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1 | /*===---- __wmmintrin_pclmul.h - PCMUL intrinsics ---------------------------=== |
---|---|
2 | * |
3 | * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
4 | * See https://llvm.org/LICENSE.txt for license information. |
5 | * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
6 | * |
7 | *===-----------------------------------------------------------------------=== |
8 | */ |
9 | |
10 | #ifndef __WMMINTRIN_H |
11 | #error "Never use <__wmmintrin_pclmul.h> directly; include <wmmintrin.h> instead." |
12 | #endif |
13 | |
14 | #ifndef __WMMINTRIN_PCLMUL_H |
15 | #define __WMMINTRIN_PCLMUL_H |
16 | |
17 | /// Multiplies two 64-bit integer values, which are selected from source |
18 | /// operands using the immediate-value operand. The multiplication is a |
19 | /// carry-less multiplication, and the 128-bit integer product is stored in |
20 | /// the destination. |
21 | /// |
22 | /// \headerfile <x86intrin.h> |
23 | /// |
24 | /// \code |
25 | /// __m128i _mm_clmulepi64_si128(__m128i X, __m128i Y, const int I); |
26 | /// \endcode |
27 | /// |
28 | /// This intrinsic corresponds to the <c> VPCLMULQDQ </c> instruction. |
29 | /// |
30 | /// \param X |
31 | /// A 128-bit vector of [2 x i64] containing one of the source operands. |
32 | /// \param Y |
33 | /// A 128-bit vector of [2 x i64] containing one of the source operands. |
34 | /// \param I |
35 | /// An immediate value specifying which 64-bit values to select from the |
36 | /// operands. Bit 0 is used to select a value from operand \a X, and bit |
37 | /// 4 is used to select a value from operand \a Y: \n |
38 | /// Bit[0]=0 indicates that bits[63:0] of operand \a X are used. \n |
39 | /// Bit[0]=1 indicates that bits[127:64] of operand \a X are used. \n |
40 | /// Bit[4]=0 indicates that bits[63:0] of operand \a Y are used. \n |
41 | /// Bit[4]=1 indicates that bits[127:64] of operand \a Y are used. |
42 | /// \returns The 128-bit integer vector containing the result of the carry-less |
43 | /// multiplication of the selected 64-bit values. |
44 | #define _mm_clmulepi64_si128(X, Y, I) \ |
45 | ((__m128i)__builtin_ia32_pclmulqdq128((__v2di)(__m128i)(X), \ |
46 | (__v2di)(__m128i)(Y), (char)(I))) |
47 | |
48 | #endif /* __WMMINTRIN_PCLMUL_H */ |
49 |
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