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Add backwards compatibility with older oneAPI compilers for non-uniform group APIs #2997

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Merged
danhoeflinger merged 1 commit into from
Apr 13, 2026
+20 −0
Merged

Add backwards compatibility with older oneAPI compilers for non-uniform group APIs #2997

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20 changes: 20 additions & 0 deletions clang/runtime/dpct-rt/include/dpct/util.hpp
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Original file line number Diff line number Diff line change
Expand Up @@ -602,11 +602,21 @@ T shift_sub_group_left(sycl::sub_group sg, T input, int delta, int last_item,
return result;
#else
if ((1U << sg.get_local_linear_id()) & member_mask) {
#if defined(__INTEL_LLVM_COMPILER) && __INTEL_LLVM_COMPILER < 20260000
auto inner = sycl::ext::oneapi::experimental::get_tangle_group(sg);
#else
auto inner = sycl::ext::oneapi::experimental::entangle(sg);
#endif
sycl::group_barrier(inner);
}
#if defined(__INTEL_LLVM_COMPILER) && __INTEL_LLVM_COMPILER < 20260000
auto partition =
sycl::ext::oneapi::experimental::get_fixed_size_group<LogicSubGroupSize>(
sg);
#else
auto partition =
sycl::ext::oneapi::experimental::chunked_partition<LogicSubGroupSize>(sg);
#endif
int id = partition.get_local_linear_id();
T result = sycl::shift_group_left(partition, input, delta);
if ((id + delta) > last_item)
Expand Down Expand Up @@ -639,11 +649,21 @@ T shift_sub_group_right(sycl::sub_group sg, T input, int delta, int first_item,
return result;
#else
if ((1U << sg.get_local_linear_id()) & member_mask) {
#if defined(__INTEL_LLVM_COMPILER) && __INTEL_LLVM_COMPILER < 20260000
auto inner = sycl::ext::oneapi::experimental::get_tangle_group(sg);
#else
auto inner = sycl::ext::oneapi::experimental::entangle(sg);
#endif
sycl::group_barrier(inner);
}
#if defined(__INTEL_LLVM_COMPILER) && __INTEL_LLVM_COMPILER < 20260000
auto partition =
sycl::ext::oneapi::experimental::get_fixed_size_group<LogicSubGroupSize>(
sg);
#else
auto partition =
sycl::ext::oneapi::experimental::chunked_partition<LogicSubGroupSize>(sg);
#endif
int id = sg.get_local_linear_id();
T result = sycl::shift_group_right(partition, input, delta);
if ((id - first_item) < delta)
Expand Down
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