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Convert DXBC to DXIL (DirectX Bytecode to DirectX Intermediate Language)

Microsoft's open source DirectX Shader Compiler describes the format of a new intermediate language (IL) for HLSL shaders called DXIL.

The documentation makes reference to a converter from the previous HLSL IL, called DXBC, to the new DXIL: https://github.com/Microsoft/DirectXShaderCompiler/blob/master/docs/DXIL.rst.

However, I am unable to find the referenced dxbc2dxil tool, or any other way to convert DXBC to DXIL. I have tried passing DXBC files to the various tools in the DirectX Shader Compiler project, but none have accepted plain DXBC as input.

Is there currently a way to obtain DXIL from old DXBC?

Solution

  • My understanding of this documentation is that Microsoft will take charge of only providing DXIR to the vendor's drivers in the future. The DXBC2DXIL is a Microsoft internal only module.

    To my knowledge, nothing in the DirectX Shader Compiler repository has the capability to translate a DXBC IL to a DXIL.