diff --git a/sycl/include/sycl/detail/generic_type_traits.hpp b/sycl/include/sycl/detail/generic_type_traits.hpp
index 6adad81f47457..40cfdd39d4f80 100644
--- a/sycl/include/sycl/detail/generic_type_traits.hpp
+++ b/sycl/include/sycl/detail/generic_type_traits.hpp
@@ -128,17 +128,6 @@ using is_intn = is_contained<T, gtl::vector_signed_int_list>;
 
 template <typename T> using is_genint = is_contained<T, gtl::signed_int_list>;
 
-template <typename T>
-using is_ulongn = is_contained<T, gtl::vector_unsigned_long_list>;
-
-template <typename T>
-using is_ugenlong = is_contained<T, gtl::unsigned_long_list>;
-
-template <typename T>
-using is_longn = is_contained<T, gtl::vector_signed_long_list>;
-
-template <typename T> using is_genlong = is_contained<T, gtl::signed_long_list>;
-
 template <typename T>
 using is_ulonglongn = is_contained<T, gtl::vector_unsigned_longlong_list>;
 
diff --git a/sycl/test/basic_tests/generic_type_traits.cpp b/sycl/test/basic_tests/generic_type_traits.cpp
index 3378fab4769e1..8f88f2e6c6de9 100644
--- a/sycl/test/basic_tests/generic_type_traits.cpp
+++ b/sycl/test/basic_tests/generic_type_traits.cpp
@@ -99,42 +99,6 @@ int main() {
   is_genint
   */
 
-  // is_ulongn
-  static_assert(d::is_ulongn<s::uchar>::value == false, "");
-  static_assert(d::is_ulongn<s::ulong>::value == false, "");
-  static_assert(d::is_ulongn<s::ulong2>::value == true, "");
-  static_assert(d::is_ulongn<s::ulong3>::value == true, "");
-  static_assert(d::is_ulongn<s::ulong4>::value == true, "");
-  static_assert(d::is_ulongn<s::ulong8>::value == true, "");
-  static_assert(d::is_ulongn<s::ulong16>::value == true, "");
-
-  // is_ugenlong
-  static_assert(d::is_ugenlong<s::uchar>::value == false, "");
-  static_assert(d::is_ugenlong<s::ulong>::value == true, "");
-  static_assert(d::is_ugenlong<s::ulong2>::value == true, "");
-  static_assert(d::is_ugenlong<s::ulong3>::value == true, "");
-  static_assert(d::is_ugenlong<s::ulong4>::value == true, "");
-  static_assert(d::is_ugenlong<s::ulong8>::value == true, "");
-  static_assert(d::is_ugenlong<s::ulong16>::value == true, "");
-
-  // is_longn
-  static_assert(d::is_longn<char>::value == false, "");
-  static_assert(d::is_longn<long>::value == false, "");
-  static_assert(d::is_longn<s::long2>::value == true, "");
-  static_assert(d::is_longn<s::long3>::value == true, "");
-  static_assert(d::is_longn<s::long4>::value == true, "");
-  static_assert(d::is_longn<s::long8>::value == true, "");
-  static_assert(d::is_longn<s::long16>::value == true, "");
-
-  // is_genlong
-  static_assert(d::is_genlong<char>::value == false, "");
-  static_assert(d::is_genlong<long>::value == true, "");
-  static_assert(d::is_genlong<s::long2>::value == true, "");
-  static_assert(d::is_genlong<s::long3>::value == true, "");
-  static_assert(d::is_genlong<s::long4>::value == true, "");
-  static_assert(d::is_genlong<s::long8>::value == true, "");
-  static_assert(d::is_genlong<s::long16>::value == true, "");
-
   /*
   is_ulonglongn
   is_ugenlonglong
diff --git a/sycl/test/basic_tests/vectors/vectors.cpp b/sycl/test/basic_tests/vectors/vectors.cpp
index 777fa07bb9086..929e77abbab13 100644
--- a/sycl/test/basic_tests/vectors/vectors.cpp
+++ b/sycl/test/basic_tests/vectors/vectors.cpp
@@ -11,6 +11,8 @@
 #define SYCL_SIMPLE_SWIZZLES
 #include <sycl/sycl.hpp>
 
+#include <cstddef>
+
 void check_vectors(sycl::int4 a, sycl::int4 b, sycl::int4 c, sycl::int4 gold) {
   sycl::int4 result = a * (sycl::int4)b.y() + c;
   assert((int)result.x() == (int)gold.x());
@@ -100,17 +102,17 @@ int main() {
   auto asVec = inputVec.template swizzle<sycl::elem::s0, sycl::elem::s1>()
                    .template as<sycl::vec<int16_t, 1>>();
 
-  // Check that [u]long[n] type aliases match vec<[unsigned] long, n> types.
-  assert((std::is_same<sycl::vec<long, 2>, sycl::long2>::value));
-  assert((std::is_same<sycl::vec<long, 3>, sycl::long3>::value));
-  assert((std::is_same<sycl::vec<long, 4>, sycl::long4>::value));
-  assert((std::is_same<sycl::vec<long, 8>, sycl::long8>::value));
-  assert((std::is_same<sycl::vec<long, 16>, sycl::long16>::value));
-  assert((std::is_same<sycl::vec<unsigned long, 2>, sycl::ulong2>::value));
-  assert((std::is_same<sycl::vec<unsigned long, 3>, sycl::ulong3>::value));
-  assert((std::is_same<sycl::vec<unsigned long, 4>, sycl::ulong4>::value));
-  assert((std::is_same<sycl::vec<unsigned long, 8>, sycl::ulong8>::value));
-  assert((std::is_same<sycl::vec<unsigned long, 16>, sycl::ulong16>::value));
+  // Check that [u]long[n] type aliases match vec<[u]int64_t, n> types.
+  assert((std::is_same<sycl::vec<std::int64_t, 2>, sycl::long2>::value));
+  assert((std::is_same<sycl::vec<std::int64_t, 3>, sycl::long3>::value));
+  assert((std::is_same<sycl::vec<std::int64_t, 4>, sycl::long4>::value));
+  assert((std::is_same<sycl::vec<std::int64_t, 8>, sycl::long8>::value));
+  assert((std::is_same<sycl::vec<std::int64_t, 16>, sycl::long16>::value));
+  assert((std::is_same<sycl::vec<std::uint64_t, 2>, sycl::ulong2>::value));
+  assert((std::is_same<sycl::vec<std::uint64_t, 3>, sycl::ulong3>::value));
+  assert((std::is_same<sycl::vec<std::uint64_t, 4>, sycl::ulong4>::value));
+  assert((std::is_same<sycl::vec<std::uint64_t, 8>, sycl::ulong8>::value));
+  assert((std::is_same<sycl::vec<std::uint64_t, 16>, sycl::ulong16>::value));
 
   // Check convert() from and to various types.
   check_convert_from<int8_t>();