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//===- XCoreMachineFunctionInfo.h - XCore machine function info -*- C++ -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
// This file declares XCore-specific per-machine-function information.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_LIB_TARGET_XCORE_XCOREMACHINEFUNCTIONINFO_H
#define LLVM_LIB_TARGET_XCORE_XCOREMACHINEFUNCTIONINFO_H
#include "llvm/CodeGen/MachineBasicBlock.h"
#include "llvm/CodeGen/MachineFrameInfo.h"
#include "llvm/CodeGen/MachineFunction.h"
#include <cassert>
#include <utility>
#include <vector>
namespace llvm {
/// XCoreFunctionInfo - This class is derived from MachineFunction private
/// XCore target-specific information for each MachineFunction.
class XCoreFunctionInfo : public MachineFunctionInfo {
bool LRSpillSlotSet = false;
int LRSpillSlot;
bool FPSpillSlotSet = false;
int FPSpillSlot;
bool EHSpillSlotSet = false;
int EHSpillSlot[2];
unsigned ReturnStackOffset;
bool ReturnStackOffsetSet = false;
int VarArgsFrameIndex = 0;
mutable int CachedEStackSize = -1;
std::vector<std::pair<MachineBasicBlock::iterator, CalleeSavedInfo>>
SpillLabels;
virtual void anchor();
public:
XCoreFunctionInfo() = default;
explicit XCoreFunctionInfo(MachineFunction &MF) {}
~XCoreFunctionInfo() override = default;
void setVarArgsFrameIndex(int off) { VarArgsFrameIndex = off; }
int getVarArgsFrameIndex() const { return VarArgsFrameIndex; }
int createLRSpillSlot(MachineFunction &MF);
bool hasLRSpillSlot() { return LRSpillSlotSet; }
int getLRSpillSlot() const {
assert(LRSpillSlotSet && "LR Spill slot not set");
return LRSpillSlot;
}
int createFPSpillSlot(MachineFunction &MF);
bool hasFPSpillSlot() { return FPSpillSlotSet; }
int getFPSpillSlot() const {
assert(FPSpillSlotSet && "FP Spill slot not set");
return FPSpillSlot;
}
const int* createEHSpillSlot(MachineFunction &MF);
bool hasEHSpillSlot() { return EHSpillSlotSet; }
const int* getEHSpillSlot() const {
assert(EHSpillSlotSet && "EH Spill slot not set");
return EHSpillSlot;
}
void setReturnStackOffset(unsigned value) {
assert(!ReturnStackOffsetSet && "Return stack offset set twice");
ReturnStackOffset = value;
ReturnStackOffsetSet = true;
}
unsigned getReturnStackOffset() const {
assert(ReturnStackOffsetSet && "Return stack offset not set");
return ReturnStackOffset;
}
bool isLargeFrame(const MachineFunction &MF) const;
std::vector<std::pair<MachineBasicBlock::iterator, CalleeSavedInfo>> &
getSpillLabels() {
return SpillLabels;
}
};
} // end namespace llvm
#endif // LLVM_LIB_TARGET_XCORE_XCOREMACHINEFUNCTIONINFO_H
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