Open64: osprey/be/cg/gtn_tn_set.cxx Source File

00001 /*
00002 
00003   Copyright (C) 2000, 2001 Silicon Graphics, Inc.  All Rights Reserved.
00004 
00005   This program is free software; you can redistribute it and/or modify it
00006   under the terms of version 2 of the GNU General Public License as
00007   published by the Free Software Foundation.
00008 
00009   This program is distributed in the hope that it would be useful, but
00010   WITHOUT ANY WARRANTY; without even the implied warranty of
00011   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  
00012 
00013   Further, this software is distributed without any warranty that it is
00014   free of the rightful claim of any third person regarding infringement 
00015   or the like.  Any license provided herein, whether implied or 
00016   otherwise, applies only to this software file.  Patent licenses, if 
00017   any, provided herein do not apply to combinations of this program with 
00018   other software, or any other product whatsoever.  
00019 
00020   You should have received a copy of the GNU General Public License along
00021   with this program; if not, write the Free Software Foundation, Inc., 59
00022   Temple Place - Suite 330, Boston MA 02111-1307, USA.
00023 
00024   Contact information:  Silicon Graphics, Inc., 1600 Amphitheatre Pky,
00025   Mountain View, CA 94043, or:
00026 
00027   http://www.sgi.com
00028 
00029   For further information regarding this notice, see:
00030 
00031   http://oss.sgi.com/projects/GenInfo/NoticeExplan
00032 
00033 */
00034 
00035 
00036 /* =======================================================================
00037  * =======================================================================
00038  *
00039  *  Module: gtn_tn_set.c
00040  *  $Revision: 1.1.1.1 $
00041  *  $Date: 2005/10/21 19:00:00 $
00042  *  $Author: marcel $
00043  *  $Source: /proj/osprey/CVS/open64/osprey1.0/be/cg/gtn_tn_set.cxx,v $
00044  *
00045  *  Revision comments:
00046  *
00047  *  14-Oct-1994 - Initial version
00048  *
00049  *  Description:
00050  *  ============
00051  *
00052  *  Implements the translation from GTN sets to TN sets.
00053  *
00054  * =======================================================================
00055  * =======================================================================
00056  */
00057 
00058 #ifdef USE_PCH
00059 #include "cg_pch.h"
00060 #endif // USE_PCH
00061 #pragma hdrstop
00062 
00063 #include "defs.h"
00064 #include "errors.h"       /* for definition of Is_True() */
00065 #include "mempool.h"
00066 #include "bitset.h"
00067 #include "cgir.h"
00068 #include "tn_set.h"
00069 #include "tn_list.h"
00070 #include "gtn_universe.h"
00071 #include "gtn_set.h"
00072 #include "bb_list.h"
00073 #include "register.h"
00074 #include "bbregs.h"
00075 #include "gtn_tn_set.h"
00076 
00077 
00078 MEM_POOL local_pool;
00079 BOOL     local_pool_initialized = FALSE;
00080 
00081 
00082 /* =======================================================================
00083  *
00084  *  Check_Local_Pool_Initialized
00085  *
00086  *  Check that the local pool is initialized and do so if required.
00087  *
00088  * =======================================================================
00089  */
00090 inline void
00091 Check_Local_Pool_Initialized(void)
00092 {
00093   if ( ! local_pool_initialized ) {
00094     MEM_POOL_Initialize(&local_pool,"GTN_TN_SET_local_pool",FALSE);
00095     local_pool_initialized = TRUE;
00096   }
00097 }
00098 
00099 
00100 /* =======================================================================
00101  *
00102  *  GTN_TN_SET_Print
00103  *
00104  *  See interface description.
00105  *
00106  * =======================================================================
00107  */
00108 void
00109 GTN_TN_SET_Print(GTN_SET *gtn_set, FILE *file)
00110 {
00111   Check_Local_Pool_Initialized();
00112   MEM_POOL_Push(&local_pool);
00113 
00114   TN_SET *tn_set = TN_SET_Create_Empty (Last_TN + 1,&local_pool);
00115   for ( TN *tn = GTN_SET_Choose(gtn_set);
00116   tn != GTN_SET_CHOOSE_FAILURE && tn != NULL;
00117   tn = GTN_SET_Choose_Next(gtn_set,tn)) 
00118   {
00119     FmtAssert(TN_is_global_reg(tn),("TN%d is not global",TN_number(tn)));
00120     tn_set = TN_SET_Union1D(tn_set, tn, &local_pool);
00121   }
00122 
00123   TN_SET_Print(tn_set,file);
00124 
00125   MEM_POOL_Pop(&local_pool);
00126 }