On 7/24/2012 12:58 AM, Dmitry Olshansky wrote:
Now if I use final switches there is still:
A) jump table per switch, or maybe less but there is no guarantees
(= depend on another optimization that's not here)
B) it's an ugly and a roundabout way to do this
However I think that always requiring tail call optimization or providing syntax
to enforce it would work:
void op_1()
{
...//some code for instruction 1
opcode = cast(function void ())code[pc++];
goto opcode(); //opcode is pointer to function op_xx
}
//can do without goto fn() iff tail call is GUARANTEED
I believe you can do this with:
switch (pc++)
and there are the same number of indirections.
