source: benchmark/tls-fetch_add.c @ 093a5d7

#include <stdbool.h>
#include <stdio.h>

#include "bench.h"

#define thread_local _Thread_local

thread_local volatile bool value;

void __attribute__((noinline)) do_call() {
        __atomic_store_n( &value, true, __ATOMIC_RELAXED );
        __atomic_signal_fence(__ATOMIC_ACQUIRE);
        asm volatile ("");
        __atomic_store_n( &value, false, __ATOMIC_RELAXED );
        __atomic_signal_fence(__ATOMIC_RELEASE);
}

int main(int argc, char* argv[]) {
        BENCH(
                for (size_t i = 0; i < n; i++) {
                        do_call();
                },
                result
        )

        printf("%g\n", result);
}