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Silence some static asserts in ptx helpers #1257

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Jan 16, 2024
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Silence some static asserts in ptx helpers #1257

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4 changes: 4 additions & 0 deletions libcudacxx/include/cuda/std/detail/libcxx/include/__cuda/ptx/ptx_helper_functions.h
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Original file line number Diff line number Diff line change
Expand Up @@ -46,15 +46,19 @@ inline _LIBCUDACXX_DEVICE _CUDA_VSTD::uint64_t __as_ptr_gmem(const void* __ptr)
template <typename _Tp>
inline _LIBCUDACXX_DEVICE _CUDA_VSTD::uint32_t __as_b32(_Tp __val)
{
#if _CCCL_STD_VER >= 2017 && !defined(_LIBCUDACXX_HAS_NO_CXX14_CONSTEXPR)
static_assert(sizeof(_Tp) == 4, "");
#endif // _CCCL_STD_VER >= 2017 && !_LIBCUDACXX_HAS_NO_CXX14_CONSTEXPR
// Consider using std::bitcast
return *reinterpret_cast<_CUDA_VSTD::uint32_t*>(&__val);
}

template <typename _Tp>
inline _LIBCUDACXX_DEVICE _CUDA_VSTD::uint64_t __as_b64(_Tp __val)
{
#if _CCCL_STD_VER >= 2017 && !defined(_LIBCUDACXX_HAS_NO_CXX14_CONSTEXPR)
static_assert(sizeof(_Tp) == 8, "");
#endif // _CCCL_STD_VER >= 2017 && !_LIBCUDACXX_HAS_NO_CXX14_CONSTEXPR
// Consider using std::bitcast
return *reinterpret_cast<_CUDA_VSTD::uint64_t*>(&__val);
}
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