lib/Target/PowerPC/PPCTargetTransformInfo.h

   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 "PPC.h"
  20 #include "PPCTargetMachine.h"
  21 #include "llvm/Analysis/TargetTransformInfo.h"
  22 #include "llvm/CodeGen/BasicTTIImpl.h"
  23 #include "llvm/CodeGen/TargetLowering.h"
  24
  25 namespace llvm {
  26
  27 class PPCTTIImpl : public BasicTTIImplBase<PPCTTIImpl> {
  28   typedef BasicTTIImplBase<PPCTTIImpl> BaseT;
  29   typedef TargetTransformInfo TTI;
  30   friend BaseT;
  31
  32   const PPCSubtarget *ST;
  33   const PPCTargetLowering *TLI;
  34
  35   const PPCSubtarget *getST() const { return ST; }
  36   const PPCTargetLowering *getTLI() const { return TLI; }
  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   void getUnrollingPreferences(Loop *L, ScalarEvolution &SE,
  57                                TTI::UnrollingPreferences &UP);
  58
  59   /// @}
  60
  61   /// \name Vector TTI Implementations
  62   /// @{
  63   bool useColdCCForColdCall(Function &F);
  64   bool enableAggressiveInterleaving(bool LoopHasReductions);
  65   const TTI::MemCmpExpansionOptions *enableMemCmpExpansion(
  66       bool IsZeroCmp) const;
  67   bool enableInterleavedAccessVectorization();
  68   unsigned getNumberOfRegisters(bool Vector);
  69   unsigned getRegisterBitWidth(bool Vector) const;
  70   unsigned getCacheLineSize();
  71   unsigned getPrefetchDistance();
  72   unsigned getMaxInterleaveFactor(unsigned VF);
  73   int vectorCostAdjustment(int Cost, unsigned Opcode, Type *Ty1, Type *Ty2);
  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 UseMaskForCond = false,
  95                                  bool UseMaskForGaps = false);
  96
  97   /// @}
  98 };
  99
 100 } // end namespace llvm
 101
 102 #endif