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Sanity warnings (WIP 🚧) #3

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jhvst opened this issue Jan 25, 2022 · 0 comments

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jhvst commented Jan 25, 2022

It would be nice to add some sanity warnings for compute shaders.

To start with:

Emit a warning if shader has a constant LocalSize on x-dimension less than the current subgroup size. Otherwise each invocation in the shader will be treated as a new subgroup, which makes use of subgroup operations impossible. In more abstract sense, this is a problem in the unclear semantics of what is a LocalSize in a shader and what is client side cmd_dispatch dimension, and how these two interact together.

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