<table border="1" cellspacing="0" cellpadding="8">
    <tr>
        <th>Issue</th>
        <td>
            <a href=https://github.com/llvm/llvm-project/issues/148270>148270</a>
        </td>
    </tr>

    <tr>
        <th>Summary</th>
        <td>
            [HLSL][SPIRV] Guess at the image format for storage images
        </td>
    </tr>

    <tr>
      <th>Labels</th>
      <td>
            HLSL,
            backend:SPIR-V
      </td>
    </tr>

    <tr>
      <th>Assignees</th>
      <td>
            s-perron
      </td>
    </tr>

    <tr>
      <th>Reporter</th>
      <td>
          s-perron
      </td>
    </tr>
</table>

<pre>
    Even in VK1.3, not all driver have to support reading and writing to a storage image without a format. If we were to use the `unknown` format, users may see a regression when compared to DXC. To make things easier to port, we will implement https://github.com/microsoft/DirectXShaderCompiler/pull/7632. At some point we may decide to make it the default.

- [ ] Add the new option `-fspv-use-unknown-image-format` to clang-dxc.
- [ ] Update the wg-hlsl spir-v resource proposal to reflect this change.
</pre>
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