[New-bugs-announce] [issue47120] Make all jumps relative

[Irit Katriel]

New submission from Irit Katriel <iritkatriel at gmail.com>:

For some of our jump opcodes target is absolute, so it can easily require EXTENDED_ARGS. Our analysis [1] shows that turning all absolute jumps into relative jumps will eliminate almost all EXTENDED_ARGS on jumps. 

This will require a _BACK version for each jump type, which negates the oparg.

[1] https://github.com/faster-cpython/ideas/discussions/235#discussioncomment-2417022

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assignee: iritkatriel
components: Interpreter Core
messages: 416003
nosy: iritkatriel
priority: normal
severity: normal
status: open
title: Make all jumps relative
type: performance
versions: Python 3.11

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue47120>
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