Compiler optimisations for large contracts (draft — discussion PR) - #428

Draft

mr-zwets wants to merge 11 commits into

CashScript:nextfrom

mr-zwets:compiler-optimizations-3

Commits on Jul 30, 2026

feat(cashc): destructure tuples into existing variables

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perf(utils): rewrite the peephole optimiser to match opcodes directly

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perf(cashc): gate the legacy-optimiser cross-check by size and a compiler flag

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perf(cashc): keep loop-resident functions OP_DEFINE'd to avoid stepping cost

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feat(cashc): hoist repeated in-body constants under a new optimizeFor objective

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perf(cashc): stage user-function arguments right-to-left (first param on top)

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perf(cashc): inline small multi-use bodies under the 'opcost' objective

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perf(cashc): sink variable definitions to first use under the size objective

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perf(cashc): opt-in DAG stack rescheduling (rescheduleStacks)

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test(utils): land a differential fuzz suite for the peephole optimiser

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perf(cashc): make tiny-body inlining placement-aware, and the byte model exact

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