1 //===-- PPCTargetTransformInfo.h - PPC specific TTI -------------*- C++ -*-===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
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.
15 //===----------------------------------------------------------------------===//
17 #ifndef LLVM_LIB_TARGET_POWERPC_PPCTARGETTRANSFORMINFO_H
18 #define LLVM_LIB_TARGET_POWERPC_PPCTARGETTRANSFORMINFO_H
21 #include "PPCTargetMachine.h"
22 #include "llvm/Analysis/TargetTransformInfo.h"
23 #include "llvm/CodeGen/BasicTTIImpl.h"
24 #include "llvm/Target/TargetLowering.h"
28 class PPCTTIImpl : public BasicTTIImplBase<PPCTTIImpl> {
29 typedef BasicTTIImplBase<PPCTTIImpl> BaseT;
30 typedef TargetTransformInfo TTI;
33 const PPCSubtarget *ST;
34 const PPCTargetLowering *TLI;
36 const PPCSubtarget *getST() const { return ST; }
37 const PPCTargetLowering *getTLI() const { return TLI; }
40 explicit PPCTTIImpl(const PPCTargetMachine *TM, const Function &F)
41 : BaseT(TM, F.getParent()->getDataLayout()), ST(TM->getSubtargetImpl(F)),
42 TLI(ST->getTargetLowering()) {}
44 /// \name Scalar TTI Implementations
47 using BaseT::getIntImmCost;
48 int getIntImmCost(const APInt &Imm, Type *Ty);
50 int getIntImmCost(unsigned Opcode, unsigned Idx, const APInt &Imm, Type *Ty);
51 int getIntImmCost(Intrinsic::ID IID, unsigned Idx, const APInt &Imm,
54 TTI::PopcntSupportKind getPopcntSupport(unsigned TyWidth);
55 void getUnrollingPreferences(Loop *L, TTI::UnrollingPreferences &UP);
59 /// \name Vector TTI Implementations
62 bool enableAggressiveInterleaving(bool LoopHasReductions);
63 bool expandMemCmp(Instruction *I, unsigned &MaxLoadSize);
64 bool enableInterleavedAccessVectorization();
65 unsigned getNumberOfRegisters(bool Vector);
66 unsigned getRegisterBitWidth(bool Vector);
67 unsigned getCacheLineSize();
68 unsigned getPrefetchDistance();
69 unsigned getMaxInterleaveFactor(unsigned VF);
70 int getArithmeticInstrCost(
71 unsigned Opcode, Type *Ty,
72 TTI::OperandValueKind Opd1Info = TTI::OK_AnyValue,
73 TTI::OperandValueKind Opd2Info = TTI::OK_AnyValue,
74 TTI::OperandValueProperties Opd1PropInfo = TTI::OP_None,
75 TTI::OperandValueProperties Opd2PropInfo = TTI::OP_None,
76 ArrayRef<const Value *> Args = ArrayRef<const Value *>());
77 int getShuffleCost(TTI::ShuffleKind Kind, Type *Tp, int Index, Type *SubTp);
78 int getCastInstrCost(unsigned Opcode, Type *Dst, Type *Src,
79 const Instruction *I = nullptr);
80 int getCmpSelInstrCost(unsigned Opcode, Type *ValTy, Type *CondTy,
81 const Instruction *I = nullptr);
82 int getVectorInstrCost(unsigned Opcode, Type *Val, unsigned Index);
83 int getMemoryOpCost(unsigned Opcode, Type *Src, unsigned Alignment,
84 unsigned AddressSpace, const Instruction *I = nullptr);
85 int getInterleavedMemoryOpCost(unsigned Opcode, Type *VecTy,
87 ArrayRef<unsigned> Indices,
89 unsigned AddressSpace);
94 } // end namespace llvm