cmd/gc: remove dead code

Change-Id: Ib46a42fc873066b1cc00368fe43648f08dce48bd
Reviewed-on: https://go-review.googlesource.com/4200Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>

src/cmd/gc/dcl.c

@@ -1435,7 +1435,7 @@ addmethod(Sym *sf, Type *t, int local, int nointerface)
 }
 
 void
-funccompile(Node *n, int isclosure)
+funccompile(Node *n)
 {
 	stksize = BADWIDTH;
 	maxarg = 0;
@@ -1449,20 +1449,6 @@ funccompile(Node *n, int isclosure)
 	// assign parameter offsets
 	checkwidth(n->type);
 	
-	// record offset to actual frame pointer.
-	// for closure, have to skip over leading pointers and PC slot.
-	// TODO(rsc): this is the old jit closure handling code.
-	// with the new closures, isclosure is always 0; delete this block.
-	nodfp->xoffset = 0;
-	if(isclosure) {
-		NodeList *l;
-		for(l=n->nname->ntype->list; l; l=l->next) {
-			nodfp->xoffset += widthptr;
-			if(l->n->left == N)	// found slot for PC
-				break;
-		}
-	}
-
 	if(curfn)
 		fatal("funccompile %S inside %S", n->nname->sym, curfn->nname->sym);
 

src/cmd/gc/go.h

@@ -1128,7 +1128,7 @@ void	dumpdcl(char *st);
 Node*	embedded(Sym *s, Pkg *pkg);
 Node*	fakethis(void);
 void	funcbody(Node *n);
-void	funccompile(Node *n, int isclosure);
+void	funccompile(Node *n);
 void	funchdr(Node *n);
 Type*	functype(Node *this, NodeList *in, NodeList *out);
 void	ifacedcl(Node *n);

src/cmd/gc/init.c

@@ -191,5 +191,5 @@ fninit(NodeList *n)
 	typecheck(&fn, Etop);
 	typechecklist(r, Etop);
 	curfn = nil;
-	funccompile(fn, 0);
+	funccompile(fn);
 }

src/cmd/gc/lex.c

@@ -459,7 +459,7 @@ gcmain(int argc, char *argv[])
 	// Phase 7: Compile top level functions.
 	for(l=xtop; l; l=l->next)
 		if(l->n->op == ODCLFUNC)
-			funccompile(l->n, 0);
+			funccompile(l->n);
 
 	if(nsavederrors+nerrors == 0)
 		fninit(xtop);

src/cmd/gc/subr.c

@@ -2628,7 +2628,7 @@ genwrapper(Type *rcvr, Type *method, Sym *newnam, int iface)
 	inl_nonlocal = 0;
 
 	curfn = nil;
-	funccompile(fn, 0);
+	funccompile(fn);
 }
 
 static Node*
@@ -2876,7 +2876,7 @@ genhash(Sym *sym, Type *t)
 	// an unexported field of type unsafe.Pointer.
 	old_safemode = safemode;
 	safemode = 0;
-	funccompile(fn, 0);
+	funccompile(fn);
 	safemode = old_safemode;
 }
 
@@ -3096,7 +3096,7 @@ geneq(Sym *sym, Type *t)
 	// an unexported field of type unsafe.Pointer.
 	old_safemode = safemode;
 	safemode = 0;
-	funccompile(fn, 0);
+	funccompile(fn);
 	safemode = old_safemode;
 }