///
/// Many APIs in this interface return a cost. This enum defines the
/// fundamental values that should be used to interpret (and produce) those
- /// costs. The costs are returned as an unsigned rather than a member of this
+ /// costs. The costs are returned as an int rather than a member of this
/// enumeration because it is expected that the cost of one IR instruction
/// may have a multiplicative factor to it or otherwise won't fit directly
/// into the enum. Moreover, it is common to sum or average costs which works
/// better as simple integral values. Thus this enum only provides constants.
+ /// Also note that the returned costs are signed integers to make it natural
+ /// to add, subtract, and test with zero (a common boundary condition). It is
+ /// not expected that 2^32 is a realistic cost to be modeling at any point.
///
/// Note that these costs should usually reflect the intersection of code-size
/// cost and execution cost. A free instruction is typically one that folds
///
/// The returned cost is defined in terms of \c TargetCostConstants, see its
/// comments for a detailed explanation of the cost values.
- unsigned getOperationCost(unsigned Opcode, Type *Ty,
- Type *OpTy = nullptr) const;
+ int getOperationCost(unsigned Opcode, Type *Ty, Type *OpTy = nullptr) const;
/// \brief Estimate the cost of a GEP operation when lowered.
///
/// The contract for this function is the same as \c getOperationCost except
/// that it supports an interface that provides extra information specific to
/// the GEP operation.
- unsigned getGEPCost(Type *PointeeType, const Value *Ptr,
- ArrayRef<const Value *> Operands) const;
+ int getGEPCost(Type *PointeeType, const Value *Ptr,
+ ArrayRef<const Value *> Operands) const;
/// \brief Estimate the cost of a function call when lowered.
///
/// This is the most basic query for estimating call cost: it only knows the
/// function type and (potentially) the number of arguments at the call site.
/// The latter is only interesting for varargs function types.
- unsigned getCallCost(FunctionType *FTy, int NumArgs = -1) const;
+ int getCallCost(FunctionType *FTy, int NumArgs = -1) const;
/// \brief Estimate the cost of calling a specific function when lowered.
///
/// This overload adds the ability to reason about the particular function
/// being called in the event it is a library call with special lowering.
- unsigned getCallCost(const Function *F, int NumArgs = -1) const;
+ int getCallCost(const Function *F, int NumArgs = -1) const;
/// \brief Estimate the cost of calling a specific function when lowered.
///
/// This overload allows specifying a set of candidate argument values.
- unsigned getCallCost(const Function *F,
- ArrayRef<const Value *> Arguments) const;
+ int getCallCost(const Function *F, ArrayRef<const Value *> Arguments) const;
/// \brief Estimate the cost of an intrinsic when lowered.
///
/// Mirrors the \c getCallCost method but uses an intrinsic identifier.
- unsigned getIntrinsicCost(Intrinsic::ID IID, Type *RetTy,
- ArrayRef<Type *> ParamTys) const;
+ int getIntrinsicCost(Intrinsic::ID IID, Type *RetTy,
+ ArrayRef<Type *> ParamTys) const;
/// \brief Estimate the cost of an intrinsic when lowered.
///
/// Mirrors the \c getCallCost method but uses an intrinsic identifier.
- unsigned getIntrinsicCost(Intrinsic::ID IID, Type *RetTy,
- ArrayRef<const Value *> Arguments) const;
+ int getIntrinsicCost(Intrinsic::ID IID, Type *RetTy,
+ ArrayRef<const Value *> Arguments) const;
/// \brief Estimate the cost of a given IR user when lowered.
///
///
/// The returned cost is defined in terms of \c TargetCostConstants, see its
/// comments for a detailed explanation of the cost values.
- unsigned getUserCost(const User *U) const;
+ int getUserCost(const User *U) const;
/// \brief Return true if branch divergence exists.
///
/// \brief Return the expected cost of supporting the floating point operation
/// of the specified type.
- unsigned getFPOpCost(Type *Ty) const;
+ int getFPOpCost(Type *Ty) const;
/// \brief Return the expected cost of materializing for the given integer
/// immediate of the specified type.
- unsigned getIntImmCost(const APInt &Imm, Type *Ty) const;
+ int getIntImmCost(const APInt &Imm, Type *Ty) const;
/// \brief Return the expected cost of materialization for the given integer
/// immediate of the specified type for a given instruction. The cost can be
/// zero if the immediate can be folded into the specified instruction.
- unsigned getIntImmCost(unsigned Opc, unsigned Idx, const APInt &Imm,
- Type *Ty) const;
- unsigned getIntImmCost(Intrinsic::ID IID, unsigned Idx, const APInt &Imm,
- Type *Ty) const;
+ int getIntImmCost(unsigned Opc, unsigned Idx, const APInt &Imm,
+ Type *Ty) const;
+ int getIntImmCost(Intrinsic::ID IID, unsigned Idx, const APInt &Imm,
+ Type *Ty) const;
/// @}
/// \name Vector Target Information
unsigned getMaxInterleaveFactor(unsigned VF) const;
/// \return The expected cost of arithmetic ops, such as mul, xor, fsub, etc.
- unsigned
- getArithmeticInstrCost(unsigned Opcode, Type *Ty,
- OperandValueKind Opd1Info = OK_AnyValue,
- OperandValueKind Opd2Info = OK_AnyValue,
- OperandValueProperties Opd1PropInfo = OP_None,
- OperandValueProperties Opd2PropInfo = OP_None) const;
+ int getArithmeticInstrCost(
+ unsigned Opcode, Type *Ty, OperandValueKind Opd1Info = OK_AnyValue,
+ OperandValueKind Opd2Info = OK_AnyValue,
+ OperandValueProperties Opd1PropInfo = OP_None,
+ OperandValueProperties Opd2PropInfo = OP_None) const;
/// \return The cost of a shuffle instruction of kind Kind and of type Tp.
/// The index and subtype parameters are used by the subvector insertion and
/// extraction shuffle kinds.
- unsigned getShuffleCost(ShuffleKind Kind, Type *Tp, int Index = 0,
- Type *SubTp = nullptr) const;
+ int getShuffleCost(ShuffleKind Kind, Type *Tp, int Index = 0,
+ Type *SubTp = nullptr) const;
/// \return The expected cost of cast instructions, such as bitcast, trunc,
/// zext, etc.
- unsigned getCastInstrCost(unsigned Opcode, Type *Dst, Type *Src) const;
+ int getCastInstrCost(unsigned Opcode, Type *Dst, Type *Src) const;
/// \return The expected cost of control-flow related instructions such as
/// Phi, Ret, Br.
- unsigned getCFInstrCost(unsigned Opcode) const;
+ int getCFInstrCost(unsigned Opcode) const;
/// \returns The expected cost of compare and select instructions.
- unsigned getCmpSelInstrCost(unsigned Opcode, Type *ValTy,
- Type *CondTy = nullptr) const;
+ int getCmpSelInstrCost(unsigned Opcode, Type *ValTy,
+ Type *CondTy = nullptr) const;
/// \return The expected cost of vector Insert and Extract.
/// Use -1 to indicate that there is no information on the index value.
- unsigned getVectorInstrCost(unsigned Opcode, Type *Val,
- unsigned Index = -1) const;
+ int getVectorInstrCost(unsigned Opcode, Type *Val, unsigned Index = -1) const;
/// \return The cost of Load and Store instructions.
- unsigned getMemoryOpCost(unsigned Opcode, Type *Src, unsigned Alignment,
- unsigned AddressSpace) const;
+ int getMemoryOpCost(unsigned Opcode, Type *Src, unsigned Alignment,
+ unsigned AddressSpace) const;
/// \return The cost of masked Load and Store instructions.
- unsigned getMaskedMemoryOpCost(unsigned Opcode, Type *Src, unsigned Alignment,
- unsigned AddressSpace) const;
+ int getMaskedMemoryOpCost(unsigned Opcode, Type *Src, unsigned Alignment,
+ unsigned AddressSpace) const;
/// \return The cost of the interleaved memory operation.
/// \p Opcode is the memory operation code
/// load allows gaps)
/// \p Alignment is the alignment of the memory operation
/// \p AddressSpace is address space of the pointer.
- unsigned getInterleavedMemoryOpCost(unsigned Opcode, Type *VecTy,
- unsigned Factor,
- ArrayRef<unsigned> Indices,
- unsigned Alignment,
- unsigned AddressSpace) const;
+ int getInterleavedMemoryOpCost(unsigned Opcode, Type *VecTy, unsigned Factor,
+ ArrayRef<unsigned> Indices, unsigned Alignment,
+ unsigned AddressSpace) const;
/// \brief Calculate the cost of performing a vector reduction.
///
/// Split:
/// (v0, v1, v2, v3)
/// ((v0+v2), (v1+v3), undef, undef)
- unsigned getReductionCost(unsigned Opcode, Type *Ty,
- bool IsPairwiseForm) const;
+ int getReductionCost(unsigned Opcode, Type *Ty, bool IsPairwiseForm) const;
/// \returns The cost of Intrinsic instructions.
- unsigned getIntrinsicInstrCost(Intrinsic::ID ID, Type *RetTy,
- ArrayRef<Type *> Tys) const;
+ int getIntrinsicInstrCost(Intrinsic::ID ID, Type *RetTy,
+ ArrayRef<Type *> Tys) const;
/// \returns The cost of Call instructions.
- unsigned getCallInstrCost(Function *F, Type *RetTy,
- ArrayRef<Type *> Tys) const;
+ int getCallInstrCost(Function *F, Type *RetTy, ArrayRef<Type *> Tys) const;
/// \returns The number of pieces into which the provided type must be
/// split during legalization. Zero is returned when the answer is unknown.
/// The 'IsComplex' parameter is a hint that the address computation is likely
/// to involve multiple instructions and as such unlikely to be merged into
/// the address indexing mode.
- unsigned getAddressComputationCost(Type *Ty, bool IsComplex = false) const;
+ int getAddressComputationCost(Type *Ty, bool IsComplex = false) const;
/// \returns The cost, if any, of keeping values of the given types alive
/// over a callsite.
public:
virtual ~Concept() = 0;
virtual const DataLayout &getDataLayout() const = 0;
- virtual unsigned getOperationCost(unsigned Opcode, Type *Ty, Type *OpTy) = 0;
- virtual unsigned getGEPCost(Type *PointeeType, const Value *Ptr,
- ArrayRef<const Value *> Operands) = 0;
- virtual unsigned getCallCost(FunctionType *FTy, int NumArgs) = 0;
- virtual unsigned getCallCost(const Function *F, int NumArgs) = 0;
- virtual unsigned getCallCost(const Function *F,
+ virtual int getOperationCost(unsigned Opcode, Type *Ty, Type *OpTy) = 0;
+ virtual int getGEPCost(Type *PointeeType, const Value *Ptr,
+ ArrayRef<const Value *> Operands) = 0;
+ virtual int getCallCost(FunctionType *FTy, int NumArgs) = 0;
+ virtual int getCallCost(const Function *F, int NumArgs) = 0;
+ virtual int getCallCost(const Function *F,
+ ArrayRef<const Value *> Arguments) = 0;
+ virtual int getIntrinsicCost(Intrinsic::ID IID, Type *RetTy,
+ ArrayRef<Type *> ParamTys) = 0;
+ virtual int getIntrinsicCost(Intrinsic::ID IID, Type *RetTy,
ArrayRef<const Value *> Arguments) = 0;
- virtual unsigned getIntrinsicCost(Intrinsic::ID IID, Type *RetTy,
- ArrayRef<Type *> ParamTys) = 0;
- virtual unsigned getIntrinsicCost(Intrinsic::ID IID, Type *RetTy,
- ArrayRef<const Value *> Arguments) = 0;
- virtual unsigned getUserCost(const User *U) = 0;
+ virtual int getUserCost(const User *U) = 0;
virtual bool hasBranchDivergence() = 0;
virtual bool isSourceOfDivergence(const Value *V) = 0;
virtual bool isLoweredToCall(const Function *F) = 0;
virtual bool enableAggressiveInterleaving(bool LoopHasReductions) = 0;
virtual PopcntSupportKind getPopcntSupport(unsigned IntTyWidthInBit) = 0;
virtual bool haveFastSqrt(Type *Ty) = 0;
- virtual unsigned getFPOpCost(Type *Ty) = 0;
- virtual unsigned getIntImmCost(const APInt &Imm, Type *Ty) = 0;
- virtual unsigned getIntImmCost(unsigned Opc, unsigned Idx, const APInt &Imm,
- Type *Ty) = 0;
- virtual unsigned getIntImmCost(Intrinsic::ID IID, unsigned Idx,
- const APInt &Imm, Type *Ty) = 0;
+ virtual int getFPOpCost(Type *Ty) = 0;
+ virtual int getIntImmCost(const APInt &Imm, Type *Ty) = 0;
+ virtual int getIntImmCost(unsigned Opc, unsigned Idx, const APInt &Imm,
+ Type *Ty) = 0;
+ virtual int getIntImmCost(Intrinsic::ID IID, unsigned Idx, const APInt &Imm,
+ Type *Ty) = 0;
virtual unsigned getNumberOfRegisters(bool Vector) = 0;
virtual unsigned getRegisterBitWidth(bool Vector) = 0;
virtual unsigned getMaxInterleaveFactor(unsigned VF) = 0;
OperandValueKind Opd2Info,
OperandValueProperties Opd1PropInfo,
OperandValueProperties Opd2PropInfo) = 0;
- virtual unsigned getShuffleCost(ShuffleKind Kind, Type *Tp, int Index,
- Type *SubTp) = 0;
- virtual unsigned getCastInstrCost(unsigned Opcode, Type *Dst, Type *Src) = 0;
- virtual unsigned getCFInstrCost(unsigned Opcode) = 0;
- virtual unsigned getCmpSelInstrCost(unsigned Opcode, Type *ValTy,
- Type *CondTy) = 0;
- virtual unsigned getVectorInstrCost(unsigned Opcode, Type *Val,
- unsigned Index) = 0;
- virtual unsigned getMemoryOpCost(unsigned Opcode, Type *Src,
- unsigned Alignment,
- unsigned AddressSpace) = 0;
- virtual unsigned getMaskedMemoryOpCost(unsigned Opcode, Type *Src,
+ virtual int getShuffleCost(ShuffleKind Kind, Type *Tp, int Index,
+ Type *SubTp) = 0;
+ virtual int getCastInstrCost(unsigned Opcode, Type *Dst, Type *Src) = 0;
+ virtual int getCFInstrCost(unsigned Opcode) = 0;
+ virtual int getCmpSelInstrCost(unsigned Opcode, Type *ValTy,
+ Type *CondTy) = 0;
+ virtual int getVectorInstrCost(unsigned Opcode, Type *Val,
+ unsigned Index) = 0;
+ virtual int getMemoryOpCost(unsigned Opcode, Type *Src, unsigned Alignment,
+ unsigned AddressSpace) = 0;
+ virtual int getMaskedMemoryOpCost(unsigned Opcode, Type *Src,
+ unsigned Alignment,
+ unsigned AddressSpace) = 0;
+ virtual int getInterleavedMemoryOpCost(unsigned Opcode, Type *VecTy,
+ unsigned Factor,
+ ArrayRef<unsigned> Indices,
unsigned Alignment,
unsigned AddressSpace) = 0;
- virtual unsigned getInterleavedMemoryOpCost(unsigned Opcode, Type *VecTy,
- unsigned Factor,
- ArrayRef<unsigned> Indices,
- unsigned Alignment,
- unsigned AddressSpace) = 0;
- virtual unsigned getReductionCost(unsigned Opcode, Type *Ty,
- bool IsPairwiseForm) = 0;
- virtual unsigned getIntrinsicInstrCost(Intrinsic::ID ID, Type *RetTy,
- ArrayRef<Type *> Tys) = 0;
- virtual unsigned getCallInstrCost(Function *F, Type *RetTy,
+ virtual int getReductionCost(unsigned Opcode, Type *Ty,
+ bool IsPairwiseForm) = 0;
+ virtual int getIntrinsicInstrCost(Intrinsic::ID ID, Type *RetTy,
ArrayRef<Type *> Tys) = 0;
+ virtual int getCallInstrCost(Function *F, Type *RetTy,
+ ArrayRef<Type *> Tys) = 0;
virtual unsigned getNumberOfParts(Type *Tp) = 0;
- virtual unsigned getAddressComputationCost(Type *Ty, bool IsComplex) = 0;
+ virtual int getAddressComputationCost(Type *Ty, bool IsComplex) = 0;
virtual unsigned getCostOfKeepingLiveOverCall(ArrayRef<Type *> Tys) = 0;
virtual bool getTgtMemIntrinsic(IntrinsicInst *Inst,
MemIntrinsicInfo &Info) = 0;
return Impl.getDataLayout();
}
- unsigned getOperationCost(unsigned Opcode, Type *Ty, Type *OpTy) override {
+ int getOperationCost(unsigned Opcode, Type *Ty, Type *OpTy) override {
return Impl.getOperationCost(Opcode, Ty, OpTy);
}
- unsigned getGEPCost(Type *PointeeType, const Value *Ptr,
- ArrayRef<const Value *> Operands) override {
+ int getGEPCost(Type *PointeeType, const Value *Ptr,
+ ArrayRef<const Value *> Operands) override {
return Impl.getGEPCost(PointeeType, Ptr, Operands);
}
- unsigned getCallCost(FunctionType *FTy, int NumArgs) override {
+ int getCallCost(FunctionType *FTy, int NumArgs) override {
return Impl.getCallCost(FTy, NumArgs);
}
- unsigned getCallCost(const Function *F, int NumArgs) override {
+ int getCallCost(const Function *F, int NumArgs) override {
return Impl.getCallCost(F, NumArgs);
}
- unsigned getCallCost(const Function *F,
- ArrayRef<const Value *> Arguments) override {
+ int getCallCost(const Function *F,
+ ArrayRef<const Value *> Arguments) override {
return Impl.getCallCost(F, Arguments);
}
- unsigned getIntrinsicCost(Intrinsic::ID IID, Type *RetTy,
- ArrayRef<Type *> ParamTys) override {
+ int getIntrinsicCost(Intrinsic::ID IID, Type *RetTy,
+ ArrayRef<Type *> ParamTys) override {
return Impl.getIntrinsicCost(IID, RetTy, ParamTys);
}
- unsigned getIntrinsicCost(Intrinsic::ID IID, Type *RetTy,
- ArrayRef<const Value *> Arguments) override {
+ int getIntrinsicCost(Intrinsic::ID IID, Type *RetTy,
+ ArrayRef<const Value *> Arguments) override {
return Impl.getIntrinsicCost(IID, RetTy, Arguments);
}
- unsigned getUserCost(const User *U) override { return Impl.getUserCost(U); }
+ int getUserCost(const User *U) override { return Impl.getUserCost(U); }
bool hasBranchDivergence() override { return Impl.hasBranchDivergence(); }
bool isSourceOfDivergence(const Value *V) override {
return Impl.isSourceOfDivergence(V);
}
bool haveFastSqrt(Type *Ty) override { return Impl.haveFastSqrt(Ty); }
- unsigned getFPOpCost(Type *Ty) override {
- return Impl.getFPOpCost(Ty);
- }
+ int getFPOpCost(Type *Ty) override { return Impl.getFPOpCost(Ty); }
- unsigned getIntImmCost(const APInt &Imm, Type *Ty) override {
+ int getIntImmCost(const APInt &Imm, Type *Ty) override {
return Impl.getIntImmCost(Imm, Ty);
}
- unsigned getIntImmCost(unsigned Opc, unsigned Idx, const APInt &Imm,
- Type *Ty) override {
+ int getIntImmCost(unsigned Opc, unsigned Idx, const APInt &Imm,
+ Type *Ty) override {
return Impl.getIntImmCost(Opc, Idx, Imm, Ty);
}
- unsigned getIntImmCost(Intrinsic::ID IID, unsigned Idx, const APInt &Imm,
- Type *Ty) override {
+ int getIntImmCost(Intrinsic::ID IID, unsigned Idx, const APInt &Imm,
+ Type *Ty) override {
return Impl.getIntImmCost(IID, Idx, Imm, Ty);
}
unsigned getNumberOfRegisters(bool Vector) override {
return Impl.getArithmeticInstrCost(Opcode, Ty, Opd1Info, Opd2Info,
Opd1PropInfo, Opd2PropInfo);
}
- unsigned getShuffleCost(ShuffleKind Kind, Type *Tp, int Index,
- Type *SubTp) override {
+ int getShuffleCost(ShuffleKind Kind, Type *Tp, int Index,
+ Type *SubTp) override {
return Impl.getShuffleCost(Kind, Tp, Index, SubTp);
}
- unsigned getCastInstrCost(unsigned Opcode, Type *Dst, Type *Src) override {
+ int getCastInstrCost(unsigned Opcode, Type *Dst, Type *Src) override {
return Impl.getCastInstrCost(Opcode, Dst, Src);
}
- unsigned getCFInstrCost(unsigned Opcode) override {
+ int getCFInstrCost(unsigned Opcode) override {
return Impl.getCFInstrCost(Opcode);
}
- unsigned getCmpSelInstrCost(unsigned Opcode, Type *ValTy,
- Type *CondTy) override {
+ int getCmpSelInstrCost(unsigned Opcode, Type *ValTy, Type *CondTy) override {
return Impl.getCmpSelInstrCost(Opcode, ValTy, CondTy);
}
- unsigned getVectorInstrCost(unsigned Opcode, Type *Val,
- unsigned Index) override {
+ int getVectorInstrCost(unsigned Opcode, Type *Val, unsigned Index) override {
return Impl.getVectorInstrCost(Opcode, Val, Index);
}
- unsigned getMemoryOpCost(unsigned Opcode, Type *Src, unsigned Alignment,
- unsigned AddressSpace) override {
+ int getMemoryOpCost(unsigned Opcode, Type *Src, unsigned Alignment,
+ unsigned AddressSpace) override {
return Impl.getMemoryOpCost(Opcode, Src, Alignment, AddressSpace);
}
- unsigned getMaskedMemoryOpCost(unsigned Opcode, Type *Src, unsigned Alignment,
- unsigned AddressSpace) override {
+ int getMaskedMemoryOpCost(unsigned Opcode, Type *Src, unsigned Alignment,
+ unsigned AddressSpace) override {
return Impl.getMaskedMemoryOpCost(Opcode, Src, Alignment, AddressSpace);
}
- unsigned getInterleavedMemoryOpCost(unsigned Opcode, Type *VecTy,
- unsigned Factor,
- ArrayRef<unsigned> Indices,
- unsigned Alignment,
- unsigned AddressSpace) override {
+ int getInterleavedMemoryOpCost(unsigned Opcode, Type *VecTy, unsigned Factor,
+ ArrayRef<unsigned> Indices, unsigned Alignment,
+ unsigned AddressSpace) override {
return Impl.getInterleavedMemoryOpCost(Opcode, VecTy, Factor, Indices,
Alignment, AddressSpace);
}
- unsigned getReductionCost(unsigned Opcode, Type *Ty,
- bool IsPairwiseForm) override {
+ int getReductionCost(unsigned Opcode, Type *Ty,
+ bool IsPairwiseForm) override {
return Impl.getReductionCost(Opcode, Ty, IsPairwiseForm);
}
- unsigned getIntrinsicInstrCost(Intrinsic::ID ID, Type *RetTy,
- ArrayRef<Type *> Tys) override {
+ int getIntrinsicInstrCost(Intrinsic::ID ID, Type *RetTy,
+ ArrayRef<Type *> Tys) override {
return Impl.getIntrinsicInstrCost(ID, RetTy, Tys);
}
- unsigned getCallInstrCost(Function *F, Type *RetTy,
- ArrayRef<Type *> Tys) override {
+ int getCallInstrCost(Function *F, Type *RetTy,
+ ArrayRef<Type *> Tys) override {
return Impl.getCallInstrCost(F, RetTy, Tys);
}
unsigned getNumberOfParts(Type *Tp) override {
return Impl.getNumberOfParts(Tp);
}
- unsigned getAddressComputationCost(Type *Ty, bool IsComplex) override {
+ int getAddressComputationCost(Type *Ty, bool IsComplex) override {
return Impl.getAddressComputationCost(Ty, IsComplex);
}
unsigned getCostOfKeepingLiveOverCall(ArrayRef<Type *> Tys) override {
projects / oota-llvm.git / blobdiff