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/* { dg-options "-O0 -pthread -fprofile-update=atomic" } */
/* { dg-require-effective-target profile_update_atomic } */
#include <pthread.h>
#define NUM_THREADS 8
#define SIZE 1024
#define ITERATIONS (1000 * 1000)
char buffer[SIZE];
char buffer2[SIZE];
void *copy_memory(char *dst, char *src, unsigned size)
{
for (unsigned i = 0; i < ITERATIONS; i++)
{
dst[size % 10] = src[size % 20];
}
}
void *foo(void *d)
{
copy_memory (buffer, buffer2, SIZE);
}
int main(int argc, char *argv[])
{
pthread_t threads[NUM_THREADS];
int rc;
long t;
for(t=0;t<NUM_THREADS;t++){
rc = pthread_create(&threads[t], NULL, foo, 0);
if (rc){
return 1;
}
}
int retval;
for(t=0;t<NUM_THREADS;t++)
pthread_join (threads[t], (void**)&retval);
return buffer[10];
}
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