AOCC 3.1 Compiler Performance Against Clang 12, GCC 11 On AMD EPYC
Clang in general has matured very nicely the past few years to be effectively at performance parity with GCC overall on x86_64 and especially AArch64.
AOCC has also matured in its own right as well since originally being introduced with EPYC as an LLVM/Clang downstream and much better than the days of the AMD Open64 compiler option pre-Zen.