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b4ebad4862
All of our changes this week have been focused on the new type solver and the JIT. As we march toward feature parity with the old solver, we've tightened up a bunch of lingering issues with overload resolution, unsealed tables, and type normalization. We've also fixed a bunch of crashes and assertion failures in the new solver. On the JIT front, we've started work on an A64 backend, improved the IR analysis in a bunch of cases, and implemented assembly generation for the builtin functions `type()` and `typeof()`. --------- Co-authored-by: Arseny Kapoulkine <arseny.kapoulkine@gmail.com> Co-authored-by: Vyacheslav Egorov <vegorov@roblox.com>
83 lines
1.8 KiB
C++
83 lines
1.8 KiB
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 <bitset>
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#include <utility>
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#include <vector>
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#include <stdint.h>
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namespace Luau
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{
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namespace CodeGen
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{
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struct IrBlock;
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struct IrFunction;
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void updateUseCounts(IrFunction& function);
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void updateLastUseLocations(IrFunction& function);
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// Returns how many values are coming into the block (live in) and how many are coming out of the block (live out)
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std::pair<uint32_t, uint32_t> getLiveInOutValueCount(IrFunction& function, IrBlock& block);
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uint32_t getLiveInValueCount(IrFunction& function, IrBlock& block);
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uint32_t getLiveOutValueCount(IrFunction& function, IrBlock& block);
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struct RegisterSet
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{
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std::bitset<256> regs;
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// If variadic sequence is active, we track register from which it starts
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bool varargSeq = false;
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uint8_t varargStart = 0;
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};
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struct CfgInfo
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{
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std::vector<uint32_t> predecessors;
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std::vector<uint32_t> predecessorsOffsets;
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std::vector<uint32_t> successors;
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std::vector<uint32_t> successorsOffsets;
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std::vector<RegisterSet> in;
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std::vector<RegisterSet> def;
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std::vector<RegisterSet> out;
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RegisterSet captured;
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};
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void computeCfgInfo(IrFunction& function);
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struct BlockIteratorWrapper
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{
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const uint32_t* itBegin = nullptr;
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const uint32_t* itEnd = nullptr;
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bool empty() const
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{
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return itBegin == itEnd;
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}
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size_t size() const
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{
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return size_t(itEnd - itBegin);
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}
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const uint32_t* begin() const
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{
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return itBegin;
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}
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const uint32_t* end() const
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{
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return itEnd;
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}
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};
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BlockIteratorWrapper predecessors(const CfgInfo& cfg, uint32_t blockIdx);
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BlockIteratorWrapper successors(const CfgInfo& cfg, uint32_t blockIdx);
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} // namespace CodeGen
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} // namespace Luau
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