1 //===-- PPCTargetTransformInfo.h - PPC specific TTI -------------*- C++ -*-===// 2 // 3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 // See https://llvm.org/LICENSE.txt for license information. 5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 // 7 //===----------------------------------------------------------------------===// 8 /// \file 9 /// This file a TargetTransformInfo::Concept conforming object specific to the 10 /// PPC target machine. It uses the target's detailed information to 11 /// provide more precise answers to certain TTI queries, while letting the 12 /// target independent and default TTI implementations handle the rest. 13 /// 14 //===----------------------------------------------------------------------===// 15 16 #ifndef LLVM_LIB_TARGET_POWERPC_PPCTARGETTRANSFORMINFO_H 17 #define LLVM_LIB_TARGET_POWERPC_PPCTARGETTRANSFORMINFO_H 18 19 #include "PPCTargetMachine.h" 20 #include "llvm/Analysis/TargetTransformInfo.h" 21 #include "llvm/CodeGen/BasicTTIImpl.h" 22 #include "llvm/CodeGen/TargetLowering.h" 23 24 namespace llvm { 25 26 class PPCTTIImpl : public BasicTTIImplBase<PPCTTIImpl> { 27 typedef BasicTTIImplBase<PPCTTIImpl> BaseT; 28 typedef TargetTransformInfo TTI; 29 friend BaseT; 30 31 const PPCSubtarget *ST; 32 const PPCTargetLowering *TLI; 33 34 const PPCSubtarget *getST() const { return ST; } 35 const PPCTargetLowering *getTLI() const { return TLI; } 36 bool mightUseCTR(BasicBlock *BB, TargetLibraryInfo *LibInfo); 37 38 public: 39 explicit PPCTTIImpl(const PPCTargetMachine *TM, const Function &F) 40 : BaseT(TM, F.getParent()->getDataLayout()), ST(TM->getSubtargetImpl(F)), 41 TLI(ST->getTargetLowering()) {} 42 43 /// \name Scalar TTI Implementations 44 /// @{ 45 46 using BaseT::getIntImmCost; 47 int getIntImmCost(const APInt &Imm, Type *Ty); 48 49 int getIntImmCost(unsigned Opcode, unsigned Idx, const APInt &Imm, Type *Ty); 50 int getIntImmCost(Intrinsic::ID IID, unsigned Idx, const APInt &Imm, 51 Type *Ty); 52 53 unsigned getUserCost(const User *U, ArrayRef<const Value *> Operands); 54 55 TTI::PopcntSupportKind getPopcntSupport(unsigned TyWidth); 56 bool isHardwareLoopProfitable(Loop *L, ScalarEvolution &SE, 57 AssumptionCache &AC, 58 TargetLibraryInfo *LibInfo, 59 HardwareLoopInfo &HWLoopInfo); 60 bool canSaveCmp(Loop *L, BranchInst **BI, ScalarEvolution *SE, LoopInfo *LI, 61 DominatorTree *DT, AssumptionCache *AC, 62 TargetLibraryInfo *LibInfo); 63 void getUnrollingPreferences(Loop *L, ScalarEvolution &SE, 64 TTI::UnrollingPreferences &UP); 65 66 /// @} 67 68 /// \name Vector TTI Implementations 69 /// @{ 70 bool useColdCCForColdCall(Function &F); 71 bool enableAggressiveInterleaving(bool LoopHasReductions); 72 TTI::MemCmpExpansionOptions enableMemCmpExpansion(bool OptSize, 73 bool IsZeroCmp) const; 74 bool enableInterleavedAccessVectorization(); 75 unsigned getNumberOfRegisters(bool Vector); 76 unsigned getRegisterBitWidth(bool Vector) const; 77 unsigned getCacheLineSize(); 78 unsigned getPrefetchDistance(); 79 unsigned getMaxInterleaveFactor(unsigned VF); 80 int vectorCostAdjustment(int Cost, unsigned Opcode, Type *Ty1, Type *Ty2); 81 int getArithmeticInstrCost( 82 unsigned Opcode, Type *Ty, 83 TTI::OperandValueKind Opd1Info = TTI::OK_AnyValue, 84 TTI::OperandValueKind Opd2Info = TTI::OK_AnyValue, 85 TTI::OperandValueProperties Opd1PropInfo = TTI::OP_None, 86 TTI::OperandValueProperties Opd2PropInfo = TTI::OP_None, 87 ArrayRef<const Value *> Args = ArrayRef<const Value *>()); 88 int getShuffleCost(TTI::ShuffleKind Kind, Type *Tp, int Index, Type *SubTp); 89 int getCastInstrCost(unsigned Opcode, Type *Dst, Type *Src, 90 const Instruction *I = nullptr); 91 int getCmpSelInstrCost(unsigned Opcode, Type *ValTy, Type *CondTy, 92 const Instruction *I = nullptr); 93 int getVectorInstrCost(unsigned Opcode, Type *Val, unsigned Index); 94 int getMemoryOpCost(unsigned Opcode, Type *Src, unsigned Alignment, 95 unsigned AddressSpace, const Instruction *I = nullptr); 96 int getInterleavedMemoryOpCost(unsigned Opcode, Type *VecTy, 97 unsigned Factor, 98 ArrayRef<unsigned> Indices, 99 unsigned Alignment, 100 unsigned AddressSpace, 101 bool UseMaskForCond = false, 102 bool UseMaskForGaps = false); 103 104 /// @} 105 }; 106 107 } // end namespace llvm 108 109 #endif 110