1 //===-- PPCTargetTransformInfo.h - PPC specific TTI -------------*- C++ -*-===// 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 /// \file 10 /// This file a TargetTransformInfo::Concept conforming object specific to the 11 /// PPC target machine. It uses the target's detailed information to 12 /// provide more precise answers to certain TTI queries, while letting the 13 /// target independent and default TTI implementations handle the rest. 14 /// 15 //===----------------------------------------------------------------------===// 16 17 #ifndef LLVM_LIB_TARGET_POWERPC_PPCTARGETTRANSFORMINFO_H 18 #define LLVM_LIB_TARGET_POWERPC_PPCTARGETTRANSFORMINFO_H 19 20 #include "PPC.h" 21 #include "PPCTargetMachine.h" 22 #include "llvm/Analysis/TargetTransformInfo.h" 23 #include "llvm/CodeGen/BasicTTIImpl.h" 24 #include "llvm/CodeGen/TargetLowering.h" 25 26 namespace llvm { 27 28 class PPCTTIImpl : public BasicTTIImplBase<PPCTTIImpl> { 29 typedef BasicTTIImplBase<PPCTTIImpl> BaseT; 30 typedef TargetTransformInfo TTI; 31 friend BaseT; 32 33 const PPCSubtarget *ST; 34 const PPCTargetLowering *TLI; 35 36 const PPCSubtarget *getST() const { return ST; } 37 const PPCTargetLowering *getTLI() const { return TLI; } 38 39 public: 40 explicit PPCTTIImpl(const PPCTargetMachine *TM, const Function &F) 41 : BaseT(TM, F.getParent()->getDataLayout()), ST(TM->getSubtargetImpl(F)), 42 TLI(ST->getTargetLowering()) {} 43 44 /// \name Scalar TTI Implementations 45 /// @{ 46 47 using BaseT::getIntImmCost; 48 int getIntImmCost(const APInt &Imm, Type *Ty); 49 50 int getIntImmCost(unsigned Opcode, unsigned Idx, const APInt &Imm, Type *Ty); 51 int getIntImmCost(Intrinsic::ID IID, unsigned Idx, const APInt &Imm, 52 Type *Ty); 53 54 unsigned getUserCost(const User *U, ArrayRef<const Value *> Operands); 55 56 TTI::PopcntSupportKind getPopcntSupport(unsigned TyWidth); 57 void getUnrollingPreferences(Loop *L, ScalarEvolution &SE, 58 TTI::UnrollingPreferences &UP); 59 60 /// @} 61 62 /// \name Vector TTI Implementations 63 /// @{ 64 bool useColdCCForColdCall(Function &F); 65 bool enableAggressiveInterleaving(bool LoopHasReductions); 66 const TTI::MemCmpExpansionOptions *enableMemCmpExpansion( 67 bool IsZeroCmp) const; 68 bool enableInterleavedAccessVectorization(); 69 unsigned getNumberOfRegisters(bool Vector); 70 unsigned getRegisterBitWidth(bool Vector) const; 71 unsigned getCacheLineSize(); 72 unsigned getPrefetchDistance(); 73 unsigned getMaxInterleaveFactor(unsigned VF); 74 int getArithmeticInstrCost( 75 unsigned Opcode, Type *Ty, 76 TTI::OperandValueKind Opd1Info = TTI::OK_AnyValue, 77 TTI::OperandValueKind Opd2Info = TTI::OK_AnyValue, 78 TTI::OperandValueProperties Opd1PropInfo = TTI::OP_None, 79 TTI::OperandValueProperties Opd2PropInfo = TTI::OP_None, 80 ArrayRef<const Value *> Args = ArrayRef<const Value *>()); 81 int getShuffleCost(TTI::ShuffleKind Kind, Type *Tp, int Index, Type *SubTp); 82 int getCastInstrCost(unsigned Opcode, Type *Dst, Type *Src, 83 const Instruction *I = nullptr); 84 int getCmpSelInstrCost(unsigned Opcode, Type *ValTy, Type *CondTy, 85 const Instruction *I = nullptr); 86 int getVectorInstrCost(unsigned Opcode, Type *Val, unsigned Index); 87 int getMemoryOpCost(unsigned Opcode, Type *Src, unsigned Alignment, 88 unsigned AddressSpace, const Instruction *I = nullptr); 89 int getInterleavedMemoryOpCost(unsigned Opcode, Type *VecTy, 90 unsigned Factor, 91 ArrayRef<unsigned> Indices, 92 unsigned Alignment, 93 unsigned AddressSpace, 94 bool IsMasked = false); 95 96 /// @} 97 }; 98 99 } // end namespace llvm 100 101 #endif 102