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|
//**************************************************************************
// Dhrystone bencmark
//--------------------------------------------------------------------------
//
// This is the classic Dhrystone synthetic integer benchmark.
// You should not change anything except the HOST_DEBUG and
// PREALLOCATE macros for your timing run.
#include "dhrystone.h"
//--------------------------------------------------------------------------
// Macros
// Set HOST_DEBUG to 1 if you are going to compile this for a host
// machine (ie Athena/Linux) for debug purposes and set HOST_DEBUG
// to 0 if you are compiling with the smips-gcc toolchain.
#ifndef HOST_DEBUG
#define HOST_DEBUG 0
#endif
// Set PREALLOCATE to 1 if you want to preallocate the benchmark
// function before starting stats. If you have instruction/data
// caches and you don't want to count the overhead of misses, then
// you will need to use preallocation.
#ifndef PREALLOCATE
#define PREALLOCATE 0
#endif
// Set SET_STATS to 1 if you want to carve out the piece that actually
// does the computation.
#ifndef SET_STATS
#define SET_STATS 0
#endif
#if HOST_DEBUG
# define do_fprintf fprintf
#else
int __attribute__((noinline)) do_fprintf(FILE* f, const char* str, ...)
{
return 0;
}
#endif
#include "util.h"
#include <alloca.h>
/* Global Variables: */
Rec_Pointer Ptr_Glob,
Next_Ptr_Glob;
int Int_Glob;
Boolean Bool_Glob;
char Ch_1_Glob,
Ch_2_Glob;
int Arr_1_Glob [50];
int Arr_2_Glob [50] [50];
#ifndef REG
Boolean Reg = false;
#define REG
/* REG becomes defined as empty */
/* i.e. no register variables */
#else
Boolean Reg = true;
#undef REG
#define REG register
#endif
Boolean Done;
long Begin_Time,
End_Time,
User_Time;
float Microseconds,
Dhrystones_Per_Second;
/* end of variables for time measurement */
int main (int argc, char** argv)
/*****/
/* main program, corresponds to procedures */
/* Main and Proc_0 in the Ada version */
{
One_Fifty Int_1_Loc;
REG One_Fifty Int_2_Loc;
One_Fifty Int_3_Loc;
REG char Ch_Index;
Enumeration Enum_Loc;
Str_30 Str_1_Loc;
Str_30 Str_2_Loc;
REG int Run_Index;
REG int Number_Of_Runs;
/* Arguments */
#if HOST_DEBUG
if (argc > 2)
{
do_fprintf (stdout, "Usage: %s [number of loops]\n", argv[0]);
exit (1);
}
if (argc == 2)
{
Number_Of_Runs = atoi (argv[1]);
} else
#endif
{
Number_Of_Runs = NUMBER_OF_RUNS;
}
if (Number_Of_Runs <= 0)
{
Number_Of_Runs = NUMBER_OF_RUNS;
}
/* Initializations */
Next_Ptr_Glob = (Rec_Pointer) alloca (sizeof (Rec_Type));
Ptr_Glob = (Rec_Pointer) alloca (sizeof (Rec_Type));
Ptr_Glob->Ptr_Comp = Next_Ptr_Glob;
Ptr_Glob->Discr = Ident_1;
Ptr_Glob->variant.var_1.Enum_Comp = Ident_3;
Ptr_Glob->variant.var_1.Int_Comp = 40;
strcpy (Ptr_Glob->variant.var_1.Str_Comp,
"DHRYSTONE PROGRAM, SOME STRING");
strcpy (Str_1_Loc, "DHRYSTONE PROGRAM, 1'ST STRING");
Arr_2_Glob [8][7] = 10;
/* Was missing in published program. Without this statement, */
/* Arr_2_Glob [8][7] would have an undefined value. */
/* Warning: With 16-Bit processors and Number_Of_Runs > 32000, */
/* overflow may occur for this array element. */
#if HOST_DEBUG
do_fprintf (stdout, "\n");
do_fprintf (stdout, "Dhrystone Benchmark, Version %s\n", Version);
if (Reg)
{
do_fprintf (stdout, "Program compiled with 'register' attribute\n");
}
else
{
do_fprintf (stdout, "Program compiled without 'register' attribute\n");
}
do_fprintf (stdout, "Using %s, HZ=%d\n", CLOCK_TYPE, HZ);
do_fprintf (stdout, "\n");
#endif
Done = false;
while (!Done) {
#if HOST_DEBUG
do_fprintf (stdout, "Trying %d runs through Dhrystone:\n", Number_Of_Runs);
#endif
/***************/
/* Start timer */
/***************/
Start_Timer();
setStats(1);
for (Run_Index = 1; Run_Index <= Number_Of_Runs; ++Run_Index)
{
Proc_5();
Proc_4();
/* Ch_1_Glob == 'A', Ch_2_Glob == 'B', Bool_Glob == true */
Int_1_Loc = 2;
Int_2_Loc = 3;
strcpy (Str_2_Loc, "DHRYSTONE PROGRAM, 2'ND STRING");
Enum_Loc = Ident_2;
Bool_Glob = ! Func_2 (Str_1_Loc, Str_2_Loc);
/* Bool_Glob == 1 */
while (Int_1_Loc < Int_2_Loc) /* loop body executed once */
{
Int_3_Loc = 5 * Int_1_Loc - Int_2_Loc;
/* Int_3_Loc == 7 */
Proc_7 (Int_1_Loc, Int_2_Loc, &Int_3_Loc);
/* Int_3_Loc == 7 */
Int_1_Loc += 1;
} /* while */
/* Int_1_Loc == 3, Int_2_Loc == 3, Int_3_Loc == 7 */
Proc_8 (Arr_1_Glob, Arr_2_Glob, Int_1_Loc, Int_3_Loc);
/* Int_Glob == 5 */
Proc_1 (Ptr_Glob);
for (Ch_Index = 'A'; Ch_Index <= Ch_2_Glob; ++Ch_Index)
/* loop body executed twice */
{
if (Enum_Loc == Func_1 (Ch_Index, 'C'))
/* then, not executed */
{
Proc_6 (Ident_1, &Enum_Loc);
strcpy (Str_2_Loc, "DHRYSTONE PROGRAM, 3'RD STRING");
Int_2_Loc = Run_Index;
Int_Glob = Run_Index;
}
}
/* Int_1_Loc == 3, Int_2_Loc == 3, Int_3_Loc == 7 */
Int_2_Loc = Int_2_Loc * Int_1_Loc;
Int_1_Loc = Int_2_Loc / Int_3_Loc;
Int_2_Loc = 7 * (Int_2_Loc - Int_3_Loc) - Int_1_Loc;
/* Int_1_Loc == 1, Int_2_Loc == 13, Int_3_Loc == 7 */
Proc_2 (&Int_1_Loc);
/* Int_1_Loc == 5 */
} /* loop "for Run_Index" */
/**************/
/* Stop timer */
/**************/
setStats(0);
Stop_Timer();
User_Time = End_Time - Begin_Time;
if (User_Time < Too_Small_Time)
{
do_fprintf (stdout, "Measured time too small to obtain meaningful results\n");
Number_Of_Runs = Number_Of_Runs * 10;
do_fprintf (stdout, "\n");
} else Done = true;
}
do_fprintf (stderr, "Final values of the variables used in the benchmark:\n");
do_fprintf (stderr, "\n");
do_fprintf (stderr, "Int_Glob: %d\n", Int_Glob);
do_fprintf (stderr, " should be: %d\n", 5);
do_fprintf (stderr, "Bool_Glob: %d\n", Bool_Glob);
do_fprintf (stderr, " should be: %d\n", 1);
do_fprintf (stderr, "Ch_1_Glob: %c\n", Ch_1_Glob);
do_fprintf (stderr, " should be: %c\n", 'A');
do_fprintf (stderr, "Ch_2_Glob: %c\n", Ch_2_Glob);
do_fprintf (stderr, " should be: %c\n", 'B');
do_fprintf (stderr, "Arr_1_Glob[8]: %d\n", Arr_1_Glob[8]);
do_fprintf (stderr, " should be: %d\n", 7);
do_fprintf (stderr, "Arr_2_Glob[8][7]: %d\n", Arr_2_Glob[8][7]);
do_fprintf (stderr, " should be: Number_Of_Runs + 10\n");
do_fprintf (stderr, "Ptr_Glob->\n");
do_fprintf (stderr, " Ptr_Comp: %d\n", (int) Ptr_Glob->Ptr_Comp);
do_fprintf (stderr, " should be: (implementation-dependent)\n");
do_fprintf (stderr, " Discr: %d\n", Ptr_Glob->Discr);
do_fprintf (stderr, " should be: %d\n", 0);
do_fprintf (stderr, " Enum_Comp: %d\n", Ptr_Glob->variant.var_1.Enum_Comp);
do_fprintf (stderr, " should be: %d\n", 2);
do_fprintf (stderr, " Int_Comp: %d\n", Ptr_Glob->variant.var_1.Int_Comp);
do_fprintf (stderr, " should be: %d\n", 17);
do_fprintf (stderr, " Str_Comp: %s\n", Ptr_Glob->variant.var_1.Str_Comp);
do_fprintf (stderr, " should be: DHRYSTONE PROGRAM, SOME STRING\n");
do_fprintf (stderr, "Next_Ptr_Glob->\n");
do_fprintf (stderr, " Ptr_Comp: %d\n", (int) Next_Ptr_Glob->Ptr_Comp);
do_fprintf (stderr, " should be: (implementation-dependent), same as above\n");
do_fprintf (stderr, " Discr: %d\n", Next_Ptr_Glob->Discr);
do_fprintf (stderr, " should be: %d\n", 0);
do_fprintf (stderr, " Enum_Comp: %d\n", Next_Ptr_Glob->variant.var_1.Enum_Comp);
do_fprintf (stderr, " should be: %d\n", 1);
do_fprintf (stderr, " Int_Comp: %d\n", Next_Ptr_Glob->variant.var_1.Int_Comp);
do_fprintf (stderr, " should be: %d\n", 18);
do_fprintf (stderr, " Str_Comp: %s\n",
Next_Ptr_Glob->variant.var_1.Str_Comp);
do_fprintf (stderr, " should be: DHRYSTONE PROGRAM, SOME STRING\n");
do_fprintf (stderr, "Int_1_Loc: %d\n", Int_1_Loc);
do_fprintf (stderr, " should be: %d\n", 5);
do_fprintf (stderr, "Int_2_Loc: %d\n", Int_2_Loc);
do_fprintf (stderr, " should be: %d\n", 13);
do_fprintf (stderr, "Int_3_Loc: %d\n", Int_3_Loc);
do_fprintf (stderr, " should be: %d\n", 7);
do_fprintf (stderr, "Enum_Loc: %d\n", Enum_Loc);
do_fprintf (stderr, " should be: %d\n", 1);
do_fprintf (stderr, "Str_1_Loc: %s\n", Str_1_Loc);
do_fprintf (stderr, " should be: DHRYSTONE PROGRAM, 1'ST STRING\n");
do_fprintf (stderr, "Str_2_Loc: %s\n", Str_2_Loc);
do_fprintf (stderr, " should be: DHRYSTONE PROGRAM, 2'ND STRING\n");
do_fprintf (stderr, "\n");
#if HOST_DEBUG
Microseconds = (float) User_Time * Mic_secs_Per_Second
/ ((float) HZ * ((float) Number_Of_Runs));
Dhrystones_Per_Second = ((float) HZ * (float) Number_Of_Runs)
/ (float) User_Time;
do_fprintf (stdout, "Microseconds for one run through Dhrystone: ");
do_fprintf (stdout, "%10.1f \n", Microseconds);
do_fprintf (stdout, "Dhrystones per Second: ");
do_fprintf (stdout, "%10.0f \n", Dhrystones_Per_Second);
do_fprintf (stdout, "\n");
#endif
return 0;
}
void Proc_1(Rec_Pointer Ptr_Val_Par)
/******************/
/* executed once */
{
REG Rec_Pointer Next_Record = Ptr_Val_Par->Ptr_Comp;
/* == Ptr_Glob_Next */
/* Local variable, initialized with Ptr_Val_Par->Ptr_Comp, */
/* corresponds to "rename" in Ada, "with" in Pascal */
structassign (*Ptr_Val_Par->Ptr_Comp, *Ptr_Glob);
Ptr_Val_Par->variant.var_1.Int_Comp = 5;
Next_Record->variant.var_1.Int_Comp
= Ptr_Val_Par->variant.var_1.Int_Comp;
Next_Record->Ptr_Comp = Ptr_Val_Par->Ptr_Comp;
Proc_3 (&Next_Record->Ptr_Comp);
/* Ptr_Val_Par->Ptr_Comp->Ptr_Comp
== Ptr_Glob->Ptr_Comp */
if (Next_Record->Discr == Ident_1)
/* then, executed */
{
Next_Record->variant.var_1.Int_Comp = 6;
Proc_6 (Ptr_Val_Par->variant.var_1.Enum_Comp,
&Next_Record->variant.var_1.Enum_Comp);
Next_Record->Ptr_Comp = Ptr_Glob->Ptr_Comp;
Proc_7 (Next_Record->variant.var_1.Int_Comp, 10,
&Next_Record->variant.var_1.Int_Comp);
}
else /* not executed */
structassign (*Ptr_Val_Par, *Ptr_Val_Par->Ptr_Comp);
} /* Proc_1 */
void Proc_2(int* Int_Par_Ref)
/******************/
/* executed once */
/* *Int_Par_Ref == 1, becomes 4 */
{
One_Fifty Int_Loc;
Enumeration Enum_Loc;
Int_Loc = *Int_Par_Ref + 10;
do /* executed once */
if (Ch_1_Glob == 'A')
/* then, executed */
{
Int_Loc -= 1;
*Int_Par_Ref = Int_Loc - Int_Glob;
Enum_Loc = Ident_1;
} /* if */
while (Enum_Loc != Ident_1); /* true */
} /* Proc_2 */
void Proc_3(Rec_Pointer* Ptr_Ref_Par)
/******************/
/* executed once */
/* Ptr_Ref_Par becomes Ptr_Glob */
{
if (Ptr_Glob != Null)
/* then, executed */
*Ptr_Ref_Par = Ptr_Glob->Ptr_Comp;
Proc_7 (10, Int_Glob, &Ptr_Glob->variant.var_1.Int_Comp);
} /* Proc_3 */
void Proc_4()
/*******/
/* executed once */
{
Boolean Bool_Loc;
Bool_Loc = Ch_1_Glob == 'A';
Bool_Glob = Bool_Loc | Bool_Glob;
Ch_2_Glob = 'B';
} /* Proc_4 */
void Proc_5()
/*******/
/* executed once */
{
Ch_1_Glob = 'A';
Bool_Glob = false;
} /* Proc_5 */
|
