xref: /netbsd-src/external/lgpl3/gmp/dist/mpn/s390_32/gmp-mparam.h (revision 9573673d78c64ea1eac42d7f2e9521be89932ae5)
1 /* S/390-32 gmp-mparam.h -- Compiler/machine parameter header file.
2 
3 Copyright 1991, 1993, 1994, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007,
4 2008, 2009, 2010, 2011 Free Software Foundation, Inc.
5 
6 This file is part of the GNU MP Library.
7 
8 The GNU MP Library is free software; you can redistribute it and/or modify
9 it under the terms of the GNU Lesser General Public License as published by
10 the Free Software Foundation; either version 3 of the License, or (at your
11 option) any later version.
12 
13 The GNU MP Library is distributed in the hope that it will be useful, but
14 WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
15 or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public
16 License for more details.
17 
18 You should have received a copy of the GNU Lesser General Public License
19 along with the GNU MP Library.  If not, see http://www.gnu.org/licenses/.  */
20 
21 #define GMP_LIMB_BITS 32
22 #define BYTES_PER_MP_LIMB 4
23 
24 /* 770 MHz IBM z900 running in 32-bit mode, using just traditional insns */
25 
26 #define DIVREM_1_NORM_THRESHOLD              0  /* always */
27 #define DIVREM_1_UNNORM_THRESHOLD            5
28 #define MOD_1_1P_METHOD                      2
29 #define MOD_1_NORM_THRESHOLD                 0  /* always */
30 #define MOD_1_UNNORM_THRESHOLD               5
31 #define MOD_1N_TO_MOD_1_1_THRESHOLD      MP_SIZE_T_MAX  /* never */
32 #define MOD_1U_TO_MOD_1_1_THRESHOLD         15
33 #define MOD_1_1_TO_MOD_1_2_THRESHOLD         0  /* never mpn_mod_1_1p */
34 #define MOD_1_2_TO_MOD_1_4_THRESHOLD        30
35 #define PREINV_MOD_1_TO_MOD_1_THRESHOLD  MP_SIZE_T_MAX  /* never */
36 #define USE_PREINV_DIVREM_1                  1
37 #define DIV_QR_2_PI2_THRESHOLD           MP_SIZE_T_MAX  /* never */
38 #define DIVEXACT_1_THRESHOLD                 0  /* always */
39 #define BMOD_1_TO_MOD_1_THRESHOLD        MP_SIZE_T_MAX  /* never */
40 
41 #define MUL_TOOM22_THRESHOLD                19
42 #define MUL_TOOM33_THRESHOLD               114
43 #define MUL_TOOM44_THRESHOLD               166
44 #define MUL_TOOM6H_THRESHOLD               226
45 #define MUL_TOOM8H_THRESHOLD               333
46 
47 #define MUL_TOOM32_TO_TOOM43_THRESHOLD     106
48 #define MUL_TOOM32_TO_TOOM53_THRESHOLD     122
49 #define MUL_TOOM42_TO_TOOM53_THRESHOLD     105
50 #define MUL_TOOM42_TO_TOOM63_THRESHOLD     113
51 
52 #define SQR_BASECASE_THRESHOLD               7
53 #define SQR_TOOM2_THRESHOLD                 40
54 #define SQR_TOOM3_THRESHOLD                126
55 #define SQR_TOOM4_THRESHOLD                192
56 #define SQR_TOOM6_THRESHOLD                246
57 #define SQR_TOOM8_THRESHOLD                357
58 
59 #define MULMID_TOOM42_THRESHOLD             28
60 
61 #define MULMOD_BNM1_THRESHOLD               12
62 #define SQRMOD_BNM1_THRESHOLD               18
63 
64 #define MUL_FFT_MODF_THRESHOLD             244  /* k = 5 */
65 #define MUL_FFT_TABLE3                                      \
66   { {    244, 5}, {     13, 6}, {      7, 5}, {     15, 6}, \
67     {      8, 5}, {     17, 6}, {     13, 7}, {      7, 6}, \
68     {     16, 7}, {      9, 6}, {     19, 7}, {     11, 6}, \
69     {     23, 7}, {     13, 8}, {      7, 7}, {     19, 8}, \
70     {     11, 7}, {     25, 9}, {      7, 8}, {     15, 7}, \
71     {     33, 8}, {     19, 7}, {     39, 8}, {     23, 7}, \
72     {     47, 8}, {     27, 9}, {     15, 8}, {     39, 9}, \
73     {     23, 8}, {     47,10}, {     15, 9}, {     31, 8}, \
74     {     63, 9}, {     39, 8}, {     79, 9}, {     47,10}, \
75     {     31, 9}, {     63, 8}, {    127, 9}, {     71, 8}, \
76     {    143, 9}, {     79,10}, {     47,11}, {   2048,12}, \
77     {   4096,13}, {   8192,14}, {  16384,15}, {  32768,16} }
78 #define MUL_FFT_TABLE3_SIZE 48
79 #define MUL_FFT_THRESHOLD                 2688
80 
81 #define SQR_FFT_MODF_THRESHOLD             216  /* k = 5 */
82 #define SQR_FFT_TABLE3                                      \
83   { {    216, 5}, {      7, 4}, {     15, 5}, {     17, 6}, \
84     {     13, 7}, {      7, 6}, {     17, 7}, {      9, 6}, \
85     {     20, 7}, {     11, 6}, {     23, 7}, {     13, 8}, \
86     {      7, 7}, {     19, 8}, {     11, 7}, {     25, 9}, \
87     {      7, 8}, {     15, 7}, {     33, 8}, {     19, 7}, \
88     {     39, 8}, {     23, 9}, {     15, 8}, {     39, 9}, \
89     {     23, 8}, {     47,10}, {     15, 9}, {     31, 8}, \
90     {     63, 9}, {     39, 8}, {     79, 9}, {     47,10}, \
91     {     31, 9}, {     63, 8}, {    127, 9}, {     71, 8}, \
92     {    143, 9}, {     79,10}, {     47,11}, {   2048,12}, \
93     {   4096,13}, {   8192,14}, {  16384,15}, {  32768,16} }
94 #define SQR_FFT_TABLE3_SIZE 44
95 #define SQR_FFT_THRESHOLD                 1856
96 
97 #define MULLO_BASECASE_THRESHOLD             0  /* always */
98 #define MULLO_DC_THRESHOLD                  61
99 #define MULLO_MUL_N_THRESHOLD             5240
100 
101 #define DC_DIV_QR_THRESHOLD                 70
102 #define DC_DIVAPPR_Q_THRESHOLD             234
103 #define DC_BDIV_QR_THRESHOLD                59
104 #define DC_BDIV_Q_THRESHOLD                137
105 
106 #define INV_MULMOD_BNM1_THRESHOLD           36
107 #define INV_NEWTON_THRESHOLD               327
108 #define INV_APPR_THRESHOLD                 268
109 
110 #define BINV_NEWTON_THRESHOLD              324
111 #define REDC_1_TO_REDC_N_THRESHOLD          63
112 
113 #define MU_DIV_QR_THRESHOLD               1099
114 #define MU_DIVAPPR_Q_THRESHOLD            1360
115 #define MUPI_DIV_QR_THRESHOLD              138
116 #define MU_BDIV_QR_THRESHOLD               889
117 #define MU_BDIV_Q_THRESHOLD               1234
118 
119 #define MATRIX22_STRASSEN_THRESHOLD         18
120 #define HGCD_THRESHOLD                     167
121 #define GCD_DC_THRESHOLD                   518
122 #define GCDEXT_DC_THRESHOLD                378
123 #define JACOBI_BASE_METHOD                   2
124 
125 #define GET_STR_DC_THRESHOLD                14
126 #define GET_STR_PRECOMPUTE_THRESHOLD        25
127 #define SET_STR_DC_THRESHOLD               577
128 #define SET_STR_PRECOMPUTE_THRESHOLD      1217
129