Add standalone cases (#3536)
This commit is contained in:
@ -0,0 +1,49 @@
|
||||
/*
|
||||
* Copyright (C) 2023 Intel Corporation. All rights reserved.
|
||||
* SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
|
||||
*/
|
||||
#include <stdio.h>
|
||||
#include <pthread.h>
|
||||
|
||||
// x XOR x -> 0
|
||||
// even num of thread -> g_val should end up with its original value
|
||||
#define MAX_NUM_THREADS 4
|
||||
#define NUM_ITER 199999
|
||||
|
||||
int g_val = 5050;
|
||||
|
||||
static void *
|
||||
thread(void *arg)
|
||||
{
|
||||
for (int i = 0; i < NUM_ITER; i++) {
|
||||
__atomic_fetch_xor(&g_val, i, __ATOMIC_SEQ_CST);
|
||||
}
|
||||
|
||||
return NULL;
|
||||
}
|
||||
|
||||
int
|
||||
main(int argc, char **argv)
|
||||
{
|
||||
|
||||
pthread_t tids[MAX_NUM_THREADS];
|
||||
|
||||
for (int i = 0; i < MAX_NUM_THREADS; i++) {
|
||||
if (pthread_create(&tids[i], NULL, thread, NULL) != 0) {
|
||||
printf("Thread creation failed\n");
|
||||
}
|
||||
}
|
||||
|
||||
for (int i = 0; i < MAX_NUM_THREADS; i++) {
|
||||
if (pthread_join(tids[i], NULL) != 0) {
|
||||
printf("Thread join failed\n");
|
||||
}
|
||||
}
|
||||
|
||||
printf("Global value after update: %d (expected=%d)\n", g_val, 5050);
|
||||
if (g_val != 5050) {
|
||||
__builtin_trap();
|
||||
}
|
||||
|
||||
return -1;
|
||||
}
|
||||
Reference in New Issue
Block a user