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#include <benchmark/benchmark.h>
#include <fxdiv.h>
static void fxdiv_round_down_uint32_t(benchmark::State& state) {
const fxdiv_divisor_uint32_t multiple = fxdiv_init_uint32_t(UINT32_C(65537));
uint32_t x = 0;
while (state.KeepRunning()) {
const uint32_t rounded_x = fxdiv_round_down_uint32_t(x++, multiple);
benchmark::DoNotOptimize(rounded_x);
}
}
BENCHMARK(fxdiv_round_down_uint32_t);
static void fxdiv_round_down_uint64_t(benchmark::State& state) {
const fxdiv_divisor_uint64_t multiple = fxdiv_init_uint64_t(UINT64_C(4294967311));
uint64_t x = 0;
while (state.KeepRunning()) {
const uint64_t rounded_x = fxdiv_round_down_uint64_t(x++, multiple);
benchmark::DoNotOptimize(rounded_x);
}
}
BENCHMARK(fxdiv_round_down_uint64_t);
static void native_round_down_uint32_t(benchmark::State& state) {
uint32_t multiple = UINT32_C(65537);
benchmark::DoNotOptimize(&multiple);
uint32_t x = 0;
while (state.KeepRunning()) {
const uint32_t rounded_x = x++ / multiple * multiple;
benchmark::DoNotOptimize(rounded_x);
}
}
BENCHMARK(native_round_down_uint32_t);
static void native_round_down_uint64_t(benchmark::State& state) {
uint64_t multiple = UINT64_C(4294967311);
benchmark::DoNotOptimize(&multiple);
uint64_t x = 0;
while (state.KeepRunning()) {
const uint64_t rounded_x = x++ / multiple * multiple;
benchmark::DoNotOptimize(rounded_x);
}
}
BENCHMARK(native_round_down_uint64_t);
BENCHMARK_MAIN();
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