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// SPDX-License-Identifier: GPL-3.0-or-later
#ifndef RCC_CODEGEN_LIVERANGEEDIT_H
#define RCC_CODEGEN_LIVERANGEEDIT_H
#include "rcc/CodeGen/VirtRegMap.h"
#include <optional>
namespace rcc {
class TargetDescription;
class LiveRangeEdit final {
public:
LiveRangeEdit(MachineFunction &Function, const TargetDescription &Target, VirtRegMap &Mapping)
: Function(&Function), Target(&Target), Mapping(&Mapping) {}
[[nodiscard]] Expected<Register> createFrom(Register Parent, bool Spillable,
std::optional<Register> Origin = std::nullopt);
[[nodiscard]] Expected<FrameIndex> getOrCreateSpillSlot(Register VirtualReg);
[[nodiscard]] Expected<void> eraseVirtualRegister(Register VirtualReg);
private:
MachineFunction *Function;
const TargetDescription *Target;
VirtRegMap *Mapping;
};
} // namespace rcc
#endif // RCC_CODEGEN_LIVERANGEEDIT_H
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