On Aug 12, 2003, "Chen, Kenneth W" <kenneth.w.chen@xxxxxxxxx> wrote: > Is there a way to turn just that optimization off? I still need the > -O2 option to keep other optimization. -fno-optimize-sibling-calls Next time, before asking, please try -S -fverbose-asm and check all the flags listed in the generated assembly file, or read the definition of each optimization level directly in the GCC manual. -- Alexandre Oliva Enjoy Guarana', see http://www.ic.unicamp.br/~oliva/ Red Hat GCC Developer aoliva@{redhat.com, gcc.gnu.org} CS PhD student at IC-Unicamp oliva@{lsd.ic.unicamp.br, gnu.org} Free Software Evangelist Professional serial bug killer