On Dec 24, 2017, at 04:36, Chris Jones wrote: > In general its not possible to say one setting will always perform better > than another, its very use case dependant. For instance if you really want > maximum numerical performance then -O3 can give significant gains, as it > turns on a number of optimisations that can really help, like auto > vectorisation. But, you would not want that as the default as some use cases > might not like it. Its fine to have a default, but i would suggest each port > should use whatever upstream has decided is its best optimisation level.
Ports are free to override configure.optflags if desired.
