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intermediate TTI implementation template and instead query up to the derived class for both the TargetMachine and the TargetLowering. Most of the derived types had a TLI cached already and there is no need to store a less precisely typed target machine pointer. This will in turn make it much cleaner to look up the TLI via a per-function subtarget instead of the generic subtarget, and it will pave the way toward pulling the subtarget used for unroll preferences into the same form once we are *always* using the function to look up the correct subtarget. llvm-svn: 227737
74 lines
2.6 KiB
C++
74 lines
2.6 KiB
C++
//===-- NVPTXTargetTransformInfo.h - NVPTX specific TTI ---------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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/// \file
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/// This file a TargetTransformInfo::Concept conforming object specific to the
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/// NVPTX target machine. It uses the target's detailed information to
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/// provide more precise answers to certain TTI queries, while letting the
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/// target independent and default TTI implementations handle the rest.
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///
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_LIB_TARGET_NVPTX_NVPTXTARGETTRANSFORMINFO_H
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#define LLVM_LIB_TARGET_NVPTX_NVPTXTARGETTRANSFORMINFO_H
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#include "NVPTX.h"
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#include "NVPTXTargetMachine.h"
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#include "llvm/Analysis/TargetTransformInfo.h"
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#include "llvm/CodeGen/BasicTTIImpl.h"
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#include "llvm/Target/TargetLowering.h"
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namespace llvm {
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class NVPTXTTIImpl : public BasicTTIImplBase<NVPTXTTIImpl> {
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typedef BasicTTIImplBase<NVPTXTTIImpl> BaseT;
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typedef TargetTransformInfo TTI;
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friend BaseT;
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const NVPTXTargetMachine *TM;
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const NVPTXTargetLowering *TLI;
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const NVPTXTargetMachine *getTM() const { return TM; };
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const NVPTXTargetLowering *getTLI() const { return TLI; };
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public:
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explicit NVPTXTTIImpl(const NVPTXTargetMachine *TM)
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: BaseT(TM), TM(TM), TLI(TM->getSubtargetImpl()->getTargetLowering()) {}
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// Provide value semantics. MSVC requires that we spell all of these out.
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NVPTXTTIImpl(const NVPTXTTIImpl &Arg)
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: BaseT(static_cast<const BaseT &>(Arg)), TM(Arg.TM), TLI(Arg.TLI) {}
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NVPTXTTIImpl(NVPTXTTIImpl &&Arg)
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: BaseT(std::move(static_cast<BaseT &>(Arg))), TM(std::move(Arg.TM)), TLI(std::move(Arg.TLI)) {}
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NVPTXTTIImpl &operator=(const NVPTXTTIImpl &RHS) {
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BaseT::operator=(static_cast<const BaseT &>(RHS));
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TM = RHS.TM;
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TLI = RHS.TLI;
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return *this;
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}
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NVPTXTTIImpl &operator=(NVPTXTTIImpl &&RHS) {
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BaseT::operator=(std::move(static_cast<BaseT &>(RHS)));
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TM = std::move(RHS.TM);
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TLI = std::move(RHS.TLI);
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return *this;
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}
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bool hasBranchDivergence() { return true; }
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unsigned getArithmeticInstrCost(
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unsigned Opcode, Type *Ty,
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TTI::OperandValueKind Opd1Info = TTI::OK_AnyValue,
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TTI::OperandValueKind Opd2Info = TTI::OK_AnyValue,
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TTI::OperandValueProperties Opd1PropInfo = TTI::OP_None,
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TTI::OperandValueProperties Opd2PropInfo = TTI::OP_None);
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};
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} // end namespace llvm
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#endif
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