[NFC][SYCL] Use get_elem_type_t instead of TryToGetElementType<T>::type (#12738)

Author: aelovikov-intel

sycl/include/sycl/accessor.hpp

@@ -1121,9 +1121,7 @@ class __image_array_slice__ {
 
   constexpr static int AdjustedDims = (Dimensions == 2) ? 4 : Dimensions + 1;
 
-  template <typename CoordT,
-            typename CoordElemType =
-                typename detail::TryToGetElementType<CoordT>::type>
+  template <typename CoordT, typename CoordElemType = get_elem_type_t<CoordT>>
   sycl::vec<CoordElemType, AdjustedDims>
   getAdjustedCoords(const CoordT &Coords) const {
     CoordElemType LastCoord = 0;

sycl/include/sycl/detail/generic_type_traits.hpp

@@ -301,18 +301,6 @@ template <typename T>
 using make_unsinged_integer_t =
     make_type_t<T, gtl::scalar_unsigned_integer_list>;
 
-// TryToGetElementType<T>::type is T::element_type or T::value_type if those
-// exist, otherwise T.
-template <typename T> class TryToGetElementType {
-  static T check(...);
-  template <typename A> static typename A::element_type check(const A &);
-  template <typename A> static typename A::value_type check(const A &);
-
-public:
-  using type = decltype(check(T()));
-  static constexpr bool value = !std::is_same_v<T, type>;
-};
-
 // select_apply_cl_scalar_t selects from T8/T16/T32/T64 basing on
 // sizeof(IN).  expected to handle scalar types.
 template <typename T, typename T8, typename T16, typename T32, typename T64>
@@ -525,6 +513,18 @@ template <typename T, typename Enable = void> struct RelConverter {
   static R apply(value_t value) { return value; }
 };
 
+// TryToGetElementType<T>::type is T::element_type or T::value_type if those
+// exist, otherwise T.
+template <typename T> class TryToGetElementType {
+  static T check(...);
+  template <typename A> static typename A::element_type check(const A &);
+  template <typename A> static typename A::value_type check(const A &);
+
+public:
+  using type = decltype(check(T()));
+  static constexpr bool value = !std::is_same_v<T, type>;
+};
+
 template <typename T>
 struct RelConverter<T,
                     typename std::enable_if_t<TryToGetElementType<T>::value>> {

sycl/include/sycl/detail/image_accessor_util.hpp

@@ -773,8 +773,6 @@ void imageWriteHostImpl(const CoordT &Coords, const WriteDataT &Color,
     break;
   case image_channel_type::fp16:
     writePixel(
-        // convertWriteDataToHalf<typename
-        // TryToGetElementType<WriteDataT>::type>(
         convertWriteData<half>(Color, ImgChannelType),
         reinterpret_cast<half *>(Ptr), ImgChannelOrder, ImgChannelType);
     break;
@@ -915,7 +913,7 @@ DataT getColor(const int4 PixelCoord, const addressing_mode SmplAddrMode,
   DataT RetData;
   if (isOutOfRange(PixelCoord, SmplAddrMode, ImgRange)) {
     float4 BorderColor = getBorderColor(ImgChannelOrder);
-    RetData = BorderColor.convert<typename TryToGetElementType<DataT>::type>();
+    RetData = BorderColor.convert<get_elem_type_t<DataT>>();
   } else {
     RetData = ReadPixelData<DataT>(PixelCoord, ImgPitch, ImgChannelType,
                                    ImgChannelOrder, BasePtr, ElementSize);
@@ -984,7 +982,7 @@ DataT ReadPixelDataLinearFiltMode(const int8 CoordValues, const float4 abc,
   //           (1 – a) * b * Ci0j1 + a * b * Ci1j1;
   // For 1D image: j0 = 0, j1 = 0, k0 = 0, k1 = 0, b = 0.5, c = 0.5.
   // RetData = (1 – a) * Ci0 + a * Ci1;
-  return RetData.convert<typename TryToGetElementType<DataT>::type>();
+  return RetData.convert<get_elem_type_t<DataT>>();
 }
 
 // imageReadSamplerHostImpl method is called by the read API in image accessors

sycl/test-e2e/Basic/image/image_accessor_readwrite.cpp

@@ -27,10 +27,10 @@ template <typename WriteDataT, int ImgType, int read_write> class kernel_class;
 
 template <typename ReadDataT,
           typename = typename std::enable_if<
-              (!(std::is_same<ReadDataT, s::cl_float4>::value) &&
-               !(std::is_same<ReadDataT, s::cl_half4>::value))>::type>
+              (!(std::is_same_v<ReadDataT, s::cl_float4>) &&
+               !(std::is_same_v<ReadDataT, s::cl_half4>))>::type>
 void check_read_data(ReadDataT ReadData, ReadDataT ExpectedColor) {
-  using ReadDataType = typename s::detail::TryToGetElementType<ReadDataT>::type;
+  using ReadDataType = typename ReadDataT::element_type;
   bool CorrectData = false;
   if ((ReadData.x() == ExpectedColor.x()) &&
       (ReadData.y() == ExpectedColor.y()) &&