> This adds -Og as optimization level targeted at the devel-compile-debug > cycle (formerly mostly tied to -O0 due to debug issues with even -O1). > > Discussion on g...@gcc.gnu.org at least shows interest in this, so this > is a formal patch submission with a request for comments on the > implementation (not necessarily on what passes are enabled and why).
There are a fair number of places in the compiler where things are done to help debugging (as opposed to not done like optimizations) if !optimize. I guess we want to enable (some of) them with -Og, in which case it would probably be convenient to have a shortcut for !optimize || optimize_debug. -- Eric Botcazou
