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diff --git a/src/ortho/llvm6/ortho_llvm.private.ads b/src/ortho/llvm6/ortho_llvm.private.ads
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+-- 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 System;
+with Interfaces; use Interfaces;
+with Interfaces.C; use Interfaces.C;
+with Ortho_Ident; use Ortho_Ident;
+
+-- Interface to create nodes.
+package Ortho_LLVM is
+ procedure Init (Filename : String; Filename_Length : Natural);
+ pragma Import (C, Init, "ortho_llvm_init");
+
+ type Opaque_Type is null record;
+
+ procedure Set_Optimization_Level (Level : Natural);
+ pragma Import (C, Set_Optimization_Level);
+
+ procedure Set_Dump_LLVM (Flag : Natural);
+ pragma Import (C, Set_Dump_LLVM);
+
+ procedure Set_Verify_LLVM (Flag : Natural);
+ pragma Import (C, Set_Verify_LLVM);
+
+ procedure Set_PIC_Flag (Flag : Natural);
+ pragma Import (C, Set_PIC_Flag);
+
+ procedure Generate_Object (Filename : System.Address);
+ pragma Import (C, Generate_Object);
+ procedure Generate_Assembly (Filename : System.Address);
+ pragma Import (C, Generate_Assembly);
+ procedure Generate_Llvm (Filename : System.Address);
+ pragma Import (C, Generate_Llvm);
+ procedure Generate_Bitcode (Filename : System.Address);
+ pragma Import (C, Generate_Bitcode);
+
+ -- 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;
+
+private
+ pragma Convention (C, O_Storage);
+
+ -- No support for nested subprograms in LLVM.
+ Has_Nested_Subprograms : constant Boolean := False;
+
+ type TypeRef is access Opaque_Type;
+ pragma Convention (C, TypeRef);
+
+ type BasicBlockRef is access Opaque_Type;
+ pragma Convention (C, BasicBlockRef);
+
+ Null_BasicBlockRef : constant BasicBlockRef := null;
+
+ type ValueRef is access Opaque_Type;
+ pragma Convention (C, ValueRef);
+
+ Null_ValueRef : constant ValueRef := null;
+
+ type O_Tnode is access Opaque_Type;
+ pragma Convention (C, O_Tnode);
+
+ O_Tnode_Null : constant O_Tnode := null;
+
+ type O_Inter;
+ type O_Inter_Acc is access O_Inter;
+ type O_Inter is record
+ Ival : ValueRef;
+ Ident : O_Ident;
+ Itype : O_Tnode;
+ Next : O_Inter_Acc;
+ end record;
+ pragma Convention (C, O_Inter);
+
+ type O_Dnode is access Opaque_Type;
+ pragma Convention (C, O_Dnode);
+
+ 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 := null;
+
+ type OF_Kind is (OF_None, OF_Record, OF_Union);
+ pragma Convention (C, OF_Kind);
+
+ type O_Fnode is access Opaque_Type;
+ pragma Convention (C, O_Fnode);
+
+ O_Fnode_Null : constant O_Fnode := 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;
+ -- Note: this record is always passed by reference.
+ pragma Convention (C, O_Cnode);
+
+ 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;
+ pragma Convention (C_Pass_By_Copy, O_Enode);
+
+ 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;
+ -- Note: this record is always passed by reference.
+ pragma Convention (C, O_Lnode);
+
+ O_Lnode_Null : constant O_Lnode := (False, Null_ValueRef, O_Tnode_Null);
+
+ type O_Gnode is record
+ Ref : ValueRef;
+ Ltype : O_Tnode;
+ end record;
+ pragma Convention (C_Pass_By_Copy, O_Gnode);
+
+ O_Gnode_Null : constant O_Gnode := (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;
+ pragma Convention (C, O_Snode);
+
+ 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;
+ pragma Convention (C, O_Inter_List);
+
+ type O_Element;
+ type O_Element_Acc is access O_Element;
+ pragma Convention (C, O_Element_Acc);
+
+ 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;
+ pragma Convention (C, O_Element);
+
+ -- Record and union builder.
+ type O_Element_List is record
+ Kind : OF_Kind;
+
+ -- Number of fields.
+ 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;
+ pragma Convention (C, O_Element_List);
+
+ type ValueRefArray_Acc is access Opaque_Type;
+ pragma Convention (C, ValueRefArray_Acc);
+
+ 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;
+ pragma Convention (C, O_Record_Aggr_List);
+
+ 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;
+ pragma Convention (C, O_Array_Aggr_List);
+
+ type O_Assoc_List is record
+ Subprg : O_Dnode;
+ Idx : unsigned;
+ Vals : ValueRefArray_Acc;
+ end record;
+ pragma Convention (C, O_Assoc_List);
+
+ 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.
+ Choices : O_Choice_Array_Acc;
+ end record;
+ pragma Convention (C, O_Case_Block);
+
+ 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;
+ pragma Convention (C, O_If_Block);
+
+ -- function Get_LLVM_Type (Atype : O_Tnode) return TypeRef;
+
+ pragma Import (C, New_Dyadic_Op);
+ pragma Import (C, New_Monadic_Op);
+ pragma Import (C, New_Compare_Op);
+
+ pragma Import (C, New_Convert_Ov);
+ pragma Import (C, New_Alloca);
+
+ pragma Import (C, New_Signed_Literal);
+ pragma Import (C, New_Unsigned_Literal);
+ pragma Import (C, New_Float_Literal);
+ pragma Import (C, New_Null_Access);
+
+ pragma Import (C, Start_Record_Type);
+ pragma Import (C, New_Record_Field);
+ pragma Import (C, Finish_Record_Type);
+ pragma Import (C, New_Uncomplete_Record_Type);
+ pragma Import (C, Start_Uncomplete_Record_Type);
+
+ pragma Import (C, Start_Union_Type);
+ pragma Import (C, New_Union_Field);
+ pragma Import (C, Finish_Union_Type);
+
+ pragma Import (C, New_Unsigned_Type);
+ pragma Import (C, New_Signed_Type);
+ pragma Import (C, New_Float_Type);
+
+ pragma Import (C, New_Access_Type);
+ pragma Import (C, Finish_Access_Type);
+
+ pragma Import (C, New_Array_Type);
+ pragma Import (C, New_Constrained_Array_Type);
+
+ pragma Import (C, New_Boolean_Type);
+ pragma Import (C, Start_Enum_Type);
+ pragma Import (C, New_Enum_Literal);
+ pragma Import (C, Finish_Enum_Type);
+
+ pragma Import (C, Start_Record_Aggr);
+ pragma Import (C, New_Record_Aggr_El);
+ pragma Import (C, Finish_Record_Aggr);
+ pragma Import (C, Start_Array_Aggr);
+ pragma Import (C, New_Array_Aggr_El);
+ pragma Import (C, Finish_Array_Aggr);
+ pragma Import (C, New_Union_Aggr);
+ pragma Import (C, New_Default_Value);
+
+ pragma Import (C, New_Indexed_Element);
+ pragma Import (C, New_Slice);
+ pragma Import (C, New_Selected_Element);
+ pragma Import (C, New_Access_Element);
+
+ pragma Import (C, New_Sizeof);
+ pragma Import (C, New_Alignof);
+ pragma Import (C, New_Offsetof);
+
+ pragma Import (C, New_Address);
+ pragma Import (C, New_Global_Address);
+ pragma Import (C, New_Unchecked_Address);
+ pragma Import (C, New_Global_Unchecked_Address);
+ pragma Import (C, New_Subprogram_Address);
+
+ pragma Import (C, New_Lit);
+ pragma Import (C, New_Obj);
+ pragma Import (C, New_Obj_Value);
+ pragma Import (C, New_Global);
+ pragma Import (C, New_Global_Selected_Element);
+ pragma Import (C, New_Value);
+
+ pragma Import (C, New_Type_Decl);
+ pragma Import (C, New_Debug_Line_Decl);
+ pragma Import (C, New_Const_Decl);
+ pragma Import (C, New_Var_Decl);
+
+ pragma Import (C, Start_Init_Value);
+ pragma Import (C, Finish_Init_Value);
+
+ pragma Import (C, Start_Function_Decl);
+ pragma Import (C, Start_Procedure_Decl);
+ pragma Import (C, New_Interface_Decl);
+ pragma Import (C, Finish_Subprogram_Decl);
+
+ pragma Import (C, Start_Subprogram_Body);
+ pragma Import (C, Finish_Subprogram_Body);
+
+ pragma Import (C, New_Debug_Line_Stmt);
+ pragma Import (C, Start_Declare_Stmt);
+ pragma Import (C, Finish_Declare_Stmt);
+ pragma Import (C, Start_Association);
+ pragma Import (C, New_Association);
+ pragma Import (C, New_Function_Call);
+ pragma Import (C, New_Procedure_Call);
+
+ pragma Import (C, New_Assign_Stmt);
+
+ pragma Import (C, Start_If_Stmt);
+ pragma Import (C, New_Else_Stmt);
+ pragma Import (C, Finish_If_Stmt);
+
+ pragma Import (C, New_Return_Stmt);
+ pragma Import_Procedure (New_Return_Stmt,
+ "new_func_return_stmt", (O_Enode));
+ pragma Import_Procedure (New_Return_Stmt,
+ "new_proc_return_stmt", null);
+
+ pragma Import (C, Start_Loop_Stmt);
+ pragma Import (C, Finish_Loop_Stmt);
+ pragma Import (C, New_Exit_Stmt);
+ pragma Import (C, New_Next_Stmt);
+
+ pragma Import (C, Start_Case_Stmt);
+ pragma Import (C, Start_Choice);
+ pragma Import (C, New_Expr_Choice);
+ pragma Import (C, New_Range_Choice);
+ pragma Import (C, New_Default_Choice);
+ pragma Import (C, Finish_Choice);
+ pragma Import (C, Finish_Case_Stmt);
+end Ortho_LLVM;