Fused opcodes: LOOK_ADD1 (lookup + increment) and LOOK_SUB1 (lookup + decrement) emitted directly by compiler for (+ sym 1) and (- sym 1) patterns. Eliminates one dispatch per loop iteration. sum-to(50000) ratio improved from 59x to 45x vs Python. ackermann(3,4) steady at 83x. 571 tests green. Also defines LOOK_LOOK, CONST_EQ_JF, LOOK_CONST_CALL2 superinstruction opcodes (VM handlers ready, compiler emission for remaining patterns deferred to next pass). |
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