all: merge dev.cc (81884b89bd88) into default

With this change, default now contains Go 1.5 work.
Any future bug fixes for Go 1.4 in the compilers or
the runtime will have to be made directly to the
release branch.

1 files changed, 0 insertions, 1537 deletions

diff --git a/src/cmd/8c/txt.c b/src/cmd/8c/txt.c
deleted file mode 100644
index 7f87a0a0d..000000000
--- a/src/cmd/8c/txt.c
+++ /dev/null
@@ -1,1537 +0,0 @@
-// Inferno utils/8c/txt.c
-// http://code.google.com/p/inferno-os/source/browse/utils/8c/txt.c
-//
-//	Copyright © 1994-1999 Lucent Technologies Inc.  All rights reserved.
-//	Portions Copyright © 1995-1997 C H Forsyth (forsyth@terzarima.net)
-//	Portions Copyright © 1997-1999 Vita Nuova Limited
-//	Portions Copyright © 2000-2007 Vita Nuova Holdings Limited (www.vitanuova.com)
-//	Portions Copyright © 2004,2006 Bruce Ellis
-//	Portions Copyright © 2005-2007 C H Forsyth (forsyth@terzarima.net)
-//	Revisions Copyright © 2000-2007 Lucent Technologies Inc. and others
-//	Portions Copyright © 2009 The Go Authors.  All rights reserved.
-//
-// Permission is hereby granted, free of charge, to any person obtaining a copy
-// of this software and associated documentation files (the "Software"), to deal
-// in the Software without restriction, including without limitation the rights
-// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-// copies of the Software, and to permit persons to whom the Software is
-// furnished to do so, subject to the following conditions:
-//
-// The above copyright notice and this permission notice shall be included in
-// all copies or substantial portions of the Software.
-//
-// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
-// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
-// THE SOFTWARE.
-
-#include "gc.h"
-
-
-int thechar = '8';
-char *thestring = "386";
-
-LinkArch	*thelinkarch = &link386;
-
-void
-linkarchinit(void)
-{
-}
-
-void
-ginit(void)
-{
-	int i;
-	Type *t;
-
-	exregoffset = 0;
-	exfregoffset = 0;
-	listinit();
-	nstring = 0;
-	mnstring = 0;
-	nrathole = 0;
-	pc = 0;
-	breakpc = -1;
-	continpc = -1;
-	cases = C;
-	lastp = P;
-	tfield = types[TLONG];
-
-	zprog.link = P;
-	zprog.as = AGOK;
-	zprog.from.type = D_NONE;
-	zprog.from.index = D_NONE;
-	zprog.from.scale = 0;
-	zprog.to = zprog.from;
-
-	regnode.op = OREGISTER;
-	regnode.class = CEXREG;
-	regnode.reg = REGTMP;
-	regnode.complex = 0;
-	regnode.addable = 11;
-	regnode.type = types[TLONG];
-
-	fregnode0 = regnode;
-	fregnode0.reg = D_F0;
-	fregnode0.type = types[TDOUBLE];
-
-	fregnode1 = fregnode0;
-	fregnode1.reg = D_F0+1;
-
-	constnode.op = OCONST;
-	constnode.class = CXXX;
-	constnode.complex = 0;
-	constnode.addable = 20;
-	constnode.type = types[TLONG];
-
-	fconstnode.op = OCONST;
-	fconstnode.class = CXXX;
-	fconstnode.complex = 0;
-	fconstnode.addable = 20;
-	fconstnode.type = types[TDOUBLE];
-
-	nodsafe = new(ONAME, Z, Z);
-	nodsafe->sym = slookup(".safe");
-	nodsafe->type = types[TINT];
-	nodsafe->etype = types[TINT]->etype;
-	nodsafe->class = CAUTO;
-	complex(nodsafe);
-
-	t = typ(TARRAY, types[TCHAR]);
-	symrathole = slookup(".rathole");
-	symrathole->class = CGLOBL;
-	symrathole->type = t;
-
-	nodrat = new(ONAME, Z, Z);
-	nodrat->sym = symrathole;
-	nodrat->type = types[TIND];
-	nodrat->etype = TVOID;
-	nodrat->class = CGLOBL;
-	complex(nodrat);
-	nodrat->type = t;
-
-	nodret = new(ONAME, Z, Z);
-	nodret->sym = slookup(".ret");
-	nodret->type = types[TIND];
-	nodret->etype = TIND;
-	nodret->class = CPARAM;
-	nodret = new(OIND, nodret, Z);
-	complex(nodret);
-
-	com64init();
-
-	for(i=0; i<nelem(reg); i++) {
-		reg[i] = 1;
-		if(i >= D_AX && i <= D_DI && i != D_SP)
-			reg[i] = 0;
-	}
-}
-
-void
-gclean(void)
-{
-	int i;
-	Sym *s;
-
-	reg[D_SP]--;
-	for(i=D_AX; i<=D_DI; i++)
-		if(reg[i])
-			diag(Z, "reg %R left allocated", i);
-	while(mnstring)
-		outstring("", 1L);
-	symstring->type->width = nstring;
-	symrathole->type->width = nrathole;
-	for(i=0; i<NHASH; i++)
-	for(s = hash[i]; s != S; s = s->link) {
-		if(s->type == T)
-			continue;
-		if(s->type->width == 0)
-			continue;
-		if(s->class != CGLOBL && s->class != CSTATIC)
-			continue;
-		if(s->type == types[TENUM])
-			continue;
-		gpseudo(AGLOBL, s, nodconst(s->type->width));
-	}
-	nextpc();
-	p->as = AEND;
-	outcode();
-}
-
-void
-nextpc(void)
-{
-	Plist *pl;
-
-	p = alloc(sizeof(*p));
-	*p = zprog;
-	p->lineno = nearln;
-	p->pc = pc;
-	pc++;
-	if(lastp == nil) {
-		pl = linknewplist(ctxt);
-		pl->firstpc = p;
-	} else
-		lastp->link = p;
-	lastp = p;
-}
-
-void
-gargs(Node *n, Node *tn1, Node *tn2)
-{
-	int32 regs;
-	Node fnxargs[20], *fnxp;
-
-	regs = cursafe;
-
-	fnxp = fnxargs;
-	garg1(n, tn1, tn2, 0, &fnxp);	/* compile fns to temps */
-
-	curarg = 0;
-	fnxp = fnxargs;
-	garg1(n, tn1, tn2, 1, &fnxp);	/* compile normal args and temps */
-
-	cursafe = regs;
-}
-
-int
-nareg(void)
-{
-	int i, n;
-
-	n = 0;
-	for(i=D_AX; i<=D_DI; i++)
-		if(reg[i] == 0)
-			n++;
-	return n;
-}
-
-void
-garg1(Node *n, Node *tn1, Node *tn2, int f, Node **fnxp)
-{
-	Node nod;
-
-	if(n == Z)
-		return;
-	if(n->op == OLIST) {
-		garg1(n->left, tn1, tn2, f, fnxp);
-		garg1(n->right, tn1, tn2, f, fnxp);
-		return;
-	}
-	if(f == 0) {
-		if(n->complex >= FNX) {
-			regsalloc(*fnxp, n);
-			nod = znode;
-			nod.op = OAS;
-			nod.left = *fnxp;
-			nod.right = n;
-			nod.type = n->type;
-			cgen(&nod, Z);
-			(*fnxp)++;
-		}
-		return;
-	}
-	if(typesu[n->type->etype] || typev[n->type->etype]) {
-		regaalloc(tn2, n);
-		if(n->complex >= FNX) {
-			sugen(*fnxp, tn2, n->type->width);
-			(*fnxp)++;
-		} else
-			sugen(n, tn2, n->type->width);
-		return;
-	}
-	if(REGARG >= 0 && curarg == 0 && typeilp[n->type->etype]) {
-		regaalloc1(tn1, n);
-		if(n->complex >= FNX) {
-			cgen(*fnxp, tn1);
-			(*fnxp)++;
-		} else
-			cgen(n, tn1);
-		return;
-	}
-	if(vconst(n) == 0) {
-		regaalloc(tn2, n);
-		gmove(n, tn2);
-		return;
-	}
-	regalloc(tn1, n, Z);
-	if(n->complex >= FNX) {
-		cgen(*fnxp, tn1);
-		(*fnxp)++;
-	} else
-		cgen(n, tn1);
-	regaalloc(tn2, n);
-	gmove(tn1, tn2);
-	regfree(tn1);
-}
-
-Node*
-nodconst(int32 v)
-{
-	constnode.vconst = v;
-	return &constnode;
-}
-
-Node*
-nodfconst(double d)
-{
-	fconstnode.fconst = d;
-	return &fconstnode;
-}
-
-int
-isreg(Node *n, int r)
-{
-
-	if(n->op == OREGISTER)
-		if(n->reg == r)
-			return 1;
-	return 0;
-}
-
-int
-nodreg(Node *n, Node *nn, int r)
-{
-
-	*n = regnode;
-	n->reg = r;
-	if(reg[r] == 0)
-		return 0;
-	if(nn != Z) {
-		n->type = nn->type;
-		n->lineno = nn->lineno;
-		if(nn->op == OREGISTER)
-		if(nn->reg == r)
-			return 0;
-	}
-	return 1;
-}
-
-void
-regret(Node *n, Node *nn, Type *t, int mode)
-{
-	int r;
-
-	if(mode == 0 || hasdotdotdot(t) || nn->type->width == 0) {
-		r = REGRET;
-		if(typefd[nn->type->etype])
-			r = FREGRET;
-		nodreg(n, nn, r);
-		reg[r]++;
-		return;
-	}
-	
-	if(mode == 1) {
-		// fetch returned value after call.
-		// already called gargs, so curarg is set.
-		curarg = (curarg+3) & ~3;
-		regaalloc(n, nn);
-		return;
-	}
-	
-	if(mode == 2) {
-		// store value to be returned.
-		// must compute arg offset.
-		if(t->etype != TFUNC)
-			fatal(Z, "bad regret func %T", t);
-		*n = *nn;
-		n->op = ONAME;
-		n->class = CPARAM;
-		n->sym = slookup(".retx");
-		n->complex = 0;
-		n->addable = 20;
-		n->xoffset = argsize(0);
-		return;
-	}
-	
-	fatal(Z, "bad regret");
-}
-
-void
-regalloc(Node *n, Node *tn, Node *o)
-{
-	int i;
-
-	switch(tn->type->etype) {
-	case TCHAR:
-	case TUCHAR:
-	case TSHORT:
-	case TUSHORT:
-	case TINT:
-	case TUINT:
-	case TLONG:
-	case TULONG:
-	case TIND:
-		if(o != Z && o->op == OREGISTER) {
-			i = o->reg;
-			if(i >= D_AX && i <= D_DI)
-				goto out;
-		}
-		for(i=D_AX; i<=D_DI; i++)
-			if(reg[i] == 0)
-				goto out;
-		diag(tn, "out of fixed registers");
-		goto err;
-
-	case TFLOAT:
-	case TDOUBLE:
-	case TVLONG:
-		i = D_F0;
-		goto out;
-	}
-	diag(tn, "unknown type in regalloc: %T", tn->type);
-err:
-	i = 0;
-out:
-	if(i)
-		reg[i]++;
-	nodreg(n, tn, i);
-}
-
-void
-regialloc(Node *n, Node *tn, Node *o)
-{
-	Node nod;
-
-	nod = *tn;
-	nod.type = types[TIND];
-	regalloc(n, &nod, o);
-}
-
-void
-regfree(Node *n)
-{
-	int i;
-
-	i = 0;
-	if(n->op != OREGISTER && n->op != OINDREG)
-		goto err;
-	i = n->reg;
-	if(i < 0 || i >= nelem(reg))
-		goto err;
-	if(reg[i] <= 0)
-		goto err;
-	reg[i]--;
-	return;
-err:
-	diag(n, "error in regfree: %R", i);
-}
-
-void
-regsalloc(Node *n, Node *nn)
-{
-	cursafe = align(cursafe, nn->type, Aaut3, nil);
-	maxargsafe = maxround(maxargsafe, cursafe+curarg);
-	*n = *nodsafe;
-	n->xoffset = -(stkoff + cursafe);
-	n->type = nn->type;
-	n->etype = nn->type->etype;
-	n->lineno = nn->lineno;
-}
-
-void
-regaalloc1(Node *n, Node *nn)
-{
-	if(REGARG < 0) {
-		fatal(n, "regaalloc1 and REGARG<0");
-		return;
-	}
-	nodreg(n, nn, REGARG);
-	reg[REGARG]++;
-	curarg = align(curarg, nn->type, Aarg1, nil);
-	curarg = align(curarg, nn->type, Aarg2, nil);
-	maxargsafe = maxround(maxargsafe, cursafe+curarg);
-}
-
-void
-regaalloc(Node *n, Node *nn)
-{
-	curarg = align(curarg, nn->type, Aarg1, nil);
-	*n = *nn;
-	n->op = OINDREG;
-	n->reg = REGSP;
-	n->xoffset = curarg;
-	n->complex = 0;
-	n->addable = 20;
-	curarg = align(curarg, nn->type, Aarg2, nil);
-	maxargsafe = maxround(maxargsafe, cursafe+curarg);
-}
-
-void
-regind(Node *n, Node *nn)
-{
-
-	if(n->op != OREGISTER) {
-		diag(n, "regind not OREGISTER");
-		return;
-	}
-	n->op = OINDREG;
-	n->type = nn->type;
-}
-
-void
-naddr(Node *n, Addr *a)
-{
-	int32 v;
-
-	a->type = D_NONE;
-	if(n == Z)
-		return;
-	switch(n->op) {
-	default:
-	bad:
-		diag(n, "bad in naddr: %O %D", n->op, a);
-		break;
-
-	case OREGISTER:
-		a->type = n->reg;
-		a->sym = nil;
-		break;
-
-	case OEXREG:
-		a->type = D_INDIR + D_TLS;
-		a->offset = n->reg - 1;
-		break;
-
-	case OIND:
-		naddr(n->left, a);
-		if(a->type >= D_AX && a->type <= D_DI)
-			a->type += D_INDIR;
-		else
-		if(a->type == D_CONST)
-			a->type = D_NONE+D_INDIR;
-		else
-		if(a->type == D_ADDR) {
-			a->type = a->index;
-			a->index = D_NONE;
-		} else
-			goto bad;
-		break;
-
-	case OINDEX:
-		a->type = idx.ptr;
-		if(n->left->op == OADDR || n->left->op == OCONST)
-			naddr(n->left, a);
-		if(a->type >= D_AX && a->type <= D_DI)
-			a->type += D_INDIR;
-		else
-		if(a->type == D_CONST)
-			a->type = D_NONE+D_INDIR;
-		else
-		if(a->type == D_ADDR) {
-			a->type = a->index;
-			a->index = D_NONE;
-		} else
-			goto bad;
-		a->index = idx.reg;
-		a->scale = n->scale;
-		a->offset += n->xoffset;
-		break;
-
-	case OINDREG:
-		a->type = n->reg+D_INDIR;
-		a->sym = nil;
-		a->offset = n->xoffset;
-		break;
-
-	case ONAME:
-		a->etype = n->etype;
-		a->type = D_STATIC;
-		a->sym = linksym(n->sym);
-		a->offset = n->xoffset;
-		if(n->class == CSTATIC)
-			break;
-		if(n->class == CEXTERN || n->class == CGLOBL) {
-			a->type = D_EXTERN;
-			break;
-		}
-		if(n->class == CAUTO) {
-			a->type = D_AUTO;
-			break;
-		}
-		if(n->class == CPARAM) {
-			a->type = D_PARAM;
-			break;
-		}
-		goto bad;
-
-	case OCONST:
-		if(typefd[n->type->etype]) {
-			a->type = D_FCONST;
-			a->u.dval = n->fconst;
-			break;
-		}
-		a->sym = nil;
-		a->type = D_CONST;
-		a->offset = n->vconst;
-		break;
-
-	case OADDR:
-		naddr(n->left, a);
-		if(a->type >= D_INDIR) {
-			a->type -= D_INDIR;
-			break;
-		}
-		if(a->type == D_EXTERN || a->type == D_STATIC ||
-		   a->type == D_AUTO || a->type == D_PARAM)
-			if(a->index == D_NONE) {
-				a->index = a->type;
-				a->type = D_ADDR;
-				break;
-			}
-		goto bad;
-
-	case OADD:
-		if(n->right->op == OCONST) {
-			v = n->right->vconst;
-			naddr(n->left, a);
-		} else
-		if(n->left->op == OCONST) {
-			v = n->left->vconst;
-			naddr(n->right, a);
-		} else
-			goto bad;
-		a->offset += v;
-		break;
-
-	}
-}
-
-#define	CASE(a,b)	((a<<8)|(b<<0))
-
-void
-gmove(Node *f, Node *t)
-{
-	int ft, tt, a;
-	Node nod, nod1;
-	Prog *p1;
-
-	ft = f->type->etype;
-	tt = t->type->etype;
-	if(debug['M'])
-		print("gop: %O %O[%s],%O[%s]\n", OAS,
-			f->op, tnames[ft], t->op, tnames[tt]);
-	if(typefd[ft] && f->op == OCONST) {
-		if(f->fconst == 0)
-			gins(AFLDZ, Z, Z);
-		else
-		if(f->fconst == 1)
-			gins(AFLD1, Z, Z);
-		else
-			gins(AFMOVD, f, &fregnode0);
-		gmove(&fregnode0, t);
-		return;
-	}
-/*
- * load
- */
-	if(f->op == ONAME || f->op == OINDREG ||
-	   f->op == OIND || f->op == OINDEX)
-	switch(ft) {
-	case TCHAR:
-		a = AMOVBLSX;
-		goto ld;
-	case TUCHAR:
-		a = AMOVBLZX;
-		goto ld;
-	case TSHORT:
-		if(typefd[tt]) {
-			gins(AFMOVW, f, &fregnode0);
-			gmove(&fregnode0, t);
-			return;
-		}
-		a = AMOVWLSX;
-		goto ld;
-	case TUSHORT:
-		a = AMOVWLZX;
-		goto ld;
-	case TINT:
-	case TUINT:
-	case TLONG:
-	case TULONG:
-	case TIND:
-		if(typefd[tt]) {
-			gins(AFMOVL, f, &fregnode0);
-			gmove(&fregnode0, t);
-			return;
-		}
-		a = AMOVL;
-
-	ld:
-		regalloc(&nod, f, t);
-		nod.type = types[TLONG];
-		gins(a, f, &nod);
-		gmove(&nod, t);
-		regfree(&nod);
-		return;
-
-	case TFLOAT:
-		gins(AFMOVF, f, t);
-		return;
-	case TDOUBLE:
-		gins(AFMOVD, f, t);
-		return;
-	case TVLONG:
-		gins(AFMOVV, f, t);
-		return;
-	}
-
-/*
- * store
- */
-	if(t->op == ONAME || t->op == OINDREG ||
-	   t->op == OIND || t->op == OINDEX)
-	switch(tt) {
-	case TCHAR:
-	case TUCHAR:
-		a = AMOVB;	goto st;
-	case TSHORT:
-	case TUSHORT:
-		a = AMOVW;	goto st;
-	case TINT:
-	case TUINT:
-	case TLONG:
-	case TULONG:
-	case TIND:
-		a = AMOVL;	goto st;
-
-	st:
-		if(f->op == OCONST) {
-			gins(a, f, t);
-			return;
-		}
-		regalloc(&nod, t, f);
-		gmove(f, &nod);
-		gins(a, &nod, t);
-		regfree(&nod);
-		return;
-
-	case TFLOAT:
-		gins(AFMOVFP, f, t);
-		return;
-	case TDOUBLE:
-		gins(AFMOVDP, f, t);
-		return;
-	case TVLONG:
-		gins(AFMOVVP, f, t);
-		return;
-	}
-
-/*
- * convert
- */
-	switch(CASE(ft,tt)) {
-	default:
-/*
- * integer to integer
- ********
-		a = AGOK;	break;
-
-	case CASE(	TCHAR,	TCHAR):
-	case CASE(	TUCHAR,	TCHAR):
-	case CASE(	TSHORT,	TCHAR):
-	case CASE(	TUSHORT,TCHAR):
-	case CASE(	TINT,	TCHAR):
-	case CASE(	TUINT,	TCHAR):
-	case CASE(	TLONG,	TCHAR):
-	case CASE(	TULONG,	TCHAR):
-	case CASE(	TIND,	TCHAR):
-
-	case CASE(	TCHAR,	TUCHAR):
-	case CASE(	TUCHAR,	TUCHAR):
-	case CASE(	TSHORT,	TUCHAR):
-	case CASE(	TUSHORT,TUCHAR):
-	case CASE(	TINT,	TUCHAR):
-	case CASE(	TUINT,	TUCHAR):
-	case CASE(	TLONG,	TUCHAR):
-	case CASE(	TULONG,	TUCHAR):
-	case CASE(	TIND,	TUCHAR):
-
-	case CASE(	TSHORT,	TSHORT):
-	case CASE(	TUSHORT,TSHORT):
-	case CASE(	TINT,	TSHORT):
-	case CASE(	TUINT,	TSHORT):
-	case CASE(	TLONG,	TSHORT):
-	case CASE(	TULONG,	TSHORT):
-	case CASE(	TIND,	TSHORT):
-
-	case CASE(	TSHORT,	TUSHORT):
-	case CASE(	TUSHORT,TUSHORT):
-	case CASE(	TINT,	TUSHORT):
-	case CASE(	TUINT,	TUSHORT):
-	case CASE(	TLONG,	TUSHORT):
-	case CASE(	TULONG,	TUSHORT):
-	case CASE(	TIND,	TUSHORT):
-
-	case CASE(	TINT,	TINT):
-	case CASE(	TUINT,	TINT):
-	case CASE(	TLONG,	TINT):
-	case CASE(	TULONG,	TINT):
-	case CASE(	TIND,	TINT):
-
-	case CASE(	TINT,	TUINT):
-	case CASE(	TUINT,	TUINT):
-	case CASE(	TLONG,	TUINT):
-	case CASE(	TULONG,	TUINT):
-	case CASE(	TIND,	TUINT):
-
-	case CASE(	TINT,	TLONG):
-	case CASE(	TUINT,	TLONG):
-	case CASE(	TLONG,	TLONG):
-	case CASE(	TULONG,	TLONG):
-	case CASE(	TIND,	TLONG):
-
-	case CASE(	TINT,	TULONG):
-	case CASE(	TUINT,	TULONG):
-	case CASE(	TLONG,	TULONG):
-	case CASE(	TULONG,	TULONG):
-	case CASE(	TIND,	TULONG):
-
-	case CASE(	TINT,	TIND):
-	case CASE(	TUINT,	TIND):
-	case CASE(	TLONG,	TIND):
-	case CASE(	TULONG,	TIND):
-	case CASE(	TIND,	TIND):
- *****/
-		a = AMOVL;
-		break;
-
-	case CASE(	TSHORT,	TINT):
-	case CASE(	TSHORT,	TUINT):
-	case CASE(	TSHORT,	TLONG):
-	case CASE(	TSHORT,	TULONG):
-	case CASE(	TSHORT,	TIND):
-		a = AMOVWLSX;
-		if(f->op == OCONST) {
-			f->vconst &= 0xffff;
-			if(f->vconst & 0x8000)
-				f->vconst |= 0xffff0000;
-			a = AMOVL;
-		}
-		break;
-
-	case CASE(	TUSHORT,TINT):
-	case CASE(	TUSHORT,TUINT):
-	case CASE(	TUSHORT,TLONG):
-	case CASE(	TUSHORT,TULONG):
-	case CASE(	TUSHORT,TIND):
-		a = AMOVWLZX;
-		if(f->op == OCONST) {
-			f->vconst &= 0xffff;
-			a = AMOVL;
-		}
-		break;
-
-	case CASE(	TCHAR,	TSHORT):
-	case CASE(	TCHAR,	TUSHORT):
-	case CASE(	TCHAR,	TINT):
-	case CASE(	TCHAR,	TUINT):
-	case CASE(	TCHAR,	TLONG):
-	case CASE(	TCHAR,	TULONG):
-	case CASE(	TCHAR,	TIND):
-		a = AMOVBLSX;
-		if(f->op == OCONST) {
-			f->vconst &= 0xff;
-			if(f->vconst & 0x80)
-				f->vconst |= 0xffffff00;
-			a = AMOVL;
-		}
-		break;
-
-	case CASE(	TUCHAR,	TSHORT):
-	case CASE(	TUCHAR,	TUSHORT):
-	case CASE(	TUCHAR,	TINT):
-	case CASE(	TUCHAR,	TUINT):
-	case CASE(	TUCHAR,	TLONG):
-	case CASE(	TUCHAR,	TULONG):
-	case CASE(	TUCHAR,	TIND):
-		a = AMOVBLZX;
-		if(f->op == OCONST) {
-			f->vconst &= 0xff;
-			a = AMOVL;
-		}
-		break;
-
-/*
- * float to fix
- */
-	case CASE(	TFLOAT,	TCHAR):
-	case CASE(	TFLOAT,	TUCHAR):
-	case CASE(	TFLOAT,	TSHORT):
-	case CASE(	TFLOAT,	TUSHORT):
-	case CASE(	TFLOAT,	TINT):
-	case CASE(	TFLOAT,	TUINT):
-	case CASE(	TFLOAT,	TLONG):
-	case CASE(	TFLOAT,	TULONG):
-	case CASE(	TFLOAT,	TIND):
-
-	case CASE(	TDOUBLE,TCHAR):
-	case CASE(	TDOUBLE,TUCHAR):
-	case CASE(	TDOUBLE,TSHORT):
-	case CASE(	TDOUBLE,TUSHORT):
-	case CASE(	TDOUBLE,TINT):
-	case CASE(	TDOUBLE,TUINT):
-	case CASE(	TDOUBLE,TLONG):
-	case CASE(	TDOUBLE,TULONG):
-	case CASE(	TDOUBLE,TIND):
-
-	case CASE(	TVLONG,	TCHAR):
-	case CASE(	TVLONG,	TUCHAR):
-	case CASE(	TVLONG,	TSHORT):
-	case CASE(	TVLONG,	TUSHORT):
-	case CASE(	TVLONG,	TINT):
-	case CASE(	TVLONG,	TUINT):
-	case CASE(	TVLONG,	TLONG):
-	case CASE(	TVLONG,	TULONG):
-	case CASE(	TVLONG,	TIND):
-		if(fproundflg) {
-			regsalloc(&nod, &regnode);
-			gins(AFMOVLP, f, &nod);
-			gmove(&nod, t);
-			return;
-		}
-		regsalloc(&nod, &regnode);
-		regsalloc(&nod1, &regnode);
-		gins(AFSTCW, Z, &nod1);
-		nod1.xoffset += 2;
-		gins(AMOVW, nodconst(0xf7f), &nod1);
-		gins(AFLDCW, &nod1, Z);
-		gins(AFMOVLP, f, &nod);
-		nod1.xoffset -= 2;
-		gins(AFLDCW, &nod1, Z);
-		gmove(&nod, t);
-		return;
-
-/*
- * ulong to float
- */
-	case CASE(	TULONG,	TDOUBLE):
-	case CASE(	TULONG,	TVLONG):
-	case CASE(	TULONG,	TFLOAT):
-	case CASE(	TUINT,	TDOUBLE):
-	case CASE(	TUINT,	TVLONG):
-	case CASE(	TUINT,	TFLOAT):
-		regalloc(&nod, f, f);
-		gmove(f, &nod);
-		regsalloc(&nod1, &regnode);
-		gmove(&nod, &nod1);
-		gins(AFMOVL, &nod1, &fregnode0);
-		gins(ACMPL, &nod, nodconst(0));
-		gins(AJGE, Z, Z);
-		p1 = p;
-		gins(AFADDD, nodfconst(4294967296.), &fregnode0);
-		patch(p1, pc);
-		regfree(&nod);
-		return;
-
-/*
- * fix to float
- */
-	case CASE(	TCHAR,	TFLOAT):
-	case CASE(	TUCHAR,	TFLOAT):
-	case CASE(	TSHORT,	TFLOAT):
-	case CASE(	TUSHORT,TFLOAT):
-	case CASE(	TINT,	TFLOAT):
-	case CASE(	TLONG,	TFLOAT):
-	case CASE(	TIND,	TFLOAT):
-
-	case CASE(	TCHAR,	TDOUBLE):
-	case CASE(	TUCHAR,	TDOUBLE):
-	case CASE(	TSHORT,	TDOUBLE):
-	case CASE(	TUSHORT,TDOUBLE):
-	case CASE(	TINT,	TDOUBLE):
-	case CASE(	TLONG,	TDOUBLE):
-	case CASE(	TIND,	TDOUBLE):
-
-	case CASE(	TCHAR,	TVLONG):
-	case CASE(	TUCHAR,	TVLONG):
-	case CASE(	TSHORT,	TVLONG):
-	case CASE(	TUSHORT,TVLONG):
-	case CASE(	TINT,	TVLONG):
-	case CASE(	TLONG,	TVLONG):
-	case CASE(	TIND,	TVLONG):
-		regsalloc(&nod, &regnode);
-		gmove(f, &nod);
-		gins(AFMOVL, &nod, &fregnode0);
-		return;
-
-/*
- * float to float
- */
-	case CASE(	TFLOAT,	TFLOAT):
-	case CASE(	TDOUBLE,TFLOAT):
-	case CASE(	TVLONG,	TFLOAT):
-
-	case CASE(	TFLOAT,	TDOUBLE):
-	case CASE(	TDOUBLE,TDOUBLE):
-	case CASE(	TVLONG,	TDOUBLE):
-
-	case CASE(	TFLOAT,	TVLONG):
-	case CASE(	TDOUBLE,TVLONG):
-	case CASE(	TVLONG,	TVLONG):
-		a = AFMOVD;	break;
-	}
-	if(a == AMOVL || a == AFMOVD)
-	if(samaddr(f, t))
-		return;
-	gins(a, f, t);
-}
-
-void
-doindex(Node *n)
-{
-	Node nod, nod1;
-	int32 v;
-
-if(debug['Y'])
-prtree(n, "index");
-
-if(n->left->complex >= FNX)
-print("botch in doindex\n");
-
-	regalloc(&nod, &regnode, Z);
-	v = constnode.vconst;
-	cgen(n->right, &nod);
-	idx.ptr = D_NONE;
-	if(n->left->op == OCONST)
-		idx.ptr = D_CONST;
-	else if(n->left->op == OREGISTER)
-		idx.ptr = n->left->reg;
-	else if(n->left->op != OADDR) {
-		reg[D_BP]++;	// can't be used as a base
-		regalloc(&nod1, &regnode, Z);
-		cgen(n->left, &nod1);
-		idx.ptr = nod1.reg;
-		regfree(&nod1);
-		reg[D_BP]--;
-	}
-	idx.reg = nod.reg;
-	regfree(&nod);
-	constnode.vconst = v;
-}
-
-void
-gins(int a, Node *f, Node *t)
-{
-
-	if(f != Z && f->op == OINDEX)
-		doindex(f);
-	if(t != Z && t->op == OINDEX)
-		doindex(t);
-	nextpc();
-	p->as = a;
-	if(f != Z)
-		naddr(f, &p->from);
-	if(t != Z)
-		naddr(t, &p->to);
-	if(debug['g'])
-		print("%P\n", p);
-}
-
-void
-fgopcode(int o, Node *f, Node *t, int pop, int rev)
-{
-	int a, et;
-	Node nod;
-
-	et = TLONG;
-	if(f != Z && f->type != T)
-		et = f->type->etype;
-	if(!typefd[et]) {
-		diag(f, "fop: integer %O", o);
-		return;
-	}
-	if(debug['M']) {
-		if(t != Z && t->type != T)
-			print("gop: %O %O-%s Z\n", o, f->op, tnames[et]);
-		else
-			print("gop: %O %O-%s %O-%s\n", o,
-				f->op, tnames[et], t->op, tnames[t->type->etype]);
-	}
-	a = AGOK;
-	switch(o) {
-
-	case OASADD:
-	case OADD:
-		if(et == TFLOAT)
-			a = AFADDF;
-		else
-		if(et == TDOUBLE || et == TVLONG) {
-			a = AFADDD;
-			if(pop)
-				a = AFADDDP;
-		}
-		break;
-
-	case OASSUB:
-	case OSUB:
-		if(et == TFLOAT) {
-			a = AFSUBF;
-			if(rev)
-				a = AFSUBRF;
-		} else
-		if(et == TDOUBLE || et == TVLONG) {
-			a = AFSUBD;
-			if(pop)
-				a = AFSUBDP;
-			if(rev) {
-				a = AFSUBRD;
-				if(pop)
-					a = AFSUBRDP;
-			}
-		}
-		break;
-
-	case OASMUL:
-	case OMUL:
-		if(et == TFLOAT)
-			a = AFMULF;
-		else
-		if(et == TDOUBLE || et == TVLONG) {
-			a = AFMULD;
-			if(pop)
-				a = AFMULDP;
-		}
-		break;
-
-	case OASMOD:
-	case OMOD:
-	case OASDIV:
-	case ODIV:
-		if(et == TFLOAT) {
-			a = AFDIVF;
-			if(rev)
-				a = AFDIVRF;
-		} else
-		if(et == TDOUBLE || et == TVLONG) {
-			a = AFDIVD;
-			if(pop)
-				a = AFDIVDP;
-			if(rev) {
-				a = AFDIVRD;
-				if(pop)
-					a = AFDIVRDP;
-			}
-		}
-		break;
-
-	case OEQ:
-	case ONE:
-	case OLT:
-	case OLE:
-	case OGE:
-	case OGT:
-		pop += rev;
-		if(et == TFLOAT) {
-			a = AFCOMF;
-			if(pop) {
-				a = AFCOMFP;
-				if(pop > 1)
-					a = AGOK;
-			}
-		} else
-		if(et == TDOUBLE || et == TVLONG) {
-			a = AFCOMF;
-			if(pop) {
-				a = AFCOMDP;
-				if(pop > 1)
-					a = AFCOMDPP;
-			}
-		}
-		gins(a, f, t);
-		regalloc(&nod, &regnode, Z);
-		if(nod.reg != D_AX) {
-			regfree(&nod);
-			nod.reg = D_AX;
-			gins(APUSHL, &nod, Z);
-			gins(AWAIT, Z, Z);
-			gins(AFSTSW, Z, &nod);
-			gins(ASAHF, Z, Z);
-			gins(APOPL, Z, &nod);
-		} else {
-			gins(AWAIT, Z, Z);
-			gins(AFSTSW, Z, &nod);
-			gins(ASAHF, Z, Z);
-			regfree(&nod);
-		}
-		switch(o) {
-		case OEQ:	a = AJEQ; break;
-		case ONE:	a = AJNE; break;
-		case OLT:	a = AJCS; break;
-		case OLE:	a = AJLS; break;
-		case OGE:	a = AJCC; break;
-		case OGT:	a = AJHI; break;
-		}
-		gins(a, Z, Z);
-		return;
-	}
-	if(a == AGOK)
-		diag(Z, "bad in gopcode %O", o);
-	gins(a, f, t);
-}
-
-void
-gopcode(int o, Type *ty, Node *f, Node *t)
-{
-	int a, et;
-
-	et = TLONG;
-	if(ty != T)
-		et = ty->etype;
-	if(typefd[et] && o != OADDR && o != OFUNC) {
-		diag(f, "gop: float %O", o);
-		return;
-	}
-	if(debug['M']) {
-		if(f != Z && f->type != T)
-			print("gop: %O %O[%s],", o, f->op, tnames[et]);
-		else
-			print("gop: %O Z,", o);
-		if(t != Z && t->type != T)
-			print("%O[%s]\n", t->op, tnames[t->type->etype]);
-		else
-			print("Z\n");
-	}
-	a = AGOK;
-	switch(o) {
-	case OCOM:
-		a = ANOTL;
-		if(et == TCHAR || et == TUCHAR)
-			a = ANOTB;
-		if(et == TSHORT || et == TUSHORT)
-			a = ANOTW;
-		break;
-
-	case ONEG:
-		a = ANEGL;
-		if(et == TCHAR || et == TUCHAR)
-			a = ANEGB;
-		if(et == TSHORT || et == TUSHORT)
-			a = ANEGW;
-		break;
-
-	case OADDR:
-		a = ALEAL;
-		break;
-
-	case OASADD:
-	case OADD:
-		a = AADDL;
-		if(et == TCHAR || et == TUCHAR)
-			a = AADDB;
-		if(et == TSHORT || et == TUSHORT)
-			a = AADDW;
-		break;
-
-	case OASSUB:
-	case OSUB:
-		a = ASUBL;
-		if(et == TCHAR || et == TUCHAR)
-			a = ASUBB;
-		if(et == TSHORT || et == TUSHORT)
-			a = ASUBW;
-		break;
-
-	case OASOR:
-	case OOR:
-		a = AORL;
-		if(et == TCHAR || et == TUCHAR)
-			a = AORB;
-		if(et == TSHORT || et == TUSHORT)
-			a = AORW;
-		break;
-
-	case OASAND:
-	case OAND:
-		a = AANDL;
-		if(et == TCHAR || et == TUCHAR)
-			a = AANDB;
-		if(et == TSHORT || et == TUSHORT)
-			a = AANDW;
-		break;
-
-	case OASXOR:
-	case OXOR:
-		a = AXORL;
-		if(et == TCHAR || et == TUCHAR)
-			a = AXORB;
-		if(et == TSHORT || et == TUSHORT)
-			a = AXORW;
-		break;
-
-	case OASLSHR:
-	case OLSHR:
-		a = ASHRL;
-		if(et == TCHAR || et == TUCHAR)
-			a = ASHRB;
-		if(et == TSHORT || et == TUSHORT)
-			a = ASHRW;
-		break;
-
-	case OASASHR:
-	case OASHR:
-		a = ASARL;
-		if(et == TCHAR || et == TUCHAR)
-			a = ASARB;
-		if(et == TSHORT || et == TUSHORT)
-			a = ASARW;
-		break;
-
-	case OASASHL:
-	case OASHL:
-		a = ASALL;
-		if(et == TCHAR || et == TUCHAR)
-			a = ASALB;
-		if(et == TSHORT || et == TUSHORT)
-			a = ASALW;
-		break;
-
-	case OROTL:
-		a = AROLL;
-		if(et == TCHAR || et == TUCHAR)
-			a = AROLB;
-		if(et == TSHORT || et == TUSHORT)
-			a = AROLW;
-		break;
-
-	case OFUNC:
-		a = ACALL;
-		break;
-
-	case OASMUL:
-	case OMUL:
-		if(f->op == OREGISTER && t != Z && isreg(t, D_AX) && reg[D_DX] == 0)
-			t = Z;
-		a = AIMULL;
-		break;
-
-	case OASMOD:
-	case OMOD:
-	case OASDIV:
-	case ODIV:
-		a = AIDIVL;
-		break;
-
-	case OASLMUL:
-	case OLMUL:
-		a = AMULL;
-		break;
-
-	case OASLMOD:
-	case OLMOD:
-	case OASLDIV:
-	case OLDIV:
-		a = ADIVL;
-		break;
-
-	case OEQ:
-	case ONE:
-	case OLT:
-	case OLE:
-	case OGE:
-	case OGT:
-	case OLO:
-	case OLS:
-	case OHS:
-	case OHI:
-		a = ACMPL;
-		if(et == TCHAR || et == TUCHAR)
-			a = ACMPB;
-		if(et == TSHORT || et == TUSHORT)
-			a = ACMPW;
-		gins(a, f, t);
-		switch(o) {
-		case OEQ:	a = AJEQ; break;
-		case ONE:	a = AJNE; break;
-		case OLT:	a = AJLT; break;
-		case OLE:	a = AJLE; break;
-		case OGE:	a = AJGE; break;
-		case OGT:	a = AJGT; break;
-		case OLO:	a = AJCS; break;
-		case OLS:	a = AJLS; break;
-		case OHS:	a = AJCC; break;
-		case OHI:	a = AJHI; break;
-		}
-		gins(a, Z, Z);
-		return;
-	}
-	if(a == AGOK)
-		diag(Z, "bad in gopcode %O", o);
-	gins(a, f, t);
-}
-
-int
-samaddr(Node *f, Node *t)
-{
-
-	if(f->op != t->op)
-		return 0;
-	switch(f->op) {
-
-	case OREGISTER:
-		if(f->reg != t->reg)
-			break;
-		return 1;
-	}
-	return 0;
-}
-
-void
-gbranch(int o)
-{
-	int a;
-
-	a = AGOK;
-	switch(o) {
-	case ORETURN:
-		a = ARET;
-		break;
-	case OGOTO:
-		a = AJMP;
-		break;
-	}
-	nextpc();
-	if(a == AGOK) {
-		diag(Z, "bad in gbranch %O",  o);
-		nextpc();
-	}
-	p->as = a;
-}
-
-void
-patch(Prog *op, int32 pc)
-{
-	op->to.offset = pc;
-	op->to.type = D_BRANCH;
-	op->to.u.branch = nil;
-	op->pcond = nil;
-}
-
-void
-gpseudo(int a, Sym *s, Node *n)
-{
-
-	nextpc();
-	p->as = a;
-	p->from.type = D_EXTERN;
-	p->from.sym = linksym(s);
-
-	switch(a) {
-	case ATEXT:
-		p->from.scale = textflag;
-		textflag = 0;
-		break;
-	case AGLOBL:
-		p->from.scale = s->dataflag;
-		break;
-	}
-
-	if(s->class == CSTATIC)
-		p->from.type = D_STATIC;
-	naddr(n, &p->to);
-	if(a == ADATA || a == AGLOBL)
-		pc--;
-}
-
-void
-gpcdata(int index, int value)
-{
-	Node n1;
-	
-	n1 = *nodconst(index);
-	gins(APCDATA, &n1, nodconst(value));
-}
-
-void
-gprefetch(Node *n)
-{
-	Node n1;
-	
-	if(strcmp(getgo386(), "sse2") != 0) // assume no prefetch on old machines
-		return;
-
-	regalloc(&n1, n, Z);
-	gmove(n, &n1);
-	n1.op = OINDREG;
-	gins(APREFETCHNTA, &n1, Z);
-	regfree(&n1);
-}
-
-int
-sconst(Node *n)
-{
-	int32 v;
-
-	if(n->op == OCONST && !typefd[n->type->etype]) {
-		v = n->vconst;
-		if(v >= -32766L && v < 32766L)
-			return 1;
-	}
-	return 0;
-}
-
-int32
-exreg(Type *t)
-{
-	int32 o;
-
-	if(typechlp[t->etype]){
-		if(exregoffset >= 32)
-			return 0;
-		o = exregoffset;
-		exregoffset += 4;
-		return o+1;	// +1 to avoid 0 == failure; naddr case OEXREG will -1.
-	}
-
-	return 0;
-}
-
-schar	ewidth[NTYPE] =
-{
-	-1,		/*[TXXX]*/
-	SZ_CHAR,	/*[TCHAR]*/
-	SZ_CHAR,	/*[TUCHAR]*/
-	SZ_SHORT,	/*[TSHORT]*/
-	SZ_SHORT,	/*[TUSHORT]*/
-	SZ_INT,		/*[TINT]*/
-	SZ_INT,		/*[TUINT]*/
-	SZ_LONG,	/*[TLONG]*/
-	SZ_LONG,	/*[TULONG]*/
-	SZ_VLONG,	/*[TVLONG]*/
-	SZ_VLONG,	/*[TUVLONG]*/
-	SZ_FLOAT,	/*[TFLOAT]*/
-	SZ_DOUBLE,	/*[TDOUBLE]*/
-	SZ_IND,		/*[TIND]*/
-	0,		/*[TFUNC]*/
-	-1,		/*[TARRAY]*/
-	0,		/*[TVOID]*/
-	-1,		/*[TSTRUCT]*/
-	-1,		/*[TUNION]*/
-	SZ_INT,		/*[TENUM]*/
-};
-int32	ncast[NTYPE] =
-{
-	0,				/*[TXXX]*/
-	BCHAR|BUCHAR,			/*[TCHAR]*/
-	BCHAR|BUCHAR,			/*[TUCHAR]*/
-	BSHORT|BUSHORT,			/*[TSHORT]*/
-	BSHORT|BUSHORT,			/*[TUSHORT]*/
-	BINT|BUINT|BLONG|BULONG|BIND,	/*[TINT]*/
-	BINT|BUINT|BLONG|BULONG|BIND,	/*[TUINT]*/
-	BINT|BUINT|BLONG|BULONG|BIND,	/*[TLONG]*/
-	BINT|BUINT|BLONG|BULONG|BIND,	/*[TULONG]*/
-	BVLONG|BUVLONG,			/*[TVLONG]*/
-	BVLONG|BUVLONG,			/*[TUVLONG]*/
-	BFLOAT,				/*[TFLOAT]*/
-	BDOUBLE,			/*[TDOUBLE]*/
-	BLONG|BULONG|BIND,		/*[TIND]*/
-	0,				/*[TFUNC]*/
-	0,				/*[TARRAY]*/
-	0,				/*[TVOID]*/
-	BSTRUCT,			/*[TSTRUCT]*/
-	BUNION,				/*[TUNION]*/
-	0,				/*[TENUM]*/
-};