/usr/bin/ is in llvm-3.6 1:3.6.2-3ubuntu2.
This file is owned by root:root, with mode 0o755.
..
/usr/bin/llvm-tblgen-3.6
/usr/bin/llvm-readobj-3.6
/usr/bin/llvm-dis-3.6
/usr/bin/llvm-cov-3.6
/usr/bin/verify-uselistorder-3.6
/usr/bin/llvm-dsymutil-3.6
/usr/bin/llvm-mc-3.6
/usr/bin/llvm-size-3.6
/usr/bin/llvm-objdump-3.6
/usr/bin/llvm-link-3.6
/usr/bin/llvm-ar-3.6
/usr/bin/llvm-diff-3.6
/usr/bin/llvm-mcmarkup-3.6
/usr/bin/llvm-as-3.6
/usr/bin/llvm-rtdyld-3.6
/usr/bin/macho-dump-3.6
/usr/bin/llvm-dwarfdump-3.6
/usr/bin/llvm-config-3.6
/usr/bin/llvm-symbolizer-3.6
/usr/bin/llc-3.6
/usr/bin/opt-3.6
/usr/bin/obj2yaml-3.6
/usr/bin/llvm-nm-3.6
/usr/bin/llvm-extract-3.6
/usr/bin/llvm-stress-3.6
/usr/bin/llvm-bcanalyzer-3.6
/usr/bin/bugpoint-3.6
/usr/bin/llvm-vtabledump-3.6
/usr/bin/llvm-ranlib-3.6
/usr/bin/yaml2obj-3.6
/usr/bin/llvm-profdata-3.6