blob: 5ee94e9a967babe486bcfcc8e16f9b67744f67e0 [file] [log] [blame]
// RUN: %clang_tsan -O1 %s -o %t && %run %t 2>&1 | FileCheck %s
#include "test.h"
// Test for https://llvm.org/bugs/show_bug.cgi?id=23235
// The bug was that synchronization between thread creation and thread start
// is not established if pthread_create is followed by pthread_detach.
int x;
void *Thread(void *a) {
x = 42;
barrier_wait(&barrier);
return 0;
}
int main() {
barrier_init(&barrier, 2);
pthread_t t;
x = 43;
pthread_create(&t, 0, Thread, 0);
pthread_detach(t);
barrier_wait(&barrier);
fprintf(stderr, "PASS\n");
return 0;
}
// CHECK-NOT: WARNING: ThreadSanitizer: data race
// CHECK: PASS