Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 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 */ |