test/benchmarks/unixbench-5.1.2/src/dhry_1.c

   1 /*****************************************************************************
   2  *  The BYTE UNIX Benchmarks - Release 3
   3  *          Module: dhry_1.c   SID: 3.4 5/15/91 19:30:21
   4  *
   5  *****************************************************************************
   6  * Bug reports, patches, comments, suggestions should be sent to:
   7  *
   8  *      Ben Smith, Rick Grehan or Tom Yager
   9  *      ben@bytepb.byte.com   rick_g@bytepb.byte.com   tyager@bytepb.byte.com
  10  *
  11  *****************************************************************************
  12  *
  13  * *** WARNING ****  With BYTE's modifications applied, results obtained with
  14  *     *******       this version of the Dhrystone program may not be applicable
  15  *                   to other versions.
  16  *
  17  *  Modification Log:
  18  *  10/22/97 - code cleanup to remove ANSI C compiler warnings
  19  *             Andy Kahn <kahn@zk3.dec.com>
  20  *
  21  *  Adapted from:
  22  *
  23  *                   "DHRYSTONE" Benchmark Program
  24  *                   -----------------------------
  25  *
  26  *  Version:    C, Version 2.1
  27  *
  28  *  File:       dhry_1.c (part 2 of 3)
  29  *
  30  *  Date:       May 25, 1988
  31  *
  32  *  Author:     Reinhold P. Weicker
  33  *
  34  ***************************************************************************/
  35 char SCCSid[] = "@(#) @(#)dhry_1.c:3.4 -- 5/15/91 19:30:21";
  36
  37 #include <stdio.h>
  38 #include <stdlib.h>
  39 #include <string.h>
  40 #include "dhry.h"
  41 #include "timeit.c"
  42
  43 unsigned long Run_Index;
  44
  45 Enumeration Func_1(Capital_Letter, Capital_Letter);
  46
  47 void report(int sig)
  48 {
  49         fprintf(stderr,"COUNT|%ld|1|lps\n", Run_Index);
  50         exit(0);
  51 }
  52
  53 /* Global Variables: */
  54
  55 Rec_Pointer     Ptr_Glob,
  56                 Next_Ptr_Glob;
  57 int             Int_Glob;
  58 Boolean         Bool_Glob;
  59 char            Ch_1_Glob,
  60                 Ch_2_Glob;
  61 int             Arr_1_Glob [50];
  62 int             Arr_2_Glob [50] [50];
  63
  64
  65 #ifndef REG
  66         Boolean Reg = false;
  67 #define REG
  68         /* REG becomes defined as empty */
  69         /* i.e. no register variables   */
  70 #else
  71         Boolean Reg = true;
  72 #endif
  73
  74 /* variables for time measurement: */
  75
  76 #ifdef TIMES
  77 struct tms      time_info;
  78 extern  int     times ();
  79                 /* see library function "times" */
  80 #define Too_Small_Time 120
  81                 /* Measurements should last at least about 2 seconds */
  82 #endif
  83 #ifdef TIME
  84 #define Too_Small_Time 2
  85                 /* Measurements should last at least 2 seconds */
  86 #endif
  87
  88 long            Begin_Time,
  89                 End_Time,
  90                 User_Time;
  91 float           Microseconds,
  92                 Dhrystones_Per_Second;
  93
  94 /* end of variables for time measurement */
  95
  96 void Proc_1 (REG Rec_Pointer Ptr_Val_Par);
  97 void Proc_2 (One_Fifty   *Int_Par_Ref);
  98 void Proc_3 (Rec_Pointer *Ptr_Ref_Par);
  99 void Proc_4 (void);
 100 void Proc_5 (void);
 101
 102
 103 extern Boolean Func_2(Str_30, Str_30);
 104 extern void Proc_6(Enumeration, Enumeration *);
 105 extern void Proc_7(One_Fifty, One_Fifty, One_Fifty *);
 106 extern void Proc_8(Arr_1_Dim, Arr_2_Dim, int, int);
 107
 108 int main (int argc, char *argv[])
 109   /* main program, corresponds to procedures        */
 110   /* Main and Proc_0 in the Ada version             */
 111 {
 112         int             duration;
 113         One_Fifty       Int_1_Loc;
 114   REG   One_Fifty       Int_2_Loc;
 115         One_Fifty       Int_3_Loc;
 116   REG   char            Ch_Index;
 117         Enumeration     Enum_Loc;
 118         Str_30          Str_1_Loc;
 119         Str_30          Str_2_Loc;
 120
 121   /* Initializations */
 122
 123   Next_Ptr_Glob = (Rec_Pointer) malloc (sizeof (Rec_Type));
 124   Ptr_Glob = (Rec_Pointer) malloc (sizeof (Rec_Type));
 125
 126   Ptr_Glob->Ptr_Comp                    = Next_Ptr_Glob;
 127   Ptr_Glob->Discr                       = Ident_1;
 128   Ptr_Glob->variant.var_1.Enum_Comp     = Ident_3;
 129   Ptr_Glob->variant.var_1.Int_Comp      = 40;
 130   strcpy (Ptr_Glob->variant.var_1.Str_Comp,
 131           "DHRYSTONE PROGRAM, SOME STRING");
 132   strcpy (Str_1_Loc, "DHRYSTONE PROGRAM, 1'ST STRING");
 133
 134   Arr_2_Glob [8][7] = 10;
 135         /* Was missing in published program. Without this statement,    */
 136         /* Arr_2_Glob [8][7] would have an undefined value.             */
 137         /* Warning: With 16-Bit processors and Number_Of_Runs > 32000,  */
 138         /* overflow may occur for this array element.                   */
 139
 140 #ifdef PRATTLE
 141   printf ("\n");
 142   printf ("Dhrystone Benchmark, Version 2.1 (Language: C)\n");
 143   printf ("\n");
 144   if (Reg)
 145   {
 146     printf ("Program compiled with 'register' attribute\n");
 147     printf ("\n");
 148   }
 149   else
 150   {
 151     printf ("Program compiled without 'register' attribute\n");
 152     printf ("\n");
 153   }
 154   printf ("Please give the number of runs through the benchmark: ");
 155   {
 156     int n;
 157     scanf ("%d", &n);
 158     Number_Of_Runs = n;
 159   }
 160   printf ("\n");
 161
 162   printf ("Execution starts, %d runs through Dhrystone\n", Number_Of_Runs);
 163 #endif /* PRATTLE */
 164
 165   if (argc != 2) {
 166     fprintf(stderr, "Usage: %s duration\n", argv[0]);
 167     exit(1);
 168     }
 169
 170   duration = atoi(argv[1]);
 171   Run_Index = 0;
 172   wake_me(duration, report);
 173
 174   /***************/
 175   /* Start timer */
 176   /***************/
 177
 178 #ifdef SELF_TIMED
 179 #ifdef TIMES
 180   times (&time_info);
 181   Begin_Time = (long) time_info.tms_utime;
 182 #endif
 183 #ifdef TIME
 184   Begin_Time = time ( (long *) 0);
 185 #endif
 186 #endif /* SELF_TIMED */
 187
 188   for (Run_Index = 1; ; ++Run_Index)
 189   {
 190
 191     Proc_5();
 192     Proc_4();
 193       /* Ch_1_Glob == 'A', Ch_2_Glob == 'B', Bool_Glob == true */
 194     Int_1_Loc = 2;
 195     Int_2_Loc = 3;
 196     strcpy (Str_2_Loc, "DHRYSTONE PROGRAM, 2'ND STRING");
 197     Enum_Loc = Ident_2;
 198     Bool_Glob = ! Func_2 (Str_1_Loc, Str_2_Loc);
 199       /* Bool_Glob == 1 */
 200     while (Int_1_Loc < Int_2_Loc)  /* loop body executed once */
 201     {
 202       Int_3_Loc = 5 * Int_1_Loc - Int_2_Loc;
 203         /* Int_3_Loc == 7 */
 204       Proc_7 (Int_1_Loc, Int_2_Loc, &Int_3_Loc);
 205         /* Int_3_Loc == 7 */
 206       Int_1_Loc += 1;
 207     } /* while */
 208       /* Int_1_Loc == 3, Int_2_Loc == 3, Int_3_Loc == 7 */
 209     Proc_8 (Arr_1_Glob, Arr_2_Glob, Int_1_Loc, Int_3_Loc);
 210       /* Int_Glob == 5 */
 211     Proc_1 (Ptr_Glob);
 212     for (Ch_Index = 'A'; Ch_Index <= Ch_2_Glob; ++Ch_Index)
 213                              /* loop body executed twice */
 214     {
 215       if (Enum_Loc == Func_1 (Ch_Index, 'C'))
 216           /* then, not executed */
 217         {
 218         Proc_6 (Ident_1, &Enum_Loc);
 219         strcpy (Str_2_Loc, "DHRYSTONE PROGRAM, 3'RD STRING");
 220         Int_2_Loc = Run_Index;
 221         Int_Glob = Run_Index;
 222         }
 223     }
 224       /* Int_1_Loc == 3, Int_2_Loc == 3, Int_3_Loc == 7 */
 225     Int_2_Loc = Int_2_Loc * Int_1_Loc;
 226     Int_1_Loc = Int_2_Loc / Int_3_Loc;
 227     Int_2_Loc = 7 * (Int_2_Loc - Int_3_Loc) - Int_1_Loc;
 228       /* Int_1_Loc == 1, Int_2_Loc == 13, Int_3_Loc == 7 */
 229     Proc_2 (&Int_1_Loc);
 230       /* Int_1_Loc == 5 */
 231
 232   } /* loop "for Run_Index" */
 233
 234   /**************/
 235   /* Stop timer */
 236   /**************/
 237 #ifdef SELF_TIMED
 238 #ifdef TIMES
 239   times (&time_info);
 240   End_Time = (long) time_info.tms_utime;
 241 #endif
 242 #ifdef TIME
 243   End_Time = time ( (long *) 0);
 244 #endif
 245 #endif /* SELF_TIMED */
 246
 247   /* BYTE version never executes this stuff */
 248 #ifdef SELF_TIMED
 249   printf ("Execution ends\n");
 250   printf ("\n");
 251   printf ("Final values of the variables used in the benchmark:\n");
 252   printf ("\n");
 253   printf ("Int_Glob:            %d\n", Int_Glob);
 254   printf ("        should be:   %d\n", 5);
 255   printf ("Bool_Glob:           %d\n", Bool_Glob);
 256   printf ("        should be:   %d\n", 1);
 257   printf ("Ch_1_Glob:           %c\n", Ch_1_Glob);
 258   printf ("        should be:   %c\n", 'A');
 259   printf ("Ch_2_Glob:           %c\n", Ch_2_Glob);
 260   printf ("        should be:   %c\n", 'B');
 261   printf ("Arr_1_Glob[8]:       %d\n", Arr_1_Glob[8]);
 262   printf ("        should be:   %d\n", 7);
 263   printf ("Arr_2_Glob[8][7]:    %d\n", Arr_2_Glob[8][7]);
 264   printf ("        should be:   Number_Of_Runs + 10\n");
 265   printf ("Ptr_Glob->\n");
 266   printf ("  Ptr_Comp:          %d\n", (int) Ptr_Glob->Ptr_Comp);
 267   printf ("        should be:   (implementation-dependent)\n");
 268   printf ("  Discr:             %d\n", Ptr_Glob->Discr);
 269   printf ("        should be:   %d\n", 0);
 270   printf ("  Enum_Comp:         %d\n", Ptr_Glob->variant.var_1.Enum_Comp);
 271   printf ("        should be:   %d\n", 2);
 272   printf ("  Int_Comp:          %d\n", Ptr_Glob->variant.var_1.Int_Comp);
 273   printf ("        should be:   %d\n", 17);
 274   printf ("  Str_Comp:          %s\n", Ptr_Glob->variant.var_1.Str_Comp);
 275   printf ("        should be:   DHRYSTONE PROGRAM, SOME STRING\n");
 276   printf ("Next_Ptr_Glob->\n");
 277   printf ("  Ptr_Comp:          %d\n", (int) Next_Ptr_Glob->Ptr_Comp);
 278   printf ("        should be:   (implementation-dependent), same as above\n");
 279   printf ("  Discr:             %d\n", Next_Ptr_Glob->Discr);
 280   printf ("        should be:   %d\n", 0);
 281   printf ("  Enum_Comp:         %d\n", Next_Ptr_Glob->variant.var_1.Enum_Comp);
 282   printf ("        should be:   %d\n", 1);
 283   printf ("  Int_Comp:          %d\n", Next_Ptr_Glob->variant.var_1.Int_Comp);
 284   printf ("        should be:   %d\n", 18);
 285   printf ("  Str_Comp:          %s\n",
 286                                 Next_Ptr_Glob->variant.var_1.Str_Comp);
 287   printf ("        should be:   DHRYSTONE PROGRAM, SOME STRING\n");
 288   printf ("Int_1_Loc:           %d\n", Int_1_Loc);
 289   printf ("        should be:   %d\n", 5);
 290   printf ("Int_2_Loc:           %d\n", Int_2_Loc);
 291   printf ("        should be:   %d\n", 13);
 292   printf ("Int_3_Loc:           %d\n", Int_3_Loc);
 293   printf ("        should be:   %d\n", 7);
 294   printf ("Enum_Loc:            %d\n", Enum_Loc);
 295   printf ("        should be:   %d\n", 1);
 296   printf ("Str_1_Loc:           %s\n", Str_1_Loc);
 297   printf ("        should be:   DHRYSTONE PROGRAM, 1'ST STRING\n");
 298   printf ("Str_2_Loc:           %s\n", Str_2_Loc);
 299   printf ("        should be:   DHRYSTONE PROGRAM, 2'ND STRING\n");
 300   printf ("\n");
 301
 302   User_Time = End_Time - Begin_Time;
 303
 304   if (User_Time < Too_Small_Time)
 305   {
 306     printf ("Measured time too small to obtain meaningful results\n");
 307     printf ("Please increase number of runs\n");
 308     printf ("\n");
 309   }
 310   else
 311   {
 312 #ifdef TIME
 313     Microseconds = (float) User_Time * Mic_secs_Per_Second
 314                         / (float) Number_Of_Runs;
 315     Dhrystones_Per_Second = (float) Number_Of_Runs / (float) User_Time;
 316 #else
 317     Microseconds = (float) User_Time * Mic_secs_Per_Second
 318                         / ((float) HZ * ((float) Number_Of_Runs));
 319     Dhrystones_Per_Second = ((float) HZ * (float) Number_Of_Runs)
 320                         / (float) User_Time;
 321 #endif
 322     printf ("Microseconds for one run through Dhrystone: ");
 323     printf ("%6.1f \n", Microseconds);
 324     printf ("Dhrystones per Second:                      ");
 325     printf ("%6.1f \n", Dhrystones_Per_Second);
 326     printf ("\n");
 327   }
 328 #endif /* SELF_TIMED */
 329 }
 330
 331
 332 void Proc_1 (REG Rec_Pointer Ptr_Val_Par)
 333     /* executed once */
 334 {
 335   REG Rec_Pointer Next_Record = Ptr_Val_Par->Ptr_Comp;
 336                                         /* == Ptr_Glob_Next */
 337   /* Local variable, initialized with Ptr_Val_Par->Ptr_Comp,    */
 338   /* corresponds to "rename" in Ada, "with" in Pascal           */
 339
 340   structassign (*Ptr_Val_Par->Ptr_Comp, *Ptr_Glob);
 341   Ptr_Val_Par->variant.var_1.Int_Comp = 5;
 342   Next_Record->variant.var_1.Int_Comp
 343         = Ptr_Val_Par->variant.var_1.Int_Comp;
 344   Next_Record->Ptr_Comp = Ptr_Val_Par->Ptr_Comp;
 345   Proc_3 (&Next_Record->Ptr_Comp);
 346     /* Ptr_Val_Par->Ptr_Comp->Ptr_Comp
 347                         == Ptr_Glob->Ptr_Comp */
 348   if (Next_Record->Discr == Ident_1)
 349     /* then, executed */
 350   {
 351     Next_Record->variant.var_1.Int_Comp = 6;
 352     Proc_6 (Ptr_Val_Par->variant.var_1.Enum_Comp,
 353            &Next_Record->variant.var_1.Enum_Comp);
 354     Next_Record->Ptr_Comp = Ptr_Glob->Ptr_Comp;
 355     Proc_7 (Next_Record->variant.var_1.Int_Comp, 10,
 356            &Next_Record->variant.var_1.Int_Comp);
 357   }
 358   else /* not executed */
 359     structassign (*Ptr_Val_Par, *Ptr_Val_Par->Ptr_Comp);
 360 } /* Proc_1 */
 361
 362
 363 void Proc_2 (One_Fifty   *Int_Par_Ref)
 364     /* executed once */
 365     /* *Int_Par_Ref == 1, becomes 4 */
 366 {
 367   One_Fifty  Int_Loc;
 368   Enumeration   Enum_Loc;
 369
 370   Enum_Loc = 0;
 371
 372   Int_Loc = *Int_Par_Ref + 10;
 373   do /* executed once */
 374     if (Ch_1_Glob == 'A')
 375       /* then, executed */
 376     {
 377       Int_Loc -= 1;
 378       *Int_Par_Ref = Int_Loc - Int_Glob;
 379       Enum_Loc = Ident_1;
 380     } /* if */
 381   while (Enum_Loc != Ident_1); /* true */
 382 } /* Proc_2 */
 383
 384
 385 void Proc_3 (Rec_Pointer *Ptr_Ref_Par)
 386     /* executed once */
 387     /* Ptr_Ref_Par becomes Ptr_Glob */
 388 {
 389   if (Ptr_Glob != Null)
 390     /* then, executed */
 391     *Ptr_Ref_Par = Ptr_Glob->Ptr_Comp;
 392   Proc_7 (10, Int_Glob, &Ptr_Glob->variant.var_1.Int_Comp);
 393 } /* Proc_3 */
 394
 395
 396 void Proc_4 (void) /* without parameters */
 397     /* executed once */
 398 {
 399   Boolean Bool_Loc;
 400
 401   Bool_Loc = Ch_1_Glob == 'A';
 402   Bool_Glob = Bool_Loc | Bool_Glob;
 403   Ch_2_Glob = 'B';
 404 } /* Proc_4 */
 405
 406 void Proc_5 (void) /* without parameters */
 407 /*******/
 408     /* executed once */
 409 {
 410   Ch_1_Glob = 'A';
 411   Bool_Glob = false;
 412 } /* Proc_5 */
 413
 414
 415         /* Procedure for the assignment of structures,          */
 416         /* if the C compiler doesn't support this feature       */
 417 #ifdef  NOSTRUCTASSIGN
 418 memcpy (d, s, l)
 419 register char   *d;
 420 register char   *s;
 421 register int    l;
 422 {
 423         while (l--) *d++ = *s++;
 424 }
 425 #endif
 426
 427