Skip to content

Issues: rust-lang/rust

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Clear current search query, filters, and sorts
614 Open 1,143 Closed
614 Open 1,143 Closed
Author
Filter by author
Loading
Label
Filter by label
Loading
Use alt + click/return to exclude labels
or ⇧ + click/return for logical OR
Projects
Filter by project
Loading
Milestones
Filter by milestone
Loading
Assignee
Filter by who’s assigned
Sort
Sort by
Newest Oldest Most commented Least commented Recently updated Least recently updated Best match
Most reactions
👍 👎 😄 🎉 😕 ❤️ 🚀 👀

Issues list

Removing trailing zeros of a NonZero A-LLVM Area: Code generation parts specific to LLVM. Both correctness bugs and optimization-related issues. C-optimization Category: An issue highlighting optimization opportunities or PRs implementing such I-slow Issue: Problems and improvements with respect to performance of generated code.
#138497 opened Mar 14, 2025 by leonardo-m
3
Investigate why repr-128-dwarf doesn't fail in CI test jobs A-compiletest Area: The compiletest test runner A-debuginfo Area: Debugging information in compiled programs (DWARF, PDB, etc.) A-download-rustc Area: The `rust.download-rustc` build option. A-LLVM Area: Code generation parts specific to LLVM. Both correctness bugs and optimization-related issues. A-test-infra Area: test infrastructure (may span bootstrap/compiletest/more) C-bug Category: This is a bug. T-bootstrap Relevant to the bootstrap subteam: Rust's build system (x.py and src/bootstrap) T-infra Relevant to the infrastructure team, which will review and decide on the PR/issue.
#138334 opened Mar 11, 2025 by jieyouxu
5
LLVM IPSCCP doesn't respect optimize(none) A-LLVM Area: Code generation parts specific to LLVM. Both correctness bugs and optimization-related issues. C-bug Category: This is a bug. F-optimize_attribute `#![feature(optimize_attribute)]` T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#138272 opened Mar 9, 2025 by theemathas
1
ICE: codegenprepare pass segfaults A-LLVM Area: Code generation parts specific to LLVM. Both correctness bugs and optimization-related issues. C-bug Category: This is a bug. I-crash Issue: The compiler crashes (SIGSEGV, SIGABRT, etc). Use I-ICE instead when the compiler panics. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#138235 opened Mar 8, 2025 by thomasgassmann
1
iOS binaries crash with latest nightly A-LLVM Area: Code generation parts specific to LLVM. Both correctness bugs and optimization-related issues. C-bug Category: This is a bug. C-external-bug Category: issue that is caused by bugs in software beyond our control O-apple Operating system: Apple (macOS, iOS, tvOS, visionOS, watchOS) O-ios Operating system: iOS P-high High priority regression-from-stable-to-beta Performance or correctness regression from stable to beta. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#138212 opened Mar 8, 2025 by tdomhan
39
LLVM "conflicting locations for variable" assertions A-debuginfo Area: Debugging information in compiled programs (DWARF, PDB, etc.) A-LLVM Area: Code generation parts specific to LLVM. Both correctness bugs and optimization-related issues. E-needs-mcve Call for participation: This issue has a repro, but needs a Minimal Complete and Verifiable Example I-crash Issue: The compiler crashes (SIGSEGV, SIGABRT, etc). Use I-ICE instead when the compiler panics. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#138198 opened Mar 8, 2025 by jieyouxu
12
CI llvm related issue when trying to cross compile for Solaris A-cross Area: Cross compilation A-linkage Area: linking into static, shared libraries and binaries A-linkers Area: linkers... you gotta love linkers A-LLVM Area: Code generation parts specific to LLVM. Both correctness bugs and optimization-related issues. C-bug Category: This is a bug. E-needs-investigation Call for partcipation: This issues needs some investigation to determine current status O-solaris Operating system: Solaris T-bootstrap Relevant to the bootstrap subteam: Rust's build system (x.py and src/bootstrap)
#137997 opened Mar 4, 2025 by psumbera
4
llvm-20: Nightly compile time regression building comrak with release profile A-LLVM Area: Code generation parts specific to LLVM. Both correctness bugs and optimization-related issues. C-bug Category: This is a bug. I-compiletime Issue: Problems and improvements with respect to compile times. llvm-fixed-upstream Issue expected to be fixed by the next major LLVM upgrade, or backported fixes P-high High priority regression-from-stable-to-nightly Performance or correctness regression from stable to nightly.
#137909 opened Mar 3, 2025 by parasyte
@DianQK
6
LLVM nocapture attribute is used incorrectly A-codegen Area: Code generation A-LLVM Area: Code generation parts specific to LLVM. Both correctness bugs and optimization-related issues. C-bug Category: This is a bug. I-unsound Issue: A soundness hole (worst kind of bug), see: https://en.wikipedia.org/wiki/Soundness T-compiler Relevant to the compiler team, which will review and decide on the PR/issue. T-opsem Relevant to the opsem team
#137668 opened Feb 26, 2025 by tmiasko
1
10
extern_weak linkage on definition not rejected A-linkage Area: linking into static, shared libraries and binaries A-LLVM Area: Code generation parts specific to LLVM. Both correctness bugs and optimization-related issues. C-bug Category: This is a bug. F-linkage #![feature(linkage)]` I-crash Issue: The compiler crashes (SIGSEGV, SIGABRT, etc). Use I-ICE instead when the compiler panics.
#137627 opened Feb 25, 2025 by matthiaskrgr
2
Emit dereferenceable assumptions for slices A-codegen Area: Code generation A-LLVM Area: Code generation parts specific to LLVM. Both correctness bugs and optimization-related issues. C-bug Category: This is a bug. I-slow Issue: Problems and improvements with respect to performance of generated code. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#137568 opened Feb 24, 2025 by Kmeakin
1
With LLVM 20 the SIMD intrinsic wasm32::u8x16_sub_sat is compiled to a function call A-LLVM Area: Code generation parts specific to LLVM. Both correctness bugs and optimization-related issues. A-SIMD Area: SIMD (Single Instruction Multiple Data) C-bug Category: This is a bug. O-wasm Target: WASM (WebAssembly), http://webassembly.org/
#137419 opened Feb 22, 2025 by hkratz
1
2
Missed optimization: When debuginfo is on, is_power_of_two does not imply nonzero. A-debuginfo Area: Debugging information in compiled programs (DWARF, PDB, etc.) A-LLVM Area: Code generation parts specific to LLVM. Both correctness bugs and optimization-related issues. C-bug Category: This is a bug. C-optimization Category: An issue highlighting optimization opportunities or PRs implementing such T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#137359 opened Feb 21, 2025 by theemathas
2
Inefficient code generation with target-feature AVX2 A-codegen Area: Code generation A-LLVM Area: Code generation parts specific to LLVM. Both correctness bugs and optimization-related issues. A-target-feature Area: Enabling/disabling target features like AVX, Neon, etc. C-bug Category: This is a bug. I-slow Issue: Problems and improvements with respect to performance of generated code. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#137335 opened Feb 20, 2025 by LaurenzV
5
RISC-V intrinsics with one or more target features are not inlined A-LLVM Area: Code generation parts specific to LLVM. Both correctness bugs and optimization-related issues. C-bug Category: This is a bug. C-optimization Category: An issue highlighting optimization opportunities or PRs implementing such O-riscv Target: RISC-V architecture T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#137293 opened Feb 19, 2025 by brkydnc
8
Performance regression in 1.84 for inline-able function in closure A-LLVM Area: Code generation parts specific to LLVM. Both correctness bugs and optimization-related issues. C-bug Category: This is a bug. C-optimization Category: An issue highlighting optimization opportunities or PRs implementing such P-medium Medium priority regression-untriaged Untriaged performance or correctness regression. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#137273 opened Feb 19, 2025 by findepi
8
LLVM warnings emitted for Xtensa target-cpu A-LLVM Area: Code generation parts specific to LLVM. Both correctness bugs and optimization-related issues. A-target-feature Area: Enabling/disabling target features like AVX, Neon, etc. C-bug Category: This is a bug. O-xtensa T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#137150 opened Feb 16, 2025 by Noratrieb
@MabezDev
1
SIGILL trying to build bstr in a no_std environment A-LLVM Area: Code generation parts specific to LLVM. Both correctness bugs and optimization-related issues. C-bug Category: This is a bug. I-crash Issue: The compiler crashes (SIGSEGV, SIGABRT, etc). Use I-ICE instead when the compiler panics. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#137138 opened Feb 16, 2025 by ObserverUnit
3
cg_llvm: Replace some DIBuilder wrappers with LLVM-C API bindings (part 2) A-LLVM Area: Code generation parts specific to LLVM. Both correctness bugs and optimization-related issues. 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.
#136632 opened Feb 6, 2025 by Zalathar Loading…
@workingjubilee
15
x86 softfloat target: no way to get LLVM to make local use of the FPU or SIMD registers A-floating-point Area: Floating point numbers and arithmetic A-LLVM Area: Code generation parts specific to LLVM. Both correctness bugs and optimization-related issues. A-SIMD Area: SIMD (Single Instruction Multiple Data) C-bug Category: This is a bug. C-external-bug Category: issue that is caused by bugs in software beyond our control T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#136540 opened Feb 4, 2025 by RalfJung
7
Byte count has poor codegen with autovectorization A-autovectorization Area: Autovectorization, which can impact perf or code size A-LLVM Area: Code generation parts specific to LLVM. Both correctness bugs and optimization-related issues. C-optimization Category: An issue highlighting optimization opportunities or PRs implementing such T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#136500 opened Feb 3, 2025 by danielhuang
Change rint to roundeven in round_ties_even implementation A-floating-point Area: Floating point numbers and arithmetic A-LLVM Area: Code generation parts specific to LLVM. Both correctness bugs and optimization-related issues. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#136459 opened Feb 3, 2025 by tgross35
15
Empty RangeInclusive for loop optimizes worse than using Range A-codegen Area: Code generation A-LLVM Area: Code generation parts specific to LLVM. Both correctness bugs and optimization-related issues. C-optimization Category: An issue highlighting optimization opportunities or PRs implementing such I-slow Issue: Problems and improvements with respect to performance of generated code. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#136423 opened Feb 2, 2025 by Sky9x
1
warning: [email protected]: Inherited flag "-flto=thin" is not supported by the currently used CC A-LLVM Area: Code generation parts specific to LLVM. Both correctness bugs and optimization-related issues. C-bug Category: This is a bug. T-bootstrap Relevant to the bootstrap subteam: Rust's build system (x.py and src/bootstrap)
#136338 opened Jan 31, 2025 by Zeckmathederg
1
@jieyouxu
6
rustc unexpectedly overflowed its stack! this is a bug A-LLVM Area: Code generation parts specific to LLVM. Both correctness bugs and optimization-related issues. C-bug Category: This is a bug. E-needs-mcve Call for participation: This issue has a repro, but needs a Minimal Complete and Verifiable Example I-crash Issue: The compiler crashes (SIGSEGV, SIGABRT, etc). Use I-ICE instead when the compiler panics.
#136282 opened Jan 30, 2025 by Julianzs
7
ProTip! What’s not been updated in a month: updated:<2025-02-14.