68 lines
1.6 KiB
C++
68 lines
1.6 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 "Luau/IrData.h"
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#include "Luau/RegisterX64.h"
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#include <array>
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#include <initializer_list>
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namespace Luau
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{
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namespace CodeGen
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{
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namespace X64
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{
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struct IrRegAllocX64
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{
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IrRegAllocX64(IrFunction& function);
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RegisterX64 allocGprReg(SizeX64 preferredSize);
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RegisterX64 allocXmmReg();
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RegisterX64 allocGprRegOrReuse(SizeX64 preferredSize, uint32_t index, std::initializer_list<IrOp> oprefs);
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RegisterX64 allocXmmRegOrReuse(uint32_t index, std::initializer_list<IrOp> oprefs);
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RegisterX64 takeReg(RegisterX64 reg);
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void freeReg(RegisterX64 reg);
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void freeLastUseReg(IrInst& target, uint32_t index);
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void freeLastUseRegs(const IrInst& inst, uint32_t index);
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bool isLastUseReg(const IrInst& target, uint32_t index) const;
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bool shouldFreeGpr(RegisterX64 reg) const;
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void assertFree(RegisterX64 reg) const;
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void assertAllFree() const;
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IrFunction& function;
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std::array<bool, 16> freeGprMap;
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std::array<bool, 16> freeXmmMap;
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};
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struct ScopedRegX64
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{
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explicit ScopedRegX64(IrRegAllocX64& owner);
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ScopedRegX64(IrRegAllocX64& owner, SizeX64 size);
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ScopedRegX64(IrRegAllocX64& owner, RegisterX64 reg);
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~ScopedRegX64();
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ScopedRegX64(const ScopedRegX64&) = delete;
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ScopedRegX64& operator=(const ScopedRegX64&) = delete;
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void alloc(SizeX64 size);
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void free();
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RegisterX64 release();
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IrRegAllocX64& owner;
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RegisterX64 reg;
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};
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} // namespace X64
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} // namespace CodeGen
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} // namespace Luau
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