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Issues list

How should we handle dynamic vector ABIs? A-ABI Area: Concerning the application binary interface (ABI) A-SIMD Area: SIMD (Single Instruction Multiple Data) E-needs-design This issue needs exploration and design to see how and if we can fix/implement it O-AArch64 Armv8-A or later processors in AArch64 mode O-riscv Target: RISC-V architecture T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#133146 opened Nov 17, 2024 by workingjubilee
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
3
Build failure with llvm 19 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. 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 requires-custom-config This issue requires custom config/build for rustc in some way T-bootstrap Relevant to the bootstrap subteam: Rust's build system (x.py and src/bootstrap)
#132896 opened Nov 11, 2024 by blackcross86
3
Tracking issue for release notes of #131781: Stabilize Arm64EC inline assembly A-inline-assembly Area: Inline assembly (`asm!(…)`) O-AArch64 Armv8-A or later processors in AArch64 mode O-windows Operating system: Windows relnotes Marks issues that should be documented in the release notes of the next release. relnotes-tracking-issue Marks issues tracking what text to put in release notes. T-lang Relevant to the language team, which will review and decide on the PR/issue.
#132813 opened Nov 9, 2024 by rustbot
3 tasks
1.84.0
thread_local! initialization code panics on some aarch64-apple-darwin envs, works on others A-thread-locals Area: Thread local storage (TLS) C-bug Category: This is a bug. 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-macos Operating system: macOS T-libs Relevant to the library team, which will review and decide on the PR/issue.
#132704 opened Nov 6, 2024 by dj8yfo
16
assembler label '' cannot be undefined on Windows ARM A-inline-assembly Area: Inline assembly (`asm!(…)`) 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 O-AArch64 Armv8-A or later processors in AArch64 mode O-windows Operating system: Windows T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#132287 opened Oct 28, 2024 by NicholasLYang
Volatile reads and writes on aarch64 sometimes generate instructions not suitable for MMIO in protected VMs 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. O-AArch64 Armv8-A or later processors in AArch64 mode S-has-mcve Status: A Minimal Complete and Verifiable Example has been found for this issue T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#131894 opened Oct 18, 2024 by qwandor
10
-Crelocation-model=rwpi (and possibly others) are unsound due to affecting the ABI I-unsound Issue: A soundness hole (worst kind of bug), see: https://en.wikipedia.org/wiki/Soundness O-AArch64 Armv8-A or later processors in AArch64 mode O-Arm Target: 32-bit Arm processors (armv6, armv7, thumb...), including 64-bit Arm in AArch32 state P-medium Medium priority
#131300 opened Oct 5, 2024 by RalfJung
4
target_arch is wrong in arm64ec-pc-windows-msvc C-bug Category: This is a bug. O-AArch64 Armv8-A or later processors in AArch64 mode O-windows Operating system: Windows T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#131172 opened Oct 2, 2024 by madsmtm
6
Apple arm64e targets fail to link with newer Xcode 15 C-bug Category: This is a bug. O-AArch64 Armv8-A or later processors in AArch64 mode O-ios Operating system: iOS O-macos Operating system: macOS T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#130085 opened Sep 7, 2024 by madsmtm
2
Build target arm64ec-pc-windows-msvc with -Zbuild-std got linking error. -Zbuild-std Unstable Cargo option: Compile the standard library yourself. A-linkage Area: linking into static, shared libraries and binaries O-AArch64 Armv8-A or later processors in AArch64 mode O-windows Operating system: Windows requires-nightly This issue requires a nightly compiler in some way. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#130020 opened Sep 6, 2024 by Wyvern
10
c_char signedness doesn't match with Clang's default on various no-std and tier 3 targets A-ABI Area: Concerning the application binary interface (ABI) C-bug Category: This is a bug. O-AArch64 Armv8-A or later processors in AArch64 mode O-android Operating system: Android O-Arm Target: 32-bit Arm processors (armv6, armv7, thumb...), including 64-bit Arm in AArch32 state O-bare-metal Target: Rust without an operating system O-csky Target: glaCSKY above covers over me~ O-hermit Operating System: Hermit O-illumos the other shiny OS O-riscv Target: RISC-V architecture T-libs Relevant to the library team, which will review and decide on the PR/issue.
#129945 opened Sep 3, 2024 by taiki-e
1
6
Very long compilation time on Apple Silicon platform A-LLVM Area: Code generation parts specific to LLVM. Both correctness bugs and optimization-related issues. I-compiletime Issue: Problems and improvements with respect to compile times. O-AArch64 Armv8-A or later processors in AArch64 mode O-macos Operating system: macOS
#129713 opened Aug 28, 2024 by kika
HWasan with external clang runtime (undefined symbol: __hwasan_tls) A-sanitizers Area: Sanitizers for correctness and code quality C-bug Category: This is a bug. O-AArch64 Armv8-A or later processors in AArch64 mode PG-exploit-mitigations Project group: Exploit mitigations
#129489 opened Aug 23, 2024 by n-bes
4
Build to AArch64 errors with "error: fixup value out of range" 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. D-terse Diagnostics: An error or lint that doesn't give enough information about the problem at hand. I-ICE Issue: The compiler panicked, giving an Internal Compilation Error (ICE) ❄️ O-AArch64 Armv8-A or later processors in AArch64 mode T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#129299 opened Aug 20, 2024 by midnightveil
gdb on aarch64-unknown-linux-gnu/windows-gnu cannot print unused by-value non-immediate arguments 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. O-AArch64 Armv8-A or later processors in AArch64 mode T-compiler Relevant to the compiler team, which will review and decide on the PR/issue. WG-debugging Working group: Bad Rust debugging experiences
#128973 opened Aug 11, 2024 by saethlin
Reordered LLVM-IR bbs causing FileCheck failures on aarch64-unknown-none A-LLVM Area: Code generation parts specific to LLVM. Both correctness bugs and optimization-related issues. A-testsuite Area: The testsuite used to check the correctness of rustc C-bug Category: This is a bug. O-AArch64 Armv8-A or later processors in AArch64 mode T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#127395 opened Jul 5, 2024 by pvdrz
1
Rust 1.81-nightly slower than Rust 1.79 ? A-mir-opt-inlining Area: MIR inlining C-bug Category: This is a bug. I-slow Issue: Problems and improvements with respect to performance of generated code. O-AArch64 Armv8-A or later processors in AArch64 mode O-macos Operating system: macOS P-medium Medium priority regression-untriaged Untriaged performance or correctness regression. S-has-mcve Status: A Minimal Complete and Verifiable Example has been found for this issue
#126937 opened Jun 25, 2024 by GuillaumePressiat
46
asm! should actually understand "can you address this register?" A-inline-assembly Area: Inline assembly (`asm!(…)`) C-cleanup Category: PRs that clean code up or issues documenting cleanup. O-AArch64 Armv8-A or later processors in AArch64 mode O-riscv Target: RISC-V architecture 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.
#126890 opened Jun 24, 2024 by workingjubilee
Excess object in staticlib archive eventually causing link error 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. C-external-bug Category: issue that is caused by bugs in software beyond our control O-AArch64 Armv8-A or later processors in AArch64 mode O-musl Target: The musl libc regression-from-stable-to-stable Performance or correctness regression from one stable version to another. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#125619 opened May 27, 2024 by XrXr
4
-C target_cpu=cortex-a72 (and -target-cpu=native on Raspberry Pi) wrongly enables crypto features that are optional on Cortex-A72 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. A-targets Area: Concerning the implications of different compiler targets 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 llvm-fixed-upstream Issue expected to be fixed by the next major LLVM upgrade, or backported fixes O-AArch64 Armv8-A or later processors in AArch64 mode P-high High priority T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#125033 opened May 12, 2024 by briansmith
20
bti instruction is removed in release version A-target-feature Area: Enabling/disabling target features like AVX, Neon, etc. C-bug Category: This is a bug. O-AArch64 Armv8-A or later processors in AArch64 mode PG-exploit-mitigations Project group: Exploit mitigations T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#124314 opened Apr 24, 2024 by ggj-1213
7
RUST_BACKTRACE=full loop with -Cpanic=abort on aarch64-unknown-linux-gnu A-backtrace Area: Backtraces A-runtime Area: std's runtime and "pre-main" init for handling backtraces, unwinds, stack overflows C-bug Category: This is a bug. O-AArch64 Armv8-A or later processors in AArch64 mode P-high High priority regression-from-stable-to-stable Performance or correctness regression from one stable version to another. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#123733 opened Apr 10, 2024 by cuviper
1
25
rust 1.77.1 fails to build on aarch64-unknown-netbsd with stack exhaustion C-bug Category: This is a bug. O-AArch64 Armv8-A or later processors in AArch64 mode O-netbsd Operating system: NetBSD P-low Low priority regression-from-stable-to-stable Performance or correctness regression from one stable version to another. 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.
#123551 opened Apr 6, 2024 by he32
22
portable_simd bitmask + select generates poor code on ARM64 A-codegen Area: Code generation 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-optimization Category: An issue highlighting optimization opportunities or PRs implementing such 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-AArch64 Armv8-A or later processors in AArch64 mode PG-portable-simd Project group: Portable SIMD (https://github.com/rust-lang/project-portable-simd) 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.
#122376 opened Mar 12, 2024 by orlp
1
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