>> > Are you suggesting a test for LOAD_FAST before the switch,
>> >
>> > e.g.
>> > if (opcode == LOAD_FAST) {
>> > // load fast
>> > }
>> > else switch (opcode) {
>> > // body
>> > }
>>
>> Yes.
Damien> Hmm, I might even be able to do something like this:
Damien> if (opcode >= LOAD_FAST_0) {
Damien> oparg = opcode - LOAD_FAST_0;
Damien> ...
Damien> }
Damien> else switch (opcode) {
Damien> }
I think you want "&& opcode <= LOAD_FAST_15" in there somewhere, or
something to cap the range of the test. Now you've increased the cost of
the check, maybe making it no longer worthwhile.
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