#ifndef X86REGISTERINFO_H
#define X86REGISTERINFO_H
-#include "llvm/ADT/DenseMap.h"
-#include "llvm/ADT/SmallVector.h"
#include "llvm/Target/TargetRegisterInfo.h"
#include "X86GenRegisterInfo.h.inc"
/// these indices must be kept in sync with the class indices in the
/// X86RegisterInfo.td file.
enum SubregIndex {
- SUBREG_8BIT = 1, SUBREG_16BIT = 2, SUBREG_32BIT = 3
+ SUBREG_8BIT = 1, SUBREG_8BIT_HI = 2, SUBREG_16BIT = 3, SUBREG_32BIT = 4
};
}
/// Code Generation virtual methods...
///
+
+ /// getMatchingSuperRegClass - Return a subclass of the specified register
+ /// class A so that each register in it has a sub-register of the
+ /// specified sub-register index which is in the specified register class B.
+ virtual const TargetRegisterClass *
+ getMatchingSuperRegClass(const TargetRegisterClass *A,
+ const TargetRegisterClass *B, unsigned Idx) const;
+
+ /// getPointerRegClass - Returns a TargetRegisterClass used for pointer
+ /// values.
+ const TargetRegisterClass *getPointerRegClass(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
+ /// between a two registers of the specified class.
const TargetRegisterClass *
getCrossCopyRegClass(const TargetRegisterClass *RC) const;
bool hasFP(const MachineFunction &MF) const;
+ bool needsStackRealignment(const MachineFunction &MF) const;
+
bool hasReservedCallFrame(MachineFunction &MF) const;
+ bool hasReservedSpillSlot(MachineFunction &MF, unsigned Reg,
+ int &FrameIdx) const;
+
void eliminateCallFramePseudoInstr(MachineFunction &MF,
MachineBasicBlock &MBB,
MachineBasicBlock::iterator MI) const;
void eliminateFrameIndex(MachineBasicBlock::iterator MI,
int SPAdj, RegScavenger *RS = NULL) const;
- void processFunctionBeforeFrameFinalized(MachineFunction &MF) const;
+ void processFunctionBeforeCalleeSavedScan(MachineFunction &MF,
+ RegScavenger *RS = NULL) const;
+ void emitCalleeSavedFrameMoves(MachineFunction &MF, unsigned LabelId,
+ unsigned FramePtr) const;
void emitPrologue(MachineFunction &MF) const;
void emitEpilogue(MachineFunction &MF, MachineBasicBlock &MBB) 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);
+// e.g. getX86SubSuperRegister(X86::EAX, EVT::i16) return X86:AX
+unsigned getX86SubSuperRegister(unsigned, EVT, bool High=false);
} // End llvm namespace