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1 //===-- PPCTargetTransformInfo.h - PPC specific TTI -------------*- C++ -*-===//
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2 //
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3 // The LLVM Compiler Infrastructure
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4 //
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5 // This file is distributed under the University of Illinois Open Source
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6 // License. See LICENSE.TXT for details.
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7 //
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8 //===----------------------------------------------------------------------===//
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9 /// \file
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10 /// This file a TargetTransformInfo::Concept conforming object specific to the
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11 /// PPC target machine. It uses the target's detailed information to
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12 /// provide more precise answers to certain TTI queries, while letting the
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13 /// target independent and default TTI implementations handle the rest.
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14 ///
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15 //===----------------------------------------------------------------------===//
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16
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17 #ifndef LLVM_LIB_TARGET_POWERPC_PPCTARGETTRANSFORMINFO_H
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18 #define LLVM_LIB_TARGET_POWERPC_PPCTARGETTRANSFORMINFO_H
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19
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20 #include "PPC.h"
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21 #include "PPCTargetMachine.h"
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22 #include "llvm/Analysis/TargetTransformInfo.h"
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23 #include "llvm/CodeGen/BasicTTIImpl.h"
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24 #include "llvm/Target/TargetLowering.h"
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25
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26 namespace llvm {
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27
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28 class PPCTTIImpl : public BasicTTIImplBase<PPCTTIImpl> {
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29 typedef BasicTTIImplBase<PPCTTIImpl> BaseT;
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30 typedef TargetTransformInfo TTI;
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31 friend BaseT;
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32
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33 const PPCSubtarget *ST;
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34 const PPCTargetLowering *TLI;
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35
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36 const PPCSubtarget *getST() const { return ST; }
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37 const PPCTargetLowering *getTLI() const { return TLI; }
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38
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39 public:
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40 explicit PPCTTIImpl(const PPCTargetMachine *TM, const Function &F)
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41 : BaseT(TM, F.getParent()->getDataLayout()), ST(TM->getSubtargetImpl(F)),
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42 TLI(ST->getTargetLowering()) {}
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43
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44 /// \name Scalar TTI Implementations
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45 /// @{
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46
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47 using BaseT::getIntImmCost;
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95
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48 int getIntImmCost(const APInt &Imm, Type *Ty);
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49
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95
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50 int getIntImmCost(unsigned Opcode, unsigned Idx, const APInt &Imm, Type *Ty);
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51 int getIntImmCost(Intrinsic::ID IID, unsigned Idx, const APInt &Imm,
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52 Type *Ty);
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53
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121
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54 unsigned getUserCost(const User *U, ArrayRef<const Value *> Operands);
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55
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56 TTI::PopcntSupportKind getPopcntSupport(unsigned TyWidth);
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121
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57 void getUnrollingPreferences(Loop *L, ScalarEvolution &SE,
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58 TTI::UnrollingPreferences &UP);
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59
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60 /// @}
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61
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62 /// \name Vector TTI Implementations
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63 /// @{
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64
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65 bool enableAggressiveInterleaving(bool LoopHasReductions);
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66 bool enableMemCmpExpansion(unsigned &MaxLoadSize);
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67 bool enableInterleavedAccessVectorization();
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83
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68 unsigned getNumberOfRegisters(bool Vector);
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121
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69 unsigned getRegisterBitWidth(bool Vector) const;
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100
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70 unsigned getCacheLineSize();
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120
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71 unsigned getPrefetchDistance();
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72 unsigned getMaxInterleaveFactor(unsigned VF);
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73 int getArithmeticInstrCost(
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74 unsigned Opcode, Type *Ty,
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75 TTI::OperandValueKind Opd1Info = TTI::OK_AnyValue,
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76 TTI::OperandValueKind Opd2Info = TTI::OK_AnyValue,
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77 TTI::OperandValueProperties Opd1PropInfo = TTI::OP_None,
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121
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78 TTI::OperandValueProperties Opd2PropInfo = TTI::OP_None,
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79 ArrayRef<const Value *> Args = ArrayRef<const Value *>());
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80 int getShuffleCost(TTI::ShuffleKind Kind, Type *Tp, int Index, Type *SubTp);
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121
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81 int getCastInstrCost(unsigned Opcode, Type *Dst, Type *Src,
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82 const Instruction *I = nullptr);
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83 int getCmpSelInstrCost(unsigned Opcode, Type *ValTy, Type *CondTy,
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84 const Instruction *I = nullptr);
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95
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85 int getVectorInstrCost(unsigned Opcode, Type *Val, unsigned Index);
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86 int getMemoryOpCost(unsigned Opcode, Type *Src, unsigned Alignment,
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121
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87 unsigned AddressSpace, const Instruction *I = nullptr);
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88 int getInterleavedMemoryOpCost(unsigned Opcode, Type *VecTy,
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89 unsigned Factor,
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90 ArrayRef<unsigned> Indices,
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91 unsigned Alignment,
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92 unsigned AddressSpace);
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83
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93
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94 /// @}
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95 };
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96
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97 } // end namespace llvm
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98
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99 #endif
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