// This file is part of the Luau programming language and is licensed under MIT License; see LICENSE.txt for details #pragma once #include "Luau/Ast.h" #include "Luau/DenseHash.h" namespace Luau { namespace Compile { // cost model: 8 bytes, where first byte is the baseline cost, and the next 7 bytes are discounts for when variable #i is constant uint64_t modelCost(AstNode* root, AstLocal* const* vars, size_t varCount, const DenseHashMap& builtins); // cost is computed as B - sum(Di * Ci), where B is baseline cost, Di is the discount for each variable and Ci is 1 when variable #i is constant int computeCost(uint64_t model, const bool* varsConst, size_t varCount); // get loop trip count or -1 if we can't compute it precisely int getTripCount(double from, double to, double step); } // namespace Compile } // namespace Luau