xref: /netbsd-src/external/lgpl3/gmp/dist/mpn/powerpc64/mode64/p7/gmp-mparam.h (revision 5971e316fdea024efff6be8f03536623db06833e)
1 /* POWER7 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 64
32 #define GMP_LIMB_BYTES 8
33 
34 /* 3720 MHz POWER7/SMT4 */
35 /* FFT tuning limit = 0.5 M */
36 /* Generated by tuneup.c, 2019-10-02, gcc 4.8 */
37 
38 #define MOD_1_NORM_THRESHOLD                 0  /* always */
39 #define MOD_1_UNNORM_THRESHOLD               0  /* always */
40 #define MOD_1N_TO_MOD_1_1_THRESHOLD          6
41 #define MOD_1U_TO_MOD_1_1_THRESHOLD          4
42 #define MOD_1_1_TO_MOD_1_2_THRESHOLD         8
43 #define MOD_1_2_TO_MOD_1_4_THRESHOLD        16
44 #define PREINV_MOD_1_TO_MOD_1_THRESHOLD     13
45 #define USE_PREINV_DIVREM_1                  0
46 #define DIV_QR_1N_PI1_METHOD                 1  /* 3.47% faster than 2 */
47 #define DIV_QR_1_NORM_THRESHOLD              1
48 #define DIV_QR_1_UNNORM_THRESHOLD            1
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           27
52 
53 #define DIV_1_VS_MUL_1_PERCENT             341
54 
55 #define MUL_TOOM22_THRESHOLD                22
56 #define MUL_TOOM33_THRESHOLD                71
57 #define MUL_TOOM44_THRESHOLD               196
58 #define MUL_TOOM6H_THRESHOLD               298
59 #define MUL_TOOM8H_THRESHOLD               406
60 
61 #define MUL_TOOM32_TO_TOOM43_THRESHOLD      81
62 #define MUL_TOOM32_TO_TOOM53_THRESHOLD     140
63 #define MUL_TOOM42_TO_TOOM53_THRESHOLD     132
64 #define MUL_TOOM42_TO_TOOM63_THRESHOLD     139
65 #define MUL_TOOM43_TO_TOOM54_THRESHOLD     120
66 
67 #define SQR_BASECASE_THRESHOLD               0  /* always (native) */
68 #define SQR_TOOM2_THRESHOLD                 32
69 #define SQR_TOOM3_THRESHOLD                105
70 #define SQR_TOOM4_THRESHOLD                190
71 #define SQR_TOOM6_THRESHOLD                318
72 #define SQR_TOOM8_THRESHOLD                547
73 
74 #define MULMID_TOOM42_THRESHOLD             56
75 
76 #define MULMOD_BNM1_THRESHOLD               18
77 #define SQRMOD_BNM1_THRESHOLD               20
78 
79 #define MUL_FFT_MODF_THRESHOLD             436  /* k = 5 */
80 #define MUL_FFT_TABLE3                                      \
81   { {    436, 5}, {     21, 6}, {     21, 7}, {     11, 6}, \
82     {     23, 7}, {     12, 6}, {     25, 7}, {     21, 8}, \
83     {     11, 7}, {     25, 8}, {     13, 7}, {     28, 8}, \
84     {     15, 7}, {     33, 8}, {     17, 7}, {     35, 8}, \
85     {     19, 7}, {     39, 8}, {     21, 9}, {     11, 8}, \
86     {     29, 9}, {     15, 8}, {     35, 9}, {     19, 8}, \
87     {     41, 9}, {     23, 8}, {     49, 9}, {     27,10}, \
88     {     15, 9}, {     31, 8}, {     63, 9}, {     43,10}, \
89     {     23, 9}, {     55,11}, {     15,10}, {     31, 9}, \
90     {     67,10}, {     39, 9}, {     79,10}, {     47, 9}, \
91     {     95,10}, {     55,11}, {     31,10}, {     63, 9}, \
92     {    127,10}, {     79,11}, {     47,10}, {    103,12}, \
93     {     31,11}, {     63,10}, {    135,11}, {     79,10}, \
94     {    159,11}, {     95,10}, {    191, 9}, {    383,11}, \
95     {    111,12}, {     63,11}, {    127,10}, {    255, 9}, \
96     {    511,11}, {    143,10}, {    287, 9}, {    575,11}, \
97     {    159,10}, {    319,12}, {     95,11}, {    191,10}, \
98     {    383, 9}, {    767,11}, {    207,10}, {    415,13}, \
99     {   8192,14}, {  16384,15}, {  32768,16}, {  65536,17}, \
100     { 131072,18}, { 262144,19}, { 524288,20}, {1048576,21}, \
101     {2097152,22}, {4194304,23}, {8388608,24} }
102 #define MUL_FFT_TABLE3_SIZE 83
103 #define MUL_FFT_THRESHOLD                 4736
104 
105 #define SQR_FFT_MODF_THRESHOLD             368  /* k = 5 */
106 #define SQR_FFT_TABLE3                                      \
107   { {    368, 5}, {     19, 6}, {     10, 5}, {     21, 6}, \
108     {     21, 7}, {     11, 6}, {     23, 7}, {     12, 6}, \
109     {     25, 7}, {     13, 6}, {     27, 7}, {     25, 8}, \
110     {     13, 7}, {     28, 8}, {     15, 7}, {     32, 8}, \
111     {     17, 7}, {     35, 8}, {     19, 7}, {     39, 8}, \
112     {     21, 9}, {     11, 8}, {     29, 9}, {     15, 8}, \
113     {     35, 9}, {     19, 8}, {     41, 9}, {     23, 8}, \
114     {     47, 9}, {     27,10}, {     15, 9}, {     31, 8}, \
115     {     63, 9}, {     39,10}, {     23, 9}, {     51,11}, \
116     {     15,10}, {     31, 9}, {     67,10}, {     39, 9}, \
117     {     79,10}, {     47, 9}, {     95,10}, {     55,11}, \
118     {     31,10}, {     79,11}, {     47,10}, {     95,12}, \
119     {     31,11}, {     63,10}, {    135,11}, {     79,10}, \
120     {    159, 9}, {    319,11}, {     95,10}, {    191, 9}, \
121     {    383,11}, {    111,12}, {     63,11}, {    127,10}, \
122     {    255, 9}, {    511,11}, {    143,10}, {    287, 9}, \
123     {    575,10}, {    303,11}, {    159,10}, {    319, 9}, \
124     {    639,12}, {     95,11}, {    191,10}, {    383, 9}, \
125     {    767,13}, {   8192,14}, {  16384,15}, {  32768,16}, \
126     {  65536,17}, { 131072,18}, { 262144,19}, { 524288,20}, \
127     {1048576,21}, {2097152,22}, {4194304,23}, {8388608,24} }
128 #define SQR_FFT_TABLE3_SIZE 84
129 #define SQR_FFT_THRESHOLD                 3264
130 
131 #define MULLO_BASECASE_THRESHOLD             3
132 #define MULLO_DC_THRESHOLD                  35
133 #define MULLO_MUL_N_THRESHOLD             9449
134 #define SQRLO_BASECASE_THRESHOLD             3
135 #define SQRLO_DC_THRESHOLD                 119
136 #define SQRLO_SQR_THRESHOLD               6440
137 
138 #define DC_DIV_QR_THRESHOLD                 33
139 #define DC_DIVAPPR_Q_THRESHOLD             124
140 #define DC_BDIV_QR_THRESHOLD                62
141 #define DC_BDIV_Q_THRESHOLD                144
142 
143 #define INV_MULMOD_BNM1_THRESHOLD           67
144 #define INV_NEWTON_THRESHOLD               123
145 #define INV_APPR_THRESHOLD                 123
146 
147 #define BINV_NEWTON_THRESHOLD              284
148 #define REDC_1_TO_REDC_2_THRESHOLD          18
149 #define REDC_2_TO_REDC_N_THRESHOLD         109
150 
151 #define MU_DIV_QR_THRESHOLD               1387
152 #define MU_DIVAPPR_Q_THRESHOLD            1334
153 #define MUPI_DIV_QR_THRESHOLD               50
154 #define MU_BDIV_QR_THRESHOLD              1308
155 #define MU_BDIV_Q_THRESHOLD               1499
156 
157 #define POWM_SEC_TABLE  1,23,121,579,642
158 
159 #define GET_STR_DC_THRESHOLD                11
160 #define GET_STR_PRECOMPUTE_THRESHOLD        18
161 #define SET_STR_DC_THRESHOLD              1562
162 #define SET_STR_PRECOMPUTE_THRESHOLD      3100
163 
164 #define FAC_DSC_THRESHOLD                  774
165 #define FAC_ODD_THRESHOLD                   25
166 
167 #define MATRIX22_STRASSEN_THRESHOLD         18
168 #define HGCD2_DIV1_METHOD                    5  /* 3.27% faster than 3 */
169 #define HGCD_THRESHOLD                     118
170 #define HGCD_APPR_THRESHOLD                150
171 #define HGCD_REDUCE_THRESHOLD             3014
172 #define GCD_DC_THRESHOLD                   386
173 #define GCDEXT_DC_THRESHOLD                365
174 #define JACOBI_BASE_METHOD                   4  /* 27.64% faster than 1 */
175