1 /* 2 * barrier.c -- Archer testcase 3 */ 4 5 //===----------------------------------------------------------------------===// 6 // 7 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 8 // 9 // See tools/archer/LICENSE.txt for details. 10 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 11 // 12 //===----------------------------------------------------------------------===// 13 14 // RUN: %libarcher-compile-and-run | FileCheck %s 15 // REQUIRES: tsan 16 #include <omp.h> 17 #include <stdio.h> 18 main(int argc,char * argv[])19int main(int argc, char *argv[]) { 20 int var = 0; 21 22 #pragma omp parallel num_threads(2) shared(var) 23 { 24 if (omp_get_thread_num() == 0) { 25 var++; 26 } 27 28 #pragma omp barrier 29 30 if (omp_get_thread_num() == 1) { 31 var++; 32 } 33 } 34 35 fprintf(stderr, "DONE\n"); 36 int error = (var != 2); 37 return error; 38 } 39 40 // CHECK-NOT: ThreadSanitizer: data race 41 // CHECK-NOT: ThreadSanitizer: reported 42 // CHECK: DONE 43