From: Godzil <godzil@godzil.net>
Date: Tue, 12 Mar 2013 02:18:07 +0000 (+0100)
Subject: Another batch...
X-Git-Url: https://git.ndcode.org/public/gitweb.cgi?a=commitdiff_plain;h=674eb619085104c0b5024ecbc53a8b142e1b5dc6;p=ack.git

Another batch...
---

diff --git a/util/ego/share/aux.h b/util/ego/share/aux.h
index 99079ff64..a532d087e 100644
--- a/util/ego/share/aux.h
+++ b/util/ego/share/aux.h
@@ -32,7 +32,7 @@ extern line_p reg_mes();	/* (offset tmp; short size; int typ,score)
 				 * given arguments.
 				 */
 extern bool dom();		/* (bblock_p b1,b2)
-				/* See if b1 dominates b2. Note that a
+				 * See if b1 dominates b2. Note  that a
 				 * block always * dominates itself.
 				 */
 extern bblock_p common_dom();	/* (bblock_p a,b)
diff --git a/util/ego/share/debug.c b/util/ego/share/debug.c
index b16d488a2..4b0593bf0 100644
--- a/util/ego/share/debug.c
+++ b/util/ego/share/debug.c
@@ -17,14 +17,62 @@
 #include "debug.h"
 #include "global.h"
 
-
-
 int		linecount;	/* # lines in this file */
 bool verbose_flag = FALSE;  /* generate verbose output ? */
 
+#ifdef __STDC__
+
 /* VARARGS1 */
-error(s,a) char *s,*a; {
+void error(char *s, ...)
+{
+   va_list ap;
+	fprintf(stderr,"error on line %u",linecount);
+	if (filename != (char *) 0) {
+		fprintf(stderr," file %s",filename);
+	}
+	fprintf(stderr,": ");
+	va_start(ap, s);
+	vfprintf(stderr,s, ap);
+	va_end(ap);
+	fprintf(stderr,"\n");
+	abort();
+	exit(-1);
+}
+
+#ifdef TRACE
+/* VARARGS1 */
+void OUTTRACE(char *s, ...)
+{
+   va_list ap;
+	fprintf(stderr,"> ");
+	va_start(ap, s);
+	vfprintf(stderr,s, ap);
+	va_end(ap);
+	fprintf(stderr,"\n");
+}
+#endif
 
+#ifdef VERBOSE
+/* VARARGS1 */
+void OUTVERBOSE(char *s, ...)
+{
+	if (verbose_flag) {
+      va_list ap;
+      
+      fprintf(stderr,"optimization: ");
+   	va_start(ap, s);
+   	vfprintf(stderr,s, ap);
+   	va_end(ap);
+   	fprintf(stderr,"\n");
+	}
+}
+#endif
+
+#else /* __STDC__ */
+
+/* VARARGS1 */
+void error(char *s, char *a)
+{
 	fprintf(stderr,"error on line %u",linecount);
 	if (filename != (char *) 0) {
 		fprintf(stderr," file %s",filename);
@@ -38,9 +86,7 @@ error(s,a) char *s,*a; {
 
 #ifdef TRACE
 /* VARARGS1 */
-OUTTRACE(s,n)
-	char *s;
-	int n;
+void OUTTRACE(char *s, int n)
 {
 	fprintf(stderr,"> ");
 	fprintf(stderr,s,n);
@@ -50,9 +96,7 @@ OUTTRACE(s,n)
 
 #ifdef VERBOSE
 /* VARARGS1 */
-OUTVERBOSE(s,n1,n2)
-	char *s;
-	int n1,n2;
+void OUTVERBOSE(char *s, int n1, int n2)
 {
 	if (verbose_flag) {
 		fprintf(stderr,"optimization: ");
@@ -62,17 +106,18 @@ OUTVERBOSE(s,n1,n2)
 }
 #endif
 
-
+#endif /* __STDC__ */
 
 #ifdef DEBUG
-badassertion(file,line) char *file; unsigned line; {
-
+void badassertion(char *file, unsigned int line)
+{
 	fprintf(stderr,"assertion failed file %s, line %u\n",file,line);
 	error("assertion");
 }
 /* Valid Address */
 
-VA(a)  short *a; {
+void VA(short *a)
+{
 	if (a == (short *) 0)  error("VA: 0 argument");
 	if ( ((unsigned) a & 01) == 01) {
 		/* MACHINE DEPENDENT TEST */
@@ -83,14 +128,16 @@ VA(a)  short *a; {
 
 /* Valid Instruction code */
 
-VI(i) short i; {
+void VI(short i)
+{
 	if (i > ps_last) error("VI: illegal instr: %d", i);
 }
 
 
 /* Valid Line */
 
-VL(l) line_p l; {
+void VL(line_p l)
+{
 	byte instr, optype;
 
 	VA((short *) l);
@@ -106,7 +153,8 @@ VL(l) line_p l; {
 
 /* Valid Data block */
 
-VD(d) dblock_p d; {
+void VD(dblock_p d)
+{
 	byte pseudo;
 
 	VA((short *) d);
@@ -119,7 +167,8 @@ VD(d) dblock_p d; {
 
 /* Valid Object */
 
-VO(o) obj_p o; {
+void VO(obj_p o)
+{
 	offset off;
 
 	VA((short *) o);
@@ -133,7 +182,8 @@ VO(o) obj_p o; {
 
 /* Valid Proc */
 
-VP(p) proc_p p; {
+void VP(proc_p p)
+{
 	proc_id pid;
 	int nrlabs;
 
diff --git a/util/ego/share/debug.h b/util/ego/share/debug.h
index 9cb5cac51..8cec2a383 100644
--- a/util/ego/share/debug.h
+++ b/util/ego/share/debug.h
@@ -11,20 +11,42 @@
 extern int		linecount;	/* # lines in this file */
 extern bool		verbose_flag;  /* generate verbose output ? */
 
+#ifdef __STDC__
+
 /* VARARGS 1 */
-extern error();
+void error(char *fmt, ...);
+
+# ifdef TRACE
+void OUTTRACE(char *s, ...);
+# else /* TRACE */
+#  define OUTTRACE(s,n)
+# endif /* TRACE */
 
+# ifdef VERBOSE
+void OUTVERBOSE(char *s, ...);
+# else /* VERBOSE */
+#  define OUTVERBOSE(s,n1,n2)
+# endif /* VERBOSE */
+
+#else /* __STDC__ */
+
+/* VARARGS 1 */
+extern error();
 
-#ifdef TRACE
+# ifdef TRACE
 extern OUTTRACE();
-#else
-#define OUTTRACE(s,n)
-#endif
-#ifdef VERBOSE
+# else /* TRACE */
+#  define OUTTRACE(s,n)
+# endif /* TRACE */
+
+# ifdef VERBOSE
 extern OUTVERBOSE();
-#else
-#define OUTVERBOSE(s,n1,n2)
-#endif
+# else /* VERBOSE */
+#  define OUTVERBOSE(s,n1,n2)
+# endif /* VERBOSE */
+
+#endif /* __STDC__ */
+
 #ifdef DEBUG
 
 /* Some (all?) Unix debuggers don't particularly like
diff --git a/util/ego/share/go.c b/util/ego/share/go.c
index 07434e915..81c88fdb9 100644
--- a/util/ego/share/go.c
+++ b/util/ego/share/go.c
@@ -29,9 +29,7 @@ STATIC bool core_flag = FALSE;    /* report core usage? */
 #endif
 
 
-STATIC mach_init(machfile,phase_machinit)
-	char *machfile;
-	int (*phase_machinit)();
+STATIC void mach_init(char *machfile, int (*phase_machinit)(FILE *))
 {
 	/* Read target machine dependent information */
 
@@ -47,13 +45,9 @@ STATIC mach_init(machfile,phase_machinit)
 
 
 
-go(argc,argv,initialize,optimize,phase_machinit,proc_flag)
-	int argc;
-	char *argv[];
-	int (*initialize)();
-	int (*optimize)();
-	int (*phase_machinit)();
-	int (*proc_flag)();
+void go(int argc, char *argv[], int (*initialize)(void), 
+        int (*optimize)(proc_p), int (*phase_machinit)(FILE *), 
+        int (*proc_flag)(char *))
 {
 	FILE *f, *gf, *f2, *gf2;  /* The EM input and output and
 				 * the basic block graphs input and output
@@ -140,9 +134,12 @@ go(argc,argv,initialize,optimize,phase_machinit,proc_flag)
 }
 
 
-no_action() { }
+int no_action(proc_p dummy)
+{
+   return 0;   
+}
 
-core_usage()
+void core_usage()
 {
 #ifdef DEBUG
 	if (core_flag) {
@@ -151,9 +148,7 @@ core_usage()
 #endif
 }
 
-report(s,n)
-	char *s;
-	int n;
+void report(char *s, int n)
 {
 	/* Report number of optimizations found, if report_flag is set */
 
diff --git a/util/ego/share/go.h b/util/ego/share/go.h
index 86c56f246..7d0344b9c 100644
--- a/util/ego/share/go.h
+++ b/util/ego/share/go.h
@@ -9,6 +9,18 @@
  *
  */
 
+#ifdef __STDC__
+
+void go(int argc, char *argv[], int (*initialize)(void), 
+         int (*optimize)(proc_p), int (*phase_machinit)(FILE *), 
+         int (*proc_flag)(char *));
+         
+int no_action(proc_p dummy);
+
+void core_usage();
+void report(char *s, int n);
+
+#else 
 
 extern go();		/* ( int argc; char *argv[];
 			 *   int (*initialize)(); int (*optimize)(); 
@@ -37,3 +49,5 @@ extern report();	/* ( char *s; int n)
 			 * Report number of optimizations found, if 
 			 * report_flag is set
 			 */
+
+#endif
\ No newline at end of file
diff --git a/util/ego/share/makecldef.c b/util/ego/share/makecldef.c
index ff22f68f1..7ae157846 100644
--- a/util/ego/share/makecldef.c
+++ b/util/ego/share/makecldef.c
@@ -6,7 +6,7 @@
  
 #include <stdlib.h>
 #include <stdio.h>
-
+#include <string.h>
 /*  MAKECLASSDEF
  *
  * This program is used by several phases of the optimizer
@@ -25,8 +25,9 @@
 #define TRUE  1
 #define FALSE 0
 
-convert(mnemfile,classfile)
-	FILE *mnemfile, *classfile;
+void error(char *);
+
+void convert(FILE *mnemfile, FILE *classfile)
 {
 	char mnem1[10], mnem2[10],def[10];
 	int src,res,newcl,opc;
@@ -61,19 +62,13 @@ convert(mnemfile,classfile)
 	printf("};\n");
 }
 
-
-
-error(s)
-	char *s;
+void error(char *s)
 {
 	fprintf(stderr,"%s\n",s);
 	exit(-1);
 }
 
-
-main(argc,argv)
-	int argc;
-	char *argv[];
+int main(int argc, char *argv[])
 {
 	FILE *f1,*f2;
 
diff --git a/util/opt/alloc.c b/util/opt/alloc.c
index f9ae82bfb..d4a31b185 100644
--- a/util/opt/alloc.c
+++ b/util/opt/alloc.c
@@ -87,6 +87,7 @@ int asizetab[] = {
 void oldline(line_p lnp);
 void oldargb(argb_p abp);
 void oldreg(reg_p rp);
+void oldargs(arg_p ap);
 
 /*
  * alloc routines:
@@ -131,7 +132,7 @@ arg_p newarg(int kind)
 	return(ap);
 }
 
-void ldargs(arg_p ap)
+void oldargs(arg_p ap)
 {
 	arg_p	next;
 
diff --git a/util/opt/flow.c b/util/opt/flow.c
index 77f6042c2..69a47bc24 100644
--- a/util/opt/flow.c
+++ b/util/opt/flow.c
@@ -21,14 +21,19 @@ static char rcsid[] = "$Id$";
  * Author: Hans van Staveren
  */
 
-flow() {
+void findreach();
+void reach(line_p lnp);
+void cleaninstrs();
 
+void flow()
+{
 	findreach();	/* determine reachable labels */
 	cleaninstrs();	/* throw away unreachable code */
 }
 
-findreach() {
-	register num_p	*npp,np;
+void findreach()
+{
+	num_p	*npp,np;
 
 	reach(instrs);
 	for(npp=curpro.numhash;npp< &curpro.numhash[NNUMHASH]; npp++)
@@ -51,8 +56,9 @@ findreach() {
 			}
 }
 
-reach(lnp) register line_p lnp; {
-	register num_p np;
+void reach(line_p lnp)
+{
+	num_p np;
 
 	for (;lnp != (line_p) 0; lnp = lnp->l_next) {
 		if(lnp->l_optyp == OPNUMLAB) {
@@ -88,9 +94,10 @@ reach(lnp) register line_p lnp; {
 	}
 }
 
-cleaninstrs() {
-	register line_p *lpp,lp,*lastbra;
-	bool reachable,superfluous;
+void cleaninstrs()
+{
+	line_p *lpp, lp, *lastbra;
+	bool reachable, superfluous;
 	int instr;
 
 	lpp = &instrs; lastbra = (line_p *) 0; reachable = TRUE;
diff --git a/util/opt/mktab.y b/util/opt/mktab.y
index a4b5c845c..f1a047019 100644
--- a/util/opt/mktab.y
+++ b/util/opt/mktab.y
@@ -46,6 +46,16 @@ int CBO_instrs[] = {
 	/* don't add op_mli and op_mlu! */
 };
 
+
+void enter(char *name, int value);
+void yyerror(char *s);
+void printnodes();
+void initio();
+void outpat(int exprno, int instrno);
+void outbyte(int b);
+void outshort(int s);
+void out(int w);
+
 int	patCBO;
 int	rplCBO;
 %}
@@ -242,8 +252,9 @@ struct hashmnem {
 	byte h_value;
 } hashmnem[HASHSIZE];
 
-inithash() {
-	register i;
+void inithash()
+{
+	int i;
 
 	enter("lab",op_lab);
 	enter("LLP",op_LLP);
@@ -255,8 +266,9 @@ inithash() {
 		enter(em_mnem[i],i+sp_fmnem);
 }
 
-unsigned hashname(name) register char *name; {
-	register unsigned h;
+unsigned int hashname(char *name)
+{
+	unsigned int h;
 
 	h = (*name++)&BMASK;
 	h = (h<<4)^((*name++)&BMASK);
@@ -264,8 +276,9 @@ unsigned hashname(name) register char *name; {
 	return(h);
 }
 
-enter(name,value) char *name; {
-	register unsigned h;
+void enter(char *name, int value)
+{
+	unsigned int h;
 
 	h=hashname(name)%HASHSIZE;
 	while (hashmnem[h].h_name[0] != 0)
@@ -274,8 +287,9 @@ enter(name,value) char *name; {
 	hashmnem[h].h_value = value;
 }
 
-int mlookup(name) char *name; {
-	register unsigned h;
+int mlookup(char *name)
+{
+	unsigned int h;
 
 	h = hashname(name)%HASHSIZE;
 	while (strncmp(hashmnem[h].h_name,name,3) != 0 &&
@@ -284,8 +298,8 @@ int mlookup(name) char *name; {
 	return(hashmnem[h].h_value&BMASK);	/* 0 if not found */
 }
 
-main() {
-
+int main(int argc, char *argv[])
+{
 	inithash();
 	initio();
 	yyparse();
@@ -294,20 +308,21 @@ main() {
 	return nerrors;
 }
 
-yyerror(s) char *s; {
-
+void yyerror(char *s)
+{
 	fprintf(stderr,"line %d: %s\n",lino,s);
 	nerrors++;
 }
 
-lookup(comm,operator,lnode,rnode) {
-	register expr_p p;
+int lookup(int comm, int operator, int lnode, int rnode)
+{
+	expr_p p;
 
 	for (p=nodes+1;p<lastnode;p++) {
 		if (p->ex_operator != operator)
 			continue;
-		if (!(p->ex_lnode == lnode && p->ex_rnode == rnode ||
-		    comm && p->ex_lnode == rnode && p->ex_rnode == lnode))
+		if (!((p->ex_lnode == lnode && p->ex_rnode == rnode) ||
+		    (comm && p->ex_lnode == rnode && p->ex_rnode == lnode)))
 			continue;
 		return(p-nodes);
 	}
@@ -320,20 +335,22 @@ lookup(comm,operator,lnode,rnode) {
 	return(p-nodes);
 }
 
-printnodes() {
-	register expr_p p;
+void printnodes()
+{
+	expr_p p;
 
 	printf("};\n\nshort lastind = %d;\n\nexpr_t enodes[] = {\n",prevind);
 	for (p=nodes;p<lastnode;p++)
-		printf("/* %3d */\t%3d,%6u,%6u,\n",
+		printf("/* %3ld */\t%3d,%6u,%6u,\n",
 			p-nodes,p->ex_operator,p->ex_lnode,p->ex_rnode);
 	printf("};\n\niarg_t iargs[%d];\n", (maxpatlen>0 ? maxpatlen : 1));
 	if (patid[0])
 		printf("static char rcsid[] = %s;\n",patid);
 }
 
-initio() {
-	register i;
+void initio()
+{
+	int i;
 
 	printf("#include \"param.h\"\n#include \"types.h\"\n");
 	printf("#include \"pattern.h\"\n\n");
@@ -374,9 +391,9 @@ initio() {
 	curind = 1;
 }
 
-outpat(exprno, instrno)
+void outpat(int exprno, int instrno)
 {
-	register int i;
+	int i;
 
   	outbyte(0); outshort(prevind); prevind=curind-3;
   	out(patlen);
@@ -399,20 +416,20 @@ outpat(exprno, instrno)
   	if (patlen>maxpatlen) maxpatlen=patlen;
 }
 
-outbyte(b) {
-
+void outbyte(int b)
+{
 	printf(",%3d",b);
 	curind++;
 }
 
-outshort(s) {
-
+void outshort(int s)
+{
 	outbyte(s&0377);
 	outbyte((s>>8)&0377);
 }
 
-out(w) {
-
+void out(int w)
+{
 	if (w<255) {
 		outbyte(w);
 	} else {
diff --git a/util/opt/peephole.c b/util/opt/peephole.c
index 236fe1bda..96972b872 100644
--- a/util/opt/peephole.c
+++ b/util/opt/peephole.c
@@ -28,6 +28,8 @@ static char rcsid[] = "$Id$";
 #include <stdio.h>
 #endif
 
+int optimize();
+
 #define ILLHASH 0177777
 short pathash[256];	/* table of indices into pattern[] */
 
@@ -39,8 +41,8 @@ byte transl[op_plast-op_pfirst+1][3] = {
 	/* SEP */	{ op_SEP, op_ste, op_sde }
 };
 
-opcheck(bp) register byte *bp; {
-
+void opcheck(byte *bp)
+{
 	if (((*bp)&BMASK) >= op_pfirst)
 		*bp = transl[((*bp)&BMASK)-op_pfirst][opind];
 }
@@ -54,11 +56,12 @@ opcheck(bp) register byte *bp; {
  * Estimated improvement possible: about 2%
  */
 
-hashpatterns() {
+void hashpatterns()
+{
 	short index;
-	register byte *bp,*tp;
-	register short i;
-	unsigned short hashvalue;
+	byte *bp,*tp;
+	short i;
+	short hashvalue;
 	byte *save;
 	int patlen;
 
@@ -121,7 +124,8 @@ hashpatterns() {
 	}
 }
 
-peephole() {
+int peephole()
+{
 	static bool phashed = FALSE;
 
 	if (!phashed) {
@@ -131,9 +135,10 @@ peephole() {
 	return optimize();
 }
 
-optimize() {
-	register num_p *npp,np;
-	register instr;
+int optimize()
+{
+	num_p *npp,np;
+	int instr;
 	bool madeopt;
 
 	madeopt = basicblock(&instrs);
@@ -152,15 +157,16 @@ optimize() {
 	return madeopt;
 }
 
-offset oabs(off) offset off; {
-
+offset oabs(offset off)
+{
 	return(off >= 0 ? off : -off);
 }
 
-line_p repline(ev,patlen) eval_t ev; {
-	register line_p lp;
-	register iarg_p iap;
-	register sym_p sp;
+line_p repline(eval_t ev, int patlen)
+{
+	line_p lp;
+	iarg_p iap;
+	sym_p sp;
 	offset diff,newdiff;
 
 	assert(ev.e_typ != EV_UNDEF);
@@ -226,7 +232,8 @@ line_p repline(ev,patlen) eval_t ev; {
 	}
 }
 
-offset rotate(w,amount) offset w,amount; {
+offset rotate(offset w, offset amount)
+{
 	offset highmask,lowmask;
 
 #ifndef LONGOFF
@@ -241,10 +248,11 @@ offset rotate(w,amount) offset w,amount; {
 
 eval_t undefres = { EV_UNDEF };
 
-eval_t compute(pexp) register expr_p pexp; {
+eval_t compute(expr_p pexp)
+{
 	eval_t leaf1,leaf2,res;
-	register i;
-	register sym_p sp;
+	int i;
+	sym_p sp;
 	offset mask;
 
 	switch(nparam[pexp->ex_operator]) {
@@ -252,15 +260,15 @@ eval_t compute(pexp) register expr_p pexp; {
 		assert(FALSE);
 	case 2:
 		leaf2 = compute(&enodes[pexp->ex_rnode]);
-		if (leaf2.e_typ == EV_UNDEF ||
-		    nonumlab[pexp->ex_operator] && leaf2.e_typ == EV_NUMLAB ||
-		    onlyconst[pexp->ex_operator] && leaf2.e_typ != EV_CONST)
+		if ((leaf2.e_typ == EV_UNDEF) ||
+		    (nonumlab[pexp->ex_operator] && leaf2.e_typ == EV_NUMLAB) ||
+		    (onlyconst[pexp->ex_operator] && leaf2.e_typ != EV_CONST) )
 			return(undefres);
 	case 1:
 		leaf1 = compute(&enodes[pexp->ex_lnode]);
-		if (leaf1.e_typ == EV_UNDEF ||
-		    nonumlab[pexp->ex_operator] && leaf1.e_typ == EV_NUMLAB ||
-		    onlyconst[pexp->ex_operator] && leaf1.e_typ != EV_CONST)
+		if ((leaf1.e_typ == EV_UNDEF) ||
+		    (nonumlab[pexp->ex_operator] && leaf1.e_typ == EV_NUMLAB) ||
+		    (onlyconst[pexp->ex_operator] && leaf1.e_typ != EV_CONST))
 			return(undefres);
 	case 0:
 		break;
diff --git a/util/opt/putline.c b/util/opt/putline.c
index 3bd4fb05f..a7aa175ec 100644
--- a/util/opt/putline.c
+++ b/util/opt/putline.c
@@ -363,7 +363,7 @@ void outsym(sym_p sp)
 {
 	byte *p;
 	unsigned int num;
-	warning("May do something nasty... (%s)", __func__);
+	printf("May do something nasty... (%s)", __func__);
 	if (sp->s_name[0] == '.') {
 		num = atoi(&sp->s_name[1]);
 		if (num < 256) {
diff --git a/util/opt/reg.c b/util/opt/reg.c
index 00fc2e3b2..dbbeee3cd 100644
--- a/util/opt/reg.c
+++ b/util/opt/reg.c
@@ -21,9 +21,10 @@ static char rcsid[] = "$Id$";
  * Author: Hans van Staveren
  */
 
-regvar(ap) register arg_p ap; {
-	register reg_p rp;
-	register i;
+void regvar(arg_p ap)
+{
+	reg_p rp;
+	int i;
 
 	rp = newreg();
 	i=0;
@@ -46,7 +47,8 @@ regvar(ap) register arg_p ap; {
 	curpro.freg = rp;
 }
 
-inreg(off) offset off; {
+int inreg(offset off)
+{
 	register reg_p rp;
 
 	for (rp=curpro.freg; rp != (reg_p) 0; rp=rp->r_next)
@@ -55,9 +57,10 @@ inreg(off) offset off; {
 	return(FALSE);
 }
 
-outregs() {
-	register reg_p rp,tp;
-	register i;
+void outregs()
+{
+	reg_p rp,tp;
+	int i;
 
 	for(rp=curpro.freg; rp != (reg_p) 0; rp = tp) {
 		tp = rp->r_next;
@@ -79,8 +82,8 @@ outregs() {
 }
 
 /* outtes() handles the output of the top elt. messages */
-outtes() {
-	register num_p *npp, np;
+void outtes() {
+	num_p *npp, np;
 
 	for (npp=curpro.numhash;npp< &curpro.numhash[NNUMHASH]; npp++) {
 		for (np = *npp; np != (num_p) 0; np=np->n_next) {
@@ -96,8 +99,9 @@ outtes() {
 	}
 }
 
-incregusage(off) offset off; {
-	register reg_p rp;
+void incregusage(offset off)
+{
+	reg_p rp;
 
 #ifndef GLOBAL_OPT
 	/* If we're optimizing the output of the global optimizer
diff --git a/util/opt/tes.c b/util/opt/tes.c
index ab6ce3bbd..04db39cb7 100644
--- a/util/opt/tes.c
+++ b/util/opt/tes.c
@@ -24,6 +24,9 @@ static char rcsid[] = "$Id$";
 extern char *pop_push[];
 extern char flow_tab[];
 
+void assign_label(num_p label);
+void do_inst_label(line_p lnp);
+
 #define NON_CONTINUABLE(i)	(flow_tab[i]&JUMP)
 #define ISABRANCH(i)		(flow_tab[i]&HASLABEL)
 #define ISCONDBRANCH(i)		(flow_tab[i]&CONDBRA)
@@ -39,22 +42,22 @@ extern char flow_tab[];
 int state;
 static int stacktop = 0;
 
-init_state()
+void init_state()
 {
 	stacktop = 0;
 	state = KNOWN;
 }
 
-tes_pseudos()
+void tes_pseudos()
 {
-	register line_p lp;
+	line_p lp;
 
 	for (lp = pseudos; lp != (line_p)0; lp = lp->l_next) {
 		switch(INSTR(lp)) {
 		case ps_con:
 		case ps_rom:
 			if (lp->l_optyp == OPLIST) {
-				register arg_p ap = lp->l_a.la_arg;
+				arg_p ap = lp->l_a.la_arg;
 
 				while (ap != (arg_p) 0) {
 					if (ap->a_typ == ARGNUM) {
@@ -68,12 +71,11 @@ tes_pseudos()
 	}
 }
 
-tes_instr(lnp, x, y)
-line_p lnp, x, y;
+void tes_instr(line_p lnp, line_p x, line_p y)
 {
 	char *s;
-	register instr = INSTR(lnp);
-	register int arg, argdef;
+	int instr = INSTR(lnp);
+	int arg, argdef;
 	int neg = 0;
 
 	if (instr == op_lab) {
@@ -155,8 +157,7 @@ line_p lnp, x, y;
 	}
 }
 
-assign_label(label)
-register num_p label;
+void assign_label(num_p label)
 {
 	if (label->n_flags & NUMSET) {
 		if (state == NOTREACHED || stacktop > label->n_size) {
@@ -170,8 +171,7 @@ register num_p label;
 	}
 }
 
-do_inst_label(lnp)	/* (re-)install a label */
-line_p lnp;
+void do_inst_label(line_p lnp)	/* (re-)install a label */
 {
 	num_p label = lnp->l_a.la_np->n_repl;
 	int instr = INSTR(lnp);