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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 </c> 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 \a __X, and bit
- /// 4 is used to select a value from operand \a __Y: \n
- /// Bit[0]=0 indicates that bits[63:0] of operand \a __X are used. \n
- /// Bit[0]=1 indicates that bits[127:64] of operand \a __X are used. \n
- /// Bit[4]=0 indicates that bits[63:0] of operand \a __Y are used. \n
- /// Bit[4]=1 indicates that bits[127:64] of operand \a __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 */
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