#define X86REGISTERINFO_H
#include "llvm/Target/MRegisterInfo.h"
-
-class llvm::Type;
-
#include "X86GenRegisterInfo.h.inc"
namespace llvm {
+ class Type;
+ class TargetInstrInfo;
struct X86RegisterInfo : public X86GenRegisterInfo {
- X86RegisterInfo();
+ const TargetInstrInfo &TII;
+ X86RegisterInfo(const TargetInstrInfo &tii);
/// Code Generation virtual methods...
void storeRegToStackSlot(MachineBasicBlock &MBB,
/// folding and return true, otherwise it should return false. If it folds
/// the instruction, it is likely that the MachineInstruction the iterator
/// references has been changed.
- virtual MachineInstr* foldMemoryOperand(MachineInstr* MI,
- unsigned OpNum,
- int FrameIndex) const;
+ MachineInstr* foldMemoryOperand(MachineInstr* MI,
+ unsigned OpNum,
+ int FrameIndex) const;
+
+ /// getCalleeSaveRegs - Return a null-terminated list of all of the
+ /// callee-save registers on this target.
+ const unsigned *getCalleeSaveRegs() const;
+ /// getCalleeSaveRegClasses - Return a null-terminated list of the preferred
+ /// register classes to spill each callee-saved register with. The order and
+ /// length of this list match the getCalleeSaveRegs() list.
+ const TargetRegisterClass* const* getCalleeSaveRegClasses() const;
void eliminateCallFramePseudoInstr(MachineFunction &MF,
MachineBasicBlock &MBB,
void emitPrologue(MachineFunction &MF) const;
void emitEpilogue(MachineFunction &MF, MachineBasicBlock &MBB) const;
+
+ // Debug information queries.
+ unsigned getRARegister() const;
+ unsigned getFrameRegister(MachineFunction &MF) const;
};
+// getX86SubSuperRegister - X86 utility function. It returns the sub or super
+// register of a specific X86 register.
+// e.g. getX86SubSuperRegister(X86::EAX, MVT::i16) return X86:AX
+unsigned getX86SubSuperRegister(unsigned, MVT::ValueType, bool High=false);
+
} // End llvm namespace
#endif