#include "llvm/Target/TargetInstrInfo.h"
#include "MSP430RegisterInfo.h"
+#define GET_INSTRINFO_HEADER
+#include "MSP430GenInstrInfo.inc"
+
namespace llvm {
class MSP430TargetMachine;
-class MSP430InstrInfo : public TargetInstrInfoImpl {
+/// MSP430II - This namespace holds all of the target specific flags that
+/// instruction info tracks.
+///
+namespace MSP430II {
+ enum {
+ SizeShift = 2,
+ SizeMask = 7 << SizeShift,
+
+ SizeUnknown = 0 << SizeShift,
+ SizeSpecial = 1 << SizeShift,
+ Size2Bytes = 2 << SizeShift,
+ Size4Bytes = 3 << SizeShift,
+ Size6Bytes = 4 << SizeShift
+ };
+}
+
+class MSP430InstrInfo : public MSP430GenInstrInfo {
const MSP430RegisterInfo RI;
MSP430TargetMachine &TM;
public:
///
virtual const TargetRegisterInfo &getRegisterInfo() const { return RI; }
- bool copyRegToReg(MachineBasicBlock &MBB, MachineBasicBlock::iterator I,
- unsigned DestReg, unsigned SrcReg,
- const TargetRegisterClass *DestRC,
- const TargetRegisterClass *SrcRC) const;
-
- bool isMoveInstr(const MachineInstr& MI,
- unsigned &SrcReg, unsigned &DstReg,
- unsigned &SrcSubIdx, unsigned &DstSubIdx) const;
+ void copyPhysReg(MachineBasicBlock &MBB,
+ MachineBasicBlock::iterator I, DebugLoc DL,
+ unsigned DestReg, unsigned SrcReg,
+ bool KillSrc) const;
virtual void storeRegToStackSlot(MachineBasicBlock &MBB,
MachineBasicBlock::iterator MI,
unsigned SrcReg, bool isKill,
int FrameIndex,
- const TargetRegisterClass *RC) const;
+ const TargetRegisterClass *RC,
+ const TargetRegisterInfo *TRI) const;
virtual void loadRegFromStackSlot(MachineBasicBlock &MBB,
MachineBasicBlock::iterator MI,
unsigned DestReg, int FrameIdx,
- const TargetRegisterClass *RC) const;
-
- virtual bool spillCalleeSavedRegisters(MachineBasicBlock &MBB,
- MachineBasicBlock::iterator MI,
- const std::vector<CalleeSavedInfo> &CSI) const;
- virtual bool restoreCalleeSavedRegisters(MachineBasicBlock &MBB,
- MachineBasicBlock::iterator MI,
- const std::vector<CalleeSavedInfo> &CSI) const;
+ const TargetRegisterClass *RC,
+ const TargetRegisterInfo *TRI) const;
+
+ unsigned GetInstSizeInBytes(const MachineInstr *MI) const;
+
+ // Branch folding goodness
+ bool ReverseBranchCondition(SmallVectorImpl<MachineOperand> &Cond) const;
+ bool isUnpredicatedTerminator(const MachineInstr *MI) const;
+ bool AnalyzeBranch(MachineBasicBlock &MBB,
+ MachineBasicBlock *&TBB, MachineBasicBlock *&FBB,
+ SmallVectorImpl<MachineOperand> &Cond,
+ bool AllowModify) const;
+
+ unsigned RemoveBranch(MachineBasicBlock &MBB) const;
+ unsigned InsertBranch(MachineBasicBlock &MBB, MachineBasicBlock *TBB,
+ MachineBasicBlock *FBB,
+ const SmallVectorImpl<MachineOperand> &Cond,
+ DebugLoc DL) const;
};