On 11/11/2012 07:47 PM, Xin Tong wrote: > when gcc is set to compile for minimal code size, what kind of > optimizations does gcc apply in comparison to compile for performance > ? or it is just gcc spends more time doing the compilation, selecting > instruction sequences that are optimal for code size. No. GCC does all optimizations *except* those known to increase program size. This usually works pretty well, but isn't perfect. Andrew.
