runtimeverification / runtimeverification/llvm-backend
`MInt` syntax with no uses of `Int2MInt` crashes
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- Dominant language
- C++
- Stars
- 43
- Forks
- 22
- PR merge metrics
- No merged PRs in 30d
Description
Compiling this code crashes the code generator; if the commented line is un-commented then it will compile and run correctly.
module TEST
imports INT
imports MINT
syntax MInt{1}
// rule _:Int => Int2MInt(0)::MInt{1}
endmodule
If the code is ill-formed for some reason when the rule is not present, we should emit a friendlier error message either in the frontend or in the backend.
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First steps
- Read the whole issue, then the project's contributing guide.
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- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start by compiling the provided K code with and without the commented rule to reproduce the code-generator crash. Trace whether the invalid MInt syntax is rejected in the frontend or backend; done means the compiler no longer crashes and emits a friendly error when the rule is absent.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- cpp
- Domain
- compilers
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 25/100