| //===-- LegalizeTypes.h - Definition of the DAG Type Legalizer class ------===// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file is distributed under the University of Illinois Open Source |
| // License. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| // |
| // This file defines the DAGTypeLegalizer class. This is a private interface |
| // shared between the code that implements the SelectionDAG::LegalizeTypes |
| // method. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #ifndef SELECTIONDAG_LEGALIZETYPES_H |
| #define SELECTIONDAG_LEGALIZETYPES_H |
| |
| #define DEBUG_TYPE "legalize-types" |
| #include "llvm/CodeGen/SelectionDAG.h" |
| #include "llvm/Target/TargetLowering.h" |
| #include "llvm/ADT/DenseMap.h" |
| #include "llvm/Support/Compiler.h" |
| #include "llvm/Support/Debug.h" |
| |
| namespace llvm { |
| |
| //===----------------------------------------------------------------------===// |
| /// DAGTypeLegalizer - This takes an arbitrary SelectionDAG as input and hacks |
| /// on it until only value types the target machine can handle are left. This |
| /// involves promoting small sizes to large sizes or splitting up large values |
| /// into small values. |
| /// |
| class VISIBILITY_HIDDEN DAGTypeLegalizer { |
| TargetLowering &TLI; |
| SelectionDAG &DAG; |
| public: |
| // NodeIDFlags - This pass uses the NodeID on the SDNodes to hold information |
| // about the state of the node. The enum has all the values. |
| enum NodeIDFlags { |
| /// ReadyToProcess - All operands have been processed, so this node is ready |
| /// to be handled. |
| ReadyToProcess = 0, |
| |
| /// NewNode - This is a new node that was created in the process of |
| /// legalizing some other node. |
| NewNode = -1, |
| |
| /// Processed - This is a node that has already been processed. |
| Processed = -2 |
| |
| // 1+ - This is a node which has this many unlegalized operands. |
| }; |
| private: |
| enum LegalizeAction { |
| Legal, // The target natively supports this type. |
| PromoteInteger, // Replace this integer type with a larger one. |
| ExpandInteger, // Split this integer type into two of half the size. |
| SoftenFloat, // Convert this float type to a same size integer type. |
| ExpandFloat, // Split this float type into two of half the size. |
| ScalarizeVector, // Replace this one-element vector with its element type. |
| SplitVector // This vector type should be split into smaller vectors. |
| }; |
| |
| /// ValueTypeActions - This is a bitvector that contains two bits for each |
| /// simple value type, where the two bits correspond to the LegalizeAction |
| /// enum from TargetLowering. This can be queried with "getTypeAction(VT)". |
| TargetLowering::ValueTypeActionImpl ValueTypeActions; |
| |
| /// getTypeAction - Return how we should legalize values of this type, either |
| /// it is already legal, or we need to promote it to a larger integer type, or |
| /// we need to expand it into multiple registers of a smaller integer type, or |
| /// we need to split a vector type into smaller vector types, or we need to |
| /// convert it to a different type of the same size. |
| LegalizeAction getTypeAction(MVT VT) const { |
| switch (ValueTypeActions.getTypeAction(VT)) { |
| default: |
| assert(false && "Unknown legalize action!"); |
| case TargetLowering::Legal: |
| return Legal; |
| case TargetLowering::Promote: |
| return PromoteInteger; |
| case TargetLowering::Expand: |
| // Expand can mean |
| // 1) split scalar in half, 2) convert a float to an integer, |
| // 3) scalarize a single-element vector, 4) split a vector in two. |
| if (!VT.isVector()) { |
| if (VT.isInteger()) |
| return ExpandInteger; |
| else if (VT.getSizeInBits() == |
| TLI.getTypeToTransformTo(VT).getSizeInBits()) |
| return SoftenFloat; |
| else |
| return ExpandFloat; |
| } else if (VT.getVectorNumElements() == 1) { |
| return ScalarizeVector; |
| } else { |
| return SplitVector; |
| } |
| } |
| } |
| |
| /// isTypeLegal - Return true if this type is legal on this target. |
| bool isTypeLegal(MVT VT) const { |
| return ValueTypeActions.getTypeAction(VT) == TargetLowering::Legal; |
| } |
| |
| /// IgnoreNodeResults - Pretend all of this node's results are legal. |
| bool IgnoreNodeResults(SDNode *N) const { |
| return N->getOpcode() == ISD::TargetConstant; |
| } |
| |
| /// PromotedIntegers - For integer nodes that are below legal width, this map |
| /// indicates what promoted value to use. |
| DenseMap<SDValue, SDValue> PromotedIntegers; |
| |
| /// ExpandedIntegers - For integer nodes that need to be expanded this map |
| /// indicates which operands are the expanded version of the input. |
| DenseMap<SDValue, std::pair<SDValue, SDValue> > ExpandedIntegers; |
| |
| /// SoftenedFloats - For floating point nodes converted to integers of |
| /// the same size, this map indicates the converted value to use. |
| DenseMap<SDValue, SDValue> SoftenedFloats; |
| |
| /// ExpandedFloats - For float nodes that need to be expanded this map |
| /// indicates which operands are the expanded version of the input. |
| DenseMap<SDValue, std::pair<SDValue, SDValue> > ExpandedFloats; |
| |
| /// ScalarizedVectors - For nodes that are <1 x ty>, this map indicates the |
| /// scalar value of type 'ty' to use. |
| DenseMap<SDValue, SDValue> ScalarizedVectors; |
| |
| /// SplitVectors - For nodes that need to be split this map indicates |
| /// which operands are the expanded version of the input. |
| DenseMap<SDValue, std::pair<SDValue, SDValue> > SplitVectors; |
| |
| /// ReplacedNodes - For nodes that have been replaced with another, |
| /// indicates the replacement node to use. |
| DenseMap<SDValue, SDValue> ReplacedNodes; |
| |
| /// Worklist - This defines a worklist of nodes to process. In order to be |
| /// pushed onto this worklist, all operands of a node must have already been |
| /// processed. |
| SmallVector<SDNode*, 128> Worklist; |
| |
| public: |
| explicit DAGTypeLegalizer(SelectionDAG &dag) |
| : TLI(dag.getTargetLoweringInfo()), DAG(dag), |
| ValueTypeActions(TLI.getValueTypeActions()) { |
| assert(MVT::LAST_VALUETYPE <= 32 && |
| "Too many value types for ValueTypeActions to hold!"); |
| } |
| |
| void run(); |
| |
| /// ReanalyzeNode - Recompute the NodeID and correct processed operands |
| /// for the specified node, adding it to the worklist if ready. |
| SDNode *ReanalyzeNode(SDNode *N) { |
| N->setNodeId(NewNode); |
| return AnalyzeNewNode(N); |
| } |
| |
| void NoteDeletion(SDNode *Old, SDNode *New) { |
| ExpungeNode(Old); |
| ExpungeNode(New); |
| for (unsigned i = 0, e = Old->getNumValues(); i != e; ++i) |
| ReplacedNodes[SDValue(Old, i)] = SDValue(New, i); |
| } |
| |
| private: |
| void AnalyzeNewNode(SDValue &Val); |
| SDNode *AnalyzeNewNode(SDNode *N); |
| |
| void ReplaceValueWith(SDValue From, SDValue To); |
| void ReplaceNodeWith(SDNode *From, SDNode *To); |
| |
| void RemapNode(SDValue &N); |
| void ExpungeNode(SDNode *N); |
| |
| // Common routines. |
| SDValue CreateStackStoreLoad(SDValue Op, MVT DestVT); |
| SDValue MakeLibCall(RTLIB::Libcall LC, MVT RetVT, |
| const SDValue *Ops, unsigned NumOps, bool isSigned); |
| |
| SDValue BitConvertToInteger(SDValue Op); |
| SDValue JoinIntegers(SDValue Lo, SDValue Hi); |
| void SplitInteger(SDValue Op, SDValue &Lo, SDValue &Hi); |
| void SplitInteger(SDValue Op, MVT LoVT, MVT HiVT, |
| SDValue &Lo, SDValue &Hi); |
| |
| SDValue GetVectorElementPointer(SDValue VecPtr, MVT EltVT, |
| SDValue Index); |
| |
| //===--------------------------------------------------------------------===// |
| // Integer Promotion Support: LegalizeIntegerTypes.cpp |
| //===--------------------------------------------------------------------===// |
| |
| SDValue GetPromotedInteger(SDValue Op) { |
| SDValue &PromotedOp = PromotedIntegers[Op]; |
| RemapNode(PromotedOp); |
| assert(PromotedOp.getNode() && "Operand wasn't promoted?"); |
| return PromotedOp; |
| } |
| void SetPromotedInteger(SDValue Op, SDValue Result); |
| |
| /// ZExtPromotedInteger - Get a promoted operand and zero extend it to the |
| /// final size. |
| SDValue ZExtPromotedInteger(SDValue Op) { |
| MVT OldVT = Op.getValueType(); |
| Op = GetPromotedInteger(Op); |
| return DAG.getZeroExtendInReg(Op, OldVT); |
| } |
| |
| // Integer Result Promotion. |
| void PromoteIntegerResult(SDNode *N, unsigned ResNo); |
| SDValue PromoteIntRes_AssertSext(SDNode *N); |
| SDValue PromoteIntRes_AssertZext(SDNode *N); |
| SDValue PromoteIntRes_BIT_CONVERT(SDNode *N); |
| SDValue PromoteIntRes_BSWAP(SDNode *N); |
| SDValue PromoteIntRes_BUILD_PAIR(SDNode *N); |
| SDValue PromoteIntRes_Constant(SDNode *N); |
| SDValue PromoteIntRes_CTLZ(SDNode *N); |
| SDValue PromoteIntRes_CTPOP(SDNode *N); |
| SDValue PromoteIntRes_CTTZ(SDNode *N); |
| SDValue PromoteIntRes_EXTRACT_VECTOR_ELT(SDNode *N); |
| SDValue PromoteIntRes_FP_TO_XINT(SDNode *N); |
| SDValue PromoteIntRes_INT_EXTEND(SDNode *N); |
| SDValue PromoteIntRes_LOAD(LoadSDNode *N); |
| SDValue PromoteIntRes_SDIV(SDNode *N); |
| SDValue PromoteIntRes_SELECT (SDNode *N); |
| SDValue PromoteIntRes_SELECT_CC(SDNode *N); |
| SDValue PromoteIntRes_SETCC(SDNode *N); |
| SDValue PromoteIntRes_SHL(SDNode *N); |
| SDValue PromoteIntRes_SimpleIntBinOp(SDNode *N); |
| SDValue PromoteIntRes_SIGN_EXTEND_INREG(SDNode *N); |
| SDValue PromoteIntRes_SRA(SDNode *N); |
| SDValue PromoteIntRes_SRL(SDNode *N); |
| SDValue PromoteIntRes_TRUNCATE(SDNode *N); |
| SDValue PromoteIntRes_UDIV(SDNode *N); |
| SDValue PromoteIntRes_UNDEF(SDNode *N); |
| SDValue PromoteIntRes_VAARG(SDNode *N); |
| |
| // Integer Operand Promotion. |
| bool PromoteIntegerOperand(SDNode *N, unsigned OperandNo); |
| SDValue PromoteIntOp_ANY_EXTEND(SDNode *N); |
| SDValue PromoteIntOp_BUILD_PAIR(SDNode *N); |
| SDValue PromoteIntOp_BR_CC(SDNode *N, unsigned OpNo); |
| SDValue PromoteIntOp_BRCOND(SDNode *N, unsigned OpNo); |
| SDValue PromoteIntOp_BUILD_VECTOR(SDNode *N); |
| SDValue PromoteIntOp_FP_EXTEND(SDNode *N); |
| SDValue PromoteIntOp_FP_ROUND(SDNode *N); |
| SDValue PromoteIntOp_INT_TO_FP(SDNode *N); |
| SDValue PromoteIntOp_INSERT_VECTOR_ELT(SDNode *N, unsigned OpNo); |
| SDValue PromoteIntOp_MEMBARRIER(SDNode *N); |
| SDValue PromoteIntOp_SELECT(SDNode *N, unsigned OpNo); |
| SDValue PromoteIntOp_SELECT_CC(SDNode *N, unsigned OpNo); |
| SDValue PromoteIntOp_SETCC(SDNode *N, unsigned OpNo); |
| SDValue PromoteIntOp_SIGN_EXTEND(SDNode *N); |
| SDValue PromoteIntOp_STORE(StoreSDNode *N, unsigned OpNo); |
| SDValue PromoteIntOp_TRUNCATE(SDNode *N); |
| SDValue PromoteIntOp_ZERO_EXTEND(SDNode *N); |
| |
| void PromoteSetCCOperands(SDValue &LHS,SDValue &RHS, ISD::CondCode Code); |
| |
| //===--------------------------------------------------------------------===// |
| // Integer Expansion Support: LegalizeIntegerTypes.cpp |
| //===--------------------------------------------------------------------===// |
| |
| void GetExpandedInteger(SDValue Op, SDValue &Lo, SDValue &Hi); |
| void SetExpandedInteger(SDValue Op, SDValue Lo, SDValue Hi); |
| |
| // Integer Result Expansion. |
| void ExpandIntegerResult(SDNode *N, unsigned ResNo); |
| void ExpandIntRes_ANY_EXTEND (SDNode *N, SDValue &Lo, SDValue &Hi); |
| void ExpandIntRes_AssertSext (SDNode *N, SDValue &Lo, SDValue &Hi); |
| void ExpandIntRes_AssertZext (SDNode *N, SDValue &Lo, SDValue &Hi); |
| void ExpandIntRes_Constant (SDNode *N, SDValue &Lo, SDValue &Hi); |
| void ExpandIntRes_CTLZ (SDNode *N, SDValue &Lo, SDValue &Hi); |
| void ExpandIntRes_CTPOP (SDNode *N, SDValue &Lo, SDValue &Hi); |
| void ExpandIntRes_CTTZ (SDNode *N, SDValue &Lo, SDValue &Hi); |
| void ExpandIntRes_LOAD (LoadSDNode *N, SDValue &Lo, SDValue &Hi); |
| void ExpandIntRes_SIGN_EXTEND (SDNode *N, SDValue &Lo, SDValue &Hi); |
| void ExpandIntRes_SIGN_EXTEND_INREG (SDNode *N, SDValue &Lo, SDValue &Hi); |
| void ExpandIntRes_TRUNCATE (SDNode *N, SDValue &Lo, SDValue &Hi); |
| void ExpandIntRes_ZERO_EXTEND (SDNode *N, SDValue &Lo, SDValue &Hi); |
| void ExpandIntRes_FP_TO_SINT (SDNode *N, SDValue &Lo, SDValue &Hi); |
| void ExpandIntRes_FP_TO_UINT (SDNode *N, SDValue &Lo, SDValue &Hi); |
| |
| void ExpandIntRes_Logical (SDNode *N, SDValue &Lo, SDValue &Hi); |
| void ExpandIntRes_ADDSUB (SDNode *N, SDValue &Lo, SDValue &Hi); |
| void ExpandIntRes_ADDSUBC (SDNode *N, SDValue &Lo, SDValue &Hi); |
| void ExpandIntRes_ADDSUBE (SDNode *N, SDValue &Lo, SDValue &Hi); |
| void ExpandIntRes_BSWAP (SDNode *N, SDValue &Lo, SDValue &Hi); |
| void ExpandIntRes_MUL (SDNode *N, SDValue &Lo, SDValue &Hi); |
| void ExpandIntRes_SDIV (SDNode *N, SDValue &Lo, SDValue &Hi); |
| void ExpandIntRes_SREM (SDNode *N, SDValue &Lo, SDValue &Hi); |
| void ExpandIntRes_UDIV (SDNode *N, SDValue &Lo, SDValue &Hi); |
| void ExpandIntRes_UREM (SDNode *N, SDValue &Lo, SDValue &Hi); |
| void ExpandIntRes_Shift (SDNode *N, SDValue &Lo, SDValue &Hi); |
| |
| void ExpandShiftByConstant(SDNode *N, unsigned Amt, |
| SDValue &Lo, SDValue &Hi); |
| bool ExpandShiftWithKnownAmountBit(SDNode *N, SDValue &Lo, SDValue &Hi); |
| |
| // Integer Operand Expansion. |
| bool ExpandIntegerOperand(SDNode *N, unsigned OperandNo); |
| SDValue ExpandIntOp_BIT_CONVERT(SDNode *N); |
| SDValue ExpandIntOp_BR_CC(SDNode *N); |
| SDValue ExpandIntOp_BUILD_VECTOR(SDNode *N); |
| SDValue ExpandIntOp_EXTRACT_ELEMENT(SDNode *N); |
| SDValue ExpandIntOp_SELECT_CC(SDNode *N); |
| SDValue ExpandIntOp_SETCC(SDNode *N); |
| SDValue ExpandIntOp_SINT_TO_FP(SDNode *N); |
| SDValue ExpandIntOp_STORE(StoreSDNode *N, unsigned OpNo); |
| SDValue ExpandIntOp_TRUNCATE(SDNode *N); |
| SDValue ExpandIntOp_UINT_TO_FP(SDNode *N); |
| |
| void IntegerExpandSetCCOperands(SDValue &NewLHS, SDValue &NewRHS, |
| ISD::CondCode &CCCode); |
| |
| //===--------------------------------------------------------------------===// |
| // Float to Integer Conversion Support: LegalizeFloatTypes.cpp |
| //===--------------------------------------------------------------------===// |
| |
| SDValue GetSoftenedFloat(SDValue Op) { |
| SDValue &SoftenedOp = SoftenedFloats[Op]; |
| RemapNode(SoftenedOp); |
| assert(SoftenedOp.getNode() && "Operand wasn't converted to integer?"); |
| return SoftenedOp; |
| } |
| void SetSoftenedFloat(SDValue Op, SDValue Result); |
| |
| // Result Float to Integer Conversion. |
| void SoftenFloatResult(SDNode *N, unsigned OpNo); |
| SDValue SoftenFloatRes_BIT_CONVERT(SDNode *N); |
| SDValue SoftenFloatRes_BUILD_PAIR(SDNode *N); |
| SDValue SoftenFloatRes_ConstantFP(ConstantFPSDNode *N); |
| SDValue SoftenFloatRes_FABS(SDNode *N); |
| SDValue SoftenFloatRes_FADD(SDNode *N); |
| SDValue SoftenFloatRes_FCOPYSIGN(SDNode *N); |
| SDValue SoftenFloatRes_FDIV(SDNode *N); |
| SDValue SoftenFloatRes_FMUL(SDNode *N); |
| SDValue SoftenFloatRes_FP_EXTEND(SDNode *N); |
| SDValue SoftenFloatRes_FP_ROUND(SDNode *N); |
| SDValue SoftenFloatRes_FPOWI(SDNode *N); |
| SDValue SoftenFloatRes_FSUB(SDNode *N); |
| SDValue SoftenFloatRes_LOAD(SDNode *N); |
| SDValue SoftenFloatRes_SELECT(SDNode *N); |
| SDValue SoftenFloatRes_SELECT_CC(SDNode *N); |
| SDValue SoftenFloatRes_SINT_TO_FP(SDNode *N); |
| SDValue SoftenFloatRes_UINT_TO_FP(SDNode *N); |
| |
| // Operand Float to Integer Conversion. |
| bool SoftenFloatOperand(SDNode *N, unsigned OpNo); |
| SDValue SoftenFloatOp_BIT_CONVERT(SDNode *N); |
| SDValue SoftenFloatOp_BR_CC(SDNode *N); |
| SDValue SoftenFloatOp_FP_ROUND(SDNode *N); |
| SDValue SoftenFloatOp_FP_TO_SINT(SDNode *N); |
| SDValue SoftenFloatOp_FP_TO_UINT(SDNode *N); |
| SDValue SoftenFloatOp_SELECT_CC(SDNode *N); |
| SDValue SoftenFloatOp_SETCC(SDNode *N); |
| SDValue SoftenFloatOp_STORE(SDNode *N, unsigned OpNo); |
| |
| void SoftenSetCCOperands(SDValue &NewLHS, SDValue &NewRHS, |
| ISD::CondCode &CCCode); |
| |
| //===--------------------------------------------------------------------===// |
| // Float Expansion Support: LegalizeFloatTypes.cpp |
| //===--------------------------------------------------------------------===// |
| |
| void GetExpandedFloat(SDValue Op, SDValue &Lo, SDValue &Hi); |
| void SetExpandedFloat(SDValue Op, SDValue Lo, SDValue Hi); |
| |
| // Float Result Expansion. |
| void ExpandFloatResult(SDNode *N, unsigned ResNo); |
| void ExpandFloatRes_ConstantFP(SDNode *N, SDValue &Lo, SDValue &Hi); |
| void ExpandFloatRes_FABS (SDNode *N, SDValue &Lo, SDValue &Hi); |
| void ExpandFloatRes_FADD (SDNode *N, SDValue &Lo, SDValue &Hi); |
| void ExpandFloatRes_FDIV (SDNode *N, SDValue &Lo, SDValue &Hi); |
| void ExpandFloatRes_FMUL (SDNode *N, SDValue &Lo, SDValue &Hi); |
| void ExpandFloatRes_FNEG (SDNode *N, SDValue &Lo, SDValue &Hi); |
| void ExpandFloatRes_FP_EXTEND (SDNode *N, SDValue &Lo, SDValue &Hi); |
| void ExpandFloatRes_FSUB (SDNode *N, SDValue &Lo, SDValue &Hi); |
| void ExpandFloatRes_LOAD (SDNode *N, SDValue &Lo, SDValue &Hi); |
| void ExpandFloatRes_XINT_TO_FP(SDNode *N, SDValue &Lo, SDValue &Hi); |
| |
| // Float Operand Expansion. |
| bool ExpandFloatOperand(SDNode *N, unsigned OperandNo); |
| SDValue ExpandFloatOp_BR_CC(SDNode *N); |
| SDValue ExpandFloatOp_FP_ROUND(SDNode *N); |
| SDValue ExpandFloatOp_FP_TO_SINT(SDNode *N); |
| SDValue ExpandFloatOp_FP_TO_UINT(SDNode *N); |
| SDValue ExpandFloatOp_SELECT_CC(SDNode *N); |
| SDValue ExpandFloatOp_SETCC(SDNode *N); |
| SDValue ExpandFloatOp_STORE(SDNode *N, unsigned OpNo); |
| |
| void FloatExpandSetCCOperands(SDValue &NewLHS, SDValue &NewRHS, |
| ISD::CondCode &CCCode); |
| |
| //===--------------------------------------------------------------------===// |
| // Scalarization Support: LegalizeVectorTypes.cpp |
| //===--------------------------------------------------------------------===// |
| |
| SDValue GetScalarizedVector(SDValue Op) { |
| SDValue &ScalarizedOp = ScalarizedVectors[Op]; |
| RemapNode(ScalarizedOp); |
| assert(ScalarizedOp.getNode() && "Operand wasn't scalarized?"); |
| return ScalarizedOp; |
| } |
| void SetScalarizedVector(SDValue Op, SDValue Result); |
| |
| // Vector Result Scalarization: <1 x ty> -> ty. |
| void ScalarizeVectorResult(SDNode *N, unsigned OpNo); |
| SDValue ScalarizeVecRes_BinOp(SDNode *N); |
| SDValue ScalarizeVecRes_UnaryOp(SDNode *N); |
| |
| SDValue ScalarizeVecRes_BIT_CONVERT(SDNode *N); |
| SDValue ScalarizeVecRes_FPOWI(SDNode *N); |
| SDValue ScalarizeVecRes_INSERT_VECTOR_ELT(SDNode *N); |
| SDValue ScalarizeVecRes_LOAD(LoadSDNode *N); |
| SDValue ScalarizeVecRes_SELECT(SDNode *N); |
| SDValue ScalarizeVecRes_UNDEF(SDNode *N); |
| SDValue ScalarizeVecRes_VECTOR_SHUFFLE(SDNode *N); |
| SDValue ScalarizeVecRes_VSETCC(SDNode *N); |
| |
| // Vector Operand Scalarization: <1 x ty> -> ty. |
| bool ScalarizeVectorOperand(SDNode *N, unsigned OpNo); |
| SDValue ScalarizeVecOp_BIT_CONVERT(SDNode *N); |
| SDValue ScalarizeVecOp_EXTRACT_VECTOR_ELT(SDNode *N); |
| SDValue ScalarizeVecOp_STORE(StoreSDNode *N, unsigned OpNo); |
| |
| //===--------------------------------------------------------------------===// |
| // Vector Splitting Support: LegalizeVectorTypes.cpp |
| //===--------------------------------------------------------------------===// |
| |
| void GetSplitVector(SDValue Op, SDValue &Lo, SDValue &Hi); |
| void SetSplitVector(SDValue Op, SDValue Lo, SDValue Hi); |
| |
| // Vector Result Splitting: <128 x ty> -> 2 x <64 x ty>. |
| void SplitVectorResult(SDNode *N, unsigned OpNo); |
| void SplitVecRes_BinOp(SDNode *N, SDValue &Lo, SDValue &Hi); |
| void SplitVecRes_UnaryOp(SDNode *N, SDValue &Lo, SDValue &Hi); |
| |
| void SplitVecRes_BIT_CONVERT(SDNode *N, SDValue &Lo, SDValue &Hi); |
| void SplitVecRes_BUILD_PAIR(SDNode *N, SDValue &Lo, SDValue &Hi); |
| void SplitVecRes_BUILD_VECTOR(SDNode *N, SDValue &Lo, SDValue &Hi); |
| void SplitVecRes_CONCAT_VECTORS(SDNode *N, SDValue &Lo, SDValue &Hi); |
| void SplitVecRes_FPOWI(SDNode *N, SDValue &Lo, SDValue &Hi); |
| void SplitVecRes_INSERT_VECTOR_ELT(SDNode *N, SDValue &Lo, SDValue &Hi); |
| void SplitVecRes_LOAD(LoadSDNode *N, SDValue &Lo, SDValue &Hi); |
| void SplitVecRes_UNDEF(SDNode *N, SDValue &Lo, SDValue &Hi); |
| void SplitVecRes_VECTOR_SHUFFLE(SDNode *N, SDValue &Lo, SDValue &Hi); |
| void SplitVecRes_VSETCC(SDNode *N, SDValue &Lo, SDValue &Hi); |
| |
| // Vector Operand Splitting: <128 x ty> -> 2 x <64 x ty>. |
| bool SplitVectorOperand(SDNode *N, unsigned OpNo); |
| |
| SDValue SplitVecOp_BIT_CONVERT(SDNode *N); |
| SDValue SplitVecOp_EXTRACT_SUBVECTOR(SDNode *N); |
| SDValue SplitVecOp_EXTRACT_VECTOR_ELT(SDNode *N); |
| SDValue SplitVecOp_STORE(StoreSDNode *N, unsigned OpNo); |
| SDValue SplitVecOp_VECTOR_SHUFFLE(SDNode *N, unsigned OpNo); |
| |
| //===--------------------------------------------------------------------===// |
| // Generic Splitting: LegalizeTypesGeneric.cpp |
| //===--------------------------------------------------------------------===// |
| |
| // Legalization methods which only use that the illegal type is split into two |
| // not necessarily identical types. As such they can be used for splitting |
| // vectors and expanding integers and floats. |
| |
| void GetSplitOp(SDValue Op, SDValue &Lo, SDValue &Hi) { |
| if (Op.getValueType().isVector()) |
| GetSplitVector(Op, Lo, Hi); |
| else if (Op.getValueType().isInteger()) |
| GetExpandedInteger(Op, Lo, Hi); |
| else |
| GetExpandedFloat(Op, Lo, Hi); |
| } |
| |
| /// GetSplitDestVTs - Compute the VTs needed for the low/hi parts of a type |
| /// which is split (or expanded) into two not necessarily identical pieces. |
| void GetSplitDestVTs(MVT InVT, MVT &LoVT, MVT &HiVT); |
| |
| // Generic Result Splitting. |
| void SplitRes_MERGE_VALUES(SDNode *N, SDValue &Lo, SDValue &Hi); |
| void SplitRes_SELECT (SDNode *N, SDValue &Lo, SDValue &Hi); |
| void SplitRes_SELECT_CC (SDNode *N, SDValue &Lo, SDValue &Hi); |
| void SplitRes_UNDEF (SDNode *N, SDValue &Lo, SDValue &Hi); |
| |
| //===--------------------------------------------------------------------===// |
| // Generic Expansion: LegalizeTypesGeneric.cpp |
| //===--------------------------------------------------------------------===// |
| |
| // Legalization methods which only use that the illegal type is split into two |
| // identical types of half the size, and that the Lo/Hi part is stored first |
| // in memory on little/big-endian machines, followed by the Hi/Lo part. As |
| // such they can be used for expanding integers and floats. |
| |
| void GetExpandedOp(SDValue Op, SDValue &Lo, SDValue &Hi) { |
| if (Op.getValueType().isInteger()) |
| GetExpandedInteger(Op, Lo, Hi); |
| else |
| GetExpandedFloat(Op, Lo, Hi); |
| } |
| |
| // Generic Result Expansion. |
| void ExpandRes_BIT_CONVERT (SDNode *N, SDValue &Lo, SDValue &Hi); |
| void ExpandRes_BUILD_PAIR (SDNode *N, SDValue &Lo, SDValue &Hi); |
| void ExpandRes_EXTRACT_ELEMENT (SDNode *N, SDValue &Lo, SDValue &Hi); |
| void ExpandRes_EXTRACT_VECTOR_ELT(SDNode *N, SDValue &Lo, SDValue &Hi); |
| void ExpandRes_NormalLoad (SDNode *N, SDValue &Lo, SDValue &Hi); |
| |
| // Generic Operand Expansion. |
| SDValue ExpandOp_BIT_CONVERT (SDNode *N); |
| SDValue ExpandOp_BUILD_VECTOR (SDNode *N); |
| SDValue ExpandOp_EXTRACT_ELEMENT(SDNode *N); |
| SDValue ExpandOp_NormalStore (SDNode *N, unsigned OpNo); |
| |
| }; |
| |
| } // end namespace llvm. |
| |
| #endif |