summaryrefslogtreecommitdiff
path: root/test/tsan/ignore_free.cc
blob: 4e678952c7aa43c7aa4ec29a71865b1b4273e961 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
// RUN: %clangxx_tsan -O1 %s -o %t && %run %t 2>&1 | FileCheck %s
#include "test.h"

extern "C" {
void AnnotateIgnoreReadsBegin(const char *f, int l);
void AnnotateIgnoreReadsEnd(const char *f, int l);
void AnnotateIgnoreWritesBegin(const char *f, int l);
void AnnotateIgnoreWritesEnd(const char *f, int l);
}

void *Thread(void *p) {
  *(int*)p = 42;
  barrier_wait(&barrier);
  return 0;
}

int main() {
  barrier_init(&barrier, 2);
  int *p = new int(0);
  pthread_t t;
  pthread_create(&t, 0, Thread, p);
  barrier_wait(&barrier);
  AnnotateIgnoreReadsBegin(__FILE__, __LINE__);
  AnnotateIgnoreWritesBegin(__FILE__, __LINE__);
  free(p);
  AnnotateIgnoreReadsEnd(__FILE__, __LINE__);
  AnnotateIgnoreWritesEnd(__FILE__, __LINE__);
  pthread_join(t, 0);
  fprintf(stderr, "OK\n");
  return 0;
}

// CHECK-NOT: WARNING: ThreadSanitizer: data race
// CHECK: OK