1 //===-- SystemZTargetTransformInfo.h - SystemZ-specific TTI ---------------===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is distributed under the University of Illinois Open Source 6 // License. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 10 #ifndef LLVM_LIB_TARGET_SYSTEMZ_SYSTEMZTARGETTRANSFORMINFO_H 11 #define LLVM_LIB_TARGET_SYSTEMZ_SYSTEMZTARGETTRANSFORMINFO_H 12 13 #include "SystemZTargetMachine.h" 14 #include "llvm/Analysis/TargetTransformInfo.h" 15 #include "llvm/CodeGen/BasicTTIImpl.h" 16 17 namespace llvm { 18 19 class SystemZTTIImpl : public BasicTTIImplBase<SystemZTTIImpl> { 20 typedef BasicTTIImplBase<SystemZTTIImpl> BaseT; 21 typedef TargetTransformInfo TTI; 22 friend BaseT; 23 24 const SystemZSubtarget *ST; 25 const SystemZTargetLowering *TLI; 26 getST()27 const SystemZSubtarget *getST() const { return ST; } getTLI()28 const SystemZTargetLowering *getTLI() const { return TLI; } 29 30 unsigned const LIBCALL_COST = 30; 31 32 public: SystemZTTIImpl(const SystemZTargetMachine * TM,const Function & F)33 explicit SystemZTTIImpl(const SystemZTargetMachine *TM, const Function &F) 34 : BaseT(TM, F.getParent()->getDataLayout()), ST(TM->getSubtargetImpl(F)), 35 TLI(ST->getTargetLowering()) {} 36 37 /// \name Scalar TTI Implementations 38 /// @{ 39 40 int getIntImmCost(const APInt &Imm, Type *Ty); 41 42 int getIntImmCost(unsigned Opcode, unsigned Idx, const APInt &Imm, Type *Ty); 43 int getIntImmCost(Intrinsic::ID IID, unsigned Idx, const APInt &Imm, 44 Type *Ty); 45 46 TTI::PopcntSupportKind getPopcntSupport(unsigned TyWidth); 47 48 void getUnrollingPreferences(Loop *L, ScalarEvolution &SE, 49 TTI::UnrollingPreferences &UP); 50 51 bool isLSRCostLess(TargetTransformInfo::LSRCost &C1, 52 TargetTransformInfo::LSRCost &C2); 53 /// @} 54 55 /// \name Vector TTI Implementations 56 /// @{ 57 58 unsigned getNumberOfRegisters(bool Vector); 59 unsigned getRegisterBitWidth(bool Vector) const; 60 getCacheLineSize()61 unsigned getCacheLineSize() { return 256; } getPrefetchDistance()62 unsigned getPrefetchDistance() { return 2000; } getMinPrefetchStride()63 unsigned getMinPrefetchStride() { return 2048; } 64 65 bool hasDivRemOp(Type *DataType, bool IsSigned); prefersVectorizedAddressing()66 bool prefersVectorizedAddressing() { return false; } LSRWithInstrQueries()67 bool LSRWithInstrQueries() { return true; } supportsEfficientVectorElementLoadStore()68 bool supportsEfficientVectorElementLoadStore() { return true; } enableInterleavedAccessVectorization()69 bool enableInterleavedAccessVectorization() { return true; } 70 71 int getArithmeticInstrCost( 72 unsigned Opcode, Type *Ty, 73 TTI::OperandValueKind Opd1Info = TTI::OK_AnyValue, 74 TTI::OperandValueKind Opd2Info = TTI::OK_AnyValue, 75 TTI::OperandValueProperties Opd1PropInfo = TTI::OP_None, 76 TTI::OperandValueProperties Opd2PropInfo = TTI::OP_None, 77 ArrayRef<const Value *> Args = ArrayRef<const Value *>()); 78 int getShuffleCost(TTI::ShuffleKind Kind, Type *Tp, int Index, Type *SubTp); 79 unsigned getVectorTruncCost(Type *SrcTy, Type *DstTy); 80 unsigned getVectorBitmaskConversionCost(Type *SrcTy, Type *DstTy); 81 int getCastInstrCost(unsigned Opcode, Type *Dst, Type *Src, 82 const Instruction *I = nullptr); 83 int getCmpSelInstrCost(unsigned Opcode, Type *ValTy, Type *CondTy, 84 const Instruction *I = nullptr); 85 int getVectorInstrCost(unsigned Opcode, Type *Val, unsigned Index); 86 int getMemoryOpCost(unsigned Opcode, Type *Src, unsigned Alignment, 87 unsigned AddressSpace, const Instruction *I = nullptr); 88 89 int getInterleavedMemoryOpCost(unsigned Opcode, Type *VecTy, 90 unsigned Factor, 91 ArrayRef<unsigned> Indices, 92 unsigned Alignment, 93 unsigned AddressSpace); 94 /// @} 95 }; 96 97 } // end namespace llvm 98 99 #endif 100