79 lines
1.9 KiB
C++
79 lines
1.9 KiB
C++
// RUN: %libomp-cxx-compile-and-run
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/*
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* This test aims to check whether hidden helper task can work with regular task
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* in terms of dependences. It is equivalent to the following code:
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*
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* #pragma omp parallel
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* for (int i = 0; i < N; ++i) {
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* int data1 = 0, data2 = 0;
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* #pragma omp taskgroup
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* {
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* #pragma omp hidden helper task shared(data1)
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* {
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* data1 = 1;
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* }
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* #pragma omp hidden helper task shared(data2)
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* {
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* data2 = 2;
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* }
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* }
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* assert(data1 == 1);
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* assert(data2 == 2);
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* }
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*/
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#include "common.h"
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extern "C" {
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struct kmp_task_t_with_privates {
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kmp_task_t task;
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};
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struct anon {
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int32_t *data;
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};
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}
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template <int I>
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kmp_int32 omp_task_entry(kmp_int32 gtid, kmp_task_t_with_privates *task) {
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auto shareds = reinterpret_cast<anon *>(task->task.shareds);
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auto p = shareds->data;
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*p = I;
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return 0;
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}
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int main(int argc, char *argv[]) {
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constexpr const int N = 1024;
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#pragma omp parallel for
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for (int i = 0; i < N; ++i) {
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int32_t gtid = __kmpc_global_thread_num(nullptr);
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int32_t data1 = 0, data2 = 0;
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__kmpc_taskgroup(nullptr, gtid);
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auto task1 = __kmpc_omp_target_task_alloc(
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nullptr, gtid, 1, sizeof(kmp_task_t_with_privates), sizeof(anon),
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reinterpret_cast<kmp_routine_entry_t>(omp_task_entry<1>), -1);
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auto shareds = reinterpret_cast<anon *>(task1->shareds);
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shareds->data = &data1;
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__kmpc_omp_task(nullptr, gtid, task1);
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auto task2 = __kmpc_omp_target_task_alloc(
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nullptr, gtid, 1, sizeof(kmp_task_t_with_privates), sizeof(anon),
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reinterpret_cast<kmp_routine_entry_t>(omp_task_entry<2>), -1);
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shareds = reinterpret_cast<anon *>(task2->shareds);
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shareds->data = &data2;
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__kmpc_omp_task(nullptr, gtid, task2);
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__kmpc_end_taskgroup(nullptr, gtid);
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assert(data1 == 1);
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assert(data2 == 2);
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}
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std::cout << "PASS\n";
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return 0;
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}
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// CHECK: PASS
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