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// Usage: benchmark [OPTIONS]
//
// You can pass the benchmark program one or more of the following
// options: u32, s32, u64, s64 to compare libdivide's speed against
// hardware division. If benchmark is run without any options u64
// is used as default option. benchmark tests a simple function that
// inputs an array of random numerators and a single divisor, and
// returns the sum of their quotients. It tests this using both
// hardware division, and the various division approaches supported
// by libdivide, including vector division.
// Silence MSVC sprintf unsafe warnings
#define _CRT_SECURE_NO_WARNINGS
#include "benchmark.h"
#include <string.h>
extern "C" int main(int argc, char *argv[]) {
// Disable printf buffering.
// This is mainly required for Windows.
setbuf(stdout, NULL);
bool u16 = 0;
bool s16 = 0;
bool u32 = 0;
bool s32 = 0;
bool u64 = 0;
bool s64 = 0;
if (argc == 1) {
// By default test only u64
u64 = 1;
} else {
for (int i = 1; i < argc; i++) {
if (!strcmp(argv[i], type_tag<uint16_t>::get_tag()))
u16 = true;
else if (!strcmp(argv[i], type_tag<uint32_t>::get_tag()))
u32 = true;
else if (!strcmp(argv[i], type_tag<uint64_t>::get_tag()))
u64 = true;
else if (!strcmp(argv[i], type_tag<int16_t>::get_tag()))
s16 = true;
else if (!strcmp(argv[i], type_tag<int32_t>::get_tag()))
s32 = true;
else if (!strcmp(argv[i], type_tag<int64_t>::get_tag()))
s64 = true;
else {
printf(
"Usage: benchmark [OPTIONS]\n"
"\n"
"You can pass the benchmark program one or more of the following\n"
"options: u16, s16, u32, s32, u64, s64 to compare libdivide's speed against\n"
"hardware division. If benchmark is run without any options u64\n"
"is used as default option. benchmark tests a simple function that\n"
"inputs an array of random numerators and a single divisor, and\n"
"returns the sum of their quotients. It tests this using both\n"
"hardware division, and the various division approaches supported\n"
"by libdivide, including vector division.\n");
exit(1);
}
}
}
if (u16) test_many<uint16_t>();
if (s16) test_many<int16_t>();
if (u32) test_many<uint32_t>();
if (s32) test_many<int32_t>();
if (u64) test_many<uint64_t>();
if (s64) test_many<int64_t>();
return 0;
}
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