Hi Segher , Thanks a lot . Compiling with the flags -S -fverbose-asm , gives exactly what I need in the *.s file . Its great . Thanks again . Cheers --- Segher Boessenkool <segher@xxxxxxxxx> wrote: > Anticipating a Reply wrote: > > I know that the flags are documented , > > but which all get used with -O2 , -O3 ,..... > > That is documented, as well. > > > Can we not find this during compiling ? > > Try compiling with the flags -S -fverbose-asm . > > > Segher > > ________________________________________________________________________ Send free SMS using the Yahoo! Messenger. Go to http://in.mobile.yahoo.com/new/pc/