Drasko DRASKOVIC <drasko.draskovic@xxxxxxxxx> writes: > 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. ÂThat does not sound like a particularly useful feature for >> gcc to provide, and in fact it does not provide it. ÂYou could do it by >> changing gcc's source code. > > 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) ? My understanding was that the OP did not want to put register keywords everywhere. As far as I know gcc does ignore the register keyword at optimization levels about -O0, except for register asm and forbidding taking the address of a variable marked as register. Ian
