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