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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 | ||
416b8869 MW |
32 | #ifdef ENABLE_ASM_DEBUG |
33 | # include "regdump.h" | |
34 | #endif | |
35 | ||
7ba379a6 MW |
36 | #include <assert.h> |
37 | #include <stdio.h> | |
38 | #include <stdlib.h> | |
39 | #include <string.h> | |
40 | ||
41 | #include <mLib/macros.h> | |
42 | #include <mLib/report.h> | |
43 | #include <mLib/testrig.h> | |
44 | ||
45 | #include "dispatch.h" | |
46 | #include "mp.h" | |
47 | #include "mpmont.h" | |
48 | #include "mptext.h" | |
49 | ||
50 | /*----- CPU feature detection ---------------------------------------------*/ | |
51 | ||
52 | #if CPUFAM_X86 | |
53 | # define VARIANT _x86_sse2 | |
54 | # define REPR_32 | |
55 | static int cpu_features_p(void) { return (cpu_feature_p(CPUFEAT_X86_SSE2)); } | |
56 | #endif | |
57 | ||
58 | #if CPUFAM_AMD64 | |
59 | # define VARIANT _amd64_sse2 | |
60 | # define REPR_32 | |
61 | static int cpu_features_p(void) { return (cpu_feature_p(CPUFEAT_X86_SSE2)); } | |
62 | #endif | |
63 | ||
ea1b3cec MW |
64 | #if CPUFAM_ARMEL |
65 | # define VARIANT _arm_neon | |
66 | # define REPR_32 | |
67 | static int cpu_features_p(void) { return (cpu_feature_p(CPUFEAT_ARM_NEON)); } | |
68 | #endif | |
69 | ||
70 | #if CPUFAM_ARM64 | |
71 | # define VARIANT _arm64_simd | |
72 | # define REPR_32 | |
73 | static int cpu_features_p(void) { return (1); } | |
74 | #endif | |
75 | ||
7ba379a6 MW |
76 | #ifndef VARIANT |
77 | # error "Unsupported CPU family." | |
78 | #endif | |
79 | ||
80 | #ifdef REPR_32 | |
81 | # define NWBY 4 | |
82 | # define NDBY 8 | |
83 | # define LDW LOAD32 | |
84 | # define LDD LOAD64 | |
85 | # define STW STORE32 | |
86 | # define STD STORE64 | |
87 | typedef struct { mpw w[4]; } p128; | |
88 | typedef struct { mpw w[8]; } x128; | |
89 | typedef struct { mpd w[6]; } carry; | |
90 | #endif | |
91 | ||
92 | /*----- Test operation table ----------------------------------------------*/ | |
93 | ||
94 | #define TESTOPS(_) \ | |
95 | /* a c u x v y z' y' c' */ \ | |
96 | _(dmul4, NIL, CARRY, P128, P128, P128, P128, P128, NIL, CARRY) \ | |
97 | _(dmla4, P128, CARRY, P128, P128, P128, P128, P128, NIL, CARRY) \ | |
98 | _(mul4, NIL, CARRY, NIL, P128, NIL, P128, P128, NIL, CARRY) \ | |
d0d41c6e | 99 | _(mul4zc,NIL, NIL, NIL, P128, NIL, P128, P128, NIL, CARRY) \ |
7ba379a6 | 100 | _(mla4, P128, CARRY, NIL, P128, NIL, P128, P128, NIL, CARRY) \ |
d0d41c6e | 101 | _(mla4zc,P128, NIL, NIL, P128, NIL, P128, P128, NIL, CARRY) \ |
7ba379a6 MW |
102 | _(mmul4, NIL, NIL, P128, P128, P128, P128, P128, X128, CARRY) \ |
103 | _(mmla4, P128, NIL, P128, P128, P128, P128, P128, X128, CARRY) \ | |
104 | _(mont4, P128, NIL, NIL, P128, NIL, P128, P128, X128, CARRY) | |
105 | ||
106 | /*----- Assembler test interface ------------------------------------------*/ | |
107 | ||
108 | #define EMPTY | |
109 | ||
110 | #define PARAM(v, ty) ty *v, | |
111 | #define PARAM_NIL(v, q) | |
112 | #define PARAM_P128(v, q) PARAM(v, q p128) | |
113 | #define PARAM_X128(v, q) PARAM(v, q x128) | |
114 | #define PARAM_CARRY(v, q) PARAM(v, q carry) | |
115 | ||
116 | #define DECLSTUB(fn, tya, tyc, tyu, tyx, tyv, tyy, tyzz, tyyy, tycc) \ | |
117 | extern void test_##fn(PARAM_##tyzz(zz, EMPTY) PARAM_##tycc(cc, EMPTY) \ | |
118 | PARAM_##tyyy(yy, EMPTY) \ | |
119 | PARAM_##tyu(u, const) PARAM_##tyx(x, const) \ | |
120 | PARAM_##tyv(v, const) PARAM_##tyy(y, const) \ | |
121 | unsigned n, unsigned long long *cyv); | |
122 | TESTOPS(DECLSTUB) | |
123 | ||
124 | /*----- Conversion functions ----------------------------------------------*/ | |
125 | ||
44cf74d5 MW |
126 | static mp *combine_mpw(mp *d, const mpw *v, size_t n, unsigned off) |
127 | { | |
128 | size_t i; | |
129 | unsigned o; | |
130 | mp m, *t = d; | |
131 | mpw w[1]; | |
132 | ||
133 | d = MP_ZERO; | |
134 | for (i = 0, o = 0; i < n; i++, o += off) { | |
135 | w[0] = v[i]; mp_build(&m, w, w + 1); | |
136 | t = mp_lsl(t, &m, o); d = mp_add(d, d, t); | |
137 | } | |
138 | mp_drop(t); return (d); | |
139 | } | |
140 | ||
141 | static mp *combine_mpd(mp *d, const mpd *v, size_t n, unsigned off) | |
142 | { | |
143 | size_t i; | |
144 | unsigned o; | |
145 | mp m, *t = d; | |
146 | mpw w[2]; | |
147 | ||
148 | d = MP_ZERO; | |
149 | for (i = 0, o = 0; i < n; i++, o += off) { | |
150 | w[0] = MPW(v[i]); w[1] = MPW(v[i] >> MPW_BITS); mp_build(&m, w, w + 2); | |
151 | t = mp_lsl(t, &m, o); d = mp_add(d, d, t); | |
152 | } | |
153 | mp_drop(t); return (d); | |
154 | } | |
155 | ||
156 | #define DEFTYPE(ty, ld, st, nby, combfn, off) \ | |
7ba379a6 MW |
157 | \ |
158 | static void cvt_##ty(const char *buf, dstr *d) \ | |
159 | { \ | |
160 | dstr dd = DSTR_INIT; \ | |
161 | int i; \ | |
162 | ty *x; \ | |
163 | const octet *p; \ | |
164 | \ | |
165 | type_hex.cvt(buf, &dd); \ | |
166 | if (dd.len != N(x->w)*nby) die(1, "invalid length for " #ty); \ | |
b00264d9 | 167 | dstr_ensure(d, sizeof(*x)); d->len = sizeof(*x); \ |
7ba379a6 MW |
168 | x = (ty *)d->buf; p = (const octet *)dd.buf; \ |
169 | for (i = 0; i < N(x->w); i++) { x->w[i] = ld(p); p += nby; } \ | |
170 | dstr_destroy(&dd); \ | |
171 | } \ | |
172 | \ | |
173 | static void dump_##ty(dstr *d, FILE *fp) \ | |
174 | { \ | |
175 | dstr dd = DSTR_INIT; \ | |
176 | int i; \ | |
177 | const ty *x = (const ty *)d->buf; \ | |
44cf74d5 | 178 | mp *xx = combfn(MP_NEW, x->w, N(x->w), off); \ |
7ba379a6 MW |
179 | octet *p; \ |
180 | \ | |
181 | dstr_ensure(&dd, N(x->w)*nby); p = (octet *)dd.buf; \ | |
182 | for (i = 0; i < N(x->w); i++) { st(p, x->w[i]); p += nby; } \ | |
183 | dd.len = N(x->w)*nby; \ | |
184 | type_hex.dump(&dd, fp); \ | |
185 | dstr_destroy(&dd); \ | |
44cf74d5 MW |
186 | \ |
187 | fputs(" = 0x", fp); mp_writefile(xx, fp, 16); \ | |
188 | fputs(" = ", fp); mp_writefile(xx, fp, 10); \ | |
189 | MP_DROP(xx); \ | |
7ba379a6 MW |
190 | } \ |
191 | \ | |
192 | static int eq_##ty(const ty *x, const ty *y) \ | |
193 | { \ | |
44cf74d5 MW |
194 | mp *xx = combfn(MP_NEW, x->w, N(x->w), off), \ |
195 | *yy = combfn(MP_NEW, y->w, N(y->w), off); \ | |
196 | int rc = MP_EQ(xx, yy); \ | |
197 | MP_DROP(xx); MP_DROP(yy); \ | |
198 | return (rc); \ | |
7ba379a6 MW |
199 | } \ |
200 | \ | |
201 | static const struct test_type type_##ty = { cvt_##ty, dump_##ty }; | |
202 | ||
44cf74d5 MW |
203 | DEFTYPE(p128, LDW, STW, NWBY, combine_mpw, MPW_BITS) |
204 | DEFTYPE(x128, LDW, STW, NWBY, combine_mpw, MPW_BITS/2) | |
205 | DEFTYPE(carry, LDD, STD, NDBY, combine_mpd, MPW_BITS/2) | |
7ba379a6 MW |
206 | |
207 | /*----- Test functions ----------------------------------------------------*/ | |
208 | ||
209 | #define DECL_IN(v, ty) \ | |
210 | dstr *d_##v = dp++; const ty *v = (const ty *)d_##v->buf; | |
211 | #define DECL_IN_NIL(v) | |
212 | #define DECL_IN_P128(v) DECL_IN(v, p128) | |
213 | #define DECL_IN_X128(v) DECL_IN(v, x128) | |
214 | #define DECL_IN_CARRY(v) DECL_IN(v, carry) | |
215 | ||
216 | #define DECL_OUT(v, ty) \ | |
217 | dstr dd_##v = DSTR_INIT, *d_##v = &dd_##v; ty *v; | |
218 | #define DECL_OUT_NIL(v) | |
219 | #define DECL_OUT_P128(v) DECL_OUT(v, p128) | |
220 | #define DECL_OUT_X128(v) DECL_OUT(v, x128) | |
221 | #define DECL_OUT_CARRY(v) DECL_OUT(v, carry) | |
222 | ||
223 | #define INIT_OUT(v, ty) \ | |
224 | dstr_ensure(d_##v, sizeof(ty)); v = (ty *)d_##v->buf; | |
225 | #define INIT_OUT_NIL(v) | |
226 | #define INIT_OUT_P128(v) INIT_OUT(v, p128) | |
227 | #define INIT_OUT_X128(v) INIT_OUT(v, x128) | |
228 | #define INIT_OUT_CARRY(v) INIT_OUT(v, carry) | |
229 | ||
230 | #define ARG(v) , v | |
231 | #define ARG_NIL(v) | |
232 | #define ARG_P128(v) ARG(v) | |
233 | #define ARG_X128(v) ARG(v) | |
234 | #define ARG_CARRY(v) ARG(v) | |
235 | ||
236 | #define CHECK(v, vv, ty) if (!eq_##ty(v, vv)) ok = 0; | |
237 | #define CHECK_NIL(v, vv) | |
238 | #define CHECK_P128(v, vv) CHECK(v, vv, p128) | |
239 | #define CHECK_X128(v, vv) CHECK(v, vv, x128) | |
240 | #define CHECK_CARRY(v, vv) CHECK(v, vv, carry) | |
241 | ||
242 | #define DUMP(v, ty) \ | |
243 | fprintf(stderr, "\n\t%-6s = ", #v); dump_##ty(d_##v, stderr); | |
244 | #define DUMP_NIL(v) | |
245 | #define DUMP_P128(v) DUMP(v, p128) | |
246 | #define DUMP_X128(v) DUMP(v, x128) | |
247 | #define DUMP_CARRY(v) DUMP(v, carry) | |
248 | ||
249 | #define COPY(v, vv, ty) *v = *vv; | |
250 | #define COPY_NIL(v, vv) | |
251 | #define COPY_P128(v, vv) COPY(v, vv, p128) | |
252 | #define COPY_X128(v, vv) COPY(v, vv, x128) | |
253 | #define COPY_CARRY(v, vv) COPY(v, vv, carry) | |
254 | ||
255 | #define FREE_OUT(v, ty) dstr_destroy(d_##v); | |
256 | #define FREE_OUT_NIL(v) | |
257 | #define FREE_OUT_P128(v) FREE_OUT(v, p128) | |
258 | #define FREE_OUT_X128(v) FREE_OUT(v, x128) | |
259 | #define FREE_OUT_CARRY(v) FREE_OUT(v, carry) | |
260 | ||
261 | #define DEFTESTFN(fn, tya, tyc, tyu, tyx, tyv, tyy, tyzz, tyyy, tycc) \ | |
262 | \ | |
263 | static int v##fn(dstr dv[]) \ | |
264 | { \ | |
265 | dstr *dp = dv; \ | |
266 | DECL_IN_##tya(a) \ | |
267 | DECL_IN_##tyc(c) \ | |
268 | DECL_IN_##tyu(u) \ | |
269 | DECL_IN_##tyx(x) \ | |
270 | DECL_IN_##tyv(v) \ | |
271 | DECL_IN_##tyy(y) \ | |
272 | DECL_IN_##tyzz(zz_exp) \ | |
273 | DECL_IN_##tyyy(yy_exp) \ | |
274 | DECL_IN_##tycc(cc_exp) \ | |
275 | DECL_OUT_##tyzz(zz_out) \ | |
276 | DECL_OUT_##tyyy(yy_out) \ | |
277 | DECL_OUT_##tycc(cc_out) \ | |
278 | unsigned long long cyv[1]; \ | |
279 | int ok = 1; \ | |
280 | \ | |
281 | INIT_OUT_##tyzz(zz_out) \ | |
282 | INIT_OUT_##tyyy(yy_out) \ | |
283 | INIT_OUT_##tycc(cc_out) \ | |
284 | \ | |
285 | COPY_##tya(zz_out, a); \ | |
286 | COPY_##tyc(cc_out, c); \ | |
287 | test_##fn(zz_out ARG_##tycc(cc_out) ARG_##tyyy(yy_out) \ | |
288 | ARG_##tyu(u) ARG_##tyx(x) ARG_##tyv(v) ARG_##tyy(y), \ | |
289 | 1, cyv); \ | |
290 | CHECK_##tyzz(zz_exp, zz_out) \ | |
291 | CHECK_##tyyy(yy_exp, yy_out) \ | |
292 | CHECK_##tycc(cc_exp, cc_out) \ | |
293 | \ | |
294 | if (!ok) { \ | |
295 | fputs(#fn " failed", stderr); \ | |
296 | DUMP_##tya(a) \ | |
297 | DUMP_##tyc(c) \ | |
298 | DUMP_##tyu(u) \ | |
299 | DUMP_##tyx(x) \ | |
300 | DUMP_##tyv(v) \ | |
301 | DUMP_##tyy(y) \ | |
302 | DUMP_##tyzz(zz_exp) \ | |
303 | DUMP_##tyzz(zz_out) \ | |
304 | DUMP_##tyyy(yy_exp) \ | |
305 | DUMP_##tyyy(yy_out) \ | |
306 | DUMP_##tycc(cc_exp) \ | |
307 | DUMP_##tycc(cc_out) \ | |
308 | fputc('\n', stderr); \ | |
309 | } \ | |
310 | \ | |
311 | FREE_OUT_##tyzz(zz_out); \ | |
312 | FREE_OUT_##tyyy(yy_out); \ | |
313 | FREE_OUT_##tycc(cc_out); \ | |
314 | \ | |
315 | return (ok); \ | |
316 | } | |
317 | ||
318 | TESTOPS(DEFTESTFN) | |
319 | ||
320 | /*----- Main code ---------------------------------------------------------*/ | |
321 | ||
322 | #define NIL | |
323 | #define P128 &type_p128, | |
324 | #define X128 &type_x128, | |
325 | #define CARRY &type_carry, | |
326 | ||
327 | static test_chunk tests[] = { | |
328 | #define DEFCHUNK(fn, tya, tyc, tyu, tyx, tyv, tyy, tyzz, tyyy, tycc) \ | |
329 | { #fn, v##fn, { tya tyc tyu tyx tyv tyy tyzz tyyy tycc } }, | |
330 | TESTOPS(DEFCHUNK) | |
331 | #undef DEFCHUNK | |
332 | { 0, 0, { 0 } } | |
333 | }; | |
334 | ||
335 | int main(int argc, char *argv[]) | |
336 | { | |
337 | sub_init(); | |
416b8869 MW |
338 | #ifdef ENABLE_ASM_DEBUG |
339 | regdump_init(); | |
340 | #endif | |
7ba379a6 MW |
341 | if (!cpu_features_p()) |
342 | { fprintf(stderr, "required cpu feature not available\n"); exit(77); } | |
1e8abdf5 | 343 | test_run(argc, argv, tests, SRCDIR "/t/mpx-mul4"); |
7ba379a6 MW |
344 | return (0); |
345 | } | |
346 | ||
347 | /*----- That's all, folks -------------------------------------------------*/ |