/*
 * Copyright (c) Advanced Micro Devices, Inc., or its affiliates.
 *
 * SPDX-License-Identifier: MIT
 */

#include "arithmetic_common.hh"
#include "atomicSub_negative_kernels_rtc.hh"

#include <hip_test_common.hh>

/**
 * @addtogroup atomicSub atomicSub
 * @{
 * @ingroup AtomicsTest
 */

// Helper function to run atomicSub tests (single kernel)
template <typename TestType>
static void runAtomicSubTest() {
  int warp_size = 0;
  HIP_CHECK(hipDeviceGetAttribute(&warp_size, hipDeviceAttributeWarpSize, 0));
  const auto cache_line_size = 128u;

  for (auto current = 0; current < cmd_options.iterations; ++current) {
    DYNAMIC_SECTION("Same address " << current) {
      SingleDeviceSingleKernelTest<TestType, AtomicOperation::kSub>(1, sizeof(TestType));
    }

    DYNAMIC_SECTION("Adjacent addresses " << current) {
      SingleDeviceSingleKernelTest<TestType, AtomicOperation::kSub>(warp_size, sizeof(TestType));
    }

    DYNAMIC_SECTION("Scattered addresses " << current) {
      SingleDeviceSingleKernelTest<TestType, AtomicOperation::kSub>(warp_size, cache_line_size);
    }
  }
}

// Helper function to run atomicSub tests (multiple kernels)
template <typename TestType>
static void runAtomicSubMultiKernelTest() {
  int warp_size = 0;
  HIP_CHECK(hipDeviceGetAttribute(&warp_size, hipDeviceAttributeWarpSize, 0));
  const auto cache_line_size = 128u;

  for (auto current = 0; current < cmd_options.iterations; ++current) {
    DYNAMIC_SECTION("Same address " << current) {
      SingleDeviceMultipleKernelTest<TestType, AtomicOperation::kSub>(2, 1, sizeof(TestType));
    }

    DYNAMIC_SECTION("Adjacent addresses " << current) {
      SingleDeviceMultipleKernelTest<TestType, AtomicOperation::kSub>(2, warp_size,
                                                                      sizeof(TestType));
    }

    DYNAMIC_SECTION("Scattered addresses " << current) {
      SingleDeviceMultipleKernelTest<TestType, AtomicOperation::kSub>(2, warp_size,
                                                                      cache_line_size);
    }
  }
}

/**
 * Test Description
 * ------------------------
 *    - Executes a single kernel on a single device wherein all threads will perform an atomic
 * subtraction on a target memory location. Each thread will subtract the same value from the memory
 * location, storing the return value into a separate output array slot corresponding to it. Once
 * complete, the output array and target memory is validated to contain all the expected values.
 * Several memory access patterns are tested:
 *      -# All threads subtract from a single, compile time deducible, memory location
 *      -# Each thread targets an array containing warp_size elements, using tid % warp_size
 *         for indexing
 *      -# Same as the above, but the elements are spread out by L1 cache line size bytes.
 *
 *    - The test is run for:
 *      - All overloads of atomicSub
 *      - hipMalloc, hipMallocManaged, hipHostMalloc and hipHostRegister allocated memory
 *      - Shared memory
 *      - Several grid and block dimension combinations (only one block is used for shared memory).
 * Test source
 * ------------------------
 *    - unit/atomics/atomicSub.cc
 * Test requirements
 * ------------------------
 *    - HIP_VERSION >= 5.2
 */
HIP_TEST_CASE(Unit_atomicSub_Positive) {
  SECTION("int") { runAtomicSubTest<int>(); }
  SECTION("unsigned int") { runAtomicSubTest<unsigned int>(); }
  SECTION("unsigned long") { runAtomicSubTest<unsigned long>(); }
  SECTION("unsigned long long") { runAtomicSubTest<unsigned long long>(); }
  SECTION("float") { runAtomicSubTest<float>(); }
  SECTION("double") { runAtomicSubTest<double>(); }
}

/**
 * Test Description
 * ------------------------
 *    - Executes a kernel two times concurrently on a single device wherein all threads will perform
 * an atomic subtraction on a target memory location. Each thread will subtract the same value from
 * the memory location, storing the return value into a separate output array slot corresponding to
 * it. Once complete, the output array and target memory is validated to contain all the expected
 * values. Several memory access patterns are tested:
 *      -# All threads subtract from a single, compile time deducible, memory location
 *      -# Each thread targets an array containing warp_size elements, using tid % warp_size
 *         for indexing
 *      -# Same as the above, but the elements are spread out by L1 cache line size bytes.
 *
 *    - The test is run for:
 *      - All overloads of atomicSub
 *      - hipMalloc, hipMallocManaged, hipHostMalloc and hipHostRegister allocated memory
 *      - Several grid and block dimension combinations.
 * Test source
 * ------------------------
 *    - unit/atomics/atomicSub.cc
 * Test requirements
 * ------------------------
 *    - HIP_VERSION >= 5.2
 */
HIP_TEST_CASE(Unit_atomicSub_Positive_Multi_Kernel) {
  SECTION("int") { runAtomicSubMultiKernelTest<int>(); }
  SECTION("unsigned int") { runAtomicSubMultiKernelTest<unsigned int>(); }
  SECTION("unsigned long") { runAtomicSubMultiKernelTest<unsigned long>(); }
  SECTION("unsigned long long") { runAtomicSubMultiKernelTest<unsigned long long>(); }
  SECTION("float") { runAtomicSubMultiKernelTest<float>(); }
  SECTION("double") { runAtomicSubMultiKernelTest<double>(); }
}

/**
 * Test Description
 * ------------------------
 *    - RTCs kernels that pass combinations of arguments of invalid types for all overloads of
 * atomicSub.
 * Test source
 * ------------------------
 *    - unit/atomics/atomicSub.cc
 * Test requirements
 * ------------------------
 *    - HIP_VERSION >= 5.2
 */
HIP_TEST_CASE(Unit_atomicSub_Negative_Parameters_RTC) {
  hiprtcProgram program{};

  const auto program_source = GENERATE(kAtomicSub_int, kAtomicSub_uint, kAtomicSub_ulong,
                                       kAtomicSub_ulonglong, kAtomicSub_float, kAtomicSub_double);
  HIPRTC_CHECK(
      hiprtcCreateProgram(&program, program_source, "atomicSub_negative.cc", 0, nullptr, nullptr));
  hiprtcResult result{hiprtcCompileProgram(program, 0, nullptr)};

  // Get the compile log and count compiler error messages
  size_t log_size{};
  HIPRTC_CHECK(hiprtcGetProgramLogSize(program, &log_size));
  std::string log(log_size, ' ');
  HIPRTC_CHECK(hiprtcGetProgramLog(program, log.data()));
  int error_count{0};

  int expected_error_count{8};
  std::string error_message{"error:"};

  size_t n_pos = log.find(error_message, 0);
  while (n_pos != std::string::npos) {
    ++error_count;
    n_pos = log.find(error_message, n_pos + 1);
  }

  HIPRTC_CHECK(hiprtcDestroyProgram(&program));
  HIPRTC_CHECK_ERROR(result, HIPRTC_ERROR_COMPILATION);
  REQUIRE(error_count == expected_error_count);
}

/**
 * End doxygen group AtomicsTest.
 * @}
 */