Optimizer improvements are generally added to major version releases. For example if you look at the 8.1 release it has a number of optimization improvements [0

Optimizer improvements are generally added to major version releases. For example if you look at the 8.1 release it has a number of optimization improvements [0]. Not sure how much focus that is receiving right now though. [0] https://gcc.gnu.org/gcc-8/changes.html https://gcc.gnu.org/gcc-8/changes.html