llvm-project/compiler-rt/test/tsan/stack_race2.cc

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// RUN: %clangxx_tsan -O1 %s -o %t && %deflake %run %t | FileCheck %s
#include "test.h"
void *Thread2(void *a) {
barrier_wait(&barrier);
*(int*)a = 43;
return 0;
}
void *Thread(void *a) {
int Var = 42;
pthread_t t;
pthread_create(&t, 0, Thread2, &Var);
Var = 42;
barrier_wait(&barrier);
pthread_join(t, 0);
return 0;
}
int main() {
barrier_init(&barrier, 2);
pthread_t t;
pthread_create(&t, 0, Thread, 0);
pthread_join(t, 0);
}
// CHECK: WARNING: ThreadSanitizer: data race
// CHECK: Location is stack of thread T1.