default:
		base.Fatalf("unexpected call op: %v", call.Op())

	case ir.OCALLFUNC:
		call := call.(*ir.CallExpr)

		// If the callee is a named function, link to the original callee.
		if wrapped := ir.StaticCalleeName(call.Fun); wrapped != nil {
			wrapperFn.WrappedFunc = wrapped.Func
		}

		visit(&call.Fun)
		visitList(call.Args)

	case ir.OCALLINTER:
		call := call.(*ir.CallExpr)