chiark / gitweb /
math/...: Make a number of functions be const-correct.
[catacomb] / math / mpx-mul4-test.c
1 /* -*-c-*-
2  *
3  * Testing optimized 128-bit multipliers
4  *
5  * (c) 2017 Straylight/Edgeware
6  */
7
8 /*----- Licensing notice --------------------------------------------------*
9  *
10  * This file is part of Catacomb.
11  *
12  * Catacomb is free software; you can redistribute it and/or modify
13  * it under the terms of the GNU Library General Public License as
14  * published by the Free Software Foundation; either version 2 of the
15  * License, or (at your option) any later version.
16  *
17  * Catacomb is distributed in the hope that it will be useful,
18  * but WITHOUT ANY WARRANTY; without even the implied warranty of
19  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
20  * GNU Library General Public License for more details.
21  *
22  * You should have received a copy of the GNU Library General Public
23  * License along with Catacomb; if not, write to the Free
24  * Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
25  * MA 02111-1307, USA.
26  */
27
28 /*----- Header files ------------------------------------------------------*/
29
30 #include "config.h"
31
32 #include <assert.h>
33 #include <stdio.h>
34 #include <stdlib.h>
35 #include <string.h>
36
37 #include <mLib/macros.h>
38 #include <mLib/report.h>
39 #include <mLib/testrig.h>
40
41 #include "dispatch.h"
42 #include "mp.h"
43 #include "mpmont.h"
44 #include "mptext.h"
45
46 /*----- CPU feature detection ---------------------------------------------*/
47
48 #if CPUFAM_X86
49 #  define VARIANT _x86_sse2
50 #  define REPR_32
51 static int cpu_features_p(void) { return (cpu_feature_p(CPUFEAT_X86_SSE2)); }
52 #endif
53
54 #if CPUFAM_AMD64
55 #  define VARIANT _amd64_sse2
56 #  define REPR_32
57 static int cpu_features_p(void) { return (cpu_feature_p(CPUFEAT_X86_SSE2)); }
58 #endif
59
60 #ifndef VARIANT
61 #  error "Unsupported CPU family."
62 #endif
63
64 #ifdef REPR_32
65 #  define NWBY 4
66 #  define NDBY 8
67 #  define LDW LOAD32
68 #  define LDD LOAD64
69 #  define STW STORE32
70 #  define STD STORE64
71 typedef struct { mpw w[4]; } p128;
72 typedef struct { mpw w[8]; } x128;
73 typedef struct { mpd w[6]; } carry;
74 #endif
75
76 /*----- Test operation table ----------------------------------------------*/
77
78 #define TESTOPS(_)                                                      \
79          /*  a     c      u     x     v     y    z'    y'     c' */     \
80   _(dmul4, NIL,  CARRY, P128, P128, P128, P128, P128, NIL,  CARRY)      \
81   _(dmla4, P128, CARRY, P128, P128, P128, P128, P128, NIL,  CARRY)      \
82   _(mul4,  NIL,  CARRY, NIL,  P128, NIL,  P128, P128, NIL,  CARRY)      \
83   _(mla4,  P128, CARRY, NIL,  P128, NIL,  P128, P128, NIL,  CARRY)      \
84   _(mmul4, NIL,  NIL,   P128, P128, P128, P128, P128, X128, CARRY)      \
85   _(mmla4, P128, NIL,   P128, P128, P128, P128, P128, X128, CARRY)      \
86   _(mont4, P128, NIL,   NIL,  P128, NIL,  P128, P128, X128, CARRY)
87
88 /*----- Assembler test interface ------------------------------------------*/
89
90 #define EMPTY
91
92 #define PARAM(v, ty) ty *v,
93 #define PARAM_NIL(v, q)
94 #define PARAM_P128(v, q) PARAM(v, q p128)
95 #define PARAM_X128(v, q) PARAM(v, q x128)
96 #define PARAM_CARRY(v, q) PARAM(v, q carry)
97
98 #define DECLSTUB(fn, tya, tyc, tyu, tyx, tyv, tyy, tyzz, tyyy, tycc)    \
99   extern void test_##fn(PARAM_##tyzz(zz, EMPTY) PARAM_##tycc(cc, EMPTY) \
100                         PARAM_##tyyy(yy, EMPTY)                         \
101                         PARAM_##tyu(u, const) PARAM_##tyx(x, const)     \
102                         PARAM_##tyv(v, const) PARAM_##tyy(y, const)     \
103                         unsigned n, unsigned long long *cyv);
104 TESTOPS(DECLSTUB)
105
106 /*----- Conversion functions ----------------------------------------------*/
107
108 #define DEFTYPE(ty, ld, st, nby)                                        \
109                                                                         \
110   static void cvt_##ty(const char *buf, dstr *d)                        \
111   {                                                                     \
112     dstr dd = DSTR_INIT;                                                \
113     int i;                                                              \
114     ty *x;                                                              \
115     const octet *p;                                                     \
116                                                                         \
117     type_hex.cvt(buf, &dd);                                             \
118     if (dd.len != N(x->w)*nby) die(1, "invalid length for " #ty);       \
119     dstr_ensure(d, sizeof(*x)); d->len = sizeof(*x);                    \
120     x = (ty *)d->buf; p = (const octet *)dd.buf;                        \
121     for (i = 0; i < N(x->w); i++) { x->w[i] = ld(p); p += nby; }        \
122     dstr_destroy(&dd);                                                  \
123   }                                                                     \
124                                                                         \
125   static void dump_##ty(dstr *d, FILE *fp)                              \
126   {                                                                     \
127     dstr dd = DSTR_INIT;                                                \
128     int i;                                                              \
129     const ty *x = (const ty *)d->buf;                                   \
130     octet *p;                                                           \
131                                                                         \
132     dstr_ensure(&dd, N(x->w)*nby); p = (octet *)dd.buf;                 \
133     for (i = 0; i < N(x->w); i++) { st(p, x->w[i]); p += nby; }         \
134     dd.len = N(x->w)*nby;                                               \
135     type_hex.dump(&dd, fp);                                             \
136     dstr_destroy(&dd);                                                  \
137   }                                                                     \
138                                                                         \
139   static int eq_##ty(const ty *x, const ty *y)                          \
140   {                                                                     \
141     int i;                                                              \
142                                                                         \
143     for (i = 0; i < N(x->w); i++)                                       \
144       if (x->w[i] != y->w[i]) return (0);                               \
145     return (1);                                                         \
146   }                                                                     \
147                                                                         \
148   static const struct test_type type_##ty = { cvt_##ty, dump_##ty };
149
150 DEFTYPE(p128, LDW, STW, NWBY)
151 DEFTYPE(x128, LDW, STW, NWBY)
152 DEFTYPE(carry, LDD, STD, NDBY)
153
154 /*----- Test functions ----------------------------------------------------*/
155
156 #define DECL_IN(v, ty) \
157   dstr *d_##v = dp++; const ty *v = (const ty *)d_##v->buf;
158 #define DECL_IN_NIL(v)
159 #define DECL_IN_P128(v) DECL_IN(v, p128)
160 #define DECL_IN_X128(v) DECL_IN(v, x128)
161 #define DECL_IN_CARRY(v) DECL_IN(v, carry)
162
163 #define DECL_OUT(v, ty) \
164   dstr dd_##v = DSTR_INIT, *d_##v = &dd_##v; ty *v;
165 #define DECL_OUT_NIL(v)
166 #define DECL_OUT_P128(v) DECL_OUT(v, p128)
167 #define DECL_OUT_X128(v) DECL_OUT(v, x128)
168 #define DECL_OUT_CARRY(v) DECL_OUT(v, carry)
169
170 #define INIT_OUT(v, ty) \
171   dstr_ensure(d_##v, sizeof(ty)); v = (ty *)d_##v->buf;
172 #define INIT_OUT_NIL(v)
173 #define INIT_OUT_P128(v) INIT_OUT(v, p128)
174 #define INIT_OUT_X128(v) INIT_OUT(v, x128)
175 #define INIT_OUT_CARRY(v) INIT_OUT(v, carry)
176
177 #define ARG(v) , v
178 #define ARG_NIL(v)
179 #define ARG_P128(v) ARG(v)
180 #define ARG_X128(v) ARG(v)
181 #define ARG_CARRY(v) ARG(v)
182
183 #define CHECK(v, vv, ty) if (!eq_##ty(v, vv)) ok = 0;
184 #define CHECK_NIL(v, vv)
185 #define CHECK_P128(v, vv) CHECK(v, vv, p128)
186 #define CHECK_X128(v, vv) CHECK(v, vv, x128)
187 #define CHECK_CARRY(v, vv) CHECK(v, vv, carry)
188
189 #define DUMP(v, ty) \
190   fprintf(stderr, "\n\t%-6s = ", #v); dump_##ty(d_##v, stderr);
191 #define DUMP_NIL(v)
192 #define DUMP_P128(v) DUMP(v, p128)
193 #define DUMP_X128(v) DUMP(v, x128)
194 #define DUMP_CARRY(v) DUMP(v, carry)
195
196 #define COPY(v, vv, ty) *v = *vv;
197 #define COPY_NIL(v, vv)
198 #define COPY_P128(v, vv) COPY(v, vv, p128)
199 #define COPY_X128(v, vv) COPY(v, vv, x128)
200 #define COPY_CARRY(v, vv) COPY(v, vv, carry)
201
202 #define FREE_OUT(v, ty) dstr_destroy(d_##v);
203 #define FREE_OUT_NIL(v)
204 #define FREE_OUT_P128(v) FREE_OUT(v, p128)
205 #define FREE_OUT_X128(v) FREE_OUT(v, x128)
206 #define FREE_OUT_CARRY(v) FREE_OUT(v, carry)
207
208 #define DEFTESTFN(fn, tya, tyc, tyu, tyx, tyv, tyy, tyzz, tyyy, tycc)   \
209                                                                         \
210   static int v##fn(dstr dv[])                                           \
211   {                                                                     \
212     dstr *dp = dv;                                                      \
213     DECL_IN_##tya(a)                                                    \
214     DECL_IN_##tyc(c)                                                    \
215     DECL_IN_##tyu(u)                                                    \
216     DECL_IN_##tyx(x)                                                    \
217     DECL_IN_##tyv(v)                                                    \
218     DECL_IN_##tyy(y)                                                    \
219     DECL_IN_##tyzz(zz_exp)                                              \
220     DECL_IN_##tyyy(yy_exp)                                              \
221     DECL_IN_##tycc(cc_exp)                                              \
222     DECL_OUT_##tyzz(zz_out)                                             \
223     DECL_OUT_##tyyy(yy_out)                                             \
224     DECL_OUT_##tycc(cc_out)                                             \
225     unsigned long long cyv[1];                                          \
226     int ok = 1;                                                         \
227                                                                         \
228     INIT_OUT_##tyzz(zz_out)                                             \
229     INIT_OUT_##tyyy(yy_out)                                             \
230     INIT_OUT_##tycc(cc_out)                                             \
231                                                                         \
232     COPY_##tya(zz_out, a);                                              \
233     COPY_##tyc(cc_out, c);                                              \
234     test_##fn(zz_out ARG_##tycc(cc_out) ARG_##tyyy(yy_out)              \
235               ARG_##tyu(u) ARG_##tyx(x) ARG_##tyv(v) ARG_##tyy(y),      \
236               1, cyv);                                                  \
237     CHECK_##tyzz(zz_exp, zz_out)                                        \
238     CHECK_##tyyy(yy_exp, yy_out)                                        \
239     CHECK_##tycc(cc_exp, cc_out)                                        \
240                                                                         \
241     if (!ok) {                                                          \
242       fputs(#fn " failed", stderr);                                     \
243       DUMP_##tya(a)                                                     \
244       DUMP_##tyc(c)                                                     \
245       DUMP_##tyu(u)                                                     \
246       DUMP_##tyx(x)                                                     \
247       DUMP_##tyv(v)                                                     \
248       DUMP_##tyy(y)                                                     \
249       DUMP_##tyzz(zz_exp)                                               \
250       DUMP_##tyzz(zz_out)                                               \
251       DUMP_##tyyy(yy_exp)                                               \
252       DUMP_##tyyy(yy_out)                                               \
253       DUMP_##tycc(cc_exp)                                               \
254       DUMP_##tycc(cc_out)                                               \
255       fputc('\n', stderr);                                              \
256     }                                                                   \
257                                                                         \
258     FREE_OUT_##tyzz(zz_out);                                            \
259     FREE_OUT_##tyyy(yy_out);                                            \
260     FREE_OUT_##tycc(cc_out);                                            \
261                                                                         \
262     return (ok);                                                        \
263   }
264
265 TESTOPS(DEFTESTFN)
266
267 /*----- Main code ---------------------------------------------------------*/
268
269 #define NIL
270 #define P128 &type_p128,
271 #define X128 &type_x128,
272 #define CARRY &type_carry,
273
274 static test_chunk tests[] = {
275 #define DEFCHUNK(fn, tya, tyc, tyu, tyx, tyv, tyy, tyzz, tyyy, tycc)    \
276   { #fn, v##fn, { tya tyc tyu tyx tyv tyy tyzz tyyy tycc } },
277   TESTOPS(DEFCHUNK)
278 #undef DEFCHUNK
279   { 0, 0, { 0 } }
280 };
281
282 int main(int argc, char *argv[])
283 {
284   sub_init();
285   if (!cpu_features_p())
286     { fprintf(stderr, "required cpu feature not available\n"); exit(77); }
287   test_run(argc, argv, tests, SRCDIR "/t/mpx-mul4");
288   return (0);
289 }
290
291 /*----- That's all, folks -------------------------------------------------*/