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https://github.com/luau-lang/luau.git
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25cc75b096
* Add a missing recursion limiter in `Unifier::tryUnifyTables`. This was causing a crash in certain situations.
* Luau heap graph enumeration improvements:
* Weak references are not reported
* Added tag as a fallback name of non-string table links
* Included top Luau function information in thread name to understand where thread might be suspended
* Constant folding for `math.pi` and `math.huge` at -O2
* Optimize `string.format` and `%*`
* This change makes string interpolation 1.5x-2x faster depending on the number and type of formatted components, assuming a few are using primitive types, and reduces associated GC pressure.
New solver
* Initial work toward tracking the upper and lower bounds of types more accurately.
JIT
* Add IrCmd::CHECK_TRUTHY for improved assert fast-calls
* Do not compute type map for modules without types
* Capture metatable+readonly state for NEW_TABLE IR instructions
* Replace JUMP_CMP_ANY with CMP_ANY and existing JUMP_EQ_INT
* Add support for exits to VM with reentry lock in VmExit
49 lines
1.1 KiB
C++
49 lines
1.1 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 "ValueTracking.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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struct Constant
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{
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enum Type
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{
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Type_Unknown,
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Type_Nil,
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Type_Boolean,
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Type_Number,
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Type_String,
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};
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Type type = Type_Unknown;
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unsigned int stringLength = 0;
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union
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{
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bool valueBoolean;
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double valueNumber;
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const char* valueString = nullptr; // length stored in stringLength
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};
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bool isTruthful() const
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{
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LUAU_ASSERT(type != Type_Unknown);
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return type != Type_Nil && !(type == Type_Boolean && valueBoolean == false);
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}
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AstArray<const char> getString() const
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{
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LUAU_ASSERT(type == Type_String);
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return {valueString, stringLength};
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}
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};
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void foldConstants(DenseHashMap<AstExpr*, Constant>& constants, DenseHashMap<AstLocal*, Variable>& variables,
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DenseHashMap<AstLocal*, Constant>& locals, const DenseHashMap<AstExprCall*, int>* builtins, bool foldMathK, AstNode* root);
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} // namespace Compile
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} // namespace Luau
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