lyng/notes/fast_ops_optimizations_plan.md

Fast Ops Optimizations Plan (Draft)

Baseline

• See notes/nested_range_baseline.md

Candidates (not started)

1. Primitive comparisons
   • Emit fast CMP variants for known ObjString/ObjInt/ObjReal/ObjBool across all comparison operators.
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.