OpenCores
URL https://opencores.org/ocsvn/openrisc/openrisc/trunk

Subversion Repositories openrisc

[/] [openrisc/] [trunk/] [gnu-stable/] [gcc-4.5.1/] [gcc/] [testsuite/] [gcc.misc-tests/] [dhry.h] - Blame information for rev 826

Details | Compare with Previous | View Log

Line No. Rev Author Line
1 299 jeremybenn
/*
2
 ****************************************************************************
3
 *
4
 *                   "DHRYSTONE" Benchmark Program
5
 *                   -----------------------------
6
 *
7
 *  Version:    C, Version 2.1
8
 *
9
 *  File:       dhry.h (part 1 of 3)
10
 *
11
 *  Date:       May 25, 1988
12
 *
13
 *  Author:     Reinhold P. Weicker
14
 *                      Siemens AG, AUT E 51
15
 *                      Postfach 3220
16
 *                      8520 Erlangen
17
 *                      Germany (West)
18
 *                              Phone:  [+49]-9131-7-20330
19
 *                                      (8-17 Central European Time)
20
 *                              Usenet: ..!mcsun!unido!estevax!weicker
21
 *
22
 *              Original Version (in Ada) published in
23
 *              "Communications of the ACM" vol. 27., no. 10 (Oct. 1984),
24
 *              pp. 1013 - 1030, together with the statistics
25
 *              on which the distribution of statements etc. is based.
26
 *
27
 *              In this C version, the following C library functions are used:
28
 *              - strcpy, strcmp (inside the measurement loop)
29
 *              - printf, scanf (outside the measurement loop)
30
 *              In addition, Berkeley UNIX system calls "times ()" or "time ()"
31
 *              are used for execution time measurement. For measurements
32
 *              on other systems, these calls have to be changed.
33
 *
34
 *  Collection of Results:
35
 *              Reinhold Weicker (address see above) and
36
 *
37
 *              Rick Richardson
38
 *              PC Research. Inc.
39
 *              94 Apple Orchard Drive
40
 *              Tinton Falls, NJ 07724
41
 *                      Phone:  (201) 389-8963 (9-17 EST)
42
 *                      Usenet: ...!uunet!pcrat!rick
43
 *
44
 *      Please send results to Rick Richardson and/or Reinhold Weicker.
45
 *      Complete information should be given on hardware and software used.
46
 *      Hardware information includes: Machine type, CPU, type and size
47
 *      of caches; for microprocessors: clock frequency, memory speed
48
 *      (number of wait states).
49
 *      Software information includes: Compiler (and runtime library)
50
 *      manufacturer and version, compilation switches, OS version.
51
 *      The Operating System version may give an indication about the
52
 *      compiler; Dhrystone itself performs no OS calls in the measurement loop.
53
 *
54
 *      The complete output generated by the program should be mailed
55
 *      such that at least some checks for correctness can be made.
56
 *
57
 ***************************************************************************
58
 *
59
 *  History:    This version C/2.1 has been made for two reasons:
60
 *
61
 *              1) There is an obvious need for a common C version of
62
 *              Dhrystone, since C is at present the most popular system
63
 *              programming language for the class of processors
64
 *              (microcomputers, minicomputers) where Dhrystone is used most.
65
 *              There should be, as far as possible, only one C version of
66
 *              Dhrystone such that results can be compared without
67
 *              restrictions. In the past, the C versions distributed
68
 *              by Rick Richardson (Version 1.1) and by Reinhold Weicker
69
 *              had small (though not significant) differences.
70
 *
71
 *              2) As far as it is possible without changes to the Dhrystone
72
 *              statistics, optimizing compilers should be prevented from
73
 *              removing significant statements.
74
 *
75
 *              This C version has been developed in cooperation with
76
 *              Rick Richardson (Tinton Falls, NJ), it incorporates many
77
 *              ideas from the "Version 1.1" distributed previously by
78
 *              him over the UNIX network Usenet.
79
 *              I also thank Chaim Benedelac (National Semiconductor),
80
 *              David Ditzel (SUN), Earl Killian and John Mashey (MIPS),
81
 *              Alan Smith and Rafael Saavedra-Barrera (UC at Berkeley)
82
 *              for their help with comments on earlier versions of the
83
 *              benchmark.
84
 *
85
 *  Changes:    In the initialization part, this version follows mostly
86
 *              Rick Richardson's version distributed via Usenet, not the
87
 *              version distributed earlier via floppy disk by Reinhold Weicker.
88
 *              As a concession to older compilers, names have been made
89
 *              unique within the first 8 characters.
90
 *              Inside the measurement loop, this version follows the
91
 *              version previously distributed by Reinhold Weicker.
92
 *
93
 *              At several places in the benchmark, code has been added,
94
 *              but within the measurement loop only in branches that
95
 *              are not executed. The intention is that optimizing compilers
96
 *              should be prevented from moving code out of the measurement
97
 *              loop, or from removing code altogether. Since the statements
98
 *              that are executed within the measurement loop have NOT been
99
 *              changed, the numbers defining the "Dhrystone distribution"
100
 *              (distribution of statements, operand types and locality)
101
 *              still hold. Except for sophisticated optimizing compilers,
102
 *              execution times for this version should be the same as
103
 *              for previous versions.
104
 *
105
 *              Since it has proven difficult to subtract the time for the
106
 *              measurement loop overhead in a correct way, the loop check
107
 *              has been made a part of the benchmark. This does have
108
 *              an impact - though a very minor one - on the distribution
109
 *              statistics which have been updated for this version.
110
 *
111
 *              All changes within the measurement loop are described
112
 *              and discussed in the companion paper "Rationale for
113
 *              Dhrystone version 2".
114
 *
115
 *              Because of the self-imposed limitation that the order and
116
 *              distribution of the executed statements should not be
117
 *              changed, there are still cases where optimizing compilers
118
 *              may not generate code for some statements. To a certain
119
 *              degree, this is unavoidable for small synthetic benchmarks.
120
 *              Users of the benchmark are advised to check code listings
121
 *              whether code is generated for all statements of Dhrystone.
122
 *
123
 *              Version 2.1 is identical to version 2.0 distributed via
124
 *              the UNIX network Usenet in March 1988 except that it corrects
125
 *              some minor deficiencies that were found by users of version 2.0.
126
 *              The only change within the measurement loop is that a
127
 *              non-executed "else" part was added to the "if" statement in
128
 *              Func_3, and a non-executed "else" part removed from Proc_3.
129
 *
130
 ***************************************************************************
131
 *
132
 * Defines:     The following "Defines" are possible:
133
 *              -DREG=register          (default: Not defined)
134
 *                      As an approximation to what an average C programmer
135
 *                      might do, the "register" storage class is applied
136
 *                      (if enabled by -DREG=register)
137
 *                      - for local variables, if they are used (dynamically)
138
 *                        five or more times
139
 *                      - for parameters if they are used (dynamically)
140
 *                        six or more times
141
 *                      Note that an optimal "register" strategy is
142
 *                      compiler-dependent, and that "register" declarations
143
 *                      do not necessarily lead to faster execution.
144
 *              -DNOSTRUCTASSIGN        (default: Not defined)
145
 *                      Define if the C compiler does not support
146
 *                      assignment of structures.
147
 *              -DNOENUMS               (default: Not defined)
148
 *                      Define if the C compiler does not support
149
 *                      enumeration types.
150
 *              -DTIMES                 (default)
151
 *              -DTIME
152
 *                      The "times" function of UNIX (returning process times)
153
 *                      or the "time" function (returning wallclock time)
154
 *                      is used for measurement.
155
 *                      For single user machines, "time ()" is adequate. For
156
 *                      multi-user machines where you cannot get single-user
157
 *                      access, use the "times ()" function. If you have
158
 *                      neither, use a stopwatch in the dead of night.
159
 *                      "printf"s are provided marking the points "Start Timer"
160
 *                      and "Stop Timer". DO NOT use the UNIX "time(1)"
161
 *                      command, as this will measure the total time to
162
 *                      run this program, which will (erroneously) include
163
 *                      the time to allocate storage (malloc) and to perform
164
 *                      the initialization.
165
 *              -DHZ=nnn
166
 *                      In Berkeley UNIX, the function "times" returns process
167
 *                      time in 1/HZ seconds, with HZ = 60 for most systems.
168
 *                      CHECK YOUR SYSTEM DESCRIPTION BEFORE YOU JUST APPLY
169
 *                      A VALUE.
170
 *
171
 ***************************************************************************
172
 *
173
 *  Compilation model and measurement (IMPORTANT):
174
 *
175
 *  This C version of Dhrystone consists of three files:
176
 *  - dhry.h (this file, containing global definitions and comments)
177
 *  - dhry_1.c (containing the code corresponding to Ada package Pack_1)
178
 *  - dhry_2.c (containing the code corresponding to Ada package Pack_2)
179
 *
180
 *  The following "ground rules" apply for measurements:
181
 *  - Separate compilation
182
 *  - No procedure merging
183
 *  - Otherwise, compiler optimizations are allowed but should be indicated
184
 *  - Default results are those without register declarations
185
 *  See the companion paper "Rationale for Dhrystone Version 2" for a more
186
 *  detailed discussion of these ground rules.
187
 *
188
 *  For 16-Bit processors (e.g. 80186, 80286), times for all compilation
189
 *  models ("small", "medium", "large" etc.) should be given if possible,
190
 *  together with a definition of these models for the compiler system used.
191
 *
192
 **************************************************************************
193
 *
194
 *  Dhrystone (C version) statistics:
195
 *
196
 *  [Comment from the first distribution, updated for version 2.
197
 *   Note that because of language differences, the numbers are slightly
198
 *   different from the Ada version.]
199
 *
200
 *  The following program contains statements of a high level programming
201
 *  language (here: C) in a distribution considered representative:
202
 *
203
 *    assignments                  52 (51.0 %)
204
 *    control statements           33 (32.4 %)
205
 *    procedure, function calls    17 (16.7 %)
206
 *
207
 *  103 statements are dynamically executed. The program is balanced with
208
 *  respect to the three aspects:
209
 *
210
 *    - statement type
211
 *    - operand type
212
 *    - operand locality
213
 *         operand global, local, parameter, or constant.
214
 *
215
 *  The combination of these three aspects is balanced only approximately.
216
 *
217
 *  1. Statement Type:
218
 *  -----------------             number
219
 *
220
 *     V1 = V2                     9
221
 *       (incl. V1 = F(..)
222
 *     V = Constant               12
223
 *     Assignment,                 7
224
 *       with array element
225
 *     Assignment,                 6
226
 *       with record component
227
 *                                --
228
 *                                34       34
229
 *
230
 *     X = Y +|-|"&&"|"|" Z        5
231
 *     X = Y +|-|"==" Constant     6
232
 *     X = X +|- 1                 3
233
 *     X = Y *|/ Z                 2
234
 *     X = Expression,             1
235
 *           two operators
236
 *     X = Expression,             1
237
 *           three operators
238
 *                                --
239
 *                                18       18
240
 *
241
 *     if ....                    14
242
 *       with "else"      7
243
 *       without "else"   7
244
 *           executed        3
245
 *           not executed    4
246
 *     for ...                     7  |  counted every time
247
 *     while ...                   4  |  the loop condition
248
 *     do ... while                1  |  is evaluated
249
 *     switch ...                  1
250
 *     break                       1
251
 *     declaration with            1
252
 *       initialization
253
 *                                --
254
 *                                34       34
255
 *
256
 *     P (...)  procedure call    11
257
 *       user procedure      10
258
 *       library procedure    1
259
 *     X = F (...)
260
 *             function  call      6
261
 *       user function        5
262
 *       library function     1
263
 *                                --
264
 *                                17       17
265
 *                                        ---
266
 *                                        103
267
 *
268
 *    The average number of parameters in procedure or function calls
269
 *    is 1.82 (not counting the function values as implicit parameters).
270
 *
271
 *
272
 *  2. Operators
273
 *  ------------
274
 *                          number    approximate
275
 *                                    percentage
276
 *
277
 *    Arithmetic             32          50.8
278
 *
279
 *       +                     21          33.3
280
 *       -                      7          11.1
281
 *       *                      3           4.8
282
 *       / (int div)            1           1.6
283
 *
284
 *    Comparison             27           42.8
285
 *
286
 *       ==                     9           14.3
287
 *       /=                     4            6.3
288
 *       >                      1            1.6
289
 *       <                      3            4.8
290
 *       >=                     1            1.6
291
 *       <=                     9           14.3
292
 *
293
 *    Logic                   4            6.3
294
 *
295
 *       && (AND-THEN)          1            1.6
296
 *       |  (OR)                1            1.6
297
 *       !  (NOT)               2            3.2
298
 *
299
 *                           --          -----
300
 *                           63          100.1
301
 *
302
 *
303
 *  3. Operand Type (counted once per operand reference):
304
 *  ---------------
305
 *                          number    approximate
306
 *                                    percentage
307
 *
308
 *     Integer               175        72.3 %
309
 *     Character              45        18.6 %
310
 *     Pointer                12         5.0 %
311
 *     String30                6         2.5 %
312
 *     Array                   2         0.8 %
313
 *     Record                  2         0.8 %
314
 *                           ---       -------
315
 *                           242       100.0 %
316
 *
317
 *  When there is an access path leading to the final operand (e.g. a record
318
 *  component), only the final data type on the access path is counted.
319
 *
320
 *
321
 *  4. Operand Locality:
322
 *  -------------------
323
 *                                number    approximate
324
 *                                          percentage
325
 *
326
 *     local variable              114        47.1 %
327
 *     global variable              22         9.1 %
328
 *     parameter                    45        18.6 %
329
 *        value                        23         9.5 %
330
 *        reference                    22         9.1 %
331
 *     function result               6         2.5 %
332
 *     constant                     55        22.7 %
333
 *                                 ---       -------
334
 *                                 242       100.0 %
335
 *
336
 *
337
 *  The program does not compute anything meaningful, but it is syntactically
338
 *  and semantically correct. All variables have a value assigned to them
339
 *  before they are used as a source operand.
340
 *
341
 *  There has been no explicit effort to account for the effects of a
342
 *  cache, or to balance the use of long or short displacements for code or
343
 *  data.
344
 *
345
 ***************************************************************************
346
 */
347
 
348
/* Compiler and system dependent definitions: */
349
/*
350
#ifndef TIME
351
#define TIMES
352
#endif
353
*/                /* Use times(2) time function unless    */
354
                /* explicitly defined otherwise         */
355
 
356
/*
357
 #ifndef HZ
358
 #define HZ      60
359
 #endif
360
*/
361
 
362
/*
363
#ifdef TIMES
364
#include <sys/types.h>
365
#include <sys/times.h>
366
*/                /* for "times" */
367
/*
368
#endif
369
*/
370
#define Mic_secs_Per_Second     1000000.0
371
                /* Berkeley UNIX C returns process times in seconds/HZ */
372
 
373
#ifdef  NOSTRUCTASSIGN
374
#define structassign(d, s)      memcpy(&(d), &(s), sizeof(d))
375
#else
376
#define structassign(d, s)      d = s
377
#endif
378
 
379
#ifdef  NOENUM
380
#define Ident_1 0
381
#define Ident_2 1
382
#define Ident_3 2
383
#define Ident_4 3
384
#define Ident_5 4
385
  typedef int   Enumeration;
386
#else
387
  typedef       enum    {Ident_1, Ident_2, Ident_3, Ident_4, Ident_5}
388
                Enumeration;
389
#endif
390
        /* for boolean and enumeration types in Ada, Pascal */
391
 
392
/* General definitions: */
393
 
394
#include <stdio.h>
395
#include <stdlib.h>
396
#include <string.h>
397
                /* for strcpy, strcmp */
398
 
399
#define Null 0 
400
                /* Value of a Null pointer */
401
#define true  1
402
#define false 0
403
 
404
typedef int     One_Thirty;
405
typedef int     One_Fifty;
406
typedef char    Capital_Letter;
407
typedef int     Boolean;
408
typedef char    Str_30 [31];
409
typedef int     Arr_1_Dim [50];
410
typedef int     Arr_2_Dim [50] [50];
411
 
412
typedef struct record
413
    {
414
    struct record *Ptr_Comp;
415
    Enumeration    Discr;
416
    union {
417
          struct {
418
                  Enumeration Enum_Comp;
419
                  int         Int_Comp;
420
                  char        Str_Comp [31];
421
                  } var_1;
422
          struct {
423
                  Enumeration E_Comp_2;
424
                  char        Str_2_Comp [31];
425
                  } var_2;
426
          struct {
427
                  char        Ch_1_Comp;
428
                  char        Ch_2_Comp;
429
                  } var_3;
430
          } variant;
431
      } Rec_Type, *Rec_Pointer;
432
 
433
 

powered by: WebSVN 2.1.0

© copyright 1999-2024 OpenCores.org, equivalent to Oliscience, all rights reserved. OpenCores®, registered trademark.