lib/Target/SystemZ/SystemZTargetTransformInfo.h

   1 //===-- SystemZTargetTransformInfo.h - SystemZ-specific TTI ---------------===//
   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
  10 #ifndef LLVM_LIB_TARGET_SYSTEMZ_SYSTEMZTARGETTRANSFORMINFO_H
  11 #define LLVM_LIB_TARGET_SYSTEMZ_SYSTEMZTARGETTRANSFORMINFO_H
  12
  13 #include "SystemZTargetMachine.h"
  14 #include "llvm/Analysis/TargetTransformInfo.h"
  15 #include "llvm/CodeGen/BasicTTIImpl.h"
  16
  17 namespace llvm {
  18
  19 class SystemZTTIImpl : public BasicTTIImplBase<SystemZTTIImpl> {
  20   typedef BasicTTIImplBase<SystemZTTIImpl> BaseT;
  21   typedef TargetTransformInfo TTI;
  22   friend BaseT;
  23
  24   const SystemZSubtarget *ST;
  25   const SystemZTargetLowering *TLI;
  26
  27   const SystemZSubtarget *getST() const { return ST; }
  28   const SystemZTargetLowering *getTLI() const { return TLI; }
  29
  30   unsigned const LIBCALL_COST = 30;
  31
  32 public:
  33   explicit SystemZTTIImpl(const SystemZTargetMachine *TM, const Function &F)
  34       : BaseT(TM, F.getParent()->getDataLayout()), ST(TM->getSubtargetImpl(F)),
  35         TLI(ST->getTargetLowering()) {}
  36
  37   /// \name Scalar TTI Implementations
  38   /// @{
  39
  40   unsigned getInliningThresholdMultiplier() { return 3; }
  41
  42   int getIntImmCost(const APInt &Imm, Type *Ty);
  43
  44   int getIntImmCost(unsigned Opcode, unsigned Idx, const APInt &Imm, Type *Ty);
  45   int getIntImmCost(Intrinsic::ID IID, unsigned Idx, const APInt &Imm,
  46                     Type *Ty);
  47
  48   TTI::PopcntSupportKind getPopcntSupport(unsigned TyWidth);
  49
  50   void getUnrollingPreferences(Loop *L, ScalarEvolution &SE,
  51                                TTI::UnrollingPreferences &UP);
  52
  53   bool isLSRCostLess(TargetTransformInfo::LSRCost &C1,
  54                      TargetTransformInfo::LSRCost &C2);
  55   /// @}
  56
  57   /// \name Vector TTI Implementations
  58   /// @{
  59
  60   unsigned getNumberOfRegisters(bool Vector);
  61   unsigned getRegisterBitWidth(bool Vector) const;
  62
  63   unsigned getCacheLineSize() { return 256; }
  64   unsigned getPrefetchDistance() { return 2000; }
  65   unsigned getMinPrefetchStride() { return 2048; }
  66
  67   bool hasDivRemOp(Type *DataType, bool IsSigned);
  68   bool prefersVectorizedAddressing() { return false; }
  69   bool LSRWithInstrQueries() { return true; }
  70   bool supportsEfficientVectorElementLoadStore() { return true; }
  71   bool enableInterleavedAccessVectorization() { return true; }
  72
  73   int getArithmeticInstrCost(
  74       unsigned Opcode, Type *Ty,
  75       TTI::OperandValueKind Opd1Info = TTI::OK_AnyValue,
  76       TTI::OperandValueKind Opd2Info = TTI::OK_AnyValue,
  77       TTI::OperandValueProperties Opd1PropInfo = TTI::OP_None,
  78       TTI::OperandValueProperties Opd2PropInfo = TTI::OP_None,
  79       ArrayRef<const Value *> Args = ArrayRef<const Value *>());
  80   int getShuffleCost(TTI::ShuffleKind Kind, Type *Tp, int Index, Type *SubTp);
  81   unsigned getVectorTruncCost(Type *SrcTy, Type *DstTy);
  82   unsigned getVectorBitmaskConversionCost(Type *SrcTy, Type *DstTy);
  83   int getCastInstrCost(unsigned Opcode, Type *Dst, Type *Src,
  84                        const Instruction *I = nullptr);
  85   int getCmpSelInstrCost(unsigned Opcode, Type *ValTy, Type *CondTy,
  86                          const Instruction *I = nullptr);
  87   int getVectorInstrCost(unsigned Opcode, Type *Val, unsigned Index);
  88   int getMemoryOpCost(unsigned Opcode, Type *Src, unsigned Alignment,
  89                       unsigned AddressSpace, const Instruction *I = nullptr);
  90
  91   int getInterleavedMemoryOpCost(unsigned Opcode, Type *VecTy,
  92                                  unsigned Factor,
  93                                  ArrayRef<unsigned> Indices,
  94                                  unsigned Alignment,
  95                                  unsigned AddressSpace);
  96   /// @}
  97 };
  98
  99 } // end namespace llvm
 100
 101 #endif