Le mercredi, 18 mai 2005, à 22:48 Europe/Paris, Paul Brook a écrit :
It's been said before that the long-term solution is to [incrementally] remove
dyngen altogether, and replace it with a had-written code generator.
I've discussed this in a bit more detail with Fabrice, and have an
almost-working prototype implementation. When I get something that actually
works I'll post it to the list for comments.
Have you considered the VEX library? I have not tried it yet but it looks promising. However, since it aims at providing a common IR, it can miss certain optimizations related to condition codes (at least as ppc guest).
BTW, since dyngen-based JIT is fast enough both at compile time and at run time, it could be used to gather stats for a higher optimizing JIT (VEX or whatever). e.g. profiling branches in order to optimize hot traces, providing hints for indirect branches, etc.
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