C++ (Cpp) StoreSDNode::getAlignment示例

SDValue DAGTypeLegalizer::ExpandOp_NormalStore(SDNode *N, unsigned OpNo) {
  assert(ISD::isNormalStore(N) && "This routine only for normal stores!");
  assert(OpNo == 1 && "Can only expand the stored value so far");
  DebugLoc dl = N->getDebugLoc();

  StoreSDNode *St = cast<StoreSDNode>(N);
  MVT NVT = TLI.getTypeToTransformTo(St->getValue().getValueType());
  SDValue Chain = St->getChain();
  SDValue Ptr = St->getBasePtr();
  int SVOffset = St->getSrcValueOffset();
  unsigned Alignment = St->getAlignment();
  bool isVolatile = St->isVolatile();

  assert(NVT.isByteSized() && "Expanded type not byte sized!");
  unsigned IncrementSize = NVT.getSizeInBits() / 8;

  SDValue Lo, Hi;
  GetExpandedOp(St->getValue(), Lo, Hi);

  if (TLI.isBigEndian())
    std::swap(Lo, Hi);

  Lo = DAG.getStore(Chain, dl, Lo, Ptr, St->getSrcValue(), SVOffset,
                    isVolatile, Alignment);

  Ptr = DAG.getNode(ISD::ADD, dl, Ptr.getValueType(), Ptr,
                    DAG.getIntPtrConstant(IncrementSize));
  assert(isTypeLegal(Ptr.getValueType()) && "Pointers must be legal!");
  Hi = DAG.getStore(Chain, dl, Hi, Ptr, St->getSrcValue(),
                    SVOffset + IncrementSize,
                    isVolatile, MinAlign(Alignment, IncrementSize));

  return DAG.getNode(ISD::TokenFactor, dl, MVT::Other, Lo, Hi);
}

示例#2

显示文件

文件： LegalizeTypesGeneric.cpp 项目： jameister/llvm

SDValue DAGTypeLegalizer::ExpandOp_NormalStore(SDNode *N, unsigned OpNo) {
  assert(ISD::isNormalStore(N) && "This routine only for normal stores!");
  assert(OpNo == 1 && "Can only expand the stored value so far");
  SDLoc dl(N);

  StoreSDNode *St = cast<StoreSDNode>(N);
  EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(),
                                     St->getValue().getValueType());
  SDValue Chain = St->getChain();
  SDValue Ptr = St->getBasePtr();
  unsigned Alignment = St->getAlignment();
  bool isVolatile = St->isVolatile();
  bool isNonTemporal = St->isNonTemporal();
  const MDNode *TBAAInfo = St->getTBAAInfo();

  assert(NVT.isByteSized() && "Expanded type not byte sized!");
  unsigned IncrementSize = NVT.getSizeInBits() / 8;

  SDValue Lo, Hi;
  GetExpandedOp(St->getValue(), Lo, Hi);

  if (TLI.isBigEndian())
    std::swap(Lo, Hi);

  Lo = DAG.getStore(Chain, dl, Lo, Ptr, St->getPointerInfo(),
                    isVolatile, isNonTemporal, Alignment, TBAAInfo);

  Ptr = DAG.getNode(ISD::ADD, dl, Ptr.getValueType(), Ptr,
                    DAG.getConstant(IncrementSize, Ptr.getValueType()));
  Hi = DAG.getStore(Chain, dl, Hi, Ptr,
                    St->getPointerInfo().getWithOffset(IncrementSize),
                    isVolatile, isNonTemporal,
                    MinAlign(Alignment, IncrementSize), TBAAInfo);

  return DAG.getNode(ISD::TokenFactor, dl, MVT::Other, Lo, Hi);
}