| Issue |
91489
|
| Summary |
[DirectX] Design and Implement TableGen specification of DXIL operation attributes
|
| Labels |
new issue
|
| Assignees |
|
| Reporter |
bharadwajy
|
Design and implement a format to specify following DXIL Operations attributes as defined in [`hctdb.py`](https://github.com/microsoft/DirectXShaderCompiler/blob/main/utils/hct/hctdb.py) in their corresponding TableGen records
- `fn_attr` - Attribute shorthand strings: rn=does not access memory,ro=only reads from memory,
- `is_deriv` - Bool indicating whether this is some kind of derivative
- `is_gradient` - Bool indicating whether this requires a gradient calculation
- `is_feedback` - Bool indicating whether this is a sampler feedback op
- `is_wave` - Bool indicating whether this requires in-wave, cross-lane functionality
- `requires_uniform_inputs` - Bool indicating whether this operation requires that all of its inputs are uniform across the wave
- `is_barrier` - Bool indicating whether this is a barrier operation
- `shader_stages` - shader stages to which this applies, empty for all.
- `is_reserved` - Bool that evaluates (dxil_class == "Reserved")
- `shader_model_translated` - minimum shader model required with translation by linker
- `props` - extra properties
Implement the functionality in TableGen backend, `DXILEmitter`, to generate necessary C++ data structures and/or tables for lowering passes to consume the attribute information.
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