1//===-- NVPTXTargetTransformInfo.h - NVPTX 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/// NVPTX 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_NVPTX_NVPTXTARGETTRANSFORMINFO_H
18#define LLVM_LIB_TARGET_NVPTX_NVPTXTARGETTRANSFORMINFO_H
19
20#include "NVPTX.h"
21#include "NVPTXTargetMachine.h"
22#include "llvm/Analysis/TargetTransformInfo.h"
23#include "llvm/CodeGen/BasicTTIImpl.h"
24#include "llvm/Target/TargetLowering.h"
25
26namespace llvm {
27
28class NVPTXTTIImpl : public BasicTTIImplBase<NVPTXTTIImpl> {
29  typedef BasicTTIImplBase<NVPTXTTIImpl> BaseT;
30  typedef TargetTransformInfo TTI;
31  friend BaseT;
32
33  const NVPTXSubtarget *ST;
34  const NVPTXTargetLowering *TLI;
35
36  const NVPTXSubtarget *getST() const { return ST; };
37  const NVPTXTargetLowering *getTLI() const { return TLI; };
38
39public:
40  explicit NVPTXTTIImpl(const NVPTXTargetMachine *TM)
41      : BaseT(TM), ST(TM->getSubtargetImpl()), TLI(ST->getTargetLowering()) {}
42
43  // Provide value semantics. MSVC requires that we spell all of these out.
44  NVPTXTTIImpl(const NVPTXTTIImpl &Arg)
45      : BaseT(static_cast<const BaseT &>(Arg)), ST(Arg.ST), TLI(Arg.TLI) {}
46  NVPTXTTIImpl(NVPTXTTIImpl &&Arg)
47      : BaseT(std::move(static_cast<BaseT &>(Arg))), ST(std::move(Arg.ST)),
48        TLI(std::move(Arg.TLI)) {}
49  NVPTXTTIImpl &operator=(const NVPTXTTIImpl &RHS) {
50    BaseT::operator=(static_cast<const BaseT &>(RHS));
51    ST = RHS.ST;
52    TLI = RHS.TLI;
53    return *this;
54  }
55  NVPTXTTIImpl &operator=(NVPTXTTIImpl &&RHS) {
56    BaseT::operator=(std::move(static_cast<BaseT &>(RHS)));
57    ST = std::move(RHS.ST);
58    TLI = std::move(RHS.TLI);
59    return *this;
60  }
61
62  bool hasBranchDivergence() { return true; }
63
64  bool isSourceOfDivergence(const Value *V);
65
66  unsigned getArithmeticInstrCost(
67      unsigned Opcode, Type *Ty,
68      TTI::OperandValueKind Opd1Info = TTI::OK_AnyValue,
69      TTI::OperandValueKind Opd2Info = TTI::OK_AnyValue,
70      TTI::OperandValueProperties Opd1PropInfo = TTI::OP_None,
71      TTI::OperandValueProperties Opd2PropInfo = TTI::OP_None);
72};
73
74} // end namespace llvm
75
76#endif
77