python / python/cpython

Refcount elimination and redundant push/pops pass needs fixing to work together

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#143,723 1 comment 0 reactions 1 assignee View on GitHub

@Fidget-Spinner is already working on this.

Since Jan 12, 2026.

interpreter-core performance type-feature
Dominant language
Python
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Description

Feature or enhancement

Proposal:

Refcount elimination inserts a _INSERT_X operation.

This isn't recognised by the push/pop removal pass in remove_unneeded_uops.

Fix by me eventually (TM).

Has this already been discussed elsewhere?

No response given

Links to previous discussion of this feature:

No response

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