<table border="1" cellspacing="0" cellpadding="8">
    <tr>
        <th>Issue</th>
        <td>
            <a href=https://github.com/llvm/llvm-project/issues/73510>73510</a>
        </td>
    </tr>

    <tr>
        <th>Summary</th>
        <td>
            How can I get precise pointee type and what is Address is for?
        </td>
    </tr>

    <tr>
      <th>Labels</th>
      <td>
            new issue
      </td>
    </tr>

    <tr>
      <th>Assignees</th>
      <td>
      </td>
    </tr>

    <tr>
      <th>Reporter</th>
      <td>
          ash1852
      </td>
    </tr>
</table>

<pre>
    I'm using llvm to implement some tranformation on IR, so there are some creation for AllocInst. If I create a AllocInst with element type **A**, I thought the type of created AllocInst should be pointer type of **A**, but it was not. The created AllocInst's type is a pointer type but its pointee type is null thus causing null dereference.
and after check the source code, i found the type of the AllocInst is set by using **PointerType \*PointerType::get(Type \*EltTy, unsigned AddressSpace)**
since AddressSpace==0, CImpl->PointerTypes[EltTy] was returned.
I've search for what AddressSpace is for but still did'nt get it. Can you explain it Or just help me to get a precise pointee type of pointer type?
thank you very much.


</pre>
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