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Pull requests list

Perform DestinationPropagation on places. perf-regression Performance regression. S-waiting-on-author Status: This is awaiting some action (such as code changes or more information) from the author. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#147614 opened Oct 12, 2025 by cjgillot Draft
Implement RFC 3349, mixed utf8 literals A-testsuite Area: The testsuite used to check the correctness of rustc perf-regression Performance regression. perf-regression-triaged The performance regression has been triaged. T-bootstrap Relevant to the bootstrap subteam: Rust's build system (x.py and src/bootstrap) T-compiler Relevant to the compiler team, which will review and decide on the PR/issue. T-lang Relevant to the language team
#120286 opened Jan 23, 2024 by nnethercote Draft
[perf only] Reimplement references debuginfo as projection. A-mir-opt Area: MIR optimizations perf-regression Performance regression. S-experimental Status: Ongoing experiment that does not require reviewing and won't be merged in its current state. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#119471 opened Dec 31, 2023 by cjgillot Draft
CI: move dist-arm-linux to a free ARM runner A-testsuite Area: The testsuite used to check the correctness of rustc S-waiting-on-author Status: This is awaiting some action (such as code changes or more information) from the author. T-infra Relevant to the infrastructure team, which will review and decide on the PR/issue.
#135774 opened Jan 20, 2025 by marcoieni Draft
1 task
crater: check impact of ignoring outlived regions in alias liveness S-waiting-on-author Status: This is awaiting some action (such as code changes or more information) from the author. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue. T-rust-analyzer Relevant to the rust-analyzer team, which will review and decide on the PR/issue.
#147154 opened Sep 29, 2025 by lqd Draft
Omit suggestions when spans are invalid A-compiletest Area: The compiletest test runner A-testsuite Area: The testsuite used to check the correctness of rustc S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. T-bootstrap Relevant to the bootstrap subteam: Rust's build system (x.py and src/bootstrap) T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#147849 opened Oct 18, 2025 by jdonszelmann Loading…
Fix Windows bootstrap panic on invalid symlink removal (issue #143045) O-windows Operating system: Windows S-waiting-on-author Status: This is awaiting some action (such as code changes or more information) from the author. T-bootstrap Relevant to the bootstrap subteam: Rust's build system (x.py and src/bootstrap)
#143052 opened Jun 26, 2025 by hasip-timurtas Loading…
Use ExtractIf in fulfillment loop perf-regression Performance regression. S-waiting-on-author Status: This is awaiting some action (such as code changes or more information) from the author. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue. WG-trait-system-refactor The Rustc Trait System Refactor Initiative (-Znext-solver)
#144699 opened Jul 30, 2025 by compiler-errors Draft
Make inliner cycle detection a fallible process perf-regression Performance regression. S-waiting-on-author Status: This is awaiting some action (such as code changes or more information) from the author. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#147361 opened Oct 5, 2025 by saethlin Draft
Make inline suggestions no longer be the default S-experimental Status: Ongoing experiment that does not require reviewing and won't be merged in its current state. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#127282 opened Jul 3, 2024 by estebank Draft
coverage: Don't show coverage for code paths that must panic/diverge A-code-coverage Area: Source-based code coverage (-Cinstrument-coverage) S-experimental Status: Ongoing experiment that does not require reviewing and won't be merged in its current state. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#120013 opened Jan 16, 2024 by Zalathar Draft
[Experiment] Build the standard library with -Csymbol-mangling-version=v0 perf-regression Performance regression. S-experimental Status: Ongoing experiment that does not require reviewing and won't be merged in its current state. T-bootstrap Relevant to the bootstrap subteam: Rust's build system (x.py and src/bootstrap)
#142257 opened Jun 9, 2025 by wesleywiser Loading…
Cache MIR preorder traversal. perf-regression Performance regression. S-waiting-on-author Status: This is awaiting some action (such as code changes or more information) from the author. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#142578 opened Jun 16, 2025 by cjgillot Draft
[experimental, do not merge!] a faster implementation of Polonius and a more compact DenseBitSet implementation A-compiletest Area: The compiletest test runner A-testsuite Area: The testsuite used to check the correctness of rustc perf-regression Performance regression. S-experimental Status: Ongoing experiment that does not require reviewing and won't be merged in its current state. T-bootstrap Relevant to the bootstrap subteam: Rust's build system (x.py and src/bootstrap) T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#141583 opened May 26, 2025 by tage64 Draft
Split marking and visit to compute live_symbols. perf-regression Performance regression. S-experimental Status: Ongoing experiment that does not require reviewing and won't be merged in its current state. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#114538 opened Aug 6, 2023 by cjgillot Draft
Replace JSONPath with jq in jsondocck A-compiletest Area: The compiletest test runner A-rustdoc-json Area: Rustdoc JSON backend A-testsuite Area: The testsuite used to check the correctness of rustc S-waiting-on-author Status: This is awaiting some action (such as code changes or more information) from the author. T-bootstrap Relevant to the bootstrap subteam: Rust's build system (x.py and src/bootstrap) T-rustdoc Relevant to the rustdoc team, which will review and decide on the PR/issue.
#143089 opened Jun 27, 2025 by fluiderson Draft
[experimental, do not merge!] a faster implementation of Polonius A-compiletest Area: The compiletest test runner A-testsuite Area: The testsuite used to check the correctness of rustc perf-regression Performance regression. S-experimental Status: Ongoing experiment that does not require reviewing and won't be merged in its current state. T-bootstrap Relevant to the bootstrap subteam: Rust's build system (x.py and src/bootstrap) T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#141326 opened May 21, 2025 by tage64 Draft
crater experiment: do not promote function calls in const/static items S-waiting-on-crater Status: Waiting on a crater run to be completed. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#148952 opened Nov 14, 2025 by RalfJung Draft
Replace SingleUseConsts by GVN. perf-regression Performance regression. S-waiting-on-author Status: This is awaiting some action (such as code changes or more information) from the author. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#147079 opened Sep 26, 2025 by cjgillot Draft
compiler: Stop manually extending the stack A-query-system Area: The rustc query system (https://rustc-dev-guide.rust-lang.org/query.html) S-experimental Status: Ongoing experiment that does not require reviewing and won't be merged in its current state. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue. WG-trait-system-refactor The Rustc Trait System Refactor Initiative (-Znext-solver)
#134153 opened Dec 10, 2024 by workingjubilee Draft
[crater] Add impl From<f16> for f32 S-experimental Status: Ongoing experiment that does not require reviewing and won't be merged in its current state. S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue. T-libs Relevant to the library team, which will review and decide on the PR/issue.
#142723 opened Jun 19, 2025 by beetrees Draft
Fixup if T::CONST in MIR perf-regression Performance regression. S-experimental Status: Ongoing experiment that does not require reviewing and won't be merged in its current state. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#123259 opened Mar 31, 2024 by scottmcm Draft
[WIP] rustdoc (base+json): add support for variances A-rustdoc-json Area: Rustdoc JSON backend perf-regression Performance regression. S-waiting-on-author Status: This is awaiting some action (such as code changes or more information) from the author. T-rustdoc Relevant to the rustdoc team, which will review and decide on the PR/issue.
#123219 opened Mar 30, 2024 by fmease Draft
Optimize core::str::Lines::count perf-regression Performance regression. S-waiting-on-author Status: This is awaiting some action (such as code changes or more information) from the author. T-libs Relevant to the library team, which will review and decide on the PR/issue.
#123606 opened Apr 7, 2024 by thomcc Draft
2 of 3 tasks
[EXPERIMENT] Test 8-bit tags for hashbrown A-tidy Area: The tidy tool perf-regression Performance regression. S-waiting-on-author Status: This is awaiting some action (such as code changes or more information) from the author. T-bootstrap Relevant to the bootstrap subteam: Rust's build system (x.py and src/bootstrap) T-libs Relevant to the library team, which will review and decide on the PR/issue.
#146909 opened Sep 22, 2025 by Amanieu Draft
ProTip! no:milestone will show everything without a milestone.