X-Git-Url: http://plrg.eecs.uci.edu/git/?a=blobdiff_plain;f=lib%2FTarget%2FARM%2FARMInstrInfo.h;h=90f34ea08401397a6d2f97d0f49b916e8d5d254a;hb=44c8b64aac12141f7b5f84ff971375836c797bc3;hp=ea8947d2f63f76c42bc13d84a9e815cb9d234c59;hpb=34a0fa362dde63cf9adf5917ab2ee2c2b7dd2179;p=oota-llvm.git diff --git a/lib/Target/ARM/ARMInstrInfo.h b/lib/Target/ARM/ARMInstrInfo.h index ea8947d2f63..90f34ea0840 100644 --- a/lib/Target/ARM/ARMInstrInfo.h +++ b/lib/Target/ARM/ARMInstrInfo.h @@ -1,4 +1,4 @@ -//===- ARMInstrInfo.h - ARM Instruction Information -------------*- C++ -*-===// +//===-- ARMInstrInfo.h - ARM Instruction Information ------------*- C++ -*-===// // // The LLVM Compiler Infrastructure // @@ -11,263 +11,36 @@ // //===----------------------------------------------------------------------===// -#ifndef ARMINSTRUCTIONINFO_H -#define ARMINSTRUCTIONINFO_H +#ifndef LLVM_LIB_TARGET_ARM_ARMINSTRINFO_H +#define LLVM_LIB_TARGET_ARM_ARMINSTRINFO_H -#include "llvm/Target/TargetInstrInfo.h" +#include "ARMBaseInstrInfo.h" #include "ARMRegisterInfo.h" -#include "ARM.h" namespace llvm { class ARMSubtarget; -/// ARMII - This namespace holds all of the target specific flags that -/// instruction info tracks. -/// -namespace ARMII { - enum { - //===------------------------------------------------------------------===// - // Instruction Flags. - - //===------------------------------------------------------------------===// - // This four-bit field describes the addressing mode used. - - AddrModeMask = 0xf, - AddrModeNone = 0, - AddrMode1 = 1, - AddrMode2 = 2, - AddrMode3 = 3, - AddrMode4 = 4, - AddrMode5 = 5, - AddrMode6 = 6, - AddrModeT1_1 = 7, - AddrModeT1_2 = 8, - AddrModeT1_4 = 9, - AddrModeT1_s = 10, // i8 * 4 for pc and sp relative data - AddrModeT2_i12 = 11, - AddrModeT2_i8 = 12, - AddrModeT2_so = 13, - AddrModeT2_pc = 14, // +/- i12 for pc relative data - AddrModeT2_i8s4 = 15, // i8 * 4 - - // Size* - Flags to keep track of the size of an instruction. - SizeShift = 4, - SizeMask = 7 << SizeShift, - SizeSpecial = 1, // 0 byte pseudo or special case. - Size8Bytes = 2, - Size4Bytes = 3, - Size2Bytes = 4, - - // IndexMode - Unindex, pre-indexed, or post-indexed. Only valid for load - // and store ops - IndexModeShift = 7, - IndexModeMask = 3 << IndexModeShift, - IndexModePre = 1, - IndexModePost = 2, - - //===------------------------------------------------------------------===// - // Instruction encoding formats. - // - FormShift = 9, - FormMask = 0x3f << FormShift, - - // Pseudo instructions - Pseudo = 0 << FormShift, - - // Multiply instructions - MulFrm = 1 << FormShift, - - // Branch instructions - BrFrm = 2 << FormShift, - BrMiscFrm = 3 << FormShift, - - // Data Processing instructions - DPFrm = 4 << FormShift, - DPSoRegFrm = 5 << FormShift, - - // Load and Store - LdFrm = 6 << FormShift, - StFrm = 7 << FormShift, - LdMiscFrm = 8 << FormShift, - StMiscFrm = 9 << FormShift, - LdStMulFrm = 10 << FormShift, - - // Miscellaneous arithmetic instructions - ArithMiscFrm = 11 << FormShift, - - // Extend instructions - ExtFrm = 12 << FormShift, - - // VFP formats - VFPUnaryFrm = 13 << FormShift, - VFPBinaryFrm = 14 << FormShift, - VFPConv1Frm = 15 << FormShift, - VFPConv2Frm = 16 << FormShift, - VFPConv3Frm = 17 << FormShift, - VFPConv4Frm = 18 << FormShift, - VFPConv5Frm = 19 << FormShift, - VFPLdStFrm = 20 << FormShift, - VFPLdStMulFrm = 21 << FormShift, - VFPMiscFrm = 22 << FormShift, - - // Thumb format - ThumbFrm = 23 << FormShift, - - // NEON format - NEONFrm = 24 << FormShift, - NEONGetLnFrm = 25 << FormShift, - NEONSetLnFrm = 26 << FormShift, - NEONDupFrm = 27 << FormShift, - - //===------------------------------------------------------------------===// - // Misc flags. - - // UnaryDP - Indicates this is a unary data processing instruction, i.e. - // it doesn't have a Rn operand. - UnaryDP = 1 << 15, - - // Xform16Bit - Indicates this Thumb2 instruction may be transformed into - // a 16-bit Thumb instruction if certain conditions are met. - Xform16Bit = 1 << 16, - - //===------------------------------------------------------------------===// - // Field shifts - such shifts are used to set field while generating - // machine instructions. - M_BitShift = 5, - ShiftImmShift = 5, - ShiftShift = 7, - N_BitShift = 7, - ImmHiShift = 8, - SoRotImmShift = 8, - RegRsShift = 8, - ExtRotImmShift = 10, - RegRdLoShift = 12, - RegRdShift = 12, - RegRdHiShift = 16, - RegRnShift = 16, - S_BitShift = 20, - W_BitShift = 21, - AM3_I_BitShift = 22, - D_BitShift = 22, - U_BitShift = 23, - P_BitShift = 24, - I_BitShift = 25, - CondShift = 28 - }; -} - -class ARMBaseInstrInfo : public TargetInstrInfoImpl { -protected: - // Can be only subclassed. - explicit ARMBaseInstrInfo(const ARMSubtarget &STI); -public: - virtual MachineInstr *convertToThreeAddress(MachineFunction::iterator &MFI, - MachineBasicBlock::iterator &MBBI, - LiveVariables *LV) const; - - virtual const ARMBaseRegisterInfo &getRegisterInfo() const =0; - - // Branch analysis. - virtual bool AnalyzeBranch(MachineBasicBlock &MBB, MachineBasicBlock *&TBB, - MachineBasicBlock *&FBB, - SmallVectorImpl &Cond, - bool AllowModify) const; - virtual unsigned RemoveBranch(MachineBasicBlock &MBB) const; - virtual unsigned InsertBranch(MachineBasicBlock &MBB, MachineBasicBlock *TBB, - MachineBasicBlock *FBB, - const SmallVectorImpl &Cond) const; - - virtual bool BlockHasNoFallThrough(const MachineBasicBlock &MBB) const; - virtual - bool ReverseBranchCondition(SmallVectorImpl &Cond) const; - - // Predication support. - virtual bool isPredicated(const MachineInstr *MI) const; - - ARMCC::CondCodes getPredicate(const MachineInstr *MI) const { - int PIdx = MI->findFirstPredOperandIdx(); - return PIdx != -1 ? (ARMCC::CondCodes)MI->getOperand(PIdx).getImm() - : ARMCC::AL; - } - - virtual - bool PredicateInstruction(MachineInstr *MI, - const SmallVectorImpl &Pred) const; - - virtual - bool SubsumesPredicate(const SmallVectorImpl &Pred1, - const SmallVectorImpl &Pred2) const; - - virtual bool DefinesPredicate(MachineInstr *MI, - std::vector &Pred) const; - - /// GetInstSize - Returns the size of the specified MachineInstr. - /// - virtual unsigned GetInstSizeInBytes(const MachineInstr* MI) const; - - /// Return true if the instruction is a register to register move and return - /// the source and dest operands and their sub-register indices by reference. - virtual bool isMoveInstr(const MachineInstr &MI, - unsigned &SrcReg, unsigned &DstReg, - unsigned &SrcSubIdx, unsigned &DstSubIdx) const; - - virtual unsigned isLoadFromStackSlot(const MachineInstr *MI, - int &FrameIndex) const; - virtual unsigned isStoreToStackSlot(const MachineInstr *MI, - int &FrameIndex) const; - - virtual bool copyRegToReg(MachineBasicBlock &MBB, - MachineBasicBlock::iterator I, - unsigned DestReg, unsigned SrcReg, - const TargetRegisterClass *DestRC, - const TargetRegisterClass *SrcRC) const; - virtual void storeRegToStackSlot(MachineBasicBlock &MBB, - MachineBasicBlock::iterator MBBI, - unsigned SrcReg, bool isKill, int FrameIndex, - const TargetRegisterClass *RC) const; - - virtual void storeRegToAddr(MachineFunction &MF, unsigned SrcReg, bool isKill, - SmallVectorImpl &Addr, - const TargetRegisterClass *RC, - SmallVectorImpl &NewMIs) const; - - virtual void loadRegFromStackSlot(MachineBasicBlock &MBB, - MachineBasicBlock::iterator MBBI, - unsigned DestReg, int FrameIndex, - const TargetRegisterClass *RC) const; - - virtual void loadRegFromAddr(MachineFunction &MF, unsigned DestReg, - SmallVectorImpl &Addr, - const TargetRegisterClass *RC, - SmallVectorImpl &NewMIs) const; - - virtual bool canFoldMemoryOperand(const MachineInstr *MI, - const SmallVectorImpl &Ops) const; - - virtual MachineInstr* foldMemoryOperandImpl(MachineFunction &MF, - MachineInstr* MI, - const SmallVectorImpl &Ops, - int FrameIndex) const; - - virtual MachineInstr* foldMemoryOperandImpl(MachineFunction &MF, - MachineInstr* MI, - const SmallVectorImpl &Ops, - MachineInstr* LoadMI) const; -}; - class ARMInstrInfo : public ARMBaseInstrInfo { ARMRegisterInfo RI; public: explicit ARMInstrInfo(const ARMSubtarget &STI); + /// getNoopForMachoTarget - Return the noop instruction to use for a noop. + void getNoopForMachoTarget(MCInst &NopInst) const override; + + // Return the non-pre/post incrementing version of 'Opc'. Return 0 + // if there is not such an opcode. + unsigned getUnindexedOpcode(unsigned Opc) const override; + /// 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 ARMRegisterInfo &getRegisterInfo() const { return RI; } + const ARMRegisterInfo &getRegisterInfo() const override { return RI; } - void reMaterialize(MachineBasicBlock &MBB, MachineBasicBlock::iterator MI, - unsigned DestReg, const MachineInstr *Orig) const; +private: + void expandLoadStackGuard(MachineBasicBlock::iterator MI, + Reloc::Model RM) const override; }; }