| /* SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) */ |
| /* |
| **************************************************************************** |
| * |
| * "DHRYSTONE" Benchmark Program |
| * ----------------------------- |
| * |
| * Version: C, Version 2.1 |
| * |
| * File: dhry.h (part 1 of 3) |
| * |
| * Date: May 25, 1988 |
| * |
| * Author: Reinhold P. Weicker |
| * Siemens AG, AUT E 51 |
| * Postfach 3220 |
| * 8520 Erlangen |
| * Germany (West) |
| * Phone: [+49]-9131-7-20330 |
| * (8-17 Central European Time) |
| * Usenet: ..!mcsun!unido!estevax!weicker |
| * |
| * Original Version (in Ada) published in |
| * "Communications of the ACM" vol. 27., no. 10 (Oct. 1984), |
| * pp. 1013 - 1030, together with the statistics |
| * on which the distribution of statements etc. is based. |
| * |
| * In this C version, the following C library functions are used: |
| * - strcpy, strcmp (inside the measurement loop) |
| * - printf, scanf (outside the measurement loop) |
| * In addition, Berkeley UNIX system calls "times ()" or "time ()" |
| * are used for execution time measurement. For measurements |
| * on other systems, these calls have to be changed. |
| * |
| * Collection of Results: |
| * Reinhold Weicker (address see above) and |
| * |
| * Rick Richardson |
| * PC Research. Inc. |
| * 94 Apple Orchard Drive |
| * Tinton Falls, NJ 07724 |
| * Phone: (201) 389-8963 (9-17 EST) |
| * Usenet: ...!uunet!pcrat!rick |
| * |
| * Please send results to Rick Richardson and/or Reinhold Weicker. |
| * Complete information should be given on hardware and software used. |
| * Hardware information includes: Machine type, CPU, type and size |
| * of caches; for microprocessors: clock frequency, memory speed |
| * (number of wait states). |
| * Software information includes: Compiler (and runtime library) |
| * manufacturer and version, compilation switches, OS version. |
| * The Operating System version may give an indication about the |
| * compiler; Dhrystone itself performs no OS calls in the measurement loop. |
| * |
| * The complete output generated by the program should be mailed |
| * such that at least some checks for correctness can be made. |
| * |
| *************************************************************************** |
| * |
| * History: This version C/2.1 has been made for two reasons: |
| * |
| * 1) There is an obvious need for a common C version of |
| * Dhrystone, since C is at present the most popular system |
| * programming language for the class of processors |
| * (microcomputers, minicomputers) where Dhrystone is used most. |
| * There should be, as far as possible, only one C version of |
| * Dhrystone such that results can be compared without |
| * restrictions. In the past, the C versions distributed |
| * by Rick Richardson (Version 1.1) and by Reinhold Weicker |
| * had small (though not significant) differences. |
| * |
| * 2) As far as it is possible without changes to the Dhrystone |
| * statistics, optimizing compilers should be prevented from |
| * removing significant statements. |
| * |
| * This C version has been developed in cooperation with |
| * Rick Richardson (Tinton Falls, NJ), it incorporates many |
| * ideas from the "Version 1.1" distributed previously by |
| * him over the UNIX network Usenet. |
| * I also thank Chaim Benedelac (National Semiconductor), |
| * David Ditzel (SUN), Earl Killian and John Mashey (MIPS), |
| * Alan Smith and Rafael Saavedra-Barrera (UC at Berkeley) |
| * for their help with comments on earlier versions of the |
| * benchmark. |
| * |
| * Changes: In the initialization part, this version follows mostly |
| * Rick Richardson's version distributed via Usenet, not the |
| * version distributed earlier via floppy disk by Reinhold Weicker. |
| * As a concession to older compilers, names have been made |
| * unique within the first 8 characters. |
| * Inside the measurement loop, this version follows the |
| * version previously distributed by Reinhold Weicker. |
| * |
| * At several places in the benchmark, code has been added, |
| * but within the measurement loop only in branches that |
| * are not executed. The intention is that optimizing compilers |
| * should be prevented from moving code out of the measurement |
| * loop, or from removing code altogether. Since the statements |
| * that are executed within the measurement loop have NOT been |
| * changed, the numbers defining the "Dhrystone distribution" |
| * (distribution of statements, operand types and locality) |
| * still hold. Except for sophisticated optimizing compilers, |
| * execution times for this version should be the same as |
| * for previous versions. |
| * |
| * Since it has proven difficult to subtract the time for the |
| * measurement loop overhead in a correct way, the loop check |
| * has been made a part of the benchmark. This does have |
| * an impact - though a very minor one - on the distribution |
| * statistics which have been updated for this version. |
| * |
| * All changes within the measurement loop are described |
| * and discussed in the companion paper "Rationale for |
| * Dhrystone version 2". |
| * |
| * Because of the self-imposed limitation that the order and |
| * distribution of the executed statements should not be |
| * changed, there are still cases where optimizing compilers |
| * may not generate code for some statements. To a certain |
| * degree, this is unavoidable for small synthetic benchmarks. |
| * Users of the benchmark are advised to check code listings |
| * whether code is generated for all statements of Dhrystone. |
| * |
| * Version 2.1 is identical to version 2.0 distributed via |
| * the UNIX network Usenet in March 1988 except that it corrects |
| * some minor deficiencies that were found by users of version 2.0. |
| * The only change within the measurement loop is that a |
| * non-executed "else" part was added to the "if" statement in |
| * Func_3, and a non-executed "else" part removed from Proc_3. |
| * |
| *************************************************************************** |
| * |
| * Compilation model and measurement (IMPORTANT): |
| * |
| * This C version of Dhrystone consists of three files: |
| * - dhry.h (this file, containing global definitions and comments) |
| * - dhry_1.c (containing the code corresponding to Ada package Pack_1) |
| * - dhry_2.c (containing the code corresponding to Ada package Pack_2) |
| * |
| * The following "ground rules" apply for measurements: |
| * - Separate compilation |
| * - No procedure merging |
| * - Otherwise, compiler optimizations are allowed but should be indicated |
| * - Default results are those without register declarations |
| * See the companion paper "Rationale for Dhrystone Version 2" for a more |
| * detailed discussion of these ground rules. |
| * |
| * For 16-Bit processors (e.g. 80186, 80286), times for all compilation |
| * models ("small", "medium", "large" etc.) should be given if possible, |
| * together with a definition of these models for the compiler system used. |
| * |
| ************************************************************************** |
| * |
| * Dhrystone (C version) statistics: |
| * |
| * [Comment from the first distribution, updated for version 2. |
| * Note that because of language differences, the numbers are slightly |
| * different from the Ada version.] |
| * |
| * The following program contains statements of a high level programming |
| * language (here: C) in a distribution considered representative: |
| * |
| * assignments 52 (51.0 %) |
| * control statements 33 (32.4 %) |
| * procedure, function calls 17 (16.7 %) |
| * |
| * 103 statements are dynamically executed. The program is balanced with |
| * respect to the three aspects: |
| * |
| * - statement type |
| * - operand type |
| * - operand locality |
| * operand global, local, parameter, or constant. |
| * |
| * The combination of these three aspects is balanced only approximately. |
| * |
| * 1. Statement Type: |
| * ----------------- number |
| * |
| * V1 = V2 9 |
| * (incl. V1 = F(..) |
| * V = Constant 12 |
| * Assignment, 7 |
| * with array element |
| * Assignment, 6 |
| * with record component |
| * -- |
| * 34 34 |
| * |
| * X = Y +|-|"&&"|"|" Z 5 |
| * X = Y +|-|"==" Constant 6 |
| * X = X +|- 1 3 |
| * X = Y *|/ Z 2 |
| * X = Expression, 1 |
| * two operators |
| * X = Expression, 1 |
| * three operators |
| * -- |
| * 18 18 |
| * |
| * if .... 14 |
| * with "else" 7 |
| * without "else" 7 |
| * executed 3 |
| * not executed 4 |
| * for ... 7 | counted every time |
| * while ... 4 | the loop condition |
| * do ... while 1 | is evaluated |
| * switch ... 1 |
| * break 1 |
| * declaration with 1 |
| * initialization |
| * -- |
| * 34 34 |
| * |
| * P (...) procedure call 11 |
| * user procedure 10 |
| * library procedure 1 |
| * X = F (...) |
| * function call 6 |
| * user function 5 |
| * library function 1 |
| * -- |
| * 17 17 |
| * --- |
| * 103 |
| * |
| * The average number of parameters in procedure or function calls |
| * is 1.82 (not counting the function values as implicit parameters). |
| * |
| * |
| * 2. Operators |
| * ------------ |
| * number approximate |
| * percentage |
| * |
| * Arithmetic 32 50.8 |
| * |
| * + 21 33.3 |
| * - 7 11.1 |
| * * 3 4.8 |
| * / (int div) 1 1.6 |
| * |
| * Comparison 27 42.8 |
| * |
| * == 9 14.3 |
| * /= 4 6.3 |
| * > 1 1.6 |
| * < 3 4.8 |
| * >= 1 1.6 |
| * <= 9 14.3 |
| * |
| * Logic 4 6.3 |
| * |
| * && (AND-THEN) 1 1.6 |
| * | (OR) 1 1.6 |
| * ! (NOT) 2 3.2 |
| * |
| * -- ----- |
| * 63 100.1 |
| * |
| * |
| * 3. Operand Type (counted once per operand reference): |
| * --------------- |
| * number approximate |
| * percentage |
| * |
| * Integer 175 72.3 % |
| * Character 45 18.6 % |
| * Pointer 12 5.0 % |
| * String30 6 2.5 % |
| * Array 2 0.8 % |
| * Record 2 0.8 % |
| * --- ------- |
| * 242 100.0 % |
| * |
| * When there is an access path leading to the final operand (e.g. a record |
| * component), only the final data type on the access path is counted. |
| * |
| * |
| * 4. Operand Locality: |
| * ------------------- |
| * number approximate |
| * percentage |
| * |
| * local variable 114 47.1 % |
| * global variable 22 9.1 % |
| * parameter 45 18.6 % |
| * value 23 9.5 % |
| * reference 22 9.1 % |
| * function result 6 2.5 % |
| * constant 55 22.7 % |
| * --- ------- |
| * 242 100.0 % |
| * |
| * |
| * The program does not compute anything meaningful, but it is syntactically |
| * and semantically correct. All variables have a value assigned to them |
| * before they are used as a source operand. |
| * |
| * There has been no explicit effort to account for the effects of a |
| * cache, or to balance the use of long or short displacements for code or |
| * data. |
| * |
| *************************************************************************** |
| */ |
| |
| typedef enum { |
| Ident_1, |
| Ident_2, |
| Ident_3, |
| Ident_4, |
| Ident_5 |
| } Enumeration; /* for boolean and enumeration types in Ada, Pascal */ |
| |
| /* General definitions: */ |
| |
| typedef int One_Thirty; |
| typedef int One_Fifty; |
| typedef char Capital_Letter; |
| typedef int Boolean; |
| typedef char Str_30[31]; |
| typedef int Arr_1_Dim[50]; |
| typedef int Arr_2_Dim[50][50]; |
| |
| typedef struct record { |
| struct record *Ptr_Comp; |
| Enumeration Discr; |
| union { |
| struct { |
| Enumeration Enum_Comp; |
| int Int_Comp; |
| char Str_Comp[31]; |
| } var_1; |
| struct { |
| Enumeration E_Comp_2; |
| char Str_2_Comp[31]; |
| } var_2; |
| struct { |
| char Ch_1_Comp; |
| char Ch_2_Comp; |
| } var_3; |
| } variant; |
| } Rec_Type, *Rec_Pointer; |
| |
| |
| extern int Int_Glob; |
| extern char Ch_1_Glob; |
| |
| void Proc_6(Enumeration Enum_Val_Par, Enumeration *Enum_Ref_Par); |
| void Proc_7(One_Fifty Int_1_Par_Val, One_Fifty Int_2_Par_Val, |
| One_Fifty *Int_Par_Ref); |
| void Proc_8(Arr_1_Dim Arr_1_Par_Ref, Arr_2_Dim Arr_2_Par_Ref, |
| int Int_1_Par_Val, int Int_2_Par_Val); |
| Enumeration Func_1(Capital_Letter Ch_1_Par_Val, Capital_Letter Ch_2_Par_Val); |
| Boolean Func_2(Str_30 Str_1_Par_Ref, Str_30 Str_2_Par_Ref); |
| |
| int dhry(int n); |
