[New-bugs-announce] [issue47186] split JUMP_IF_NOT_EXC/EG_MATCH into CHECK_EXC/EG_MATCH + jump

[Irit Katriel]

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

It would help issue47120 to reduce the number of jump opcodes.

The exception matching opcodes JUMP_IF_NOT_EXC_MATCH  and JUMP_IF_NOT_EG_MATCH are not hot, and we can split them into a check + ordinary jump. 

For JUMP_IF_NOT_EXC_MATCH  this is simple because the stack effect is the same for the jump and non-jump case. For JUMP_IF_NOT_EG_MATCH the stack effect will need to be made the same, and the opcodes emitted around it adapted.

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assignee: iritkatriel
components: Interpreter Core
messages: 416484
nosy: iritkatriel
priority: normal
severity: normal
status: open
title: split JUMP_IF_NOT_EXC/EG_MATCH into CHECK_EXC/EG_MATCH + jump
versions: Python 3.11

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue47186>
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