On Wed, Feb 2, 2011 at 11:04 PM, Ian Lance Taylor <iant@xxxxxxxxxx> wrote: > What you want is to disable all optimizations other than register > allocation. That does not sound like a particularly useful feature for > gcc to provide, and in fact it does not provide it. You could do it by > changing gcc's source code. Ian, would that actually say that with -O0 you can say goodbye to "register" keywords (gcc will start ignoring them for -O0, while for other -Ox it will **not** ignore them) ? BR, Drasko