xref: /llvm-project/compiler-rt/test/tsan/race_top_suppression1.cpp (revision bcaeed49cb063de9fe504aa29e1cadff8a7be710) 
1*bcaeed49SFangrui Song // RUN: echo "race_top:TopFunction" > %t.supp
2*bcaeed49SFangrui Song // RUN: %clangxx_tsan -O1 %s -o %t
3*bcaeed49SFangrui Song // RUN: %env_tsan_opts=suppressions='%t.supp' %deflake %run %t 2>&1 | FileCheck %s
4*bcaeed49SFangrui Song // RUN: rm %t.supp
5*bcaeed49SFangrui Song #include "test.h"
6*bcaeed49SFangrui Song 
7*bcaeed49SFangrui Song int Global;
8*bcaeed49SFangrui Song 
AnotherFunction(int * p)9*bcaeed49SFangrui Song void AnotherFunction(int *p) {
10*bcaeed49SFangrui Song   *p = 1;
11*bcaeed49SFangrui Song }
12*bcaeed49SFangrui Song 
TopFunction(int * p)13*bcaeed49SFangrui Song void TopFunction(int *p) {
14*bcaeed49SFangrui Song   AnotherFunction(p);
15*bcaeed49SFangrui Song }
16*bcaeed49SFangrui Song 
Thread(void * x)17*bcaeed49SFangrui Song void *Thread(void *x) {
18*bcaeed49SFangrui Song   barrier_wait(&barrier);
19*bcaeed49SFangrui Song   TopFunction(&Global);
20*bcaeed49SFangrui Song   return 0;
21*bcaeed49SFangrui Song }
22*bcaeed49SFangrui Song 
main()23*bcaeed49SFangrui Song int main() {
24*bcaeed49SFangrui Song   barrier_init(&barrier, 2);
25*bcaeed49SFangrui Song   pthread_t t;
26*bcaeed49SFangrui Song   pthread_create(&t, 0, Thread, 0);
27*bcaeed49SFangrui Song   Global--;
28*bcaeed49SFangrui Song   barrier_wait(&barrier);
29*bcaeed49SFangrui Song   pthread_join(t, 0);
30*bcaeed49SFangrui Song }
31*bcaeed49SFangrui Song 
32*bcaeed49SFangrui Song // CHECK: WARNING: ThreadSanitizer: data race
33