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JumpThreading miscompiles union field reads after sibling writes, breaking safe Rust memory safety (missing aliasing flood in value_analysis)
C-bugCategory: This is a bug.Category: This is a bug.I-miscompileIssue: Correct Rust code lowers to incorrect machine codeIssue: Correct Rust code lowers to incorrect machine codeI-prioritizeIssue needs a team member to assess the impact. Will be replaced by P-{low,medium,high,critical}Issue needs a team member to assess the impact. Will be replaced by P-{low,medium,high,critical}needs-triageThis issue may need triage. Remove it if it has been sufficiently triaged.This issue may need triage. Remove it if it has been sufficiently triaged.regression-from-stable-to-stablePerformance or correctness regression from one stable version to another.Performance or correctness regression from one stable version to another.T-compilerRelevant to the compiler team, which will review and decide on the PR/issue.Relevant to the compiler team, which will review and decide on the PR/issue.WG-mir-optWorking group: MIR optimizationsWorking group: MIR optimizationsStatus: Open.#161898In rust-lang/rust;Tracking Issue for Rustc Public: Expose Type and Const Parameter Constraints
C-tracking-issueCategory: An issue tracking the progress of sth. like the implementation of an RFCCategory: An issue tracking the progress of sth. like the implementation of an RFCS-tracking-unimplementedStatus: The feature has not been implemented.Status: The feature has not been implemented.T-libsRelevant to the library team, which will review and decide on the PR/issue.Relevant to the library team, which will review and decide on the PR/issue.Status: Open.#161892In rust-lang/rust;Tracking issue for release notes of #161681: Cross-compile i686-pc-windows-gnu std from x86_64
A-CIArea: Our Github Actions CIArea: Our Github Actions CIA-testsuiteArea: The testsuite used to check the correctness of rustcArea: The testsuite used to check the correctness of rustcneeds-triageThis issue may need triage. Remove it if it has been sufficiently triaged.This issue may need triage. Remove it if it has been sufficiently triaged.relnotesMarks issues that should be documented in the release notes of the next release.Marks issues that should be documented in the release notes of the next release.relnotes-tracking-issueMarks issues tracking what text to put in release notes.Marks issues tracking what text to put in release notes.T-infraRelevant to the infrastructure team, which will review and decide on the PR/issue.Relevant to the infrastructure team, which will review and decide on the PR/issue.Status: Open.Nightly shows confusing diagnostics mentioning
ZeroablePrimitivewithout apparent reasonC-bugCategory: This is a bug.Category: This is a bug.I-prioritizeIssue needs a team member to assess the impact. Will be replaced by P-{low,medium,high,critical}Issue needs a team member to assess the impact. Will be replaced by P-{low,medium,high,critical}needs-triageThis issue may need triage. Remove it if it has been sufficiently triaged.This issue may need triage. Remove it if it has been sufficiently triaged.regression-from-stable-to-nightlyPerformance or correctness regression from stable to nightly.Performance or correctness regression from stable to nightly.Status: Open.#161882In rust-lang/rust;bootstrap injects
feature(rustdoc_internals)into every doctestT-bootstrapRelevant to the bootstrap subteam: Rust's build system (x.py and src/bootstrap)Relevant to the bootstrap subteam: Rust's build system (x.py and src/bootstrap)Status: Open.#161881In rust-lang/rust;instantiating impl generic args with
'emptyis unsoundA-higher-rankedArea: Higher-ranked things (e.g., lifetimes, types, trait bounds aka HRTBs)Area: Higher-ranked things (e.g., lifetimes, types, trait bounds aka HRTBs)A-lifetimesArea: Lifetimes / regionsArea: Lifetimes / regionsA-trait-systemArea: Trait systemArea: Trait systemI-unsoundIssue: A soundness hole (worst kind of bug), see: https://en.wikipedia.org/wiki/SoundnessIssue: A soundness hole (worst kind of bug), see: https://en.wikipedia.org/wiki/SoundnessP-mediumMedium priorityMedium priorityT-typesRelevant to the types team, which will review and decide on the PR/issue.Relevant to the types team, which will review and decide on the PR/issue.Status: Open.#161864In rust-lang/rust;bootstrap: have a flag to switch stage0 alt build
C-feature-requestCategory: A feature request, i.e: not implemented / a PR.Category: A feature request, i.e: not implemented / a PR.needs-triageThis issue may need triage. Remove it if it has been sufficiently triaged.This issue may need triage. Remove it if it has been sufficiently triaged.P-lowLow priorityLow priorityT-bootstrapRelevant to the bootstrap subteam: Rust's build system (x.py and src/bootstrap)Relevant to the bootstrap subteam: Rust's build system (x.py and src/bootstrap)Status: Open.#161856In rust-lang/rust;llvm error when building
compiler_builtinswith rustc with sancov since update to llvm 23A-code-coverageArea: Source-based code coverage (-Cinstrument-coverage)Area: Source-based code coverage (-Cinstrument-coverage)A-LLVMArea: Code generation parts specific to LLVM. Both correctness bugs and optimization-related issues.Area: Code generation parts specific to LLVM. Both correctness bugs and optimization-related issues.C-bugCategory: This is a bug.Category: This is a bug.I-crashIssue: The compiler crashes (SIGSEGV, SIGABRT, etc). Use I-ICE instead when the compiler panics.Issue: The compiler crashes (SIGSEGV, SIGABRT, etc). Use I-ICE instead when the compiler panics.needs-triageThis issue may need triage. Remove it if it has been sufficiently triaged.This issue may need triage. Remove it if it has been sufficiently triaged.Status: Open.#161855In rust-lang/rust;indexing expressions can ignore fake borrows when an index diverges
A-MIRArea: Mid-level IR (MIR) - https://blog.rust-lang.org/2016/04/19/MIR.htmlArea: Mid-level IR (MIR) - https://blog.rust-lang.org/2016/04/19/MIR.htmlA-sliceArea: `[T]`Area: `[T]`C-bugCategory: This is a bug.Category: This is a bug.I-unsoundIssue: A soundness hole (worst kind of bug), see: https://en.wikipedia.org/wiki/SoundnessIssue: A soundness hole (worst kind of bug), see: https://en.wikipedia.org/wiki/SoundnessP-highHigh priorityHigh priorityT-compilerRelevant to the compiler team, which will review and decide on the PR/issue.Relevant to the compiler team, which will review and decide on the PR/issue.Status: Open.#161852In rust-lang/rust;interesting codegen difference between idiomatic check and pattern matching discriminant checks
A-codegenArea: Code generationArea: Code generationA-enumArea: Enums (discriminated unions, or more generally ADTs (algebraic data types))Area: Enums (discriminated unions, or more generally ADTs (algebraic data types))A-patternsRelating to patterns and pattern matchingRelating to patterns and pattern matchingC-bugCategory: This is a bug.Category: This is a bug.needs-triageThis issue may need triage. Remove it if it has been sufficiently triaged.This issue may need triage. Remove it if it has been sufficiently triaged.Status: Open.#161851In rust-lang/rust;Never type fallback with integer literal without type fails to compile
A-associated-itemsArea: Associated items (types, constants & functions)Area: Associated items (types, constants & functions)A-inferenceArea: Type inferenceArea: Type inferenceC-bugCategory: This is a bug.Category: This is a bug.D-confusingDiagnostics: Confusing error or lint that should be reworked.Diagnostics: Confusing error or lint that should be reworked.D-terseDiagnostics: An error or lint that doesn't give enough information about the problem at hand.Diagnostics: An error or lint that doesn't give enough information about the problem at hand.needs-triageThis issue may need triage. Remove it if it has been sufficiently triaged.This issue may need triage. Remove it if it has been sufficiently triaged.T-typesRelevant to the types team, which will review and decide on the PR/issue.Relevant to the types team, which will review and decide on the PR/issue.Status: Open.#161848In rust-lang/rust;Freezecheck ignores lifetimesA-const-evalArea: Constant evaluation, covers all const contexts (static, const fn, ...)Area: Constant evaluation, covers all const contexts (static, const fn, ...)A-constant-promotionArea: constant promotionArea: constant promotionA-lifetimesArea: Lifetimes / regionsArea: Lifetimes / regionsA-temporary-lifetime-extensionArea: temporary lifetime extensionArea: temporary lifetime extensionC-bugCategory: This is a bug.Category: This is a bug.F-freeze`#![feature(freeze)]``#![feature(freeze)]`needs-triageThis issue may need triage. Remove it if it has been sufficiently triaged.This issue may need triage. Remove it if it has been sufficiently triaged.T-typesRelevant to the types team, which will review and decide on the PR/issue.Relevant to the types team, which will review and decide on the PR/issue.Status: Open.#161845In rust-lang/rust;