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-- Nodes recognizer for ieee.math_real.
-- Copyright (C) 2019 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 <gnu.org/licenses>.
with Std_Names; use Std_Names;
with Vhdl.Std_Package;
package body Vhdl.Ieee.Math_Real is
procedure Extract_Declarations (Pkg : Iir_Package_Declaration)
is
Decl : Iir;
Def : Iir_Predefined_Functions;
begin
Math_Real_Pkg := Pkg;
Decl := Get_Declaration_Chain (Pkg);
-- Skip a potential copyright constant.
Decl := Skip_Copyright_Notice (Decl);
-- Skip any declarations but functions.
loop
Decl := Get_Chain (Decl);
exit when Decl = Null_Iir;
case Get_Kind (Decl) is
when Iir_Kind_Function_Declaration =>
Def := Iir_Predefined_None;
case Get_Identifier (Decl) is
when Name_Sign =>
Def := Iir_Predefined_Ieee_Math_Real_Sign;
when Name_Sqrt =>
Def := Iir_Predefined_Ieee_Math_Real_Sqrt;
when Name_Mod =>
Def := Iir_Predefined_Ieee_Math_Real_Mod;
when Name_Ceil =>
Def := Iir_Predefined_Ieee_Math_Real_Ceil;
when Name_Floor =>
Def := Iir_Predefined_Ieee_Math_Real_Floor;
when Name_Round =>
Def := Iir_Predefined_Ieee_Math_Real_Round;
when Name_Log2 =>
Def := Iir_Predefined_Ieee_Math_Real_Log2;
when Name_Log10 =>
Def := Iir_Predefined_Ieee_Math_Real_Log10;
when Name_Sin =>
Def := Iir_Predefined_Ieee_Math_Real_Sin;
when Name_Cos =>
Def := Iir_Predefined_Ieee_Math_Real_Cos;
when Name_Arctan =>
Def := Iir_Predefined_Ieee_Math_Real_Arctan;
when Name_Op_Exp =>
declare
use Vhdl.Std_Package;
Inter : constant Iir :=
Get_Interface_Declaration_Chain (Decl);
Itype : constant Iir := Get_Type (Inter);
begin
if Itype = Integer_Subtype_Definition then
Def := Iir_Predefined_Ieee_Math_Real_Pow_Int_Real;
elsif Itype = Real_Subtype_Definition then
Def := Iir_Predefined_Ieee_Math_Real_Pow_Real_Real;
end if;
end;
when others =>
null;
end case;
Set_Implicit_Definition (Decl, Def);
when Iir_Kind_Constant_Declaration =>
null;
when others =>
null;
end case;
end loop;
end Extract_Declarations;
end Vhdl.Ieee.Math_Real;
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