Initial revision

This commit is contained in:
bal 1984-11-26 14:07:17 +00:00
parent 415ae7e922
commit f01e1431b0
3 changed files with 258 additions and 0 deletions

175
util/ego/cs/Makefile Normal file
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# CPPFLAGS=-DVERBOSE -DTRACE
CPPFLAGS=-DVERBOSE
CFLAGS=-O $(CPPFLAGS)
LDFLAGS=-i
LINTFLAGS=-phbac $(CPPFLAGS)
EMH=../../../h
EMLIB=../../../lib
SHR=../share
CFILES=\
cs.c cs_alloc.c cs_aux.c cs_avail.c cs_debug.c cs_elim.c \
cs_entity.c cs_kill.c cs_partit.c cs_profit.c cs_getent.c \
cs_stack.c cs_vnm.c
OFILES=\
cs.o cs_alloc.o cs_aux.o cs_avail.o cs_debug.o cs_elim.o \
cs_entity.o cs_kill.o cs_partit.o cs_profit.o cs_getent.o \
cs_stack.o cs_vnm.o
HFILES=\
cs.h cs_alloc.h cs_aux.h cs_avail.h cs_debug.h cs_elim.h \
cs_entity.h cs_kill.h cs_partit.h cs_profit.h cs_getent.h \
cs_stack.h cs_vnm.h
PRFILES=\
$(CFILES) $(HFILES) Makefile
SHARE_OFILES=\
$(SHR)/get.o $(SHR)/put.o $(SHR)/alloc.o $(SHR)/global.o $(SHR)/debug.o\
$(SHR)/files.o $(SHR)/map.o $(SHR)/lset.o $(SHR)/cset.o $(SHR)/aux.o\
$(SHR)/go.o
cs: $(OFILES)
$(CC) -o cs $(LDFLAGS) $(OFILES) $(SHARE_OFILES) $(EMLIB)/em_data.a
lint:
lint $(LINTFLAGS) $(CFILES)
pr: $(PRFILES)
@pr $?
@touch pr
depend:
$(SHR)/makedepend
# the next lines are generated automatically
# AUTOAUTOAUTOAUTOAUTOAUTO
cs.o: ../share/debug.h
cs.o: ../share/go.h
cs.o: ../share/types.h
cs.o: cs.h
cs.o: cs_aux.h
cs.o: cs_avail.h
cs.o: cs_debug.h
cs.o: cs_elim.h
cs.o: cs_entity.h
cs.o: cs_profit.h
cs.o: cs_stack.h
cs.o: cs_vnm.h
cs_alloc.o: ../share/alloc.h
cs_alloc.o: ../share/types.h
cs_alloc.o: cs.h
cs_aux.o: ../share/aux.h
cs_aux.o: ../share/debug.h
cs_aux.o: ../share/global.h
cs_aux.o: ../share/lset.h
cs_aux.o: ../share/types.h
cs_aux.o: cs.h
cs_aux.o: cs_entity.h
cs_avail.o: ../../../h/em_mnem.h
cs_avail.o: ../share/aux.h
cs_avail.o: ../share/debug.h
cs_avail.o: ../share/global.h
cs_avail.o: ../share/lset.h
cs_avail.o: ../share/types.h
cs_avail.o: cs.h
cs_avail.o: cs_alloc.h
cs_avail.o: cs_aux.h
cs_avail.o: cs_getent.h
cs_debug.o: ../../../h/em_spec.h
cs_debug.o: ../share/debug.h
cs_debug.o: ../share/lset.h
cs_debug.o: ../share/types.h
cs_debug.o: cs.h
cs_debug.o: cs_aux.h
cs_debug.o: cs_avail.h
cs_debug.o: cs_entity.h
cs_elim.o: ../../../h/em_mnem.h
cs_elim.o: ../../../h/em_reg.h
cs_elim.o: ../share/alloc.h
cs_elim.o: ../share/aux.h
cs_elim.o: ../share/debug.h
cs_elim.o: ../share/global.h
cs_elim.o: ../share/lset.h
cs_elim.o: ../share/types.h
cs_elim.o: cs.h
cs_elim.o: cs_alloc.h
cs_elim.o: cs_aux.h
cs_elim.o: cs_avail.h
cs_elim.o: cs_debug.h
cs_elim.o: cs_partit.h
cs_elim.o: cs_profit.h
cs_entity.o: ../share/debug.h
cs_entity.o: ../share/global.h
cs_entity.o: ../share/lset.h
cs_entity.o: ../share/types.h
cs_entity.o: cs.h
cs_entity.o: cs_aux.h
cs_getent.o: ../../../h/em_mnem.h
cs_getent.o: ../share/aux.h
cs_getent.o: ../share/debug.h
cs_getent.o: ../share/global.h
cs_getent.o: ../share/types.h
cs_getent.o: cs.h
cs_getent.o: cs_aux.h
cs_getent.o: cs_entity.h
cs_getent.o: cs_stack.h
cs_kill.o: ../../../h/em_mnem.h
cs_kill.o: ../share/aux.h
cs_kill.o: ../share/cset.h
cs_kill.o: ../share/debug.h
cs_kill.o: ../share/global.h
cs_kill.o: ../share/lset.h
cs_kill.o: ../share/types.h
cs_kill.o: cs.h
cs_kill.o: cs_aux.h
cs_kill.o: cs_avail.h
cs_kill.o: cs_debug.h
cs_kill.o: cs_entity.h
cs_partit.o: ../../../h/em_mnem.h
cs_partit.o: ../../../h/em_pseu.h
cs_partit.o: ../../../h/em_reg.h
cs_partit.o: ../../../h/em_spec.h
cs_partit.o: ../share/aux.h
cs_partit.o: ../share/debug.h
cs_partit.o: ../share/global.h
cs_partit.o: ../share/types.h
cs_partit.o: cs.h
cs_partit.o: cs_stack.h
cs_profit.o: ../../../h/em_mnem.h
cs_profit.o: ../../../h/em_spec.h
cs_profit.o: ../share/aux.h
cs_profit.o: ../share/cset.h
cs_profit.o: ../share/debug.h
cs_profit.o: ../share/global.h
cs_profit.o: ../share/lset.h
cs_profit.o: ../share/types.h
cs_profit.o: cs.h
cs_profit.o: cs_aux.h
cs_profit.o: cs_avail.h
cs_profit.o: cs_partit.h
cs_stack.o: ../share/aux.h
cs_stack.o: ../share/debug.h
cs_stack.o: ../share/global.h
cs_stack.o: ../share/types.h
cs_stack.o: cs.h
cs_stack.o: cs_aux.h
cs_valno.o: ../share/debug.h
cs_valno.o: ../share/types.h
cs_valno.o: cs.h
cs_vnm.o: ../../../h/em_mnem.h
cs_vnm.o: ../share/aux.h
cs_vnm.o: ../share/debug.h
cs_vnm.o: ../share/global.h
cs_vnm.o: ../share/types.h
cs_vnm.o: cs.h
cs_vnm.o: cs_alloc.h
cs_vnm.o: cs_aux.h
cs_vnm.o: cs_avail.h
cs_vnm.o: cs_entity.h
cs_vnm.o: cs_getent.h
cs_vnm.o: cs_kill.h
cs_vnm.o: cs_partit.h
cs_vnm.o: cs_stack.h

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util/ego/cs/cs.c Normal file
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/* C O M M O N S U B E X P R E S S I O N E L I M I N A T I O N */
#include <stdio.h>
#include "../share/types.h"
#include "../share/lset.h"
#include "../share/debug.h"
#include "../share/go.h"
#include "cs.h"
#include "cs_aux.h"
#include "cs_avail.h"
#include "cs_debug.h"
#include "cs_elim.h"
#include "cs_entity.h"
#include "cs_profit.h"
#include "cs_stack.h"
#include "cs_vnm.h"
int Scs; /* Number of optimizations found. */
STATIC cs_clear()
{
clr_avails();
clr_entities();
clr_stack();
start_valnum();
}
STATIC cs_optimize(p)
proc_p p;
{
/* Optimize all basic blocks of one procedure. */
register bblock_p rbp, bdone;
avails = (avail_p) 0;
entities = Lempty_set();
cs_clear();
rbp = p->p_start;
while (rbp != (bblock_p) 0) {
bdone = rbp->b_idom;
/* First we build a list of common expressions with the
* value numbering algorithm. We take blocks in textual order
* as long as the next block can only be reached through the
* block we have just done.
*/
while (rbp != (bblock_p) 0 && rbp->b_idom == bdone) {
vnm(rbp); bdone = rbp;
OUTTRACE("basic block %d processed", bdone->b_id);
rbp = rbp->b_next;
}
OUTTRACE("value numbering completed", 0);
OUTAVAILS(); OUTENTITIES();
/* Now we put out the instructions without common
* subexpressions but with the use of temporaries,
* which will be local variables of procedure p.
*/
eliminate(p);
cs_clear();
}
}
main(argc, argv)
int argc;
char *argv[];
{
Scs = 0;
go(argc, argv, no_action, cs_optimize, cs_machinit, no_action);
report("Duplicate expressions eliminated", Scs);
exit(0);
}

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util/ego/cs/cs_getent.h Normal file
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extern entity_p getentity(); /* (line_p lnp, *l_out)
* Extract the entity lnp refers and enter it
* in the table of entities. The main entity
* lnp refers to is returned; sometimes there
* is more than one entity. The first line that
* was involved in pushing it is returned
* through l_out.
*/