Yi Kong | 8328301 | 2023-12-13 12:57:00 +0900 | [diff] [blame^] | 1 | /*===---- shaintrin.h - SHA 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 __IMMINTRIN_H |
| 11 | #error "Never use <shaintrin.h> directly; include <immintrin.h> instead." |
| 12 | #endif |
| 13 | |
| 14 | #ifndef __SHAINTRIN_H |
| 15 | #define __SHAINTRIN_H |
| 16 | |
| 17 | /* Define the default attributes for the functions in this file. */ |
| 18 | #define __DEFAULT_FN_ATTRS __attribute__((__always_inline__, __nodebug__, __target__("sha"), __min_vector_width__(128))) |
| 19 | |
| 20 | /// Performs four iterations of the inner loop of the SHA-1 message digest |
| 21 | /// algorithm using the starting SHA-1 state (A, B, C, D) from the 128-bit |
| 22 | /// vector of [4 x i32] in \a V1 and the next four 32-bit elements of the |
| 23 | /// message from the 128-bit vector of [4 x i32] in \a V2. Note that the |
| 24 | /// SHA-1 state variable E must have already been added to \a V2 |
| 25 | /// (\c _mm_sha1nexte_epu32() can perform this step). Returns the updated |
| 26 | /// SHA-1 state (A, B, C, D) as a 128-bit vector of [4 x i32]. |
| 27 | /// |
| 28 | /// The SHA-1 algorithm has an inner loop of 80 iterations, twenty each |
| 29 | /// with a different combining function and rounding constant. This |
| 30 | /// intrinsic performs four iterations using a combining function and |
| 31 | /// rounding constant selected by \a M[1:0]. |
| 32 | /// |
| 33 | /// \headerfile <immintrin.h> |
| 34 | /// |
| 35 | /// \code |
| 36 | /// __m128i _mm_sha1rnds4_epu32(__m128i V1, __m128i V2, const int M); |
| 37 | /// \endcode |
| 38 | /// |
| 39 | /// This intrinsic corresponds to the \c SHA1RNDS4 instruction. |
| 40 | /// |
| 41 | /// \param V1 |
| 42 | /// A 128-bit vector of [4 x i32] containing the initial SHA-1 state. |
| 43 | /// \param V2 |
| 44 | /// A 128-bit vector of [4 x i32] containing the next four elements of |
| 45 | /// the message, plus SHA-1 state variable E. |
| 46 | /// \param M |
| 47 | /// An immediate value where bits [1:0] select among four possible |
| 48 | /// combining functions and rounding constants (not specified here). |
| 49 | /// \returns A 128-bit vector of [4 x i32] containing the updated SHA-1 state. |
| 50 | #define _mm_sha1rnds4_epu32(V1, V2, M) \ |
| 51 | __builtin_ia32_sha1rnds4((__v4si)(__m128i)(V1), (__v4si)(__m128i)(V2), (M)) |
| 52 | |
| 53 | /// Calculates the SHA-1 state variable E from the SHA-1 state variables in |
| 54 | /// the 128-bit vector of [4 x i32] in \a __X, adds that to the next set of |
| 55 | /// four message elements in the 128-bit vector of [4 x i32] in \a __Y, and |
| 56 | /// returns the result. |
| 57 | /// |
| 58 | /// \headerfile <immintrin.h> |
| 59 | /// |
| 60 | /// This intrinsic corresponds to the \c SHA1NEXTE instruction. |
| 61 | /// |
| 62 | /// \param __X |
| 63 | /// A 128-bit vector of [4 x i32] containing the current SHA-1 state. |
| 64 | /// \param __Y |
| 65 | /// A 128-bit vector of [4 x i32] containing the next four elements of the |
| 66 | /// message. |
| 67 | /// \returns A 128-bit vector of [4 x i32] containing the updated SHA-1 |
| 68 | /// values. |
| 69 | static __inline__ __m128i __DEFAULT_FN_ATTRS |
| 70 | _mm_sha1nexte_epu32(__m128i __X, __m128i __Y) |
| 71 | { |
| 72 | return (__m128i)__builtin_ia32_sha1nexte((__v4si)__X, (__v4si)__Y); |
| 73 | } |
| 74 | |
| 75 | /// Performs an intermediate calculation for deriving the next four SHA-1 |
| 76 | /// message elements using previous message elements from the 128-bit |
| 77 | /// vectors of [4 x i32] in \a __X and \a __Y, and returns the result. |
| 78 | /// |
| 79 | /// \headerfile <immintrin.h> |
| 80 | /// |
| 81 | /// This intrinsic corresponds to the \c SHA1MSG1 instruction. |
| 82 | /// |
| 83 | /// \param __X |
| 84 | /// A 128-bit vector of [4 x i32] containing previous message elements. |
| 85 | /// \param __Y |
| 86 | /// A 128-bit vector of [4 x i32] containing previous message elements. |
| 87 | /// \returns A 128-bit vector of [4 x i32] containing the derived SHA-1 |
| 88 | /// elements. |
| 89 | static __inline__ __m128i __DEFAULT_FN_ATTRS |
| 90 | _mm_sha1msg1_epu32(__m128i __X, __m128i __Y) |
| 91 | { |
| 92 | return (__m128i)__builtin_ia32_sha1msg1((__v4si)__X, (__v4si)__Y); |
| 93 | } |
| 94 | |
| 95 | /// Performs the final calculation for deriving the next four SHA-1 message |
| 96 | /// elements using previous message elements from the 128-bit vectors of |
| 97 | /// [4 x i32] in \a __X and \a __Y, and returns the result. |
| 98 | /// |
| 99 | /// \headerfile <immintrin.h> |
| 100 | /// |
| 101 | /// This intrinsic corresponds to the \c SHA1MSG2 instruction. |
| 102 | /// |
| 103 | /// \param __X |
| 104 | /// A 128-bit vector of [4 x i32] containing an intermediate result. |
| 105 | /// \param __Y |
| 106 | /// A 128-bit vector of [4 x i32] containing previous message values. |
| 107 | /// \returns A 128-bit vector of [4 x i32] containing the updated SHA-1 |
| 108 | /// values. |
| 109 | static __inline__ __m128i __DEFAULT_FN_ATTRS |
| 110 | _mm_sha1msg2_epu32(__m128i __X, __m128i __Y) |
| 111 | { |
| 112 | return (__m128i)__builtin_ia32_sha1msg2((__v4si)__X, (__v4si)__Y); |
| 113 | } |
| 114 | |
| 115 | /// Performs two rounds of SHA-256 operation using the following inputs: a |
| 116 | /// starting SHA-256 state (C, D, G, H) from the 128-bit vector of |
| 117 | /// [4 x i32] in \a __X; a starting SHA-256 state (A, B, E, F) from the |
| 118 | /// 128-bit vector of [4 x i32] in \a __Y; and a pre-computed sum of the |
| 119 | /// next two message elements (unsigned 32-bit integers) and corresponding |
| 120 | /// rounding constants from the 128-bit vector of [4 x i32] in \a __Z. |
| 121 | /// Returns the updated SHA-256 state (A, B, E, F) as a 128-bit vector of |
| 122 | /// [4 x i32]. |
| 123 | /// |
| 124 | /// The SHA-256 algorithm has a core loop of 64 iterations. This intrinsic |
| 125 | /// performs two of those iterations. |
| 126 | /// |
| 127 | /// \headerfile <immintrin.h> |
| 128 | /// |
| 129 | /// This intrinsic corresponds to the \c SHA256RNDS2 instruction. |
| 130 | /// |
| 131 | /// \param __X |
| 132 | /// A 128-bit vector of [4 x i32] containing part of the initial SHA-256 |
| 133 | /// state. |
| 134 | /// \param __Y |
| 135 | /// A 128-bit vector of [4 x i32] containing part of the initial SHA-256 |
| 136 | /// state. |
| 137 | /// \param __Z |
| 138 | /// A 128-bit vector of [4 x i32] containing additional input to the |
| 139 | /// SHA-256 operation. |
| 140 | /// \returns A 128-bit vector of [4 x i32] containing the updated SHA-1 state. |
| 141 | static __inline__ __m128i __DEFAULT_FN_ATTRS |
| 142 | _mm_sha256rnds2_epu32(__m128i __X, __m128i __Y, __m128i __Z) |
| 143 | { |
| 144 | return (__m128i)__builtin_ia32_sha256rnds2((__v4si)__X, (__v4si)__Y, (__v4si)__Z); |
| 145 | } |
| 146 | |
| 147 | /// Performs an intermediate calculation for deriving the next four SHA-256 |
| 148 | /// message elements using previous message elements from the 128-bit |
| 149 | /// vectors of [4 x i32] in \a __X and \a __Y, and returns the result. |
| 150 | /// |
| 151 | /// \headerfile <immintrin.h> |
| 152 | /// |
| 153 | /// This intrinsic corresponds to the \c SHA256MSG1 instruction. |
| 154 | /// |
| 155 | /// \param __X |
| 156 | /// A 128-bit vector of [4 x i32] containing previous message elements. |
| 157 | /// \param __Y |
| 158 | /// A 128-bit vector of [4 x i32] containing previous message elements. |
| 159 | /// \returns A 128-bit vector of [4 x i32] containing the updated SHA-256 |
| 160 | /// values. |
| 161 | static __inline__ __m128i __DEFAULT_FN_ATTRS |
| 162 | _mm_sha256msg1_epu32(__m128i __X, __m128i __Y) |
| 163 | { |
| 164 | return (__m128i)__builtin_ia32_sha256msg1((__v4si)__X, (__v4si)__Y); |
| 165 | } |
| 166 | |
| 167 | /// Performs the final calculation for deriving the next four SHA-256 message |
| 168 | /// elements using previous message elements from the 128-bit vectors of |
| 169 | /// [4 x i32] in \a __X and \a __Y, and returns the result. |
| 170 | /// |
| 171 | /// \headerfile <immintrin.h> |
| 172 | /// |
| 173 | /// This intrinsic corresponds to the \c SHA256MSG2 instruction. |
| 174 | /// |
| 175 | /// \param __X |
| 176 | /// A 128-bit vector of [4 x i32] containing an intermediate result. |
| 177 | /// \param __Y |
| 178 | /// A 128-bit vector of [4 x i32] containing previous message values. |
| 179 | /// \returns A 128-bit vector of [4 x i32] containing the updated SHA-256 |
| 180 | /// values. |
| 181 | static __inline__ __m128i __DEFAULT_FN_ATTRS |
| 182 | _mm_sha256msg2_epu32(__m128i __X, __m128i __Y) |
| 183 | { |
| 184 | return (__m128i)__builtin_ia32_sha256msg2((__v4si)__X, (__v4si)__Y); |
| 185 | } |
| 186 | |
| 187 | #undef __DEFAULT_FN_ATTRS |
| 188 | |
| 189 | #endif /* __SHAINTRIN_H */ |