diff --git a/src/cmd/compile/internal/inline/inl.go b/src/cmd/compile/internal/inline/inl.go
index 1d049298d7..1941dc44bc 100644
--- a/src/cmd/compile/internal/inline/inl.go
+++ b/src/cmd/compile/internal/inline/inl.go
@@ -506,7 +506,10 @@ func inlcopy(n ir.Node) ir.Node {
 			newfn.Nname = ir.NewNameAt(oldfn.Nname.Pos(), oldfn.Nname.Sym())
 			// XXX OK to share fn.Type() ??
 			newfn.Nname.SetType(oldfn.Nname.Type())
-			newfn.Nname.Ntype = inlcopy(oldfn.Nname.Ntype).(ir.Ntype)
+			// Ntype can be nil for -G=3 mode.
+			if oldfn.Nname.Ntype != nil {
+				newfn.Nname.Ntype = inlcopy(oldfn.Nname.Ntype).(ir.Ntype)
+			}
 			newfn.Body = inlcopylist(oldfn.Body)
 			// Make shallow copy of the Dcl and ClosureVar slices
 			newfn.Dcl = append([]*ir.Name(nil), oldfn.Dcl...)
@@ -1213,7 +1216,10 @@ func (subst *inlsubst) closure(n *ir.ClosureExpr) ir.Node {
 	newfn.SetIsHiddenClosure(true)
 	newfn.Nname = ir.NewNameAt(n.Pos(), ir.BlankNode.Sym())
 	newfn.Nname.Func = newfn
-	newfn.Nname.Ntype = subst.node(oldfn.Nname.Ntype).(ir.Ntype)
+	// Ntype can be nil for -G=3 mode.
+	if oldfn.Nname.Ntype != nil {
+		newfn.Nname.Ntype = subst.node(oldfn.Nname.Ntype).(ir.Ntype)
+	}
 	newfn.Nname.Defn = newfn
 
 	m.(*ir.ClosureExpr).Func = newfn
diff --git a/src/cmd/compile/internal/noder/expr.go b/src/cmd/compile/internal/noder/expr.go
index fc97df7197..b2c2616b35 100644
--- a/src/cmd/compile/internal/noder/expr.go
+++ b/src/cmd/compile/internal/noder/expr.go
@@ -360,8 +360,6 @@ func (g *irgen) funcLit(typ2 types2.Type, expr *syntax.FuncLit) ir.Node {
 	typ := g.typ(typ2)
 	fn.Nname.Func = fn
 	fn.Nname.Defn = fn
-	// Set Ntype for now to be compatible with later parts of compile, remove later.
-	fn.Nname.Ntype = ir.TypeNode(typ)
 	typed(typ, fn.Nname)
 	fn.SetTypecheck(1)
 
diff --git a/src/cmd/compile/internal/noder/object.go b/src/cmd/compile/internal/noder/object.go
index 6c8ed4af97..82cce1ace0 100644
--- a/src/cmd/compile/internal/noder/object.go
+++ b/src/cmd/compile/internal/noder/object.go
@@ -147,9 +147,6 @@ func (g *irgen) objFinish(name *ir.Name, class ir.Class, typ *types.Type) {
 		sym.SetFunc(true)
 	}
 
-	// We already know name's type, but typecheck is really eager to try
-	// recomputing it later. This appears to prevent that at least.
-	name.Ntype = ir.TypeNode(typ)
 	name.SetTypecheck(1)
 	name.SetWalkdef(1)
 
diff --git a/src/cmd/compile/internal/noder/stencil.go b/src/cmd/compile/internal/noder/stencil.go
index 0d84db9993..329c80098a 100644
--- a/src/cmd/compile/internal/noder/stencil.go
+++ b/src/cmd/compile/internal/noder/stencil.go
@@ -298,7 +298,6 @@ func (g *irgen) genericSubst(newsym *types.Sym, nameNode *ir.Name, targs []ir.No
 		subst.fields(ir.PPARAM, append(oldt.Recvs().FieldSlice(), oldt.Params().FieldSlice()...), newf.Dcl),
 		subst.fields(ir.PPARAMOUT, oldt.Results().FieldSlice(), newf.Dcl))
 
-	newf.Nname.Ntype = ir.TypeNode(newt)
 	newf.Nname.SetType(newt)
 	ir.MarkFunc(newf.Nname)
 	newf.SetTypecheck(1)
@@ -497,8 +496,7 @@ func (subst *subster) node(n ir.Node) ir.Node {
 
 		case ir.OCLOSURE:
 			x := x.(*ir.ClosureExpr)
-			// Need to save/duplicate x.Func.Nname,
-			// x.Func.Nname.Ntype, x.Func.Dcl, x.Func.ClosureVars, and
+			// Need to duplicate x.Func.Nname, x.Func.Dcl, x.Func.ClosureVars, and
 			// x.Func.Body.
 			oldfn := x.Func
 			newfn := ir.NewFunc(oldfn.Pos())
@@ -522,8 +520,6 @@ func (subst *subster) node(n ir.Node) ir.Node {
 			newfn.Dcl = subst.namelist(oldfn.Dcl)
 			newfn.ClosureVars = subst.namelist(oldfn.ClosureVars)
 
-			// Set Ntype for now to be compatible with later parts of compiler
-			newfn.Nname.Ntype = subst.node(oldfn.Nname.Ntype).(ir.Ntype)
 			typed(subst.typ(oldfn.Nname.Type()), newfn.Nname)
 			typed(newfn.Nname.Type(), m)
 			newfn.SetTypecheck(1)