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{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"Remove duplicate uops `_LOAD_CONST_UNDER_INLINE(_BORROW)` in JIT","articleBody":"# Feature or enhancement\n\n### Proposal:\n\n`_INSERT_1_LOAD_CONST_INLINE(_BORROW)` and `_LOAD_CONST_UNDER_INLINE(_BORROW)` have identical stack effects — they're basically the same thing with different names.\n\nhttps://github.com/python/cpython/blob/0b20bff386141ee0e8c62da8366f674bad17e048/Python/bytecodes.c#L5927-L5937\nhttps://github.com/python/cpython/blob/0b20bff386141ee0e8c62da8366f674bad17e048/Python/bytecodes.c#L5968-L5978\n\n`_LOAD_CONST_UNDER_INLINE(_BORROW)` already has entries in `op_without_push`, so `remove_unneeded_uops` can properly simplify it. However `_INSERT_1` don't, thus we should rename all `_INSERT_1` usages to `_LOAD_CONST_UNDER` and remove the duplicate definitions.\n\n### Has this already been discussed elsewhere?\n\nThis is a minor feature, which does not need previous discussion elsewhere\n\n### Links to previous discussion of this feature:\n\nhttps://github.com/python/cpython/pull/148230#discussion_r3047605163\n\n\u003c!-- gh-linked-prs --\u003e\n### Linked PRs\n* gh-148236\n\u003c!-- /gh-linked-prs --\u003e\n","author":{"url":"https://github.com/NekoAsakura","@type":"Person","name":"NekoAsakura"},"datePublished":"2026-04-08T02:52:51.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":2},"url":"https://github.com/148235/cpython/issues/148235"}