xref: /netbsd-src/external/lgpl3/gmp/dist/mpn/x86/silvermont/gmp-mparam.h (revision 72c7faa4dbb41dbb0238d6b4a109da0d4b236dd4)
1 /* Intel Silvermont/32 gmp-mparam.h -- Compiler/machine parameter header file.
2 
3 Copyright 2019 Free Software Foundation, Inc.
4 
5 This file is part of the GNU MP Library.
6 
7 The GNU MP Library is free software; you can redistribute it and/or modify
8 it under the terms of either:
9 
10   * the GNU Lesser General Public License as published by the Free
11     Software Foundation; either version 3 of the License, or (at your
12     option) any later version.
13 
14 or
15 
16   * the GNU General Public License as published by the Free Software
17     Foundation; either version 2 of the License, or (at your option) any
18     later version.
19 
20 or both in parallel, as here.
21 
22 The GNU MP Library is distributed in the hope that it will be useful, but
23 WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
24 or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
25 for more details.
26 
27 You should have received copies of the GNU General Public License and the
28 GNU Lesser General Public License along with the GNU MP Library.  If not,
29 see https://www.gnu.org/licenses/.  */
30 
31 #define GMP_LIMB_BITS 32
32 #define GMP_LIMB_BYTES 4
33 
34 /* 2400 MHz Intel Atom C2758 Silvermont/Rangeley */
35 /* FFT tuning limit = 67,000,000 */
36 /* Generated by tuneup.c, 2019-10-30, gcc 8.3 */
37 
38 #define MOD_1_NORM_THRESHOLD                 3
39 #define MOD_1_UNNORM_THRESHOLD               5
40 #define MOD_1N_TO_MOD_1_1_THRESHOLD          9
41 #define MOD_1U_TO_MOD_1_1_THRESHOLD          5
42 #define MOD_1_1_TO_MOD_1_2_THRESHOLD        11
43 #define MOD_1_2_TO_MOD_1_4_THRESHOLD         0  /* never mpn_mod_1s_2p */
44 #define PREINV_MOD_1_TO_MOD_1_THRESHOLD     16
45 #define USE_PREINV_DIVREM_1                  1  /* native */
46 #define DIV_QR_1N_PI1_METHOD                 1  /* 64.62% faster than 2 */
47 #define DIV_QR_1_NORM_THRESHOLD          MP_SIZE_T_MAX  /* never */
48 #define DIV_QR_1_UNNORM_THRESHOLD        MP_SIZE_T_MAX  /* never */
49 #define DIV_QR_2_PI2_THRESHOLD           MP_SIZE_T_MAX  /* never */
50 #define DIVEXACT_1_THRESHOLD                 0  /* always (native) */
51 #define BMOD_1_TO_MOD_1_THRESHOLD           32
52 
53 #define DIV_1_VS_MUL_1_PERCENT             204
54 
55 #define MUL_TOOM22_THRESHOLD                26
56 #define MUL_TOOM33_THRESHOLD               105
57 #define MUL_TOOM44_THRESHOLD               236
58 #define MUL_TOOM6H_THRESHOLD               351
59 #define MUL_TOOM8H_THRESHOLD               502
60 
61 #define MUL_TOOM32_TO_TOOM43_THRESHOLD     105
62 #define MUL_TOOM32_TO_TOOM53_THRESHOLD     163
63 #define MUL_TOOM42_TO_TOOM53_THRESHOLD     137
64 #define MUL_TOOM42_TO_TOOM63_THRESHOLD     174
65 #define MUL_TOOM43_TO_TOOM54_THRESHOLD     215
66 
67 #define SQR_BASECASE_THRESHOLD               0  /* always (native) */
68 #define SQR_TOOM2_THRESHOLD                 36
69 #define SQR_TOOM3_THRESHOLD                138
70 #define SQR_TOOM4_THRESHOLD                360
71 #define SQR_TOOM6_THRESHOLD                494
72 #define SQR_TOOM8_THRESHOLD                620
73 
74 #define MULMID_TOOM42_THRESHOLD             58
75 
76 #define MULMOD_BNM1_THRESHOLD               15
77 #define SQRMOD_BNM1_THRESHOLD               19
78 
79 #define MUL_FFT_MODF_THRESHOLD             460  /* k = 5 */
80 #define MUL_FFT_TABLE3                                      \
81   { {    460, 5}, {     21, 6}, {     11, 5}, {     23, 6}, \
82     {     12, 5}, {     25, 6}, {     13, 5}, {     27, 6}, \
83     {     21, 7}, {     11, 6}, {     25, 7}, {     13, 6}, \
84     {     27, 7}, {     15, 6}, {     31, 7}, {     17, 6}, \
85     {     35, 7}, {     19, 6}, {     39, 7}, {     21, 8}, \
86     {     11, 7}, {     27, 8}, {     15, 7}, {     35, 8}, \
87     {     19, 7}, {     41, 8}, {     23, 7}, {     47, 8}, \
88     {     27, 9}, {     15, 8}, {     31, 7}, {     63, 8}, \
89     {     39, 9}, {     23, 8}, {     51,10}, {     15, 9}, \
90     {     31, 8}, {     67, 9}, {     39, 8}, {     79, 9}, \
91     {     47, 8}, {     95,10}, {     31, 9}, {     79,10}, \
92     {     47, 9}, {     95,11}, {     31,10}, {     63, 9}, \
93     {    135,10}, {     79, 9}, {    159,10}, {     95,11}, \
94     {     63,10}, {    127, 9}, {    255,10}, {    143, 9}, \
95     {    287,10}, {    159,11}, {     95,10}, {    191,12}, \
96     {     63,11}, {    127,10}, {    255, 9}, {    511,10}, \
97     {    271, 9}, {    543,10}, {    287, 9}, {    575,11}, \
98     {    159,10}, {    319, 9}, {    639,10}, {    335, 9}, \
99     {    671,10}, {    351, 9}, {    703,11}, {    191,10}, \
100     {    383, 9}, {    767,10}, {    415, 9}, {    831,12}, \
101     {    127,11}, {    255,10}, {    543, 9}, {   1087,11}, \
102     {    287,10}, {    607, 9}, {   1215,11}, {    319,10}, \
103     {    671,11}, {    351,10}, {    735,12}, {    191,11}, \
104     {    383,10}, {    767,11}, {    415,10}, {    831,13}, \
105     {    127,12}, {    255,11}, {    543,10}, {   1087,11}, \
106     {    607,10}, {   1215,12}, {    319,11}, {    671,10}, \
107     {   1343,11}, {    735,10}, {   1471,12}, {    383,11}, \
108     {    863,10}, {   1727,12}, {    447,11}, {    959,13}, \
109     {    255,12}, {    511,11}, {   1087,12}, {    575,11}, \
110     {   1215,10}, {   2431,12}, {    639,11}, {   1343,12}, \
111     {    703,11}, {   1471,13}, {    383,12}, {    767,11}, \
112     {   1535,12}, {    831,11}, {   1727,10}, {   3455,12}, \
113     {    959,11}, {   1919,14}, {    255,13}, {    511,12}, \
114     {   1215,11}, {   2431,13}, {    639,12}, {   1471,11}, \
115     {   2943,13}, {    767,12}, {   1727,11}, {   3455,13}, \
116     {    895,12}, {   1919,14}, {    511,13}, {   1023,12}, \
117     {   2111,13}, {   1151,12}, {   2431,13}, {   1407,12}, \
118     {   2943,14}, {    767,13}, {   1663,12}, {   3455,13}, \
119     {   1919,15}, {    511,14}, {   1023,13}, {   2175,12}, \
120     {   4479,13}, {   2431,14}, {   1279,13}, {   2943,12}, \
121     {   5887,14}, {   1535,13}, {   3455,14}, {   1791,13}, \
122     {   3967,12}, {   7935,15}, {   1023,14}, {   2047,13}, \
123     {   4479,14}, {   2303,13}, {   4991,12}, {   9983,14}, \
124     {   2815,13}, {   5887,15}, {   1535,14}, {   3839,13}, \
125     {   7935,16} }
126 #define MUL_FFT_TABLE3_SIZE 177
127 #define MUL_FFT_THRESHOLD                 4544
128 
129 #define SQR_FFT_MODF_THRESHOLD             400  /* k = 5 */
130 #define SQR_FFT_TABLE3                                      \
131   { {    400, 5}, {     21, 6}, {     11, 5}, {     23, 6}, \
132     {     12, 5}, {     25, 6}, {     13, 5}, {     28, 6}, \
133     {     21, 7}, {     11, 6}, {     25, 7}, {     13, 6}, \
134     {     28, 7}, {     15, 6}, {     32, 7}, {     17, 6}, \
135     {     35, 7}, {     19, 6}, {     39, 7}, {     21, 8}, \
136     {     11, 7}, {     27, 8}, {     15, 7}, {     35, 8}, \
137     {     19, 7}, {     41, 8}, {     23, 7}, {     47, 8}, \
138     {     27, 9}, {     15, 8}, {     31, 7}, {     63, 8}, \
139     {     39, 9}, {     23, 8}, {     51,10}, {     15, 9}, \
140     {     31, 8}, {     67, 9}, {     39, 8}, {     79, 9}, \
141     {     55,10}, {     31, 9}, {     79,10}, {     47, 9}, \
142     {     95,11}, {     31,10}, {     63, 9}, {    127,10}, \
143     {     79, 9}, {    159,10}, {     95,11}, {     63,10}, \
144     {    127, 9}, {    255,10}, {    143, 9}, {    287, 8}, \
145     {    575,10}, {    159,11}, {     95,12}, {     63,11}, \
146     {    127,10}, {    255, 9}, {    511,10}, {    271, 9}, \
147     {    543,10}, {    287, 9}, {    575,11}, {    159,10}, \
148     {    319, 9}, {    639,10}, {    335, 9}, {    671,10}, \
149     {    351, 9}, {    735,11}, {    191,10}, {    383, 9}, \
150     {    799,10}, {    415, 9}, {    831,11}, {    223,12}, \
151     {    127,11}, {    255,10}, {    543, 9}, {   1087,11}, \
152     {    287,10}, {    607, 9}, {   1215,11}, {    319,10}, \
153     {    671,11}, {    351,10}, {    735, 9}, {   1471,12}, \
154     {    191,11}, {    383,10}, {    799,11}, {    415,10}, \
155     {    863,13}, {    127,12}, {    255,11}, {    543,10}, \
156     {   1087,11}, {    607,10}, {   1215,12}, {    319,11}, \
157     {    671,10}, {   1343,11}, {    735,10}, {   1471,12}, \
158     {    383,11}, {    863,10}, {   1727,12}, {    447,11}, \
159     {    959,13}, {    255,12}, {    511,11}, {   1087,12}, \
160     {    575,11}, {   1215,10}, {   2431,12}, {    639,11}, \
161     {   1343,12}, {    703,11}, {   1471,13}, {    383,12}, \
162     {    767,11}, {   1535,12}, {    831,11}, {   1727,12}, \
163     {    959,14}, {    255,13}, {    511,12}, {   1215,11}, \
164     {   2431,13}, {    639,12}, {   1471,11}, {   2943,13}, \
165     {    767,12}, {   1727,11}, {   3455,13}, {    895,12}, \
166     {   1919,14}, {    511,13}, {   1023,12}, {   2111,13}, \
167     {   1151,12}, {   2431,13}, {   1407,12}, {   2943,14}, \
168     {    767,13}, {   1663,12}, {   3455,13}, {   1919,15}, \
169     {    511,14}, {   1023,13}, {   2175,12}, {   4479,13}, \
170     {   2431,14}, {   1279,13}, {   2943,12}, {   5887,14}, \
171     {   1535,13}, {   3455,14}, {   1791,13}, {   3967,15}, \
172     {   1023,14}, {   2047,13}, {   4479,14}, {   2303,13}, \
173     {   4991,12}, {   9983,14}, {   2815,13}, {   5887,15}, \
174     {   1535,14}, {   3839,13}, {   7679,16} }
175 #define SQR_FFT_TABLE3_SIZE 175
176 #define SQR_FFT_THRESHOLD                 3712
177 
178 #define MULLO_BASECASE_THRESHOLD             0  /* always */
179 #define MULLO_DC_THRESHOLD                  56
180 #define MULLO_MUL_N_THRESHOLD             8907
181 #define SQRLO_BASECASE_THRESHOLD             0  /* always */
182 #define SQRLO_DC_THRESHOLD                 137
183 #define SQRLO_SQR_THRESHOLD               7373
184 
185 #define DC_DIV_QR_THRESHOLD                 76
186 #define DC_DIVAPPR_Q_THRESHOLD             336
187 #define DC_BDIV_QR_THRESHOLD                66
188 #define DC_BDIV_Q_THRESHOLD                218
189 
190 #define INV_MULMOD_BNM1_THRESHOLD           50
191 #define INV_NEWTON_THRESHOLD               345
192 #define INV_APPR_THRESHOLD                 342
193 
194 #define BINV_NEWTON_THRESHOLD              366
195 #define REDC_1_TO_REDC_N_THRESHOLD          91
196 
197 #define MU_DIV_QR_THRESHOLD               1652
198 #define MU_DIVAPPR_Q_THRESHOLD            1858
199 #define MUPI_DIV_QR_THRESHOLD              171
200 #define MU_BDIV_QR_THRESHOLD              1442
201 #define MU_BDIV_Q_THRESHOLD               1830
202 
203 #define POWM_SEC_TABLE  3,17,102,404,1185
204 
205 #define GET_STR_DC_THRESHOLD                14
206 #define GET_STR_PRECOMPUTE_THRESHOLD        21
207 #define SET_STR_DC_THRESHOLD               272
208 #define SET_STR_PRECOMPUTE_THRESHOLD       788
209 
210 #define FAC_DSC_THRESHOLD                  132
211 #define FAC_ODD_THRESHOLD                   34
212 
213 #define MATRIX22_STRASSEN_THRESHOLD         19
214 #define HGCD2_DIV1_METHOD                    1  /* 0.59% faster than 3 */
215 #define HGCD_THRESHOLD                     142
216 #define HGCD_APPR_THRESHOLD                181
217 #define HGCD_REDUCE_THRESHOLD             2681
218 #define GCD_DC_THRESHOLD                   492
219 #define GCDEXT_DC_THRESHOLD                365
220 #define JACOBI_BASE_METHOD                   1  /* 0.41% faster than 2 */
221 
222 /* Tuneup completed successfully, took 147027 seconds */
223