On Tuesday 30 August 2005 17:53, Peter Steinmetz wrote: > While this doesn't explain all of the degradations discussed (some were > showing up on older versions of the compiler), it may explain some.
There is a lot of empirical evidence that the loop optimizer already doesn't do many useful things anymore, so this "some" is likely a negligible some. A more likely source of performance degradation is that loop unrolling is enabled when profiling, and loop unrolling is almost always a bad pessimization on 32 bits x86 targets. Gr. Steven
