%if 0%{?_with_llvm9:1}
  %define build_branch release_90
%else
  %define build_branch master
%endif

%global build_repo https://github.com/llvm-mirror/llvm

%global maj_ver %(curl -s https://raw.githubusercontent.com/llvm-mirror/llvm/%{build_branch}/CMakeLists.txt | grep LLVM_VERSION_MAJOR | grep -oP '[0-9]+')
%global min_ver %(curl -s https://raw.githubusercontent.com/llvm-mirror/llvm/%{build_branch}/CMakeLists.txt | grep LLVM_VERSION_MINOR | grep -oP '[0-9]+')
%global patch_ver %(curl -s https://raw.githubusercontent.com/llvm-mirror/llvm/%{build_branch}/CMakeLists.txt | grep LLVM_VERSION_PATCH | grep -oP '[0-9]+')

%define commit %(git ls-remote %{build_repo} | grep -w "refs/heads/%{build_branch}" | awk '{print $1}')
%global shortcommit %(c=%{commit}; echo ${c:0:7})
%global commit_date %(date +"%Y%m%d")
%global gitrel .%{commit_date}.git%{shortcommit}
%global _default_patch_fuzz 2

# Components enabled if supported by target architecture:
%define gold_arches %{ix86} x86_64 %{arm} aarch64 %{power64} s390x
%ifarch %{gold_arches}
  %bcond_without gold
%else
  %bcond_with gold
%endif

%global compat_build 0

%global build_llvm_bindir %{buildroot}%{_bindir}
%global llvm_libdir %{_libdir}/%{name}
%global build_llvm_libdir %{buildroot}%{llvm_libdir}


%ifarch s390x
%global llvm_targets SystemZ;BPF
%endif
%ifarch ppc64 ppc64le
%global llvm_targets PowerPC;AMDGPU;BPF
%endif
%ifarch %ix86 x86_64
# ARM/AARCH64 enabled due to rhbz#1627500
%global llvm_targets X86;AMDGPU;NVPTX;BPF
%endif
%ifarch aarch64
%global llvm_targets AArch64;AMDGPU;BPF
%endif
%ifarch %{arm}
%global llvm_targets ARM;AMDGPU;BPF
%endif

%if 0%{?compat_build}
%global pkg_name llvm%{maj_ver}.%{min_ver}
%global exec_suffix -%{maj_ver}.%{min_ver}
%global install_prefix %{_libdir}/%{name}
%global install_bindir %{install_prefix}/bin
%global install_includedir %{install_prefix}/include
%global install_libdir %{install_prefix}/lib

%global pkg_bindir %{install_bindir}
%global pkg_includedir %{_includedir}/%{name}
%global pkg_libdir %{install_libdir}
%else
%global pkg_name llvm
%global install_prefix /usr
%global install_libdir %{_libdir}
%global pkg_libdir %{install_libdir}
%endif

%global build_install_prefix %{buildroot}%{install_prefix}
%global build_pkgdocdir %{buildroot}%{_pkgdocdir}

Name:		%{pkg_name}
Version:	%{maj_ver}.%{min_ver}.%{patch_ver}
Release:	0.1%{?gitrel}%{?dist}
Summary:	The Low Level Virtual Machine

License:	NCSA
URL:		https://github.com/llvm-mirror/
Source0:	%url/%{name}/archive/%{build_branch}.tar.gz#/%{name}-%{build_branch}.tar.gz
Source1:	run-lit-tests

Patch5:		0001-PATCH-llvm-config.patch
Patch7:		0001-PATCH-Filter-out-cxxflags-not-supported-by-clang.patch

BuildRequires:	gcc
BuildRequires:	gcc-c++
BuildRequires:	cmake
BuildRequires:	ninja-build
BuildRequires:	zlib-devel
BuildRequires:	libffi-devel
BuildRequires:	ncurses-devel
BuildRequires:	python3-sphinx
BuildRequires:	python3-recommonmark
BuildRequires:	multilib-rpm-config
%if %{with gold}
BuildRequires:	binutils-devel
%endif
BuildRequires:	libstdc++-static
%ifarch %{valgrind_arches}
# Enable extra functionality when run the LLVM JIT under valgrind.
BuildRequires:	valgrind-devel
%endif
# LLVM's LineEditor library will use libedit if it is available.
BuildRequires:	libedit-devel
# We need python3-devel for pathfix.py.
BuildRequires:	python3-devel

Requires:	%{name}-libs%{?_isa} = %{version}-%{release}

%description
LLVM is a compiler infrastructure designed for compile-time, link-time,
runtime, and idle-time optimization of programs from arbitrary programming
languages. The compiler infrastructure includes mirror sets of programming
tools as well as libraries with equivalent functionality.

%package devel
Summary:	Libraries and header files for LLVM
Requires:	%{name}%{?_isa} = %{version}-%{release}
# The installed LLVM cmake files will add -ledit to the linker flags for any
# app that requires the libLLVMLineEditor, so we need to make sure
# libedit-devel is available.
Requires:	libedit-devel
Requires(post):	%{_sbindir}/alternatives
Requires(postun):	%{_sbindir}/alternatives

%description devel
This package contains library and header files needed to develop new native
programs that use the LLVM infrastructure.

%package doc
Summary:	Documentation for LLVM
BuildArch:	noarch
Requires:	%{name} = %{version}-%{release}

%description doc
Documentation for the LLVM compiler infrastructure.

%package libs
Summary:	LLVM shared libraries

%description libs
Shared libraries for the LLVM compiler infrastructure.

%package static
Summary:	LLVM static libraries

%description static
Static libraries for the LLVM compiler infrastructure.

%if !0%{?compat_build}

%package test
Summary:	LLVM regression tests
Requires:	%{name}%{?_isa} = %{version}-%{release}
Requires:	python3-lit
# The regression tests need gold.
Requires:	binutils
# This is for llvm-config
Requires:	%{name}-devel%{?_isa} = %{version}-%{release}
# Bugpoint tests require gcc
Requires:	gcc
Requires:	findutils

%description test
LLVM regression tests.

%package googletest
Summary: LLVM's modified googletest sources

%description googletest
LLVM's modified googletest sources.

%endif

%prep
%autosetup -n %{name}-%{build_branch} -p1

pathfix.py -i %{__python3} -pn \
	test/BugPoint/compile-custom.ll.py \
	tools/opt-viewer/*.py

sed -i 's~@TOOLS_DIR@~%{_bindir}~' %{SOURCE1}

%build
mkdir -p _build
cd _build

%ifarch s390 s390x %{arm} %ix86
# Decrease debuginfo verbosity to reduce memory consumption during final library linking
%global optflags %(echo %{optflags} | sed 's/-g /-g1 /')
%endif

# force off shared libs as cmake macros turns it on.
%cmake .. -G Ninja \
	-DBUILD_SHARED_LIBS:BOOL=OFF \
	-DLLVM_PARALLEL_LINK_JOBS=1 \
	-DCMAKE_BUILD_TYPE=RelWithDebInfo \
	-DCMAKE_SKIP_RPATH:BOOL=ON \
	-DCMAKE_INSTALL_RPATH:BOOL=OFF \
%ifarch s390 %{arm} %ix86
	-DCMAKE_C_FLAGS_RELWITHDEBINFO="%{optflags} -DNDEBUG" \
	-DCMAKE_CXX_FLAGS_RELWITHDEBINFO="%{optflags} -DNDEBUG" \
%endif
%if !0%{?compat_build}
%if 0%{?__isa_bits} == 64
	-DLLVM_LIBDIR_SUFFIX=64 \
%else
	-DLLVM_LIBDIR_SUFFIX= \
%endif
%endif
	\
	-DLLVM_TARGETS_TO_BUILD="%{llvm_targets}" \
	-DLLVM_ENABLE_LIBCXX:BOOL=OFF \
	-DLLVM_ENABLE_ZLIB:BOOL=ON \
	-DLLVM_ENABLE_FFI:BOOL=ON \
	-DLLVM_ENABLE_RTTI:BOOL=ON \
%if %{with gold}
	-DLLVM_BINUTILS_INCDIR=%{_includedir} \
%endif
	\
	-DLLVM_BUILD_RUNTIME:BOOL=ON \
	\
	-DLLVM_INCLUDE_TOOLS:BOOL=ON \
	-DLLVM_BUILD_TOOLS:BOOL=ON \
	\
	-DLLVM_INCLUDE_TESTS:BOOL=ON \
	-DLLVM_BUILD_TESTS:BOOL=ON \
	\
	-DLLVM_INCLUDE_EXAMPLES:BOOL=ON \
	-DLLVM_BUILD_EXAMPLES:BOOL=OFF \
	\
	-DLLVM_INCLUDE_UTILS:BOOL=ON \
%if 0%{?compat_build}
	-DLLVM_INSTALL_UTILS:BOOL=OFF \
%else
	-DLLVM_INSTALL_UTILS:BOOL=ON \
	-DLLVM_UTILS_INSTALL_DIR:PATH=%{build_llvm_bindir} \
	-DLLVM_TOOLS_INSTALL_DIR:PATH=bin \
%endif
	\
	-DLLVM_INCLUDE_DOCS:BOOL=ON \
	-DLLVM_BUILD_DOCS:BOOL=ON \
	-DLLVM_ENABLE_SPHINX:BOOL=ON \
	-DLLVM_ENABLE_DOXYGEN:BOOL=OFF \
	\
	-DLLVM_BUILD_LLVM_DYLIB:BOOL=ON \
	-DLLVM_DYLIB_EXPORT_ALL:BOOL=ON \
	-DLLVM_LINK_LLVM_DYLIB:BOOL=ON \
	-DLLVM_BUILD_EXTERNAL_COMPILER_RT:BOOL=ON \
	-DLLVM_INSTALL_TOOLCHAIN_ONLY:BOOL=OFF \
	\
	-DSPHINX_WARNINGS_AS_ERRORS=OFF \
	-DCMAKE_INSTALL_PREFIX=%{build_install_prefix} \
	-DLLVM_INSTALL_SPHINX_HTML_DIR=%{build_pkgdocdir}/html \
	-DSPHINX_EXECUTABLE=%{_bindir}/sphinx-build-3

ninja -vvv

%install
ninja -C _build -v install


%if !0%{?compat_build}
mkdir -p %{buildroot}/%{_bindir}
mv %{buildroot}/%{_bindir}/llvm-config %{buildroot}/%{_bindir}/llvm-config-%{__isa_bits}

# Fix some man pages
ln -s llvm-config.1 %{buildroot}%{_mandir}/man1/llvm-config-%{__isa_bits}.1
mv %{buildroot}%{_mandir}/man1/tblgen.1 %{buildroot}%{_mandir}/man1/llvm-tblgen.1

# Install binaries needed for lit tests
%global test_binaries FileCheck count lli-child-target llvm-PerfectShuffle llvm-isel-fuzzer llvm-opt-fuzzer not yaml-bench

for f in %{test_binaries}
do
    install -m 0755 ./_build/bin/$f %{build_llvm_bindir}
done


%multilib_fix_c_header --file %{_includedir}/llvm/Config/llvm-config.h

# Install libraries needed for unittests
%if 0%{?__isa_bits} == 64
%global build_libdir _build/lib64
%else
%global build_libdir _build/lib
%endif

install %{build_libdir}/libLLVMTestingSupport.a %{buildroot}%{_libdir}

%global install_srcdir %{buildroot}%{_datadir}/llvm/src
%global lit_cfg test/lit.site.cfg.py
%global lit_unit_cfg test/Unit/lit.site.cfg.py

# Install gtest sources so clang can use them for gtest
install -d %{install_srcdir}
install -d %{install_srcdir}/utils/
cp -R utils/unittest %{install_srcdir}/utils/

# Generate lit config files.
cat _build/test/lit.site.cfg.py >> %{lit_cfg}

# Unit tests write output to this directory, so it can't be in /usr.
sed -i 's~\(config.llvm_obj_root = \)"[^"]\+"~\1"."~' %{lit_cfg}

cat _build/test/Unit/lit.site.cfg.py >> %{lit_unit_cfg}
sed -i -e s~`pwd`/_build~%{_prefix}~g -e s~`pwd`~.~g %{lit_cfg} %{lit_cfg} %{lit_unit_cfg}

# obj_root needs to be set to the directory containing the unit test binaries.
sed -i 's~\(config.llvm_obj_root = \)"[^"]\+"~\1"%{_bindir}"~' %{lit_unit_cfg}

install -d %{buildroot}%{_libexecdir}/tests/llvm
install -m 0755 %{SOURCE1} %{buildroot}%{_libexecdir}/tests/llvm

# Install lit tests.  We need to put these in a tarball otherwise rpm will complain
# about some of the test inputs having the wrong object file format.
install -d %{buildroot}%{_datadir}/llvm/
tar -czf %{install_srcdir}/test.tar.gz test/

# Install the unit test binaries
mkdir -p %{build_llvm_libdir}
cp -R _build/unittests %{build_llvm_libdir}/
rm -rf `find %{build_llvm_libdir} -iname 'cmake*'`

# Workaround missing ${_IMPORT_PREFIX}
sed -i.bak 's|%{buildroot}%{_prefix}|${_IMPORT_PREFIX}|g' %{buildroot}%{_libdir}/cmake/%{name}/LLVMExports-relwithdebinfo.cmake

## Checking what we changed and then removing the backup file. Copr logs it then.
diff -u %{buildroot}%{_libdir}/cmake/%{name}/LLVMExports-relwithdebinfo.cmake.bak %{buildroot}%{_libdir}/cmake/%{name}/LLVMExports-relwithdebinfo.cmake || :
rm -f %{buildroot}%{_libdir}/cmake/%{name}/LLVMExports-relwithdebinfo.cmake.bak

%else

# Add version suffix to binaries
mkdir -p %{buildroot}/%{_bindir}
for binary in %{build_llvm_bindir}/*
do
  mv ${binary} ${binary}%{exec_suffix}
done

# Move header files
mkdir -p %{buildroot}/%{pkg_includedir}
ln -s ../../../%{install_includedir}/llvm %{buildroot}/%{pkg_includedir}/llvm
ln -s ../../../%{install_includedir}/llvm-c %{buildroot}/%{pkg_includedir}/llvm-c

# Fix multi-lib
%multilib_fix_c_header --file %{install_includedir}/llvm/Config/llvm-config.h

# Create ld.so.conf.d entry
mkdir -p %{buildroot}%{_sysconfdir}/ld.so.conf.d
cat >> %{buildroot}%{_sysconfdir}/ld.so.conf.d/%{name}-%{_arch}.conf << EOF
%{pkg_libdir}
EOF

# Add version suffix to man pages and move them to mandir.
mkdir -p %{buildroot}/%{_mandir}/man1
for f in `ls %{build_install_prefix}/share/man/man1/*`; do
  filename=`basename $f | cut -f 1 -d '.'`
  mv $f %{buildroot}%{_mandir}/man1/$filename%{exec_suffix}.1
done

# Remove opt-viewer, since this is just a compatibility package.
rm -Rf %{build_install_prefix}/share/opt-viewer

%endif


%check
#ninja check-all -C _build || :

%ldconfig_scriptlets libs

%if !0%{?compat_build}

%post devel
%{_sbindir}/update-alternatives --install %{_bindir}/llvm-config llvm-config %{_bindir}/llvm-config-%{__isa_bits} %{__isa_bits}

%postun devel
if [ $1 -eq 0 ]; then
  %{_sbindir}/update-alternatives --remove llvm-config %{_bindir}/llvm-config
fi

%endif

%files
%if !0%{?compat_build}
%exclude %{_bindir}/llvm-config-%{__isa_bits}
%exclude %{_bindir}/not
%exclude %{_bindir}/count
%exclude %{_bindir}/yaml-bench
%exclude %{_bindir}/lli-child-target
%exclude %{_bindir}/llvm-isel-fuzzer
%exclude %{_bindir}/llvm-opt-fuzzer
%{_bindir}/*

%exclude %{_mandir}/man1/llvm-config*
%{_mandir}/man1/*

%{_datadir}/opt-viewer
%else
%exclude %{pkg_bindir}/llvm-config
%{pkg_bindir}
%endif

%files libs
%{pkg_libdir}/libLLVM-%{maj_ver}*.so
%if !0%{?compat_build}
%if %{with gold}
%{_libdir}/LLVMgold.so
%endif
%{_libdir}/libLLVM-%{maj_ver}*.%{min_ver}*.so
%{_libdir}/libLTO.so*
%else
%config(noreplace) %{_sysconfdir}/ld.so.conf.d/%{name}-%{_arch}.conf
%if %{with gold}
%{_libdir}/%{name}/lib/LLVMgold.so
%endif
%{pkg_libdir}/libLLVM-%{maj_ver}*.%{min_ver}*.so
%{pkg_libdir}/libLTO.so*
%exclude %{pkg_libdir}/libLTO.so
%endif
%{pkg_libdir}/libRemarks.so*

%files devel
%if !0%{?compat_build}
%{_bindir}/llvm-config-%{__isa_bits}
%{_mandir}/man1/llvm-config*
%{_includedir}/llvm
%{_includedir}/llvm-c
%{_libdir}/libLLVM.so
%{_libdir}/cmake/llvm
%exclude %{_libdir}/cmake/llvm/LLVMStaticExports.cmake
%else
%{_bindir}/llvm-config%{exec_suffix}-%{__isa_bits}
%{pkg_bindir}/llvm-config
%{_mandir}/man1/llvm-config%{exec_suffix}.1.gz
%{install_includedir}/llvm
%{install_includedir}/llvm-c
%{pkg_includedir}/llvm
%{pkg_includedir}/llvm-c
%{pkg_libdir}/libLTO.so
%{pkg_libdir}/libLLVM.so
%{pkg_libdir}/cmake/llvm
%endif

%files doc
%doc %{_pkgdocdir}/html

%files static
%if !0%{?compat_build}
%{_libdir}/*.a
%exclude %{_libdir}/libLLVMTestingSupport.a
%{_libdir}/cmake/llvm/LLVMStaticExports.cmake
%else
%{_libdir}/%{name}/lib/*.a
%endif

%if !0%{?compat_build}

%files test
%{_libexecdir}/tests/llvm/
%{llvm_libdir}/unittests/
%{_datadir}/llvm/src/test.tar.gz
%{_bindir}/not
%{_bindir}/count
%{_bindir}/yaml-bench
%{_bindir}/lli-child-target
%{_bindir}/llvm-isel-fuzzer
%{_bindir}/llvm-opt-fuzzer

%files googletest
%{_datadir}/llvm/src/utils
%{_libdir}/libLLVMTestingSupport.a

%endif

%changelog
* Sun Jul 14 2019 Mihai Vultur <xanto@egaming.ro>
- Implement some version autodetection to reduce maintenance work.

* Thu Jun 02 2016 Rudolf Kastl <rkastl@redhat.com> 3.9.0-0.1.r
- using a random svn checkout of 3.9
- removed CppBackend
- updated files section