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C++ TargetData::getBitsPerByte方法代码示例

本文整理汇总了C++中TargetData::getBitsPerByte方法的典型用法代码示例。如果您正苦于以下问题:C++ TargetData::getBitsPerByte方法的具体用法?C++ TargetData::getBitsPerByte怎么用?C++ TargetData::getBitsPerByte使用的例子?那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在TargetData的用法示例。


在下文中一共展示了TargetData::getBitsPerByte方法的1个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的C++代码示例。

示例1: assert

StructLayout::StructLayout(StructType *ST, const TargetData &TD) {
  assert(!ST->isOpaque() && "Cannot get layout of opaque structs");
  StructAlignment = 0;
  StructSize = 0;
  NumElements = ST->getNumElements();
  BitsPerByte = TD.getBitsPerByte();

  // Loop over each of the elements, placing them in memory.
  for (unsigned i = 0, e = NumElements; i != e; ++i) {
    Type *Ty = ST->getElementType(i);
    unsigned TyAlign = ST->isPacked() ? 1 : TD.getABITypeAlignment(Ty);

    // Add padding if necessary to align the data element properly.
    if ((StructSize & (TyAlign-1)) != 0)
      StructSize = TargetData::RoundUpAlignment(StructSize, TyAlign);

    // Keep track of maximum alignment constraint.
    StructAlignment = std::max(TyAlign, StructAlignment);

    MemberOffsets[i] = StructSize;
    StructSize += TD.getTypeAllocSize(Ty); // Consume space for this data item
  }

  // Empty structures have alignment of 1 byte.
  if (StructAlignment == 0) StructAlignment = 1;

  // Add padding to the end of the struct so that it could be put in an array
  // and all array elements would be aligned correctly.
  if ((StructSize & (StructAlignment-1)) != 0)
    StructSize = TargetData::RoundUpAlignment(StructSize, StructAlignment);
}
开发者ID:a1k0n,项目名称:llvm-dcpu16,代码行数:31,代码来源:TargetData.cpp


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