luau/CodeGen/src/IrRegAllocX64.h

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2023-02-24 18:24:22 +00:00
// This file is part of the Luau programming language and is licensed under MIT License; see LICENSE.txt for details
#pragma once
#include "Luau/IrData.h"
#include "Luau/RegisterX64.h"
#include <array>
#include <initializer_list>
namespace Luau
{
namespace CodeGen
{
struct IrRegAllocX64
{
IrRegAllocX64(IrFunction& function);
RegisterX64 allocGprReg(SizeX64 preferredSize);
RegisterX64 allocXmmReg();
RegisterX64 allocGprRegOrReuse(SizeX64 preferredSize, uint32_t index, std::initializer_list<IrOp> oprefs);
RegisterX64 allocXmmRegOrReuse(uint32_t index, std::initializer_list<IrOp> oprefs);
void freeReg(RegisterX64 reg);
void freeLastUseReg(IrInst& target, uint32_t index);
void freeLastUseRegs(const IrInst& inst, uint32_t index);
IrFunction& function;
std::array<bool, 16> freeGprMap;
std::array<bool, 16> freeXmmMap;
};
struct ScopedRegX64
{
ScopedRegX64(IrRegAllocX64& owner, SizeX64 size);
ScopedRegX64(IrRegAllocX64& owner, RegisterX64 reg);
~ScopedRegX64();
ScopedRegX64(const ScopedRegX64&) = delete;
ScopedRegX64& operator=(const ScopedRegX64&) = delete;
void free();
IrRegAllocX64& owner;
RegisterX64 reg;
};
} // namespace CodeGen
} // namespace Luau