// Check for &a[i].
		if p.checkIndex(&sb, &sbCheck, arg, i) {
			continue
		}

		// Check for &x.
		if p.checkAddr(&sb, &sbCheck, arg, i) {
			continue
		}

		// Check for a[:].
		if p.checkSlice(&sb, &sbCheck, arg, i) {
			continue
		}

		fmt.Fprintf(&sb, "_cgo%d := %s; ", i, gofmtPos(arg, origArg.Pos()))
		fmt.Fprintf(&sbCheck, "_cgoCheckPointer(_cgo%d, nil); ", i)
	}

	if call.Deferred {