`Tools/cases_generator/interpreter_definition.md` lacks information about some prefixes

[Eclips4]

So far it's seem that we haven't any documentation for:

• specializing
• replicate
• split (Actually, it has been removed in 7ebd71e)
• no_save_ip

[skv0zsneg]

Hello! Can I take it?

[Eclips4]

Hello! Can I take it?

Sure! Don't be shy to ask any questions.

[skv0zsneg]

Hey, @Eclips4!

If I understand issue correctly in DSL can be some prefixes to instructions and they must be documented in this section, but we lost specializing, replicate, split and no_save_ip prefixes. Is it right?

If so, then where I can get information about lost ones to fill up docs?

[Eclips4]

Hey, @Eclips4!

If I understand issue correctly in DSL can be some prefixes to instructions and they must be documented in this section, but we lost specializing, replicate, split and no_save_ip prefixes. Is it right?

Yup, you're right.

If so, then where I can get information about lost ones to fill up docs?

I've read through Python/bytecodes.c and Tools/cases_generator/, so here’s my explanation for some of the annotations I found (and actually, there are a few more):

• specializing: A prefix for an instructions related to adaptive interpreter
• replaced: This instruction will be replaced in the final bytecode by its directed version (either forward or backward)
• register: Currently does nothing
• replicate(N): Replicate the instruction N times to store the oparg "inside" the instruction.
• no_save_ip: This instruction does not affect the instruction pointer