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[SYCL] Change KernelType definition to use std::decay_t #20756

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[SYCL] Change KernelType definition to use std::decay_t #20756

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2e36d56
[SYCL] Fix KernelType definition
slawekptak Nov 25, 2025
3a7d4f4
Update the KernelType definition to use std::decay_t and detail::nth_…
slawekptak Nov 27, 2025
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14 changes: 6 additions & 8 deletions sycl/include/sycl/queue.hpp
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Original file line number Diff line number Diff line change
Expand Up @@ -130,8 +130,7 @@ auto submit_kernel_direct(
const detail::code_location &CodeLoc = detail::code_location::current()) {
detail::tls_code_loc_t TlsCodeLocCapture(CodeLoc);

using KernelType =
std::remove_const_t<std::remove_reference_t<KernelTypeUniversalRef>>;
using KernelType = std::decay_t<KernelTypeUniversalRef>;

using NameT =
typename detail::get_kernel_name_t<KernelName, KernelType>::name;
Expand Down Expand Up @@ -209,8 +208,7 @@ auto submit_kernel_direct_parallel_for(
const PropertiesT &Props = ext::oneapi::experimental::empty_properties_t{},
const detail::code_location &CodeLoc = detail::code_location::current()) {

using KernelType =
std::remove_const_t<std::remove_reference_t<KernelTypeUniversalRef>>;
using KernelType = std::decay_t<KernelTypeUniversalRef>;

using LambdaArgType =
sycl::detail::lambda_arg_type<KernelType, nd_item<Dims>>;
Expand Down Expand Up @@ -3310,7 +3308,7 @@ class __SYCL_EXPORT queue : public detail::OwnerLessBase<queue> {
RestT &&...Rest) {
constexpr detail::code_location CodeLoc = getCodeLocation<KernelName>();
detail::tls_code_loc_t TlsCodeLocCapture(CodeLoc);
using KernelType = std::tuple_element_t<0, std::tuple<RestT...>>;
using KernelType = std::decay_t<detail::nth_type_t<0, RestT...>>;

// TODO The handler-less path does not support reductions, and
// kernel functions with the kernel_handler type argument yet.
Expand Down Expand Up @@ -3340,7 +3338,7 @@ class __SYCL_EXPORT queue : public detail::OwnerLessBase<queue> {
parallel_for(nd_range<Dims> Range, RestT &&...Rest) {
constexpr detail::code_location CodeLoc = getCodeLocation<KernelName>();
detail::tls_code_loc_t TlsCodeLocCapture(CodeLoc);
using KernelType = std::tuple_element_t<0, std::tuple<RestT...>>;
using KernelType = std::decay_t<detail::nth_type_t<0, RestT...>>;

// TODO The handler-less path does not support reductions, and
// kernel functions with the kernel_handler type argument yet.
Expand Down Expand Up @@ -3402,7 +3400,7 @@ class __SYCL_EXPORT queue : public detail::OwnerLessBase<queue> {
parallel_for(nd_range<Dims> Range, event DepEvent, RestT &&...Rest) {
constexpr detail::code_location CodeLoc = getCodeLocation<KernelName>();
detail::tls_code_loc_t TlsCodeLocCapture(CodeLoc);
using KernelType = std::tuple_element_t<0, std::tuple<RestT...>>;
using KernelType = std::decay_t<detail::nth_type_t<0, RestT...>>;

// TODO The handler-less path does not support reductions, and
// kernel functions with the kernel_handler type argument yet.
Expand Down Expand Up @@ -3469,7 +3467,7 @@ class __SYCL_EXPORT queue : public detail::OwnerLessBase<queue> {
RestT &&...Rest) {
constexpr detail::code_location CodeLoc = getCodeLocation<KernelName>();
detail::tls_code_loc_t TlsCodeLocCapture(CodeLoc);
using KernelType = std::tuple_element_t<0, std::tuple<RestT...>>;
using KernelType = std::decay_t<detail::nth_type_t<0, RestT...>>;

// TODO The handler-less path does not support reductions, and
// kernel functions with the kernel_handler type argument yet.
Expand Down