# Copyright 2013-2021 Lawrence Livermore National Security, LLC and other
# Spack Project Developers. See the top-level COPYRIGHT file for details.
#
# SPDX-License-Identifier: (Apache-2.0 OR MIT)

import re

from spack import *

tools_url = 'https://github.com/ROCm-Developer-Tools'
compute_url = 'https://github.com/RadeonOpenCompute'


aomp = [
    "e4526489833896bbc47ba865e0d115fab278ce269789a8c99a97f444595f5f6a",
    "970374c3acb9dda8b9a17d7a579dbaab48fac731db8fdce566a65abee37e5ed3",
    "86f90d6505eccdb2840069cadf57f7111d4685653c4974cf65fb22b172e55478",
    "14fc6867af0b17e3bff8cb42cb36f509c95a29b7a933a106bf6778de21f6c123",
    "ce29cead5391a4a13f2c567e2e059de9291888d24985460725e43a91b740be7a"
]

devlib = [
    "dce3a4ba672c4a2da4c2260ee4dc96ff6dd51877f5e7e1993cb107372a35a378",
    "b3a114180bf184b3b829c356067bc6a98021d52c1c6f9db6bc57272ebafc5f1d",
    "e82cc9a8eb7d92de02cabb856583e28f17a05c8cf9c97aec5275608ef1a38574",
    "c99f45dacf5967aef9a31e3731011b9c142446d4a12bac69774998976f2576d7",
    "bca9291385d6bdc91a8b39a46f0fd816157d38abb1725ff5222e6a0daa0834cc"
]

llvm = [
    "b4fd7305dc57887eec17cce77bbf42215db46a4a3d14d8e517ab92f4e200b29d",
    "89b967de5e79f6df7c62fdc12529671fa30989ae7b634d5a7c7996629ec1140e",
    "98deabedb6cb3067ee960a643099631902507f236e4d9dc65b3e0f8d659eb55c",
    "f0a0b9fec0626878340a15742e73a56f155090011716461edcb069dcf05e6b30",
    "3ff18a8bd31d5b55232327e574dfa3556cf26787e105d0ba99411c5687325a8d"
]

flang = [
    "cc27f8bfb49257b7a4f0b03f4ba5e06a28dcb6c337065c4201b6075dd2d5bc48",
    "1fe07a0da20eb66a2a2aa8d354bf95c6f216ec38cc4a051e98041e0d13c34b36",
    "54cc6a9706dba6d7808258632ed40fa6493838edb309709d3b25e0f9b02507f8",
    "43d57bcc87fab092ac242e36da62588a87b6fa91f9e81fdb330159497afdecb3",
    "81674bf3c9d8fd9b16fb3e5c66a870537c25ff8302fc1b162ab9e95944167163"
]

extras = [
    "5dbf27f58b8114318208b97ba99a90483b78eebbcad4117cac6881441977e855",
    "adaf7670b2497ff3ac09636e0dd30f666a5a5b742ecdcb8551d722102dcfbd85",
    "4460a4f4b03022947f536221483e85dcd9b07064a54516ec103a1939c3f587b5",
    "014fca1fba54997c6db0e84822df274fb6807698b6856da4f737f38f10ab0e5d",
    "ee146cff4b9ee7aae90d7bb1d6b4957839232be0e7dab1865e0ae39832f8f795"
]

# Used only for 3.5.0
hip = [
    "86eb7749ff6f6c5f6851cd6c528504d42f9286967324a50dd0dd54a6a74cacc7"
]

vdi = [
    "b21866c7c23dc536356db139b88b6beb3c97f58658836974a7fc167feb31ad7f"
]

opencl = [
    "8963fcd5a167583b3db8b94363778d4df4593bfce8141e1d3c32a59fb64a0cf6"
]

versions = ['3.5.0', '3.7.0', '3.8.0', '3.9.0', '3.10.0']
versions_dict = dict()
hashes = [aomp, devlib, llvm, flang, extras]
hashes_35 = [aomp, devlib, llvm, flang, extras, hip, vdi, opencl]
components = ['aomp', 'devlib', 'llvm', 'flang', 'extras']
components_35 = [
    'aomp', 'devlib', 'llvm', 'flang', 'extras', 'hip', 'vdi', 'opencl'
]

for outer_index, item in enumerate(versions):
    if item == '3.5.0':
        use_components = components_35
        use_hashes = hashes_35
    else:
        use_components = components
        use_hashes = hashes
    for inner_index, component in enumerate(use_hashes):
        versions_dict.setdefault(item, {})[use_components[inner_index]] = \
            use_hashes[inner_index][outer_index]


class Aomp(Package):
    """llvm openmp compiler from AMD."""

    homepage = tools_url + "/aomp"
    url = tools_url + "/aomp/archive/rocm-3.10.0.tar.gz"

    maintainers = ['srekolam', 'arjun-raj-kuppala', 'estewart08']

    tags = ['e4s']

    version('3.10.0', sha256=versions_dict['3.10.0']['aomp'])
    version('3.9.0', sha256=versions_dict['3.9.0']['aomp'])
    version('3.8.0', sha256=versions_dict['3.8.0']['aomp'])
    version('3.7.0', sha256=versions_dict['3.7.0']['aomp'])
    version('3.5.0', sha256=versions_dict['3.5.0']['aomp'])

    # Cmake above 3.18 would fail the build on 3.5.0
    depends_on('cmake@3:', type='build')
    depends_on('cmake@3:3.17', when='@3.5.0', type='build')

    # Python 2 is needed for 3.5.0 and 3.8.0, limit py-setuptools
    # to avoid spec error
    depends_on('python@2.7:2.8', when='@3.5.0:3.8.0', type='build')
    depends_on('py-setuptools@:44', when='@3.5.0:3.8.0',
               type='build')

    depends_on('python@3:', type='build', when='@3.9.0:')
    depends_on('py-setuptools', when='@3.9.0:', type='build')

    depends_on('mesa18~llvm@18.3:', type=('build', 'link'))
    depends_on('py-pip', when='@3.8.0:', type='build')
    depends_on('py-wheel', when='@3.8.0:', type=('build', 'run'))
    depends_on('perl-data-dumper', type='build')
    depends_on('awk', type='build')
    depends_on('elfutils', type=('build', 'link'))
    depends_on('libffi', type=('build', 'link'))

    for ver in ['3.5.0', '3.7.0', '3.8.0', '3.9.0', '3.10.0']:
        depends_on('hsakmt-roct@' + ver, when='@' + ver)
        depends_on('comgr@' + ver, type='build', when='@' + ver)
        depends_on('hsa-rocr-dev@' + ver, when='@' + ver)
        depends_on('rocm-device-libs@' + ver, when='@' + ver)

        if ver != '3.5.0':
            depends_on('hip@' + ver, when='@' + ver)
            depends_on('hip-rocclr@' + ver, when='@' + ver)

        if ver == '3.9.0' or ver == '3.10.0':
            depends_on('rocm-gdb@' + ver, when='@' + ver)

        resource(
            name='rocm-device-libs',
            url=compute_url +
            '/ROCm-Device-Libs/archive/rocm-' + ver + '.tar.gz',
            sha256=versions_dict[ver]['devlib'],
            expand=True,
            destination='aomp-dir',
            placement='rocm-device-libs',
            when='@' + ver)

        resource(
            name='amd-llvm-project',
            url=tools_url + '/amd-llvm-project/archive/rocm-' + ver
                          + '.tar.gz',
            sha256=versions_dict[ver]['llvm'],
            expand=True,
            destination='aomp-dir',
            placement='amd-llvm-project',
            when='@' + ver)

        resource(
            name='flang',
            url=tools_url + '/flang/archive/rocm-' + ver + '.tar.gz',
            sha256=versions_dict[ver]['flang'],
            expand=True,
            destination='aomp-dir',
            placement='flang',
            when='@' + ver)

        resource(
            name='aomp-extras',
            url=tools_url + '/aomp-extras/archive/rocm-' + ver + '.tar.gz',
            sha256=versions_dict[ver]['extras'],
            expand=True,
            destination='aomp-dir',
            placement='aomp-extras',
            when='@' + ver)

        if ver == '3.5.0':
            resource(
                name='hip-on-vdi',
                url=tools_url + '/hip/archive/aomp-3.5.0.tar.gz',
                sha256=versions_dict['3.5.0']['hip'],
                expand=True,
                destination='aomp-dir',
                placement='hip-on-vdi',
                when='@3.5.0')

            resource(
                name='vdi',
                url=tools_url + '/rocclr/archive/aomp-3.5.0.tar.gz',
                sha256=versions_dict['3.5.0']['vdi'],
                expand=True,
                destination='aomp-dir',
                placement='vdi',
                when='@3.5.0')

            resource(
                name='opencl-on-vdi',
                sha256=versions_dict['3.5.0']['opencl'],
                url=compute_url +
                '/ROCm-OpenCL-Runtime/archive/aomp-3.5.0.tar.gz',
                expand=True,
                destination='aomp-dir',
                placement='opencl-on-vdi',
                when='@3.5.0')

    # Copy source files over for debug build in 3.9.0
    patch('0001-Add-cmake-option-for-copying-source-for-debugging.patch',
          working_dir='aomp-dir/amd-llvm-project', when='@3.9.0:')

    # Revert back to .amdgcn.bc naming scheme for 3.8.0
    patch('0001-Add-amdgcn-to-devicelibs-bitcode-names-3.8.patch',
          working_dir='aomp-dir/amd-llvm-project', when='@3.8.0')

    # Revert back to .amdgcn.bc naming scheme for 3.7.0
    patch('0001-Add-amdgcn-to-devicelibs-bitcode-names.patch',
          working_dir='aomp-dir/amd-llvm-project', when='@3.7.0')

    def patch(self):
        # Make sure python2.7 is used for the generation of hip header
        if self.spec.version == Version('3.5.0'):
            kwargs = {'ignore_absent': False, 'backup': False, 'string': False}
            with working_dir('aomp-dir/hip-on-vdi'):
                match = '^#!/usr/bin/python'
                python = self.spec['python'].command.path
                substitute = "#!{python}".format(python=python)
                files = [
                    'hip_prof_gen.py', 'vdi/hip_prof_gen.py'
                ]
                filter_file(match, substitute, *files, **kwargs)
        src = self.stage.source_path
        libomptarget = '{0}/aomp-dir/amd-llvm-project/openmp/libomptarget'
        aomp_extras = '{0}/aomp-dir/aomp-extras/aomp-device-libs'
        flang = '{0}/aomp-dir/flang/'

        if self.spec.version >= Version('3.9.0'):
            filter_file(
                'ADDITIONAL_VERSIONS 2.7', 'ADDITIONAL_VERSIONS 3',
                flang.format(src) + 'CMakeLists.txt')

        if self.spec.version >= Version('3.8.0'):
            filter_file(
                '{CMAKE_INSTALL_PREFIX}', '{HSA_INCLUDE}',
                libomptarget.format(src) + '/hostrpc/services/CMakeLists.txt')

            filter_file(
                'CONFIG',
                'CONFIG PATHS ${CMAKE_INSTALL_PREFIX} NO_DEFAULT_PATH',
                libomptarget.format(src) + '/../libompd/test/CMakeLists.txt')

        if self.spec.version != Version('3.5.0'):
            filter_file(
                '{ROCM_DIR}/aomp/amdgcn/bitcode', '{DEVICE_LIBS_DIR}',
                libomptarget.format(src) + '/hostrpc/CMakeLists.txt',
                libomptarget.format(src) + '/deviceRTLs/amdgcn/CMakeLists.txt')

        if self.spec.version == Version('3.5.0'):
            filter_file(
                '{ROCM_DIR}/lib/bitcode', '{DEVICE_LIBS_DIR}',
                libomptarget.format(src) +
                '/deviceRTLs/hostcall/CMakeLists.txt')

        filter_file(
            '{ROCM_DIR}/lib/bitcode', '{DEVICE_LIBS_DIR}',
            aomp_extras.format(src) + '/aompextras/CMakeLists.txt',
            aomp_extras.format(src) + '/libm/CMakeLists.txt',
            libomptarget.format(src) + '/deviceRTLs/amdgcn/CMakeLists.txt',
            string=True)

        filter_file(
            r'${ROCM_DIR}/hsa/include ${ROCM_DIR}/hsa/include/hsa',
            '${HSA_INCLUDE}/hsa/include ${HSA_INCLUDE}/hsa/include/hsa',
            libomptarget.format(src) + '/plugins/hsa/CMakeLists.txt',
            string=True)

        filter_file(
            '{ROCM_DIR}/hsa/lib', '{HSA_LIB}',
            libomptarget.format(src) + '/plugins/hsa/CMakeLists.txt')

        filter_file(
            r'{ROCM_DIR}/lib\)',
            '{HSAKMT_LIB})\nset(HSAKMT_LIB64 ${HSAKMT_LIB64})',
            libomptarget.format(src) + '/plugins/hsa/CMakeLists.txt')

        filter_file(
            r'-L${LIBOMPTARGET_DEP_LIBHSAKMT_LIBRARIES_DIRS}',
            '-L${LIBOMPTARGET_DEP_LIBHSAKMT_LIBRARIES_DIRS} -L${HSAKMT_LIB64}',
            libomptarget.format(src) + '/plugins/hsa/CMakeLists.txt',
            string=True)

        filter_file(
            r'-rpath,${LIBOMPTARGET_DEP_LIBHSAKMT_LIBRARIES_DIRS}',
            '-rpath,${LIBOMPTARGET_DEP_LIBHSAKMT_LIBRARIES_DIRS}' +
            ',-rpath,${HSAKMT_LIB64}',
            libomptarget.format(src) + '/plugins/hsa/CMakeLists.txt',
            string=True)

        filter_file(
            '{ROCM_DIR}/include', '{COMGR_INCLUDE}',
            libomptarget.format(src) + '/plugins/hsa/CMakeLists.txt')

        filter_file(
            '{ROCM_DIR}/include', '{COMGR_INCLUDE}',
            libomptarget.format(src) + '/plugins/hsa/CMakeLists.txt')

        filter_file(
            r'-L${LLVM_LIBDIR}${OPENMP_LIBDIR_SUFFIX}',
            '-L${LLVM_LIBDIR}${OPENMP_LIBDIR_SUFFIX} -L${COMGR_LIB}',
            libomptarget.format(src) + '/plugins/hsa/CMakeLists.txt',
            string=True)

        filter_file(
            r'rpath,${LLVM_LIBDIR}${OPENMP_LIBDIR_SUFFIX}',
            'rpath,${LLVM_LIBDIR}${OPENMP_LIBDIR_SUFFIX}' +
            '-Wl,-rpath,${COMGR_LIB}',
            libomptarget.format(src) + '/plugins/hsa/CMakeLists.txt',
            string=True)

    def setup_run_environment(self, env):
        devlibs_prefix = self.spec['rocm-device-libs'].prefix
        aomp_prefix = self.spec['aomp'].prefix
        env.set('HIP_DEVICE_LIB_PATH',
                '{0}/amdgcn/bitcode'.format(format(devlibs_prefix)))
        env.set('AOMP', '{0}'.format(format(aomp_prefix)))

    def setup_build_environment(self, env):
        aomp_prefix = self.spec['aomp'].prefix
        env.set('AOMP', '{0}'.format(format(aomp_prefix)))
        env.set('FC', '{0}/bin/flang'.format(format(aomp_prefix)))
        env.set(
            'GFXLIST',
            'gfx700 gfx701 gfx801 gfx803 gfx900 gfx902 gfx906 gfx908')

    def install(self, spec, prefix):
        src = self.stage.source_path
        gfx_list = "gfx700;gfx701;gfx801;gfx803;gfx900;gfx902;gfx906;gfx908"
        aomp_prefix = self.spec['aomp'].prefix
        devlibs_prefix = self.spec['rocm-device-libs'].prefix
        hsa_prefix = self.spec['hsa-rocr-dev'].prefix
        hsakmt_prefix = self.spec['hsakmt-roct'].prefix
        comgr_prefix = self.spec['comgr'].prefix
        opencl_src = '/aomp-dir/opencl-on-vdi/api/opencl'
        omp_src = '/aomp-dir/amd-llvm-project/openmp'
        debug_map_format = \
            '-fdebug-prefix-map={0}{1}={2}'.format(src, omp_src, aomp_prefix)

        if self.spec.version >= Version('3.9.0'):
            bitcode_dir = '/amdgcn/bitcode'
        else:
            bitcode_dir = '/lib'

        components = dict()
        components['amd-llvm-project'] = [
            '../aomp-dir/amd-llvm-project/llvm',
            '-DLLVM_ENABLE_PROJECTS=clang;lld;compiler-rt',
            '-DCMAKE_BUILD_TYPE=release',
            '-DLLVM_ENABLE_ASSERTIONS=ON',
            '-DLLVM_TARGETS_TO_BUILD=AMDGPU;X86',
            '-DCMAKE_C_COMPILER={0}'.format(self.compiler.cc),
            '-DCMAKE_CXX_COMPILER={0}'.format(self.compiler.cxx),
            '-DCMAKE_ASM_COMPILER={0}'.format(self.compiler.cc),
            '-DBUG_REPORT_URL=https://github.com/ROCm-Developer-Tools/aomp',
            '-DLLVM_ENABLE_BINDINGS=OFF',
            '-DLLVM_INCLUDE_BENCHMARKS=OFF',
            '-DLLVM_BUILD_TESTS=OFF',
            '-DLLVM_INCLUDE_TESTS=OFF',
            '-DCLANG_INCLUDE_TESTS=OFF',
            '-DCMAKE_VERBOSE_MAKEFILE=1',
            '-DCMAKE_INSTALL_RPATH_USE_LINK_PATH=FALSE'
        ]

        if self.spec.version == Version('3.5.0'):
            components['vdi'] = [
                '../aomp-dir/vdi',
                '-DUSE_COMGR_LIBRARY=yes',
                '-DOPENCL_DIR={0}{1}'.format(src, opencl_src)
            ]

            components['hip-on-vdi'] = [
                '../aomp-dir/hip-on-vdi',
                '-DVDI_ROOT={0}/aomp-dir/vdi'.format(src),
                '-DHIP_COMPILER=clang',
                '-DHIP_PLATFORM=vdi',
                '-DVDI_DIR={0}/aomp-dir/vdi'.format(src),
                '-DHSA_PATH={0}'.format(hsa_prefix),
                '-DLIBVDI_STATIC_DIR={0}/spack-build-vdi'.format(src),
                '-DCMAKE_CXX_FLAGS=-Wno-ignored-attributes'
            ]

        components['aomp-extras'] = [
            '../aomp-dir/aomp-extras',
            '-DROCM_PATH=$ROCM_DIR ',
            '-DDEVICE_LIBS_DIR={0}{1}'.format(devlibs_prefix, bitcode_dir),
            '-DAOMP_STANDALONE_BUILD=0',
            '-DDEVICELIBS_ROOT={0}/aomp-dir/rocm-device-libs'.format(src),
            '-DCMAKE_VERBOSE_MAKEFILE=1'
        ]

        openmp_common_args = [
            '-DROCM_DIR={0}'.format(hsa_prefix),
            '-DDEVICE_LIBS_DIR={0}{1}'.format(devlibs_prefix, bitcode_dir),
            '-DAOMP_STANDALONE_BUILD=0',
            '-DDEVICELIBS_ROOT={0}/aomp-dir/rocm-device-libs'.format(src),
            '-DOPENMP_TEST_C_COMPILER={0}/bin/clang'.format(aomp_prefix),
            '-DOPENMP_TEST_CXX_COMPILER={0}/bin/clang++'.format(aomp_prefix),
            '-DLIBOMPTARGET_AMDGCN_GFXLIST={0}'.format(gfx_list),
            '-DLIBOMP_COPY_EXPORTS=OFF',
            '-DHSA_INCLUDE={0}'.format(hsa_prefix),
            '-DHSA_LIB={0}/lib'.format(hsa_prefix),
            '-DHSAKMT_LIB={0}/lib'.format(hsakmt_prefix),
            '-DHSAKMT_LIB64={0}/lib64'.format(hsakmt_prefix),
            '-DCOMGR_INCLUDE={0}/include'.format(comgr_prefix),
            '-DCOMGR_LIB={0}/lib'.format(comgr_prefix),
            '-DOPENMP_ENABLE_LIBOMPTARGET=1',
            '-DOPENMP_ENABLE_LIBOMPTARGET_HSA=1'
        ]

        components['openmp'] = ['../aomp-dir/amd-llvm-project/openmp']
        components['openmp'] += openmp_common_args

        components['openmp-debug'] = [
            '../aomp-dir/amd-llvm-project/openmp',
            '-DLIBOMPTARGET_NVPTX_DEBUG=ON',
            '-DOPENMP_ENABLE_LIBOMPTARGET=1',
            '-DOPENMP_ENABLE_LIBOMPTARGET_HSA=1'
            '-DCMAKE_CXX_FLAGS=-g',
            '-DCMAKE_C_FLAGS=-g'
        ]

        if self.spec.version >= Version('3.9.0'):
            components['openmp-debug'] += [
                '-DENABLE_SOURCE_COPY=ON',
                '-DOPENMP_SOURCE_DEBUG_MAP={0}'.format(debug_map_format)
            ]

        if self.spec.version >= Version('3.8.0'):
            components['openmp-debug'] += [
                '-DLIBOMP_ARCH=x86_64',
                '-DLIBOMP_OMP_VERSION=50',
                '-DLIBOMP_OMPT_SUPPORT=ON',
                '-DLIBOMP_USE_DEBUGGER=ON',
                '-DLIBOMP_CFLAGS=-O0',
                '-DLIBOMP_CPPFLAGS=-O0',
                '-DLIBOMP_OMPD_ENABLED=ON',
                '-DLIBOMP_OMPD_SUPPORT=ON',
                '-DLIBOMP_OMPT_DEBUG=ON'
            ]

        components['openmp-debug'] += openmp_common_args

        flang_common_args = [
            '-DLLVM_ENABLE_ASSERTIONS=ON',
            '-DLLVM_CONFIG={0}/bin/llvm-config'.format(aomp_prefix),
            '-DCMAKE_CXX_COMPILER={0}/bin/clang++'.format(aomp_prefix),
            '-DCMAKE_C_COMPILER={0}/bin/clang'.format(aomp_prefix),
            '-DCMAKE_Fortran_COMPILER={0}/bin/flang'.format(aomp_prefix),
            '-DLLVM_TARGETS_TO_BUILD=AMDGPU;x86'
        ]

        components['pgmath'] = ['../aomp-dir/flang/runtime/libpgmath']
        components['pgmath'] += flang_common_args

        components['flang'] = [
            '../aomp-dir/flang',
            '-DFLANG_OPENMP_GPU_AMD=ON',
            '-DFLANG_OPENMP_GPU_NVIDIA=ON'
        ]

        components['flang'] += flang_common_args

        components['flang-runtime'] = [
            '../aomp-dir/flang',
            '-DLLVM_INSTALL_RUNTIME=ON',
            '-DFLANG_BUILD_RUNTIME=ON',
            '-DOPENMP_BUILD_DIR={0}/spack-build-openmp/runtime/src'.format(src)
        ]

        components['flang-runtime'] += flang_common_args

        if self.spec.version != Version('3.5.0'):
            build_order = [
                "amd-llvm-project", "aomp-extras",
                "openmp", "openmp-debug", "pgmath", "flang", "flang-runtime"
            ]
        elif self.spec.version == Version('3.5.0'):
            build_order = [
                "amd-llvm-project", "vdi", "hip-on-vdi", "aomp-extras",
                "openmp", "openmp-debug", "pgmath", "flang", "flang-runtime"
            ]

        # Override standard CMAKE_BUILD_TYPE
        for arg in std_cmake_args:
            found = re.search("CMAKE_BUILD_TYPE", arg)
            if found:
                std_cmake_args.remove(arg)

        for component in build_order:
            with working_dir('spack-build-{0}'.format(component), create=True):
                cmake_args = components[component]
                cmake_args.extend(std_cmake_args)
                # OpenMP build needs to be run twice(Release, Debug)
                if component == "openmp-debug":
                    cmake_args.append("-DCMAKE_BUILD_TYPE=Debug")
                else:
                    cmake_args.append("-DCMAKE_BUILD_TYPE=Release")
                cmake(*cmake_args)
                make()
                make("install")