>>>>> Joe Buck writes: Joe> What worries me is that we can't afford to make -O0 run significantly Joe> slower than it does now. Cycle speeds are no longer increasing, we have Joe> to be very careful about slowing things down.
Adding more passes does not necessarily slow down the compiler, as
IBM found with XLC. If one can remove enough dead code / statements /
insns / IR, one performs more processing on less data leading to less
overall work and faster compilation at -O0.
David
