| ------------------------------------------------------------------------------ |
| -- -- |
| -- GNAT COMPILER COMPONENTS -- |
| -- -- |
| -- S C I L _ L L -- |
| -- -- |
| -- B o d y -- |
| -- -- |
| -- Copyright (C) 2010-2022, 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 Sinfo.Nodes; use Sinfo.Nodes; |
| 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; |
