Function sz_equal_sve

include/stringzilla/compare.h:487–501

#endif

SZ_PUBLIC sz_bool_t sz_equal_sve(sz_cptr_t a, sz_cptr_t b, sz_size_t length) {
    // Determine the number of bytes in an SVE vector.
    sz_size_t const vector_bytes = svcntb();
    sz_size_t progress = 0;
    do {
        svbool_t progress_vec = svwhilelt_b8((sz_u64_t)progress, (sz_u64_t)length);
        svuint8_t a_vec = svld1(progress_vec, (sz_u8_t const *)(a + progress));
        svuint8_t b_vec = svld1(progress_vec, (sz_u8_t const *)(b + progress));
        // Compare: generate a predicate marking lanes where a!=b
        svbool_t not_equal_vec = svcmpne(progress_vec, a_vec, b_vec);
        if (svptest_any(progress_vec, not_equal_vec)) return sz_false_k;
        progress += vector_bytes;
    } while (progress < length);
    return sz_true_k;
}

SZ_PUBLIC sz_ordering_t sz_order_sve(sz_cptr_t a, sz_size_t a_length, sz_cptr_t b, sz_size_t b_length) {
    //! Before optimizing this, read the "Operations Not Worth Optimizing" in Contributions Guide: