/* crc32_simd.h * * Copyright 2017 The Chromium Authors. All rights reserved. * Use of this source code is governed by a BSD-style license that can be * found in the Chromium source repository LICENSE file. */ #include #include "zconf.h" #include "zutil.h" #include "deflate.h" /* * crc32_sse42_simd_(): compute the crc32 of the buffer, where the buffer * length must be at least 64, and a multiple of 16. */ uint32_t ZLIB_INTERNAL crc32_sse42_simd_( const unsigned char *buf, z_size_t len, uint32_t crc); /* * crc32_sse42_simd_ buffer size constraints: see the use in zlib/crc32.c * for computing the crc32 of an arbitrary length buffer. */ #define Z_CRC32_SSE42_MINIMUM_LENGTH 64 #define Z_CRC32_SSE42_CHUNKSIZE_MASK 15 /* * CRC32 checksums using ARMv8-a crypto instructions. */ uint32_t ZLIB_INTERNAL armv8_crc32_little(unsigned long crc, const unsigned char* buf, z_size_t len);