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Issues list

GVN misunderstands aliasing, can create overlapping assignments (again) A-mir-opt Area: MIR optimizations A-mir-opt-GVN Area: MIR opt Global Value Numbering (GVN) A-rustlantis A miscompilation found by Rustlantis C-bug Category: This is a bug. I-miscompile Issue: Correct Rust code lowers to incorrect machine code I-unsound Issue: A soundness hole (worst kind of bug), see: https://en.wikipedia.org/wiki/Soundness P-medium Medium priority T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#141313 opened May 20, 2025 by saethlin
@dianqk
3
EarlyOtherwiseBranch can insert storage markers incorrectly, creating use of a dead local A-mir-opt Area: MIR optimizations A-rustlantis A miscompilation found by Rustlantis C-bug Category: This is a bug. I-miscompile Issue: Correct Rust code lowers to incorrect machine code I-unsound Issue: A soundness hole (worst kind of bug), see: https://en.wikipedia.org/wiki/Soundness P-medium Medium priority T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#141212 opened May 18, 2025 by saethlin
1
@dianqk
CopyProp doesn't always respect Tree Borrows A-mir-opt Area: MIR optimizations A-rustlantis A miscompilation found by Rustlantis C-bug Category: This is a bug. I-miscompile Issue: Correct Rust code lowers to incorrect machine code I-unsound Issue: A soundness hole (worst kind of bug), see: https://en.wikipedia.org/wiki/Soundness P-medium Medium priority T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#141122 opened May 17, 2025 by saethlin
1
ReferencePropagation tries to reuse moved-from Operands A-mir-opt Area: MIR optimizations A-rustlantis A miscompilation found by Rustlantis C-bug Category: This is a bug. I-miscompile Issue: Correct Rust code lowers to incorrect machine code I-unsound Issue: A soundness hole (worst kind of bug), see: https://en.wikipedia.org/wiki/Soundness P-medium Medium priority T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#141101 opened May 16, 2025 by saethlin
1
Heisen-misoptimisation on x86_64 A-LLVM Area: Code generation parts specific to LLVM. Both correctness bugs and optimization-related issues. A-rustlantis A miscompilation found by Rustlantis I-unsound Issue: A soundness hole (worst kind of bug), see: https://en.wikipedia.org/wiki/Soundness P-medium Medium priority T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#112213 opened Jun 2, 2023 by cbeuw
7
ProTip! What’s not been updated in a month: updated:<2025-05-07.