xref: /llvm-project/compiler-rt/test/tsan/stack_race.cpp (revision bcaeed49cb063de9fe504aa29e1cadff8a7be710) 
1*bcaeed49SFangrui Song // RUN: %clangxx_tsan -O1 %s -o %t && %deflake %run %t | FileCheck %s
2*bcaeed49SFangrui Song #include "test.h"
3*bcaeed49SFangrui Song 
Thread(void * a)4*bcaeed49SFangrui Song void *Thread(void *a) {
5*bcaeed49SFangrui Song   barrier_wait(&barrier);
6*bcaeed49SFangrui Song   *(int*)a = 43;
7*bcaeed49SFangrui Song   return 0;
8*bcaeed49SFangrui Song }
9*bcaeed49SFangrui Song 
main()10*bcaeed49SFangrui Song int main() {
11*bcaeed49SFangrui Song   barrier_init(&barrier, 2);
12*bcaeed49SFangrui Song   int Var = 42;
13*bcaeed49SFangrui Song   pthread_t t;
14*bcaeed49SFangrui Song   pthread_create(&t, 0, Thread, &Var);
15*bcaeed49SFangrui Song   Var = 43;
16*bcaeed49SFangrui Song   barrier_wait(&barrier);
17*bcaeed49SFangrui Song   pthread_join(t, 0);
18*bcaeed49SFangrui Song }
19*bcaeed49SFangrui Song 
20*bcaeed49SFangrui Song // CHECK: WARNING: ThreadSanitizer: data race
21*bcaeed49SFangrui Song // CHECK:   Location is stack of main thread.
22*bcaeed49SFangrui Song 
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