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shared-generics: Do not share instantiations that contain local-only types
perf-regression
Performance regression.
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.
#138522
opened Mar 14, 2025 by
osiewicz
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expand: Leave traces when expanding Area: Attributes (`#[…]`, `#![…]`)
perf-regression
Performance regression.
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.
cfg_attr
attributes
A-attributes
#138515
opened Mar 14, 2025 by
petrochenkov
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Nul terminate rust string literals
perf-regression
Performance regression.
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.
Avoid wrapping constant allocations in packed structs when not necessary
perf-regression
Performance regression.
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.
#138503
opened Mar 14, 2025 by
bjorn3
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Test out a more lock-free hash map
A-query-system
Area: The rustc query system (https://rustc-dev-guide.rust-lang.org/query.html)
perf-regression
Performance regression.
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.
Tweak Performance regression.
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.
VecCache
to improve performance
perf-regression
#138405
opened Mar 12, 2025 by
Zoxc
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Deduce readonly attribute for !Freeze arguments
perf-regression
Performance regression.
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.
Use multiple returns in MIR if it saves a block; still have only one in LLVM
perf-regression
Performance regression.
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.
Ensure constants are WF before calling into CTFE
perf-regression
Performance regression.
PG-exploit-mitigations
Project group: Exploit mitigations
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.
WG-trait-system-refactor
The Rustc Trait System Refactor Initiative (-Znext-solver)
Sized Hierarchy
A-attributes
Area: Attributes (`#[…]`, `#![…]`)
A-run-make
Area: port run-make Makefiles to rmake.rs
A-rustdoc-json
Area: Rustdoc JSON backend
A-rustdoc-search
Area: Rustdoc's search feature
perf-regression
Performance regression.
PG-exploit-mitigations
Project group: Exploit mitigations
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-compiler
Relevant to the compiler team, which will review and decide on the PR/issue.
T-lang
Relevant to the language 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.
T-rustdoc
Relevant to the rustdoc team, which will review and decide on the PR/issue.
T-rustdoc-frontend
Relevant to the rustdoc-frontend team, which will review and decide on the web UI/UX output.
WG-trait-system-refactor
The Rustc Trait System Refactor Initiative (-Znext-solver)
#137944
opened Mar 3, 2025 by
davidtwco
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Reserve before Performance regression.
S-waiting-on-review
Status: Awaiting review from the assignee but also interested parties.
T-libs
Relevant to the library team, which will review and decide on the PR/issue.
write_fmt
for owned buffers
perf-regression
#137762
opened Feb 28, 2025 by
thaliaarchi
•
Draft
Experiment: New format_args!() representation
A-fmt
Area: `core::fmt`
perf-regression
Performance regression.
S-experimental
Status: Ongoing experiment that does not require reviewing and won't be merged in its current state.
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-libs
Relevant to the library team, which will review and decide on the PR/issue.
Stabilize query cache size by fixing encoding order of some query results
A-query-system
Area: The rustc query system (https://rustc-dev-guide.rust-lang.org/query.html)
perf-regression
Performance regression.
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.
Use Peekable in lexer_unescape
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.
[experiment] dont init anything except x86
perf-regression
Performance regression.
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.
#136861
opened Feb 11, 2025 by
klensy
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GCI: At their def site, actually wfcheck the where-clause & always eval free lifetime-generic constants
F-generic_const_items
`#![feature(generic_const_items)]`
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.
Remove InstanceKind::generates_cgu_internal_copy
perf-regression
Performance regression.
perf-regression-triaged
The performance regression has been triaged.
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.
#136410
opened Feb 1, 2025 by
saethlin
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Lazy-chunk Symbol interner
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.
#136401
opened Feb 1, 2025 by
Mark-Simulacrum
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[DO NOT MERGE] perf run for rustc-hash candidate (folded multiply)
A-rustdoc-json
Area: Rustdoc JSON backend
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-compiler
Relevant to the compiler team, which will review and decide on the PR/issue.
T-rustdoc
Relevant to the rustdoc team, which will review and decide on the PR/issue.
#136095
opened Jan 26, 2025 by
orlp
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stop specializing on 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.
T-libs
Relevant to the library team, which will review and decide on the PR/issue.
T-libs-api
Relevant to the library API team, which will review and decide on the PR/issue.
Copy
perf-regression
#135634
opened Jan 17, 2025 by
joboet
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Include arguments to the precondition check in failure messages
perf-regression
Performance regression.
S-experimental
Status: Ongoing experiment that does not require reviewing and won't be merged in its current state.
T-libs
Relevant to the library team, which will review and decide on the PR/issue.
Do partial SsaLocals analysis in unoptimized builds
A-run-make
Area: port run-make Makefiles to rmake.rs
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.
Lower BinOp::Cmp to llvm.{s,u}cmp.* intrinsics
perf-regression
Performance regression.
S-blocked
Status: Blocked on something else such as an RFC or other implementation work.
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.
#133984
opened Dec 6, 2024 by
DaniPopes
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Consider fields to be inhabited if they are unstable
disposition-merge
This issue / PR is in PFCP or FCP with a disposition to merge it.
finished-final-comment-period
The final comment period is finished for this PR / Issue.
I-lang-easy-decision
Issue: The decision needed by the team is conjectured to be easy; this does not imply nomination
perf-regression
Performance regression.
S-waiting-on-review
Status: Awaiting review from the assignee but also interested parties.
T-lang
Relevant to the language team, which will review and decide on the PR/issue.
#133889
opened Dec 5, 2024 by
compiler-errors
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Use Performance regression.
S-blocked
Status: Blocked on something else such as an RFC or other implementation work.
T-libs
Relevant to the library team, which will review and decide on the PR/issue.
iter::repeat_n
to implement Vec::extend_with
perf-regression
#133662
opened Nov 30, 2024 by
paolobarbolini
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