1 //===-- NVPTXTargetTransformInfo.h - NVPTX 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 /// 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.
15 //===----------------------------------------------------------------------===//
17 #ifndef LLVM_LIB_TARGET_NVPTX_NVPTXTARGETTRANSFORMINFO_H
18 #define LLVM_LIB_TARGET_NVPTX_NVPTXTARGETTRANSFORMINFO_H
21 #include "NVPTXTargetMachine.h"
22 #include "llvm/Analysis/TargetTransformInfo.h"
23 #include "llvm/CodeGen/BasicTTIImpl.h"
24 #include "llvm/Target/TargetLowering.h"
28 class NVPTXTTIImpl : public BasicTTIImplBase<NVPTXTTIImpl> {
29 typedef BasicTTIImplBase<NVPTXTTIImpl> BaseT;
30 typedef TargetTransformInfo TTI;
33 const NVPTXSubtarget *ST;
34 const NVPTXTargetLowering *TLI;
36 const NVPTXSubtarget *getST() const { return ST; };
37 const NVPTXTargetLowering *getTLI() const { return TLI; };
40 explicit NVPTXTTIImpl(const NVPTXTargetMachine *TM, const Function &F)
41 : BaseT(TM, F.getParent()->getDataLayout()), ST(TM->getSubtargetImpl()),
42 TLI(ST->getTargetLowering()) {}
44 // Provide value semantics. MSVC requires that we spell all of these out.
45 NVPTXTTIImpl(const NVPTXTTIImpl &Arg)
46 : BaseT(static_cast<const BaseT &>(Arg)), ST(Arg.ST), TLI(Arg.TLI) {}
47 NVPTXTTIImpl(NVPTXTTIImpl &&Arg)
48 : BaseT(std::move(static_cast<BaseT &>(Arg))), ST(std::move(Arg.ST)),
49 TLI(std::move(Arg.TLI)) {}
51 bool hasBranchDivergence() { return true; }
53 bool isSourceOfDivergence(const Value *V);
55 int getArithmeticInstrCost(
56 unsigned Opcode, Type *Ty,
57 TTI::OperandValueKind Opd1Info = TTI::OK_AnyValue,
58 TTI::OperandValueKind Opd2Info = TTI::OK_AnyValue,
59 TTI::OperandValueProperties Opd1PropInfo = TTI::OP_None,
60 TTI::OperandValueProperties Opd2PropInfo = TTI::OP_None);
62 void getUnrollingPreferences(Loop *L, TTI::UnrollingPreferences &UP);
65 } // end namespace llvm