A tool to generate human-readable reports based on data from various sources with the focus on its implementation using a series of programming languages.
-X -O3 – Optimize yet more. -O3 turns on all optimizations specified by -O2 and also turns on the -finline-functions, -funswitch-loops, -fpredictive-commoning, -fgcse-after-reload, -ftree-loop-vectorize, -ftree-loop-distribute-patterns, -fsplit-paths -ftree-slp-vectorize, -fvect-cost-model, -ftree-partial-pre, -fpeel-loops and -fipa-cp-clone options.
(See: https://gcc.gnu.org/onlinedocs/gcc/Optimize-Options.html )