| // RUN: %libarcher-compile -fopenmp-version=50 && env OMP_NUM_THREADS='3' \ |
| // RUN: %libarcher-run-race | FileCheck %s |
| |
| // Checked gcc 10.1 still does not support detach clause on task construct. |
| // UNSUPPORTED: gcc-4, gcc-5, gcc-6, gcc-7, gcc-8, gcc-9, gcc-10 |
| // gcc 11 introduced detach clause, but gomp interface in libomp has no support |
| // XFAIL: gcc-11, gcc-12 |
| // clang supports detach clause since version 11. |
| // UNSUPPORTED: clang-10, clang-9, clang-8, clang-7 |
| // icc compiler does not support detach clause. |
| // UNSUPPORTED: icc |
| // REQUIRES: tsan |
| |
| #include <omp.h> |
| #include <stdio.h> |
| #include <unistd.h> |
| |
| int main() { |
| #pragma omp parallel |
| #pragma omp master |
| { |
| omp_event_handle_t event; |
| int a = 0, b = 0; |
| omp_event_handle_t *f_event; |
| #pragma omp task detach(event) depend(out : f_event) shared(f_event) |
| { |
| printf("%i: task 1\n", omp_get_thread_num()); |
| f_event = &event; |
| } |
| usleep(10000); |
| #pragma omp task depend(in : f_event) shared(f_event, a, b) |
| { |
| printf("%i: task 2, %p, %i, %i\n", omp_get_thread_num(), f_event, a, b); |
| f_event = &event; |
| } |
| usleep(10000); |
| a++; |
| printf("%i: calling omp_fulfill_event\n", omp_get_thread_num()); |
| omp_fulfill_event(event); |
| //#pragma omp task if (0) depend(in : f_event) |
| // {} |
| b++; |
| usleep(10000); |
| #pragma omp taskwait |
| } |
| return 0; |
| } |
| |
| // no race for a++ in line 32: |
| // CHECK-NOT: #0 {{.*}}task_late_fulfill.c:37 |
| |
| // CHECK: WARNING: ThreadSanitizer: data race |
| // CHECK-NEXT: {{(Write|Read)}} of size 4 |
| // CHECK-NEXT: #0 {{.*}}task_late_fulfill.c:33 |
| // CHECK: Previous write of size 4 |
| // CHECK-NEXT: #0 {{.*}}task_late_fulfill.c:42 |