a.apply(n, "Comment", nil, n.Comment)

	case *ast.FieldList:
		a.applyList(n, "List")

	// Expressions
	case *ast.BadExpr, *ast.Ident, *ast.BasicLit:
		// nothing to do

	case *ast.Ellipsis:
		a.apply(n, "Elt", nil, n.Elt)

	case *ast.FuncLit:
		a.apply(n, "Type", nil, n.Type)
		a.apply(n, "Body", nil, n.Body)

	case *ast.CompositeLit:
		a.apply(n, "Type", nil, n.Type)

		"fe80::1%",
		// IPv6 (without ellipsis) with too many fields for trailing embedded IPv4.
		"ffff:ffff:ffff:ffff:ffff:ffff:ffff:192.168.140.255",
		// IPv6 (with ellipsis) with too many fields for trailing embedded IPv4.
		"ffff::ffff:ffff:ffff:ffff:ffff:ffff:192.168.140.255",
		// IPv6 with invalid embedded IPv4.
		"::ffff:192.168.140.bad",
		// IPv6 with multiple ellipsis ::.
		"fe80::1::1",

		walkBeforeAfter(&n.Tag, before, after)
	case *ast.FieldList:
		for _, field := range n.List {
			walkBeforeAfter(field, before, after)
		}
	case *ast.BadExpr:
	case *ast.Ident:
	case *ast.Ellipsis:
		walkBeforeAfter(&n.Elt, before, after)
	case *ast.BasicLit:
	case *ast.FuncLit:
		walkBeforeAfter(&n.Type, before, after)
		walkBeforeAfter(&n.Body, before, after)
	case *ast.CompositeLit:

  dense->strides.resize(dense->dims);
  dense->begin_mask = 0;
  dense->end_mask = 0;
  dense->shrink_axis_mask = 0;

  // Count number of new_axis after ellipsis. This helps in calculating the
  // number of dimensions ellipsis represents in the sparse spec.
  bool ellipsis_seen = false;
  int num_new_axis_after_ellipsis = 0;
  for (int sparse_index = 0; sparse_index < sparse.dims; ++sparse_index) {

		argnum := 0
		for _, fld := range list {
			t := pass.TypesInfo.Types[fld.Type].Type

			// Work around https://golang.org/issue/28277.
			if t == nil {
				if ell, ok := fld.Type.(*ast.Ellipsis); ok {
					t = types.NewSlice(pass.TypesInfo.Types[ell.Elt].Type)
				}
			}

			align := int(arch.sizes.Alignof(t))
			size := int(arch.sizes.Sizeof(t))
			offset += -offset & (align - 1)

	x.typ = Typ[Invalid]

	switch e := e.(type) {
	case *ast.BadExpr:
		goto Error // error was reported before

	case *ast.Ident:
		check.ident(x, e, nil, false)

	case *ast.Ellipsis:
		// ellipses are handled explicitly where they are legal
		// (array composite literals and parameter lists)
		check.error(e, BadDotDotDotSyntax, "invalid use of '...'")
		goto Error

	case *ast.BasicLit:

		case '.':
			// fractions starting with a '.' are handled by outer switch
			tok = token.PERIOD
			if s.ch == '.' && s.peek() == '.' {
				s.next()
				s.next() // consume last '.'
				tok = token.ELLIPSIS
			}
		case ',':
			tok = token.COMMA
		case ';':
			tok = token.SEMICOLON
			lit = ";"
		case '(':
			tok = token.LPAREN
		case ')':
			insertSemi = true
			tok = token.RPAREN

// null pointer literal (i.e. NULL or any 0-valued compile-time
// integral constant).
#ifdef GTEST_ELLIPSIS_NEEDS_POD_
// We lose support for NULL detection where the compiler doesn't like
// passing non-POD classes through ellipsis (...).
# define GTEST_IS_NULL_LITERAL_(x) false
#else
# define GTEST_IS_NULL_LITERAL_(x) \
    (sizeof(::testing::internal::IsNullLiteralHelper(x)) == 1)
#endif  // GTEST_ELLIPSIS_NEEDS_POD_

// null pointer literal (i.e. NULL or any 0-valued compile-time
// integral constant).
#ifdef GTEST_ELLIPSIS_NEEDS_POD_
// We lose support for NULL detection where the compiler doesn't like
// passing non-POD classes through ellipsis (...).
# define GTEST_IS_NULL_LITERAL_(x) false
#else
# define GTEST_IS_NULL_LITERAL_(x) \
    (sizeof(::testing::internal::IsNullLiteralHelper(x)) == 1)
#endif  // GTEST_ELLIPSIS_NEEDS_POD_

// CHECK-SAME: %[[INPUT:[a-z0-9]+]]: tensor<2x4x8x16x32x64xf32>
func.func @strided_slice_ellipsis_mask(%input: tensor<2x4x8x16x32x64xf32>) {
  // For StridedSlice input[1, ..., 8:, :10, 2:6:2]
  // The ellipsis mask is applied to dim #1, #2, i.e, we get canonicalized
  // slice input[1, :, :, 8:, :10, 2:6:2]

  // The start, limit indices and strides attributes of mhlo.slice would
  // reflect the canonicalized slice.