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8c4e1148b8
Pull Request resolved: https://github.com/pytorch/pytorch/pull/135558 Approved by: https://github.com/mikaylagawarecki
82 lines
2.2 KiB
C++
82 lines
2.2 KiB
C++
#pragma once
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#include <c10/util/BFloat16.h>
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#include <c10/util/Float8_e4m3fn.h>
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#include <c10/util/Float8_e4m3fnuz.h>
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#include <c10/util/Float8_e5m2.h>
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#include <c10/util/Float8_e5m2fnuz.h>
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#include <c10/util/Half.h>
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#include <torch/csrc/Export.h>
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#include <cstddef>
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#include <cstdint>
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#ifdef __FreeBSD__
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#include <sys/endian.h>
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#include <sys/types.h>
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#define thp_bswap16(x) bswap16(x)
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#define thp_bswap32(x) bswap32(x)
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#define thp_bswap64(x) bswap64(x)
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#elif defined(__APPLE__)
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#include <libkern/OSByteOrder.h>
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#define thp_bswap16(x) OSSwapInt16(x)
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#define thp_bswap32(x) OSSwapInt32(x)
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#define thp_bswap64(x) OSSwapInt64(x)
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#elif defined(__GNUC__) && !defined(__MINGW32__)
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#include <byteswap.h>
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#define thp_bswap16(x) bswap_16(x)
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#define thp_bswap32(x) bswap_32(x)
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#define thp_bswap64(x) bswap_64(x)
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#elif defined _WIN32 || defined _WIN64
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#define thp_bswap16(x) _byteswap_ushort(x)
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#define thp_bswap32(x) _byteswap_ulong(x)
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#define thp_bswap64(x) _byteswap_uint64(x)
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#endif
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#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
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#define to_be16(x) thp_bswap16(x)
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#define from_be16(x) thp_bswap16(x)
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#define to_be32(x) thp_bswap32(x)
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#define from_be32(x) thp_bswap32(x)
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#define to_be64(x) thp_bswap64(x)
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#define from_be64(x) thp_bswap64(x)
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#define to_le16(x) (x)
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#define from_le16(x) (x)
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#define to_le32(x) (x)
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#define from_le32(x) (x)
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#define to_le64(x) (x)
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#define from_le64(x) (x)
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#elif __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
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#define to_be16(x) (x)
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#define from_be16(x) (x)
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#define to_be32(x) (x)
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#define from_be32(x) (x)
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#define to_be64(x) (x)
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#define from_be64(x) (x)
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#define to_le16(x) thp_bswap16(x)
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#define from_le16(x) thp_bswap16(x)
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#define to_le32(x) thp_bswap32(x)
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#define from_le32(x) thp_bswap32(x)
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#define to_le64(x) thp_bswap64(x)
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#define from_le64(x) thp_bswap64(x)
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#else
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#error Unexpected or undefined __BYTE_ORDER__
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#endif
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namespace torch::utils {
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enum THPByteOrder { THP_LITTLE_ENDIAN = 0, THP_BIG_ENDIAN = 1 };
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TORCH_API THPByteOrder THP_nativeByteOrder();
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template <typename T, typename U>
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TORCH_API void THP_decodeBuffer(T* dst, const uint8_t* src, U type, size_t len);
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template <typename T>
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TORCH_API void THP_encodeBuffer(
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uint8_t* dst,
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const T* src,
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THPByteOrder order,
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size_t len);
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} // namespace torch::utils
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