MipsMachineFunction.h [plain text]
#ifndef MIPS_MACHINE_FUNCTION_INFO_H
#define MIPS_MACHINE_FUNCTION_INFO_H
#include <utility>
#include "llvm/ADT/SmallVector.h"
#include "llvm/ADT/VectorExtras.h"
#include "llvm/CodeGen/MachineFunction.h"
#include "llvm/CodeGen/MachineFrameInfo.h"
namespace llvm {
class MipsFunctionInfo : public MachineFunctionInfo {
private:
MachineFunction& MF;
unsigned SRetReturnReg;
unsigned GlobalBaseReg;
int VarArgsFrameIndex;
std::pair<int, int> InArgFIRange, OutArgFIRange;
int GPFI; mutable int DynAllocFI; unsigned MaxCallFrameSize;
unsigned RegSaveAreaSize;
public:
MipsFunctionInfo(MachineFunction& MF)
: MF(MF), SRetReturnReg(0), GlobalBaseReg(0),
VarArgsFrameIndex(0), InArgFIRange(std::make_pair(-1, 0)),
OutArgFIRange(std::make_pair(-1, 0)), GPFI(0), DynAllocFI(0),
MaxCallFrameSize(0), RegSaveAreaSize(0)
{}
bool isInArgFI(int FI) const {
return FI <= InArgFIRange.first && FI >= InArgFIRange.second;
}
void setLastInArgFI(int FI) { InArgFIRange.second = FI; }
bool isOutArgFI(int FI) const {
return FI <= OutArgFIRange.first && FI >= OutArgFIRange.second;
}
void extendOutArgFIRange(int FirstFI, int LastFI) {
if (!OutArgFIRange.second)
OutArgFIRange.first = FirstFI;
OutArgFIRange.second = LastFI;
}
int getGPFI() const { return GPFI; }
void setGPFI(int FI) { GPFI = FI; }
bool needGPSaveRestore() const { return getGPFI(); }
bool isGPFI(int FI) const { return GPFI && GPFI == FI; }
int getDynAllocFI() const {
if (!DynAllocFI)
DynAllocFI = MF.getFrameInfo()->CreateFixedObject(4, 0, true);
return DynAllocFI;
}
bool isDynAllocFI(int FI) const { return DynAllocFI && DynAllocFI == FI; }
unsigned getSRetReturnReg() const { return SRetReturnReg; }
void setSRetReturnReg(unsigned Reg) { SRetReturnReg = Reg; }
unsigned getGlobalBaseReg() const { return GlobalBaseReg; }
void setGlobalBaseReg(unsigned Reg) { GlobalBaseReg = Reg; }
int getVarArgsFrameIndex() const { return VarArgsFrameIndex; }
void setVarArgsFrameIndex(int Index) { VarArgsFrameIndex = Index; }
unsigned getMaxCallFrameSize() const { return MaxCallFrameSize; }
void setMaxCallFrameSize(unsigned S) { MaxCallFrameSize = S; }
unsigned getRegSaveAreaSize() const { return RegSaveAreaSize; }
void setRegSaveAreaSize(unsigned S) {
if (RegSaveAreaSize < S) RegSaveAreaSize = S;
}
};
}
#endif // MIPS_MACHINE_FUNCTION_INFO_H