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op-ti-mize [verb (trans.)]* … (gcc) to modify executable code so that it fails more quickly.
Gentoo users in shambles
Jokes on you, my system is (mostly) -O3
too fancy for -O2? lol
Yes
Not like Ubuntu works very well on old hardware but hopefully O2 support will still be there. Many people need it.
-O2 vs -O3 adds
-fgcse-after-reload -fipa-cp-clone -floop-interchange -floop-unroll-and-jam -fpeel-loops -fpredictive-commoning -fsplit-loops -fsplit-paths -ftree-loop-distribution -ftree-partial-pre -funswitch-loops -fvect-cost-model=dynamic -fversion-loops-for-stridesI don’t think any of these optimizations require more modern hardware?
