X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=lib%2FTarget%2FMips%2FMipsISelLowering.h;h=c1574fac578ee7678dc445c3417eca961661e13e;hb=f67852f012659099832f082dc5ce79c29346f2a3;hp=43f97e89a7bf7fa912892e2cb440f69a004f4a1e;hpb=e90a3bcae1cd936aa760cffe5607266279b210d1;p=oota-llvm.git diff --git a/lib/Target/Mips/MipsISelLowering.h b/lib/Target/Mips/MipsISelLowering.h index 43f97e89a7b..632eefd6009 100644 --- a/lib/Target/Mips/MipsISelLowering.h +++ b/lib/Target/Mips/MipsISelLowering.h @@ -12,18 +12,22 @@ // //===----------------------------------------------------------------------===// -#ifndef MipsISELLOWERING_H -#define MipsISELLOWERING_H +#ifndef LLVM_LIB_TARGET_MIPS_MIPSISELLOWERING_H +#define LLVM_LIB_TARGET_MIPS_MIPSISELLOWERING_H +#include "MCTargetDesc/MipsABIInfo.h" +#include "MCTargetDesc/MipsBaseInfo.h" #include "Mips.h" -#include "MipsSubtarget.h" #include "llvm/CodeGen/CallingConvLower.h" #include "llvm/CodeGen/SelectionDAG.h" +#include "llvm/IR/Function.h" #include "llvm/Target/TargetLowering.h" +#include +#include namespace llvm { namespace MipsISD { - enum NodeType { + enum NodeType : unsigned { // Start the numbering from where ISD NodeType finishes. FIRST_NUMBER = ISD::BUILTIN_OP_END, @@ -57,12 +61,25 @@ namespace llvm { CMovFP_T, CMovFP_F, - // Floating Point Rounding - FPRound, + // FP-to-int truncation node. + TruncIntFP, // Return Ret, + EH_RETURN, + + // Node used to extract integer from accumulator. + MFHI, + MFLO, + + // Node used to insert integers to accumulator. + MTLOHI, + + // Mult nodes. + Mult, + Multu, + // MAdd/Sub nodes MAdd, MAddu, @@ -72,6 +89,8 @@ namespace llvm { // DivRem(u) DivRem, DivRemU, + DivRem16, + DivRemU16, BuildPairF64, ExtractElementF64, @@ -126,6 +145,55 @@ namespace llvm { MSUB_DSP, MSUBU_DSP, + // DSP shift nodes. + SHLL_DSP, + SHRA_DSP, + SHRL_DSP, + + // DSP setcc and select_cc nodes. + SETCC_DSP, + SELECT_CC_DSP, + + // Vector comparisons. + // These take a vector and return a boolean. + VALL_ZERO, + VANY_ZERO, + VALL_NONZERO, + VANY_NONZERO, + + // These take a vector and return a vector bitmask. + VCEQ, + VCLE_S, + VCLE_U, + VCLT_S, + VCLT_U, + + // Element-wise vector max/min. + VSMAX, + VSMIN, + VUMAX, + VUMIN, + + // Vector Shuffle with mask as an operand + VSHF, // Generic shuffle + SHF, // 4-element set shuffle. + ILVEV, // Interleave even elements + ILVOD, // Interleave odd elements + ILVL, // Interleave left elements + ILVR, // Interleave right elements + PCKEV, // Pack even elements + PCKOD, // Pack odd elements + + // Vector Lane Copy + INSVE, // Copy element from one vector to another + + // Combined (XOR (OR $a, $b), -1) + VNOR, + + // Extended vector element extraction + VEXTRACT_SEXT_ELT, + VEXTRACT_ZEXT_ELT, + // Load/Store Left/Right nodes. LWL = ISD::FIRST_TARGET_MEMORY_OPCODE, LWR, @@ -142,247 +210,367 @@ namespace llvm { // TargetLowering Implementation //===--------------------------------------------------------------------===// class MipsFunctionInfo; + class MipsSubtarget; + class MipsCCState; class MipsTargetLowering : public TargetLowering { + bool isMicroMips; public: - explicit MipsTargetLowering(MipsTargetMachine &TM); + explicit MipsTargetLowering(const MipsTargetMachine &TM, + const MipsSubtarget &STI); + + static const MipsTargetLowering *create(const MipsTargetMachine &TM, + const MipsSubtarget &STI); - virtual MVT getShiftAmountTy(EVT LHSTy) const { return MVT::i32; } + /// createFastISel - This method returns a target specific FastISel object, + /// or null if the target does not support "fast" ISel. + FastISel *createFastISel(FunctionLoweringInfo &funcInfo, + const TargetLibraryInfo *libInfo) const override; - virtual bool allowsUnalignedMemoryAccesses (EVT VT) const; + MVT getScalarShiftAmountTy(const DataLayout &, EVT) const override { + return MVT::i32; + } - virtual void LowerOperationWrapper(SDNode *N, - SmallVectorImpl &Results, - SelectionDAG &DAG) const; + void LowerOperationWrapper(SDNode *N, + SmallVectorImpl &Results, + SelectionDAG &DAG) const override; /// LowerOperation - Provide custom lowering hooks for some operations. - virtual SDValue LowerOperation(SDValue Op, SelectionDAG &DAG) const; + SDValue LowerOperation(SDValue Op, SelectionDAG &DAG) const override; /// ReplaceNodeResults - Replace the results of node with an illegal result /// type with new values built out of custom code. /// - virtual void ReplaceNodeResults(SDNode *N, SmallVectorImpl&Results, - SelectionDAG &DAG) const; + void ReplaceNodeResults(SDNode *N, SmallVectorImpl&Results, + SelectionDAG &DAG) const override; /// getTargetNodeName - This method returns the name of a target specific // DAG node. - virtual const char *getTargetNodeName(unsigned Opcode) const; + const char *getTargetNodeName(unsigned Opcode) const override; /// getSetCCResultType - get the ISD::SETCC result ValueType - EVT getSetCCResultType(EVT VT) const; + EVT getSetCCResultType(const DataLayout &DL, LLVMContext &Context, + EVT VT) const override; + + SDValue PerformDAGCombine(SDNode *N, DAGCombinerInfo &DCI) const override; + + MachineBasicBlock * + EmitInstrWithCustomInserter(MachineInstr *MI, + MachineBasicBlock *MBB) const override; + + void HandleByVal(CCState *, unsigned &, unsigned) const override; + + unsigned getRegisterByName(const char* RegName, EVT VT, + SelectionDAG &DAG) const override; + + /// Returns true if a cast between SrcAS and DestAS is a noop. + bool isNoopAddrSpaceCast(unsigned SrcAS, unsigned DestAS) const override { + // Mips doesn't have any special address spaces so we just reserve + // the first 256 for software use (e.g. OpenCL) and treat casts + // between them as noops. + return SrcAS < 256 && DestAS < 256; + } + + protected: + SDValue getGlobalReg(SelectionDAG &DAG, EVT Ty) const; + + // This method creates the following nodes, which are necessary for + // computing a local symbol's address: + // + // (add (load (wrapper $gp, %got(sym)), %lo(sym)) + template + SDValue getAddrLocal(NodeTy *N, SDLoc DL, EVT Ty, SelectionDAG &DAG, + bool IsN32OrN64) const { + unsigned GOTFlag = IsN32OrN64 ? MipsII::MO_GOT_PAGE : MipsII::MO_GOT; + SDValue GOT = DAG.getNode(MipsISD::Wrapper, DL, Ty, getGlobalReg(DAG, Ty), + getTargetNode(N, Ty, DAG, GOTFlag)); + SDValue Load = + DAG.getLoad(Ty, DL, DAG.getEntryNode(), GOT, + MachinePointerInfo::getGOT(DAG.getMachineFunction()), + false, false, false, 0); + unsigned LoFlag = IsN32OrN64 ? MipsII::MO_GOT_OFST : MipsII::MO_ABS_LO; + SDValue Lo = DAG.getNode(MipsISD::Lo, DL, Ty, + getTargetNode(N, Ty, DAG, LoFlag)); + return DAG.getNode(ISD::ADD, DL, Ty, Load, Lo); + } + + // This method creates the following nodes, which are necessary for + // computing a global symbol's address: + // + // (load (wrapper $gp, %got(sym))) + template + SDValue getAddrGlobal(NodeTy *N, SDLoc DL, EVT Ty, SelectionDAG &DAG, + unsigned Flag, SDValue Chain, + const MachinePointerInfo &PtrInfo) const { + SDValue Tgt = DAG.getNode(MipsISD::Wrapper, DL, Ty, getGlobalReg(DAG, Ty), + getTargetNode(N, Ty, DAG, Flag)); + return DAG.getLoad(Ty, DL, Chain, Tgt, PtrInfo, false, false, false, 0); + } + + // This method creates the following nodes, which are necessary for + // computing a global symbol's address in large-GOT mode: + // + // (load (wrapper (add %hi(sym), $gp), %lo(sym))) + template + SDValue getAddrGlobalLargeGOT(NodeTy *N, SDLoc DL, EVT Ty, + SelectionDAG &DAG, unsigned HiFlag, + unsigned LoFlag, SDValue Chain, + const MachinePointerInfo &PtrInfo) const { + SDValue Hi = + DAG.getNode(MipsISD::Hi, DL, Ty, getTargetNode(N, Ty, DAG, HiFlag)); + Hi = DAG.getNode(ISD::ADD, DL, Ty, Hi, getGlobalReg(DAG, Ty)); + SDValue Wrapper = DAG.getNode(MipsISD::Wrapper, DL, Ty, Hi, + getTargetNode(N, Ty, DAG, LoFlag)); + return DAG.getLoad(Ty, DL, Chain, Wrapper, PtrInfo, false, false, false, + 0); + } + + // This method creates the following nodes, which are necessary for + // computing a symbol's address in non-PIC mode: + // + // (add %hi(sym), %lo(sym)) + template + SDValue getAddrNonPIC(NodeTy *N, SDLoc DL, EVT Ty, + SelectionDAG &DAG) const { + SDValue Hi = getTargetNode(N, Ty, DAG, MipsII::MO_ABS_HI); + SDValue Lo = getTargetNode(N, Ty, DAG, MipsII::MO_ABS_LO); + return DAG.getNode(ISD::ADD, DL, Ty, + DAG.getNode(MipsISD::Hi, DL, Ty, Hi), + DAG.getNode(MipsISD::Lo, DL, Ty, Lo)); + } + + // This method creates the following nodes, which are necessary for + // computing a symbol's address using gp-relative addressing: + // + // (add $gp, %gp_rel(sym)) + template + SDValue getAddrGPRel(NodeTy *N, SDLoc DL, EVT Ty, SelectionDAG &DAG) const { + assert(Ty == MVT::i32); + SDValue GPRel = getTargetNode(N, Ty, DAG, MipsII::MO_GPREL); + return DAG.getNode(ISD::ADD, DL, Ty, + DAG.getRegister(Mips::GP, Ty), + DAG.getNode(MipsISD::GPRel, DL, DAG.getVTList(Ty), + GPRel)); + } + + /// This function fills Ops, which is the list of operands that will later + /// be used when a function call node is created. It also generates + /// copyToReg nodes to set up argument registers. + virtual void + getOpndList(SmallVectorImpl &Ops, + std::deque< std::pair > &RegsToPass, + bool IsPICCall, bool GlobalOrExternal, bool InternalLinkage, + bool IsCallReloc, CallLoweringInfo &CLI, SDValue Callee, + SDValue Chain) const; + + protected: + SDValue lowerLOAD(SDValue Op, SelectionDAG &DAG) const; + SDValue lowerSTORE(SDValue Op, SelectionDAG &DAG) const; + + // Subtarget Info + const MipsSubtarget &Subtarget; + // Cache the ABI from the TargetMachine, we use it everywhere. + const MipsABIInfo &ABI; - virtual SDValue PerformDAGCombine(SDNode *N, DAGCombinerInfo &DCI) const; private: + // Create a TargetGlobalAddress node. + SDValue getTargetNode(GlobalAddressSDNode *N, EVT Ty, SelectionDAG &DAG, + unsigned Flag) const; - /// ByValArgInfo - Byval argument information. - struct ByValArgInfo { - unsigned FirstIdx; // Index of the first register used. - unsigned NumRegs; // Number of registers used for this argument. - unsigned Address; // Offset of the stack area used to pass this argument. + // Create a TargetExternalSymbol node. + SDValue getTargetNode(ExternalSymbolSDNode *N, EVT Ty, SelectionDAG &DAG, + unsigned Flag) const; - ByValArgInfo() : FirstIdx(0), NumRegs(0), Address(0) {} - }; - - /// MipsCC - This class provides methods used to analyze formal and call - /// arguments and inquire about calling convention information. - class MipsCC { - public: - MipsCC(CallingConv::ID CallConv, bool IsVarArg, bool IsO32, - CCState &Info); - - void analyzeCallOperands(const SmallVectorImpl &Outs); - void analyzeFormalArguments(const SmallVectorImpl &Ins); - void handleByValArg(unsigned ValNo, MVT ValVT, MVT LocVT, - CCValAssign::LocInfo LocInfo, - ISD::ArgFlagsTy ArgFlags); - - const CCState &getCCInfo() const { return CCInfo; } - - /// hasByValArg - Returns true if function has byval arguments. - bool hasByValArg() const { return !ByValArgs.empty(); } - - /// useRegsForByval - Returns true if the calling convention allows the - /// use of registers to pass byval arguments. - bool useRegsForByval() const { return UseRegsForByval; } - - /// regSize - Size (in number of bits) of integer registers. - unsigned regSize() const { return RegSize; } - - /// numIntArgRegs - Number of integer registers available for calls. - unsigned numIntArgRegs() const { return NumIntArgRegs; } - - /// reservedArgArea - The size of the area the caller reserves for - /// register arguments. This is 16-byte if ABI is O32. - unsigned reservedArgArea() const { return ReservedArgArea; } - - /// intArgRegs - Pointer to array of integer registers. - const uint16_t *intArgRegs() const { return IntArgRegs; } - - typedef SmallVector::const_iterator byval_iterator; - byval_iterator byval_begin() const { return ByValArgs.begin(); } - byval_iterator byval_end() const { return ByValArgs.end(); } - - private: - void allocateRegs(ByValArgInfo &ByVal, unsigned ByValSize, - unsigned Align); - - CCState &CCInfo; - bool UseRegsForByval; - unsigned RegSize; - unsigned NumIntArgRegs; - unsigned ReservedArgArea; - const uint16_t *IntArgRegs, *ShadowRegs; - SmallVector ByValArgs; - llvm::CCAssignFn *FixedFn, *VarFn; - }; + // Create a TargetBlockAddress node. + SDValue getTargetNode(BlockAddressSDNode *N, EVT Ty, SelectionDAG &DAG, + unsigned Flag) const; - // Subtarget Info - const MipsSubtarget *Subtarget; + // Create a TargetJumpTable node. + SDValue getTargetNode(JumpTableSDNode *N, EVT Ty, SelectionDAG &DAG, + unsigned Flag) const; - bool HasMips64, IsN64, IsO32; + // Create a TargetConstantPool node. + SDValue getTargetNode(ConstantPoolSDNode *N, EVT Ty, SelectionDAG &DAG, + unsigned Flag) const; // Lower Operand helpers SDValue LowerCallResult(SDValue Chain, SDValue InFlag, CallingConv::ID CallConv, bool isVarArg, - const SmallVectorImpl &Ins, - DebugLoc dl, SelectionDAG &DAG, - SmallVectorImpl &InVals) const; + const SmallVectorImpl &Ins, SDLoc dl, + SelectionDAG &DAG, SmallVectorImpl &InVals, + TargetLowering::CallLoweringInfo &CLI) const; // Lower Operand specifics - SDValue LowerBRCOND(SDValue Op, SelectionDAG &DAG) const; - SDValue LowerConstantPool(SDValue Op, SelectionDAG &DAG) const; - SDValue LowerGlobalAddress(SDValue Op, SelectionDAG &DAG) const; - SDValue LowerBlockAddress(SDValue Op, SelectionDAG &DAG) const; - SDValue LowerGlobalTLSAddress(SDValue Op, SelectionDAG &DAG) const; - SDValue LowerJumpTable(SDValue Op, SelectionDAG &DAG) const; - SDValue LowerSELECT(SDValue Op, SelectionDAG &DAG) const; - SDValue LowerSELECT_CC(SDValue Op, SelectionDAG &DAG) const; - SDValue LowerSETCC(SDValue Op, SelectionDAG &DAG) const; - SDValue LowerVASTART(SDValue Op, SelectionDAG &DAG) const; - SDValue LowerFCOPYSIGN(SDValue Op, SelectionDAG &DAG) const; - SDValue LowerFABS(SDValue Op, SelectionDAG &DAG) const; - SDValue LowerFRAMEADDR(SDValue Op, SelectionDAG &DAG) const; - SDValue LowerRETURNADDR(SDValue Op, SelectionDAG &DAG) const; - SDValue LowerMEMBARRIER(SDValue Op, SelectionDAG& DAG) const; - SDValue LowerATOMIC_FENCE(SDValue Op, SelectionDAG& DAG) const; - SDValue LowerShiftLeftParts(SDValue Op, SelectionDAG& DAG) const; - SDValue LowerShiftRightParts(SDValue Op, SelectionDAG& DAG, + SDValue lowerBR_JT(SDValue Op, SelectionDAG &DAG) const; + SDValue lowerBRCOND(SDValue Op, SelectionDAG &DAG) const; + SDValue lowerConstantPool(SDValue Op, SelectionDAG &DAG) const; + SDValue lowerGlobalAddress(SDValue Op, SelectionDAG &DAG) const; + SDValue lowerBlockAddress(SDValue Op, SelectionDAG &DAG) const; + SDValue lowerGlobalTLSAddress(SDValue Op, SelectionDAG &DAG) const; + SDValue lowerJumpTable(SDValue Op, SelectionDAG &DAG) const; + SDValue lowerSELECT(SDValue Op, SelectionDAG &DAG) const; + SDValue lowerSELECT_CC(SDValue Op, SelectionDAG &DAG) const; + SDValue lowerSETCC(SDValue Op, SelectionDAG &DAG) const; + SDValue lowerVASTART(SDValue Op, SelectionDAG &DAG) const; + SDValue lowerVAARG(SDValue Op, SelectionDAG &DAG) const; + SDValue lowerFCOPYSIGN(SDValue Op, SelectionDAG &DAG) const; + SDValue lowerFABS(SDValue Op, SelectionDAG &DAG) const; + SDValue lowerFRAMEADDR(SDValue Op, SelectionDAG &DAG) const; + SDValue lowerRETURNADDR(SDValue Op, SelectionDAG &DAG) const; + SDValue lowerEH_RETURN(SDValue Op, SelectionDAG &DAG) const; + SDValue lowerATOMIC_FENCE(SDValue Op, SelectionDAG& DAG) const; + SDValue lowerShiftLeftParts(SDValue Op, SelectionDAG& DAG) const; + SDValue lowerShiftRightParts(SDValue Op, SelectionDAG& DAG, bool IsSRA) const; - SDValue LowerLOAD(SDValue Op, SelectionDAG &DAG) const; - SDValue LowerSTORE(SDValue Op, SelectionDAG &DAG) const; - SDValue LowerINTRINSIC_WO_CHAIN(SDValue Op, SelectionDAG &DAG) const; - SDValue LowerINTRINSIC_W_CHAIN(SDValue Op, SelectionDAG &DAG) const; - SDValue LowerADD(SDValue Op, SelectionDAG &DAG) const; + SDValue lowerADD(SDValue Op, SelectionDAG &DAG) const; + SDValue lowerFP_TO_SINT(SDValue Op, SelectionDAG &DAG) const; - /// IsEligibleForTailCallOptimization - Check whether the call is eligible + /// isEligibleForTailCallOptimization - Check whether the call is eligible /// for tail call optimization. - bool IsEligibleForTailCallOptimization(const MipsCC &MipsCCInfo, - unsigned NextStackOffset, - const MipsFunctionInfo& FI) const; + virtual bool + isEligibleForTailCallOptimization(const CCState &CCInfo, + unsigned NextStackOffset, + const MipsFunctionInfo &FI) const = 0; /// copyByValArg - Copy argument registers which were used to pass a byval /// argument to the stack. Create a stack frame object for the byval /// argument. - void copyByValRegs(SDValue Chain, DebugLoc DL, - std::vector &OutChains, SelectionDAG &DAG, - const ISD::ArgFlagsTy &Flags, + void copyByValRegs(SDValue Chain, SDLoc DL, std::vector &OutChains, + SelectionDAG &DAG, const ISD::ArgFlagsTy &Flags, SmallVectorImpl &InVals, - const Argument *FuncArg, - const MipsCC &CC, const ByValArgInfo &ByVal) const; + const Argument *FuncArg, unsigned FirstReg, + unsigned LastReg, const CCValAssign &VA, + MipsCCState &State) const; /// passByValArg - Pass a byval argument in registers or on stack. - void passByValArg(SDValue Chain, DebugLoc DL, - SmallVector, 16> &RegsToPass, - SmallVector &MemOpChains, SDValue StackPtr, + void passByValArg(SDValue Chain, SDLoc DL, + std::deque> &RegsToPass, + SmallVectorImpl &MemOpChains, SDValue StackPtr, MachineFrameInfo *MFI, SelectionDAG &DAG, SDValue Arg, - const MipsCC &CC, const ByValArgInfo &ByVal, - const ISD::ArgFlagsTy &Flags, bool isLittle) const; + unsigned FirstReg, unsigned LastReg, + const ISD::ArgFlagsTy &Flags, bool isLittle, + const CCValAssign &VA) const; /// writeVarArgRegs - Write variable function arguments passed in registers /// to the stack. Also create a stack frame object for the first variable /// argument. - void writeVarArgRegs(std::vector &OutChains, const MipsCC &CC, - SDValue Chain, DebugLoc DL, SelectionDAG &DAG) const; + void writeVarArgRegs(std::vector &OutChains, SDValue Chain, + SDLoc DL, SelectionDAG &DAG, CCState &State) const; - virtual SDValue + SDValue LowerFormalArguments(SDValue Chain, CallingConv::ID CallConv, bool isVarArg, const SmallVectorImpl &Ins, - DebugLoc dl, SelectionDAG &DAG, - SmallVectorImpl &InVals) const; + SDLoc dl, SelectionDAG &DAG, + SmallVectorImpl &InVals) const override; SDValue passArgOnStack(SDValue StackPtr, unsigned Offset, SDValue Chain, - SDValue Arg, DebugLoc DL, bool IsTailCall, + SDValue Arg, SDLoc DL, bool IsTailCall, SelectionDAG &DAG) const; - virtual SDValue - LowerCall(TargetLowering::CallLoweringInfo &CLI, - SmallVectorImpl &InVals) const; + SDValue LowerCall(TargetLowering::CallLoweringInfo &CLI, + SmallVectorImpl &InVals) const override; - virtual bool - CanLowerReturn(CallingConv::ID CallConv, MachineFunction &MF, - bool isVarArg, - const SmallVectorImpl &Outs, - LLVMContext &Context) const; - - virtual SDValue - LowerReturn(SDValue Chain, - CallingConv::ID CallConv, bool isVarArg, - const SmallVectorImpl &Outs, - const SmallVectorImpl &OutVals, - DebugLoc dl, SelectionDAG &DAG) const; - - virtual MachineBasicBlock * - EmitInstrWithCustomInserter(MachineInstr *MI, - MachineBasicBlock *MBB) const; + bool CanLowerReturn(CallingConv::ID CallConv, MachineFunction &MF, + bool isVarArg, + const SmallVectorImpl &Outs, + LLVMContext &Context) const override; + + SDValue LowerReturn(SDValue Chain, + CallingConv::ID CallConv, bool isVarArg, + const SmallVectorImpl &Outs, + const SmallVectorImpl &OutVals, + SDLoc dl, SelectionDAG &DAG) const override; + + bool shouldSignExtendTypeInLibCall(EVT Type, bool IsSigned) const override; // Inline asm support - ConstraintType getConstraintType(const std::string &Constraint) const; + ConstraintType getConstraintType(StringRef Constraint) const override; /// Examine constraint string and operand type and determine a weight value. /// The operand object must already have been set up with the operand type. ConstraintWeight getSingleConstraintMatchWeight( - AsmOperandInfo &info, const char *constraint) const; + AsmOperandInfo &info, const char *constraint) const override; + + /// This function parses registers that appear in inline-asm constraints. + /// It returns pair (0, 0) on failure. + std::pair + parseRegForInlineAsmConstraint(StringRef C, MVT VT) const; - std::pair - getRegForInlineAsmConstraint(const std::string &Constraint, - EVT VT) const; + std::pair + getRegForInlineAsmConstraint(const TargetRegisterInfo *TRI, + StringRef Constraint, MVT VT) const override; /// LowerAsmOperandForConstraint - Lower the specified operand into the Ops /// vector. If it is invalid, don't add anything to Ops. If hasMemory is /// true it means one of the asm constraint of the inline asm instruction /// being processed is 'm'. - virtual void LowerAsmOperandForConstraint(SDValue Op, - std::string &Constraint, - std::vector &Ops, - SelectionDAG &DAG) const; - - virtual bool isOffsetFoldingLegal(const GlobalAddressSDNode *GA) const; - - virtual EVT getOptimalMemOpType(uint64_t Size, unsigned DstAlign, - unsigned SrcAlign, bool IsZeroVal, - bool MemcpyStrSrc, - MachineFunction &MF) const; + void LowerAsmOperandForConstraint(SDValue Op, + std::string &Constraint, + std::vector &Ops, + SelectionDAG &DAG) const override; + + unsigned + getInlineAsmMemConstraint(StringRef ConstraintCode) const override { + if (ConstraintCode == "R") + return InlineAsm::Constraint_R; + else if (ConstraintCode == "ZC") + return InlineAsm::Constraint_ZC; + return TargetLowering::getInlineAsmMemConstraint(ConstraintCode); + } + + bool isLegalAddressingMode(const DataLayout &DL, const AddrMode &AM, + Type *Ty, unsigned AS) const override; + + bool isOffsetFoldingLegal(const GlobalAddressSDNode *GA) const override; + + EVT getOptimalMemOpType(uint64_t Size, unsigned DstAlign, + unsigned SrcAlign, + bool IsMemset, bool ZeroMemset, + bool MemcpyStrSrc, + MachineFunction &MF) const override; /// isFPImmLegal - Returns true if the target can instruction select the /// specified FP immediate natively. If false, the legalizer will /// materialize the FP immediate as a load from a constant pool. - virtual bool isFPImmLegal(const APFloat &Imm, EVT VT) const; + bool isFPImmLegal(const APFloat &Imm, EVT VT) const override; + + unsigned getJumpTableEncoding() const override; + bool useSoftFloat() const override; - virtual unsigned getJumpTableEncoding() const; + /// Emit a sign-extension using sll/sra, seb, or seh appropriately. + MachineBasicBlock *emitSignExtendToI32InReg(MachineInstr *MI, + MachineBasicBlock *BB, + unsigned Size, unsigned DstReg, + unsigned SrcRec) const; - MachineBasicBlock *EmitBPOSGE32(MachineInstr *MI, - MachineBasicBlock *BB) const; - MachineBasicBlock *EmitAtomicBinary(MachineInstr *MI, MachineBasicBlock *BB, + MachineBasicBlock *emitAtomicBinary(MachineInstr *MI, MachineBasicBlock *BB, unsigned Size, unsigned BinOpcode, bool Nand = false) const; - MachineBasicBlock *EmitAtomicBinaryPartword(MachineInstr *MI, + MachineBasicBlock *emitAtomicBinaryPartword(MachineInstr *MI, MachineBasicBlock *BB, unsigned Size, unsigned BinOpcode, bool Nand = false) const; - MachineBasicBlock *EmitAtomicCmpSwap(MachineInstr *MI, + MachineBasicBlock *emitAtomicCmpSwap(MachineInstr *MI, MachineBasicBlock *BB, unsigned Size) const; - MachineBasicBlock *EmitAtomicCmpSwapPartword(MachineInstr *MI, + MachineBasicBlock *emitAtomicCmpSwapPartword(MachineInstr *MI, MachineBasicBlock *BB, unsigned Size) const; + MachineBasicBlock *emitSEL_D(MachineInstr *MI, MachineBasicBlock *BB) const; + MachineBasicBlock *emitPseudoSELECT(MachineInstr *MI, + MachineBasicBlock *BB, bool isFPCmp, + unsigned Opc) const; }; + + /// Create MipsTargetLowering objects. + const MipsTargetLowering * + createMips16TargetLowering(const MipsTargetMachine &TM, + const MipsSubtarget &STI); + const MipsTargetLowering * + createMipsSETargetLowering(const MipsTargetMachine &TM, + const MipsSubtarget &STI); + + namespace Mips { + FastISel *createFastISel(FunctionLoweringInfo &funcInfo, + const TargetLibraryInfo *libInfo); + } } -#endif // MipsISELLOWERING_H +#endif