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-- Iir to ortho translator.
-- Copyright (C) 2002 - 2014 Tristan Gingold
--
-- GHDL is free software; you can redistribute it and/or modify it under
-- the terms of the GNU General Public License as published by the Free
-- Software Foundation; either version 2, or (at your option) any later
-- version.
--
-- GHDL is distributed in the hope that it will be useful, but WITHOUT ANY
-- WARRANTY; without even the implied warranty of MERCHANTABILITY or
-- FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
-- for more details.
--
-- You should have received a copy of the GNU General Public License
-- along with GCC; see the file COPYING. If not, write to the Free
-- Software Foundation, 59 Temple Place - Suite 330, Boston, MA
-- 02111-1307, USA.
package Trans.Chap6 is
-- Translate NAME.
function Translate_Name (Name : Iir; Mode : Object_Kind_Type) return Mnode;
-- Translate signal NAME. Return both the signal name SIG and the value
-- name VAL.
procedure Translate_Signal_Name
(Name : Iir; Sig : out Mnode; Val : out Mnode);
-- Translate signal NAME into its node (SIG) and its direct driver
-- node (DRV).
procedure Translate_Direct_Driver
(Name : Iir; Sig : out Mnode; Drv : out Mnode);
-- Translate port NAME to its node (SIG) and its default value (INIT).
procedure Translate_Port_Init
(Name : Iir; Sig : out Mnode; Init : out Mnode);
-- Direct driver of SIG (must be present).
function Get_Signal_Direct_Driver (Sig : Iir) return Mnode;
-- Initial value of PORT (must be present).
function Get_Port_Init_Value (Port : Iir) return Mnode;
-- Get record element EL of PREFIX.
function Translate_Selected_Element
(Prefix : Mnode; El : Iir_Element_Declaration) return Mnode;
-- Get array element at OFFSET of PREFIX. If unbounded, PREFIX must be
-- stabilized.
function Translate_Indexed_Name_By_Offset
(Prefix : Mnode; Prefix_Type : Iir; Offset : O_Dnode) return Mnode;
function Stabilize_If_Unbounded (Val : Mnode) return Mnode;
function Get_Array_Bound_Length (Arr : Mnode; Arr_Type : Iir; Dim : Natural)
return O_Enode;
procedure Gen_Bound_Error (Loc : Iir);
-- Generate code to emit a program error.
Prg_Err_Missing_Return : constant Natural := 1;
Prg_Err_Block_Configured : constant Natural := 2;
pragma Unreferenced (Prg_Err_Block_Configured);
Prg_Err_Dummy_Config : constant Natural := 3;
Prg_Err_No_Choice : constant Natural := 4;
Prg_Err_Bad_Choice : constant Natural := 5;
Prg_Err_Unreach_State : constant Natural := 6;
procedure Gen_Program_Error (Loc : Iir; Code : Natural);
-- Generate code to emit a failure if COND is TRUE, indicating an
-- index violation for dimension DIM of an array. LOC is usually
-- the expression which has computed the index and is used only for
-- its location.
procedure Check_Bound_Error (Cond : O_Enode; Loc : Iir);
-- Get the deepest range_expression of ATYPE.
-- This follows 'range and 'reverse_range.
-- Set IS_REVERSE to true if the range must be reversed.
procedure Get_Deep_Range_Expression
(Atype : Iir; Rng : out Iir; Is_Reverse : out Boolean);
-- Get the offset of INDEX in the range RNG.
-- This checks INDEX belongs to the range.
-- RANGE_TYPE is the subtype of the array index (or the subtype of RNG).
-- For unconstrained ranges, INDEX_EXPR must be NULL_IIR and RANGE_TYPE
-- must be set.
function Translate_Index_To_Offset (Rng : Mnode;
Index : Mnode;
Index_Expr : Iir;
Range_Type : Iir;
Loc : Iir)
return O_Enode;
end Trans.Chap6;
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