Module simd_vectorization 

SIMD Vectorization: Batch hash operations

Provides batch hash processing for parallel hash operations. Leverages existing SIMD in sha2 crate (asm feature) + Rayon for CPU-core parallelization.

Provides batch functions for:

• SHA256 and double SHA256 (Bitcoin standard)
• RIPEMD160 and HASH160 (OP_HASH160)

Uses chunked processing for better cache locality and parallelizes across CPU cores when batch size is large enough (≥8 items).

Reference: BLVM Optimization Pass 5 - SIMD Vectorization

Functions

batch_double_sha256

Batch double SHA256: Compute SHA256(SHA256(x)) for multiple inputs

batch_double_sha256_aligned

Batch double SHA256 with cache-aligned output

batch_hash160

Batch HASH160: Compute RIPEMD160(SHA256(x)) for multiple inputs

batch_ripemd160

Batch RIPEMD160: Compute RIPEMD160 for multiple inputs

batch_sha256

Batch SHA256: Compute SHA256 for multiple independent inputs