osprey/be/lno/move.h

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/*

  Copyright (C) 2000, 2001 Silicon Graphics, Inc.  All Rights Reserved.

  This program is free software; you can redistribute it and/or modify it
  under the terms of version 2 of the GNU General Public License as
  published by the Free Software Foundation.

  This program is distributed in the hope that it would be useful, but
  WITHOUT ANY WARRANTY; without even the implied warranty of
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  

  Further, this software is distributed without any warranty that it is
  free of the rightful claim of any third person regarding infringement 
  or the like.  Any license provided herein, whether implied or 
  otherwise, applies only to this software file.  Patent licenses, if 
  any, provided herein do not apply to combinations of this program with 
  other software, or any other product whatsoever.  

  You should have received a copy of the GNU General Public License along
  with this program; if not, write the Free Software Foundation, Inc., 59
  Temple Place - Suite 330, Boston MA 02111-1307, USA.

  Contact information:  Silicon Graphics, Inc., 1600 Amphitheatre Pky,
  Mountain View, CA 94043, or:

  http://www.sgi.com

  For further information regarding this notice, see:

  http://oss.sgi.com/projects/GenInfo/NoticeExplan

*/


// -*-C++-*-

extern void Hoist_Statement(WN* wn_stat, INT hoist_level);
extern INT Hoistable_Statement(WN* wn_stat, DU_MANAGER* du);
extern void Hoist_Statements(WN* wn_outer_loop, DU_MANAGER* du);
extern void Hoist_Necessary_Code_Up(WN* wn_sunk, DU_MANAGER* du); 
extern BOOL Statement_Sinkable_Out_Of_Loop(WN* wn_stat, WN* wn_loop);
extern void Sink_Out_Sandwiched_Statement(WN* wn_stat, WN* wn_sink_loop);
extern BOOL Sandwiched_Code_Sinkable_In(WN* wn_outer_loop,
  WN* wn_sink_loop, DU_MANAGER* du);
extern WN* Sink_Sandwiched_Code_In(WN* wn_outer_loop,
  WN* wn_sink_loop);
extern void SNL_Sink_Out_Sandwiched_Statements(WN* wn_loop, INT nloops, 
  BOOL test_legality, ARRAY_DIRECTED_GRAPH16* dg, DU_MANAGER* du);
extern void Hoist_And_Sink_For_Nested_Doacross(WN* wn_loop,
  ARRAY_DIRECTED_GRAPH16* dg, DU_MANAGER* du);
extern WN* Initial_Hoist_Place(WN* wn_stat);
extern WN* Hoist_Merge(WN* wn1, WN* wn2);
extern WN* Hoistable_Place(WN* wn_stat, DU_MANAGER* du);
extern WN* Find_Sibling_Containing(WN* wn_stat, WN* wn_contained);
extern BOOL Maybe_Assigned_Exp(WN* wn_exp, WN* wn_first, WN* wn_last);

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