27 lines · cpp
1// RUN: %clangxx_msan -O0 %s -o %t && %run %t2 3// Check that when TLS block is reused between threads, its shadow is cleaned.4 5#include <pthread.h>6#include <stdio.h>7 8int __thread x;9 10void *ThreadFn(void *) {11 if (!x)12 printf("zzz\n");13 int y;14 int * volatile p = &y;15 x = *p;16 return 0;17}18 19int main(void) {20 pthread_t t;21 for (int i = 0; i < 100; ++i) {22 pthread_create(&t, 0, ThreadFn, 0);23 pthread_join(t, 0);24 }25 return 0;26}27