ashvardanian/StringZilla v4.2.0

v4.2: Faster Hashing and SHA-256 🫆

on GitHub

User-facing updates:

• 🆕 SHA-256 checksums
• 🆕 Detect compilation settings

Implementation details:

• 🆕 Intel Goldmont capabilities level
• 🆕 Arm NEON+SHA capabilities level
• Hardened Rust builds & capability masking
• Faster buffer filling in sz_hash in NEON backend
• Fixed tail handling in sz_copy in SVE backend

Minor

• Add: Check comp-time capabilities (3347be4)
• Add: sz_cap_goldmont_k capability! (f70e927)
• Add: neon+sha new capability! (fcb68a4)
• Add: Sha256 to bench_token (bb077da)
• Add: hmac_sha256 APIs (bf1971e)
• Add: Sha256 class for Python (6ae7b75)
• Add: Initial Sha256 variant for NEON (bd35030)
• Add: SHA256 for Arm (20672dd)

Patch

• Fix: Avoid unaligned SHA loads on ArmV7 (ebf0503)
• Fix: Sign conversion warning (3c3e5fc)
• Make: before-all for dnf on Fedora & apt on Debian (fc74452)
• Make: Consume env-vars for Rust backend builds (222fc39)
• Improve: Amortize bench_unary costs (d8d19ce)
• Fix: Init uint32x4_t on MSVC (3dce631)
• Improve: Bring back SVE2 hash for short inputs (b1c750b)
• Improve: More sorting tests (61e08ce)
• Improve: Simplify SVE memory-ops (35e2236)
• Fix: sz_copy_sve tail issue (2fa818d)
• Fix: Avoid <arm_neon_sve_bridge.h> (e5b4496)
• Improve: Different SHA pipeline for AArch64 (c8aafd3)
• Improve: Try better SHA pipelining (313f71f)
• Improve: Faster 2-block SHA256 on NEON (9425341)
• Improve: Deprecate SVE2 hashing (9cb1588)
• Improve: Try using non-temporal SVE loads (4572a63)
• Fix: svlasta_u64(svpfalse_b()) UB (4833e83)
• Improve: Westmere-like hash updates in NEON (064355f)
• Improve: Hardening Rust builds (d6a9ba6)
• Fix: Type-casting on Arm (03a0340)