1. 源码下载
http://llvm.org/svn/llvm-project/
http://releases.llvm.org/download.html


2. 源码解压与合并
    a)llvm-8.0.0.src.tar.xz                     --->        llvm-8.0.0
    b)cfe-8.0.0.src.tar.xz                      --->        llvm-8.0.0/tools/clang
    c)clang-tools-extra-8.0.0.src.tar.xz        --->        llvm-8.0.0/tools/clang/tools/extra
    d)lld-8.0.0.src.tar.xz                      --->        llvm-8.0.0/tools/lld
    e)lldb-8.0.0.src.tar.xz                     --->        llvm-8.0.0/tools/lldb
    f)compiler-rt-8.0.0.src.tar.xz              --->        llvm-8.0.0/projects/compiler-rt

    *)llvm-8.0.0为解压合并后的源码文件夹，示例完整路径:/work/tool/llvm/source/80/llvm-8.0.0


3. CMake设置与编译安装
    mkdir build
    cd build
    cmake "/work/tool/llvm/source/80/llvm-8.0.0" -DCMAKE_INSTALL_PREFIX="/work/tool/llvm/80" -DCMAKE_BUILD_TYPE="Release" -DLLVM_ENABLE_ASSERTIONS=ON
    cmake "/work/tool/llvm/source/80/llvm-8.0.0" -DCMAKE_INSTALL_PREFIX="/work/tool/llvm/80" -DLLVM_TARGETS_TO_BUILD="X86" -DCMAKE_BUILD_TYPE="Release" -DLLVM_ENABLE_ASSERTIONS=ON
    make -j12
    make install


4. 测试验证生成结果
    clang -v


5. 依赖预安装
sudo apt clean
sudo apt update
sudo apt install console-setup plymouth-themes -y --fix-missing
sudo apt full-upgrade -y --fix-missing
sudo apt install build-essential gdb nasm -y --fix-missing
sudo apt install m4 autoconf automake libtool cmake -y --fix-missing
sudo apt install git subversion -y --fix-missing
git config --global user.name "lws"
git config --global user.email "chenkun_lws@126.com"
sudo apt install ocaml swig libedit-dev libeditline-dev python-dev python-yaml python-pygments texinfo graphviz -y --fix-missing
sudo apt install doxygen doxygen-latex -y --fix-missing
源码安装zlib(configure, make, sudo make install)
源码安装Z3
python scripts/mk_make.py
cd build
make -j12
sudo make install


make[2]: 警告:文件“/usr/include/libxml2/libxml/SAX.h”的修改时间在未来 1466