/Users/buildslave/jenkins/workspace/clang-stage2-coverage-R/llvm/lib/Target/PowerPC/PPCTargetTransformInfo.h
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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 "PPCTargetMachine.h" |
20 | | #include "llvm/Analysis/TargetTransformInfo.h" |
21 | | #include "llvm/CodeGen/BasicTTIImpl.h" |
22 | | #include "llvm/CodeGen/TargetLowering.h" |
23 | | |
24 | | namespace llvm { |
25 | | |
26 | | class PPCTTIImpl : public BasicTTIImplBase<PPCTTIImpl> { |
27 | | typedef BasicTTIImplBase<PPCTTIImpl> BaseT; |
28 | | typedef TargetTransformInfo TTI; |
29 | | friend BaseT; |
30 | | |
31 | | const PPCSubtarget *ST; |
32 | | const PPCTargetLowering *TLI; |
33 | | |
34 | 654 | const PPCSubtarget *getST() const { return ST; } |
35 | 155k | const PPCTargetLowering *getTLI() const { return TLI; } |
36 | | bool mightUseCTR(BasicBlock *BB, TargetLibraryInfo *LibInfo); |
37 | | |
38 | | public: |
39 | | explicit PPCTTIImpl(const PPCTargetMachine *TM, const Function &F) |
40 | | : BaseT(TM, F.getParent()->getDataLayout()), ST(TM->getSubtargetImpl(F)), |
41 | 97.9k | 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 | | bool isHardwareLoopProfitable(Loop *L, ScalarEvolution &SE, |
57 | | AssumptionCache &AC, |
58 | | TargetLibraryInfo *LibInfo, |
59 | | HardwareLoopInfo &HWLoopInfo); |
60 | | bool canSaveCmp(Loop *L, BranchInst **BI, ScalarEvolution *SE, LoopInfo *LI, |
61 | | DominatorTree *DT, AssumptionCache *AC, |
62 | | TargetLibraryInfo *LibInfo); |
63 | | void getUnrollingPreferences(Loop *L, ScalarEvolution &SE, |
64 | | TTI::UnrollingPreferences &UP); |
65 | | |
66 | | /// @} |
67 | | |
68 | | /// \name Vector TTI Implementations |
69 | | /// @{ |
70 | | bool useColdCCForColdCall(Function &F); |
71 | | bool enableAggressiveInterleaving(bool LoopHasReductions); |
72 | | TTI::MemCmpExpansionOptions enableMemCmpExpansion(bool OptSize, |
73 | | bool IsZeroCmp) const; |
74 | | bool enableInterleavedAccessVectorization(); |
75 | | unsigned getNumberOfRegisters(bool Vector); |
76 | | unsigned getRegisterBitWidth(bool Vector) const; |
77 | | unsigned getCacheLineSize(); |
78 | | unsigned getPrefetchDistance(); |
79 | | unsigned getMaxInterleaveFactor(unsigned VF); |
80 | | int vectorCostAdjustment(int Cost, unsigned Opcode, Type *Ty1, Type *Ty2); |
81 | | int getArithmeticInstrCost( |
82 | | unsigned Opcode, Type *Ty, |
83 | | TTI::OperandValueKind Opd1Info = TTI::OK_AnyValue, |
84 | | TTI::OperandValueKind Opd2Info = TTI::OK_AnyValue, |
85 | | TTI::OperandValueProperties Opd1PropInfo = TTI::OP_None, |
86 | | TTI::OperandValueProperties Opd2PropInfo = TTI::OP_None, |
87 | | ArrayRef<const Value *> Args = ArrayRef<const Value *>()); |
88 | | int getShuffleCost(TTI::ShuffleKind Kind, Type *Tp, int Index, Type *SubTp); |
89 | | int getCastInstrCost(unsigned Opcode, Type *Dst, Type *Src, |
90 | | const Instruction *I = nullptr); |
91 | | int getCmpSelInstrCost(unsigned Opcode, Type *ValTy, Type *CondTy, |
92 | | const Instruction *I = nullptr); |
93 | | int getVectorInstrCost(unsigned Opcode, Type *Val, unsigned Index); |
94 | | int getMemoryOpCost(unsigned Opcode, Type *Src, unsigned Alignment, |
95 | | unsigned AddressSpace, const Instruction *I = nullptr); |
96 | | int getInterleavedMemoryOpCost(unsigned Opcode, Type *VecTy, |
97 | | unsigned Factor, |
98 | | ArrayRef<unsigned> Indices, |
99 | | unsigned Alignment, |
100 | | unsigned AddressSpace, |
101 | | bool UseMaskForCond = false, |
102 | | bool UseMaskForGaps = false); |
103 | | |
104 | | /// @} |
105 | | }; |
106 | | |
107 | | } // end namespace llvm |
108 | | |
109 | | #endif |