Issues

• algebraic_* on f32x*/f64x*

  C-feature-request
  rust-lang/portable-simd#539 · Filter by author Quant1um opened on Jul 18, 2026

• PrivateMethods' items aren't private, they are accessible via MaskElement

  rust-lang/portable-simd#537 · Filter by author obi1kenobi opened on Jul 1, 2026
  4

• SimdPartialOrd methods for Mask don't match PartialOrd methods for bool

  C-bug
  rust-lang/portable-simd#527 · Filter by author programmerjake opened on May 10, 2026
  3

• Select is a strangely named trait and not part of the prelude

  rust-lang/portable-simd#505 · Filter by author orlp opened on Feb 2, 2026
  3

• StdFloat::round incorrectly states ties round toward zero

  C-bug
  rust-lang/portable-simd#499 · Filter by author Mukundan314 opened on Jan 10, 2026

• Excessive alignment constraints for larger than machine-sized vectors

  C-feature-request
  rust-lang/portable-simd#495 · Filter by author MMunier opened on Dec 7, 2025

• Improve load, store, gather, scatter codegen for targets without masked load/store instructions

  C-bug
  rust-lang/portable-simd#494 · Filter by author okaneco opened on Nov 29, 2025

• swizzle_dyn: variant where out-of-bounds indices return implementation-defined result

  C-feature-request
  rust-lang/portable-simd#486 · Filter by author SuperSamus opened on Oct 2, 2025

• Add unchecked_* methods for integers

  C-feature-request
  rust-lang/portable-simd#481 · Filter by author CrazyboyQCD opened on Sep 10, 2025

• Add to_mask function for Simd

  rust-lang/portable-simd#479 · Filter by author okaneco opened on Sep 5, 2025

• Simd::gather_unchecked()

  C-feature-request
  rust-lang/portable-simd#475 · Filter by author nazar-pc opened on Aug 24, 2025
  3

• Mask operations are not optimized well

  C-bug
  rust-lang/portable-simd#472 · Filter by author DaniPopes opened on Aug 12, 2025
  22

• Constified SIMD

  C-feature-request
  rust-lang/portable-simd#467 · Filter by author clarfonthey opened on Jun 13, 2025
  8

• Test suite assumes that cos, exp, and other functions have deterministic precision

  rust-lang/portable-simd#463 · Filter by author RalfJung opened on Jun 11, 2025
  5

• Better ergonomics for working with vector of pointers to structs/enums

  C-feature-request
  rust-lang/portable-simd#459 · Filter by author amotzop opened on Apr 21, 2025
  1

• Add {u32,f32,...}xN shorthand types for Simd<{u32,f32,...}, N>

  C-feature-request
  rust-lang/portable-simd#447 · Filter by author ds84182 opened on Dec 23, 2024
  3

• Integer multiply high (mulh) equivalent in SimdInt and SimdUint

  C-feature-request
  rust-lang/portable-simd#440 · Filter by author ds84182 opened on Sep 18, 2024
  3

• Aligning std::simd and Rust on Arm v7 Neon float behavior

  C-bug
  rust-lang/portable-simd#439 · Filter by author workingjubilee opened on Sep 12, 2024
  15

• simd_div and simd_rem ICEs for non-power-of-two length vectors on Aarch64

  C-bug
  rust-lang/portable-simd#427 · Filter by author calebzulawski opened on Aug 8, 2024
  4

• why sub and mul operation of f32x4 is slower than scalar version?

  rust-lang/portable-simd#426 · Filter by author Jad2wizard opened on Jun 22, 2024
  4

• Fast round

  C-feature-request
  rust-lang/portable-simd#421 · Filter by author NamorNiradnug opened on May 21, 2024
  3

• Can't use generic_const_exprs

  C-bug
  rust-lang/portable-simd#416 · Filter by author yyy33 opened on Apr 16, 2024
  1

• Seemless softwere/hardwere computation interoperation

  C-feature-request
  rust-lang/portable-simd#403 · Filter by author TirushOne opened on Mar 7, 2024
  1

• Bit operations on float

  C-feature-request
  rust-lang/portable-simd#388 · Filter by author TechPizzaDev opened on Feb 9, 2024
  8

• MulAdd and MulAddAssign

  C-feature-request
  rust-lang/portable-simd#387 · Filter by author Pr0methean opened on Jan 5, 2024
  9