mirror of
https://github.com/luau-lang/luau.git
synced 2024-11-15 22:35:43 +08:00
140e5a1495
* Fixed incorrect lexeme generated for string parts in the middle of an interpolated string (Fixes https://github.com/Roblox/luau/issues/744) * DeprecatedApi lint can report some issues without type inference information * Fixed performance of autocomplete requests when suggestions have large intersection types (Solves https://github.com/Roblox/luau/discussions/847) * Marked `table.getn`/`foreach`/`foreachi` as deprecated ([RFC: Deprecate table.getn/foreach/foreachi](https://github.com/Roblox/luau/blob/master/rfcs/deprecate-table-getn-foreach.md)) * With -O2 optimization level, we now optimize builtin calls based on known argument/return count. Note that this change can be observable if `getfenv/setfenv` is used to substitute a builtin, especially if arity is different. Fastcall heavy tests show a 1-2% improvement. * Luau can now be built with clang-cl (Fixes https://github.com/Roblox/luau/issues/736) We also made many improvements to our experimental components. For our new type solver: * Overhauled data flow analysis system, fixed issues with 'repeat' loops, global variables and type annotations * Type refinements now work on generic table indexing with a string literal * Type refinements will properly track potentially 'nil' values (like t[x] for a missing key) and their further refinements * Internal top table type is now isomorphic to `{}` which fixes issues when `typeof(v) == 'table'` type refinement is handled * References to non-existent types in type annotations no longer resolve to 'error' type like in old solver * Improved handling of class unions in property access expressions * Fixed default type packs * Unsealed tables can now have metatables * Restored expected types for function arguments And for native code generation: * Added min and max IR instructions mapping to vminsd/vmaxsd on x64 * We now speculatively extract direct execution fast-paths based on expected types of expressions which provides better optimization opportunities inside a single basic block * Translated existing math fastcalls to IR form to improve tag guard removal and constant propagation
46 lines
1.1 KiB
C++
46 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
|
|
#pragma once
|
|
|
|
#include "Luau/RegisterX64.h"
|
|
#include "UnwindBuilder.h"
|
|
|
|
namespace Luau
|
|
{
|
|
namespace CodeGen
|
|
{
|
|
|
|
class UnwindBuilderDwarf2 : public UnwindBuilder
|
|
{
|
|
public:
|
|
void setBeginOffset(size_t beginOffset) override;
|
|
size_t getBeginOffset() const override;
|
|
|
|
void start() override;
|
|
|
|
void spill(int espOffset, X64::RegisterX64 reg) override;
|
|
void save(X64::RegisterX64 reg) override;
|
|
void allocStack(int size) override;
|
|
void setupFrameReg(X64::RegisterX64 reg, int espOffset) override;
|
|
|
|
void finish() override;
|
|
|
|
size_t getSize() const override;
|
|
|
|
void finalize(char* target, void* funcAddress, size_t funcSize) const override;
|
|
|
|
private:
|
|
size_t beginOffset = 0;
|
|
|
|
static const unsigned kRawDataLimit = 128;
|
|
uint8_t rawData[kRawDataLimit];
|
|
uint8_t* pos = rawData;
|
|
|
|
uint32_t stackOffset = 0;
|
|
|
|
// We will remember the FDE location to write some of the fields like entry length, function start and size later
|
|
uint8_t* fdeEntryStart = nullptr;
|
|
};
|
|
|
|
} // namespace CodeGen
|
|
} // namespace Luau
|