cc - Clang: -O2 -march=native

Return To Clang: -O2 -march=native System Information

clang version 3.8.0-+rc2-1~exp1ubuntu2 (tags/RELEASE_380/rc2)
Target: x86_64-pc-linux-gnu
Thread model: posix
InstalledDir: /home/phoronix/comp/.
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/5.3.1
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/6.0.0
Selected GCC installation: /usr/lib/gcc/x86_64-linux-gnu/5.3.1
Candidate multilib: .;@m64
Candidate multilib: 32;@m32
Candidate multilib: x32;@mx32
Selected multilib: .;@m64