[Handshake] `nested_diamonds.mlir` with `--dynamic-parallelism=locking` deadlocks
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Handshake
HandshakeToHW
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Description
https://github.com/llvm/circt/blob/main/integration_test/Dialect/Handshake/nested_diamonds/nested_diamonds.mlir#L11-L13 currently deadlocks. Since cocotb/iverilog tests aren't enabled (yet) in CI, this isn't (yet) an error when check-circt-integration is run in CI.
CC @Dinistro
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- Read the whole issue, then the project's contributing guide.
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Research direction
Start with integration_test/Dialect/Handshake/nested_diamonds/nested_diamonds.mlir lines 11-13 and reproduce the test with --dynamic-parallelism=locking. Trace the deadlock in the Handshake dynamic-parallelism path, then verify the test completes and that check-circt-integration can detect the failure.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- cpp
- Domain
- compilers, testing
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 35/100