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Diffstat (limited to 'contrib/llvm/lib/Target/ARM/Thumb2InstrInfo.h')
-rw-r--r-- | contrib/llvm/lib/Target/ARM/Thumb2InstrInfo.h | 78 |
1 files changed, 78 insertions, 0 deletions
diff --git a/contrib/llvm/lib/Target/ARM/Thumb2InstrInfo.h b/contrib/llvm/lib/Target/ARM/Thumb2InstrInfo.h new file mode 100644 index 0000000..f2637d7 --- /dev/null +++ b/contrib/llvm/lib/Target/ARM/Thumb2InstrInfo.h @@ -0,0 +1,78 @@ +//===- Thumb2InstrInfo.h - Thumb-2 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 Thumb-2 implementation of the TargetInstrInfo class. +// +//===----------------------------------------------------------------------===// + +#ifndef THUMB2INSTRUCTIONINFO_H +#define THUMB2INSTRUCTIONINFO_H + +#include "llvm/Target/TargetInstrInfo.h" +#include "ARM.h" +#include "ARMInstrInfo.h" +#include "Thumb2RegisterInfo.h" + +namespace llvm { +class ARMSubtarget; +class ScheduleHazardRecognizer; + +class Thumb2InstrInfo : public ARMBaseInstrInfo { + Thumb2RegisterInfo RI; +public: + explicit Thumb2InstrInfo(const ARMSubtarget &STI); + + // Return the non-pre/post incrementing version of 'Opc'. Return 0 + // if there is not such an opcode. + unsigned getUnindexedOpcode(unsigned Opc) const; + + void ReplaceTailWithBranchTo(MachineBasicBlock::iterator Tail, + MachineBasicBlock *NewDest) const; + + bool isLegalToSplitMBBAt(MachineBasicBlock &MBB, + MachineBasicBlock::iterator MBBI) const; + + void copyPhysReg(MachineBasicBlock &MBB, + MachineBasicBlock::iterator I, DebugLoc DL, + unsigned DestReg, unsigned SrcReg, + bool KillSrc) const; + + void storeRegToStackSlot(MachineBasicBlock &MBB, + MachineBasicBlock::iterator MBBI, + unsigned SrcReg, bool isKill, int FrameIndex, + const TargetRegisterClass *RC, + const TargetRegisterInfo *TRI) const; + + void loadRegFromStackSlot(MachineBasicBlock &MBB, + MachineBasicBlock::iterator MBBI, + unsigned DestReg, int FrameIndex, + const TargetRegisterClass *RC, + const TargetRegisterInfo *TRI) const; + + /// scheduleTwoAddrSource - Schedule the copy / re-mat of the source of the + /// two-addrss instruction inserted by two-address pass. + void scheduleTwoAddrSource(MachineInstr *SrcMI, MachineInstr *UseMI, + const TargetRegisterInfo &TRI) const; + + /// 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). + /// + const Thumb2RegisterInfo &getRegisterInfo() const { return RI; } +}; + +/// getITInstrPredicate - Valid only in Thumb2 mode. This function is identical +/// to llvm::getInstrPredicate except it returns AL for conditional branch +/// instructions which are "predicated", but are not in IT blocks. +ARMCC::CondCodes getITInstrPredicate(const MachineInstr *MI, unsigned &PredReg); + + +} + +#endif // THUMB2INSTRUCTIONINFO_H |