Hi Adarsh, > I have used the follwing command, > opt -load LLVComMan.so -ComMan -memdep -tbaa -mem2reg maptest.ll -S > What option other than -mem2reg should be included in this case to get the > right results? Does the order in which I specify the optimizations to be run > make a difference? what is in maptest.ll? Ciao, Duncan.