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/*
* lock-unrelated.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 <omp.h>
#include <stdio.h>
int main(int argc, char *argv[]) {
int var = 0;
omp_lock_t lock;
omp_init_lock(&lock);
#pragma omp parallel num_threads(8) shared(var)
{
omp_set_lock(&lock);
// Dummy locking.
omp_unset_lock(&lock);
var++;
}
omp_destroy_lock(&lock);
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 {{.*}}lock-unrelated.c:31
// CHECK: Previous write of size 4
// CHECK-NEXT: #0 {{.*}}lock-unrelated.c:31
// CHECK: DONE
// CHECK: ThreadSanitizer: reported {{[1-7]}} warnings
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