| // RUN: %clang_tsan -O1 %s -o %t && %t 2>&1 | FileCheck %s |
| #include <pthread.h> |
| #include <stdio.h> |
| #include <unistd.h> |
| |
| int Global; |
| |
| extern "C" void AnnotateIgnoreWritesBegin(const char *f, int l); |
| extern "C" void AnnotateIgnoreWritesEnd(const char *f, int l); |
| extern "C" void AnnotateIgnoreReadsBegin(const char *f, int l); |
| extern "C" void AnnotateIgnoreReadsEnd(const char *f, int l); |
| |
| void *Thread(void *x) { |
| AnnotateIgnoreWritesBegin(__FILE__, __LINE__); |
| AnnotateIgnoreReadsBegin(__FILE__, __LINE__); |
| Global = 42; |
| AnnotateIgnoreReadsEnd(__FILE__, __LINE__); |
| AnnotateIgnoreWritesEnd(__FILE__, __LINE__); |
| return 0; |
| } |
| |
| int main() { |
| pthread_t t; |
| pthread_create(&t, 0, Thread, 0); |
| sleep(1); |
| Global = 43; |
| pthread_join(t, 0); |
| printf("OK\n"); |
| } |
| |
| // CHECK-NOT: WARNING: ThreadSanitizer: data race |
