LLVM Clang 3.4 Already Has Some Performance Changes

With just being a few weeks into LLVM 3.4 development, there aren’t any breakthrough performance changes with the Clang C/C++ compiler front-end for most tests.

The performance changes in LLVM/Clang 3.4 SVN also aren't necessarily positive either, yet, but with BLAKE2 for instance it appears there might be a slight regression in the current 3.4 code. LLVM Clang for this cryptography test also has a ways to catch up to the GCC performance.

The SciMark2 composite test is the first test profile run where we see a nice LLVM/Clang 3.4 performance improvement. LLVM/Clang 3.4 SVN is already 9% faster over this month's stable 3.3 release for the Intel Core i7 4770K system and its performance is now put well ahead of GCC.