/// Code Generation virtual methods...
const uint16_t *getCalleeSavedRegs(const MachineFunction *MF = 0) const;
const uint32_t *getCallPreservedMask(CallingConv::ID) const;
+ const uint32_t *getNoPreservedMask() const;
BitVector getReservedRegs(const MachineFunction &MF) const;
- /// canCombineSubRegIndices - Given a register class and a list of
- /// subregister indices, return true if it's possible to combine the
- /// subregister indices into one that corresponds to a larger
- /// subregister. Return the new subregister index by reference. Note the
- /// new index may be zero if the given subregisters can be combined to
- /// form the whole register.
- virtual bool canCombineSubRegIndices(const TargetRegisterClass *RC,
- SmallVectorImpl<unsigned> &SubIndices,
- unsigned &NewSubIdx) const;
-
- const TargetRegisterClass *getPointerRegClass(unsigned Kind = 0) const;
+ const TargetRegisterClass*
+ getPointerRegClass(const MachineFunction &MF, unsigned Kind = 0) const;
const TargetRegisterClass*
getCrossCopyRegClass(const TargetRegisterClass *RC) const;
unsigned getRegPressureLimit(const TargetRegisterClass *RC,
MachineFunction &MF) const;
- ArrayRef<uint16_t> getRawAllocationOrder(const TargetRegisterClass *RC,
- unsigned HintType, unsigned HintReg,
- const MachineFunction &MF) const;
-
- unsigned ResolveRegAllocHint(unsigned Type, unsigned Reg,
- const MachineFunction &MF) const;
+ void getRegAllocationHints(unsigned VirtReg,
+ ArrayRef<MCPhysReg> Order,
+ SmallVectorImpl<MCPhysReg> &Hints,
+ const MachineFunction &MF,
+ const VirtRegMap *VRM) const;
void UpdateRegAllocHint(unsigned Reg, unsigned NewReg,
MachineFunction &MF) const;
unsigned MIFlags = MachineInstr::NoFlags)const;
/// Code Generation virtual methods...
- virtual bool isReservedReg(const MachineFunction &MF, unsigned Reg) const;
-
virtual bool requiresRegisterScavenging(const MachineFunction &MF) const;
+ virtual bool trackLivenessAfterRegAlloc(const MachineFunction &MF) const;
+
virtual bool requiresFrameIndexScavenging(const MachineFunction &MF) const;
virtual bool requiresVirtualBaseRegisters(const MachineFunction &MF) const;
virtual void eliminateFrameIndex(MachineBasicBlock::iterator II,
int SPAdj, RegScavenger *RS = NULL) const;
-
-private:
- unsigned getRegisterPairEven(unsigned Reg, const MachineFunction &MF) const;
-
- unsigned getRegisterPairOdd(unsigned Reg, const MachineFunction &MF) const;
};
} // end namespace llvm