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Issues list

unreachable pub item from portable-simd with target_feature = "avx512f" A-target-feature Area: Enabling/disabling target features like AVX, Neon, etc. C-bug Category: This is a bug. P-low Low priority PG-portable-simd Project group: Portable SIMD (https://github.com/rust-lang/project-portable-simd) regression-from-stable-to-beta Performance or correctness regression from stable to beta. T-libs Relevant to the library team, which will review and decide on the PR/issue.
#138054 opened Mar 5, 2025 by 12101111
8
Workaround for llvm bug for f32x3 saturating fp->int opt-level=0 on aarch64 is fixed in LLVM 20 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-cleanup Category: PRs that clean code up or issues documenting cleanup. 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-libs Relevant to the library team, which will review and decide on the PR/issue. WG-llvm Working group: LLVM backend code generation
#135982 opened Jan 24, 2025 by programmerjake
1
Meta Tracking Issue for LLVM workarounds A-LLVM Area: Code generation parts specific to LLVM. Both correctness bugs and optimization-related issues. C-tracking-issue Category: An issue tracking the progress of sth. like the implementation of an RFC PG-portable-simd Project group: Portable SIMD (https://github.com/rust-lang/project-portable-simd) S-tracking-forever Status: Never to be closed. 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. WG-llvm Working group: LLVM backend code generation
#135981 opened Jan 24, 2025 by jieyouxu
Internal SIMD layout specification is not flexible enough for SPIR-V A-align Area: alignment control (`repr(align(N))` and so on) A-repr Area: the `#[repr(stuff)]` attribute A-SIMD Area: SIMD (Single Instruction Multiple Data) 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.
#130405 opened Sep 15, 2024 by fu5ha
4
Weird AVX 512 code generated with std::simd when using -Zbuild-std A-codegen Area: Code generation A-SIMD Area: SIMD (Single Instruction Multiple Data) C-bug Category: This is a bug. 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.
#129293 opened Aug 20, 2024 by cvijdea-bd
1
What should SIMD bitmasks look like? A-SIMD Area: SIMD (Single Instruction Multiple Data) C-discussion Category: Discussion or questions that doesn't represent real issues. 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-opsem Relevant to the opsem team
#126217 opened Jun 10, 2024 by RalfJung
6
WASM+simd128 codegen of a.simd_eq(Simd::splat(b)).any() deteriorates as width increases 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-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-wasm Target: WASM (WebAssembly), http://webassembly.org/ PG-portable-simd Project group: Portable SIMD (https://github.com/rust-lang/project-portable-simd) requires-nightly This issue requires a nightly compiler in some way. S-has-mcve Status: A Minimal Complete and Verifiable Example has been found for this issue
#122623 opened Mar 17, 2024 by alion02
2
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
Strange register allocation causes slowdown A-SIMD Area: SIMD (Single Instruction Multiple Data) C-bug Category: This is a bug. 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.
#121529 opened Feb 23, 2024 by SeeSpring
1
fn where clause "constrains trait impls" or something A-SIMD Area: SIMD (Single Instruction Multiple Data) C-bug Category: This is a bug. 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.
#99211 opened Jul 13, 2022 by leddoo
1
Tracking Issue for RFC 2948: Portable SIMD 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 needs-rfc This change is large or controversial enough that it should have an RFC accepted before doing it. PG-portable-simd Project group: Portable SIMD (https://github.com/rust-lang/project-portable-simd) T-libs-api Relevant to the library API team, which will review and decide on the PR/issue.
#86656 opened Jun 27, 2021 by calebzulawski
1 of 9 tasks
37
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