Re: Debugging of optimized code

This is an area where a small amount of progress has been made and where
more progress will be made in the future. However, the problem is
ultimately (at full optimization levels) intractable. The best approach
(in my opinion) is to closely couple the concerns of debugging and
optimization so that particular optimizations that thwart debugging can be
avoided (without having to generally reduce the level of optimization) and
optimizations that ARE performed can be made known to the debugger.


Associates of mine who worked on the AS/400 V2R3 ILE optimizer made some
small progress in these areas, but the challenges are too daunting to
expect very much progress very fast. And we will never (again, in my
opinion) see the ability to debug fully optimized RISC code. And just
wait until you see VLIW!!
Dan Hicks
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