lib/Target/PowerPC/PPCTargetTransformInfo.h

   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
  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
  95   /// @}
  96 };
  97
  98 } // end namespace llvm
  99
 100 #endif