René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"Refactor the JIT uops","articleBody":"# Feature or enhancement\n\n### Proposal:\n\nThe JIT optimizer initially only allowed a inplace op rewrites. This led to us contorting the JIT uops to fit that.\n\nNow that the JIT optimizer allows more than one op to be written at once, we should clean up and de-duplicate all the composite uops.\n\nE.g.\n```\nREPLACE_OP(_POP_TOP_LOAD_CONST_INLINE_BORROW, ..)\n```\nshould become\n```\nADD_OP(_POP_TOP, ...)\nADD_OP(_LOAD_CONST_INLINE_BORROW, ...)\n```\nand `_POP_TOP_LOAD_CONST_INLINE_BORROW` should then be completely removed from the JIT uops and bytecodes.c. This will allow us to de-duplicate and refactor the code greatly, while making the existing optimizations also more effective as we don't have to do as much repeated work.\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\n_No response_\n\n\u003c!-- gh-linked-prs --\u003e\n### Linked PRs\n* gh-148230\n* gh-148258\n* gh-148283\n* gh-148313\n* gh-148357\n* gh-148377\n* gh-148816\n\u003c!-- /gh-linked-prs --\u003e\n","author":{"url":"https://github.com/Fidget-Spinner","@type":"Person","name":"Fidget-Spinner"},"datePublished":"2026-04-07T12:35:54.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":10},"url":"https://github.com/148211/cpython/issues/148211"}