Anything other than O2 or less is fraught with danger. Use with caution. Using -no-frame-pointer -Wall - blah blah is good.
-Girish On Mon, Sep 30, 2013 at 2:11 PM, km <[email protected]> wrote: > Dear All, > > I have seen this -O4 optimization being used in latest c/c++ soursecode but > find no documentation on the use of O4 over O3 level. > Can someone comment on this. Does it improve runtime performance over O3 ? > > Regards. > Krishna > _______________________________________________ > ILUGC Mailing List: > http://www.ae.iitm.ac.in/mailman/listinfo/ilugc > ILUGC Mailing List Guidelines: > http://ilugc.in/mailinglist-guidelines -- Gayatri Hitech http://gayatri-hitech.com _______________________________________________ ILUGC Mailing List: http://www.ae.iitm.ac.in/mailman/listinfo/ilugc ILUGC Mailing List Guidelines: http://ilugc.in/mailinglist-guidelines
