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