/usr/bin/ is in llvm-3.5 1:3.5.2-3ubuntu1.
This file is owned by root:root, with mode 0o755.
..
/usr/bin/llvm-config-3.5
/usr/bin/llvm-as-3.5
/usr/bin/llvm-diff-3.5
/usr/bin/llvm-profdata-3.5
/usr/bin/llvm-nm-3.5
/usr/bin/bugpoint-3.5
/usr/bin/macho-dump-3.5
/usr/bin/llvm-ranlib-3.5
/usr/bin/llvm-extract-3.5
/usr/bin/llvm-symbolizer-3.5
/usr/bin/llvm-bcanalyzer-3.5
/usr/bin/llvm-size-3.5
/usr/bin/llvm-rtdyld-3.5
/usr/bin/llvm-stress-3.5
/usr/bin/llc-3.5
/usr/bin/llvm-link-3.5
/usr/bin/llvm-tblgen-3.5
/usr/bin/llvm-readobj-3.5
/usr/bin/llvm-mcmarkup-3.5
/usr/bin/llvm-objdump-3.5
/usr/bin/llvm-ar-3.5
/usr/bin/llvm-dwarfdump-3.5
/usr/bin/opt-3.5
/usr/bin/llvm-cov-3.5
/usr/bin/llvm-dis-3.5
/usr/bin/llvm-mc-3.5