/*===---- __wmmintrin_pclmul.h - PCMUL intrinsics ---------------------------===
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#ifndef _WMMINTRIN_PCLMUL_H
#define _WMMINTRIN_PCLMUL_H

/// \brief Multiplies two 64-bit integer values, which are selected from source
///    operands using the immediate-value operand. The multiplication is a
///    carry-less multiplication, and the 128-bit integer product is stored in
///    the destination.
///
/// \headerfile <x86intrin.h>
///
/// \code
/// __m128i _mm_clmulepi64_si128(__m128i __X, __m128i __Y, const int __I);
/// \endcode
///
/// This intrinsic corresponds to the \c VPCLMULQDQ instruction.
///
/// \param __X
///    A 128-bit vector of [2 x i64] containing one of the source operands.
/// \param __Y
///    A 128-bit vector of [2 x i64] containing one of the source operands.
/// \param __I
///    An immediate value specifying which 64-bit values to select from the
///    operands.
///    Bit 0 is used to select a value from operand __X,
///    and bit 4 is used to select a value from operand __Y:
///    Bit[0]=0 indicates that bits[63:0] of operand __X are used.
///    Bit[0]=1 indicates that bits[127:64] of operand __X are used.
///    Bit[4]=0 indicates that bits[63:0] of operand __Y are used.
///    Bit[4]=1 indicates that bits[127:64] of operand __Y are used.
/// \returns The 128-bit integer vector containing the result of the carry-less
///    multiplication of the selected 64-bit values.
#define _mm_clmulepi64_si128(__X, __Y, __I) \
  ((__m128i)__builtin_ia32_pclmulqdq128((__v2di)(__m128i)(__X), \
                                        (__v2di)(__m128i)(__Y), (char)(__I)))

#endif /* _WMMINTRIN_PCLMUL_H */