[Mono-devel-list] StringBuilder patch

[Paolo Molaro]

On 01/13/04 Piers Haken wrote:
> Yeah, you could certainly apply this optimization in a few limited cases
> during peephole. However, I believe you'd be able to do this (and similar
> optimizations) in more complex cases like...
> 
> 	if (c == 7)
> 		return obj.method (1);
> 	else
> 		return obj.method (19);
> 
> ...if you had some kind of higher-level branch analysis that occurred
> earlier in the process. I'm not sure if burg would be useful for this or
[...]

That is a form of code hoisting: it's an optimization that may or may
not improve performance (though it usually reduces code size).
Since it's probably not going to give big improvements, it's not in our
immediate plans to implement, though, as always, if someone wants to
try it an post some numbers, it will be welcome.

lupus

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