| //===-- 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/ADT/DenseSet.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 LLVM_LIBRARY_VISIBILITY DAGTypeLegalizer { |
| const 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, not before seen, that was created in the |
| /// process of legalizing some other node. |
| NewNode = -1, |
| |
| /// Unanalyzed - This node's ID needs to be set to the number of its |
| /// unprocessed operands. |
| Unanalyzed = -2, |
| |
| /// Processed - This is a node that has already been processed. |
| Processed = -3 |
| |
| // 1+ - This is a node which has this many unprocessed operands. |
| }; |
| private: |
| |
| /// 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. |
| TargetLowering::LegalizeTypeAction getTypeAction(EVT VT) const { |
| return TLI.getTypeAction(*DAG.getContext(), VT); |
| } |
| |
| /// isTypeLegal - Return true if this type is legal on this target. |
| bool isTypeLegal(EVT VT) const { |
| return TLI.getTypeAction(*DAG.getContext(), VT) == TargetLowering::TypeLegal; |
| } |
| |
| /// 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; |
| |
| /// WidenedVectors - For vector nodes that need to be widened, indicates |
| /// the widened value to use. |
| DenseMap<SDValue, SDValue> WidenedVectors; |
| |
| /// ReplacedValues - For values that have been replaced with another, |
| /// indicates the replacement value to use. |
| DenseMap<SDValue, SDValue> ReplacedValues; |
| |
| /// 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 <= MVT::MAX_ALLOWED_VALUETYPE && |
| "Too many value types for ValueTypeActions to hold!"); |
| } |
| |
| /// run - This is the main entry point for the type legalizer. This does a |
| /// top-down traversal of the dag, legalizing types as it goes. Returns |
| /// "true" if it made any changes. |
| bool run(); |
| |
| void NoteDeletion(SDNode *Old, SDNode *New) { |
| ExpungeNode(Old); |
| ExpungeNode(New); |
| for (unsigned i = 0, e = Old->getNumValues(); i != e; ++i) |
| ReplacedValues[SDValue(Old, i)] = SDValue(New, i); |
| } |
| |
| private: |
| SDNode *AnalyzeNewNode(SDNode *N); |
| void AnalyzeNewValue(SDValue &Val); |
| void ExpungeNode(SDNode *N); |
| void PerformExpensiveChecks(); |
| void RemapValue(SDValue &N); |
| |
| // Common routines. |
| SDValue BitConvertToInteger(SDValue Op); |
| SDValue BitConvertVectorToIntegerVector(SDValue Op); |
| SDValue CreateStackStoreLoad(SDValue Op, EVT DestVT); |
| bool CustomLowerNode(SDNode *N, EVT VT, bool LegalizeResult); |
| bool CustomWidenLowerNode(SDNode *N, EVT VT); |
| |
| /// DisintegrateMERGE_VALUES - Replace each result of the given MERGE_VALUES |
| /// node with the corresponding input operand, except for the result 'ResNo', |
| /// which is returned. |
| SDValue DisintegrateMERGE_VALUES(SDNode *N, unsigned ResNo); |
| |
| SDValue GetVectorElementPointer(SDValue VecPtr, EVT EltVT, SDValue Index); |
| SDValue JoinIntegers(SDValue Lo, SDValue Hi); |
| SDValue LibCallify(RTLIB::Libcall LC, SDNode *N, bool isSigned); |
| SDValue MakeLibCall(RTLIB::Libcall LC, EVT RetVT, |
| const SDValue *Ops, unsigned NumOps, bool isSigned, |
| DebugLoc dl); |
| |
| std::pair<SDValue, SDValue> ExpandChainLibCall(RTLIB::Libcall LC, |
| SDNode *Node, bool isSigned); |
| std::pair<SDValue, SDValue> ExpandAtomic(SDNode *Node); |
| |
| SDValue PromoteTargetBoolean(SDValue Bool, EVT VT); |
| void ReplaceValueWith(SDValue From, SDValue To); |
| void SplitInteger(SDValue Op, SDValue &Lo, SDValue &Hi); |
| void SplitInteger(SDValue Op, EVT LoVT, EVT HiVT, |
| SDValue &Lo, SDValue &Hi); |
| |
| //===--------------------------------------------------------------------===// |
| // Integer Promotion Support: LegalizeIntegerTypes.cpp |
| //===--------------------------------------------------------------------===// |
| |
| /// GetPromotedInteger - Given a processed operand Op which was promoted to a |
| /// larger integer type, this returns the promoted value. The low bits of the |
| /// promoted value corresponding to the original type are exactly equal to Op. |
| /// The extra bits contain rubbish, so the promoted value may need to be zero- |
| /// or sign-extended from the original type before it is usable (the helpers |
| /// SExtPromotedInteger and ZExtPromotedInteger can do this for you). |
| /// For example, if Op is an i16 and was promoted to an i32, then this method |
| /// returns an i32, the lower 16 bits of which coincide with Op, and the upper |
| /// 16 bits of which contain rubbish. |
| SDValue GetPromotedInteger(SDValue Op) { |
| SDValue &PromotedOp = PromotedIntegers[Op]; |
| RemapValue(PromotedOp); |
| assert(PromotedOp.getNode() && "Operand wasn't promoted?"); |
| return PromotedOp; |
| } |
| void SetPromotedInteger(SDValue Op, SDValue Result); |
| |
| /// SExtPromotedInteger - Get a promoted operand and sign extend it to the |
| /// final size. |
| SDValue SExtPromotedInteger(SDValue Op) { |
| EVT OldVT = Op.getValueType(); |
| DebugLoc dl = Op.getDebugLoc(); |
| Op = GetPromotedInteger(Op); |
| return DAG.getNode(ISD::SIGN_EXTEND_INREG, dl, Op.getValueType(), Op, |
| DAG.getValueType(OldVT)); |
| } |
| |
| /// ZExtPromotedInteger - Get a promoted operand and zero extend it to the |
| /// final size. |
| SDValue ZExtPromotedInteger(SDValue Op) { |
| EVT OldVT = Op.getValueType(); |
| DebugLoc dl = Op.getDebugLoc(); |
| Op = GetPromotedInteger(Op); |
| return DAG.getZeroExtendInReg(Op, dl, OldVT.getScalarType()); |
| } |
| |
| // Integer Result Promotion. |
| void PromoteIntegerResult(SDNode *N, unsigned ResNo); |
| SDValue PromoteIntRes_MERGE_VALUES(SDNode *N, unsigned ResNo); |
| SDValue PromoteIntRes_AssertSext(SDNode *N); |
| SDValue PromoteIntRes_AssertZext(SDNode *N); |
| SDValue PromoteIntRes_Atomic0(AtomicSDNode *N); |
| SDValue PromoteIntRes_Atomic1(AtomicSDNode *N); |
| SDValue PromoteIntRes_Atomic2(AtomicSDNode *N); |
| SDValue PromoteIntRes_EXTRACT_SUBVECTOR(SDNode *N); |
| SDValue PromoteIntRes_VECTOR_SHUFFLE(SDNode *N); |
| SDValue PromoteIntRes_BUILD_VECTOR(SDNode *N); |
| SDValue PromoteIntRes_SCALAR_TO_VECTOR(SDNode *N); |
| SDValue PromoteIntRes_INSERT_VECTOR_ELT(SDNode *N); |
| SDValue PromoteIntRes_CONCAT_VECTORS(SDNode *N); |
| SDValue PromoteIntRes_BITCAST(SDNode *N); |
| SDValue PromoteIntRes_BSWAP(SDNode *N); |
| SDValue PromoteIntRes_BUILD_PAIR(SDNode *N); |
| SDValue PromoteIntRes_Constant(SDNode *N); |
| SDValue PromoteIntRes_CONVERT_RNDSAT(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_FP32_TO_FP16(SDNode *N); |
| SDValue PromoteIntRes_INT_EXTEND(SDNode *N); |
| SDValue PromoteIntRes_LOAD(LoadSDNode *N); |
| SDValue PromoteIntRes_Overflow(SDNode *N); |
| SDValue PromoteIntRes_SADDSUBO(SDNode *N, unsigned ResNo); |
| SDValue PromoteIntRes_SDIV(SDNode *N); |
| SDValue PromoteIntRes_SELECT(SDNode *N); |
| SDValue PromoteIntRes_VSELECT(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_UADDSUBO(SDNode *N, unsigned ResNo); |
| SDValue PromoteIntRes_UDIV(SDNode *N); |
| SDValue PromoteIntRes_UNDEF(SDNode *N); |
| SDValue PromoteIntRes_VAARG(SDNode *N); |
| SDValue PromoteIntRes_XMULO(SDNode *N, unsigned ResNo); |
| |
| // Integer Operand Promotion. |
| bool PromoteIntegerOperand(SDNode *N, unsigned OperandNo); |
| SDValue PromoteIntOp_ANY_EXTEND(SDNode *N); |
| SDValue PromoteIntOp_ATOMIC_STORE(AtomicSDNode *N); |
| SDValue PromoteIntOp_BITCAST(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_CONVERT_RNDSAT(SDNode *N); |
| SDValue PromoteIntOp_INSERT_VECTOR_ELT(SDNode *N, unsigned OpNo); |
| SDValue PromoteIntOp_EXTRACT_ELEMENT(SDNode *N); |
| SDValue PromoteIntOp_EXTRACT_VECTOR_ELT(SDNode *N); |
| SDValue PromoteIntOp_CONCAT_VECTORS(SDNode *N); |
| SDValue PromoteIntOp_MEMBARRIER(SDNode *N); |
| SDValue PromoteIntOp_SCALAR_TO_VECTOR(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_VSETCC(SDNode *N, unsigned OpNo); |
| SDValue PromoteIntOp_Shift(SDNode *N); |
| SDValue PromoteIntOp_SIGN_EXTEND(SDNode *N); |
| SDValue PromoteIntOp_SINT_TO_FP(SDNode *N); |
| SDValue PromoteIntOp_STORE(StoreSDNode *N, unsigned OpNo); |
| SDValue PromoteIntOp_TRUNCATE(SDNode *N); |
| SDValue PromoteIntOp_UINT_TO_FP(SDNode *N); |
| SDValue PromoteIntOp_ZERO_EXTEND(SDNode *N); |
| |
| void PromoteSetCCOperands(SDValue &LHS,SDValue &RHS, ISD::CondCode Code); |
| |
| //===--------------------------------------------------------------------===// |
| // Integer Expansion Support: LegalizeIntegerTypes.cpp |
| //===--------------------------------------------------------------------===// |
| |
| /// GetExpandedInteger - Given a processed operand Op which was expanded into |
| /// two integers of half the size, this returns the two halves. The low bits |
| /// of Op are exactly equal to the bits of Lo; the high bits exactly equal Hi. |
| /// For example, if Op is an i64 which was expanded into two i32's, then this |
| /// method returns the two i32's, with Lo being equal to the lower 32 bits of |
| /// Op, and Hi being equal to the upper 32 bits. |
| 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_MERGE_VALUES (SDNode *N, unsigned ResNo, |
| SDValue &Lo, SDValue &Hi); |
| 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 ExpandIntRes_SADDSUBO (SDNode *N, SDValue &Lo, SDValue &Hi); |
| void ExpandIntRes_UADDSUBO (SDNode *N, SDValue &Lo, SDValue &Hi); |
| void ExpandIntRes_XMULO (SDNode *N, SDValue &Lo, SDValue &Hi); |
| |
| void ExpandIntRes_ATOMIC_LOAD (SDNode *N, SDValue &Lo, SDValue &Hi); |
| |
| void ExpandShiftByConstant(SDNode *N, unsigned Amt, |
| SDValue &Lo, SDValue &Hi); |
| bool ExpandShiftWithKnownAmountBit(SDNode *N, SDValue &Lo, SDValue &Hi); |
| bool ExpandShiftWithUnknownAmountBit(SDNode *N, SDValue &Lo, SDValue &Hi); |
| |
| // Integer Operand Expansion. |
| bool ExpandIntegerOperand(SDNode *N, unsigned OperandNo); |
| SDValue ExpandIntOp_BITCAST(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_Shift(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); |
| SDValue ExpandIntOp_RETURNADDR(SDNode *N); |
| SDValue ExpandIntOp_ATOMIC_STORE(SDNode *N); |
| |
| void IntegerExpandSetCCOperands(SDValue &NewLHS, SDValue &NewRHS, |
| ISD::CondCode &CCCode, DebugLoc dl); |
| |
| //===--------------------------------------------------------------------===// |
| // Float to Integer Conversion Support: LegalizeFloatTypes.cpp |
| //===--------------------------------------------------------------------===// |
| |
| /// GetSoftenedFloat - Given a processed operand Op which was converted to an |
| /// integer of the same size, this returns the integer. The integer contains |
| /// exactly the same bits as Op - only the type changed. For example, if Op |
| /// is an f32 which was softened to an i32, then this method returns an i32, |
| /// the bits of which coincide with those of Op. |
| SDValue GetSoftenedFloat(SDValue Op) { |
| SDValue &SoftenedOp = SoftenedFloats[Op]; |
| RemapValue(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_MERGE_VALUES(SDNode *N, unsigned ResNo); |
| SDValue SoftenFloatRes_BITCAST(SDNode *N); |
| SDValue SoftenFloatRes_BUILD_PAIR(SDNode *N); |
| SDValue SoftenFloatRes_ConstantFP(ConstantFPSDNode *N); |
| SDValue SoftenFloatRes_EXTRACT_VECTOR_ELT(SDNode *N); |
| SDValue SoftenFloatRes_FABS(SDNode *N); |
| SDValue SoftenFloatRes_FADD(SDNode *N); |
| SDValue SoftenFloatRes_FCEIL(SDNode *N); |
| SDValue SoftenFloatRes_FCOPYSIGN(SDNode *N); |
| SDValue SoftenFloatRes_FCOS(SDNode *N); |
| SDValue SoftenFloatRes_FDIV(SDNode *N); |
| SDValue SoftenFloatRes_FEXP(SDNode *N); |
| SDValue SoftenFloatRes_FEXP2(SDNode *N); |
| SDValue SoftenFloatRes_FFLOOR(SDNode *N); |
| SDValue SoftenFloatRes_FLOG(SDNode *N); |
| SDValue SoftenFloatRes_FLOG2(SDNode *N); |
| SDValue SoftenFloatRes_FLOG10(SDNode *N); |
| SDValue SoftenFloatRes_FMA(SDNode *N); |
| SDValue SoftenFloatRes_FMUL(SDNode *N); |
| SDValue SoftenFloatRes_FNEARBYINT(SDNode *N); |
| SDValue SoftenFloatRes_FNEG(SDNode *N); |
| SDValue SoftenFloatRes_FP_EXTEND(SDNode *N); |
| SDValue SoftenFloatRes_FP16_TO_FP32(SDNode *N); |
| SDValue SoftenFloatRes_FP_ROUND(SDNode *N); |
| SDValue SoftenFloatRes_FPOW(SDNode *N); |
| SDValue SoftenFloatRes_FPOWI(SDNode *N); |
| SDValue SoftenFloatRes_FREM(SDNode *N); |
| SDValue SoftenFloatRes_FRINT(SDNode *N); |
| SDValue SoftenFloatRes_FSIN(SDNode *N); |
| SDValue SoftenFloatRes_FSQRT(SDNode *N); |
| SDValue SoftenFloatRes_FSUB(SDNode *N); |
| SDValue SoftenFloatRes_FTRUNC(SDNode *N); |
| SDValue SoftenFloatRes_LOAD(SDNode *N); |
| SDValue SoftenFloatRes_SELECT(SDNode *N); |
| SDValue SoftenFloatRes_SELECT_CC(SDNode *N); |
| SDValue SoftenFloatRes_UNDEF(SDNode *N); |
| SDValue SoftenFloatRes_VAARG(SDNode *N); |
| SDValue SoftenFloatRes_XINT_TO_FP(SDNode *N); |
| |
| // Operand Float to Integer Conversion. |
| bool SoftenFloatOperand(SDNode *N, unsigned OpNo); |
| SDValue SoftenFloatOp_BITCAST(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_FP32_TO_FP16(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, DebugLoc dl); |
| |
| //===--------------------------------------------------------------------===// |
| // Float Expansion Support: LegalizeFloatTypes.cpp |
| //===--------------------------------------------------------------------===// |
| |
| /// GetExpandedFloat - Given a processed operand Op which was expanded into |
| /// two floating point values of half the size, this returns the two halves. |
| /// The low bits of Op are exactly equal to the bits of Lo; the high bits |
| /// exactly equal Hi. For example, if Op is a ppcf128 which was expanded |
| /// into two f64's, then this method returns the two f64's, with Lo being |
| /// equal to the lower 64 bits of Op, and Hi to the upper 64 bits. |
| 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_FCEIL (SDNode *N, SDValue &Lo, SDValue &Hi); |
| void ExpandFloatRes_FCOPYSIGN (SDNode *N, SDValue &Lo, SDValue &Hi); |
| void ExpandFloatRes_FCOS (SDNode *N, SDValue &Lo, SDValue &Hi); |
| void ExpandFloatRes_FDIV (SDNode *N, SDValue &Lo, SDValue &Hi); |
| void ExpandFloatRes_FEXP (SDNode *N, SDValue &Lo, SDValue &Hi); |
| void ExpandFloatRes_FEXP2 (SDNode *N, SDValue &Lo, SDValue &Hi); |
| void ExpandFloatRes_FFLOOR (SDNode *N, SDValue &Lo, SDValue &Hi); |
| void ExpandFloatRes_FLOG (SDNode *N, SDValue &Lo, SDValue &Hi); |
| void ExpandFloatRes_FLOG2 (SDNode *N, SDValue &Lo, SDValue &Hi); |
| void ExpandFloatRes_FLOG10 (SDNode *N, SDValue &Lo, SDValue &Hi); |
| void ExpandFloatRes_FMA (SDNode *N, SDValue &Lo, SDValue &Hi); |
| void ExpandFloatRes_FMUL (SDNode *N, SDValue &Lo, SDValue &Hi); |
| void ExpandFloatRes_FNEARBYINT(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_FPOW (SDNode *N, SDValue &Lo, SDValue &Hi); |
| void ExpandFloatRes_FPOWI (SDNode *N, SDValue &Lo, SDValue &Hi); |
| void ExpandFloatRes_FRINT (SDNode *N, SDValue &Lo, SDValue &Hi); |
| void ExpandFloatRes_FSIN (SDNode *N, SDValue &Lo, SDValue &Hi); |
| void ExpandFloatRes_FSQRT (SDNode *N, SDValue &Lo, SDValue &Hi); |
| void ExpandFloatRes_FSUB (SDNode *N, SDValue &Lo, SDValue &Hi); |
| void ExpandFloatRes_FTRUNC (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, DebugLoc dl); |
| |
| //===--------------------------------------------------------------------===// |
| // Scalarization Support: LegalizeVectorTypes.cpp |
| //===--------------------------------------------------------------------===// |
| |
| /// GetScalarizedVector - Given a processed one-element vector Op which was |
| /// scalarized to its element type, this returns the element. For example, |
| /// if Op is a v1i32, Op = < i32 val >, this method returns val, an i32. |
| SDValue GetScalarizedVector(SDValue Op) { |
| SDValue &ScalarizedOp = ScalarizedVectors[Op]; |
| RemapValue(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_MERGE_VALUES(SDNode *N, unsigned ResNo); |
| SDValue ScalarizeVecRes_BinOp(SDNode *N); |
| SDValue ScalarizeVecRes_UnaryOp(SDNode *N); |
| SDValue ScalarizeVecRes_InregOp(SDNode *N); |
| |
| SDValue ScalarizeVecRes_BITCAST(SDNode *N); |
| SDValue ScalarizeVecRes_CONVERT_RNDSAT(SDNode *N); |
| SDValue ScalarizeVecRes_EXTRACT_SUBVECTOR(SDNode *N); |
| SDValue ScalarizeVecRes_FP_ROUND(SDNode *N); |
| SDValue ScalarizeVecRes_FPOWI(SDNode *N); |
| SDValue ScalarizeVecRes_INSERT_VECTOR_ELT(SDNode *N); |
| SDValue ScalarizeVecRes_LOAD(LoadSDNode *N); |
| SDValue ScalarizeVecRes_SCALAR_TO_VECTOR(SDNode *N); |
| SDValue ScalarizeVecRes_SIGN_EXTEND_INREG(SDNode *N); |
| SDValue ScalarizeVecRes_SELECT(SDNode *N); |
| SDValue ScalarizeVecRes_SELECT_CC(SDNode *N); |
| SDValue ScalarizeVecRes_SETCC(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_BITCAST(SDNode *N); |
| SDValue ScalarizeVecOp_CONCAT_VECTORS(SDNode *N); |
| SDValue ScalarizeVecOp_EXTRACT_VECTOR_ELT(SDNode *N); |
| SDValue ScalarizeVecOp_STORE(StoreSDNode *N, unsigned OpNo); |
| |
| //===--------------------------------------------------------------------===// |
| // Vector Splitting Support: LegalizeVectorTypes.cpp |
| //===--------------------------------------------------------------------===// |
| |
| /// GetSplitVector - Given a processed vector Op which was split into vectors |
| /// of half the size, this method returns the halves. The first elements of |
| /// Op coincide with the elements of Lo; the remaining elements of Op coincide |
| /// with the elements of Hi: Op is what you would get by concatenating Lo and |
| /// Hi. For example, if Op is a v8i32 that was split into two v4i32's, then |
| /// this method returns the two v4i32's, with Lo corresponding to the first 4 |
| /// elements of Op, and Hi to the last 4 elements. |
| 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_InregOp(SDNode *N, SDValue &Lo, SDValue &Hi); |
| |
| void SplitVecRes_BITCAST(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_EXTRACT_SUBVECTOR(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_SCALAR_TO_VECTOR(SDNode *N, SDValue &Lo, SDValue &Hi); |
| void SplitVecRes_SIGN_EXTEND_INREG(SDNode *N, SDValue &Lo, SDValue &Hi); |
| void SplitVecRes_SETCC(SDNode *N, SDValue &Lo, SDValue &Hi); |
| void SplitVecRes_UNDEF(SDNode *N, SDValue &Lo, SDValue &Hi); |
| void SplitVecRes_VECTOR_SHUFFLE(ShuffleVectorSDNode *N, SDValue &Lo, |
| SDValue &Hi); |
| |
| // Vector Operand Splitting: <128 x ty> -> 2 x <64 x ty>. |
| bool SplitVectorOperand(SDNode *N, unsigned OpNo); |
| SDValue SplitVecOp_UnaryOp(SDNode *N); |
| |
| SDValue SplitVecOp_BITCAST(SDNode *N); |
| SDValue SplitVecOp_EXTRACT_SUBVECTOR(SDNode *N); |
| SDValue SplitVecOp_EXTRACT_VECTOR_ELT(SDNode *N); |
| SDValue SplitVecOp_STORE(StoreSDNode *N, unsigned OpNo); |
| SDValue SplitVecOp_CONCAT_VECTORS(SDNode *N); |
| SDValue SplitVecOp_VSETCC(SDNode *N); |
| SDValue SplitVecOp_FP_ROUND(SDNode *N); |
| |
| //===--------------------------------------------------------------------===// |
| // Vector Widening Support: LegalizeVectorTypes.cpp |
| //===--------------------------------------------------------------------===// |
| |
| /// GetWidenedVector - Given a processed vector Op which was widened into a |
| /// larger vector, this method returns the larger vector. The elements of |
| /// the returned vector consist of the elements of Op followed by elements |
| /// containing rubbish. For example, if Op is a v2i32 that was widened to a |
| /// v4i32, then this method returns a v4i32 for which the first two elements |
| /// are the same as those of Op, while the last two elements contain rubbish. |
| SDValue GetWidenedVector(SDValue Op) { |
| SDValue &WidenedOp = WidenedVectors[Op]; |
| RemapValue(WidenedOp); |
| assert(WidenedOp.getNode() && "Operand wasn't widened?"); |
| return WidenedOp; |
| } |
| void SetWidenedVector(SDValue Op, SDValue Result); |
| |
| // Widen Vector Result Promotion. |
| void WidenVectorResult(SDNode *N, unsigned ResNo); |
| SDValue WidenVecRes_MERGE_VALUES(SDNode* N, unsigned ResNo); |
| SDValue WidenVecRes_BITCAST(SDNode* N); |
| SDValue WidenVecRes_BUILD_VECTOR(SDNode* N); |
| SDValue WidenVecRes_CONCAT_VECTORS(SDNode* N); |
| SDValue WidenVecRes_CONVERT_RNDSAT(SDNode* N); |
| SDValue WidenVecRes_EXTRACT_SUBVECTOR(SDNode* N); |
| SDValue WidenVecRes_INSERT_VECTOR_ELT(SDNode* N); |
| SDValue WidenVecRes_LOAD(SDNode* N); |
| SDValue WidenVecRes_SCALAR_TO_VECTOR(SDNode* N); |
| SDValue WidenVecRes_SIGN_EXTEND_INREG(SDNode* N); |
| SDValue WidenVecRes_SELECT(SDNode* N); |
| SDValue WidenVecRes_SELECT_CC(SDNode* N); |
| SDValue WidenVecRes_SETCC(SDNode* N); |
| SDValue WidenVecRes_UNDEF(SDNode *N); |
| SDValue WidenVecRes_VECTOR_SHUFFLE(ShuffleVectorSDNode *N); |
| SDValue WidenVecRes_VSETCC(SDNode* N); |
| |
| SDValue WidenVecRes_Binary(SDNode *N); |
| SDValue WidenVecRes_Convert(SDNode *N); |
| SDValue WidenVecRes_POWI(SDNode *N); |
| SDValue WidenVecRes_Shift(SDNode *N); |
| SDValue WidenVecRes_Unary(SDNode *N); |
| SDValue WidenVecRes_InregOp(SDNode *N); |
| |
| // Widen Vector Operand. |
| bool WidenVectorOperand(SDNode *N, unsigned ResNo); |
| SDValue WidenVecOp_BITCAST(SDNode *N); |
| SDValue WidenVecOp_CONCAT_VECTORS(SDNode *N); |
| SDValue WidenVecOp_EXTRACT_VECTOR_ELT(SDNode *N); |
| SDValue WidenVecOp_EXTRACT_SUBVECTOR(SDNode *N); |
| SDValue WidenVecOp_STORE(SDNode* N); |
| |
| SDValue WidenVecOp_Convert(SDNode *N); |
| |
| //===--------------------------------------------------------------------===// |
| // Vector Widening Utilities Support: LegalizeVectorTypes.cpp |
| //===--------------------------------------------------------------------===// |
| |
| /// Helper GenWidenVectorLoads - Helper function to generate a set of |
| /// loads to load a vector with a resulting wider type. It takes |
| /// LdChain: list of chains for the load to be generated. |
| /// Ld: load to widen |
| SDValue GenWidenVectorLoads(SmallVector<SDValue, 16>& LdChain, |
| LoadSDNode *LD); |
| |
| /// GenWidenVectorExtLoads - Helper function to generate a set of extension |
| /// loads to load a ector with a resulting wider type. It takes |
| /// LdChain: list of chains for the load to be generated. |
| /// Ld: load to widen |
| /// ExtType: extension element type |
| SDValue GenWidenVectorExtLoads(SmallVector<SDValue, 16>& LdChain, |
| LoadSDNode *LD, ISD::LoadExtType ExtType); |
| |
| /// Helper genWidenVectorStores - Helper function to generate a set of |
| /// stores to store a widen vector into non widen memory |
| /// StChain: list of chains for the stores we have generated |
| /// ST: store of a widen value |
| void GenWidenVectorStores(SmallVector<SDValue, 16>& StChain, StoreSDNode *ST); |
| |
| /// Helper genWidenVectorTruncStores - Helper function to generate a set of |
| /// stores to store a truncate widen vector into non widen memory |
| /// StChain: list of chains for the stores we have generated |
| /// ST: store of a widen value |
| void GenWidenVectorTruncStores(SmallVector<SDValue, 16>& StChain, |
| StoreSDNode *ST); |
| |
| /// Modifies a vector input (widen or narrows) to a vector of NVT. The |
| /// input vector must have the same element type as NVT. |
| SDValue ModifyToType(SDValue InOp, EVT WidenVT); |
| |
| |
| //===--------------------------------------------------------------------===// |
| // 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(EVT InVT, EVT &LoVT, EVT &HiVT); |
| |
| /// GetPairElements - Use ISD::EXTRACT_ELEMENT nodes to extract the low and |
| /// high parts of the given value. |
| void GetPairElements(SDValue Pair, SDValue &Lo, SDValue &Hi); |
| |
| // Generic Result Splitting. |
| void SplitRes_MERGE_VALUES(SDNode *N, unsigned ResNo, |
| 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_MERGE_VALUES (SDNode *N, unsigned ResNo, |
| SDValue &Lo, SDValue &Hi); |
| void ExpandRes_BITCAST (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); |
| void ExpandRes_VAARG (SDNode *N, SDValue &Lo, SDValue &Hi); |
| |
| // Generic Operand Expansion. |
| SDValue ExpandOp_BITCAST (SDNode *N); |
| SDValue ExpandOp_BUILD_VECTOR (SDNode *N); |
| SDValue ExpandOp_EXTRACT_ELEMENT (SDNode *N); |
| SDValue ExpandOp_INSERT_VECTOR_ELT(SDNode *N); |
| SDValue ExpandOp_SCALAR_TO_VECTOR (SDNode *N); |
| SDValue ExpandOp_NormalStore (SDNode *N, unsigned OpNo); |
| }; |
| |
| } // end namespace llvm. |
| |
| #endif |