GCC vs. LLVM Clang vs. AOCC Compilers On AMD Threadripper
The fastest compiler for building out PHP was GCC 7.3.0 followed by GCC 8.1.0. Clang once dominated in compiler speed, but not so much anymore.
GCC also still leads when it came to the performance of the C-Ray ray-tracer.
AOBench also slightly favored GCC.
GCC 8.1.0 was largely leading with the Bullet Physics library benchmarks.