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lane-wise popcnt or count_ones

Status: Open.

#341 In linebender/fearless_simd;

· noamteyssier opened on Aug 19, 2026

Feature Request: Add cross-lane horizontal reduction methods (e.g., .reduce_sum(), .reduce_max()) to SimdBase / Simd vector types

Status: Open.

#340 In linebender/fearless_simd;

· Mnwa opened on Aug 19, 2026

vectorize() + #[inline(always)] is error-prone and hard to teach

Status: Open.

#338 In linebender/fearless_simd;

· Shnatsel opened on Aug 18, 2026

Make all Level::as_* methods available on all targets

Status: Open.

#334 In linebender/fearless_simd;

· danderson opened on Aug 16, 2026

Test helper macros for downstream users?

Status: Open.

#332 In linebender/fearless_simd;

· danderson opened on Aug 15, 2026

(Documentation request) Explain what each example does in fearless_simd directory README

Status: Open.

#329 In linebender/fearless_simd;

· hardBSDk opened on Aug 15, 2026

Add a description in repository (not README)

Status: Open.

#328 In linebender/fearless_simd;

· hardBSDk opened on Aug 15, 2026

Optimize float<->integer conversions further

Status: Open.

#311 In linebender/fearless_simd;

· Shnatsel opened on Aug 5, 2026

Optimize 4-way interleaved load/store on x86

Status: Open.

#305 In linebender/fearless_simd;

· Shnatsel opened on Aug 4, 2026

rustc codegen issue tracker

Status: Open.

#281 In linebender/fearless_simd;

· Shnatsel opened on Jul 24, 2026

Optimize AVX2 vector shifts once rustc codegen bugs are fixed

Status: Open.

#280 In linebender/fearless_simd;

· Shnatsel opened on Jul 24, 2026

Convert unit tests into generated doctests

Status: Open.

#267 In linebender/fearless_simd;

· Shnatsel opened on Jul 6, 2026