v0.3.0

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This release has an MSRV of 1.86.

Added

• SimdBase::witness to fetch the Simd implementation associated with a
  generic vector. (#76 by @Ralith)
• Select is now available on native-width masks. (#77, #83 by @Ralith)
• Simd::shrv_* preforms a right shift with shift amount specified
  per-lane. (#79 by @Ralith)
• The >> operator is implemented for SIMD vectors. (#79 by @Ralith)
• Assignment operator implementations. (#80 by @Ralith)
• SimdFrom splatting is available on native-width vectors. (#84 by @Ralith)
• Left shift by u32. (#86 by @Ralith)
• Unary negation of signed integers. (#91 by @Ralith)
• A simpler dispatch macro to replace simd_dispatch. (#96, #99 by @Ralith, @DJMcNab)

Fixed

• Simd now requires consistent mask types for native-width
  vectors. (#75 by @Ralith)
• Simd now requires consistent Bytes types for native-width vectors,
  enabling Bytes::bitcast in generic code. (#81 by @Ralith)
• Scalar fallback now uses wrapping integer addition. (#85 by @Ralith)

Changed

• Breaking: a.madd(b, c) and a.msub(b, c) now correspond to a * b + c and a * b - c for consistency with mul_add in
  std. (#88 by @Ralith)
  Previously, madd was a + b * c, and msub was a - b * c.
  Therefore, if you previously had a.madd(b, c), that's now written as b.madd(c, a).
  And if you had a.msub(b, c), that's now written b.madd(-c, a).
• Constructors for static SIMD levels are now const (#93 by @Ralith)

Full Changelog: v0.2.0...v0.3.0

v0.2.0

Crates.io | Docs

This release has an MSRV of 1.86.

There has been a complete rewrite of Fearless SIMD.
For some details of the ideas used, see our blog post Towards fearless SIMD, 7 years later.

The repository has also been moved into the Linebender organisation.

New Contributors

• @LaurenzV made their first contribution in #6
• @ajakubowicz-canva made their first contribution in #8
• @no-materials made their first contribution in #21
• @Ralith made their first contribution in #32
• @sagudev made their first contribution in #43
• @DJMcNab made their first contribution in #57

Full Changelog: https://github.com/linebender/fearless_simd/commits/v0.2.0