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| /*===---- __wmmintrin_pclmul.h - PCMUL intrinsics ---------------------------===
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*
*===-----------------------------------------------------------------------===
*/
#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 */ |