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Revert "Remove AdaptiveCpp workaround in dpl_shim.h to allow for automatic prefetch optimization" #178

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Merged
merged 1 commit into from
Dec 4, 2023
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Revert "Remove AdaptiveCpp workaround in dpl_shim.h to allow for automatic prefetch optimization" #178

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12 changes: 12 additions & 0 deletions src/dpl_shim.h
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Original file line number Diff line number Diff line change
Expand Up @@ -55,10 +55,22 @@ static constexpr auto exe_policy = std::execution::par_unseq;
#endif

#ifdef USE_STD_PTR_ALLOC_DEALLOC

#if defined(__HIPSYCL__) || defined(__OPENSYCL__)
#include <CL/sycl.hpp>

// TODO We temporarily use malloc_shared/free here for hipSYCL stdpar because there's a linking issue if we let it hijack new/delete
// for this to work, we compile with --hipsycl-stdpar-system-usm so that hijacking is disabled
static cl::sycl::queue queue{cl::sycl::default_selector_v};
template <typename T> T *alloc_raw(size_t size) { return cl::sycl::malloc_shared<T>(size, queue); }
template <typename T> void dealloc_raw(T *ptr) { cl::sycl::free(ptr, queue); }

#else
template<typename T>
T *alloc_raw(size_t size) { return (T *) aligned_alloc(ALIGNMENT, sizeof(T) * size); }

template<typename T>
void dealloc_raw(T *ptr) { free(ptr); }
#endif

#endif