Exemplos de IRGenFunction::emitByteOffsetGEP em C++ (Cpp)

Exemplo n.º 1

Arquivo: StructLayout.cpp Projeto: Nirma/swift

Address ElementLayout::project(IRGenFunction &IGF, Address baseAddr,
                               NonFixedOffsets offsets,
                               const llvm::Twine &suffix) const {
  switch (getKind()) {
  case Kind::Empty:
    return getTypeForAccess().getUndefAddress();

  case Kind::Fixed:
    return IGF.Builder.CreateStructGEP(baseAddr,
                                       getStructIndex(),
                                       getByteOffset(),
                                 baseAddr.getAddress()->getName() + suffix);

  case Kind::NonFixed: {
    assert(offsets.hasValue());
    llvm::Value *offset =
      offsets.getValue()->getOffsetForIndex(IGF, getNonFixedElementIndex());
    return IGF.emitByteOffsetGEP(baseAddr.getAddress(), offset, getTypeForAccess(),
                                 baseAddr.getAddress()->getName() + suffix);
  }

  case Kind::InitialNonFixedSize:
    return IGF.Builder.CreateBitCast(baseAddr,
                                 getTypeForAccess().getStorageType()->getPointerTo(),
                                 baseAddr.getAddress()->getName() + suffix);
  }
  llvm_unreachable("bad element layout kind");
}