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GH-115457: Support splitting and replication of micro ops. - #115558
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Adds the
splitandreplicate(N)annotationssplitsplits uops into two depending on the low bit of theoparg. This removes a few jumps from uops like_LOAD_ATTR_INSTANCE_VALUE.replicate(N)replicates the original uop for each oparg inrange(N). This is particularly valuable for uops that loop overoparg, but it is also useful to inline the oparg at build time rather than when patching.