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##############################################################################
# Copyright (c) 2013-2018, Lawrence Livermore National Security, LLC.
# Produced at the Lawrence Livermore National Laboratory.
#
# This file is part of Spack.
# Created by Todd Gamblin, tgamblin@llnl.gov, All rights reserved.
# LLNL-CODE-647188
#
# For details, see https://github.com/spack/spack
# Please also see the NOTICE and LICENSE files for our notice and the LGPL.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU Lesser General Public License (as
# published by the Free Software Foundation) version 2.1, February 1999.
#
# This program is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the IMPLIED WARRANTY OF
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the terms and
# conditions of the GNU Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public
# License along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
##############################################################################
import llnl.util.tty as tty
from spack.compiler import Compiler, get_compiler_version
from spack.version import ver
class Xl(Compiler):
# Subclasses use possible names of C compiler
cc_names = ['xlc']
# Subclasses use possible names of C++ compiler
cxx_names = ['xlC', 'xlc++']
# Subclasses use possible names of Fortran 77 compiler
f77_names = ['xlf']
# Subclasses use possible names of Fortran 90 compiler
fc_names = ['xlf90', 'xlf95', 'xlf2003', 'xlf2008']
# Named wrapper links within spack.build_env_path
link_paths = {'cc': 'xl/xlc',
'cxx': 'xl/xlc++',
'f77': 'xl/xlf',
'fc': 'xl/xlf90'}
@property
def openmp_flag(self):
return "-qsmp=omp"
@property
def cxx11_flag(self):
if self.version < ver('13.1'):
tty.die("Only xlC 13.1 and above have some c++11 support.")
else:
return "-qlanglvl=extended0x"
@property
def pic_flag(self):
return "-qpic"
@property
def fflags(self):
# The -qzerosize flag is effective only for the Fortran 77
# compilers and allows the use of zero size objects.
# For Fortran 90 and beyond, it is set by default and has not impact.
# Its use has no negative side effects.
return "-qzerosize"
@classmethod
def default_version(cls, comp):
"""The '-qversion' is the standard option fo XL compilers.
Output looks like this::
IBM XL C/C++ for Linux, V11.1 (5724-X14)
Version: 11.01.0000.0000
or::
IBM XL Fortran for Linux, V13.1 (5724-X16)
Version: 13.01.0000.0000
or::
IBM XL C/C++ for AIX, V11.1 (5724-X13)
Version: 11.01.0000.0009
or::
IBM XL C/C++ Advanced Edition for Blue Gene/P, V9.0
Version: 09.00.0000.0017
"""
return get_compiler_version(
comp, '-qversion', r'([0-9]?[0-9]\.[0-9])')
@classmethod
def fc_version(cls, fc):
"""The fortran and C/C++ versions of the XL compiler are always
two units apart. By this we mean that the fortran release that
goes with XL C/C++ 11.1 is 13.1. Having such a difference in
version number is confusing spack quite a lot. Most notably
if you keep the versions as is the default xl compiler will
only have fortran and no C/C++. So we associate the Fortran
compiler with the version associated to the C/C++ compiler.
One last stumble. Version numbers over 10 have at least a .1
those under 10 a .0. There is no xlf 9.x or under currently
available. BG/P and BG/L can such a compiler mix and possibly
older version of AIX and linux on power.
"""
fver = get_compiler_version(fc, '-qversion', r'([0-9]?[0-9]\.[0-9])')
if fver >= 16:
"""Starting with version 16.1, the XL C and Fortran compilers
have the same version. So no need to downgrade the Fortran
compiler version to match that of the C compiler version.
"""
return str(fver)
cver = float(fver) - 2
if cver < 10:
cver = cver - 0.1
return str(cver)
@classmethod
def f77_version(cls, f77):
return cls.fc_version(f77)
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