On 02/18/2010 12:03 PM, rohitgeek wrote: > I am a newbie in compilers, recently came across a problem that when i try > to use optimization options( -O_ ) during compilation , i do not get the > asembly for the processor that i am porting gcc to. Is there a simple thing > i am missing somewhere? Probably. Tell us exactly what you did, with full details. http://catb.org/~esr/faqs/smart-questions.html > Secondly, are there some macros i need to define in regard with > optimization. No. Andrew.