<table border="1" cellspacing="0" cellpadding="8">
    <tr>
        <th>Issue</th>
        <td>
            <a href=https://github.com/llvm/llvm-project/issues/132077>132077</a>
        </td>
    </tr>

    <tr>
        <th>Summary</th>
        <td>
            llvm::ConstantStruct::get returns a zero initialiser
        </td>
    </tr>

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

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

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

<pre>
    LLVM Version: 19
OS: Ubuntu 24.04 LTS
Target Triple: x86_64-unknown-linux-gnu

When `llvm::ConstantStruct::get` is called with a named struct type and zero value members, the `llvm::Constant*` returned is automatically a `zeroinitialiser`

```cpp
llvm::ConstantStruct::get(
 llvm::dyn_cast<llvm::StructType>(finalTy->get_llvm_type()),
 {llvm::ConstantPointerNull::get(llPtrTy),
     llvm::ConstantInt::get(
 llvm::Type::getIntNTy(
             ctx->irCtx->llctx,
 ctx->irCtx->clangTargetInfo->getTypeWidth(
 ctx->irCtx->clangTargetInfo->getSizeType()
             )
         ),
 0u
     )}
)
```

I can understand the sentiment behind this.

Later in the code when I use `constVal->getAggregateElement(0u)`, it fails saying that the value is not an aggregate.

I see two possible solutions:

1. Change the API so that the structural integrity of the constant value is maintained - The values are stored as is.
2. Update `getAggregateElement` to consider this edge case and return a zero value of the element type instead.

I don't know if this was already found or fixed. If so, kindly ignore and close the issue.
</pre>
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