///
unsigned FramePtr;
+ /// BasePtr - X86 physical register used as a base ptr in complex stack
+ /// frames. I.e., when we need a 3rd base, not just SP and FP, due to
+ /// variable size stack objects.
+ unsigned BasePtr;
+
public:
X86RegisterInfo(X86TargetMachine &tm, const TargetInstrInfo &tii);
- /// getX86RegNum - Returns the native X86 register number for the given LLVM
- /// register identifier.
- static unsigned getX86RegNum(unsigned RegNo);
-
// FIXME: This should be tablegen'd like getDwarfRegNum is
int getSEHRegNum(unsigned i) const;
/// getPointerRegClass - Returns a TargetRegisterClass used for pointer
/// values.
- const TargetRegisterClass *getPointerRegClass(unsigned Kind = 0) const;
+ const TargetRegisterClass *
+ getPointerRegClass(const MachineFunction &MF, unsigned Kind = 0) const;
/// getCrossCopyRegClass - Returns a legal register class to copy a register
/// in the specified class to or from. Returns NULL if it is possible to copy
/// callee-save registers on this target.
const uint16_t *getCalleeSavedRegs(const MachineFunction* MF = 0) const;
const uint32_t *getCallPreservedMask(CallingConv::ID) const;
+ const uint32_t *getNoPreservedMask() const;
/// getReservedRegs - Returns a bitset indexed by physical register number
/// indicating if a register is a special register that has particular uses and
/// register scavenger to determine what registers are free.
BitVector getReservedRegs(const MachineFunction &MF) const;
+ bool hasBasePointer(const MachineFunction &MF) const;
+
bool canRealignStack(const MachineFunction &MF) const;
bool needsStackRealignment(const MachineFunction &MF) const;
// Debug information queries.
unsigned getFrameRegister(const MachineFunction &MF) const;
unsigned getStackRegister() const { return StackPtr; }
+ unsigned getBaseRegister() const { return BasePtr; }
// FIXME: Move to FrameInfok
unsigned getSlotSize() const { return SlotSize; }
// getX86SubSuperRegister - X86 utility function. It returns the sub or super
// register of a specific X86 register.
-// e.g. getX86SubSuperRegister(X86::EAX, EVT::i16) return X86:AX
-unsigned getX86SubSuperRegister(unsigned, EVT, bool High=false);
+// e.g. getX86SubSuperRegister(X86::EAX, MVT::i16) return X86:AX
+unsigned getX86SubSuperRegister(unsigned, MVT::SimpleValueType, bool High=false);
} // End llvm namespace