compiler-rt/test/tsan/race_top_suppression1.cpp

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