`check_abi.rs` fails due to ArgAttributes mismatch with the ABI on LoongArch64
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C-bug
needs-triage
- Dominant language
- Rust
- Stars
- 119k
- Forks
- 16.2k
- PR merge metrics
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Description
I tried this code on LoongArch64:
./x.py test
thread 'rustc' (334050) panicked at rust/tests/ui-fulldeps/rustc_public/check_abi.rs:113:5:
assertion `left == right` failed
left: Sext
right: None
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
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- Open a pull request that references the issue number.
Research direction
Start at rust/tests/ui-fulldeps/rustc_public/check_abi.rs:113 and reproduce the failure with ./x.py test on LoongArch64. Trace the ArgAttributes comparison and ABI expectation; done means the test no longer reports Sext versus None for this target.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- rust
- Domain
- compilers
- Issue type
- Bug
- Difficulty
- 3/5
- Estimated time
- 1-2 days
- Activity status
- Active
- Clarity
- Mostly clear
- Newbie friendliness
- 48/100