set(LLVM_OPTIONAL_SOURCES
  rocm-runtime-wrappers.cpp
  mlir-rocm-runner.cpp
  )

if(MLIR_ROCM_RUNNER_ENABLED)
  if (NOT ("AMDGPU" IN_LIST LLVM_TARGETS_TO_BUILD))
    message(SEND_ERROR
      "Building the mlir rocm runner requires the AMDGPU backend")
  endif()

  # Ensure lld is enabled.
  if (NOT "lld" IN_LIST LLVM_ENABLE_PROJECTS)
    message(SEND_ERROR "lld is not enabled. Please revise LLVM_ENABLE_PROJECTS")
  endif()

  # lld header files.
  include_directories(${MLIR_SOURCE_DIR}/../lld/include)

  # Configure ROCm support.
  if (NOT DEFINED ROCM_PATH)
    if (NOT DEFINED ENV{ROCM_PATH})
      set(ROCM_PATH "/opt/rocm" CACHE PATH "Path to which ROCm has been installed")
    else()
      set(ROCM_PATH $ENV{ROCM_PATH} CACHE PATH "Path to which ROCm has been installed")
    endif()
    set(HIP_PATH "${ROCM_PATH}/hip" CACHE PATH " Path to which HIP has been installed")
  endif()
  set(CMAKE_MODULE_PATH "${HIP_PATH}/cmake" ${CMAKE_MODULE_PATH})
  find_package(HIP)
  if (NOT HIP_FOUND)
    message(SEND_ERROR "Build the mlir rocm runner requires a working ROCm and HIP install")
  else()
    message(STATUS "ROCm HIP version: ${HIP_VERSION}")
  endif()

  # Set compile-time flags for ROCm path.
  add_definitions(-D__ROCM_PATH__="${ROCM_PATH}")

  # Locate HIP runtime library.
  find_library(ROCM_RUNTIME_LIBRARY hip_hcc
               PATHS "${HIP_PATH}/lib")
  if (NOT ROCM_RUNTIME_LIBRARY)
    message(SEND_ERROR "Could not locate ROCm HIP runtime library")
  else()
    message(STATUS "ROCm HIP runtime lib: ${ROCM_RUNTIME_LIBRARY}")
  endif()

  # Set HIP compile-time flags.
  add_definitions(-D__HIP_PLATFORM_HCC__)

  add_llvm_library(rocm-runtime-wrappers SHARED
    rocm-runtime-wrappers.cpp
  )
  target_include_directories(rocm-runtime-wrappers
    PRIVATE
    "${HIP_PATH}/../include"
    "${HIP_PATH}/include"
    LLVMSupport
  )
  target_link_libraries(rocm-runtime-wrappers
    PUBLIC
    LLVMSupport
    ${ROCM_RUNTIME_LIBRARY}
  )

  get_property(dialect_libs GLOBAL PROPERTY MLIR_DIALECT_LIBS)
  get_property(conversion_libs GLOBAL PROPERTY MLIR_CONVERSION_LIBS)
  set(LIBS
    ${dialect_libs}
    ${conversion_libs}
    lldCommon
    lldDriver
    lldELF
    LLVMCore
    LLVMLTO
    LLVMMC
    LLVMMCParser
    LLVMOption
    LLVMSupport
    MLIRJitRunner
    MLIRAnalysis
    MLIREDSC
    MLIRExecutionEngine
    MLIRIR
    MLIRParser
    MLIRROCDLIR
    MLIRSupport
    MLIRTargetLLVMIR
    MLIRTargetROCDLIR
    MLIRTransforms
    MLIRTranslation
    ${ROCM_RUNTIME_LIBRARY}
  )

  # Manually expand the target library, since our MLIR libraries
  # aren't plugged into the LLVM dependency tracking. If we don't
  # do this then we can't insert the CodeGen library after ourselves
  llvm_expand_pseudo_components(TARGET_LIBS AllTargetsCodeGens AllTargetsAsmParsers)
  # Prepend LLVM in front of every target, this is how the library
  # are named with CMake
  SET(targets_to_link)
  FOREACH(t ${TARGET_LIBS})
    LIST(APPEND targets_to_link "LLVM${t}")
  ENDFOREACH(t)

  add_llvm_tool(mlir-rocm-runner
    mlir-rocm-runner.cpp

    DEPENDS
    rocm-runtime-wrappers
    )
  llvm_update_compile_flags(mlir-rocm-runner)
  target_include_directories(mlir-rocm-runner
    PRIVATE
    "${HIP_PATH}/../include"
    "${HIP_PATH}/include"
  )
  target_link_libraries(mlir-rocm-runner PRIVATE ${LIBS} ${targets_to_link})

endif()