diff options
Diffstat (limited to 'contrib/llvm/lib/Target/ARM/ARMBaseInstrInfo.h')
| -rw-r--r-- | contrib/llvm/lib/Target/ARM/ARMBaseInstrInfo.h | 161 |
1 files changed, 21 insertions, 140 deletions
diff --git a/contrib/llvm/lib/Target/ARM/ARMBaseInstrInfo.h b/contrib/llvm/lib/Target/ARM/ARMBaseInstrInfo.h index 507e897..0f9f321 100644 --- a/contrib/llvm/lib/Target/ARM/ARMBaseInstrInfo.h +++ b/contrib/llvm/lib/Target/ARM/ARMBaseInstrInfo.h @@ -27,146 +27,6 @@ namespace llvm { class ARMSubtarget; class ARMBaseRegisterInfo; -/// 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 = 0x1f, // The AddrMode enums are declared in ARMBaseInfo.h - - // IndexMode - Unindex, pre-indexed, or post-indexed are valid for load - // and store ops only. Generic "updating" flag is used for ld/st multiple. - // The index mode enums are declared in ARMBaseInfo.h - IndexModeShift = 5, - IndexModeMask = 3 << IndexModeShift, - - //===------------------------------------------------------------------===// - // Instruction encoding formats. - // - FormShift = 7, - 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, - - LdStExFrm = 11 << FormShift, - - // Miscellaneous arithmetic instructions - ArithMiscFrm = 12 << FormShift, - SatFrm = 13 << FormShift, - - // Extend instructions - ExtFrm = 14 << FormShift, - - // VFP formats - VFPUnaryFrm = 15 << FormShift, - VFPBinaryFrm = 16 << FormShift, - VFPConv1Frm = 17 << FormShift, - VFPConv2Frm = 18 << FormShift, - VFPConv3Frm = 19 << FormShift, - VFPConv4Frm = 20 << FormShift, - VFPConv5Frm = 21 << FormShift, - VFPLdStFrm = 22 << FormShift, - VFPLdStMulFrm = 23 << FormShift, - VFPMiscFrm = 24 << FormShift, - - // Thumb format - ThumbFrm = 25 << FormShift, - - // Miscelleaneous format - MiscFrm = 26 << FormShift, - - // NEON formats - NGetLnFrm = 27 << FormShift, - NSetLnFrm = 28 << FormShift, - NDupFrm = 29 << FormShift, - NLdStFrm = 30 << FormShift, - N1RegModImmFrm= 31 << FormShift, - N2RegFrm = 32 << FormShift, - NVCVTFrm = 33 << FormShift, - NVDupLnFrm = 34 << FormShift, - N2RegVShLFrm = 35 << FormShift, - N2RegVShRFrm = 36 << FormShift, - N3RegFrm = 37 << FormShift, - N3RegVShFrm = 38 << FormShift, - NVExtFrm = 39 << FormShift, - NVMulSLFrm = 40 << FormShift, - NVTBLFrm = 41 << FormShift, - - //===------------------------------------------------------------------===// - // Misc flags. - - // UnaryDP - Indicates this is a unary data processing instruction, i.e. - // it doesn't have a Rn operand. - UnaryDP = 1 << 13, - - // Xform16Bit - Indicates this Thumb2 instruction may be transformed into - // a 16-bit Thumb instruction if certain conditions are met. - Xform16Bit = 1 << 14, - - //===------------------------------------------------------------------===// - // Code domain. - DomainShift = 15, - DomainMask = 7 << DomainShift, - DomainGeneral = 0 << DomainShift, - DomainVFP = 1 << DomainShift, - DomainNEON = 2 << DomainShift, - DomainNEONA8 = 4 << DomainShift, - - //===------------------------------------------------------------------===// - // Field shifts - such shifts are used to set field while generating - // machine instructions. - // - // FIXME: This list will need adjusting/fixing as the MC code emitter - // takes shape and the ARMCodeEmitter.cpp bits go away. - ShiftTypeShift = 4, - - 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 ARMGenInstrInfo { const ARMSubtarget &Subtarget; @@ -241,6 +101,10 @@ public: int &FrameIndex) const; virtual unsigned isStoreToStackSlot(const MachineInstr *MI, int &FrameIndex) const; + virtual unsigned isLoadFromStackSlotPostFE(const MachineInstr *MI, + int &FrameIndex) const; + virtual unsigned isStoreToStackSlotPostFE(const MachineInstr *MI, + int &FrameIndex) const; virtual void copyPhysReg(MachineBasicBlock &MBB, MachineBasicBlock::iterator I, DebugLoc DL, @@ -259,6 +123,8 @@ public: const TargetRegisterClass *RC, const TargetRegisterInfo *TRI) const; + virtual bool expandPostRAPseudo(MachineBasicBlock::iterator MI) const; + virtual MachineInstr *emitFrameIndexDebugValue(MachineFunction &MF, int FrameIx, uint64_t Offset, @@ -346,6 +212,12 @@ public: int getOperandLatency(const InstrItineraryData *ItinData, SDNode *DefNode, unsigned DefIdx, SDNode *UseNode, unsigned UseIdx) const; + + /// VFP/NEON execution domains. + std::pair<uint16_t, uint16_t> + getExecutionDomain(const MachineInstr *MI) const; + void setExecutionDomain(MachineInstr *MI, unsigned Domain) const; + private: int getVLDMDefCycle(const InstrItineraryData *ItinData, const MCInstrDesc &DefMCID, @@ -382,6 +254,9 @@ private: bool hasLowDefLatency(const InstrItineraryData *ItinData, const MachineInstr *DefMI, unsigned DefIdx) const; + /// verifyInstruction - Perform target specific instruction verification. + bool verifyInstruction(const MachineInstr *MI, StringRef &ErrInfo) const; + private: /// Modeling special VFP / NEON fp MLA / MLS hazards. @@ -464,6 +339,12 @@ ARMCC::CondCodes getInstrPredicate(const MachineInstr *MI, unsigned &PredReg); int getMatchingCondBranchOpcode(int Opc); + +/// Map pseudo instructions that imply an 'S' bit onto real opcodes. Whether +/// the instruction is encoded with an 'S' bit is determined by the optional +/// CPSR def operand. +unsigned convertAddSubFlagsOpcode(unsigned OldOpc); + /// emitARMRegPlusImmediate / emitT2RegPlusImmediate - Emits a series of /// instructions to materializea destreg = basereg + immediate in ARM / Thumb2 /// code. |
