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Allow linking a prebuilt optimized compiler-rt builtins library

A-compiler-builtinsArea: compiler-builtins (https://github.com/rust-lang/compiler-builtins)Area: compiler-builtins (https://github.com/rust-lang/compiler-builtins)

S-waiting-on-reviewStatus: Awaiting review from the assignee but also interested parties.Status: Awaiting review from the assignee but also interested parties.

T-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 (in progress).

rust-lang/rustnumber 143689

#143689 In rust-lang/rust;

· pmur opened on Jul 9, 2025

compiler-builtins: Clean up features

A-compiler-builtinsArea: compiler-builtins (https://github.com/rust-lang/compiler-builtins)Area: compiler-builtins (https://github.com/rust-lang/compiler-builtins)

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: Draft (not ready).

rust-lang/rustnumber 142659

#142659 In rust-lang/rust;

· tgross35 opened on Jun 18, 2025

Remove crates.io <code>compiler-builtins</code> from the library workspace

A-compiler-builtinsArea: compiler-builtins (https://github.com/rust-lang/compiler-builtins)Area: compiler-builtins (https://github.com/rust-lang/compiler-builtins)

C-cleanupCategory: PRs that clean code up or issues documenting cleanup.Category: PRs that clean code up or issues documenting cleanup.

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.

#142265 In rust-lang/rust;

· tgross35 opened on Jun 9, 2025

Linking a Rust staticlib unexpectedly changes C math functions from libm to bundled ones from compiler-builtins

A-compiler-builtinsArea: compiler-builtins (https://github.com/rust-lang/compiler-builtins)Area: compiler-builtins (https://github.com/rust-lang/compiler-builtins)

A-linkageArea: linking into static, shared libraries and binariesArea: linking into static, shared libraries and binaries

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

P-mediumMedium priorityMedium priority

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.

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.

#142119 In rust-lang/rust;

· durin42 opened on Jun 6, 2025