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Rollup of 6 pull requests

A-attributesArea: Attributes (`#[…]`, `#![…]`)Area: Attributes (`#[…]`, `#![…]`)

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.

A-rustc-dev-guideArea: rustc-dev-guideArea: rustc-dev-guide

A-rustdoc-jsonArea: Rustdoc JSON backendArea: Rustdoc JSON backend

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

A-tidyArea: The tidy toolArea: The tidy tool

rollupA PR which is a rollupA PR which is a rollup

S-waiting-on-borsStatus: Waiting on bors to run and complete tests. Bors will change the label on completion.Status: Waiting on bors to run and complete tests. Bors will change the label on completion.

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)

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-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.

T-releaseRelevant to the release subteam, which will review and decide on the PR/issue.Relevant to the release subteam, which will review and decide on the PR/issue.

T-rustdocRelevant to the rustdoc team, which will review and decide on the PR/issue.Relevant to the rustdoc team, which will review and decide on the PR/issue.

T-rustdoc-frontendRelevant to the rustdoc-frontend team, which will review and decide on the web UI/UX output.Relevant to the rustdoc-frontend team, which will review and decide on the web UI/UX output.

Status: Open (in progress).

rust-lang/rustnumber 142895

#142895 In rust-lang/rust;

· jhpratt opened on Jun 22, 2025

Remove dead instructions in terminate blocks

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.

S-waiting-on-perfStatus: Waiting on a perf run to be completed.Status: Waiting on a perf run to be completed.

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: Draft (not ready).

rust-lang/rustnumber 142879

#142879 In rust-lang/rust;

· Mark-Simulacrum opened on Jun 22, 2025

centralize <code>-Zmin-function-alignment</code> logic

A-attributesArea: Attributes (`#[…]`, `#![…]`)Area: Attributes (`#[…]`, `#![…]`)

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.

S-waiting-on-borsStatus: Waiting on bors to run and complete tests. Bors will change the label on completion.Status: Waiting on bors to run and complete tests. Bors will change the label on completion.

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 142854

#142854 In rust-lang/rust;

· folkertdev opened on Jun 21, 2025

Stabilize <code>-Cmin-function-alignment</code>

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.

needs-fcpThis change is insta-stable, or significant enough to need a team FCP to proceed.This change is insta-stable, or significant enough to need a team FCP to proceed.

S-waiting-on-documentationStatus: Waiting on approved PRs to documentation before mergingStatus: Waiting on approved PRs to documentation before merging

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

S-waiting-on-teamStatus: Awaiting decision from the relevant subteam (see the T-<team> label).Status: Awaiting decision from the relevant subteam (see the T-<team> label).

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-langRelevant to the language teamRelevant to the language team

Status: Open (in progress).

rust-lang/rustnumber 142824

#142824 In rust-lang/rust;

· folkertdev opened on Jun 21, 2025

Add PrintTAFn flag for targeted type analysis printing

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.

A-rustc-dev-guideArea: rustc-dev-guideArea: rustc-dev-guide

F-autodiff`#![feature(autodiff)]``#![feature(autodiff)]`

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

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 142809

#142809 In rust-lang/rust;

· KMJ-007 opened on Jun 20, 2025

Make TypeId const comparable

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.

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

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 (in progress).

rust-lang/rustnumber 142789

#142789 In rust-lang/rust;

· oli-obk opened on Jun 20, 2025

Introduce debuginfo to statements in MIR

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.

perf-regressionPerformance regression.Performance regression.

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: Draft (not ready).

rust-lang/rustnumber 142771

#142771 In rust-lang/rust;

· dianqk opened on Jun 20, 2025

Linux release builds fail with undefined symbol errors on rust 1.87

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

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.

A-LTOArea: Link-time optimization (LTO)Area: Link-time optimization (LTO)

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

E-needs-mcveCall for participation: This issue has a repro, but needs a Minimal Complete and Verifiable ExampleCall for participation: This issue has a repro, but needs a Minimal Complete and Verifiable Example

I-prioritizeIssue: Indicates that prioritization has been requested for this issue.Issue: Indicates that prioritization has been requested for this issue.

regression-from-stable-to-stablePerformance or correctness regression from one stable version to another.Performance or correctness regression from one stable version to another.

regression-untriagedUntriaged performance or correctness regression.Untriaged performance or correctness regression.

Status: Open.

#142752 In rust-lang/rust;

· nathanwhit opened on Jun 19, 2025

Missed optimization: comparing array to zero is not vectorized

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.

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

I-slowIssue: Problems and improvements with respect to performance of generated code.Issue: Problems and improvements with respect to performance of generated code.

Status: Open.

#142710 In rust-lang/rust;

· theemathas opened on Jun 19, 2025

Offload device1

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.

F-autodiff`#![feature(autodiff)]``#![feature(autodiff)]`

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: Draft (not ready).

rust-lang/rustnumber 142696

#142696 In rust-lang/rust;

· ZuseZ4 opened on Jun 18, 2025

Implement autodiff using intrinsics

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.

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: Draft (not ready).

rust-lang/rustnumber 142640

#142640 In rust-lang/rust;

· Sa4dUs opened on Jun 17, 2025

Function no longer auto-vectorizes in 1.87.0

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

I-slowIssue: Problems and improvements with respect to performance of generated code.Issue: Problems and improvements with respect to performance of generated code.

P-highHigh priorityHigh 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.

Status: Open.

#142519 In rust-lang/rust;

· fintelia opened on Jun 14, 2025