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[committed][RISC-V][PR target/114139] Verify we have a CONST_INT before extracting...
[official-gcc.git] / gcc / testsuite / g++.dg / compat / struct-layout-1_generate.c
blobe9ece645cd079b67dba85c2ddae68ea6cd02e9f3
1 /* Structure layout test generator.
2 Copyright (C) 2004-2020
3 Free Software Foundation, Inc.
4 Contributed by Jakub Jelinek <jakub@redhat.com>.
5
6 This file is part of GCC.
7
8 GCC is free software; you can redistribute it and/or modify it under
9 the terms of the GNU General Public License as published by the Free
10 Software Foundation; either version 3, or (at your option) any later
11 version.
12
13 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
14 WARRANTY; without even the implied warranty of MERCHANTABILITY or
15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
16 for more details.
17
18 You should have received a copy of the GNU General Public License
19 along with GCC; see the file COPYING3. If not see
20 <http://www.gnu.org/licenses/>. */
21
22
23 /* Compile with gcc -o struct-layout-1_generate{,.c} generate_random{,_r}.c */
24
25 /* N.B. -- This program cannot use libiberty as that will not work
26 when testing an installed compiler. */
27 #include <limits.h>
28 #include <stdio.h>
29 #include <stdlib.h>
30 #include <string.h>
31 #include <stddef.h>
32 /* We use our own pseudo-random number generator, so that it gives the same
33 values on all hosts. */
34 #include "../../gcc.dg/compat/generate-random.h"
35
36 #if LLONG_MAX != 9223372036854775807LL && __LONG_LONG_MAX__ != 9223372036854775807LL
37 # error Need 64-bit long long
38 #endif
39
40 #if defined __MSVCRT__
41 #define COMPAT_PRLL "I64"
42 #else
43 #define COMPAT_PRLL "ll"
44 #endif
45
46 const char *dg_options[] = {
47 "/* { dg-options \"%s%s-I%s -Wno-abi\" } */\n",
48 "/* { dg-options \"%s%s-I%s -mno-mmx -Wno-abi\" { target i?86-*-* x86_64-*-* } } */\n",
49 "/* { dg-options \"%s%s-I%s -fno-common\" { target hppa*-*-hpux* powerpc*-*-darwin* *-*-mingw32* *-*-cygwin* } } */\n",
50 "/* { dg-options \"%s%s-I%s -mno-mmx -fno-common -Wno-abi\" { target i?86-*-darwin* x86_64-*-darwin* i?86-*-mingw32* x86_64-*-mingw32* i?86-*-cygwin* } } */\n",
51 "/* { dg-options \"%s%s-I%s -mno-base-addresses\" { target mmix-*-* } } */\n",
52 "/* { dg-options \"%s%s-I%s -mlongcalls -mtext-section-literals\" { target xtensa*-*-* } } */\n"
53 #define NDG_OPTIONS (sizeof (dg_options) / sizeof (dg_options[0]))
54 };
55
56 typedef unsigned int hashval_t;
57
58 enum TYPE
59 {
60 TYPE_INT,
61 TYPE_UINT,
62 TYPE_FLOAT,
63 TYPE_SENUM,
64 TYPE_UENUM,
65 TYPE_PTR,
66 TYPE_FNPTR,
67 TYPE_OTHER
68 };
69
70 struct types
71 {
72 const char *name;
73 enum TYPE type;
74 unsigned long long int maxval;
75 char bitfld;
76 };
77
78 struct types base_types[] = {
79 /* As we don't know whether char will be signed or not, just limit ourselves
80 to unsigned values less than maximum signed char value. */
81 { "char", TYPE_UINT, 127, 'C' },
82 { "signed char", TYPE_INT, 127, 'C' },
83 { "unsigned char", TYPE_UINT, 255, 'C' },
84 { "short int", TYPE_INT, 32767, 'S' },
85 { "unsigned short int", TYPE_UINT, 65535, 'S' },
86 { "int", TYPE_INT, 2147483647, 'I' },
87 { "unsigned int", TYPE_UINT, 4294967295U, 'I' },
88 { "long int", TYPE_INT, 9223372036854775807LL, 'L' },
89 { "unsigned long int", TYPE_UINT, 18446744073709551615ULL, 'L' },
90 { "long long int", TYPE_INT, 9223372036854775807LL, 'Q' },
91 { "unsigned long long int", TYPE_UINT, 18446744073709551615ULL, 'Q' },
92 { "bool", TYPE_UINT, 1, 'B' },
93 { "void *", TYPE_PTR, 0, 0 },
94 { "char *", TYPE_PTR, 0, 0 },
95 { "int *", TYPE_PTR, 0, 0 },
96 { "float", TYPE_FLOAT, 0, 0 },
97 { "double", TYPE_FLOAT, 0, 0 },
98 { "long double", TYPE_FLOAT, 0, 0 },
99 #define NTYPES1 18
100 { "Tchar", TYPE_UINT, 127, 'C' },
101 { "Tschar", TYPE_INT, 127, 'C' },
102 { "Tuchar", TYPE_UINT, 255, 'C' },
103 { "Tshort", TYPE_INT, 32767, 'S' },
104 { "Tushort", TYPE_UINT, 65535, 'S' },
105 { "Tint", TYPE_INT, 2147483647, 'I' },
106 { "Tuint", TYPE_UINT, 4294967295U, 'I' },
107 { "Tlong", TYPE_INT, 9223372036854775807LL, 'L' },
108 { "Tulong", TYPE_UINT, 18446744073709551615ULL, 'L' },
109 { "Tllong", TYPE_INT, 9223372036854775807LL, 'Q' },
110 { "Tullong", TYPE_UINT, 18446744073709551615ULL, 'Q' },
111 { "Tbool", TYPE_UINT, 1, 'B' },
112 { "size_t", TYPE_UINT, 18446744073709551615ULL, 0 },
113 { "Tptr", TYPE_PTR, 0, 0 },
114 { "Tcptr", TYPE_PTR, 0, 0 },
115 { "Tiptr", TYPE_PTR, 0, 0 },
116 { "Tfnptr", TYPE_FNPTR, 0, 0 },
117 { "Tfloat", TYPE_FLOAT, 0, 0 },
118 { "Tdouble", TYPE_FLOAT, 0, 0 },
119 { "Tldouble", TYPE_FLOAT, 0, 0 },
120 { "enum E0", TYPE_UENUM, 0, ' ' },
121 { "enum E1", TYPE_UENUM, 1, ' ' },
122 { "enum E2", TYPE_SENUM, 3, ' ' },
123 { "enum E3", TYPE_SENUM, 127, ' ' },
124 { "enum E4", TYPE_UENUM, 255, ' ' },
125 { "enum E5", TYPE_SENUM, 32767, ' ' },
126 { "enum E6", TYPE_UENUM, 65535, ' ' },
127 { "enum E7", TYPE_SENUM, 2147483647, ' ' },
128 { "enum E8", TYPE_UENUM, 4294967295U, ' ' },
129 { "enum E9", TYPE_SENUM, 1099511627775LL, ' ' },
130 { "TE0", TYPE_UENUM, 0, ' ' },
131 { "TE1", TYPE_UENUM, 1, ' ' },
132 { "TE2", TYPE_SENUM, 3, ' ' },
133 { "TE3", TYPE_SENUM, 127, ' ' },
134 { "TE4", TYPE_UENUM, 255, ' ' },
135 { "TE5", TYPE_SENUM, 32767, ' ' },
136 { "TE6", TYPE_UENUM, 65535, ' ' },
137 { "TE7", TYPE_SENUM, 2147483647, ' ' },
138 { "TE8", TYPE_UENUM, 4294967295U, ' ' },
139 { "TE9", TYPE_SENUM, 1099511627775LL, ' ' },
140 /* vector-defs.h typedefs */
141 { "qi", TYPE_INT, 127, 0 },
142 { "hi", TYPE_INT, 32767, 0 },
143 { "si", TYPE_INT, 2147483647, 0 },
144 { "di", TYPE_INT, 9223372036854775807LL, 0 },
145 { "sf", TYPE_FLOAT, 0, 0 },
146 { "df", TYPE_FLOAT, 0, 0 }
147 #define NTYPES2 (sizeof (base_types) / sizeof (base_types[0]))
148 };
149 struct types vector_types[] = {
150 /* vector-defs.h typedefs */
151 { "v8qi", TYPE_OTHER, 0, 0 },
152 { "v16qi", TYPE_OTHER, 0, 0 },
153 { "v2hi", TYPE_OTHER, 0, 0 },
154 { "v4hi", TYPE_OTHER, 0, 0 },
155 { "v8hi", TYPE_OTHER, 0, 0 },
156 { "v2si", TYPE_OTHER, 0, 0 },
157 { "v4si", TYPE_OTHER, 0, 0 },
158 { "v1di", TYPE_OTHER, 0, 0 },
159 { "v2di", TYPE_OTHER, 0, 0 },
160 { "v2sf", TYPE_OTHER, 0, 0 },
161 { "v4sf", TYPE_OTHER, 0, 0 },
162 { "v16sf", TYPE_OTHER, 0, 0 },
163 { "v2df", TYPE_OTHER, 0, 0 },
164 { "u8qi", TYPE_OTHER, 0, 0 },
165 { "u16qi", TYPE_OTHER, 0, 0 },
166 { "u2hi", TYPE_OTHER, 0, 0 },
167 { "u4hi", TYPE_OTHER, 0, 0 },
168 { "u8hi", TYPE_OTHER, 0, 0 },
169 { "u2si", TYPE_OTHER, 0, 0 },
170 { "u4si", TYPE_OTHER, 0, 0 },
171 { "u1di", TYPE_OTHER, 0, 0 },
172 { "u2di", TYPE_OTHER, 0, 0 },
173 { "u2sf", TYPE_OTHER, 0, 0 },
174 { "u4sf", TYPE_OTHER, 0, 0 },
175 { "u16sf", TYPE_OTHER, 0, 0 },
176 { "u2df", TYPE_OTHER, 0, 0 },
177 { "__m64", TYPE_OTHER, 0, 0 },
178 { "__m128", TYPE_OTHER, 0, 0 }
179 #define NVTYPES2 (sizeof (vector_types) / sizeof (vector_types[0]))
180 };
181 struct types attrib_types[] = {
182 { "Talchar", TYPE_UINT, 127, 'C' },
183 { "Talschar", TYPE_INT, 127, 'C' },
184 { "Taluchar", TYPE_UINT, 255, 'C' },
185 { "Talshort", TYPE_INT, 32767, 'S' },
186 { "Talushort", TYPE_UINT, 65535, 'S' },
187 { "Talint", TYPE_INT, 2147483647, 'I' },
188 { "Taluint", TYPE_UINT, 4294967295U, 'I' },
189 { "Tallong", TYPE_INT, 9223372036854775807LL, 'L' },
190 { "Talulong", TYPE_UINT, 18446744073709551615ULL, 'L' },
191 { "Talllong", TYPE_INT, 9223372036854775807LL, 'Q' },
192 { "Talullong", TYPE_UINT, 18446744073709551615ULL, 'Q' },
193 { "Talbool", TYPE_UINT, 1, 'B' },
194 { "Talptr", TYPE_PTR, 0, 0 },
195 { "Talcptr", TYPE_PTR, 0, 0 },
196 { "Taliptr", TYPE_PTR, 0, 0 },
197 { "Talfloat", TYPE_FLOAT, 0, 0 },
198 { "Taldouble", TYPE_FLOAT, 0, 0 },
199 { "Talldouble", TYPE_FLOAT, 0, 0 },
200 { "TalE0", TYPE_UENUM, 0, ' ' },
201 { "TalE1", TYPE_UENUM, 1, ' ' },
202 { "TalE2", TYPE_SENUM, 3, ' ' },
203 { "TalE3", TYPE_SENUM, 127, ' ' },
204 { "TalE4", TYPE_UENUM, 255, ' ' },
205 { "TalE5", TYPE_SENUM, 32767, ' ' },
206 { "TalE6", TYPE_UENUM, 65535, ' ' },
207 { "TalE7", TYPE_SENUM, 2147483647, ' ' },
208 { "TalE8", TYPE_UENUM, 4294967295U, ' ' },
209 { "TalE9", TYPE_SENUM, 1099511627775LL, ' ' },
210 { "Tal1char", TYPE_UINT, 127, 'C' },
211 { "Tal1schar", TYPE_INT, 127, 'C' },
212 { "Tal1uchar", TYPE_UINT, 255, 'C' },
213 { "Tal1short", TYPE_INT, 32767, 'S' },
214 { "Tal1ushort", TYPE_UINT, 65535, 'S' },
215 { "Tal1int", TYPE_INT, 2147483647, 'I' },
216 { "Tal1uint", TYPE_UINT, 4294967295U, 'I' },
217 { "Tal1long", TYPE_INT, 9223372036854775807LL, 'L' },
218 { "Tal1ulong", TYPE_UINT, 18446744073709551615ULL, 'L' },
219 { "Tal1llong", TYPE_INT, 9223372036854775807LL, 'Q' },
220 { "Tal1ullong", TYPE_UINT, 18446744073709551615ULL, 'Q' },
221 { "Tal1bool", TYPE_UINT, 1, 'B' },
222 { "Tal1ptr", TYPE_PTR, 0, 0 },
223 { "Tal1cptr", TYPE_PTR, 0, 0 },
224 { "Tal1iptr", TYPE_PTR, 0, 0 },
225 { "Tal1float", TYPE_FLOAT, 0, 0 },
226 { "Tal1double", TYPE_FLOAT, 0, 0 },
227 { "Tal1ldouble", TYPE_FLOAT, 0, 0 },
228 { "Tal1E0", TYPE_UENUM, 0, ' ' },
229 { "Tal1E1", TYPE_UENUM, 1, ' ' },
230 { "Tal1E2", TYPE_SENUM, 3, ' ' },
231 { "Tal1E3", TYPE_SENUM, 127, ' ' },
232 { "Tal1E4", TYPE_UENUM, 255, ' ' },
233 { "Tal1E5", TYPE_SENUM, 32767, ' ' },
234 { "Tal1E6", TYPE_UENUM, 65535, ' ' },
235 { "Tal1E7", TYPE_SENUM, 2147483647, ' ' },
236 { "Tal1E8", TYPE_UENUM, 4294967295U, ' ' },
237 { "Tal1E9", TYPE_SENUM, 1099511627775LL, ' ' },
238 { "Tal2char", TYPE_UINT, 127, 'C' },
239 { "Tal2schar", TYPE_INT, 127, 'C' },
240 { "Tal2uchar", TYPE_UINT, 255, 'C' },
241 { "Tal2short", TYPE_INT, 32767, 'S' },
242 { "Tal2ushort", TYPE_UINT, 65535, 'S' },
243 { "Tal2int", TYPE_INT, 2147483647, 'I' },
244 { "Tal2uint", TYPE_UINT, 4294967295U, 'I' },
245 { "Tal2long", TYPE_INT, 9223372036854775807LL, 'L' },
246 { "Tal2ulong", TYPE_UINT, 18446744073709551615ULL, 'L' },
247 { "Tal2llong", TYPE_INT, 9223372036854775807LL, 'Q' },
248 { "Tal2ullong", TYPE_UINT, 18446744073709551615ULL, 'Q' },
249 { "Tal2bool", TYPE_UINT, 1, 'B' },
250 { "Tal2ptr", TYPE_PTR, 0, 0 },
251 { "Tal2cptr", TYPE_PTR, 0, 0 },
252 { "Tal2iptr", TYPE_PTR, 0, 0 },
253 { "Tal2float", TYPE_FLOAT, 0, 0 },
254 { "Tal2double", TYPE_FLOAT, 0, 0 },
255 { "Tal2ldouble", TYPE_FLOAT, 0, 0 },
256 { "Tal2E0", TYPE_UENUM, 0, ' ' },
257 { "Tal2E1", TYPE_UENUM, 1, ' ' },
258 { "Tal2E2", TYPE_SENUM, 3, ' ' },
259 { "Tal2E3", TYPE_SENUM, 127, ' ' },
260 { "Tal2E4", TYPE_UENUM, 255, ' ' },
261 { "Tal2E5", TYPE_SENUM, 32767, ' ' },
262 { "Tal2E6", TYPE_UENUM, 65535, ' ' },
263 { "Tal2E7", TYPE_SENUM, 2147483647, ' ' },
264 { "Tal2E8", TYPE_UENUM, 4294967295U, ' ' },
265 { "Tal2E9", TYPE_SENUM, 1099511627775LL, ' ' },
266 { "Tal4char", TYPE_UINT, 127, 'C' },
267 { "Tal4schar", TYPE_INT, 127, 'C' },
268 { "Tal4uchar", TYPE_UINT, 255, 'C' },
269 { "Tal4short", TYPE_INT, 32767, 'S' },
270 { "Tal4ushort", TYPE_UINT, 65535, 'S' },
271 { "Tal4int", TYPE_INT, 2147483647, 'I' },
272 { "Tal4uint", TYPE_UINT, 4294967295U, 'I' },
273 { "Tal4long", TYPE_INT, 9223372036854775807LL, 'L' },
274 { "Tal4ulong", TYPE_UINT, 18446744073709551615ULL, 'L' },
275 { "Tal4llong", TYPE_INT, 9223372036854775807LL, 'Q' },
276 { "Tal4ullong", TYPE_UINT, 18446744073709551615ULL, 'Q' },
277 { "Tal4bool", TYPE_UINT, 1, 'B' },
278 { "Tal4ptr", TYPE_PTR, 0, 0 },
279 { "Tal4cptr", TYPE_PTR, 0, 0 },
280 { "Tal4iptr", TYPE_PTR, 0, 0 },
281 { "Tal4float", TYPE_FLOAT, 0, 0 },
282 { "Tal4double", TYPE_FLOAT, 0, 0 },
283 { "Tal4ldouble", TYPE_FLOAT, 0, 0 },
284 { "Tal4E0", TYPE_UENUM, 0, ' ' },
285 { "Tal4E1", TYPE_UENUM, 1, ' ' },
286 { "Tal4E2", TYPE_SENUM, 3, ' ' },
287 { "Tal4E3", TYPE_SENUM, 127, ' ' },
288 { "Tal4E4", TYPE_UENUM, 255, ' ' },
289 { "Tal4E5", TYPE_SENUM, 32767, ' ' },
290 { "Tal4E6", TYPE_UENUM, 65535, ' ' },
291 { "Tal4E7", TYPE_SENUM, 2147483647, ' ' },
292 { "Tal4E8", TYPE_UENUM, 4294967295U, ' ' },
293 { "Tal4E9", TYPE_SENUM, 1099511627775LL, ' ' },
294 { "Tal8char", TYPE_UINT, 127, 'C' },
295 { "Tal8schar", TYPE_INT, 127, 'C' },
296 { "Tal8uchar", TYPE_UINT, 255, 'C' },
297 { "Tal8short", TYPE_INT, 32767, 'S' },
298 { "Tal8ushort", TYPE_UINT, 65535, 'S' },
299 { "Tal8int", TYPE_INT, 2147483647, 'I' },
300 { "Tal8uint", TYPE_UINT, 4294967295U, 'I' },
301 { "Tal8long", TYPE_INT, 9223372036854775807LL, 'L' },
302 { "Tal8ulong", TYPE_UINT, 18446744073709551615ULL, 'L' },
303 { "Tal8llong", TYPE_INT, 9223372036854775807LL, 'Q' },
304 { "Tal8ullong", TYPE_UINT, 18446744073709551615ULL, 'Q' },
305 { "Tal8bool", TYPE_UINT, 1, 'B' },
306 { "Tal8ptr", TYPE_PTR, 0, 0 },
307 { "Tal8cptr", TYPE_PTR, 0, 0 },
308 { "Tal8iptr", TYPE_PTR, 0, 0 },
309 { "Tal8float", TYPE_FLOAT, 0, 0 },
310 { "Tal8double", TYPE_FLOAT, 0, 0 },
311 { "Tal8ldouble", TYPE_FLOAT, 0, 0 },
312 { "Tal8E0", TYPE_UENUM, 0, ' ' },
313 { "Tal8E1", TYPE_UENUM, 1, ' ' },
314 { "Tal8E2", TYPE_SENUM, 3, ' ' },
315 { "Tal8E3", TYPE_SENUM, 127, ' ' },
316 { "Tal8E4", TYPE_UENUM, 255, ' ' },
317 { "Tal8E5", TYPE_SENUM, 32767, ' ' },
318 { "Tal8E6", TYPE_UENUM, 65535, ' ' },
319 { "Tal8E7", TYPE_SENUM, 2147483647, ' ' },
320 { "Tal8E8", TYPE_UENUM, 4294967295U, ' ' },
321 { "Tal8E9", TYPE_SENUM, 1099511627775LL, ' ' },
322 { "Tal16char", TYPE_UINT, 127, 'C' },
323 { "Tal16schar", TYPE_INT, 127, 'C' },
324 { "Tal16uchar", TYPE_UINT, 255, 'C' },
325 { "Tal16short", TYPE_INT, 32767, 'S' },
326 { "Tal16ushort", TYPE_UINT, 65535, 'S' },
327 { "Tal16int", TYPE_INT, 2147483647, 'I' },
328 { "Tal16uint", TYPE_UINT, 4294967295U, 'I' },
329 { "Tal16long", TYPE_INT, 9223372036854775807LL, 'L' },
330 { "Tal16ulong", TYPE_UINT, 18446744073709551615ULL, 'L' },
331 { "Tal16llong", TYPE_INT, 9223372036854775807LL, 'Q' },
332 { "Tal16ullong", TYPE_UINT, 18446744073709551615ULL, 'Q' },
333 { "Tal16bool", TYPE_UINT, 1, 'B' },
334 { "Tal16ptr", TYPE_PTR, 0, 0 },
335 { "Tal16cptr", TYPE_PTR, 0, 0 },
336 { "Tal16iptr", TYPE_PTR, 0, 0 },
337 { "Tal16float", TYPE_FLOAT, 0, 0 },
338 { "Tal16double", TYPE_FLOAT, 0, 0 },
339 { "Tal16ldouble", TYPE_FLOAT, 0, 0 },
340 { "Tal16E0", TYPE_UENUM, 0, ' ' },
341 { "Tal16E1", TYPE_UENUM, 1, ' ' },
342 { "Tal16E2", TYPE_SENUM, 3, ' ' },
343 { "Tal16E3", TYPE_SENUM, 127, ' ' },
344 { "Tal16E4", TYPE_UENUM, 255, ' ' },
345 { "Tal16E5", TYPE_SENUM, 32767, ' ' },
346 { "Tal16E6", TYPE_UENUM, 65535, ' ' },
347 { "Tal16E7", TYPE_SENUM, 2147483647, ' ' },
348 { "Tal16E8", TYPE_UENUM, 4294967295U, ' ' },
349 { "Tal16E9", TYPE_SENUM, 1099511627775LL, ' ' }
350 #define NATYPES2 (sizeof (attrib_types) / sizeof (attrib_types[0]))
351 };
352
353 struct types bitfld_types[NTYPES2];
354 int n_bitfld_types;
355 struct types aligned_bitfld_types[NATYPES2];
356 int n_aligned_bitfld_types;
357
358 const char *attributes[] = {
359 "atal",
360 "atpa",
361 "atal1",
362 "atal2",
363 "atal4",
364 "atal8",
365 "atal16",
366 #define NATTRIBS1 7
367 "atalpa",
368 "atpaal",
369 "atal1pa",
370 "atal2pa",
371 "atal4pa",
372 "atal8pa",
373 "atal16pa",
374 "atpaal1",
375 "atpaal2",
376 "atpaal4",
377 "atpaal8",
378 "atpaal16"
379 #define NATTRIBS2 (sizeof (attributes) / sizeof (attributes[0]))
380 };
381
382 enum ETYPE
383 {
384 ETYPE_TYPE,
385 ETYPE_ARRAY,
386 ETYPE_BITFLD,
387 ETYPE_STRUCT,
388 ETYPE_UNION,
389 ETYPE_STRUCT_ARRAY,
390 ETYPE_UNION_ARRAY
391 };
392
393 struct entry
394 {
395 #ifdef __GNUC__
396 enum ETYPE etype : 8;
397 #else
398 unsigned char etype;
399 #endif
400 unsigned short len;
401 unsigned char arr_len;
402 struct types *type;
403 const char *attrib;
404 /* Used to chain together entries in the hash table. */
405 struct entry *next;
406 };
407 struct types attrib_array_types[] = {
408 { "Talx1char", TYPE_UINT, 127, 'C' },
409 { "Talx1schar", TYPE_INT, 127, 'C' },
410 { "Talx1uchar", TYPE_UINT, 255, 'C' },
411 { "Talx1short", TYPE_INT, 32767, 'S' },
412 { "Talx1ushort", TYPE_UINT, 65535, 'S' },
413 { "Talx1int", TYPE_INT, 2147483647, 'I' },
414 { "Talx1uint", TYPE_UINT, 4294967295U, 'I' },
415 { "Talx1long", TYPE_INT, 9223372036854775807LL, 'L' },
416 { "Talx1ulong", TYPE_UINT, 18446744073709551615ULL, 'L' },
417 { "Talx1llong", TYPE_INT, 9223372036854775807LL, 'Q' },
418 { "Talx1ullong", TYPE_UINT, 18446744073709551615ULL, 'Q' },
419 { "Talx1bool", TYPE_UINT, 1, 'B' },
420 { "Talx1ptr", TYPE_PTR, 0, 0 },
421 { "Talx1cptr", TYPE_PTR, 0, 0 },
422 { "Talx1iptr", TYPE_PTR, 0, 0 },
423 { "Talx1float", TYPE_FLOAT, 0, 0 },
424 { "Talx1double", TYPE_FLOAT, 0, 0 },
425 { "Talx1ldouble", TYPE_FLOAT, 0, 0 },
426 { "Talx1E0", TYPE_UENUM, 0, ' ' },
427 { "Talx1E1", TYPE_UENUM, 1, ' ' },
428 { "Talx1E2", TYPE_SENUM, 3, ' ' },
429 { "Talx1E3", TYPE_SENUM, 127, ' ' },
430 { "Talx1E4", TYPE_UENUM, 255, ' ' },
431 { "Talx1E5", TYPE_SENUM, 32767, ' ' },
432 { "Talx1E6", TYPE_UENUM, 65535, ' ' },
433 { "Talx1E7", TYPE_SENUM, 2147483647, ' ' },
434 { "Talx1E8", TYPE_UENUM, 4294967295U, ' ' },
435 { "Talx1E9", TYPE_SENUM, 1099511627775LL, ' ' },
436 { "Talx2short", TYPE_INT, 32767, 'S' },
437 { "Talx2ushort", TYPE_UINT, 65535, 'S' },
438 { "Talx2int", TYPE_INT, 2147483647, 'I' },
439 { "Talx2uint", TYPE_UINT, 4294967295U, 'I' },
440 { "Talx2long", TYPE_INT, 9223372036854775807LL, 'L' },
441 { "Talx2ulong", TYPE_UINT, 18446744073709551615ULL, 'L' },
442 { "Talx2llong", TYPE_INT, 9223372036854775807LL, 'Q' },
443 { "Talx2ullong", TYPE_UINT, 18446744073709551615ULL, 'Q' },
444 { "Talx2ptr", TYPE_PTR, 0, 0 },
445 { "Talx2cptr", TYPE_PTR, 0, 0 },
446 { "Talx2iptr", TYPE_PTR, 0, 0 },
447 { "Talx2float", TYPE_FLOAT, 0, 0 },
448 { "Talx2double", TYPE_FLOAT, 0, 0 },
449 { "Talx2ldouble", TYPE_FLOAT, 0, 0 },
450 { "Talx2E0", TYPE_UENUM, 0, ' ' },
451 { "Talx2E1", TYPE_UENUM, 1, ' ' },
452 { "Talx2E2", TYPE_SENUM, 3, ' ' },
453 { "Talx2E3", TYPE_SENUM, 127, ' ' },
454 { "Talx2E4", TYPE_UENUM, 255, ' ' },
455 { "Talx2E5", TYPE_SENUM, 32767, ' ' },
456 { "Talx2E6", TYPE_UENUM, 65535, ' ' },
457 { "Talx2E7", TYPE_SENUM, 2147483647, ' ' },
458 { "Talx2E8", TYPE_UENUM, 4294967295U, ' ' },
459 { "Talx2E9", TYPE_SENUM, 1099511627775LL, ' ' },
460 { "Talx4int", TYPE_INT, 2147483647, 'I' },
461 { "Talx4uint", TYPE_UINT, 4294967295U, 'I' },
462 { "Talx4long", TYPE_INT, 9223372036854775807LL, 'L' },
463 { "Talx4ulong", TYPE_UINT, 18446744073709551615ULL, 'L' },
464 { "Talx4llong", TYPE_INT, 9223372036854775807LL, 'Q' },
465 { "Talx4ullong", TYPE_UINT, 18446744073709551615ULL, 'Q' },
466 { "Talx4ptr", TYPE_PTR, 0, 0 },
467 { "Talx4cptr", TYPE_PTR, 0, 0 },
468 { "Talx4iptr", TYPE_PTR, 0, 0 },
469 { "Talx4float", TYPE_FLOAT, 0, 0 },
470 { "Talx4double", TYPE_FLOAT, 0, 0 },
471 { "Talx4ldouble", TYPE_FLOAT, 0, 0 },
472 { "Talx4E0", TYPE_UENUM, 0, ' ' },
473 { "Talx4E1", TYPE_UENUM, 1, ' ' },
474 { "Talx4E2", TYPE_SENUM, 3, ' ' },
475 { "Talx4E3", TYPE_SENUM, 127, ' ' },
476 { "Talx4E4", TYPE_UENUM, 255, ' ' },
477 { "Talx4E5", TYPE_SENUM, 32767, ' ' },
478 { "Talx4E6", TYPE_UENUM, 65535, ' ' },
479 { "Talx4E7", TYPE_SENUM, 2147483647, ' ' },
480 { "Talx4E8", TYPE_UENUM, 4294967295U, ' ' },
481 { "Talx4E9", TYPE_SENUM, 1099511627775LL, ' ' },
482 { "Taly8long", TYPE_INT, 9223372036854775807LL, 'L' },
483 { "Taly8ulong", TYPE_UINT, 18446744073709551615ULL, 'L' },
484 { "Talx8llong", TYPE_INT, 9223372036854775807LL, 'Q' },
485 { "Talx8ullong", TYPE_UINT, 18446744073709551615ULL, 'Q' },
486 { "Taly8ptr", TYPE_PTR, 0, 0 },
487 { "Taly8cptr", TYPE_PTR, 0, 0 },
488 { "Taly8iptr", TYPE_PTR, 0, 0 },
489 { "Talx8double", TYPE_FLOAT, 0, 0 },
490 { "Talx8ldouble", TYPE_FLOAT, 0, 0 }
491 #define NAATYPES2 (sizeof (attrib_array_types) / sizeof (attrib_array_types[0]))
492 };
493
494 /* A prime number giving the number of slots in the hash table. */
495 #define HASH_SIZE 32749
496 static struct entry *hash_table[HASH_SIZE];
497
498 /* The index of the current type being output. */
499 static int idx;
500
501 /* The maximum index of the type(s) to output. */
502 static int limidx;
503
504 /* Set to non-zero to output a single type in response to the -i option
505 (which sets LIMIDX to the index of the type to output. */
506 static int output_one;
507 static int short_enums;
508 static const char *destdir;
509 static const char *srcdir;
510 static const char *srcdir_safe;
511 static int cxx14_vs_cxx17;
512 static int do_cxx14_vs_cxx17;
513 FILE *outfile;
514
515 void
516 switchfiles (int fields)
517 {
518 static int filecnt;
519 static char *destbuf, *destptr;
520 int i;
521 int cxx14_first = 0;
522 const char *cxxnn = "";
523
524 ++filecnt;
525 if (outfile)
526 fclose (outfile);
527 if (output_one)
528 {
529 outfile = stdout;
530 return;
531 }
532 if (destbuf == NULL)
533 {
534 size_t len = strlen (destdir);
535 destbuf = malloc (len + 20);
536 if (!destbuf)
537 abort ();
538 memcpy (destbuf, destdir, len);
539 if (!len || destbuf[len - 1] != '/')
540 destbuf[len++] = '/';
541 destptr = destbuf + len;
542 }
543 sprintf (destptr, "t%03d_main.C", filecnt);
544 outfile = fopen (destbuf, "w");
545 if (outfile == NULL)
546 {
547 fail:
548 fputs ("failed to create test files\n", stderr);
549 exit (1);
550 }
551
552 if (cxx14_vs_cxx17)
553 {
554 cxx14_first = generate_random () & 1;
555 cxxnn = (cxx14_first
556 ? "-std=c++14 -DCXX14_VS_CXX17 "
557 : "-std=c++17 -DCXX14_VS_CXX17 ");
558 }
559 for (i = 0; i < NDG_OPTIONS; i++)
560 fprintf (outfile, dg_options[i], "", "", srcdir_safe);
561 fprintf (outfile, "\n\
562 #include \"struct-layout-1.h\"\n\
563 \n\
564 #define TX(n, type, attrs, fields, ops) extern void test##n (void);\n\
565 #include \"t%03d_test.h\"\n\
566 #undef TX\n\
567 \n\
568 int main (void)\n\
569 {\n\
570 #define TX(n, type, attrs, fields, ops) test##n ();\n\
571 #include \"t%03d_test.h\"\n\
572 #undef TX\n\
573 if (fails)\n\
574 {\n\
575 fflush (stdout);\n\
576 abort ();\n\
577 }\n\
578 exit (0);\n\
579 }\n", filecnt, filecnt);
580 fclose (outfile);
581 sprintf (destptr, "t%03d_x.C", filecnt);
582 outfile = fopen (destbuf, "w");
583 if (outfile == NULL)
584 goto fail;
585 for (i = 0; i < NDG_OPTIONS; i++)
586 fprintf (outfile, dg_options[i], cxxnn, "-w ", srcdir_safe);
587 fprintf (outfile, "\n\
588 #include \"struct-layout-1_x1.h\"\n\
589 #include \"t%03d_test.h\"\n\
590 #include \"struct-layout-1_x2.h\"\n\
591 #include \"t%03d_test.h\"\n", filecnt, filecnt);
592 fclose (outfile);
593 sprintf (destptr, "t%03d_y.C", filecnt);
594 outfile = fopen (destbuf, "w");
595 if (outfile == NULL)
596 goto fail;
597 if (cxx14_vs_cxx17)
598 cxxnn = (cxx14_first
599 ? "-std=c++17 -DCXX14_VS_CXX17 "
600 : "-std=c++14 -DCXX14_VS_CXX17 ");
601 for (i = 0; i < NDG_OPTIONS; i++)
602 fprintf (outfile, dg_options[i], cxxnn, "-w ", srcdir_safe);
603 fprintf (outfile, "\n\
604 #include \"struct-layout-1_y1.h\"\n\
605 #include \"t%03d_test.h\"\n\
606 #include \"struct-layout-1_y2.h\"\n\
607 #include \"t%03d_test.h\"\n", filecnt, filecnt);
608 fclose (outfile);
609 sprintf (destptr, "t%03d_test.h", filecnt);
610 outfile = fopen (destbuf, "w");
611 if (outfile == NULL)
612 goto fail;
613 if (fields <= 2)
614 limidx = idx + 300;
615 else if (fields <= 4)
616 limidx = idx + 200;
617 else if (fields <= 6)
618 limidx = idx + 100;
619 else
620 limidx = idx + 50;
621 }
622
623 unsigned long long int
624 getrandll (void)
625 {
626 unsigned long long int ret;
627 ret = generate_random () & 0xffffff;
628 ret |= (generate_random () & 0xffffffLL) << 24;
629 ret |= ((unsigned long long int) generate_random ()) << 48;
630 return ret;
631 }
632
633 /* Generate a subfield. The object pointed to by FLEX is set to a non-zero
634 value when the generated field is a flexible array member. When set, it
635 prevents subsequent fields from being generated (a flexible array member
636 must be the last member of the struct it's defined in). ARRAY is non-
637 zero when the enclosing structure is part of an array. In that case,
638 avoid generating a flexible array member as a subfield (such a member
639 would be invalid). */
640
641 int
642 subfield (struct entry *e, char *letter, int *flex, int array)
643 {
644 int i, type;
645 char buf[20];
646 const char *p;
647 switch (e[0].etype)
648 {
649 case ETYPE_STRUCT:
650 case ETYPE_UNION:
651 case ETYPE_STRUCT_ARRAY:
652 case ETYPE_UNION_ARRAY:
653 type = e[0].attrib ? 1 + (generate_random () & 3) : 0;
654 if (e[0].etype == ETYPE_STRUCT || e[0].etype == ETYPE_STRUCT_ARRAY)
655 p = "struct";
656 else
657 p = "union";
658 if (e[0].etype == ETYPE_STRUCT_ARRAY || e[0].etype == ETYPE_UNION_ARRAY)
659 {
660 if (e[0].arr_len == 255)
661 {
662 *flex = 1;
663 snprintf (buf, 20, "%c[]", *letter);
664 }
665 else
666 snprintf (buf, 20, "%c[%d]", *letter, e[0].arr_len);
667 /* If this is an array type, do not put aligned attributes on
668 elements. Aligning elements to a value greater than their
669 size will result in a compiler error. */
670 if (type == 1
671 && ((strncmp (e[0].attrib, "atal", 4) == 0)
672 || strncmp (e[0].attrib, "atpaal", 6) == 0))
673 type = 2;
674 }
675 else
676 {
677 buf[0] = *letter;
678 buf[1] = '\0';
679 }
680 ++*letter;
681 switch (type)
682 {
683 case 0:
684 case 3:
685 case 4:
686 fprintf (outfile, "%s{", p);
687 break;
688 case 1:
689 fprintf (outfile, "%s %s{", e[0].attrib, p);
690 break;
691 case 2:
692 fprintf (outfile, "%s %s{", p, e[0].attrib);
693 break;
694 }
695
696 for (i = 1; !*flex && i <= e[0].len; )
697 {
698 /* Avoid generating flexible array members if the enclosing
699 type is an array. */
700 int array
701 = (e[0].etype == ETYPE_STRUCT_ARRAY
702 || e[0].etype == ETYPE_UNION_ARRAY);
703 i += subfield (e + i, letter, flex, array);
704 }
705
706 switch (type)
707 {
708 case 0:
709 case 1:
710 case 2:
711 fprintf (outfile, "}%s;", buf);
712 break;
713 case 3:
714 fprintf (outfile, "}%s %s;", e[0].attrib, buf);
715 break;
716 case 4:
717 fprintf (outfile, "}%s %s;", buf, e[0].attrib);
718 break;
719 }
720 return 1 + e[0].len;
721 case ETYPE_TYPE:
722 case ETYPE_ARRAY:
723 if (e[0].etype == ETYPE_ARRAY)
724 {
725 if (!array && e[0].arr_len == 255)
726 {
727 *flex = 1;
728 snprintf (buf, 20, "%c[]", *letter);
729 }
730 else
731 snprintf (buf, 20, "%c[%d]", *letter, e[0].arr_len);
732 }
733 else
734 {
735 buf[0] = *letter;
736 buf[1] = '\0';
737 }
738 ++*letter;
739 if (e[0].attrib)
740 {
741 /* If this is an array type, do not put aligned attributes on
742 elements. Aligning elements to a value greater than their
743 size will result in a compiler error. */
744 if (e[0].etype == ETYPE_ARRAY
745 && ((strncmp (e[0].attrib, "atal", 4) == 0)
746 || strncmp (e[0].attrib, "atpaal", 6) == 0))
747 type = 2;
748 else
749 type = generate_random () % 3;
750 switch (type)
751 {
752 case 0:
753 fprintf (outfile, "%s %s %s;", e[0].attrib, e[0].type->name,
754 buf);
755 break;
756 case 1:
757 fprintf (outfile, "%s %s %s;", e[0].type->name, e[0].attrib,
758 buf);
759 break;
760 case 2:
761 fprintf (outfile, "%s %s %s;", e[0].type->name, buf,
762 e[0].attrib);
763 break;
764 }
765 }
766 else
767 fprintf (outfile, "%s %s;", e[0].type->name, buf);
768 return 1;
769 case ETYPE_BITFLD:
770 if (e[0].len == 0)
771 {
772 if (e[0].attrib)
773 switch (generate_random () % 3)
774 {
775 case 0:
776 fprintf (outfile, "%s %s:0;", e[0].attrib, e[0].type->name);
777 break;
778 case 1:
779 fprintf (outfile, "%s %s:0;", e[0].type->name, e[0].attrib);
780 break;
781 case 2:
782 fprintf (outfile, "%s:0 %s;", e[0].type->name, e[0].attrib);
783 break;
784 }
785 else
786 fprintf (outfile, "%s:0;", e[0].type->name);
787 ++*letter;
788 return 1;
789 }
790 snprintf (buf, 20, "%d", e[0].len);
791 if (e[0].attrib)
792 switch (generate_random () % 3)
793 {
794 case 0:
795 fprintf (outfile, "%s %s %c:%s;", e[0].attrib, e[0].type->name,
796 *letter, buf);
797 break;
798 case 1:
799 fprintf (outfile, "%s %s %c:%s;", e[0].type->name, e[0].attrib,
800 *letter, buf);
801 break;
802 case 2:
803 fprintf (outfile, "%s %c:%s %s;", e[0].type->name, *letter,
804 buf, e[0].attrib);
805 break;
806 }
807 else
808 fprintf (outfile, "%s %c:%s;", e[0].type->name, *letter, buf);
809 ++*letter;
810 return 1;
811 default:
812 abort ();
813 }
814 }
815
816 char namebuf[1024];
817
818 void
819 output_FNB (char mode, struct entry *e)
820 {
821 unsigned long long int l1, l2, m;
822 int signs = 0;
823 const char *p, *q;
824
825 if (e->type->type == TYPE_OTHER)
826 {
827 if (mode == 'B')
828 abort ();
829 fprintf (outfile, "N(%d,%s)", idx, namebuf);
830 return;
831 }
832 fprintf (outfile, "%c(%d,%s,", mode, idx, namebuf);
833 l1 = getrandll ();
834 l2 = getrandll ();
835 switch (e->type->type)
836 {
837 case TYPE_INT:
838 signs = generate_random () & 3;
839 m = e->type->maxval;
840 if (mode == 'B')
841 m &= e->len > 1 ? (1ULL << (e->len - 1)) - 1 : 1;
842 l1 &= m;
843 l2 &= m;
844 fprintf (outfile, "%s%" COMPAT_PRLL "u%s,%s%" COMPAT_PRLL "u%s",
845 (signs & 1) ? "-" : "", l1, l1 > 2147483647 ? "LL" : "",
846 (signs & 2) ? "-" : "", l2, l2 > 2147483647 ? "LL" : "");
847 break;
848 case TYPE_UINT:
849 m = e->type->maxval;
850 if (mode == 'B')
851 m &= (1ULL << e->len) - 1;
852 l1 &= m;
853 l2 &= m;
854 fprintf (outfile,"%" COMPAT_PRLL "uU%s,%" COMPAT_PRLL "uU%s",
855 l1, l1 > 4294967295U ? "LL" : "",
856 l2, l2 > 4294967295U ? "LL" : "");
857 break;
858 case TYPE_FLOAT:
859 l1 &= 0xffffff;
860 l2 &= 0xffffff;
861 signs = generate_random () & 3;
862 fprintf (outfile, "%s%f,%s%f", (signs & 1) ? "-" : "",
863 ((double) l1) / 64, (signs & 2) ? "-" : "", ((double) l2) / 64);
864 break;
865 case TYPE_UENUM:
866 if (e->type->maxval == 0)
867 fputs ("e0_0,e0_0", outfile);
868 else if (e->type->maxval == 1)
869 fprintf (outfile, "e1_%" COMPAT_PRLL "d,e1_%" COMPAT_PRLL "d",
870 l1 & 1, l2 & 1);
871 else
872 {
873 p = strchr (e->type->name, '\0');
874 while (--p >= e->type->name && *p >= '0' && *p <= '9');
875 p++;
876 l1 %= 7;
877 l2 %= 7;
878 if (l1 > 3)
879 l1 += e->type->maxval - 6;
880 if (l2 > 3)
881 l2 += e->type->maxval - 6;
882 fprintf (outfile, "e%s_%" COMPAT_PRLL "d,e%s_%" COMPAT_PRLL "d",
883 p, l1, p, l2);
884 }
885 break;
886 case TYPE_SENUM:
887 p = strchr (e->type->name, '\0');
888 while (--p >= e->type->name && *p >= '0' && *p <= '9');
889 p++;
890 l1 %= 7;
891 l2 %= 7;
892 fprintf (outfile, "e%s_%s%" COMPAT_PRLL "d,e%s_%s%" COMPAT_PRLL "d",
893 p, l1 < 3 ? "m" : "",
894 l1 == 3 ? 0LL : e->type->maxval - (l1 & 3),
895 p, l2 < 3 ? "m" : "",
896 l2 == 3 ? 0LL : e->type->maxval - (l2 & 3));
897 break;
898 case TYPE_PTR:
899 l1 %= 256;
900 l2 %= 256;
901 fprintf (outfile,
902 "(%s)&intarray[%" COMPAT_PRLL "d], (%s)&intarray[%" COMPAT_PRLL "d]",
903 e->type->name, l1, e->type->name, l2);
904 break;
905 case TYPE_FNPTR:
906 l1 %= 10;
907 l2 %= 10;
908 fprintf (outfile,
909 "fn%" COMPAT_PRLL "d,fn%" COMPAT_PRLL "d", l1, l2);
910 break;
911 default:
912 abort ();
913 }
914 fputs (")", outfile);
915 }
916
917 int
918 subvalues (struct entry *e, char *p, char *letter)
919 {
920 int i, j;
921 char *q;
922 if (p >= namebuf + sizeof (namebuf) - 32)
923 abort ();
924 p[0] = *letter;
925 p[1] = '\0';
926 q = p + 1;
927 switch (e[0].etype)
928 {
929 case ETYPE_STRUCT_ARRAY:
930 case ETYPE_UNION_ARRAY:
931 if (e[0].arr_len == 0 || e[0].arr_len == 255)
932 {
933 *letter += 1 + e[0].len;
934 return 1 + e[0].len;
935 }
936 i = generate_random () % e[0].arr_len;
937 snprintf (p, sizeof (namebuf) - (p - namebuf) - 1,
938 "%c[%d]", *letter, i);
939 q = strchr (p, '\0');
940 /* FALLTHROUGH */
941 case ETYPE_STRUCT:
942 case ETYPE_UNION:
943 *q++ = '.';
944 ++*letter;
945 for (i = 1; i <= e[0].len; )
946 {
947 i += subvalues (e + i, q, letter);
948 if (e[0].etype == ETYPE_UNION || e[0].etype == ETYPE_UNION_ARRAY)
949 {
950 *letter += e[0].len - i + 1;
951 break;
952 }
953 }
954 return 1 + e[0].len;
955 case ETYPE_TYPE:
956 ++*letter;
957 output_FNB ('F', e);
958 return 1;
959 case ETYPE_ARRAY:
960 if (e[0].arr_len == 0 || e[0].arr_len == 255)
961 {
962 ++*letter;
963 return 1;
964 }
965 i = generate_random () % e[0].arr_len;
966 snprintf (p, sizeof (namebuf) - (p - namebuf),
967 "%c[%d]", *letter, i);
968 output_FNB ('F', e);
969 if ((generate_random () & 7) == 0)
970 {
971 j = generate_random () % e[0].arr_len;
972 if (i != j)
973 {
974 snprintf (p, sizeof (namebuf) - (p - namebuf),
975 "%c[%d]", *letter, j);
976 output_FNB ('F', e);
977 }
978 }
979 ++*letter;
980 return 1;
981 case ETYPE_BITFLD:
982 ++*letter;
983 if (e[0].len != 0)
984 output_FNB ('B', e);
985 return 1;
986 default:
987 return 0;
988 }
989 }
990
991 /* DERIVED FROM:
992 --------------------------------------------------------------------
993 lookup2.c, by Bob Jenkins, December 1996, Public Domain.
994 hash(), hash2(), hash3, and mix() are externally useful functions.
995 Routines to test the hash are included if SELF_TEST is defined.
996 You can use this free for any purpose. It has no warranty.
997 --------------------------------------------------------------------
998 */
999
1000 /*
1001 --------------------------------------------------------------------
1002 mix -- mix 3 32-bit values reversibly.
1003 For every delta with one or two bit set, and the deltas of all three
1004 high bits or all three low bits, whether the original value of a,b,c
1005 is almost all zero or is uniformly distributed,
1006 * If mix() is run forward or backward, at least 32 bits in a,b,c
1007 have at least 1/4 probability of changing.
1008 * If mix() is run forward, every bit of c will change between 1/3 and
1009 2/3 of the time. (Well, 22/100 and 78/100 for some 2-bit deltas.)
1010 mix() was built out of 36 single-cycle latency instructions in a
1011 structure that could supported 2x parallelism, like so:
1012 a -= b;
1013 a -= c; x = (c>>13);
1014 b -= c; a ^= x;
1015 b -= a; x = (a<<8);
1016 c -= a; b ^= x;
1017 c -= b; x = (b>>13);
1018 ...
1019 Unfortunately, superscalar Pentiums and Sparcs can't take advantage
1020 of that parallelism. They've also turned some of those single-cycle
1021 latency instructions into multi-cycle latency instructions. Still,
1022 this is the fastest good hash I could find. There were about 2^^68
1023 to choose from. I only looked at a billion or so.
1024 --------------------------------------------------------------------
1025 */
1026 /* same, but slower, works on systems that might have 8 byte hashval_t's */
1027 #define mix(a,b,c) \
1028 { \
1029 a -= b; a -= c; a ^= (c>>13); \
1030 b -= c; b -= a; b ^= (a<< 8); \
1031 c -= a; c -= b; c ^= ((b&0xffffffff)>>13); \
1032 a -= b; a -= c; a ^= ((c&0xffffffff)>>12); \
1033 b -= c; b -= a; b = (b ^ (a<<16)) & 0xffffffff; \
1034 c -= a; c -= b; c = (c ^ (b>> 5)) & 0xffffffff; \
1035 a -= b; a -= c; a = (a ^ (c>> 3)) & 0xffffffff; \
1036 b -= c; b -= a; b = (b ^ (a<<10)) & 0xffffffff; \
1037 c -= a; c -= b; c = (c ^ (b>>15)) & 0xffffffff; \
1038 }
1039
1040 /*
1041 --------------------------------------------------------------------
1042 hash() -- hash a variable-length key into a 32-bit value
1043 k : the key (the unaligned variable-length array of bytes)
1044 len : the length of the key, counting by bytes
1045 level : can be any 4-byte value
1046 Returns a 32-bit value. Every bit of the key affects every bit of
1047 the return value. Every 1-bit and 2-bit delta achieves avalanche.
1048 About 36+6len instructions.
1049
1050 The best hash table sizes are powers of 2. There is no need to do
1051 mod a prime (mod is sooo slow!). If you need less than 32 bits,
1052 use a bitmask. For example, if you need only 10 bits, do
1053 h = (h & hashmask(10));
1054 In which case, the hash table should have hashsize(10) elements.
1055
1056 If you are hashing n strings (ub1 **)k, do it like this:
1057 for (i=0, h=0; i<n; ++i) h = hash( k[i], len[i], h);
1058
1059 By Bob Jenkins, 1996. bob_jenkins@burtleburtle.net. You may use this
1060 code any way you wish, private, educational, or commercial. It's free.
1061
1062 See http://burtleburtle.net/bob/hash/evahash.html
1063 Use for hash table lookup, or anything where one collision in 2^32 is
1064 acceptable. Do NOT use for cryptographic purposes.
1065 --------------------------------------------------------------------
1066 */
1067
1068 static hashval_t
1069 iterative_hash (const void *k_in /* the key */,
1070 size_t length /* the length of the key */,
1071 hashval_t initval /* the previous hash, or
1072 an arbitrary value */)
1073 {
1074 const unsigned char *k = (const unsigned char *)k_in;
1075 hashval_t a,b,c,len;
1076
1077 /* Set up the internal state */
1078 len = length;
1079 a = b = 0x9e3779b9; /* the golden ratio; an arbitrary value */
1080 c = initval; /* the previous hash value */
1081
1082 /*---------------------------------------- handle most of the key */
1083 while (len >= 12)
1084 {
1085 a += (k[0] +((hashval_t)k[1]<<8) +((hashval_t)k[2]<<16) +((hashval_t)k[3]<<24));
1086 b += (k[4] +((hashval_t)k[5]<<8) +((hashval_t)k[6]<<16) +((hashval_t)k[7]<<24));
1087 c += (k[8] +((hashval_t)k[9]<<8) +((hashval_t)k[10]<<16)+((hashval_t)k[11]<<24));
1088 mix(a,b,c);
1089 k += 12; len -= 12;
1090 }
1091
1092 /*------------------------------------- handle the last 11 bytes */
1093 c += length;
1094 switch(len) /* all the case statements fall through */
1095 {
1096 case 11: c+=((hashval_t)k[10]<<24);
1097 case 10: c+=((hashval_t)k[9]<<16);
1098 case 9 : c+=((hashval_t)k[8]<<8);
1099 /* the first byte of c is reserved for the length */
1100 case 8 : b+=((hashval_t)k[7]<<24);
1101 case 7 : b+=((hashval_t)k[6]<<16);
1102 case 6 : b+=((hashval_t)k[5]<<8);
1103 case 5 : b+=k[4];
1104 case 4 : a+=((hashval_t)k[3]<<24);
1105 case 3 : a+=((hashval_t)k[2]<<16);
1106 case 2 : a+=((hashval_t)k[1]<<8);
1107 case 1 : a+=k[0];
1108 /* case 0: nothing left to add */
1109 }
1110 mix(a,b,c);
1111 /*-------------------------------------------- report the result */
1112 return c;
1113 }
1114
1115 hashval_t
1116 e_hash (const void *a)
1117 {
1118 const struct entry *e = a;
1119 hashval_t ret = 0;
1120 int i;
1121
1122 if (e[0].etype != ETYPE_STRUCT && e[0].etype != ETYPE_UNION)
1123 abort ();
1124 for (i = 0; i <= e[0].len; ++i)
1125 {
1126 int attriblen;
1127 ret = iterative_hash (&e[i], offsetof (struct entry, attrib), ret);
1128 attriblen = e[i].attrib ? strlen (e[i].attrib) : -1;
1129 ret = iterative_hash (&attriblen, sizeof (int), ret);
1130 if (e[i].attrib)
1131 ret = iterative_hash (e[i].attrib, attriblen, ret);
1132 }
1133 return ret;
1134 }
1135
1136 int
1137 e_eq (const void *a, const void *b)
1138 {
1139 const struct entry *ea = a, *eb = b;
1140 int i;
1141 if (ea[0].etype != ETYPE_STRUCT && ea[0].etype != ETYPE_UNION)
1142 abort ();
1143 if (ea[0].len != eb[0].len)
1144 return 0;
1145 for (i = 0; i <= ea[0].len; ++i)
1146 {
1147 if (ea[i].etype != eb[i].etype
1148 || ea[i].len != eb[i].len
1149 || ea[i].arr_len != eb[i].arr_len
1150 || ea[i].type != eb[i].type)
1151 return 0;
1152 if ((ea[i].attrib == NULL) ^ (eb[i].attrib == NULL))
1153 return 0;
1154 if (ea[i].attrib && strcmp (ea[i].attrib, eb[i].attrib) != 0)
1155 return 0;
1156 }
1157 return 1;
1158 }
1159
1160 static int
1161 e_exists (const struct entry *e)
1162 {
1163 struct entry *h;
1164 hashval_t hval;
1165
1166 hval = e_hash (e);
1167 for (h = hash_table[hval % HASH_SIZE]; h; h = h->next)
1168 if (e_eq (e, h))
1169 return 1;
1170 return 0;
1171 }
1172
1173 static void
1174 e_insert (struct entry *e)
1175 {
1176 hashval_t hval;
1177
1178 hval = e_hash (e);
1179 e->next = hash_table[hval % HASH_SIZE];
1180 hash_table[hval % HASH_SIZE] = e;
1181 }
1182
1183 /* Output a single type. */
1184 void
1185 output (struct entry *e)
1186 {
1187 int i, flex, len;
1188 char c;
1189 struct entry *n;
1190
1191 if (e[0].etype != ETYPE_STRUCT && e[0].etype != ETYPE_UNION)
1192 abort ();
1193
1194 if (e_exists (e))
1195 return;
1196
1197 n = (struct entry *) malloc ((e[0].len + 1) * sizeof (struct entry));
1198 memcpy (n, e, (e[0].len + 1) * sizeof (struct entry));
1199 e_insert (n);
1200
1201 if (idx == limidx)
1202 switchfiles (e[0].len);
1203
1204 if (e[0].etype == ETYPE_STRUCT)
1205 fprintf (outfile, "T(%d,", idx);
1206 else
1207 fprintf (outfile, "U(%d,", idx);
1208 c = 'a';
1209
1210 flex = 0;
1211 len = e[0].len;
1212 for (i = 1; i <= e[0].len; )
1213 {
1214 if (flex)
1215 {
1216 e[0].len = i - 1;
1217 break;
1218 }
1219 i += subfield (e + i, &c, &flex, 0);
1220 }
1221
1222 fputs (",", outfile);
1223 c = 'a';
1224 for (i = 1; i <= e[0].len; )
1225 {
1226 i += subvalues (e + i, namebuf, &c);
1227 if (e[0].etype == ETYPE_UNION)
1228 break;
1229 }
1230 e[0].len = len;
1231 fputs (")\n", outfile);
1232 if (output_one && idx == limidx)
1233 exit (0);
1234 ++idx;
1235 }
1236
1237 enum FEATURE
1238 {
1239 FEATURE_VECTOR = 1,
1240 FEATURE_ALIGNEDPACKED = 2,
1241 FEATURE_ZEROARRAY = 4,
1242 FEATURE_ZEROBITFLD = 8,
1243 ALL_FEATURES = FEATURE_VECTOR | FEATURE_ZEROARRAY
1244 | FEATURE_ALIGNEDPACKED | FEATURE_ZEROBITFLD
1245 };
1246
1247 void
1248 singles (enum FEATURE features)
1249 {
1250 struct entry e[2];
1251 int i;
1252 memset (e, 0, sizeof (e));
1253 e[0].etype = ETYPE_STRUCT;
1254 output (e);
1255 e[0].etype = ETYPE_UNION;
1256 output (e);
1257 e[0].len = 1;
1258 for (i = 0; i < NTYPES2; ++i)
1259 {
1260 e[0].etype = ETYPE_STRUCT;
1261 e[1].etype = ETYPE_TYPE;
1262 e[1].type = &base_types[i];
1263 output (e);
1264 e[0].etype = ETYPE_UNION;
1265 output (e);
1266 }
1267 if (features & FEATURE_VECTOR)
1268 for (i = 0; i < NVTYPES2; ++i)
1269 {
1270 e[0].etype = ETYPE_STRUCT;
1271 e[1].etype = ETYPE_TYPE;
1272 e[1].type = &vector_types[i];
1273 output (e);
1274 e[0].etype = ETYPE_UNION;
1275 output (e);
1276 }
1277 }
1278
1279 void
1280 choose_type (enum FEATURE features, struct entry *e, int r, int in_array)
1281 {
1282 int i;
1283
1284 i = NTYPES2 - NTYPES1;
1285 if (features & FEATURE_VECTOR)
1286 i += NVTYPES2;
1287 if ((r & 3) == 0)
1288 {
1289 if (in_array)
1290 i += NAATYPES2;
1291 else
1292 i += NATYPES2;
1293 }
1294 r >>= 2;
1295 r %= i;
1296 if (r < NTYPES2 - NTYPES1)
1297 e->type = &base_types[r + NTYPES1];
1298 r -= NTYPES2 - NTYPES1;
1299 if (e->type == NULL && (features & FEATURE_VECTOR))
1300 {
1301 if (r < NVTYPES2)
1302 e->type = &vector_types[r];
1303 r -= NVTYPES2;
1304 }
1305 if (e->type == NULL && !in_array)
1306 {
1307 if (r < NATYPES2)
1308 e->type = &attrib_types[r];
1309 r -= NATYPES2;
1310 }
1311 if (e->type == NULL && in_array)
1312 {
1313 if (r < NAATYPES2)
1314 e->type = &attrib_array_types[r];
1315 r -= NAATYPES2;
1316 }
1317 if (e->type == NULL)
1318 abort ();
1319 }
1320
1321 /* This is from gcc.c-torture/execute/builtin-bitops-1.c. */
1322 static int
1323 my_ffsll (unsigned long long x)
1324 {
1325 int i;
1326 if (x == 0)
1327 return 0;
1328 /* We've tested LLONG_MAX for 64 bits so this should be safe. */
1329 for (i = 0; i < 64; i++)
1330 if (x & (1ULL << i))
1331 break;
1332 return i + 1;
1333 }
1334
1335 void
1336 generate_fields (enum FEATURE features, struct entry *e, struct entry *parent,
1337 int len)
1338 {
1339 int r, i, j, ret = 1, n, incr, sametype;
1340
1341 for (n = 0; n < len; n += incr)
1342 {
1343 r = generate_random ();
1344 /* 50% ETYPE_TYPE base_types NTYPES1
1345 12.5% ETYPE_TYPE other
1346 12.5% ETYPE_ARRAY
1347 12.5% ETYPE_BITFLD
1348 12.5% ETYPE_STRUCT|ETYPE_UNION|ETYPE_STRUCT_ARRAY|ETYPE_UNION_ARRAY */
1349 i = (r & 7);
1350 r >>= 3;
1351 incr = 1;
1352 switch (i)
1353 {
1354 case 0:
1355 case 1:
1356 case 2:
1357 case 3:
1358 e[n].etype = ETYPE_TYPE;
1359 e[n].type = &base_types[r % NTYPES1];
1360 break;
1361 case 4:
1362 e[n].etype = ETYPE_TYPE;
1363 choose_type (features, &e[n], r, 0);
1364 break;
1365 case 5:
1366 e[n].etype = ETYPE_ARRAY;
1367 i = r & 1;
1368 r >>= 1;
1369 if (i)
1370 e[n].type = &base_types[r % NTYPES1];
1371 else
1372 choose_type (features, &e[n], r, 1);
1373 r = generate_random ();
1374 if ((features & FEATURE_ZEROARRAY) && (r & 3) == 0)
1375 {
1376 e[n].arr_len = 0;
1377 if (n == len - 1 && (r & 4)
1378 && (parent->etype == ETYPE_STRUCT
1379 || parent->etype == ETYPE_STRUCT_ARRAY))
1380 {
1381 int k;
1382 for (k = 0; k < n; ++k)
1383 if (e[k].etype != ETYPE_BITFLD || e[k].len)
1384 {
1385 e[n].arr_len = 255;
1386 break;
1387 }
1388 }
1389 }
1390 else if ((r & 3) != 3)
1391 e[n].arr_len = (r >> 2) & 7;
1392 else
1393 e[n].arr_len = (r >> 2) & 31;
1394 break;
1395 case 6:
1396 sametype = 1;
1397 switch (r & 7)
1398 {
1399 case 0:
1400 case 1:
1401 case 2:
1402 break;
1403 case 3:
1404 case 4:
1405 case 5:
1406 incr = 1 + (r >> 3) % (len - n);
1407 break;
1408 case 6:
1409 case 7:
1410 sametype = 0;
1411 incr = 1 + (r >> 3) % (len - n);
1412 break;
1413 }
1414 for (j = n; j < n + incr; ++j)
1415 {
1416 int mi, ma;
1417
1418 e[j].etype = ETYPE_BITFLD;
1419 if (j == n || !sametype)
1420 {
1421 int k;
1422 r = generate_random ();
1423 k = r & 3;
1424 r >>= 2;
1425 if (!k)
1426 e[j].type
1427 = &aligned_bitfld_types[r % n_aligned_bitfld_types];
1428 else
1429 e[j].type
1430 = &bitfld_types[r % n_bitfld_types];
1431 }
1432 else
1433 e[j].type = e[n].type;
1434 r = generate_random ();
1435 mi = 0;
1436 ma = 0;
1437 switch (e[j].type->bitfld)
1438 {
1439 case 'C': ma = 8; break;
1440 case 'S': ma = 16; break;
1441 case 'I': ma = 32; break;
1442 case 'L':
1443 case 'Q': ma = 64; break;
1444 case 'B': ma = 1; break;
1445 case ' ':
1446 if (e[j].type->type == TYPE_UENUM)
1447 mi = my_ffsll (e[j].type->maxval + 1) - 1;
1448 else if (e[j].type->type == TYPE_SENUM)
1449 mi = my_ffsll (e[j].type->maxval + 1);
1450 else
1451 abort ();
1452 if (!mi)
1453 mi = 1;
1454 if (mi > 32)
1455 ma = 64;
1456 else if (mi > 16 || !short_enums)
1457 ma = 32;
1458 else if (mi > 8)
1459 ma = 16;
1460 else
1461 ma = 8;
1462 break;
1463 default:
1464 abort ();
1465 }
1466 e[j].len = ma + 1;
1467 if (sametype && (r & 3) == 0 && ma > 1)
1468 {
1469 int sum = 0, k;
1470 for (k = n; k < j; ++k)
1471 sum += e[k].len;
1472 sum %= ma;
1473 e[j].len = sum ? ma - sum : ma;
1474 }
1475 r >>= 2;
1476 if (!sametype && (r & 7) == 0)
1477 ma *= 8;
1478 r >>= 3;
1479 if (! (features & FEATURE_ZEROBITFLD) && mi == 0)
1480 mi = 1;
1481 if (e[j].len < mi || e[j].len > ma)
1482 e[j].len = mi + (r % (ma + 1 - mi));
1483 r >>= 6;
1484 if ((features & FEATURE_ZEROBITFLD) && (r & 3) == 0
1485 && mi == 0)
1486 e[j].len = 0;
1487 }
1488 break;
1489 case 7:
1490 switch (r & 7)
1491 {
1492 case 0:
1493 case 1:
1494 case 2:
1495 e[n].etype = ETYPE_STRUCT;
1496 break;
1497 case 3:
1498 case 4:
1499 e[n].etype = ETYPE_UNION;
1500 break;
1501 case 5:
1502 case 6:
1503 e[n].etype = ETYPE_STRUCT_ARRAY;
1504 break;
1505 case 7:
1506 e[n].etype = ETYPE_UNION_ARRAY;
1507 break;
1508 }
1509 r >>= 3;
1510 e[n].len = r % (len - n);
1511 incr = 1 + e[n].len;
1512 generate_fields (features, &e[n + 1], &e[n], e[n].len);
1513 if (e[n].etype == ETYPE_STRUCT_ARRAY
1514 || e[n].etype == ETYPE_UNION_ARRAY)
1515 {
1516 r = generate_random ();
1517 if ((features & FEATURE_ZEROARRAY) && (r & 3) == 0)
1518 {
1519 e[n].arr_len = 0;
1520 if (n + incr == len && (r & 4)
1521 && (parent->etype == ETYPE_STRUCT
1522 || parent->etype == ETYPE_STRUCT_ARRAY))
1523 {
1524 int k;
1525 for (k = 0; k < n; ++k)
1526 if (e[k].etype != ETYPE_BITFLD || e[k].len)
1527 {
1528 e[n].arr_len = 255;
1529 break;
1530 }
1531 }
1532 }
1533 else if ((r & 3) != 3)
1534 e[n].arr_len = (r >> 2) & 7;
1535 else
1536 e[n].arr_len = (r >> 2) & 31;
1537 }
1538 break;
1539 }
1540 r = generate_random ();
1541 if ((r & 7) == 0)
1542 {
1543 r >>= 3;
1544 i = (features & FEATURE_ALIGNEDPACKED) ? NATTRIBS2 : NATTRIBS1;
1545 e[n].attrib = attributes[r % i];
1546 if (! (features & FEATURE_ALIGNEDPACKED)
1547 && strcmp (e[n].attrib, "atpa") == 0
1548 && ((e[n].type >= &attrib_types[0]
1549 && e[n].type < &attrib_types[NATYPES2])
1550 || (e[n].type >= &attrib_array_types[0]
1551 && e[n].type < &attrib_array_types[NAATYPES2])
1552 || (e[n].type >= &aligned_bitfld_types[0]
1553 && e[n].type < &aligned_bitfld_types[n_aligned_bitfld_types])))
1554 e[n].attrib = NULL;
1555 }
1556 }
1557 }
1558
1559 void
1560 generate_random_tests (enum FEATURE features, int len)
1561 {
1562 struct entry e[len + 1];
1563 int i, r;
1564 if (len > 'z' - 'a' + 1)
1565 abort ();
1566 memset (e, 0, sizeof (e));
1567 r = generate_random ();
1568 if ((r & 7) == 0 && !cxx14_vs_cxx17)
1569 e[0].etype = ETYPE_UNION;
1570 else
1571 e[0].etype = ETYPE_STRUCT;
1572 r >>= 3;
1573 e[0].len = len;
1574 generate_fields (features, &e[1], &e[0], len);
1575 output (e);
1576 }
1577
1578 struct { const char *name; enum FEATURE f; }
1579 features[] = {
1580 { "normal", 0 },
1581 { "vector", FEATURE_VECTOR },
1582 { "[0] :0", FEATURE_ZEROARRAY | FEATURE_ZEROBITFLD },
1583 { "vector [0]",
1584 FEATURE_VECTOR | FEATURE_ZEROARRAY },
1585 { "aligned packed vector [0] :0",
1586 FEATURE_VECTOR | FEATURE_ZEROARRAY
1587 | FEATURE_ALIGNEDPACKED | FEATURE_ZEROBITFLD },
1588 };
1589
1590 int
1591 main (int argc, char **argv)
1592 {
1593 int i, j, count, c, n = 3000;
1594 char *optarg;
1595
1596 if (sizeof (int) != 4 || sizeof (long long) != 8)
1597 return 1;
1598
1599 i = 1;
1600 while (i < argc)
1601 {
1602 c = '\0';
1603 if (argv[i][0] == '-' && argv[i][2] == '\0')
1604 c = argv[i][1];
1605 optarg = argv[i + 1];
1606 if (!optarg && c != 'e' && c != 'c')
1607 goto usage;
1608 switch (c)
1609 {
1610 case 'n':
1611 n = atoi (optarg);
1612 break;
1613 case 'd':
1614 destdir = optarg;
1615 break;
1616 case 's':
1617 srcdir = optarg;
1618 break;
1619 case 'i':
1620 output_one = 1;
1621 limidx = atoi (optarg);
1622 break;
1623 case 'e':
1624 short_enums = 1;
1625 i--;
1626 break;
1627 case 'c':
1628 do_cxx14_vs_cxx17 = 1;
1629 i--;
1630 break;
1631 default:
1632 fprintf (stderr, "unrecognized option %s\n", argv[i]);
1633 goto usage;
1634 }
1635 i += 2;
1636 }
1637
1638 if (output_one)
1639 {
1640 outfile = fopen ("/dev/null", "w");
1641 if (outfile == NULL)
1642 {
1643 fputs ("could not open /dev/null", stderr);
1644 return 1;
1645 }
1646 n = limidx + 1;
1647 if (do_cxx14_vs_cxx17)
1648 {
1649 fputs ("-c is incompatible with -i", stderr);
1650 return 1;
1651 }
1652 }
1653
1654 if (destdir == NULL && !output_one)
1655 {
1656 usage:
1657 fprintf (stderr, "Usage:\n\
1658 %s [-e] [-c] [-s srcdir -d destdir] [-n count] [-i idx]\n\
1659 Either -s srcdir -d destdir or -i idx must be used\n", argv[0]);
1660 return 1;
1661 }
1662
1663 if (srcdir == NULL && !output_one)
1664 goto usage;
1665
1666 if (srcdir != NULL)
1667 {
1668 const char *s = srcdir;
1669 char *ss, *t;
1670 t = ss = malloc (strlen (srcdir) + 1);
1671 if (!ss)
1672 abort ();
1673 do {
1674 if (*s == '\\')
1675 *t++ = '/';
1676 else
1677 *t++ = *s;
1678 } while (*s++);
1679 srcdir_safe = ss;
1680 }
1681
1682 for (i = 0; i < NTYPES2; ++i)
1683 if (base_types[i].bitfld)
1684 bitfld_types[n_bitfld_types++] = base_types[i];
1685 for (i = 0; i < NATYPES2; ++i)
1686 if (attrib_types[i].bitfld)
1687 aligned_bitfld_types[n_aligned_bitfld_types++] = attrib_types[i];
1688 repeat:;
1689 for (i = 0; i < sizeof (features) / sizeof (features[0]); ++i)
1690 {
1691 int startidx = idx;
1692 if (! output_one)
1693 limidx = idx;
1694 if (!i)
1695 count = 200;
1696 else
1697 count = 20;
1698 for (j = 1; j <= 9; ++j)
1699 while (idx < startidx + j * count)
1700 generate_random_tests (features[i].f, j);
1701 while (idx < startidx + count * 10)
1702 generate_random_tests (features[i].f, 10 + (generate_random () % 16));
1703 }
1704 for (i = 0; n > 3000 && i < sizeof (features) / sizeof (features[0]); ++i)
1705 {
1706 int startidx;
1707 startidx = idx;
1708 if (! output_one)
1709 limidx = idx;
1710 singles (features[i].f);
1711 if (!i)
1712 {
1713 count = 1000;
1714 while (idx < startidx + 1000)
1715 generate_random_tests (features[i].f, 1);
1716 }
1717 else
1718 {
1719 startidx = idx;
1720 count = 100;
1721 while (idx < startidx + 100)
1722 generate_random_tests (features[i].f, 1);
1723 }
1724 startidx = idx;
1725 for (j = 2; j <= 9; ++j)
1726 while (idx < startidx + (j - 1) * count)
1727 generate_random_tests (features[i].f, j);
1728 while (idx < startidx + count * 9)
1729 generate_random_tests (features[i].f, 10 + (generate_random () % 16));
1730 }
1731 if (! output_one)
1732 limidx = idx;
1733 while (idx < n)
1734 generate_random_tests (ALL_FEATURES, 1 + (generate_random () % 25));
1735 if (do_cxx14_vs_cxx17)
1736 {
1737 cxx14_vs_cxx17 = 1;
1738 do_cxx14_vs_cxx17 = 0;
1739 limidx = 0;
1740 idx = 0;
1741 goto repeat;
1742 }
1743 fclose (outfile);
1744 return 0;
1745 }
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