| Issue |
83177
|
| Summary |
[DirectX] DXContainer support for SM 6.8 feature flags
|
| Labels |
backend:DirectX
|
| Assignees |
|
| Reporter |
llvm-beanz
|
Shader Model 6.8 adds new feature flags that are exposed in the DX Container:
>From DXC:
```c
// SM 6.8+
const uint64_t ShaderFeatureInfo_SampleCmpGradientOrBias = 0x80000000;
const uint64_t ShaderFeatureInfo_ExtendedCommandInfo = 0x100000000;
// Experimental SM 6.9+ - Reserved, not yet supported.
// WaveMMA slots in between two SM 6.6 feature bits.
const uint64_t ShaderFeatureInfo_WaveMMA = 0x8000000;
```
The flags get exposed as constants here: https://github.com/llvm/llvm-project/blob/main/llvm/include/llvm/BinaryFormat/DXContainerConstants.def
We'll need YAML tests that support round tripping the flags in and out of DX Containers like the test here:
https://github.com/llvm/llvm-project/blob/main/llvm/test/tools/obj2yaml/DXContainer/ShaderFlags.yaml
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