GCC vs. Clang Compiler Benchmarking On Intel's Skylake CPU

With the x264 video encoding test, the performance was very close between compilers, but then again, most of the hot paths there are optimized in Assembly.

Clang came up short of GCC with the Himeno benchmark.

GCC is faster than Clang on the Core i5 6600K Intel Linux system for the C-Ray multi-threaded ray-tracer.

With OpenMP working in Clang for this test, Clang runs at the same speed as GCC for this simple highly parallel test.