Preprocessor define for when code is being compiled for compute?

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Assessment

Difficulty
4/5
Estimated time
3-5 days
Newbie friendliness
30/100
Issue type
Feature
Clarity
Needs clarification
Activity status
Stale
Tech stack
csharp
Domain
computer-graphics

Research direction

No file, test, or entry point is named. Start by tracing how ComputeSharp distinguishes CPU compilation from GPU shader generation and whether that distinction is exposed to user code; done means the supported way to select the appropriate CPU or GPU implementation is clear.

Written by the indexing model from the issue text.

Description

question :question: untriaged :toolbox:

Is there a preprocessor define enabled for when the code is being compiled for compute vs. the normal CPU compiler?

I would like to be able to re-use as much code as I can, but the HLSL intrinsics don't do anything on the CPU side, whereas the System.Math equivalents won't work on the GPU. I would prefer to write a wrapper function around the couple of intrinsics I am using that conditionally points to the appropriate function, rather than maintain parallel versions of all the code that uses these intrinsics.

Thanks!

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C#
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Merged PRs (30d)
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