# MIT License
#
# Copyright (c) 2017-2025 Advanced Micro Devices, Inc. All rights reserved.
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in all
# copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
# SOFTWARE.

set(PROFILE_DIR "${CMAKE_BINARY_DIR}/coverage-report")
set_property(GLOBAL PROPERTY LLVM_COV_OBJECT_ARGS "")
set(INSTALL_TEST_FILE "${CMAKE_CURRENT_BINARY_DIR}/install_CTestTestfile.cmake")
file(WRITE "${INSTALL_TEST_FILE}"
[=[
# This is a test file generated by hipCUB for install time.
# It differs slightly from the default testfile, and you may encounter issues because of that.
]=]
)

function(add_relative_test test_name test_target)
    get_target_property(EXE_PATH ${test_target} RUNTIME_OUTPUT_DIRECTORY)
    if(EXE_PATH STREQUAL "EXE_PATH-NOTFOUND")
        set(EXE_PATH ".")
    endif()
    get_filename_component(EXE_PATH "${EXE_PATH}" ABSOLUTE BASE_DIR "${CMAKE_CURRENT_BINARY_DIR}")
    get_target_property(EXE_NAME ${test_target} RUNTIME_OUTPUT_NAME)
    if(EXE_NAME STREQUAL "EXE_NAME-NOTFOUND")
        get_target_property(EXE_NAME ${test_target} OUTPUT_NAME)
        if(EXE_NAME STREQUAL "EXE_NAME-NOTFOUND")
            set(EXE_NAME "${test_target}")
        endif()
    endif()
    if(BUILD_CODE_COVERAGE)
	 set(ABS_EXE "${EXE_PATH}/${EXE_NAME}")
        set_property(GLOBAL APPEND PROPERTY LLVM_COV_OBJECT_ARGS -object "${ABS_EXE}")
    endif()
    file(RELATIVE_PATH rel_path "${CMAKE_CURRENT_BINARY_DIR}" "${EXE_PATH}/${EXE_NAME}")
    if(BUILD_COMPUTE_SANITIZER)
        add_test(NAME "${test_name}" COMMAND "compute-sanitizer" "./${rel_path}")
    else()
        add_test(NAME "${test_name}" COMMAND "./${rel_path}")
    endif()
    if(BUILD_CODE_COVERAGE)
      set_tests_properties(${test_name} PROPERTIES
        ENVIRONMENT "LLVM_PROFILE_FILE=${PROFILE_DIR}/profraw/hipcub-coverage_%m.profraw"
      )
    endif()
    rocm_install(TARGETS ${test_target} COMPONENT tests)
    file(APPEND "${INSTALL_TEST_FILE}" "add_test(${test_name} \"../${EXE_NAME}\")\n")
endfunction()

# hipCUB tests
add_subdirectory(hipcub)

if(BUILD_CODE_COVERAGE)
  add_custom_target(
    coverage_analysis
    COMMAND ${CMAKE_COMMAND} -E rm -rf ${PROFILE_DIR}
    COMMAND ${CMAKE_COMMAND} -E make_directory ${PROFILE_DIR}/profraw
    COMMAND ctest --output-on-failure
    WORKING_DIRECTORY ${CMAKE_BINARY_DIR}
  )

  find_program(
    LLVM_PROFDATA
    llvm-profdata
    REQUIRED
    HINTS ${ROCM_PATH}/llvm/bin
    PATHS /opt/rocm/llvm/bin
  )

  find_program(
    LLVM_COV
    llvm-cov
    REQUIRED
    HINTS ${ROCM_PATH}/llvm/bin
    PATHS /opt/rocm/llvm/bin
  )

  get_property(LLVM_COV_OBJECT_ARGS GLOBAL PROPERTY LLVM_COV_OBJECT_ARGS)
  add_custom_target(
    coverage
    DEPENDS coverage_analysis
    COMMAND ${LLVM_PROFDATA} merge -sparse ${PROFILE_DIR}/profraw/hipcub-coverage_*.profraw -o ${PROFILE_DIR}/hipcub.profdata
    COMMAND ${LLVM_COV} report ${LLVM_COV_OBJECT_ARGS} --ignore-filename-regex="test_*" -instr-profile=${PROFILE_DIR}/hipcub.profdata
    COMMAND ${LLVM_COV} show ${LLVM_COV_OBJECT_ARGS} --ignore-filename-regex="test_*" -instr-profile=${PROFILE_DIR}/hipcub.profdata -format=html -output-dir=${PROFILE_DIR}
    COMMAND ${LLVM_COV} export ${LLVM_COV_OBJECT_ARGS} --ignore-filename-regex="test_*" -instr-profile=./coverage-report/hipcub.profdata -format=lcov > ./coverage-report/coverage.info
    WORKING_DIRECTORY ${CMAKE_BINARY_DIR}
  )
endif()

rocm_install(
    FILES "${INSTALL_TEST_FILE}"
    DESTINATION "${CMAKE_INSTALL_BINDIR}/${PROJECT_NAME}"
    COMPONENT tests
    RENAME "CTestTestfile.cmake"
)
