<table border="1" cellspacing="0" cellpadding="8">
    <tr>
        <th>Issue</th>
        <td>
            <a href=https://github.com/llvm/llvm-project/issues/99206>99206</a>
        </td>
    </tr>

    <tr>
        <th>Summary</th>
        <td>
            Implement the `NonUniformResourceIndex` HLSL Function
        </td>
    </tr>

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

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

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

<pre>
    - [ ] Implement `NonUniformResourceIndex` clang builtin,
- [ ] Link `NonUniformResourceIndex` clang builtin with `hlsl_intrinsics.h`
- [ ] Add sema checks for `NonUniformResourceIndex` to `CheckHLSLBuiltinFunctionCall` in `SemaChecking.cpp`
- [ ] Add codegen for `NonUniformResourceIndex` to `EmitHLSLBuiltinExpr` in `CGBuiltin.cpp`
- [ ] Add codegen tests to `clang/test/CodeGenHLSL/builtins/NonUniformResourceIndex.hlsl`
- [ ] Add sema tests to `clang/test/SemaHLSL/BuiltIns/NonUniformResourceIndex-errors.hlsl`
- [ ] Create the `int_spv_NonUniformResourceIndex` intrinsic in `IntrinsicsSPIRV.td`
- [ ] In SPIRVInstructionSelector.cpp create the `NonUniformResourceIndex` lowering and map  it to `int_spv_NonUniformResourceIndex` in `SPIRVInstructionSelector::selectIntrinsic`.
- [ ] Create SPIR-V backend test case in `llvm/test/CodeGen/SPIRV/hlsl-intrinsics/NonUniformResourceIndex.ll`

## DirectX

There were no DXIL opcodes found for `NonUniformResourceIndex`.

## SPIR-V

# [OpCopyObject](https://registry.khronos.org/SPIR-V/specs/unified1/SPIRV.html#OpCopyObject):

## Description:
  
Make a copy of *Operand*. There are no pointer dereferences involved.  
  
*Result Type* must equal *Operand* type. *Result Type* can be any type
except [**OpTypeVoid**](https://registry.khronos.org/SPIR-V/specs/unified1/SPIRV.html#OpTypeVoid).

<table>
<colgroup>
<col style="width: 20%" />
<col style="width: 20%" />
<col style="width: 20%" />
<col style="width: 20%" />
<col style="width: 20%" />
</colgroup>
<thead>
<tr>
<th>Word Count</th>
<th>Opcode</th>
<th>Results</th>
<th>Operands</th>
<th></th>
</tr>
</thead>
<tbody>
<tr>
<td class="tableblock halign-left valign-top"><p>4</p></td>
<td class="tableblock halign-left valign-top"><p>83</p></td>
<td
class="tableblock halign-left valign-top"><p><em>&lt;id&gt;</em><br />
<em>Result Type</em></p></td>
<td class="tableblock halign-left valign-top"><p><a
href="#ResultId"><em>Result &lt;id&gt;</em></a></p></td>
<td
class="tableblock halign-left valign-top"><p><em>&lt;id&gt;</em><br />
<em>Operand</em></p></td>
</tr>
</tbody>
</table>



## Test Case(s)

 
 ### Example 1
```hlsl
//dxc NonUniformResourceIndex_test.hlsl -T lib_6_8 -enable-16bit-types -O0

export float4 fn(float4 p1) {
    return NonUniformResourceIndex(p1);
}
```
## HLSL:

## Syntax


```syntax
any<> NonUniformResourceIndex(any<> index);
```


## Type Description

| Name  | [**Template Type**](https://github.com/MicrosoftDocs/win32/blob/docs/desktop-src//direct3dhlsl/../direct3dhlsl/dx-graphics-hlsl-data-types.md)| [**Component Type**](https://github.com/MicrosoftDocs/win32/blob/docs/desktop-src//direct3dhlsl/../direct3dhlsl/dx-graphics-hlsl-data-types.md) | Size |
|-------|--------------------------------------------------------------------|----------------------------------------------------------------------|------|
| *ret* | [**scalar**](https://github.com/MicrosoftDocs/win32/blob/docs/desktop-src//direct3dhlsl/../direct3dhlsl/dx-graphics-hlsl-scalar.md), [**vector**](https://github.com/MicrosoftDocs/win32/blob/docs/desktop-src//direct3dhlsl/../direct3dhlsl/dx-graphics-hlsl-vector.md), or [**matrix**](https://github.com/MicrosoftDocs/win32/blob/docs/desktop-src//direct3dhlsl/../direct3dhlsl/dx-graphics-hlsl-matrix.md) | **bool**, [**float**](../WinProg/windows-data-types), or [**int**](../WinProg/windows-data-types) | any |
| *index* | [**scalar**](https://github.com/MicrosoftDocs/win32/blob/docs/desktop-src//direct3dhlsl/../direct3dhlsl/dx-graphics-hlsl-scalar.md), [**vector**](https://github.com/MicrosoftDocs/win32/blob/docs/desktop-src//direct3dhlsl/../direct3dhlsl/dx-graphics-hlsl-vector.md), or [**matrix**](https://github.com/MicrosoftDocs/win32/blob/docs/desktop-src//direct3dhlsl/../direct3dhlsl/dx-graphics-hlsl-matrix.md) | **bool**, [**float**](../WinProg/windows-data-types), or [**int**](../WinProg/windows-data-types) | any |

## Minimum Shader Model

This function is supported in the following shader models.
|Shader Model | Supported|
|-------------|----------|
|[Shader Model 6](https://github.com/MicrosoftDocs/win32/blob/docs/desktop-src//direct3dhlsl/../direct3dhlsl/shader-model-6-0.md) and higher shader models | yes |

## Shader Stages



## See also


- [**Intrinsic Functions (DirectX HLSL)**](https://github.com/MicrosoftDocs/win32/blob/docs/desktop-src//direct3dhlsl/../direct3dhlsl/dx-graphics-hlsl-intrinsic-functions.md)
- **See [NonUniformResourceIndex semantics](https://microsoft.github.io/DirectX-Specs/d3d/WorkGraphs#nonuniformresourceindex-semantics)**
 - [**Resource Binding**](https://github.com/MicrosoftDocs/win32/blob/docs/desktop-src//direct3dhlsl/../direct3d12/resource-binding-in-hlsl.md).
</pre>
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