下载源码：

git clone https://github.com/llvm/llvm-project.git
cd llvm-project

启动容器：

docker run -itd --name=llvm --net=host -v`pwd`:/data0 -w /data0 ubuntu:18.04 bash

进入容器：

docker exec -it llvm bash

编译LLVM：

apt-get update
apt-get install -y git vim build-essential gcc-6 g++-6 cmake swig python-swiglpk libxml2 libxml2-dev libncurses5 libncurses5-dev libedit-dev libpython-dev
cd llvm-project
mkdir llvm-build
cd llvm-build
cmake -G "Unix Makefiles" -DCMAKE_INSTALL_PREFIX=/usr/local/clang -DCMAKE_BUILD_TYPE=Debug ../llvm/
make
make install

编译clang（必须先编译LLVM）：

cd llvm-project/clang
mkdir clang-build
cd clang-build
cmake -G "Unix Makefiles" -DCMAKE_INSTALL_PREFIX=/usr/local/clang -DCMAKE_BUILD_TYPE=Debug ../clang/
make 
make install

original refer