-- DO NOT MODIFY - this file was generated from: -- ortho_nodes.common.ads and ortho_llvm.private.ads -- -- LLVM back-end for ortho. -- Copyright (C) 2014 Tristan Gingold -- -- GHDL is free software; you can redistribute it and/or modify it under -- the terms of the GNU General Public License as published by the Free -- Software Foundation; either version 2, or (at your option) any later -- version. -- -- GHDL is distributed in the hope that it will be useful, but WITHOUT ANY -- WARRANTY; without even the implied warranty of MERCHANTABILITY or -- FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License -- for more details. -- -- You should have received a copy of the GNU General Public License -- along with GCC; see the file COPYING. If not, write to the Free -- Software Foundation, 59 Temple Place - Suite 330, Boston, MA -- 02111-1307, USA. with Interfaces; use Interfaces; with Interfaces.C; use Interfaces.C; with Ortho_Ident; use Ortho_Ident; with LLVM.Core; use LLVM.Core; with LLVM.TargetMachine; with LLVM.Target; -- Interface to create nodes. package Ortho_LLVM is procedure Init; procedure Finish_Debug; -- LLVM specific: the module. Module : ModuleRef; -- Descriptor for the layout. Target_Data : LLVM.Target.TargetDataRef; Target_Machine : LLVM.TargetMachine.TargetMachineRef; -- Optimization level Optimization : LLVM.TargetMachine.CodeGenOptLevel := LLVM.TargetMachine.CodeGenLevelDefault; -- Set by -g to generate full debug info. Flag_Debug : Boolean := False; -- Set by -g or -glines to generate line debug info. Flag_Debug_Line : Boolean := False; -- Start of common part type O_Enode is private; type O_Cnode is private; type O_Lnode is private; type O_Tnode is private; type O_Snode is private; type O_Dnode is private; type O_Fnode is private; O_Cnode_Null : constant O_Cnode; O_Dnode_Null : constant O_Dnode; O_Enode_Null : constant O_Enode; O_Fnode_Null : constant O_Fnode; O_Lnode_Null : constant O_Lnode; O_Snode_Null : constant O_Snode; O_Tnode_Null : constant O_Tnode; -- True if the code generated supports nested subprograms. Has_Nested_Subprograms : constant Boolean; ------------------------ -- Type definitions -- ------------------------ type O_Element_List is limited private; -- Build a record type. procedure Start_Record_Type (Elements : out O_Element_List); -- Add a field in the record; not constrained array are prohibited, since -- its size is unlimited. procedure New_Record_Field (Elements : in out O_Element_List; El : out O_Fnode; Ident : O_Ident; Etype : O_Tnode); -- Finish the record type. procedure Finish_Record_Type (Elements : in out O_Element_List; Res : out O_Tnode); -- Build an uncomplete record type: -- First call NEW_UNCOMPLETE_RECORD_TYPE, which returns a record type. -- This type can be declared or used to define access types on it. -- Then, complete (if necessary) the record type, by calling -- START_UNCOMPLETE_RECORD_TYPE, NEW_RECORD_FIELD and FINISH_RECORD_TYPE. procedure New_Uncomplete_Record_Type (Res : out O_Tnode); procedure Start_Uncomplete_Record_Type (Res : O_Tnode; Elements : out O_Element_List); -- Build an union type. procedure Start_Union_Type (Elements : out O_Element_List); procedure New_Union_Field (Elements : in out O_Element_List; El : out O_Fnode; Ident : O_Ident; Etype : O_Tnode); procedure Finish_Union_Type (Elements : in out O_Element_List; Res : out O_Tnode); -- Build an access type. -- DTYPE may be O_tnode_null in order to build an incomplete access type. -- It is completed with finish_access_type. function New_Access_Type (Dtype : O_Tnode) return O_Tnode; procedure Finish_Access_Type (Atype : O_Tnode; Dtype : O_Tnode); -- Build an array type. -- The array is not constrained and unidimensional. function New_Array_Type (El_Type : O_Tnode; Index_Type : O_Tnode) return O_Tnode; -- Build a constrained array type. function New_Constrained_Array_Type (Atype : O_Tnode; Length : O_Cnode) return O_Tnode; -- Build a scalar type; size may be 8, 16, 32 or 64. function New_Unsigned_Type (Size : Natural) return O_Tnode; function New_Signed_Type (Size : Natural) return O_Tnode; -- Build a float type. function New_Float_Type return O_Tnode; -- Build a boolean type. procedure New_Boolean_Type (Res : out O_Tnode; False_Id : O_Ident; False_E : out O_Cnode; True_Id : O_Ident; True_E : out O_Cnode); -- Create an enumeration type O_Enum_List is limited private; -- Elements are declared in order, the first is ordered from 0. procedure Start_Enum_Type (List : out O_Enum_List; Size : Natural); procedure New_Enum_Literal (List : in out O_Enum_List; Ident : O_Ident; Res : out O_Cnode); procedure Finish_Enum_Type (List : in out O_Enum_List; Res : out O_Tnode); ---------------- -- Literals -- ---------------- -- Create a literal from an integer. function New_Signed_Literal (Ltype : O_Tnode; Value : Integer_64) return O_Cnode; function New_Unsigned_Literal (Ltype : O_Tnode; Value : Unsigned_64) return O_Cnode; function New_Float_Literal (Ltype : O_Tnode; Value : IEEE_Float_64) return O_Cnode; -- Create a null access literal. function New_Null_Access (Ltype : O_Tnode) return O_Cnode; -- Build a record/array aggregate. -- The aggregate is constant, and therefore can be only used to initialize -- constant declaration. -- ATYPE must be either a record type or an array subtype. -- Elements must be added in the order, and must be literals or aggregates. type O_Record_Aggr_List is limited private; type O_Array_Aggr_List is limited private; procedure Start_Record_Aggr (List : out O_Record_Aggr_List; Atype : O_Tnode); procedure New_Record_Aggr_El (List : in out O_Record_Aggr_List; Value : O_Cnode); procedure Finish_Record_Aggr (List : in out O_Record_Aggr_List; Res : out O_Cnode); procedure Start_Array_Aggr (List : out O_Array_Aggr_List; Atype : O_Tnode); procedure New_Array_Aggr_El (List : in out O_Array_Aggr_List; Value : O_Cnode); procedure Finish_Array_Aggr (List : in out O_Array_Aggr_List; Res : out O_Cnode); -- Build an union aggregate. function New_Union_Aggr (Atype : O_Tnode; Field : O_Fnode; Value : O_Cnode) return O_Cnode; -- Returns the size in bytes of ATYPE. The result is a literal of -- unsigned type RTYPE -- ATYPE cannot be an unconstrained array type. function New_Sizeof (Atype : O_Tnode; Rtype : O_Tnode) return O_Cnode; -- Returns the alignment in bytes for ATYPE. The result is a literal of -- unsgined type RTYPE. function New_Alignof (Atype : O_Tnode; Rtype : O_Tnode) return O_Cnode; -- Returns the offset of FIELD in its record ATYPE. The result is a -- literal of unsigned type or access type RTYPE. function New_Offsetof (Atype : O_Tnode; Field : O_Fnode; Rtype : O_Tnode) return O_Cnode; -- Get the address of a subprogram. function New_Subprogram_Address (Subprg : O_Dnode; Atype : O_Tnode) return O_Cnode; -- Get the address of LVALUE. -- ATYPE must be a type access whose designated type is the type of LVALUE. -- FIXME: what about arrays. function New_Global_Address (Decl : O_Dnode; Atype : O_Tnode) return O_Cnode; -- Same as New_Address but without any restriction. function New_Global_Unchecked_Address (Decl : O_Dnode; Atype : O_Tnode) return O_Cnode; ------------------- -- Expressions -- ------------------- type ON_Op_Kind is ( -- Not an operation; invalid. ON_Nil, -- Dyadic operations. ON_Add_Ov, -- ON_Dyadic_Op_Kind ON_Sub_Ov, -- ON_Dyadic_Op_Kind ON_Mul_Ov, -- ON_Dyadic_Op_Kind ON_Div_Ov, -- ON_Dyadic_Op_Kind ON_Rem_Ov, -- ON_Dyadic_Op_Kind ON_Mod_Ov, -- ON_Dyadic_Op_Kind -- Binary operations. ON_And, -- ON_Dyadic_Op_Kind ON_Or, -- ON_Dyadic_Op_Kind ON_Xor, -- ON_Dyadic_Op_Kind -- Monadic operations. ON_Not, -- ON_Monadic_Op_Kind ON_Neg_Ov, -- ON_Monadic_Op_Kind ON_Abs_Ov, -- ON_Monadic_Op_Kind -- Comparaisons ON_Eq, -- ON_Compare_Op_Kind ON_Neq, -- ON_Compare_Op_Kind ON_Le, -- ON_Compare_Op_Kind ON_Lt, -- ON_Compare_Op_Kind ON_Ge, -- ON_Compare_Op_Kind ON_Gt -- ON_Compare_Op_Kind ); subtype ON_Dyadic_Op_Kind is ON_Op_Kind range ON_Add_Ov .. ON_Xor; subtype ON_Monadic_Op_Kind is ON_Op_Kind range ON_Not .. ON_Abs_Ov; subtype ON_Compare_Op_Kind is ON_Op_Kind range ON_Eq .. ON_Gt; type O_Storage is (O_Storage_External, O_Storage_Public, O_Storage_Private, O_Storage_Local); -- Specifies the storage kind of a declaration. -- O_STORAGE_EXTERNAL: -- The declaration do not either reserve memory nor generate code, and -- is imported either from an other file or from a later place in the -- current file. -- O_STORAGE_PUBLIC, O_STORAGE_PRIVATE: -- The declaration reserves memory or generates code. -- With O_STORAGE_PUBLIC, the declaration is exported outside of the -- file while with O_STORAGE_PRIVATE, the declaration is local to the -- file. Type_Error : exception; Syntax_Error : exception; -- Create a value from a literal. function New_Lit (Lit : O_Cnode) return O_Enode; -- Create a dyadic operation. -- Left and right nodes must have the same type. -- Binary operation is allowed only on boolean types. -- The result is of the type of the operands. function New_Dyadic_Op (Kind : ON_Dyadic_Op_Kind; Left, Right : O_Enode) return O_Enode; -- Create a monadic operation. -- Result is of the type of operand. function New_Monadic_Op (Kind : ON_Monadic_Op_Kind; Operand : O_Enode) return O_Enode; -- Create a comparaison operator. -- NTYPE is the type of the result and must be a boolean type. function New_Compare_Op (Kind : ON_Compare_Op_Kind; Left, Right : O_Enode; Ntype : O_Tnode) return O_Enode; type O_Inter_List is limited private; type O_Assoc_List is limited private; type O_If_Block is limited private; type O_Case_Block is limited private; -- Get an element of an array. -- INDEX must be of the type of the array index. function New_Indexed_Element (Arr : O_Lnode; Index : O_Enode) return O_Lnode; -- Get a slice of an array; this is equivalent to a conversion between -- an array or an array subtype and an array subtype. -- RES_TYPE must be an array_sub_type whose base type is the same as the -- base type of ARR. -- INDEX must be of the type of the array index. function New_Slice (Arr : O_Lnode; Res_Type : O_Tnode; Index : O_Enode) return O_Lnode; -- Get an element of a record. -- Type of REC must be a record type. function New_Selected_Element (Rec : O_Lnode; El : O_Fnode) return O_Lnode; -- Reference an access. -- Type of ACC must be an access type. function New_Access_Element (Acc : O_Enode) return O_Lnode; -- Do a conversion. -- Allowed conversions are: -- FIXME: to write. function New_Convert_Ov (Val : O_Enode; Rtype : O_Tnode) return O_Enode; -- Get the address of LVALUE. -- ATYPE must be a type access whose designated type is the type of LVALUE. -- FIXME: what about arrays. function New_Address (Lvalue : O_Lnode; Atype : O_Tnode) return O_Enode; -- Same as New_Address but without any restriction. function New_Unchecked_Address (Lvalue : O_Lnode; Atype : O_Tnode) return O_Enode; -- Get the value of an Lvalue. function New_Value (Lvalue : O_Lnode) return O_Enode; function New_Obj_Value (Obj : O_Dnode) return O_Enode; -- Get an lvalue from a declaration. function New_Obj (Obj : O_Dnode) return O_Lnode; -- Return a pointer of type RTPE to SIZE bytes allocated on the stack. function New_Alloca (Rtype : O_Tnode; Size : O_Enode) return O_Enode; -- Declare a type. -- This simply gives a name to a type. procedure New_Type_Decl (Ident : O_Ident; Atype : O_Tnode); --------------------- -- Declarations. -- --------------------- -- Filename of the next declaration. procedure New_Debug_Filename_Decl (Filename : String); -- Line number of the next declaration. procedure New_Debug_Line_Decl (Line : Natural); -- Add a comment in the declarative region. procedure New_Debug_Comment_Decl (Comment : String); -- Declare a constant. -- This simply gives a name to a constant value or aggregate. -- A constant cannot be modified and its storage cannot be local. -- ATYPE must be constrained. procedure New_Const_Decl (Res : out O_Dnode; Ident : O_Ident; Storage : O_Storage; Atype : O_Tnode); -- Set the value of a non-external constant. procedure Start_Const_Value (Const : in out O_Dnode); procedure Finish_Const_Value (Const : in out O_Dnode; Val : O_Cnode); -- Create a variable declaration. -- A variable can be local only inside a function. -- ATYPE must be constrained. procedure New_Var_Decl (Res : out O_Dnode; Ident : O_Ident; Storage : O_Storage; Atype : O_Tnode); -- Start a subprogram declaration. -- Note: nested subprograms are allowed, ie o_storage_local subprograms can -- be declared inside a subprograms. It is not allowed to declare -- o_storage_external subprograms inside a subprograms. -- Return type and interfaces cannot be a composite type. procedure Start_Function_Decl (Interfaces : out O_Inter_List; Ident : O_Ident; Storage : O_Storage; Rtype : O_Tnode); -- For a subprogram without return value. procedure Start_Procedure_Decl (Interfaces : out O_Inter_List; Ident : O_Ident; Storage : O_Storage); -- Add an interface declaration to INTERFACES. procedure New_Interface_Decl (Interfaces : in out O_Inter_List; Res : out O_Dnode; Ident : O_Ident; Atype : O_Tnode); -- Finish the function declaration, get the node and a statement list. procedure Finish_Subprogram_Decl (Interfaces : in out O_Inter_List; Res : out O_Dnode); -- Start a subprogram body. -- Note: the declaration may have an external storage, in this case it -- becomes public. procedure Start_Subprogram_Body (Func : O_Dnode); -- Finish a subprogram body. procedure Finish_Subprogram_Body; ------------------- -- Statements. -- ------------------- -- Add a line number as a statement. procedure New_Debug_Line_Stmt (Line : Natural); -- Add a comment as a statement. procedure New_Debug_Comment_Stmt (Comment : String); -- Start a declarative region. procedure Start_Declare_Stmt; procedure Finish_Declare_Stmt; -- Create a function call or a procedure call. procedure Start_Association (Assocs : out O_Assoc_List; Subprg : O_Dnode); procedure New_Association (Assocs : in out O_Assoc_List; Val : O_Enode); function New_Function_Call (Assocs : O_Assoc_List) return O_Enode; procedure New_Procedure_Call (Assocs : in out O_Assoc_List); -- Assign VALUE to TARGET, type must be the same or compatible. -- FIXME: what about slice assignment? procedure New_Assign_Stmt (Target : O_Lnode; Value : O_Enode); -- Exit from the subprogram and return VALUE. procedure New_Return_Stmt (Value : O_Enode); -- Exit from the subprogram, which doesn't return value. procedure New_Return_Stmt; -- Build an IF statement. procedure Start_If_Stmt (Block : in out O_If_Block; Cond : O_Enode); procedure New_Else_Stmt (Block : in out O_If_Block); procedure Finish_If_Stmt (Block : in out O_If_Block); -- Create a infinite loop statement. procedure Start_Loop_Stmt (Label : out O_Snode); procedure Finish_Loop_Stmt (Label : in out O_Snode); -- Exit from a loop stmt or from a for stmt. procedure New_Exit_Stmt (L : O_Snode); -- Go to the start of a loop stmt or of a for stmt. -- Loops/Fors between L and the current points are exited. procedure New_Next_Stmt (L : O_Snode); -- Case statement. -- VALUE is the selector and must be a discrete type. procedure Start_Case_Stmt (Block : in out O_Case_Block; Value : O_Enode); -- A choice branch is composed of expr, range or default choices. -- A choice branch is enclosed between a Start_Choice and a Finish_Choice. -- The statements are after the finish_choice. procedure Start_Choice (Block : in out O_Case_Block); procedure New_Expr_Choice (Block : in out O_Case_Block; Expr : O_Cnode); procedure New_Range_Choice (Block : in out O_Case_Block; Low, High : O_Cnode); procedure New_Default_Choice (Block : in out O_Case_Block); procedure Finish_Choice (Block : in out O_Case_Block); procedure Finish_Case_Stmt (Block : in out O_Case_Block); -- End of common part private -- No support for nested subprograms in LLVM. Has_Nested_Subprograms : constant Boolean := False; type O_Tnode_Type (<>); type O_Tnode is access O_Tnode_Type; O_Tnode_Null : constant O_Tnode := null; type ON_Type_Kind is (ON_No_Type, ON_Unsigned_Type, ON_Signed_Type, ON_Enum_Type, ON_Boolean_Type, ON_Float_Type, ON_Array_Type, ON_Array_Sub_Type, ON_Incomplete_Record_Type, ON_Record_Type, ON_Union_Type, ON_Incomplete_Access_Type, ON_Access_Type); subtype ON_Scalar_Types is ON_Type_Kind range ON_Unsigned_Type .. ON_Float_Type; subtype ON_Integer_Types is ON_Type_Kind range ON_Unsigned_Type .. ON_Boolean_Type; type O_Tnode_Type (Kind : ON_Type_Kind := ON_No_Type) is record LLVM : TypeRef; Dbg : ValueRef; case Kind is when ON_No_Type => null; when ON_Union_Type => Un_Size : unsigned; Un_Main_Field : TypeRef; when ON_Access_Type | ON_Incomplete_Access_Type => Acc_Type : O_Tnode; when ON_Scalar_Types => Scal_Size : Natural; when ON_Array_Type | ON_Array_Sub_Type => -- Type of the element Arr_El_Type : O_Tnode; when ON_Record_Type | ON_Incomplete_Record_Type => null; end case; end record; type O_Inter; type O_Inter_Acc is access O_Inter; type O_Inter is record Itype : O_Tnode; Ival : ValueRef; Ident : O_Ident; Next : O_Inter_Acc; end record; type On_Decl_Kind is (ON_Type_Decl, ON_Completed_Type_Decl, ON_Const_Decl, ON_Var_Decl, ON_Local_Decl, ON_Interface_Decl, ON_Subprg_Decl, ON_No_Decl); type O_Dnode (Kind : On_Decl_Kind := ON_No_Decl) is record Dtype : O_Tnode; LLVM : ValueRef; case Kind is when ON_Var_Decl | ON_Const_Decl | ON_Local_Decl => null; when ON_Subprg_Decl => Subprg_Id : O_Ident; Nbr_Args : unsigned; Subprg_Inters : O_Inter_Acc; when ON_Interface_Decl => Inter : O_Inter_Acc; when others => null; end case; end record; O_Dnode_Null : constant O_Dnode := (Kind => ON_No_Decl, Dtype => O_Tnode_Null, LLVM => Null_ValueRef); type OF_Kind is (OF_None, OF_Record, OF_Union); type O_Fnode (Kind : OF_Kind := OF_None) is record Ftype : O_Tnode; case Kind is when OF_None => null; when OF_Record => Index : Natural; when OF_Union => Utype : TypeRef; end case; end record; O_Fnode_Null : constant O_Fnode := (Kind => OF_None, Ftype => O_Tnode_Null); type O_Anode_Type; type O_Anode is access O_Anode_Type; type O_Anode_Type is record Next : O_Anode; Formal : O_Dnode; Actual : O_Enode; end record; type O_Cnode is record LLVM : ValueRef; Ctype : O_Tnode; end record; O_Cnode_Null : constant O_Cnode := (LLVM => Null_ValueRef, Ctype => O_Tnode_Null); type O_Enode is record LLVM : ValueRef; Etype : O_Tnode; end record; O_Enode_Null : constant O_Enode := (LLVM => Null_ValueRef, Etype => O_Tnode_Null); type O_Lnode is record -- If True, the LLVM component is the value (used for arguments). -- If False, the LLVM component is the address of the value (used -- for everything else). Direct : Boolean; LLVM : ValueRef; Ltype : O_Tnode; end record; O_Lnode_Null : constant O_Lnode := (False, Null_ValueRef, O_Tnode_Null); type O_Snode is record -- First BB in the loop body. Bb_Entry : BasicBlockRef; -- BB after the loop. Bb_Exit : BasicBlockRef; end record; O_Snode_Null : constant O_Snode := (Null_BasicBlockRef, Null_BasicBlockRef); type O_Inter_List is record Ident : O_Ident; Storage : O_Storage; Res_Type : O_Tnode; Nbr_Inter : Natural; First_Inter, Last_Inter : O_Inter_Acc; end record; type O_Element; type O_Element_Acc is access O_Element; type O_Element is record -- Identifier for the element Ident : O_Ident; -- Type of the element Etype : O_Tnode; -- Next element (in the linked list) Next : O_Element_Acc; end record; -- Record and union builder. type O_Element_List is record Nbr_Elements : Natural; -- For record: the access to the incomplete (but named) type. Rec_Type : O_Tnode; -- For unions: biggest for size and alignment Size : unsigned; Align : Unsigned_32; Align_Type : TypeRef; First_Elem, Last_Elem : O_Element_Acc; end record; type ValueRefArray_Acc is access ValueRefArray; type O_Record_Aggr_List is record -- Current number of elements in Vals. Len : unsigned; -- Value of elements. Vals : ValueRefArray_Acc; -- Type of the aggregate. Atype : O_Tnode; end record; type O_Array_Aggr_List is record -- Current number of elements in Vals. Len : unsigned; -- Value of elements. Vals : ValueRefArray_Acc; El_Type : TypeRef; -- Type of the aggregate. Atype : O_Tnode; end record; type O_Assoc_List is record Subprg : O_Dnode; Idx : unsigned; Vals : ValueRefArray_Acc; end record; type O_Enum_List is record LLVM : TypeRef; Num : Natural; Etype : O_Tnode; end record; type O_Choice_Type is record Low, High : ValueRef; Bb : BasicBlockRef; end record; type O_Choice_Array is array (Natural range <>) of O_Choice_Type; type O_Choice_Array_Acc is access O_Choice_Array; type O_Case_Block is record -- BB before the case. BB_Prev : BasicBlockRef; -- Select expression Value : ValueRef; Vtype : O_Tnode; -- BB after the case statement. BB_Next : BasicBlockRef; -- BB for others BB_Others : BasicBlockRef; -- BB for the current choice BB_Choice : BasicBlockRef; -- List of choices. Nbr_Choices : Natural; Choices : O_Choice_Array_Acc; end record; type O_If_Block is record -- The next basic block. -- After the 'If', this is the BB for the else part. If there is no -- else part, this is the BB for statements after the if. -- After the 'else', this is the BB for statements after the if. Bb : BasicBlockRef; end record; function Get_LLVM_Type (Atype : O_Tnode) return TypeRef; end Ortho_LLVM;