LLVM Clang 3.4 Already Has Some Performance Changes

It appears Himeno is slightly slower with LLVM Clang 3.4 at the moment.

LLVM Clang continues easily beating GCC when it comes to quicker compile times.

C-Ray might end up being faster on LLVM Clang 3.4 as it still seeks to compete with the GCC-produced binaries.

FLAC audio encoding ended up being much faster with the LLVM Clang development code.

It's still too early to call how LLVM Clang 3.4 final will perform, since the official release is still several months out. The test results today from the Core i7 4770K Linux system sporting the core-avx2 optimizations showed that for multiple tests there were measurable performance improvements, but at the same time with this latest development code there were also multiple losses. Stay tuned for more LLVM Clang 3.4 testing in the coming weeks and months. We'll also keep monitoring this innovative compiler infrastructure for new features on the horizon for version 3.4.