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{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"Split opcodes into micro-ops","articleBody":"See https://github.com/faster-cpython/ideas/issues/592. This project can be parallelized, and I could use help!\r\n\r\nNote that initially we don't have a tier-2 interpreter or instruction format defined yet, but the first stage of splitting doesn't require that.\r\n\r\n### Remaining non-viable ops\r\n\r\nWith usage stats from the latest weekly pyperformance run (not all are uop candidates):\r\n\r\n```\r\n        956,835,460 YIELD_VALUE                        \r\n        490,121,077 SEND_GEN                            (specialization of SEND)\r\n        429,220,003 JUMP_FORWARD                       \r\n        410,623,920 EXTENDED_ARG                       \r\n        390,537,200 JUMP_BACKWARD_NO_INTERRUPT         \r\n        250,483,954 RETURN_GENERATOR                   \r\n        239,793,181 CALL_LIST_APPEND                    (specialization of CALL)\r\n        168,297,543 CALL_KW                            \r\n        162,922,780 FOR_ITER_GEN                        (specialization of FOR_ITER)\r\n        157,442,920 CALL_PY_WITH_DEFAULTS               (specialization of CALL)\r\n        145,986,780 BINARY_SUBSCR_GETITEM               (specialization of BINARY_SUBSCR)\r\n        135,636,840 STORE_FAST_LOAD_FAST               \r\n         83,118,452 MAKE_CELL                          \r\n         74,149,898 CALL_FUNCTION_EX                   \r\n         68,587,076 CALL_ALLOC_AND_ENTER_INIT           (specialization of CALL)\r\n         49,897,724 STORE_ATTR_WITH_HINT                (specialization of STORE_ATTR)\r\n         49,846,886 LOAD_ATTR_PROPERTY                  (specialization of LOAD_ATTR)\r\n          8,224,500 RERAISE                            \r\n          6,000,000 END_ASYNC_FOR                      \r\n          5,801,385 BEFORE_WITH                        \r\n          2,892,780 RAISE_VARARGS                      \r\n          1,850,040 IMPORT_FROM                        \r\n          1,813,620 IMPORT_NAME                        \r\n                240 CLEANUP_THROW                      \r\n                120 BEFORE_ASYNC_WITH                  \r\n                    ENTER_EXECUTOR                     \r\n                    LOAD_ATTR_GETATTRIBUTE_OVERRIDDEN   (specialization of LOAD_ATTR)\r\n```\r\n\r\n\u003c!-- gh-linked-prs --\u003e\r\n### Linked PRs\r\n* gh-104910\r\n* gh-105748\r\n* gh-106677\r\n* gh-106678\r\n* gh-107444\r\n* gh-109316\r\n* gh-109943\r\n* gh-110025\r\n* gh-110317\r\n* gh-110560\n\u003c!-- /gh-linked-prs --\u003e\r\n","author":{"url":"https://github.com/gvanrossum","@type":"Person","name":"gvanrossum"},"datePublished":"2023-05-24T23:28:03.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":1},"url":"https://github.com/104909/cpython/issues/104909"}