lyng/notes/fast_ops_optimizations_plan.md

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# Fast Ops Optimizations Plan (Draft)
Baseline
- See `notes/nested_range_baseline.md`
Candidates (not started)
1) Primitive comparisons (done)
- Emit fast CMP variants for known ObjString/ObjInt/ObjReal using temp/stable slots.
- MixedCompareBenchmarkTest: 374 ms -> 347 ms.
2) Mixed numeric ops
- Ensure INT+REAL arithmetic uses INT_TO_REAL + REAL op with no extra moves/boxing.
3) Boolean conversion
- Skip OBJ_TO_BOOL when compiler already has a BOOL slot.
4) Range/loop hot path
- Keep range iteration in INT ops, avoid accidental boxing.
- Confirm loop-var slots avoid re-boxing in loop bodies.
5) String ops
- Extend fast path for string comparisons in hot loops.
6) Box/unbox audit
- Identify remaining BOX_OBJ / OBJ_TO_* in inner loops and eliminate when safe.