forked from OSchip/llvm-project
49 lines
2.0 KiB
C
49 lines
2.0 KiB
C
/*===---- __wmmintrin_pclmul.h - PCMUL intrinsics ---------------------------===
|
|
*
|
|
* Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
|
|
* See https://llvm.org/LICENSE.txt for license information.
|
|
* SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
|
|
*
|
|
*===-----------------------------------------------------------------------===
|
|
*/
|
|
|
|
#ifndef __WMMINTRIN_H
|
|
#error "Never use <__wmmintrin_pclmul.h> directly; include <wmmintrin.h> instead."
|
|
#endif
|
|
|
|
#ifndef __WMMINTRIN_PCLMUL_H
|
|
#define __WMMINTRIN_PCLMUL_H
|
|
|
|
/// 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 */
|