| 1 | /* |
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| 2 | * task-two.c -- Archer testcase |
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| 3 | */ |
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| 4 | //===----------------------------------------------------------------------===// |
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| 5 | // |
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| 6 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
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| 7 | // |
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| 8 | // See tools/archer/LICENSE.txt for details. |
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| 9 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
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| 10 | // |
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| 11 | //===----------------------------------------------------------------------===// |
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| 12 | |
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| 13 | // RUN: %libarcher-compile-and-run-race | FileCheck %s |
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| 14 | // RUN: %libarcher-compile-and-run-race-noserial | FileCheck %s |
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| 15 | // REQUIRES: tsan |
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| 16 | #include <omp.h> |
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| 17 | #include <stdio.h> |
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| 18 | #include <unistd.h> |
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| 19 | |
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| 20 | #define NUM_THREADS 8 |
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| 21 | |
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| 22 | int main(int argc, char *argv[]) { |
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| 23 | int var = 0; |
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| 24 | int i; |
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| 25 | |
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| 26 | #pragma omp parallel for num_threads(NUM_THREADS) shared(var) \ |
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| 27 | schedule(static, 1) |
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| 28 | for (i = 0; i < NUM_THREADS; i++) { |
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| 29 | #pragma omp task shared(var) if (0) // the task is inlined an executed locally |
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| 30 | { var++; } |
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| 31 | } |
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| 32 | |
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| 33 | int error = (var != 2); |
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| 34 | fprintf(stderr, format: "DONE\n" ); |
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| 35 | return error; |
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| 36 | } |
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| 37 | |
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| 38 | // CHECK: WARNING: ThreadSanitizer: data race |
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| 39 | // CHECK-NEXT: {{(Write|Read)}} of size 4 |
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| 40 | // CHECK-NEXT: #0 {{.*}}task-two.c:30 |
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| 41 | // CHECK: Previous write of size 4 |
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| 42 | // CHECK-NEXT: #0 {{.*}}task-two.c:30 |
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| 43 | // CHECK: DONE |
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| 44 | // CHECK: ThreadSanitizer: reported {{[0-9]+}} warnings |
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| 45 | |
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