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 public:
31   explicit SystemZTTIImpl(const SystemZTargetMachine *TM, const Function &F)
32       : BaseT(TM, F.getParent()->getDataLayout()), ST(TM->getSubtargetImpl(F)),
33         TLI(ST->getTargetLowering()) {}
34 
35   // Provide value semantics. MSVC requires that we spell all of these out.
36   SystemZTTIImpl(const SystemZTTIImpl &Arg)
37       : BaseT(static_cast<const BaseT &>(Arg)), ST(Arg.ST), TLI(Arg.TLI) {}
38   SystemZTTIImpl(SystemZTTIImpl &&Arg)
39       : BaseT(std::move(static_cast<BaseT &>(Arg))), ST(std::move(Arg.ST)),
40         TLI(std::move(Arg.TLI)) {}
41 
42   /// \name Scalar TTI Implementations
43   /// @{
44 
45   int getIntImmCost(const APInt &Imm, Type *Ty);
46 
47   int getIntImmCost(unsigned Opcode, unsigned Idx, const APInt &Imm, Type *Ty);
48   int getIntImmCost(Intrinsic::ID IID, unsigned Idx, const APInt &Imm,
49                     Type *Ty);
50 
51   TTI::PopcntSupportKind getPopcntSupport(unsigned TyWidth);
52 
53   void getUnrollingPreferences(Loop *L, TTI::UnrollingPreferences &UP);
54 
55   /// @}
56 
57   /// \name Vector TTI Implementations
58   /// @{
59 
60   unsigned getNumberOfRegisters(bool Vector);
61   unsigned getRegisterBitWidth(bool Vector);
62 
63   /// @}
64 };
65 
66 } // end namespace llvm
67 
68 #endif
69