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shaintrin.h
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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.
69static __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.
89static __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.
109static __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.
141static __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.
161static __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.
181static __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 */
__inline unsigned int unsigned int __Y
Definition: bmi2intrin.h:19
#define __DEFAULT_FN_ATTRS
Definition: shaintrin.h:18
static __inline__ __m128i __DEFAULT_FN_ATTRS _mm_sha256rnds2_epu32(__m128i __X, __m128i __Y, __m128i __Z)
Performs two rounds of SHA-256 operation using the following inputs: a starting SHA-256 state (C,...
Definition: shaintrin.h:142
static __inline__ __m128i __DEFAULT_FN_ATTRS _mm_sha1nexte_epu32(__m128i __X, __m128i __Y)
Calculates the SHA-1 state variable E from the SHA-1 state variables in the 128-bit vector of [4 x i3...
Definition: shaintrin.h:70
static __inline__ __m128i __DEFAULT_FN_ATTRS _mm_sha1msg2_epu32(__m128i __X, __m128i __Y)
Performs the final calculation for deriving the next four SHA-1 message elements using previous messa...
Definition: shaintrin.h:110
static __inline__ __m128i __DEFAULT_FN_ATTRS _mm_sha1msg1_epu32(__m128i __X, __m128i __Y)
Performs an intermediate calculation for deriving the next four SHA-1 message elements using previous...
Definition: shaintrin.h:90
static __inline__ __m128i __DEFAULT_FN_ATTRS _mm_sha256msg1_epu32(__m128i __X, __m128i __Y)
Performs an intermediate calculation for deriving the next four SHA-256 message elements using previo...
Definition: shaintrin.h:162
static __inline__ __m128i __DEFAULT_FN_ATTRS _mm_sha256msg2_epu32(__m128i __X, __m128i __Y)
Performs the final calculation for deriving the next four SHA-256 message elements using previous mes...
Definition: shaintrin.h:182