__wmmintrin_pclmul.h 2.8 KB

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  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. /// \brief Multiplies two 64-bit integer values, which are selected from source
  26. /// operands using the immediate-value operand. The multiplication is a
  27. /// carry-less multiplication, and the 128-bit integer product is stored in
  28. /// the destination.
  29. ///
  30. /// \headerfile <x86intrin.h>
  31. ///
  32. /// \code
  33. /// __m128i _mm_clmulepi64_si128(__m128i __X, __m128i __Y, const int __I);
  34. /// \endcode
  35. ///
  36. /// This intrinsic corresponds to the <c> VPCLMULQDQ </c> instruction.
  37. ///
  38. /// \param __X
  39. /// A 128-bit vector of [2 x i64] containing one of the source operands.
  40. /// \param __Y
  41. /// A 128-bit vector of [2 x i64] containing one of the source operands.
  42. /// \param __I
  43. /// An immediate value specifying which 64-bit values to select from the
  44. /// operands. Bit 0 is used to select a value from operand \a __X, and bit
  45. /// 4 is used to select a value from operand \a __Y: \n
  46. /// Bit[0]=0 indicates that bits[63:0] of operand \a __X are used. \n
  47. /// Bit[0]=1 indicates that bits[127:64] of operand \a __X are used. \n
  48. /// Bit[4]=0 indicates that bits[63:0] of operand \a __Y are used. \n
  49. /// Bit[4]=1 indicates that bits[127:64] of operand \a __Y are used.
  50. /// \returns The 128-bit integer vector containing the result of the carry-less
  51. /// multiplication of the selected 64-bit values.
  52. #define _mm_clmulepi64_si128(__X, __Y, __I) \
  53. ((__m128i)__builtin_ia32_pclmulqdq128((__v2di)(__m128i)(__X), \
  54. (__v2di)(__m128i)(__Y), (char)(__I)))
  55. #endif /* _WMMINTRIN_PCLMUL_H */