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/Target/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   TTI::PopcntSupportKind getPopcntSupport(unsigned TyWidth);
55   void getUnrollingPreferences(Loop *L, TTI::UnrollingPreferences &UP);
56 
57   /// @}
58 
59   /// \name Vector TTI Implementations
60   /// @{
61 
62   bool enableAggressiveInterleaving(bool LoopHasReductions);
63   bool enableInterleavedAccessVectorization();
64   unsigned getNumberOfRegisters(bool Vector);
65   unsigned getRegisterBitWidth(bool Vector);
66   unsigned getCacheLineSize();
67   unsigned getPrefetchDistance();
68   unsigned getMaxInterleaveFactor(unsigned VF);
69   int getArithmeticInstrCost(
70       unsigned Opcode, Type *Ty,
71       TTI::OperandValueKind Opd1Info = TTI::OK_AnyValue,
72       TTI::OperandValueKind Opd2Info = TTI::OK_AnyValue,
73       TTI::OperandValueProperties Opd1PropInfo = TTI::OP_None,
74       TTI::OperandValueProperties Opd2PropInfo = TTI::OP_None,
75       ArrayRef<const Value *> Args = ArrayRef<const Value *>());
76   int getShuffleCost(TTI::ShuffleKind Kind, Type *Tp, int Index, Type *SubTp);
77   int getCastInstrCost(unsigned Opcode, Type *Dst, Type *Src);
78   int getCmpSelInstrCost(unsigned Opcode, Type *ValTy, Type *CondTy);
79   int getVectorInstrCost(unsigned Opcode, Type *Val, unsigned Index);
80   int getMemoryOpCost(unsigned Opcode, Type *Src, unsigned Alignment,
81                       unsigned AddressSpace);
82   int getInterleavedMemoryOpCost(unsigned Opcode, Type *VecTy,
83                                  unsigned Factor,
84                                  ArrayRef<unsigned> Indices,
85                                  unsigned Alignment,
86                                  unsigned AddressSpace);
87 
88   /// @}
89 };
90 
91 } // end namespace llvm
92 
93 #endif
94