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Issues list

Add kl and widekl target features, and the feature gate A-target-feature Area: Enabling/disabling target features like AVX, Neon, etc. O-x86_32 Target: x86 processors, 32 bit (like i686-*) O-x86_64 Target: x86-64 processors (like x86_64-*) 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.
#134814 opened Dec 27, 2024 by sayantn Loading…
@fmease
5
SIGSEGV/SIGILL while building rustc itself in x86_64 apple CI jobs A-spurious Area: Spurious failures in builds (spuriously == for no apparent reason) C-bug Category: This is a bug. CI-spurious-x86_64-apple-SIGSEGV-SIGILL CI spurious failure: SIGSEGV/SIGILL while building rustc itself on x86_64-apple I-crash Issue: The compiler crashes (SIGSEGV, SIGABRT, etc). Use I-ICE instead when the compiler panics. O-apple Operating system: Apple (macOS, iOS, tvOS, visionOS, watchOS) O-x86_64 Target: x86-64 processors (like x86_64-*) S-needs-repro Status: This issue has no reproduction and needs a reproduction to make progress. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#134220 opened Dec 12, 2024 by jieyouxu
6
"rustc-LLVM ERROR" when using _mm_cvttps_epi32 on x86_64-unknown-none A-target-feature Area: Enabling/disabling target features like AVX, Neon, etc. C-bug Category: This is a bug. O-x86_64 Target: x86-64 processors (like x86_64-*) T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#133707 opened Dec 1, 2024 by eduardosm
2
Forbid disabling SSE on x86 targets that have SSE in their "baseline" A-target-feature Area: Enabling/disabling target features like AVX, Neon, etc. C-discussion Category: Discussion or questions that doesn't represent real issues. O-x86_32 Target: x86 processors, 32 bit (like i686-*) O-x86_64 Target: x86-64 processors (like x86_64-*) T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#133611 opened Nov 29, 2024 by RalfJung
1
1
How should we handle matrix ABIs? A-ABI Area: Concerning the application binary interface (ABI) E-needs-investigation Call for partcipation: This issues needs some investigation to determine current status O-AArch64 Armv8-A or later processors in AArch64 mode O-PowerPC Target: PowerPC processors O-x86_64 Target: x86-64 processors (like x86_64-*) T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#133144 opened Nov 17, 2024 by workingjubilee
5
All interrupt ABIs should enforce either () or ! as return types A-ABI Area: Concerning the application binary interface (ABI) A-hardware-interrupts Area: Code for handling the "interrupt ABI" of various processors A-LLVM Area: Code generation parts specific to LLVM. Both correctness bugs and optimization-related issues. C-bug Category: This is a bug. F-abi_x86_interrupt O-msp430 O-riscv Target: RISC-V architecture O-x86_32 Target: x86 processors, 32 bit (like i686-*) O-x86_64 Target: x86-64 processors (like x86_64-*) T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#132841 opened Nov 10, 2024 by workingjubilee
extern "x86-interrupt" fn allows absurd signatures A-ABI Area: Concerning the application binary interface (ABI) A-hardware-interrupts Area: Code for handling the "interrupt ABI" of various processors A-LLVM Area: Code generation parts specific to LLVM. Both correctness bugs and optimization-related issues. C-bug Category: This is a bug. F-abi_x86_interrupt O-x86_32 Target: x86 processors, 32 bit (like i686-*) O-x86_64 Target: x86-64 processors (like x86_64-*) T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#132835 opened Nov 10, 2024 by workingjubilee
Directly calling "x86-interrupt" fn should be invalid A-ABI Area: Concerning the application binary interface (ABI) A-hardware-interrupts Area: Code for handling the "interrupt ABI" of various processors A-LLVM Area: Code generation parts specific to LLVM. Both correctness bugs and optimization-related issues. C-bug Category: This is a bug. F-abi_x86_interrupt O-x86_32 Target: x86 processors, 32 bit (like i686-*) O-x86_64 Target: x86-64 processors (like x86_64-*) T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#132834 opened Nov 10, 2024 by workingjubilee
False error: unknown x86 target feature: avx2 when passed to is_x86_feature_detected! as a literal instead of tt. A-target-feature Area: Enabling/disabling target features like AVX, Neon, etc. C-bug Category: This is a bug. O-x86_64 Target: x86-64 processors (like x86_64-*) 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.
#128586 opened Aug 3, 2024 by vcfxb
Tracking Issue for bf16 type in stdarch avx512 C-tracking-issue Category: An issue tracking the progress of sth. like the implementation of an RFC O-x86_32 Target: x86 processors, 32 bit (like i686-*) O-x86_64 Target: x86-64 processors (like x86_64-*) T-libs-api Relevant to the library API team, which will review and decide on the PR/issue.
#127356 opened Jul 5, 2024 by sayantn
2 tasks
Tracking Issue for AVX512_FP16 intrinsics A-SIMD Area: SIMD (Single Instruction Multiple Data) C-tracking-issue Category: An issue tracking the progress of sth. like the implementation of an RFC O-x86_32 Target: x86 processors, 32 bit (like i686-*) O-x86_64 Target: x86-64 processors (like x86_64-*) T-libs-api Relevant to the library API team, which will review and decide on the PR/issue.
#127213 opened Jul 1, 2024 by sayantn
2 tasks
Tracking Issue for XOP target feature A-SIMD Area: SIMD (Single Instruction Multiple Data) A-target-feature Area: Enabling/disabling target features like AVX, Neon, etc. C-tracking-issue Category: An issue tracking the progress of sth. like the implementation of an RFC O-x86_32 Target: x86 processors, 32 bit (like i686-*) O-x86_64 Target: x86-64 processors (like x86_64-*)
#127208 opened Jul 1, 2024 by sayantn
1 of 3 tasks
2
build-std + link-dead-code=y cannot build custom target without sse -Zbuild-std Unstable Cargo option: Compile the standard library yourself. A-LLVM Area: Code generation parts specific to LLVM. Both correctness bugs and optimization-related issues. C-bug Category: This is a bug. O-x86_64 Target: x86-64 processors (like x86_64-*) requires-nightly This issue requires a nightly compiler in some way.
#123494 opened Apr 5, 2024 by jzbor
5
Indexing with bool generates suboptimal assembly A-codegen Area: Code generation 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. O-x86_64 Target: x86-64 processors (like x86_64-*) S-has-mcve Status: A Minimal Complete and Verifiable Example has been found for this issue
#122121 opened Mar 7, 2024 by alion02
4
SEE-AVX-stall when using target-cpu=znver2. Thus ~25 times slower. A-codegen Area: Code generation A-LLVM Area: Code generation parts specific to LLVM. Both correctness bugs and optimization-related issues. I-slow Issue: Problems and improvements with respect to performance of generated code. O-x86_64 Target: x86-64 processors (like x86_64-*) T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#120108 opened Jan 18, 2024 by Barfussmann
5
x86-64 assembler silently truncates 64-bit address A-inline-assembly Area: Inline assembly (`asm!(…)`) A-LLVM Area: Code generation parts specific to LLVM. Both correctness bugs and optimization-related issues. C-bug Category: This is a bug. I-miscompile Issue: Correct Rust code lowers to incorrect machine code I-unsound Issue: A soundness hole (worst kind of bug), see: https://en.wikipedia.org/wiki/Soundness O-x86_64 Target: x86-64 processors (like x86_64-*) P-high High priority T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#118223 opened Nov 24, 2023 by MauriceKayser
3
Suspected X64 exception handler IP to state map off-by-one error A-codegen Area: Code generation A-LLVM Area: Code generation parts specific to LLVM. Both correctness bugs and optimization-related issues. A-panic Area: Panicking machinery C-bug Category: This is a bug. I-unsound Issue: A soundness hole (worst kind of bug), see: https://en.wikipedia.org/wiki/Soundness O-windows Operating system: Windows O-x86_64 Target: x86-64 processors (like x86_64-*) P-medium Medium priority
#117725 opened Nov 8, 2023 by rveldhoven
3
Cannot compile under Rosetta 2 on Macos C-bug Category: This is a bug. I-crash Issue: The compiler crashes (SIGSEGV, SIGABRT, etc). Use I-ICE instead when the compiler panics. O-AArch64 Armv8-A or later processors in AArch64 mode O-macos Operating system: macOS O-x86_64 Target: x86-64 processors (like x86_64-*) T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#116512 opened Oct 7, 2023 by lukaso
4
Compiler emits inappropriate SSE2 instructions for f64 math A-codegen Area: Code generation 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. C-bug Category: This is a bug. I-slow Issue: Problems and improvements with respect to performance of generated code. O-x86_64 Target: x86-64 processors (like x86_64-*) T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#116359 opened Oct 2, 2023 by HEnquist
4
StackOverflow error when assert fails or panic when compiling to Android A-cross Area: Cross compilation A-FFI Area: Foreign function interface (FFI) A-panic Area: Panicking machinery C-bug Category: This is a bug. O-android Operating system: Android O-unix Operating system: Unix-like O-x86_64 Target: x86-64 processors (like x86_64-*) T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#116309 opened Oct 1, 2023 by matan-h
Rust fails to build cross target libraries when building on M1 Mac A-cross Area: Cross compilation C-bug Category: This is a bug. O-AArch64 Armv8-A or later processors in AArch64 mode O-macos Operating system: macOS O-x86_64 Target: x86-64 processors (like x86_64-*) T-bootstrap Relevant to the bootstrap subteam: Rust's build system (x.py and src/bootstrap)
#115679 opened Sep 8, 2023 by athei
Codegen emits ineffective vxorps/vaddps sequences 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-heavy Issue: Problems and improvements with respect to binary size of generated code. I-slow Issue: Problems and improvements with respect to performance of generated code. O-x86_32 Target: x86 processors, 32 bit (like i686-*) O-x86_64 Target: x86-64 processors (like x86_64-*)
#114033 opened Jul 24, 2023 by ksf
3
Tracking Issue for _MM_SHUFFLE C-tracking-issue Category: An issue tracking the progress of sth. like the implementation of an RFC O-x86_32 Target: x86 processors, 32 bit (like i686-*) O-x86_64 Target: x86-64 processors (like x86_64-*) T-libs-api Relevant to the library API team, which will review and decide on the PR/issue.
#111147 opened May 3, 2023 by Amanieu
3 tasks
1
Tracking Issue for Intel Restricted Transactional Memory intrinsics C-tracking-issue Category: An issue tracking the progress of sth. like the implementation of an RFC O-x86_32 Target: x86 processors, 32 bit (like i686-*) O-x86_64 Target: x86-64 processors (like x86_64-*) T-libs-api Relevant to the library API team, which will review and decide on the PR/issue.
#111138 opened May 3, 2023 by Amanieu
2 tasks
1
Tracking Issue for AVX512 intrinsics C-tracking-issue Category: An issue tracking the progress of sth. like the implementation of an RFC O-x86_32 Target: x86 processors, 32 bit (like i686-*) O-x86_64 Target: x86-64 processors (like x86_64-*) T-libs-api Relevant to the library API team, which will review and decide on the PR/issue.
#111137 opened May 3, 2023 by Amanieu
2 tasks
28
ProTip! Updated in the last three days: updated:>2025-01-14.