LLVM Clang 3.4 Compiler Performance Is Doing Good

With the scientific HMMer test we didn't see any performance improvements out of the LLVM Clang 3.4 compiler but with BLAKE2 cryptography test we immediately see a nice jump in performance on this Intel Ivy Bridge Extreme Linux system.

Aside from the KASUMI performance in the Botan crypto library regressing, the Botan performance under LLVM Clang 3.4 SVN was largely the same or slightly faster than the current 3.3 stable release.

The C-based SciMark2 benchmark with its composite test is nearly 30% faster when using the near-stable LLVM Clang 3.4 compiler.