1 /*===---- __wmmintrin_pclmul.h - PCMUL intrinsics ---------------------------=== 2 * 3 * Permission is hereby granted, free of charge, to any person obtaining a copy 4 * of this software and associated documentation files (the "Software"), to deal 5 * in the Software without restriction, including without limitation the rights 6 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 7 * copies of the Software, and to permit persons to whom the Software is 8 * furnished to do so, subject to the following conditions: 9 * 10 * The above copyright notice and this permission notice shall be included in 11 * all copies or substantial portions of the Software. 12 * 13 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 14 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 15 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 16 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 17 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 18 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN 19 * THE SOFTWARE. 20 * 21 *===-----------------------------------------------------------------------=== 22 */ 23 #ifndef _WMMINTRIN_PCLMUL_H 24 #define _WMMINTRIN_PCLMUL_H 25 26 /// \brief Multiplies two 64-bit integer values, which are selected from source 27 /// operands using the immediate-value operand. The multiplication is a 28 /// carry-less multiplication, and the 128-bit integer product is stored in 29 /// the destination. 30 /// 31 /// \headerfile <x86intrin.h> 32 /// 33 /// \code 34 /// __m128i _mm_clmulepi64_si128(__m128i __X, __m128i __Y, const int __I); 35 /// \endcode 36 /// 37 /// This intrinsic corresponds to the \c VPCLMULQDQ instruction. 38 /// 39 /// \param __X 40 /// A 128-bit vector of [2 x i64] containing one of the source operands. 41 /// \param __Y 42 /// A 128-bit vector of [2 x i64] containing one of the source operands. 43 /// \param __I 44 /// An immediate value specifying which 64-bit values to select from the 45 /// operands. 46 /// Bit 0 is used to select a value from operand __X, 47 /// and bit 4 is used to select a value from operand __Y: 48 /// Bit[0]=0 indicates that bits[63:0] of operand __X are used. 49 /// Bit[0]=1 indicates that bits[127:64] of operand __X are used. 50 /// Bit[4]=0 indicates that bits[63:0] of operand __Y are used. 51 /// Bit[4]=1 indicates that bits[127:64] of operand __Y are used. 52 /// \returns The 128-bit integer vector containing the result of the carry-less 53 /// multiplication of the selected 64-bit values. 54 #define _mm_clmulepi64_si128(__X, __Y, __I) \ 55 ((__m128i)__builtin_ia32_pclmulqdq128((__v2di)(__m128i)(__X), \ 56 (__v2di)(__m128i)(__Y), (char)(__I))) 57 58 #endif /* _WMMINTRIN_PCLMUL_H */ 59
