55 lines · c
1/*2 * task-dependency.c -- Archer testcase3 */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-exception11//12//===----------------------------------------------------------------------===//13 14 15// RUN: %libarcher-compile-and-run | FileCheck %s16// REQUIRES: tsan17#include <omp.h>18#include <stdio.h>19#include <unistd.h>20#include "ompt/ompt-signal.h"21 22int main(int argc, char *argv[]) {23 int var = 0, a = 0;24 25#pragma omp parallel num_threads(2) shared(var, a)26#pragma omp master27 {28#pragma omp task shared(var, a) depend(out : var)29 {30 var++;31 OMPT_SIGNAL(a);32 }33 34#pragma omp task shared(var, a) depend(in : var)35 { OMPT_WAIT(a, 2); }36 37#pragma omp task shared(var, a) depend(in : var)38 {39 OMPT_SIGNAL(a);40 var++;41 }42 43 // Give other thread time to steal the task.44 OMPT_WAIT(a, 1);45 }46 47 fprintf(stderr, "DONE\n");48 int error = (var != 2);49 return error;50}51 52// CHECK-NOT: ThreadSanitizer: data race53// CHECK-NOT: ThreadSanitizer: reported54// CHECK: DONE55