1// SPDX-License-Identifier: 0BSD
2
3///////////////////////////////////////////////////////////////////////////////
4//
5/// \file       crc64_table.c
6/// \brief      Precalculated CRC64 table with correct endianness
7//
8//  Author:     Lasse Collin
9//
10///////////////////////////////////////////////////////////////////////////////
11
12#include "common.h"
13
14
15// FIXME: Compared to crc_common.h this has to check for __x86_64__ too
16// so that in 32-bit builds crc64_x86.S won't break due to a missing table.
17#if defined(HAVE_USABLE_CLMUL) && ((defined(__x86_64__) && defined(__SSSE3__) \
18			&& defined(__SSE4_1__) && defined(__PCLMUL__)) \
19		|| (defined(__e2k__) && __iset__ >= 6))
20#	define NO_CRC64_TABLE
21#endif
22
23
24#ifdef NO_CRC64_TABLE
25// No table needed. Use a typedef to avoid an empty translation unit.
26typedef void lzma_crc64_dummy;
27
28#else
29// Having the declaration here silences clang -Wmissing-variable-declarations.
30extern const uint64_t lzma_crc64_table[4][256];
31
32#	if defined(WORDS_BIGENDIAN)
33#		include "crc64_table_be.h"
34#	else
35#		include "crc64_table_le.h"
36#	endif
37#endif
38