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/*-------------------------------------------------------------------------
SDCClrange.h - header file for live range computations
Written By - Sandeep Dutta . sandeep.dutta@usa.net (1998)
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, 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, write to the Free Software
Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
In other words, you are welcome to use, share and improve this program.
You are forbidden to forbid anyone else to use, share and improve
what you give them. Help stamp out software-hoarding!
-------------------------------------------------------------------------*/
#ifndef SDCCLRANGE_H
#define SDCCLRANGE_H 1
extern hTab *liveRanges;
extern hTab *iCodehTab;
extern hTab *iCodeSeqhTab;
int notUsedInBlock (symbol *, eBBlock *, iCode *);
bool allDefsOutOfRange (bitVect *, int, int);
void computeLiveRanges (eBBlock **ebbs, int count, bool emitWarnings);
void recomputeLiveRanges (eBBlock **ebbs, int count, bool emitWarnings);
void setToRange (operand *, int, bool);
void hashiCodeKeys (eBBlock **, int);
void adjustIChain (eBBlock ** ebbs, int count);
int separateLiveRanges (iCode *sic, ebbIndex *ebbi); /* Split iTemps that have non-connected live-ranges. */
int shortenLiveRanges (iCode *sic, ebbIndex *ebbi); /* Do some optimizations that shorten live ranges. */
#endif
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