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/*
* task-dependency.c -- Archer testcase
*/
//===----------------------------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
//
// See tools/archer/LICENSE.txt for details.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
// RUN: %libarcher-compile-and-run-race | FileCheck %s
// RUN: %libarcher-compile-and-run-race-noserial | FileCheck %s
// REQUIRES: tsan
#include "ompt/ompt-signal.h"
#include <omp.h>
#include <stdio.h>
#include <unistd.h>
int main(int argc, char *argv[]) {
int var = 0, a = 0;
#pragma omp parallel num_threads(8) shared(var, a)
#pragma omp master
{
#pragma omp task shared(var, a) depend(out : var)
{
OMPT_SIGNAL(a);
var++;
}
#pragma omp task shared(a) depend(in : var)
{
OMPT_SIGNAL(a);
OMPT_WAIT(a, 3);
}
#pragma omp task shared(var) // depend(in: var) is missing here!
{
var++;
OMPT_SIGNAL(a);
}
// Give other thread time to steal the task.
OMPT_WAIT(a, 2);
}
int error = (var != 2);
fprintf(stderr, "DONE\n");
return error;
}
// CHECK: WARNING: ThreadSanitizer: data race
// CHECK-NEXT: {{(Write|Read)}} of size 4
// CHECK-NEXT: #0 {{.*}}task-dependency.c:41
// CHECK: Previous write of size 4
// CHECK-NEXT: #0 {{.*}}task-dependency.c:30
// CHECK: DONE
// CHECK: ThreadSanitizer: reported 1 warnings
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