On Wed, 19 Sep 2012, Eric Botcazou wrote: > > 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.
Which means that -O0 should also set optimize_debug to 1? -O0 is then !optimize && optimize_debug and -Og is optimize == 1 && optimize_debug. Richard.
