//===----------------------------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
// UNSUPPORTED: libcpp-has-no-threads
// UNSUPPORTED: pre-sm-70

// Compiler bug for being unable to convert __nv_hdl lambdas
// XFAIL: msvc-19.33

// <cuda/std/barrier>

#include <cuda/std/barrier>

#include "test_macros.h"
#include "concurrent_agents.h"
#include "cuda_space_selector.h"

template<template<typename> typename Barrier,
    template<typename, typename> typename Selector,
    typename Initializer = constructor_initializer>
__host__ __device__
void test()
{
  global_memory_selector<int> int_sel;
  SHARED int * x;
  x = int_sel.construct(0);

  auto comp = LAMBDA () { *x += 1; };

  Selector<Barrier<decltype(comp)>, Initializer> sel;
  SHARED Barrier<decltype(comp)> * b;
  b = sel.construct(2, comp);

  auto worker = LAMBDA () {
      for(int i = 0; i < 10; ++i)
        b->arrive_and_wait();
      assert(*x == 10);
  };

  concurrent_agents_launch(worker, worker);

  assert(*x == 10);
}

template<typename Comp>
using std_barrier = cuda::std::barrier<Comp>;
template<typename Comp>
using block_barrier = cuda::barrier<cuda::thread_scope_block, Comp>;
template<typename Comp>
using device_barrier = cuda::barrier<cuda::thread_scope_device, Comp>;
template<typename Comp>
using system_barrier = cuda::barrier<cuda::thread_scope_system, Comp>;

int main(int, char**)
{
    NV_IF_ELSE_TARGET(NV_IS_HOST,(
        cuda_thread_count = 2;

        test<std_barrier, local_memory_selector>();
        test<block_barrier, local_memory_selector>();
        test<device_barrier, local_memory_selector>();
        test<system_barrier, local_memory_selector>();
    ),(
        test<std_barrier, shared_memory_selector>();
        test<block_barrier, shared_memory_selector>();
        test<device_barrier, shared_memory_selector>();
        test<system_barrier, shared_memory_selector>();

        test<std_barrier, global_memory_selector>();
        test<block_barrier, global_memory_selector>();
        test<device_barrier, global_memory_selector>();
        test<system_barrier, global_memory_selector>();
    ))

    return 0;
}
