_Subtype (L_Type); R_El : constant Iir := Get_Element_Subtype (R_Type); El_Match : Tri_State_Type; Cond : O_Enode; Sub_Cond : O_Enode; L_Bounds1 : Mnode; R_Bounds1 : Mnode; begin -- FIXME: stabilize. El_Match := Types_Match (L_El, R_El); if El_Match = Unknown or Nbr_Dim > 1 then L_Bounds1 := Stabilize (L_Bounds); R_Bounds1 := Stabilize (R_Bounds); else L_Bounds1 := L_Bounds; R_Bounds1 := R_Bounds; end if; for I in 1 .. Nbr_Dim loop Sub_Cond := New_Compare_Op (ON_Neq, M2E (Range_To_Length (Bounds_To_Range (L_Bounds1, L_Type, I))), M2E (Range_To_Length (Bounds_To_Range (R_Bounds1, R_Type, I))), Ghdl_Bool_Type); if I = 1 then Cond := Sub_Cond; else Cond := New_Dyadic_Op (ON_Or, Cond, Sub_Cond); end if; end loop; if El_Match = Unknown then Sub_Cond := Check_Match_Cond (L_El, Array_Bounds_To_Element_Bounds (L_Bounds1, L_Type), R_El, Array_Bounds_To_Element_Bounds (R_Bounds1, R_Type)); Cond := New_Dyadic_Op (ON_Or, Cond, Sub_Cond); end if; return Cond; end; when Iir_Kind_Record_Type_Definition | Iir_Kind_Record_Subtype_Definition => declare L_El_List : constant Iir_Flist := Get_Elements_Declaration_List (L_Type); R_El_List : constant Iir_Flist := Get_Elements_Declaration_List (R_Type); Cond : O_Enode; Sub_Cond : O_Enode; L_Bounds1 : Mnode; R_Bounds1 : Mnode; begin L_Bounds1 := Stabilize (L_Bounds); R_Bounds1 := Stabilize (R_Bounds); Cond := O_Enode_Null; for I in Flist_First .. Flist_Last (L_El_List) loop declare L_El : constant Iir := Get_Nth_Element (L_El_List, I); R_El : constant Iir := Get_Nth_Element (R_El_List, I); L_El_Type : constant Iir := Get_Type (L_El); R_El_Type : constant Iir := Get_Type (R_El); begin if Types_Match (L_El_Type, R_El_Type) = Unknown then Sub_Cond := Check_Match_Cond (L_El_Type, Record_Bounds_To_Element_Bounds (L_Bounds1, L_El), R_El_Type, Record_Bounds_To_Element_Bounds (R_Bounds1, R_El)); if Cond = O_Enode_Null then Cond := Sub_Cond; else Cond := New_Dyadic_Op (ON_Or, Cond, Sub_Cond); end if; end if; end; end loop; pragma Assert (Cond /= O_Enode_Null); return Cond; end; end case; end Check_Match_Cond; procedure Check_Composite_Match (L_Type : Iir; L_Node : Mnode; R_Type : Iir; R_Node : Mnode; Loc : Iir) is Res : O_Enode; begin case Types_Match (L_Type, R_Type) is when True => return; when False => -- FIXME: emit a warning ? Chap6.Gen_Bound_Error (Loc); return; when Unknown => Res := Check_Match_Cond (L_Type, Get_Composite_Bounds (L_Node), R_Type, Get_Composite_Bounds (R_Node)); Chap6.Check_Bound_Error (Res, Loc); end case; end Check_Composite_Match; procedure Create_Range_From_Array_Attribute_And_Length (Array_Attr : Iir; Length : O_Dnode; Res : Mnode) is Attr_Kind : Iir_Kind; Arr_Rng : Mnode; Iinfo : Type_Info_Acc; Dir : O_Enode; Diff : O_Dnode; Left_Bound : Mnode; If_Blk : O_If_Block; If_Blk1 : O_If_Block; begin Open_Temp; Arr_Rng := Chap14.Translate_Array_Attribute_To_Range (Array_Attr); Iinfo := Get_Type_Info (Arr_Rng); Stabilize (Arr_Rng); -- Length. New_Assign_Stmt (M2Lv (Range_To_Length (Res)), New_Obj_Value (Length)); -- Direction. Attr_Kind := Get_Kind (Array_Attr); Dir := M2E (Range_To_Dir (Arr_Rng)); case Attr_Kind is when Iir_Kind_Range_Array_Attribute => New_Assign_Stmt (M2Lv (Range_To_Dir (Res)), Dir); when Iir_Kind_Reverse_Range_Array_Attribute => Start_If_Stmt (If_Blk, New_Compare_Op (ON_Eq, Dir, New_Lit (Ghdl_Dir_To_Node), Ghdl_Bool_Type)); New_Assign_Stmt (M2Lv (Range_To_Dir (Res)), New_Lit (Ghdl_Dir_Downto_Node)); New_Else_Stmt (If_Blk); New_Assign_Stmt (M2Lv (Range_To_Dir (Res)), New_Lit (Ghdl_Dir_To_Node)); Finish_If_Stmt (If_Blk); when others => Error_Kind ("Create_Range_From_Array_Attribute_And_Length", Array_Attr); end case; Start_If_Stmt (If_Blk, New_Compare_Op (ON_Eq, New_Obj_Value (Length), New_Lit (Ghdl_Index_0), Ghdl_Bool_Type)); -- Null range. case Attr_Kind is when Iir_Kind_Range_Array_Attribute => New_Assign_Stmt (M2Lv (Range_To_Left (Res)), M2E (Range_To_Right (Arr_Rng))); New_Assign_Stmt (M2Lv (Range_To_Right (Res)), M2E (Range_To_Left (Arr_Rng))); when Iir_Kind_Reverse_Range_Array_Attribute => New_Assign_Stmt (M2Lv (Range_To_Left (Res)), M2E (Range_To_Left (Arr_Rng))); New_Assign_Stmt (M2Lv (Range_To_Right (Res)), M2E (Range_To_Right (Arr_Rng))); when others => raise Internal_Error; end case; New_Else_Stmt (If_Blk); -- LEFT. case Attr_Kind is when Iir_Kind_Range_Array_Attribute => Left_Bound := Range_To_Left (Arr_Rng); when Iir_Kind_Reverse_Range_Array_Attribute => Left_Bound := Range_To_Right (Arr_Rng); when others => raise Internal_Error; end case; Stabilize (Left_Bound); New_Assign_Stmt (M2Lv (Range_To_Left (Res)), M2E (Left_Bound)); -- RIGHT. Diff := Create_Temp_Init (Iinfo.Ortho_Type (Mode_Value), New_Convert_Ov (New_Dyadic_Op (ON_Sub_Ov, New_Obj_Value (Length), New_Lit (Ghdl_Index_1)), Iinfo.Ortho_Type (Mode_Value))); Start_If_Stmt (If_Blk1, New_Compare_Op (ON_Eq, M2E (Range_To_Dir (Res)), New_Lit (Ghdl_Dir_To_Node), Ghdl_Bool_Type)); New_Assign_Stmt (M2Lv (Range_To_Right (Res)), New_Dyadic_Op (ON_Add_Ov, M2E (Left_Bound), New_Obj_Value (Diff))); New_Else_Stmt (If_Blk1); New_Assign_Stmt (M2Lv (Range_To_Right (Res)), New_Dyadic_Op (ON_Sub_Ov, M2E (Left_Bound), New_Obj_Value (Diff))); Finish_If_Stmt (If_Blk1); -- FIXME: check right bounds is inside bounds. Finish_If_Stmt (If_Blk); Close_Temp; end Create_Range_From_Array_Attribute_And_Length; procedure Create_Range_From_Length (Index_Type : Iir; Length : O_Dnode; Res : Mnode; Loc : Iir) is Iinfo : constant Type_Info_Acc := Get_Info (Index_Type); Range_Constr : constant Iir := Get_Range_Constraint (Index_Type); Op : ON_Op_Kind; Diff : O_Enode; Left_Bound : O_Enode; Var_Right : O_Dnode; If_Blk : O_If_Block; Res_Range : Mnode; begin if Get_Kind (Range_Constr) /= Iir_Kind_Range_Expression then Open_Temp; Res_Range := Stabilize (Res); Create_Range_From_Array_Attribute_And_Length (Range_Constr, Length, Res_Range); Close_Temp; return; end if; Start_Declare_Stmt; Open_Local_Temp; Res_Range := Stabilize (Res); New_Var_Decl (Var_Right, Get_Identifier ("right_bound"), O_Storage_Local, Iinfo.Ortho_Type (Mode_Value)); New_Assign_Stmt (M2Lv (Range_To_Length (Res_Range)), New_Obj_Value (Length)); New_Assign_Stmt (M2Lv (Range_To_Dir (Res_Range)), New_Lit (Chap7.Translate_Static_Range_Dir (Range_Constr))); case Get_Direction (Range_Constr) is when Dir_To => Op := ON_Add_Ov; when Dir_Downto => Op := ON_Sub_Ov; end case; Start_If_Stmt (If_Blk, New_Compare_Op (ON_Eq, New_Obj_Value (Length), New_Lit (Ghdl_Index_0), Ghdl_Bool_Type)); -- Null range. New_Assign_Stmt (M2Lv (Range_To_Left (Res_Range)), Chap7.Translate_Range_Expression_Right (Range_Constr, Index_Type)); New_Assign_Stmt (M2Lv (Range_To_Right (Res_Range)), Chap7.Translate_Range_Expression_Left (Range_Constr, Index_Type)); New_Else_Stmt (If_Blk); New_Assign_Stmt (M2Lv (Range_To_Left (Res_Range)), Chap7.Translate_Range_Expression_Left (Range_Constr, Index_Type)); Left_Bound := Chap7.Translate_Range_Expression_Left (Range_Constr, Index_Type); Diff := New_Convert_Ov (New_Dyadic_Op (ON_Sub_Ov, New_Obj_Value (Length), New_Lit (Ghdl_Index_1)), Iinfo.Ortho_Type (Mode_Value)); New_Assign_Stmt (New_Obj (Var_Right), New_Dyadic_Op (Op, Left_Bound, Diff)); -- Check the right bounds is inside the bounds of the index type. Chap3.Check_Range (Var_Right, Null_Iir, Index_Type, Loc); New_Assign_Stmt (M2Lv (Range_To_Right (Res_Range)), New_Obj_Value (Var_Right)); Finish_If_Stmt (If_Blk); Close_Local_Temp; Finish_Declare_Stmt; end Create_Range_From_Length; end Trans.Chap3;