cmake -G Ninja ../llvm/llvm "-DLLVM_ENABLE_PROJECTS=clang;lld" -DCMAKE_BUILD_TYPE=Release -DLLVM_ENABLE_ASSERTIONS=True -DCMAKE_INSTALL_PREFIX=../llvm-install "-DLLVM_TARGETS_TO_BUILD=ARM;X86" -DCLANG_DEFAULT_LINKER=lld