James Murray <j...@jsm-net.demon.co.uk> writes: > However, the generated code isn't as good as the output from 3.3.6. I > swapped back to unpatched 3.4.4 and compared with unpatched 3.3.6.
I can understand why you are doing this. However, you should be aware that the compiler internals changed significantly in version 4.0. Time spent working on detailed optimizations of gcc 3.4 is almost certainly time wasted. Walking forward version by version makes some sense, I guess, but you shouldn't even look at the optimizations in the generated code until you get to at least 4.3. Ian
