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std doesn't compile for riscv32gc-unknown-linux-musl

A-atomicArea: Atomics, barriers, and sync primitivesArea: Atomics, barriers, and sync primitives

C-bugCategory: This is a bug.Category: This is a bug.

O-linuxOperating system: LinuxOperating system: Linux

O-muslTarget: The musl libcTarget: The musl libc

O-riscvTarget: RISC-V architectureTarget: RISC-V architecture

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.

#143440 In rust-lang/rust;

· Noratrieb opened on Jul 4, 2025

<code>sys::thread_local::key::tests::destructors</code> fails under x86 Windows 7

A-atomicArea: Atomics, barriers, and sync primitivesArea: Atomics, barriers, and sync primitives

A-destructorsArea: Destructors (`Drop`, …)Area: Destructors (`Drop`, …)

A-testsuiteArea: The testsuite used to check the correctness of rustcArea: The testsuite used to check the correctness of rustc

A-thread-localsArea: Thread local storage (TLS)Area: Thread local storage (TLS)

C-bugCategory: This is a bug.Category: This is a bug.

O-windows-7OS: Windows 7 or Windows Server 2008 R2 or etc.OS: Windows 7 or Windows Server 2008 R2 or etc.

O-windows-msvcToolchain: MSVC, Operating system: WindowsToolchain: MSVC, Operating system: Windows

O-x86_32Target: x86 processors, 32 bit (like i686-*) (IA-32)Target: x86 processors, 32 bit (like i686-*) (IA-32)

P-lowLow priorityLow priority

regression-from-stable-to-betaPerformance or correctness regression from stable to beta.Performance or correctness regression from stable to beta.

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.

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.

#141300 In rust-lang/rust;

· PaulDance opened on May 20, 2025

armv4t-none-eabi cannot use compiler_fence

A-atomicArea: Atomics, barriers, and sync primitivesArea: Atomics, barriers, and sync primitives

A-codegenArea: Code generationArea: Code generation

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.

O-ArmTarget: 32-bit Arm processors (armv6, armv7, thumb...), including 64-bit Arm in AArch32 stateTarget: 32-bit Arm processors (armv6, armv7, thumb...), including 64-bit Arm in AArch32 state

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.

Status: Open.

#140105 In rust-lang/rust;

· EvansJahja opened on Apr 21, 2025

Atomic*::as_ptr unnecessarily restricts operations on the pointer to atomic operations

A-atomicArea: Atomics, barriers, and sync primitivesArea: Atomics, barriers, and sync primitives

A-docsArea: Documentation for any part of the project, including the compiler, standard library, and toolsArea: Documentation for any part of the project, including the compiler, standard library, and tools

E-mediumCall for participation: Medium difficulty. Experience needed to fix: Intermediate.Call for participation: Medium difficulty. Experience needed to fix: Intermediate.

T-opsemRelevant to the opsem teamRelevant to the opsem team

Status: Open.

#138246 In rust-lang/rust;

· briansmith opened on Mar 8, 2025

atomic fences cause errors and atomic instructions are emitted without fences on <code>nvptx64-nvidia-cuda</code>

A-atomicArea: Atomics, barriers, and sync primitivesArea: Atomics, barriers, and sync primitives

C-bugCategory: This is a bug.Category: This is a bug.

O-NVPTXTarget: the NVPTX LLVM backend for running rust on GPUs, https://llvm.org/docs/NVPTXUsage.htmlTarget: the NVPTX LLVM backend for running rust on GPUs, https://llvm.org/docs/NVPTXUsage.html

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.

Status: Open.

#136480 In rust-lang/rust;

· usamoi opened on Feb 3, 2025

atomic RMW intrinsics: avoid unnecessary ptr/int conversions

A-atomicArea: Atomics, barriers, and sync primitivesArea: Atomics, barriers, and sync primitives

A-codegenArea: Code generationArea: Code generation

A-intrinsicsArea: IntrinsicsArea: Intrinsics

A-strict-provenanceArea: Strict provenance for raw pointersArea: Strict provenance for raw pointers

C-optimizationCategory: An issue highlighting optimization opportunities or PRs implementing suchCategory: An issue highlighting optimization opportunities or PRs implementing such

Status: Open.

#134617 In rust-lang/rust;

· RalfJung opened on Dec 21, 2024

Using <code>Release</code> in the <code>store</code> operation for <code>make_mut</code> just prevent out-of-thin-air value?

A-atomicArea: Atomics, barriers, and sync primitivesArea: Atomics, barriers, and sync primitives

C-discussionCategory: Discussion or questions that doesn't represent real issues.Category: Discussion or questions that doesn't represent real issues.

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.

#133284 In rust-lang/rust;

· xmh0511 opened on Nov 21, 2024

Tracking issue for release notes of #122408: Use futex-based synchronization on Apple platforms

A-atomicArea: Atomics, barriers, and sync primitivesArea: Atomics, barriers, and sync primitives

O-appleOperating system: Apple (macOS, iOS, tvOS, visionOS, watchOS)Operating system: Apple (macOS, iOS, tvOS, visionOS, watchOS)

O-unixOperating system: Unix-likeOperating system: Unix-like

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-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.

#132701 In rust-lang/rust;

· rustbot opened on Nov 6, 2024

Can we avoid the heap allocation in macOS Mutex/Condvar?

A-atomicArea: Atomics, barriers, and sync primitivesArea: Atomics, barriers, and sync primitives

C-optimizationCategory: An issue highlighting optimization opportunities or PRs implementing suchCategory: An issue highlighting optimization opportunities or PRs implementing such

O-macosOperating system: macOSOperating system: macOS

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.

#131005 In rust-lang/rust;

· RalfJung opened on Sep 29, 2024

Support 128-bit atomics on x86_64-fortanix-unknown-sgx

A-atomicArea: Atomics, barriers, and sync primitivesArea: Atomics, barriers, and sync primitives

O-SGXTarget: SGXTarget: SGX

S-waiting-on-authorStatus: This is awaiting some action (such as code changes or more information) from the author.Status: This is awaiting some action (such as code changes or more information) from the author.

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.

Status: Open (in progress).

rust-lang/rustnumber 130552

#130552 In rust-lang/rust;

· taiki-e opened on Sep 19, 2024

AtomicU128/AtomicI128 not shown in std docs on rust-lang.org

A-atomicArea: Atomics, barriers, and sync primitivesArea: Atomics, barriers, and sync primitives

A-docsArea: Documentation for any part of the project, including the compiler, standard library, and toolsArea: Documentation for any part of the project, including the compiler, standard library, and tools

A-target-featureArea: Enabling/disabling target features like AVX, Neon, etc.Area: Enabling/disabling target features like AVX, Neon, etc.

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.

#130474 In rust-lang/rust;

· programmerjake opened on Sep 17, 2024

<code>--emit metadata</code> produces less error messages with some targets

A-atomicArea: Atomics, barriers, and sync primitivesArea: Atomics, barriers, and sync primitives

A-metadataArea: Crate metadataArea: Crate metadata

A-testsuiteArea: The testsuite used to check the correctness of rustcArea: The testsuite used to check the correctness of rustc

C-bugCategory: This is a bug.Category: This is a bug.

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.

Status: Open.

#129315 In rust-lang/rust;

· japaric opened on Aug 20, 2024