+ // Calls involved in thread-local variable lookup save more registers than
+ // normal calls, so they need a different mask to represent this.
+ const uint32_t *getTLSCallPreservedMask() const;
+
+ /// getThisReturnPreservedMask - Returns a call preserved mask specific to the
+ /// case that 'returned' is on an i64 first argument if the calling convention
+ /// is one that can (partially) model this attribute with a preserved mask
+ /// (i.e. it is a calling convention that uses the same register for the first
+ /// i64 argument and an i64 return value)
+ ///
+ /// Should return NULL in the case that the calling convention does not have
+ /// this property
+ const uint32_t *getThisReturnPreservedMask(CallingConv::ID) const;
+
+ BitVector getReservedRegs(const MachineFunction &MF) const override;
+ const TargetRegisterClass *
+ getPointerRegClass(const MachineFunction &MF,
+ unsigned Kind = 0) const override;
+ const TargetRegisterClass *
+ getCrossCopyRegClass(const TargetRegisterClass *RC) const override;
+
+ bool requiresRegisterScavenging(const MachineFunction &MF) const override;
+ bool useFPForScavengingIndex(const MachineFunction &MF) const override;
+ bool requiresFrameIndexScavenging(const MachineFunction &MF) const override;
+
+ bool needsFrameBaseReg(MachineInstr *MI, int64_t Offset) const override;
+ bool isFrameOffsetLegal(const MachineInstr *MI,
+ int64_t Offset) const override;
+ void materializeFrameBaseRegister(MachineBasicBlock *MBB, unsigned BaseReg,
+ int FrameIdx,
+ int64_t Offset) const override;
+ void resolveFrameIndex(MachineInstr &MI, unsigned BaseReg,
+ int64_t Offset) const override;