Installing LLVM

Procedure

1. Use PuTTY to log in to the server as the root user.
2. Download LLVM.

   wget http://releases.llvm.org/8.0.0/llvm-8.0.0.src.tar.xz

3. Decompress LLVM.

   tar xvf llvm-8.0.0.src.tar.xz

4. Go to the directory generated after the decompression.

   cd llvm-8.0.0.src/

5. Go to the llvm-8.0.0.src/tools directory and obtain the Clang source code.

   cd tools/
   wget http://releases.llvm.org/8.0.0/cfe-8.0.0.src.tar.xz

6. Decompress cfe-8.0.0.src.tar.xz and rename the directory.

   tar vxf cfe-8.0.0.src.tar.xz
   mv cfe-8.0.0.src clang

7. Go to the llvm-8.0.0.src/tools directory and obtain the compiler-rt source code.

   cd ../projects/
   wget http://releases.llvm.org/8.0.0/compiler-rt-8.0.0.src.tar.xz

8. Decompress compiler-rt-8.0.0.src.tar.xz and rename the directory.

   tar vxf compiler-rt-8.0.0.src.tar.xz
   mv compiler-rt-8.0.0.src compiler-rt

9. Return to the llvm-8.0.0.src directory and create a build directory.

   cd ..
   mkdir build

10. Go to the build directory.

    cd build/

11. Perform the compilation and installation.

    cmake -G "Unix Makefiles" -Wno-dev -DCMAKE_BUILD_TYPE=Release ../
    make -j32
    make install