1 /*
2 * Copyright (c) 2013, 2021, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
23 */
24
25 #include "precompiled.hpp"
26 #include "runtime/deoptimization.hpp"
27 #include "runtime/frame.inline.hpp"
28 #include "runtime/stubRoutines.hpp"
29 #include "runtime/thread.inline.hpp"
30 #include "utilities/globalDefinitions.hpp"
31 #include "crc32c.h"
32
33 // Implementation of the platform-specific part of StubRoutines - for
34 // a description of how to extend it, see the stubRoutines.hpp file.
35
36 address StubRoutines::x86::_verify_mxcsr_entry = NULL;
37 address StubRoutines::x86::_key_shuffle_mask_addr = NULL;
38 address StubRoutines::x86::_counter_shuffle_mask_addr = NULL;
39 address StubRoutines::x86::_ghash_long_swap_mask_addr = NULL;
40 address StubRoutines::x86::_ghash_byte_swap_mask_addr = NULL;
41 address StubRoutines::x86::_ghash_poly_addr = NULL;
42 address StubRoutines::x86::_ghash_shuffmask_addr = NULL;
43 address StubRoutines::x86::_upper_word_mask_addr = NULL;
44 address StubRoutines::x86::_shuffle_byte_flip_mask_addr = NULL;
45 address StubRoutines::x86::_k256_adr = NULL;
46 address StubRoutines::x86::_vector_short_to_byte_mask = NULL;
47 address StubRoutines::x86::_vector_int_to_byte_mask = NULL;
48 address StubRoutines::x86::_vector_int_to_short_mask = NULL;
49 address StubRoutines::x86::_vector_all_bits_set = NULL;
50 address StubRoutines::x86::_vector_byte_shuffle_mask = NULL;
51 address StubRoutines::x86::_vector_int_mask_cmp_bits = NULL;
52 address StubRoutines::x86::_vector_short_shuffle_mask = NULL;
53 address StubRoutines::x86::_vector_int_shuffle_mask = NULL;
54 address StubRoutines::x86::_vector_long_shuffle_mask = NULL;
55 address StubRoutines::x86::_vector_float_sign_mask = NULL;
56 address StubRoutines::x86::_vector_float_sign_flip = NULL;
57 address StubRoutines::x86::_vector_double_sign_mask = NULL;
58 address StubRoutines::x86::_vector_double_sign_flip = NULL;
59 address StubRoutines::x86::_vector_byte_perm_mask = NULL;
60 address StubRoutines::x86::_vector_long_sign_mask = NULL;
61 address StubRoutines::x86::_vector_iota_indices = NULL;
62 address StubRoutines::x86::_vector_reverse_bit_lut = NULL;
63 address StubRoutines::x86::_vector_reverse_byte_perm_mask_long = NULL;
64 address StubRoutines::x86::_vector_reverse_byte_perm_mask_int = NULL;
65 address StubRoutines::x86::_vector_reverse_byte_perm_mask_short = NULL;
66 address StubRoutines::x86::_vector_popcount_lut = NULL;
67 address StubRoutines::x86::_vector_count_leading_zeros_lut = NULL;
68 address StubRoutines::x86::_vector_32_bit_mask = NULL;
69 address StubRoutines::x86::_vector_64_bit_mask = NULL;
70 #ifdef _LP64
71 address StubRoutines::x86::_k256_W_adr = NULL;
72 address StubRoutines::x86::_k512_W_addr = NULL;
73 address StubRoutines::x86::_pshuffle_byte_flip_mask_addr_sha512 = NULL;
74 // Base64 masks
75 address StubRoutines::x86::_encoding_table_base64 = NULL;
76 address StubRoutines::x86::_shuffle_base64 = NULL;
77 address StubRoutines::x86::_avx2_shuffle_base64 = NULL;
78 address StubRoutines::x86::_avx2_input_mask_base64 = NULL;
79 address StubRoutines::x86::_avx2_lut_base64 = NULL;
80 address StubRoutines::x86::_counter_mask_addr = NULL;
81 address StubRoutines::x86::_lookup_lo_base64 = NULL;
82 address StubRoutines::x86::_lookup_hi_base64 = NULL;
83 address StubRoutines::x86::_lookup_lo_base64url = NULL;
84 address StubRoutines::x86::_lookup_hi_base64url = NULL;
85 address StubRoutines::x86::_pack_vec_base64 = NULL;
86 address StubRoutines::x86::_join_0_1_base64 = NULL;
87 address StubRoutines::x86::_join_1_2_base64 = NULL;
88 address StubRoutines::x86::_join_2_3_base64 = NULL;
89 address StubRoutines::x86::_decoding_table_base64 = NULL;
90 address StubRoutines::x86::_ghash_poly512_addr = NULL;
91 #endif
92 address StubRoutines::x86::_pshuffle_byte_flip_mask_addr = NULL;
93
94 //tables common for sin and cos
95 address StubRoutines::x86::_ONEHALF_adr = NULL;
96 address StubRoutines::x86::_P_2_adr = NULL;
97 address StubRoutines::x86::_SC_4_adr = NULL;
98 address StubRoutines::x86::_Ctable_adr = NULL;
99 address StubRoutines::x86::_SC_2_adr = NULL;
100 address StubRoutines::x86::_SC_3_adr = NULL;
101 address StubRoutines::x86::_SC_1_adr = NULL;
102 address StubRoutines::x86::_PI_INV_TABLE_adr = NULL;
103 address StubRoutines::x86::_PI_4_adr = NULL;
104 address StubRoutines::x86::_PI32INV_adr = NULL;
105 address StubRoutines::x86::_SIGN_MASK_adr = NULL;
106 address StubRoutines::x86::_P_1_adr = NULL;
107 address StubRoutines::x86::_P_3_adr = NULL;
108 address StubRoutines::x86::_NEG_ZERO_adr = NULL;
109
110 //tables common for sincos and tancot
111 address StubRoutines::x86::_L_2il0floatpacket_0_adr = NULL;
112 address StubRoutines::x86::_Pi4Inv_adr = NULL;
113 address StubRoutines::x86::_Pi4x3_adr = NULL;
114 address StubRoutines::x86::_Pi4x4_adr = NULL;
115 address StubRoutines::x86::_ones_adr = NULL;
116
117 uint64_t StubRoutines::x86::_crc_by128_masks[] =
118 {
119 /* The fields in this structure are arranged so that they can be
120 * picked up two at a time with 128-bit loads.
121 *
122 * Because of flipped bit order for this CRC polynomials
123 * the constant for X**N is left-shifted by 1. This is because
124 * a 64 x 64 polynomial multiply produces a 127-bit result
125 * but the highest term is always aligned to bit 0 in the container.
126 * Pre-shifting by one fixes this, at the cost of potentially making
127 * the 32-bit constant no longer fit in a 32-bit container (thus the
128 * use of uint64_t, though this is also the size used by the carry-
129 * less multiply instruction.
130 *
131 * In addition, the flipped bit order and highest-term-at-least-bit
132 * multiply changes the constants used. The 96-bit result will be
133 * aligned to the high-term end of the target 128-bit container,
134 * not the low-term end; that is, instead of a 512-bit or 576-bit fold,
135 * instead it is a 480 (=512-32) or 544 (=512+64-32) bit fold.
136 *
137 * This cause additional problems in the 128-to-64-bit reduction; see the
138 * code for details. By storing a mask in the otherwise unused half of
139 * a 128-bit constant, bits can be cleared before multiplication without
140 * storing and reloading. Note that staying on a 128-bit datapath means
141 * that some data is uselessly stored and some unused data is intersected
142 * with an irrelevant constant.
143 */
144
145 ((uint64_t) 0xffffffffUL), /* low of K_M_64 */
146 ((uint64_t) 0xb1e6b092U << 1), /* high of K_M_64 */
147 ((uint64_t) 0xba8ccbe8U << 1), /* low of K_160_96 */
148 ((uint64_t) 0x6655004fU << 1), /* high of K_160_96 */
149 ((uint64_t) 0xaa2215eaU << 1), /* low of K_544_480 */
150 ((uint64_t) 0xe3720acbU << 1) /* high of K_544_480 */
151 };
152
153 /**
154 * crc_table[] from jdk/src/share/native/java/util/zip/zlib-1.2.5/crc32.h
155 */
156 juint StubRoutines::x86::_crc_table[] =
157 {
158 0x00000000UL, 0x77073096UL, 0xee0e612cUL, 0x990951baUL, 0x076dc419UL,
159 0x706af48fUL, 0xe963a535UL, 0x9e6495a3UL, 0x0edb8832UL, 0x79dcb8a4UL,
160 0xe0d5e91eUL, 0x97d2d988UL, 0x09b64c2bUL, 0x7eb17cbdUL, 0xe7b82d07UL,
161 0x90bf1d91UL, 0x1db71064UL, 0x6ab020f2UL, 0xf3b97148UL, 0x84be41deUL,
162 0x1adad47dUL, 0x6ddde4ebUL, 0xf4d4b551UL, 0x83d385c7UL, 0x136c9856UL,
163 0x646ba8c0UL, 0xfd62f97aUL, 0x8a65c9ecUL, 0x14015c4fUL, 0x63066cd9UL,
164 0xfa0f3d63UL, 0x8d080df5UL, 0x3b6e20c8UL, 0x4c69105eUL, 0xd56041e4UL,
165 0xa2677172UL, 0x3c03e4d1UL, 0x4b04d447UL, 0xd20d85fdUL, 0xa50ab56bUL,
166 0x35b5a8faUL, 0x42b2986cUL, 0xdbbbc9d6UL, 0xacbcf940UL, 0x32d86ce3UL,
167 0x45df5c75UL, 0xdcd60dcfUL, 0xabd13d59UL, 0x26d930acUL, 0x51de003aUL,
168 0xc8d75180UL, 0xbfd06116UL, 0x21b4f4b5UL, 0x56b3c423UL, 0xcfba9599UL,
169 0xb8bda50fUL, 0x2802b89eUL, 0x5f058808UL, 0xc60cd9b2UL, 0xb10be924UL,
170 0x2f6f7c87UL, 0x58684c11UL, 0xc1611dabUL, 0xb6662d3dUL, 0x76dc4190UL,
171 0x01db7106UL, 0x98d220bcUL, 0xefd5102aUL, 0x71b18589UL, 0x06b6b51fUL,
172 0x9fbfe4a5UL, 0xe8b8d433UL, 0x7807c9a2UL, 0x0f00f934UL, 0x9609a88eUL,
173 0xe10e9818UL, 0x7f6a0dbbUL, 0x086d3d2dUL, 0x91646c97UL, 0xe6635c01UL,
174 0x6b6b51f4UL, 0x1c6c6162UL, 0x856530d8UL, 0xf262004eUL, 0x6c0695edUL,
175 0x1b01a57bUL, 0x8208f4c1UL, 0xf50fc457UL, 0x65b0d9c6UL, 0x12b7e950UL,
176 0x8bbeb8eaUL, 0xfcb9887cUL, 0x62dd1ddfUL, 0x15da2d49UL, 0x8cd37cf3UL,
177 0xfbd44c65UL, 0x4db26158UL, 0x3ab551ceUL, 0xa3bc0074UL, 0xd4bb30e2UL,
178 0x4adfa541UL, 0x3dd895d7UL, 0xa4d1c46dUL, 0xd3d6f4fbUL, 0x4369e96aUL,
179 0x346ed9fcUL, 0xad678846UL, 0xda60b8d0UL, 0x44042d73UL, 0x33031de5UL,
180 0xaa0a4c5fUL, 0xdd0d7cc9UL, 0x5005713cUL, 0x270241aaUL, 0xbe0b1010UL,
181 0xc90c2086UL, 0x5768b525UL, 0x206f85b3UL, 0xb966d409UL, 0xce61e49fUL,
182 0x5edef90eUL, 0x29d9c998UL, 0xb0d09822UL, 0xc7d7a8b4UL, 0x59b33d17UL,
183 0x2eb40d81UL, 0xb7bd5c3bUL, 0xc0ba6cadUL, 0xedb88320UL, 0x9abfb3b6UL,
184 0x03b6e20cUL, 0x74b1d29aUL, 0xead54739UL, 0x9dd277afUL, 0x04db2615UL,
185 0x73dc1683UL, 0xe3630b12UL, 0x94643b84UL, 0x0d6d6a3eUL, 0x7a6a5aa8UL,
186 0xe40ecf0bUL, 0x9309ff9dUL, 0x0a00ae27UL, 0x7d079eb1UL, 0xf00f9344UL,
187 0x8708a3d2UL, 0x1e01f268UL, 0x6906c2feUL, 0xf762575dUL, 0x806567cbUL,
188 0x196c3671UL, 0x6e6b06e7UL, 0xfed41b76UL, 0x89d32be0UL, 0x10da7a5aUL,
189 0x67dd4accUL, 0xf9b9df6fUL, 0x8ebeeff9UL, 0x17b7be43UL, 0x60b08ed5UL,
190 0xd6d6a3e8UL, 0xa1d1937eUL, 0x38d8c2c4UL, 0x4fdff252UL, 0xd1bb67f1UL,
191 0xa6bc5767UL, 0x3fb506ddUL, 0x48b2364bUL, 0xd80d2bdaUL, 0xaf0a1b4cUL,
192 0x36034af6UL, 0x41047a60UL, 0xdf60efc3UL, 0xa867df55UL, 0x316e8eefUL,
193 0x4669be79UL, 0xcb61b38cUL, 0xbc66831aUL, 0x256fd2a0UL, 0x5268e236UL,
194 0xcc0c7795UL, 0xbb0b4703UL, 0x220216b9UL, 0x5505262fUL, 0xc5ba3bbeUL,
195 0xb2bd0b28UL, 0x2bb45a92UL, 0x5cb36a04UL, 0xc2d7ffa7UL, 0xb5d0cf31UL,
196 0x2cd99e8bUL, 0x5bdeae1dUL, 0x9b64c2b0UL, 0xec63f226UL, 0x756aa39cUL,
197 0x026d930aUL, 0x9c0906a9UL, 0xeb0e363fUL, 0x72076785UL, 0x05005713UL,
198 0x95bf4a82UL, 0xe2b87a14UL, 0x7bb12baeUL, 0x0cb61b38UL, 0x92d28e9bUL,
199 0xe5d5be0dUL, 0x7cdcefb7UL, 0x0bdbdf21UL, 0x86d3d2d4UL, 0xf1d4e242UL,
200 0x68ddb3f8UL, 0x1fda836eUL, 0x81be16cdUL, 0xf6b9265bUL, 0x6fb077e1UL,
201 0x18b74777UL, 0x88085ae6UL, 0xff0f6a70UL, 0x66063bcaUL, 0x11010b5cUL,
202 0x8f659effUL, 0xf862ae69UL, 0x616bffd3UL, 0x166ccf45UL, 0xa00ae278UL,
203 0xd70dd2eeUL, 0x4e048354UL, 0x3903b3c2UL, 0xa7672661UL, 0xd06016f7UL,
204 0x4969474dUL, 0x3e6e77dbUL, 0xaed16a4aUL, 0xd9d65adcUL, 0x40df0b66UL,
205 0x37d83bf0UL, 0xa9bcae53UL, 0xdebb9ec5UL, 0x47b2cf7fUL, 0x30b5ffe9UL,
206 0xbdbdf21cUL, 0xcabac28aUL, 0x53b39330UL, 0x24b4a3a6UL, 0xbad03605UL,
207 0xcdd70693UL, 0x54de5729UL, 0x23d967bfUL, 0xb3667a2eUL, 0xc4614ab8UL,
208 0x5d681b02UL, 0x2a6f2b94UL, 0xb40bbe37UL, 0xc30c8ea1UL, 0x5a05df1bUL,
209 0x2d02ef8dUL
210 };
211
212 #ifdef _LP64
213 juint StubRoutines::x86::_crc_table_avx512[] =
214 {
215 0xe95c1271UL, 0x00000000UL, 0xce3371cbUL, 0x00000000UL,
216 0xccaa009eUL, 0x00000000UL, 0x751997d0UL, 0x00000001UL,
217 0x4a7fe880UL, 0x00000001UL, 0xe88ef372UL, 0x00000001UL,
218 0xccaa009eUL, 0x00000000UL, 0x63cd6124UL, 0x00000001UL,
219 0xf7011640UL, 0x00000001UL, 0xdb710640UL, 0x00000001UL,
220 0xd7cfc6acUL, 0x00000001UL, 0xea89367eUL, 0x00000001UL,
221 0x8cb44e58UL, 0x00000001UL, 0xdf068dc2UL, 0x00000000UL,
222 0xae0b5394UL, 0x00000000UL, 0xc7569e54UL, 0x00000001UL,
223 0xc6e41596UL, 0x00000001UL, 0x54442bd4UL, 0x00000001UL,
224 0x74359406UL, 0x00000001UL, 0x3db1ecdcUL, 0x00000000UL,
225 0x5a546366UL, 0x00000001UL, 0xf1da05aaUL, 0x00000000UL,
226 0xccaa009eUL, 0x00000000UL, 0x751997d0UL, 0x00000001UL,
227 0x00000000UL, 0x00000000UL, 0x00000000UL, 0x00000000UL
228 };
229
230 juint StubRoutines::x86::_crc32c_table_avx512[] =
231 {
232 0xb9e02b86UL, 0x00000000UL, 0xdcb17aa4UL, 0x00000000UL,
233 0x493c7d27UL, 0x00000000UL, 0xc1068c50UL, 0x0000000eUL,
234 0x06e38d70UL, 0x00000002UL, 0x6992cea2UL, 0x00000000UL,
235 0x493c7d27UL, 0x00000000UL, 0xdd45aab8UL, 0x00000000UL,
236 0xdea713f0UL, 0x00000000UL, 0x05ec76f0UL, 0x00000001UL,
237 0x47db8317UL, 0x00000000UL, 0x2ad91c30UL, 0x00000000UL,
238 0x0715ce53UL, 0x00000000UL, 0xc49f4f67UL, 0x00000000UL,
239 0x39d3b296UL, 0x00000000UL, 0x083a6eecUL, 0x00000000UL,
240 0x9e4addf8UL, 0x00000000UL, 0x740eef02UL, 0x00000000UL,
241 0xddc0152bUL, 0x00000000UL, 0x1c291d04UL, 0x00000000UL,
242 0xba4fc28eUL, 0x00000000UL, 0x3da6d0cbUL, 0x00000000UL,
243 0x493c7d27UL, 0x00000000UL, 0xc1068c50UL, 0x0000000eUL,
244 0x00000000UL, 0x00000000UL, 0x00000000UL, 0x00000000UL
245 };
246
247 juint StubRoutines::x86::_crc_by128_masks_avx512[] =
248 {
249 0xffffffffUL, 0xffffffffUL, 0x00000000UL, 0x00000000UL,
250 0x00000000UL, 0xffffffffUL, 0xffffffffUL, 0xffffffffUL,
251 0x80808080UL, 0x80808080UL, 0x80808080UL, 0x80808080UL
252 };
253
254 juint StubRoutines::x86::_shuf_table_crc32_avx512[] =
255 {
256 0x83828100UL, 0x87868584UL, 0x8b8a8988UL, 0x8f8e8d8cUL,
257 0x03020100UL, 0x07060504UL, 0x0b0a0908UL, 0x000e0d0cUL
258 };
259
260 juint StubRoutines::x86::_adler32_ascale_table[] =
261 {
262 0x00000000UL, 0x00000001UL, 0x00000002UL, 0x00000003UL,
263 0x00000004UL, 0x00000005UL, 0x00000006UL, 0x00000007UL
264 };
265
266 juint StubRoutines::x86::_adler32_shuf0_table[] =
267 {
268 0xFFFFFF00UL, 0xFFFFFF01UL, 0xFFFFFF02UL, 0xFFFFFF03UL,
269 0xFFFFFF04UL, 0xFFFFFF05UL, 0xFFFFFF06UL, 0xFFFFFF07UL
270 };
271
272 juint StubRoutines::x86::_adler32_shuf1_table[] =
273 {
274 0xFFFFFF08UL, 0xFFFFFF09, 0xFFFFFF0AUL, 0xFFFFFF0BUL,
275 0xFFFFFF0CUL, 0xFFFFFF0D, 0xFFFFFF0EUL, 0xFFFFFF0FUL
276 };
277
278 #endif // _LP64
279
280 #define D 32
281 #define P 0x82F63B78 // Reflection of Castagnoli (0x11EDC6F41)
282
283 #define TILL_CYCLE 31
284 uint32_t _crc32c_pow_2k_table[TILL_CYCLE]; // because _crc32c_pow_2k_table[TILL_CYCLE == 31] == _crc32c_pow_2k_table[0]
285
286 // A. Kadatch and B. Jenkins / Everything we know about CRC but afraid to forget September 3, 2010 8
287 // Listing 1: Multiplication of normalized polynomials
288 // "a" and "b" occupy D least significant bits.
289 uint32_t crc32c_multiply(uint32_t a, uint32_t b) {
290 uint32_t product = 0;
291 uint32_t b_pow_x_table[D + 1]; // b_pow_x_table[k] = (b * x**k) mod P
292 b_pow_x_table[0] = b;
293 for (int k = 0; k < D; ++k) {
294 // If "a" has non-zero coefficient at x**k,/ add ((b * x**k) mod P) to the result.
295 if ((a & (((uint32_t)1) << (D - 1 - k))) != 0) product ^= b_pow_x_table[k];
296
297 // Compute b_pow_x_table[k+1] = (b ** x**(k+1)) mod P.
298 if (b_pow_x_table[k] & 1) {
299 // If degree of (b_pow_x_table[k] * x) is D, then
300 // degree of (b_pow_x_table[k] * x - P) is less than D.
301 b_pow_x_table[k + 1] = (b_pow_x_table[k] >> 1) ^ P;
302 }
303 else {
304 b_pow_x_table[k + 1] = b_pow_x_table[k] >> 1;
305 }
306 }
307 return product;
308 }
309 #undef D
310 #undef P
311
312 // A. Kadatch and B. Jenkins / Everything we know about CRC but afraid to forget September 3, 2010 9
313 void crc32c_init_pow_2k(void) {
314 // _crc32c_pow_2k_table(0) =
315 // x^(2^k) mod P(x) = x mod P(x) = x
316 // Since we are operating on a reflected values
317 // x = 10b, reflect(x) = 0x40000000
318 _crc32c_pow_2k_table[0] = 0x40000000;
319
320 for (int k = 1; k < TILL_CYCLE; k++) {
321 // _crc32c_pow_2k_table(k+1) = _crc32c_pow_2k_table(k-1)^2 mod P(x)
322 uint32_t tmp = _crc32c_pow_2k_table[k - 1];
323 _crc32c_pow_2k_table[k] = crc32c_multiply(tmp, tmp);
324 }
325 }
326
327 // x^N mod P(x)
328 uint32_t crc32c_f_pow_n(uint32_t n) {
329 // result = 1 (polynomial)
330 uint32_t one, result = 0x80000000, i = 0;
331
332 while (one = (n & 1), (n == 1 || n - one > 0)) {
333 if (one) {
334 result = crc32c_multiply(result, _crc32c_pow_2k_table[i]);
335 }
336 n >>= 1;
337 i++;
338 }
339
340 return result;
341 }
342
343 juint *StubRoutines::x86::_crc32c_table;
344
345 void StubRoutines::x86::generate_CRC32C_table(bool is_pclmulqdq_table_supported) {
346
347 static juint pow_n[CRC32C_NUM_PRECOMPUTED_CONSTANTS];
348
349 crc32c_init_pow_2k();
350
351 pow_n[0] = crc32c_f_pow_n(CRC32C_HIGH * 8); // 8N * 8 = 64N
352 pow_n[1] = crc32c_f_pow_n(CRC32C_HIGH * 8 * 2); // 128N
353
354 pow_n[2] = crc32c_f_pow_n(CRC32C_MIDDLE * 8);
355 pow_n[3] = crc32c_f_pow_n(CRC32C_MIDDLE * 8 * 2);
356
357 pow_n[4] = crc32c_f_pow_n(CRC32C_LOW * 8);
358 pow_n[CRC32C_NUM_PRECOMPUTED_CONSTANTS - 1] =
359 crc32c_f_pow_n(CRC32C_LOW * 8 * 2);
360
361 if (is_pclmulqdq_table_supported) {
362 _crc32c_table = pow_n;
363 } else {
364 static julong pclmulqdq_table[CRC32C_NUM_PRECOMPUTED_CONSTANTS * 256];
365
366 for (int j = 0; j < CRC32C_NUM_PRECOMPUTED_CONSTANTS; j++) {
367 static juint X_CONST = pow_n[j];
368 for (int64_t i = 0; i < 256; i++) { // to force 64 bit wide computations
369 // S. Gueron / Information Processing Letters 112 (2012) 184
370 // Algorithm 3: Generating a carry-less multiplication lookup table.
371 // Input: A 32-bit constant, X_CONST.
372 // Output: A table of 256 entries, each one is a 64-bit quadword,
373 // that can be used for computing "byte" * X_CONST, for a given byte.
374 pclmulqdq_table[j * 256 + i] =
375 ((i & 1) * X_CONST) ^ ((i & 2) * X_CONST) ^ ((i & 4) * X_CONST) ^
376 ((i & 8) * X_CONST) ^ ((i & 16) * X_CONST) ^ ((i & 32) * X_CONST) ^
377 ((i & 64) * X_CONST) ^ ((i & 128) * X_CONST);
378 }
379 }
380 _crc32c_table = (juint*)pclmulqdq_table;
381 }
382 }
383
384 ATTRIBUTE_ALIGNED(64) juint StubRoutines::x86::_k256[] =
385 {
386 0x428a2f98UL, 0x71374491UL, 0xb5c0fbcfUL, 0xe9b5dba5UL,
387 0x3956c25bUL, 0x59f111f1UL, 0x923f82a4UL, 0xab1c5ed5UL,
388 0xd807aa98UL, 0x12835b01UL, 0x243185beUL, 0x550c7dc3UL,
389 0x72be5d74UL, 0x80deb1feUL, 0x9bdc06a7UL, 0xc19bf174UL,
390 0xe49b69c1UL, 0xefbe4786UL, 0x0fc19dc6UL, 0x240ca1ccUL,
391 0x2de92c6fUL, 0x4a7484aaUL, 0x5cb0a9dcUL, 0x76f988daUL,
392 0x983e5152UL, 0xa831c66dUL, 0xb00327c8UL, 0xbf597fc7UL,
393 0xc6e00bf3UL, 0xd5a79147UL, 0x06ca6351UL, 0x14292967UL,
394 0x27b70a85UL, 0x2e1b2138UL, 0x4d2c6dfcUL, 0x53380d13UL,
395 0x650a7354UL, 0x766a0abbUL, 0x81c2c92eUL, 0x92722c85UL,
396 0xa2bfe8a1UL, 0xa81a664bUL, 0xc24b8b70UL, 0xc76c51a3UL,
397 0xd192e819UL, 0xd6990624UL, 0xf40e3585UL, 0x106aa070UL,
398 0x19a4c116UL, 0x1e376c08UL, 0x2748774cUL, 0x34b0bcb5UL,
399 0x391c0cb3UL, 0x4ed8aa4aUL, 0x5b9cca4fUL, 0x682e6ff3UL,
400 0x748f82eeUL, 0x78a5636fUL, 0x84c87814UL, 0x8cc70208UL,
401 0x90befffaUL, 0xa4506cebUL, 0xbef9a3f7UL, 0xc67178f2UL
402 };
403
404 #ifdef _LP64
405 // used in MacroAssembler::sha256_AVX2
406 // dynamically built from _k256
407 ATTRIBUTE_ALIGNED(64) juint StubRoutines::x86::_k256_W[2*sizeof(StubRoutines::x86::_k256)];
408
409 // used in MacroAssembler::sha512_AVX2
410 ATTRIBUTE_ALIGNED(64) julong StubRoutines::x86::_k512_W[] =
411 {
412 0x428a2f98d728ae22ULL, 0x7137449123ef65cdULL,
413 0xb5c0fbcfec4d3b2fULL, 0xe9b5dba58189dbbcULL,
414 0x3956c25bf348b538ULL, 0x59f111f1b605d019ULL,
415 0x923f82a4af194f9bULL, 0xab1c5ed5da6d8118ULL,
416 0xd807aa98a3030242ULL, 0x12835b0145706fbeULL,
417 0x243185be4ee4b28cULL, 0x550c7dc3d5ffb4e2ULL,
418 0x72be5d74f27b896fULL, 0x80deb1fe3b1696b1ULL,
419 0x9bdc06a725c71235ULL, 0xc19bf174cf692694ULL,
420 0xe49b69c19ef14ad2ULL, 0xefbe4786384f25e3ULL,
421 0x0fc19dc68b8cd5b5ULL, 0x240ca1cc77ac9c65ULL,
422 0x2de92c6f592b0275ULL, 0x4a7484aa6ea6e483ULL,
423 0x5cb0a9dcbd41fbd4ULL, 0x76f988da831153b5ULL,
424 0x983e5152ee66dfabULL, 0xa831c66d2db43210ULL,
425 0xb00327c898fb213fULL, 0xbf597fc7beef0ee4ULL,
426 0xc6e00bf33da88fc2ULL, 0xd5a79147930aa725ULL,
427 0x06ca6351e003826fULL, 0x142929670a0e6e70ULL,
428 0x27b70a8546d22ffcULL, 0x2e1b21385c26c926ULL,
429 0x4d2c6dfc5ac42aedULL, 0x53380d139d95b3dfULL,
430 0x650a73548baf63deULL, 0x766a0abb3c77b2a8ULL,
431 0x81c2c92e47edaee6ULL, 0x92722c851482353bULL,
432 0xa2bfe8a14cf10364ULL, 0xa81a664bbc423001ULL,
433 0xc24b8b70d0f89791ULL, 0xc76c51a30654be30ULL,
434 0xd192e819d6ef5218ULL, 0xd69906245565a910ULL,
435 0xf40e35855771202aULL, 0x106aa07032bbd1b8ULL,
436 0x19a4c116b8d2d0c8ULL, 0x1e376c085141ab53ULL,
437 0x2748774cdf8eeb99ULL, 0x34b0bcb5e19b48a8ULL,
438 0x391c0cb3c5c95a63ULL, 0x4ed8aa4ae3418acbULL,
439 0x5b9cca4f7763e373ULL, 0x682e6ff3d6b2b8a3ULL,
440 0x748f82ee5defb2fcULL, 0x78a5636f43172f60ULL,
441 0x84c87814a1f0ab72ULL, 0x8cc702081a6439ecULL,
442 0x90befffa23631e28ULL, 0xa4506cebde82bde9ULL,
443 0xbef9a3f7b2c67915ULL, 0xc67178f2e372532bULL,
444 0xca273eceea26619cULL, 0xd186b8c721c0c207ULL,
445 0xeada7dd6cde0eb1eULL, 0xf57d4f7fee6ed178ULL,
446 0x06f067aa72176fbaULL, 0x0a637dc5a2c898a6ULL,
447 0x113f9804bef90daeULL, 0x1b710b35131c471bULL,
448 0x28db77f523047d84ULL, 0x32caab7b40c72493ULL,
449 0x3c9ebe0a15c9bebcULL, 0x431d67c49c100d4cULL,
450 0x4cc5d4becb3e42b6ULL, 0x597f299cfc657e2aULL,
451 0x5fcb6fab3ad6faecULL, 0x6c44198c4a475817ULL,
452 };
453 #endif