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# Copyright 2013-2020 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)
from spack import *
class LlvmFlang(CMakePackage, CudaPackage):
"""LLVM-Flang is the Flang fork of LLVM needed by the Flang package."""
homepage = "https://github.com/flang-compiler"
git = "https://github.com/flang-compiler/llvm.git"
maintainer = ['naromero77']
version('master', branch='master')
version('release_70', branch='release_70')
version('release_60', branch='release_60')
version('20190329', tag='flang_20190329')
version('20181226_70', tag='20181226_70')
version('20181226_60', tag='20181226_60')
version('20180921', tag='20180921')
version('20180319', tag='20180319')
version('20180328', tag='20180308')
# Variants
variant('all_targets', default=False,
description='Build all supported targets')
variant('build_type', default='Release',
description='The CMake build type to build',
values=('Debug', 'Release', 'RelWithDebInfo', 'MinSizeRel'))
# Universal dependency
depends_on('cmake@3.8:', type='build')
depends_on('python@2.7:', type='build')
# openmp dependencies
depends_on('perl-data-dumper', type=('build'))
depends_on('hwloc')
# libomptarget dependencies
depends_on('libelf', when='+cuda')
depends_on('libffi', when='+cuda')
depends_on('cuda@:9', when='+cuda') # llvm 7 not compatible with newer version of cuda
# LLVM-Flang Componentes: Driver, OpenMP
resource(name='flang-driver',
git='https://github.com/flang-compiler/flang-driver.git',
branch='master',
destination='tools',
placement='clang',
when='@master')
resource(name='flang-driver',
git='https://github.com/flang-compiler/flang-driver.git',
branch='release_70',
destination='tools',
placement='clang',
when='@release_70')
resource(name='flang-driver',
git='https://github.com/flang-compiler/flang-driver.git',
branch='release_60',
destination='tools',
placement='clang',
when='@release_60')
resource(name='flang-driver',
git='https://github.com/flang-compiler/flang-driver.git',
tag='flang_20190329',
destination='tools',
placement='clang',
when='@20190329')
resource(name='flang-driver',
git='https://github.com/flang-compiler/flang-driver.git',
tag='flang_20181226_70',
destination='tools',
placement='clang',
when='@20181226_70')
resource(name='flang-driver',
git='https://github.com/flang-compiler/flang-driver.git',
tag='flang_20181226_60',
destination='tools',
placement='clang',
when='@20181226_60')
resource(name='flang-driver',
git='https://github.com/flang-compiler/flang-driver.git',
tag='flang_20180921',
destination='tools',
placement='clang',
when='@20180921')
resource(name='flang-driver',
git='https://github.com/flang-compiler/flang-driver.git',
tag='flang_20180921',
destination='tools',
placement='clang',
when='@20180308')
resource(name='openmp',
git='https://github.com/flang-compiler/openmp.git',
branch='master',
destination='projects',
placement='openmp',
when='@master')
resource(name='openmp',
git='https://github.com/flang-compiler/openmp.git',
branch='release_70',
destination='projects',
placement='openmp',
when='@release_70')
resource(name='openmp',
git='https://github.com/flang-compiler/openmp.git',
branch='release_60',
destination='projects',
placement='openmp',
when='@release_60')
resource(name='openmp',
git='https://github.com/flang-compiler/openmp.git',
tag='flang_20190329',
destination='projects',
placement='openmp',
when='@20190329')
resource(name='openmp',
git='https://github.com/flang-compiler/openmp.git',
tag='flang_20181226_70',
destination='projects',
placement='openmp',
when='@20181226_70')
resource(name='openmp',
git='https://github.com/flang-compiler/openmp.git',
tag='flang_20181226_60',
destination='projects',
placement='openmp',
when='@20181226_60')
resource(name='openmp',
git='https://github.com/flang-compiler/openmp.git',
tag='flang_20180921',
destination='projects',
placement='openmp',
when='@20180921')
def cmake_args(self):
spec = self.spec
# universal
args = [
'-DLLVM_ENABLE_RTTI:BOOL=ON',
'-DLLVM_ENABLE_EH:BOOL=ON',
'-DCLANG_DEFAULT_OPENMP_RUNTIME:STRING=libomp',
]
args.append('-DPYTHON_EXECUTABLE={0}'.format(
spec['python'].command.path))
# needed by flang-driver
args.append('-DFLANG_LLVM_EXTENSIONS=ON')
if '+all_targets' not in spec: # all is default in cmake
if spec.target.family == 'x86' or spec.target.family == 'x86_64':
target = 'X86'
elif spec.target.family == 'arm':
target = 'ARM'
elif spec.target.family == 'aarch64':
target = 'AArch64'
elif (spec.target.family == 'ppc64' or
spec.target.family == 'ppc64le' or
spec.target.family == 'ppc' or
spec.target.family == 'ppcle'):
target = 'PowerPC'
else:
raise InstallError(
'Unsupported architecture: ' + spec.target.family)
if '+cuda' in spec:
args.append(
'-DLLVM_TARGETS_TO_BUILD:STRING=NVPTX;' + target)
else:
args.append(
'-DLLVM_TARGETS_TO_BUILD:STRING=' + target)
# used by openmp
args.append('-DLIBOMP_USE_HWLOC=On')
args.append('-DLIBOMP_FORTRAN_MODULES=ON')
args.append('-DLIBOMP_ENABLE_SHARED=TRUE')
# used by libomptarget for NVidia gpu
if '+cuda' in spec:
args.append('-DOPENMP_ENABLE_LIBOMPTARGET=ON')
cuda_arch_list = spec.variants['cuda_arch'].value
args.append('-DCUDA_TOOLKIT_ROOT_DIR=%s' % spec['cuda'].prefix)
args.append('-DLIBOMPTARGET_NVPTX_COMPUTE_CAPABILITIES={0}'.format(
','.join(cuda_arch_list)))
args.append('-DCLANG_OPENMP_NVPTX_DEFAULT_ARCH=sm_{0}'.format(
cuda_arch_list[-1]))
else:
args.append('-DOPENMP_ENABLE_LIBOMPTARGET=OFF')
return args
@run_after("install")
def post_install(self):
spec = self.spec
# Manual bootstrap needed to get NVidia BC compiled with the
# clang that was just built
if '+cuda' in spec:
ompdir = 'build-bootstrapped-omp'
# rebuild libomptarget to get bytecode runtime library files
with working_dir(ompdir, create=True):
args = [
self.stage.source_path + '/projects/openmp',
'-DCMAKE_C_COMPILER:PATH={0}'.format(
spec.prefix.bin + '/clang'),
'-DCMAKE_CXX_COMPILER:PATH={0}'.format(
spec.prefix.bin + '/clang++'),
'-DCMAKE_INSTALL_PREFIX:PATH={0}'.format(
spec.prefix)
]
args = args + self.cmake_args()
# args = self.cmake_args()
# enable CUDA bitcode
args.append('-DLIBOMPTARGET_NVPTX_ENABLE_BCLIB=true')
# work around bad libelf detection in libomptarget
args.append(
'-DCMAKE_CXX_FLAGS:String=-I{0} -I{1}'.format(
spec['libelf'].prefix.include,
spec['hwloc'].prefix.include))
cmake(*args)
make()
make('install')
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