Message 403291 - Python tracker

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Author	Mark.Shannon
Recipients	Mark.Shannon
Date	2021-10-06.10:06:24
SpamBayes Score	-1.0
Marked as misclassified	Yes
Message-id	<1633514784.49.0.280393257711.issue45388@roundup.psfhosted.org>
In-reply-to

Content
Python has two unconditional jumps, JUMP_ABSOLUTE and JUMP_FORWARD. The bytecode compiler should ensure that all forward jumps use JUMP_FORWARD and all backwards jumps use JUMP_ABSOLUTE. That way, the interpreter will know that JUMP_ABSOLUTE jumps are backwards and won't need to check.

Python has two unconditional jumps, JUMP_ABSOLUTE and JUMP_FORWARD.

The bytecode compiler should ensure that all forward jumps use JUMP_FORWARD and all backwards jumps use JUMP_ABSOLUTE.

That way, the interpreter will know that JUMP_ABSOLUTE jumps are backwards and won't need to check.

History
Date	User	Action	Args
2021-10-06 10:06:24	Mark.Shannon	set	recipients: + Mark.Shannon
2021-10-06 10:06:24	Mark.Shannon	set	messageid: <1633514784.49.0.280393257711.issue45388@roundup.psfhosted.org>
2021-10-06 10:06:24	Mark.Shannon	link	issue45388 messages
2021-10-06 10:06:24	Mark.Shannon	create