132 lines
4.5 KiB
Ada
132 lines
4.5 KiB
Ada
------------------------------------------------------------------------------
|
|
-- --
|
|
-- GNAT COMPILER COMPONENTS --
|
|
-- --
|
|
-- S C I L _ L L --
|
|
-- --
|
|
-- B o d y --
|
|
-- --
|
|
-- Copyright (C) 2010-2020, Free Software Foundation, Inc. --
|
|
-- --
|
|
-- GNAT is free software; you can redistribute it and/or modify it under --
|
|
-- terms of the GNU General Public License as published by the Free Soft- --
|
|
-- ware Foundation; either version 3, or (at your option) any later ver- --
|
|
-- sion. GNAT is distributed in the hope that it will be useful, but WITH- --
|
|
-- OUT 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 distributed with GNAT; see file COPYING3. If not, go to --
|
|
-- http://www.gnu.org/licenses for a complete copy of the license. --
|
|
-- --
|
|
-- GNAT was originally developed by the GNAT team at New York University. --
|
|
-- Extensive contributions were provided by Ada Core Technologies Inc. --
|
|
-- --
|
|
------------------------------------------------------------------------------
|
|
|
|
with Atree; use Atree;
|
|
with Opt; use Opt;
|
|
with Sinfo; use Sinfo;
|
|
with System.HTable; use System.HTable;
|
|
|
|
package body SCIL_LL is
|
|
|
|
procedure Copy_SCIL_Node (Target : Node_Id; Source : Node_Id);
|
|
-- Copy the SCIL field from Source to Target (it is used as the argument
|
|
-- for a call to Set_Reporting_Proc in package atree).
|
|
|
|
type Header_Num is range 1 .. 4096;
|
|
|
|
function Hash (N : Node_Id) return Header_Num;
|
|
-- Hash function for Node_Ids
|
|
|
|
--------------------------
|
|
-- Internal Hash Tables --
|
|
--------------------------
|
|
|
|
package SCIL_Nodes is new Simple_HTable
|
|
(Header_Num => Header_Num,
|
|
Element => Node_Id,
|
|
No_Element => Empty,
|
|
Key => Node_Id,
|
|
Hash => Hash,
|
|
Equal => "=");
|
|
-- This table records the value of attribute SCIL_Node of tree nodes
|
|
|
|
--------------------
|
|
-- Copy_SCIL_Node --
|
|
--------------------
|
|
|
|
procedure Copy_SCIL_Node (Target : Node_Id; Source : Node_Id) is
|
|
begin
|
|
Set_SCIL_Node (Target, Get_SCIL_Node (Source));
|
|
end Copy_SCIL_Node;
|
|
|
|
-------------------
|
|
-- Get_SCIL_Node --
|
|
-------------------
|
|
|
|
function Get_SCIL_Node (N : Node_Id) return Node_Id is
|
|
begin
|
|
if Generate_SCIL
|
|
and then Present (N)
|
|
then
|
|
return SCIL_Nodes.Get (N);
|
|
else
|
|
return Empty;
|
|
end if;
|
|
end Get_SCIL_Node;
|
|
|
|
----------
|
|
-- Hash --
|
|
----------
|
|
|
|
function Hash (N : Node_Id) return Header_Num is
|
|
begin
|
|
return Header_Num (1 + N mod Node_Id (Header_Num'Last));
|
|
end Hash;
|
|
|
|
----------------
|
|
-- Initialize --
|
|
----------------
|
|
|
|
procedure Initialize is
|
|
begin
|
|
SCIL_Nodes.Reset;
|
|
Set_Reporting_Proc (Copy_SCIL_Node'Access);
|
|
end Initialize;
|
|
|
|
-------------------
|
|
-- Set_SCIL_Node --
|
|
-------------------
|
|
|
|
procedure Set_SCIL_Node (N : Node_Id; Value : Node_Id) is
|
|
begin
|
|
pragma Assert (Generate_SCIL);
|
|
|
|
if Present (Value) then
|
|
case Nkind (Value) is
|
|
when N_SCIL_Dispatch_Table_Tag_Init =>
|
|
pragma Assert (Nkind (N) = N_Object_Declaration);
|
|
null;
|
|
|
|
when N_SCIL_Dispatching_Call =>
|
|
pragma Assert (Nkind (N) in N_Subprogram_Call);
|
|
null;
|
|
|
|
when N_SCIL_Membership_Test =>
|
|
pragma Assert
|
|
(Nkind (N) in N_Identifier | N_And_Then | N_Or_Else |
|
|
N_Expression_With_Actions | N_Function_Call);
|
|
null;
|
|
|
|
when others =>
|
|
pragma Assert (False);
|
|
raise Program_Error;
|
|
end case;
|
|
end if;
|
|
|
|
SCIL_Nodes.Set (N, Value);
|
|
end Set_SCIL_Node;
|
|
|
|
end SCIL_LL;
|