microsoft / microsoft/DirectXShaderCompiler
Make HLK test from llvm/offload-test-suite#225
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- Dominant language
- C++
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Description
Description
We discovered an issue with Intel UHD GPU drivers not respecting memory sequential consistency. We have a reduced test case https://github.com/llvm/offload-test-suite/pull/225 which we should convert to an HLK test.
In the short term the test can be compiled with DXC, however since it is legal for the frontend to optimize and eliminate the intermediate load, we should also consider an approach that allows us to have this test preserved in DXIL.
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start with the reduced test in llvm/offload-test-suite#225 and inspect the repository’s existing HLK tests and DXC/DXIL test entry points. Determine how to convert the case into an HLK test and how the intermediate load can be preserved in DXIL. Done means the test is integrated and catches the Intel UHD GPU memory-consistency issue.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- cpp
- Domain
- compilers, testing-qa
- Issue type
- Feature
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 25/100