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Diffstat (limited to 'contrib/llvm/lib/Target/MSP430/MSP430InstrInfo.h')
-rw-r--r-- | contrib/llvm/lib/Target/MSP430/MSP430InstrInfo.h | 92 |
1 files changed, 92 insertions, 0 deletions
diff --git a/contrib/llvm/lib/Target/MSP430/MSP430InstrInfo.h b/contrib/llvm/lib/Target/MSP430/MSP430InstrInfo.h new file mode 100644 index 000000000000..ad2b8cc7cd45 --- /dev/null +++ b/contrib/llvm/lib/Target/MSP430/MSP430InstrInfo.h @@ -0,0 +1,92 @@ +//===-- MSP430InstrInfo.h - MSP430 Instruction Information ------*- C++ -*-===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// +// +// This file contains the MSP430 implementation of the TargetInstrInfo class. +// +//===----------------------------------------------------------------------===// + +#ifndef LLVM_TARGET_MSP430INSTRINFO_H +#define LLVM_TARGET_MSP430INSTRINFO_H + +#include "MSP430RegisterInfo.h" +#include "llvm/Target/TargetInstrInfo.h" + +#define GET_INSTRINFO_HEADER +#include "MSP430GenInstrInfo.inc" + +namespace llvm { + +class MSP430TargetMachine; + +/// 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; + virtual void anchor(); +public: + explicit MSP430InstrInfo(MSP430TargetMachine &TM); + + /// getRegisterInfo - TargetInstrInfo is a superset of MRegister info. As + /// such, whenever a client has an instance of instruction info, it should + /// always be able to get register info as well (through this method). + /// + virtual const TargetRegisterInfo &getRegisterInfo() const { return RI; } + + 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 TargetRegisterInfo *TRI) const; + virtual void loadRegFromStackSlot(MachineBasicBlock &MBB, + MachineBasicBlock::iterator MI, + unsigned DestReg, int FrameIdx, + 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; + +}; + +} + +#endif |