Paul Brook wrote:
Better to just teach qemu how to generate code.
In fact I've already done most of the infrastructure (and a fair amount of the
legwork) for this. The only major missing function is code to do softmmu
load/store ops.
https://nowt.dyndns.org/
Well, perhaps. Except that with gcc, we get to leverage the ongoing gcc
optimizations, bug fixes, new cpu support, debugger support, etc.
Granted, not all of these are going to be relevant to the qemu
environment, but in a contest between gcc generated code and qemu
generated code, I'll bet on gcc most days.
No doubt there are times when a gcc optimization takes so long that it
costs more time to optimize than would be won back by the running code.
Presumably, qemu generated code would be able to make better decisions
here. Except that we're not talking about using gcc in real time, are
we? So essentially we have near infinite time for optimizations.
--rich
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