LLVM API Documentation
#include <MipsSEISelLowering.h>
Public Member Functions | |
MipsSETargetLowering (MipsTargetMachine &TM) | |
void | addMSAIntType (MVT::SimpleValueType Ty, const TargetRegisterClass *RC) |
Enable MSA support for the given integer type and Register class. More... | |
void | addMSAFloatType (MVT::SimpleValueType Ty, const TargetRegisterClass *RC) |
Enable MSA support for the given floating-point type and Register class. More... | |
virtual bool | allowsUnalignedMemoryAccesses (EVT VT, bool *Fast) const |
Determine if the target supports unaligned memory accesses. More... | |
virtual SDValue | LowerOperation (SDValue Op, SelectionDAG &DAG) const |
LowerOperation - Provide custom lowering hooks for some operations. More... | |
virtual SDValue | PerformDAGCombine (SDNode *N, DAGCombinerInfo &DCI) const |
virtual MachineBasicBlock * | EmitInstrWithCustomInserter (MachineInstr *MI, MachineBasicBlock *MBB) const |
virtual bool | isShuffleMaskLegal (const SmallVectorImpl< int > &Mask, EVT VT) const |
virtual const TargetRegisterClass * | getRepRegClassFor (MVT VT) const |
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MipsTargetLowering (MipsTargetMachine &TM) | |
virtual MVT | getScalarShiftAmountTy (EVT LHSTy) const |
virtual void | LowerOperationWrapper (SDNode *N, SmallVectorImpl< SDValue > &Results, SelectionDAG &DAG) const |
virtual void | ReplaceNodeResults (SDNode *N, SmallVectorImpl< SDValue > &Results, SelectionDAG &DAG) const |
virtual const char * | getTargetNodeName (unsigned Opcode) const |
getTargetNodeName - This method returns the name of a target specific More... | |
EVT | getSetCCResultType (LLVMContext &Context, EVT VT) const |
getSetCCResultType - get the ISD::SETCC result ValueType More... | |
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TargetLowering (const TargetMachine &TM, const TargetLoweringObjectFile *TLOF) | |
NOTE: The constructor takes ownership of TLOF. More... | |
virtual bool | getPreIndexedAddressParts (SDNode *, SDValue &, SDValue &, ISD::MemIndexedMode &, SelectionDAG &) const |
virtual bool | getPostIndexedAddressParts (SDNode *, SDNode *, SDValue &, SDValue &, ISD::MemIndexedMode &, SelectionDAG &) const |
virtual const MCExpr * | LowerCustomJumpTableEntry (const MachineJumpTableInfo *, const MachineBasicBlock *, unsigned, MCContext &) const |
virtual SDValue | getPICJumpTableRelocBase (SDValue Table, SelectionDAG &DAG) const |
Returns relocation base for the given PIC jumptable. More... | |
virtual const MCExpr * | getPICJumpTableRelocBaseExpr (const MachineFunction *MF, unsigned JTI, MCContext &Ctx) const |
bool | isInTailCallPosition (SelectionDAG &DAG, SDNode *Node, SDValue &Chain) const |
void | softenSetCCOperands (SelectionDAG &DAG, EVT VT, SDValue &NewLHS, SDValue &NewRHS, ISD::CondCode &CCCode, SDLoc DL) const |
std::pair< SDValue, SDValue > | makeLibCall (SelectionDAG &DAG, RTLIB::Libcall LC, EVT RetVT, const SDValue *Ops, unsigned NumOps, bool isSigned, SDLoc dl, bool doesNotReturn=false, bool isReturnValueUsed=true) const |
Returns a pair of (return value, chain). More... | |
bool | SimplifyDemandedBits (SDValue Op, const APInt &DemandedMask, APInt &KnownZero, APInt &KnownOne, TargetLoweringOpt &TLO, unsigned Depth=0) const |
virtual void | computeMaskedBitsForTargetNode (const SDValue Op, APInt &KnownZero, APInt &KnownOne, const SelectionDAG &DAG, unsigned Depth=0) const |
virtual unsigned | ComputeNumSignBitsForTargetNode (SDValue Op, unsigned Depth=0) const |
SDValue | SimplifySetCC (EVT VT, SDValue N0, SDValue N1, ISD::CondCode Cond, bool foldBooleans, DAGCombinerInfo &DCI, SDLoc dl) const |
virtual bool | isGAPlusOffset (SDNode *N, const GlobalValue *&GA, int64_t &Offset) const |
virtual bool | isTypeDesirableForOp (unsigned, EVT VT) const |
virtual bool | isDesirableToTransformToIntegerOp (unsigned, EVT) const |
virtual bool | IsDesirableToPromoteOp (SDValue, EVT &) const |
std::pair< SDValue, SDValue > | LowerCallTo (CallLoweringInfo &CLI) const |
virtual void | HandleByVal (CCState *, unsigned &, unsigned) const |
Target-specific cleanup for formal ByVal parameters. More... | |
virtual bool | isUsedByReturnOnly (SDNode *, SDValue &) const |
virtual bool | mayBeEmittedAsTailCall (CallInst *) const |
virtual MVT | getTypeForExtArgOrReturn (MVT VT, ISD::NodeType) const |
virtual const uint16_t * | getScratchRegisters (CallingConv::ID CC) const |
virtual FastISel * | createFastISel (FunctionLoweringInfo &, const TargetLibraryInfo *) const |
virtual bool | ExpandInlineAsm (CallInst *) const |
virtual AsmOperandInfoVector | ParseConstraints (ImmutableCallSite CS) const |
virtual ConstraintWeight | getMultipleConstraintMatchWeight (AsmOperandInfo &info, int maIndex) const |
virtual void | ComputeConstraintToUse (AsmOperandInfo &OpInfo, SDValue Op, SelectionDAG *DAG=0) const |
virtual const char * | LowerXConstraint (EVT ConstraintVT) const |
SDValue | BuildExactSDIV (SDValue Op1, SDValue Op2, SDLoc dl, SelectionDAG &DAG) const |
Given an exact SDIV by a constant, create a multiplication with the multiplicative inverse of the constant. More... | |
SDValue | BuildSDIV (SDNode *N, SelectionDAG &DAG, bool IsAfterLegalization, std::vector< SDNode * > *Created) const |
Given an ISD::SDIV node expressing a divide by constant, return a DAG expression to select that will generate the same value by multiplying by a magic number. See: http://the.wall.riscom.net/books/proc/ppc/cwg/code2.html More... | |
SDValue | BuildUDIV (SDNode *N, SelectionDAG &DAG, bool IsAfterLegalization, std::vector< SDNode * > *Created) const |
Given an ISD::UDIV node expressing a divide by constant, return a DAG expression to select that will generate the same value by multiplying by a magic number. See: http://the.wall.riscom.net/books/proc/ppc/cwg/code2.html More... | |
virtual void | AdjustInstrPostInstrSelection (MachineInstr *MI, SDNode *Node) const |
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TargetLoweringBase (const TargetMachine &TM, const TargetLoweringObjectFile *TLOF) | |
NOTE: The constructor takes ownership of TLOF. More... | |
virtual | ~TargetLoweringBase () |
const TargetMachine & | getTargetMachine () const |
const DataLayout * | getDataLayout () const |
const TargetLoweringObjectFile & | getObjFileLowering () const |
bool | isBigEndian () const |
bool | isLittleEndian () const |
virtual MVT | getPointerTy (uint32_t=0) const |
unsigned | getPointerSizeInBits (uint32_t AS=0) const |
unsigned | getPointerTypeSizeInBits (Type *Ty) const |
EVT | getShiftAmountTy (EVT LHSTy) const |
virtual MVT | getVectorIdxTy () const |
bool | isSelectExpensive () const |
Return true if the select operation is expensive for this target. More... | |
virtual bool | isSelectSupported (SelectSupportKind) const |
virtual bool | shouldSplitVectorElementType (EVT) const |
bool | isIntDivCheap () const |
bool | isSlowDivBypassed () const |
Returns true if target has indicated at least one type should be bypassed. More... | |
const DenseMap< unsigned int, unsigned int > & | getBypassSlowDivWidths () const |
bool | isPow2DivCheap () const |
Return true if pow2 div is cheaper than a chain of srl/add/sra. More... | |
bool | isJumpExpensive () const |
bool | isPredictableSelectExpensive () const |
virtual bool | isLoadBitCastBeneficial (EVT, EVT) const |
virtual MVT::SimpleValueType | getCmpLibcallReturnType () const |
BooleanContent | getBooleanContents (bool isVec) const |
Sched::Preference | getSchedulingPreference () const |
Return target scheduling preference. More... | |
virtual Sched::Preference | getSchedulingPreference (SDNode *) const |
virtual const TargetRegisterClass * | getRegClassFor (MVT VT) const |
virtual uint8_t | getRepRegClassCostFor (MVT VT) const |
bool | isTypeLegal (EVT VT) const |
const ValueTypeActionImpl & | getValueTypeActions () const |
LegalizeTypeAction | getTypeAction (LLVMContext &Context, EVT VT) const |
LegalizeTypeAction | getTypeAction (MVT VT) const |
EVT | getTypeToTransformTo (LLVMContext &Context, EVT VT) const |
EVT | getTypeToExpandTo (LLVMContext &Context, EVT VT) const |
unsigned | getVectorTypeBreakdown (LLVMContext &Context, EVT VT, EVT &IntermediateVT, unsigned &NumIntermediates, MVT &RegisterVT) const |
virtual bool | getTgtMemIntrinsic (IntrinsicInfo &, const CallInst &, unsigned) const |
virtual bool | canOpTrap (unsigned Op, EVT VT) const |
virtual bool | isVectorClearMaskLegal (const SmallVectorImpl< int > &, EVT) const |
LegalizeAction | getOperationAction (unsigned Op, EVT VT) const |
bool | isOperationLegalOrCustom (unsigned Op, EVT VT) const |
bool | isOperationLegalOrPromote (unsigned Op, EVT VT) const |
bool | isOperationExpand (unsigned Op, EVT VT) const |
bool | isOperationLegal (unsigned Op, EVT VT) const |
Return true if the specified operation is legal on this target. More... | |
LegalizeAction | getLoadExtAction (unsigned ExtType, MVT VT) const |
bool | isLoadExtLegal (unsigned ExtType, EVT VT) const |
Return true if the specified load with extension is legal on this target. More... | |
LegalizeAction | getTruncStoreAction (MVT ValVT, MVT MemVT) const |
bool | isTruncStoreLegal (EVT ValVT, EVT MemVT) const |
LegalizeAction | getIndexedLoadAction (unsigned IdxMode, MVT VT) const |
bool | isIndexedLoadLegal (unsigned IdxMode, EVT VT) const |
Return true if the specified indexed load is legal on this target. More... | |
LegalizeAction | getIndexedStoreAction (unsigned IdxMode, MVT VT) const |
bool | isIndexedStoreLegal (unsigned IdxMode, EVT VT) const |
Return true if the specified indexed load is legal on this target. More... | |
LegalizeAction | getCondCodeAction (ISD::CondCode CC, MVT VT) const |
bool | isCondCodeLegal (ISD::CondCode CC, MVT VT) const |
Return true if the specified condition code is legal on this target. More... | |
MVT | getTypeToPromoteTo (unsigned Op, MVT VT) const |
EVT | getValueType (Type *Ty, bool AllowUnknown=false) const |
MVT | getSimpleValueType (Type *Ty, bool AllowUnknown=false) const |
Return the MVT corresponding to this LLVM type. See getValueType. More... | |
virtual unsigned | getByValTypeAlignment (Type *Ty) const |
MVT | getRegisterType (MVT VT) const |
Return the type of registers that this ValueType will eventually require. More... | |
MVT | getRegisterType (LLVMContext &Context, EVT VT) const |
Return the type of registers that this ValueType will eventually require. More... | |
unsigned | getNumRegisters (LLVMContext &Context, EVT VT) const |
virtual bool | ShouldShrinkFPConstant (EVT) const |
bool | hasTargetDAGCombine (ISD::NodeType NT) const |
unsigned | getMaxStoresPerMemset (bool OptSize) const |
Get maximum # of store operations permitted for llvm.memset. More... | |
unsigned | getMaxStoresPerMemcpy (bool OptSize) const |
Get maximum # of store operations permitted for llvm.memcpy. More... | |
unsigned | getMaxStoresPerMemmove (bool OptSize) const |
Get maximum # of store operations permitted for llvm.memmove. More... | |
virtual bool | isSafeMemOpType (MVT) const |
bool | usesUnderscoreSetJmp () const |
Determine if we should use _setjmp or setjmp to implement llvm.setjmp. More... | |
bool | usesUnderscoreLongJmp () const |
Determine if we should use _longjmp or longjmp to implement llvm.longjmp. More... | |
bool | supportJumpTables () const |
Return whether the target can generate code for jump tables. More... | |
int | getMinimumJumpTableEntries () const |
unsigned | getStackPointerRegisterToSaveRestore () const |
unsigned | getExceptionPointerRegister () const |
unsigned | getExceptionSelectorRegister () const |
unsigned | getJumpBufSize () const |
unsigned | getJumpBufAlignment () const |
unsigned | getMinStackArgumentAlignment () const |
Return the minimum stack alignment of an argument. More... | |
unsigned | getMinFunctionAlignment () const |
Return the minimum function alignment. More... | |
unsigned | getPrefFunctionAlignment () const |
Return the preferred function alignment. More... | |
unsigned | getPrefLoopAlignment () const |
Return the preferred loop alignment. More... | |
bool | getInsertFencesForAtomic () const |
virtual bool | getStackCookieLocation (unsigned &, unsigned &) const |
virtual unsigned | getMaximalGlobalOffset () const |
virtual bool | isNoopAddrSpaceCast (unsigned SrcAS, unsigned DestAS) const |
Returns true if a cast between SrcAS and DestAS is a noop. More... | |
virtual void | resetOperationActions () |
Reset the operation actions based on target options. More... | |
virtual bool | GetAddrModeArguments (IntrinsicInst *, SmallVectorImpl< Value * > &, Type *&) const |
virtual int | getScalingFactorCost (const AddrMode &AM, Type *Ty) const |
Return the cost of the scaling factor used in the addressing mode represented by AM for this target, for a load/store of the specified type. More... | |
virtual bool | isLegalICmpImmediate (int64_t) const |
virtual bool | isLegalAddImmediate (int64_t) const |
virtual bool | isTruncateFree (Type *, Type *) const |
virtual bool | allowTruncateForTailCall (Type *, Type *) const |
virtual bool | isTruncateFree (EVT, EVT) const |
virtual bool | isZExtFree (Type *, Type *) const |
virtual bool | isZExtFree (EVT, EVT) const |
virtual bool | hasPairedLoad (Type *, unsigned &) const |
virtual bool | hasPairedLoad (EVT, unsigned &) const |
virtual bool | isZExtFree (SDValue Val, EVT VT2) const |
virtual bool | isFNegFree (EVT VT) const |
virtual bool | isFAbsFree (EVT VT) const |
virtual bool | isFMAFasterThanFMulAndFAdd (EVT) const |
virtual bool | isNarrowingProfitable (EVT, EVT) const |
void | setLibcallName (RTLIB::Libcall Call, const char *Name) |
Rename the default libcall routine name for the specified libcall. More... | |
const char * | getLibcallName (RTLIB::Libcall Call) const |
Get the libcall routine name for the specified libcall. More... | |
void | setCmpLibcallCC (RTLIB::Libcall Call, ISD::CondCode CC) |
ISD::CondCode | getCmpLibcallCC (RTLIB::Libcall Call) const |
void | setLibcallCallingConv (RTLIB::Libcall Call, CallingConv::ID CC) |
Set the CallingConv that should be used for the specified libcall. More... | |
CallingConv::ID | getLibcallCallingConv (RTLIB::Libcall Call) const |
Get the CallingConv that should be used for the specified libcall. More... | |
LegalizeKind | getTypeConversion (LLVMContext &Context, EVT VT) const |
int | InstructionOpcodeToISD (unsigned Opcode) const |
Get the ISD node that corresponds to the Instruction class opcode. More... | |
std::pair< unsigned, MVT > | getTypeLegalizationCost (Type *Ty) const |
Estimate the cost of type-legalization and the legalized type. More... | |
Definition at line 21 of file MipsSEISelLowering.h.
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Definition at line 36 of file MipsSEISelLowering.cpp.
References llvm::ISD::ADD, llvm::ISD::ADDE, addMSAFloatType(), addMSAIntType(), llvm::TargetLoweringBase::addRegisterClass(), llvm::ISD::AND, llvm::array_lengthof(), llvm::ISD::ATOMIC_FENCE, llvm::ISD::BITCAST, llvm::ISD::BUILTIN_OP_END, llvm::TargetLoweringBase::computeRegisterProperties(), llvm::TargetLoweringBase::Custom, llvm::TargetLoweringBase::Expand, llvm::ISD::EXTLOAD, llvm::MVT::f32, llvm::MVT::f64, llvm::MVT::FIRST_VECTOR_VALUETYPE, llvm::MipsSubtarget::hasDSP(), llvm::MipsSubtarget::hasDSPR2(), llvm::MipsTargetLowering::HasMips64, llvm::MipsSubtarget::hasMSA(), llvm::MVT::i32, llvm::MVT::i64, llvm::ISD::INTRINSIC_VOID, llvm::ISD::INTRINSIC_W_CHAIN, llvm::ISD::INTRINSIC_WO_CHAIN, llvm::MipsSubtarget::isFP64bit(), llvm::MipsSubtarget::isSingleFloat(), llvm::MVT::LAST_VECTOR_VALUETYPE, llvm::TargetLoweringBase::Legal, llvm::ISD::LOAD, llvm::MipsSubtarget::mipsSEUsesSoftFloat(), llvm::ISD::MUL, llvm::ISD::MULHS, llvm::ISD::MULHU, NoDPLoadStore, llvm::ISD::OR, llvm::MVT::Other, llvm::ISD::SDIVREM, llvm::ISD::SETCC, llvm::TargetLoweringBase::setLoadExtAction(), llvm::TargetLoweringBase::setOperationAction(), llvm::TargetLoweringBase::setTargetDAGCombine(), llvm::TargetLoweringBase::setTruncStoreAction(), llvm::ISD::SEXTLOAD, llvm::ISD::SHL, llvm::ISD::SMUL_LOHI, llvm::ISD::SRA, llvm::ISD::SRL, llvm::ISD::STORE, llvm::ISD::SUB, llvm::ISD::SUBE, llvm::MipsTargetLowering::Subtarget, llvm::ISD::UDIVREM, llvm::ISD::UMUL_LOHI, llvm::MVT::v16i8, llvm::MVT::v2f64, llvm::MVT::v2i16, llvm::MVT::v2i64, llvm::MVT::v4f32, llvm::MVT::v4i32, llvm::MVT::v4i8, llvm::MVT::v8f16, llvm::MVT::v8i16, llvm::ISD::VSELECT, llvm::ISD::XOR, and llvm::ISD::ZEXTLOAD.
void MipsSETargetLowering::addMSAFloatType | ( | MVT::SimpleValueType | Ty, |
const TargetRegisterClass * | RC | ||
) |
Enable MSA support for the given floating-point type and Register class.
Definition at line 209 of file MipsSEISelLowering.cpp.
References llvm::TargetLoweringBase::addRegisterClass(), llvm::ISD::BITCAST, llvm::ISD::BUILD_VECTOR, llvm::ISD::BUILTIN_OP_END, llvm::TargetLoweringBase::Custom, llvm::TargetLoweringBase::Expand, llvm::ISD::EXTRACT_VECTOR_ELT, llvm::ISD::FABS, llvm::ISD::FADD, llvm::ISD::FDIV, llvm::ISD::FEXP2, llvm::ISD::FLOG2, llvm::ISD::FMA, llvm::ISD::FMUL, llvm::ISD::FRINT, llvm::ISD::FSQRT, llvm::ISD::FSUB, llvm::ISD::INSERT_VECTOR_ELT, llvm::TargetLoweringBase::Legal, llvm::ISD::LOAD, llvm::ISD::SETCC, llvm::TargetLoweringBase::setCondCodeAction(), llvm::ISD::SETGE, llvm::ISD::SETGT, llvm::ISD::SETOGE, llvm::ISD::SETOGT, llvm::TargetLoweringBase::setOperationAction(), llvm::ISD::SETUGE, llvm::ISD::SETUGT, llvm::ISD::STORE, llvm::MVT::v8f16, and llvm::ISD::VSELECT.
Referenced by MipsSETargetLowering().
void MipsSETargetLowering::addMSAIntType | ( | MVT::SimpleValueType | Ty, |
const TargetRegisterClass * | RC | ||
) |
Enable MSA support for the given integer type and Register class.
Definition at line 160 of file MipsSEISelLowering.cpp.
References llvm::ISD::ADD, llvm::TargetLoweringBase::addRegisterClass(), llvm::ISD::AND, llvm::ISD::BITCAST, llvm::ISD::BUILD_VECTOR, llvm::ISD::BUILTIN_OP_END, llvm::ISD::CTLZ, llvm::ISD::CTPOP, llvm::TargetLoweringBase::Custom, llvm::TargetLoweringBase::Expand, llvm::ISD::EXTRACT_VECTOR_ELT, llvm::ISD::FP_TO_SINT, llvm::ISD::FP_TO_UINT, llvm::ISD::INSERT_VECTOR_ELT, llvm::TargetLoweringBase::Legal, llvm::ISD::LOAD, llvm::ISD::MUL, llvm::ISD::OR, llvm::ISD::SDIV, llvm::ISD::SETCC, llvm::TargetLoweringBase::setCondCodeAction(), llvm::ISD::SETGE, llvm::ISD::SETGT, llvm::ISD::SETNE, llvm::TargetLoweringBase::setOperationAction(), llvm::ISD::SETUGE, llvm::ISD::SETUGT, llvm::ISD::SHL, llvm::ISD::SINT_TO_FP, llvm::ISD::SRA, llvm::ISD::SREM, llvm::ISD::SRL, llvm::ISD::STORE, llvm::ISD::SUB, llvm::ISD::UDIV, llvm::ISD::UINT_TO_FP, llvm::ISD::UREM, llvm::MVT::v2i64, llvm::MVT::v4i32, llvm::ISD::VECTOR_SHUFFLE, llvm::ISD::VSELECT, and llvm::ISD::XOR.
Referenced by MipsSETargetLowering().
Determine if the target supports unaligned memory accesses.
This function returns true if the target allows unaligned memory accesses. of the specified type. If true, it also returns whether the unaligned memory access is "fast" in the second argument by reference. This is used, for example, in situations where an array copy/move/set is converted to a sequence of store operations. It's use helps to ensure that such replacements don't generate code that causes an alignment error (trap) on the target machine.
Reimplemented from llvm::TargetLoweringBase.
Definition at line 247 of file MipsSEISelLowering.cpp.
References llvm::EVT::getSimpleVT(), llvm::MVT::i32, llvm::MVT::i64, and llvm::MVT::SimpleTy.
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This method should be implemented by targets that mark instructions with the 'usesCustomInserter' flag. These instructions are special in various ways, which require special support to insert. The specified MachineInstr is created but not inserted into any basic blocks, and this method is called to expand it into a sequence of instructions, potentially also creating new basic blocks and control flow.
Reimplemented from llvm::MipsTargetLowering.
Definition at line 1013 of file MipsSEISelLowering.cpp.
References llvm::MipsTargetLowering::EmitInstrWithCustomInserter(), and llvm::MachineInstr::getOpcode().
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Return the 'representative' register class for the specified value type.
The 'representative' register class is the largest legal super-reg register class for the register class of the value type. For example, on i386 the rep register class for i8, i16, and i32 are GR32; while the rep register class is GR64 on x86_64.
Reimplemented from llvm::TargetLoweringBase.
Definition at line 47 of file MipsSEISelLowering.h.
References llvm::TargetLoweringBase::getRepRegClassFor(), llvm::MipsSubtarget::hasDSP(), llvm::MipsTargetLowering::Subtarget, and llvm::MVT::Untyped.
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Targets can use this to indicate that they only support some VECTOR_SHUFFLE operations, those with specific masks. By default, if a target supports the VECTOR_SHUFFLE node, all mask values are assumed to be legal.
Reimplemented from llvm::TargetLoweringBase.
Definition at line 42 of file MipsSEISelLowering.h.
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LowerOperation - Provide custom lowering hooks for some operations.
Reimplemented from llvm::MipsTargetLowering.
Definition at line 261 of file MipsSEISelLowering.cpp.
References llvm::ISD::BUILD_VECTOR, llvm::MipsISD::DivRem, llvm::MipsISD::DivRemU, llvm::ISD::EXTRACT_VECTOR_ELT, llvm::SDValue::getOpcode(), llvm::ISD::INTRINSIC_VOID, llvm::ISD::INTRINSIC_W_CHAIN, llvm::ISD::INTRINSIC_WO_CHAIN, llvm::ISD::LOAD, llvm::MipsTargetLowering::LowerOperation(), llvm::ISD::MUL, llvm::ISD::MULHS, llvm::ISD::MULHU, llvm::MipsISD::Mult, llvm::MipsISD::Multu, llvm::ISD::SDIVREM, llvm::ISD::SMUL_LOHI, llvm::ISD::STORE, llvm::ISD::UDIVREM, llvm::ISD::UMUL_LOHI, and llvm::ISD::VECTOR_SHUFFLE.
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This method will be invoked for all target nodes and for any target-independent nodes that the target has registered with invoke it for.
The semantics are as follows: Return Value: SDValue.Val == 0 - No change was made SDValue.Val == N - N was replaced, is dead, and is already handled. otherwise - N should be replaced by the returned Operand.
In addition, methods provided by DAGCombinerInfo may be used to perform more complex transformations.
Reimplemented from llvm::MipsTargetLowering.
Definition at line 967 of file MipsSEISelLowering.cpp.
References llvm::ISD::ADDE, llvm::ISD::AND, llvm::TargetLowering::DAGCombinerInfo::DAG, llvm::dbgs(), DEBUG, llvm::SDValue::getNode(), llvm::SDNode::getOpcode(), llvm::ISD::MUL, llvm::ISD::OR, performADDECombine(), performANDCombine(), llvm::MipsTargetLowering::PerformDAGCombine(), performMULCombine(), performORCombine(), performSETCCCombine(), performSHLCombine(), performSRACombine(), performSRLCombine(), performSUBECombine(), performVSELECTCombine(), performXORCombine(), llvm::SDNode::printrWithDepth(), llvm::ISD::SETCC, llvm::ISD::SHL, llvm::ISD::SRA, llvm::ISD::SRL, llvm::ISD::SUBE, llvm::MipsTargetLowering::Subtarget, llvm::ISD::VSELECT, and llvm::ISD::XOR.