cmd/internal/gc, etc: remove canemitecode of Naddr

The argument is never consulted apart from passing it to recursive
calls.  So delete it.

Change-Id: Ia15eefb6385b3c99ea4def88f564f4e5a94c68ab
Reviewed-on: https://go-review.googlesource.com/7032Reviewed-by: Ian Lance Taylor <iant@golang.org>

src/cmd/5g/ggen.go

@@ -78,7 +78,7 @@ func zerorange(p *obj.Prog, frame int64, lo int64, hi int64, r0 *uint32) *obj.Pr
 		p.Reg = arm.REGSP
 		p = appendpp(p, obj.ADUFFZERO, obj.TYPE_NONE, 0, 0, obj.TYPE_MEM, 0, 0)
 		f := gc.Sysfunc("duffzero")
-		p.To = gc.Naddr(f, 1)
+		p.To = gc.Naddr(f)
 		gc.Afunclit(&p.To, f)
 		p.To.Offset = 4 * (128 - cnt/int64(gc.Widthptr))
 	} else {

src/cmd/5g/gsubr.go

@@ -846,10 +846,10 @@ func gins(as int, f *gc.Node, t *gc.Node) *obj.Prog {
 
 	var at obj.Addr
 	if f != nil {
-		af = gc.Naddr(f, 1)
+		af = gc.Naddr(f)
 	}
 	if t != nil {
-		at = gc.Naddr(t, 1)
+		at = gc.Naddr(t)
 	}
 	p := gc.Prog(as)
 	if f != nil {
@@ -870,7 +870,7 @@ func gins(as int, f *gc.Node, t *gc.Node) *obj.Prog {
 func raddr(n *gc.Node, p *obj.Prog) {
 	var a obj.Addr
 
-	a = gc.Naddr(n, 1)
+	a = gc.Naddr(n)
 	if a.Type != obj.TYPE_REG {
 		if n != nil {
 			gc.Fatal("bad in raddr: %v", gc.Oconv(int(n.Op), 0))
@@ -1306,7 +1306,7 @@ func sudoaddable(as int, n *gc.Node, a *obj.Addr, w *int) bool {
 		reg1 := &clean[cleani-2]
 		reg.Op = gc.OEMPTY
 		reg1.Op = gc.OEMPTY
-		*a = gc.Naddr(n, 1)
+		*a = gc.Naddr(n)
 		return true
 
 	case gc.ODOT,
@@ -1330,7 +1330,7 @@ func sudoaddable(as int, n *gc.Node, a *obj.Addr, w *int) bool {
 
 			n1.Type = n.Type
 			n1.Xoffset += oary[0]
-			*a = gc.Naddr(&n1, 1)
+			*a = gc.Naddr(&n1)
 			return true
 		}
 
@@ -1358,7 +1358,7 @@ func sudoaddable(as int, n *gc.Node, a *obj.Addr, w *int) bool {
 		a.Type = obj.TYPE_NONE
 		a.Name = obj.NAME_NONE
 		n1.Type = n.Type
-		*a = gc.Naddr(&n1, 1)
+		*a = gc.Naddr(&n1)
 		return true
 
 	case gc.OINDEX:

src/cmd/6g/gsubr.go

@@ -748,11 +748,11 @@ func gins(as int, f *gc.Node, t *gc.Node) *obj.Prog {
 
 	var af obj.Addr
 	if f != nil {
-		af = gc.Naddr(f, 1)
+		af = gc.Naddr(f)
 	}
 	var at obj.Addr
 	if t != nil {
-		at = gc.Naddr(t, 1)
+		at = gc.Naddr(t)
 	}
 	p := gc.Prog(as)
 	if f != nil {
@@ -1405,7 +1405,7 @@ func sudoaddable(as int, n *gc.Node, a *obj.Addr) bool {
 		reg1 := &clean[cleani-2]
 		reg.Op = gc.OEMPTY
 		reg1.Op = gc.OEMPTY
-		*a = gc.Naddr(n, 1)
+		*a = gc.Naddr(n)
 		return true
 
 	case gc.ODOT,
@@ -1429,7 +1429,7 @@ func sudoaddable(as int, n *gc.Node, a *obj.Addr) bool {
 
 			n1.Type = n.Type
 			n1.Xoffset += oary[0]
-			*a = gc.Naddr(&n1, 1)
+			*a = gc.Naddr(&n1)
 			return true
 		}
 
@@ -1457,7 +1457,7 @@ func sudoaddable(as int, n *gc.Node, a *obj.Addr) bool {
 		a.Type = obj.TYPE_NONE
 		a.Index = obj.TYPE_NONE
 		fixlargeoffset(&n1)
-		*a = gc.Naddr(&n1, 1)
+		*a = gc.Naddr(&n1)
 		return true
 
 	case gc.OINDEX:

src/cmd/8g/gsubr.go

@@ -1847,10 +1847,10 @@ func gins(as int, f *gc.Node, t *gc.Node) *obj.Prog {
 	var af obj.Addr
 	var at obj.Addr
 	if f != nil {
-		af = gc.Naddr(f, 1)
+		af = gc.Naddr(f)
 	}
 	if t != nil {
-		at = gc.Naddr(t, 1)
+		at = gc.Naddr(t)
 	}
 	p := gc.Prog(as)
 	if f != nil {

src/cmd/9g/ggen.go

@@ -76,7 +76,7 @@ func zerorange(p *obj.Prog, frame int64, lo int64, hi int64) *obj.Prog {
 		p.Reg = ppc64.REGSP
 		p = appendpp(p, obj.ADUFFZERO, obj.TYPE_NONE, 0, 0, obj.TYPE_MEM, 0, 0)
 		f := gc.Sysfunc("duffzero")
-		p.To = gc.Naddr(f, 1)
+		p.To = gc.Naddr(f)
 		gc.Afunclit(&p.To, f)
 		p.To.Offset = 4 * (128 - cnt/int64(gc.Widthptr))
 	} else {

src/cmd/9g/gsubr.go

@@ -700,10 +700,10 @@ func gins(as int, f *gc.Node, t *gc.Node) *obj.Prog {
 
 	at := obj.Addr(obj.Addr{})
 	if f != nil {
-		af = gc.Naddr(f, 1)
+		af = gc.Naddr(f)
 	}
 	if t != nil {
-		at = gc.Naddr(t, 1)
+		at = gc.Naddr(t)
 	}
 	p := (*obj.Prog)(gc.Prog(as))
 	if f != nil {

src/cmd/internal/gc/gsubr.go

@@ -273,7 +273,7 @@ func markautoused(p *obj.Prog) {
 	}
 }
 
-func Naddr(n *Node, canemitcode int) (a obj.Addr) {
+func Naddr(n *Node) (a obj.Addr) {
 	if n == nil {
 		return
 	}
@@ -337,7 +337,7 @@ func Naddr(n *Node, canemitcode int) (a obj.Addr) {
 		a.Offset = n.Xoffset
 
 	case OCFUNC:
-		a = Naddr(n.Left, canemitcode)
+		a = Naddr(n.Left)
 		a.Sym = Linksym(n.Left.Sym)
 
 	case ONAME:
@@ -421,7 +421,7 @@ func Naddr(n *Node, canemitcode int) (a obj.Addr) {
 		}
 
 	case OADDR:
-		a = Naddr(n.Left, canemitcode)
+		a = Naddr(n.Left)
 		a.Etype = uint8(Tptr)
 		if Thearch.Thechar != '5' && Thearch.Thechar != '9' { // TODO(rsc): Do this even for arm, ppc64.
 			a.Width = int64(Widthptr)
@@ -434,7 +434,7 @@ func Naddr(n *Node, canemitcode int) (a obj.Addr) {
 
 		// itable of interface value
 	case OITAB:
-		a = Naddr(n.Left, canemitcode)
+		a = Naddr(n.Left)
 
 		if a.Type == obj.TYPE_CONST && a.Offset == 0 {
 			break // itab(nil)
@@ -444,7 +444,7 @@ func Naddr(n *Node, canemitcode int) (a obj.Addr) {
 
 		// pointer in a string or slice
 	case OSPTR:
-		a = Naddr(n.Left, canemitcode)
+		a = Naddr(n.Left)
 
 		if a.Type == obj.TYPE_CONST && a.Offset == 0 {
 			break // ptr(nil)
@@ -455,7 +455,7 @@ func Naddr(n *Node, canemitcode int) (a obj.Addr) {
 
 		// len of string or slice
 	case OLEN:
-		a = Naddr(n.Left, canemitcode)
+		a = Naddr(n.Left)
 
 		if a.Type == obj.TYPE_CONST && a.Offset == 0 {
 			break // len(nil)
@@ -471,7 +471,7 @@ func Naddr(n *Node, canemitcode int) (a obj.Addr) {
 
 		// cap of string or slice
 	case OCAP:
-		a = Naddr(n.Left, canemitcode)
+		a = Naddr(n.Left)
 
 		if a.Type == obj.TYPE_CONST && a.Offset == 0 {
 			break // cap(nil)

src/cmd/internal/gc/plive.go

@@ -1054,8 +1054,8 @@ func newpcdataprog(prog *obj.Prog, index int32) *obj.Prog {
 	Nodconst(&to, Types[TINT32], int64(index))
 	pcdata := unlinkedprog(obj.APCDATA)
 	pcdata.Lineno = prog.Lineno
-	pcdata.From = Naddr(&from, 0)
-	pcdata.To = Naddr(&to, 0)
+	pcdata.From = Naddr(&from)
+	pcdata.To = Naddr(&to)
 	return pcdata
 }