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authorHans Jansen <hansjansen162@outlook.com>2023-10-12 19:37:01 +0200
committerJia Tan <jiat0218@gmail.com>2023-10-13 20:54:05 +0800
commitf1cd9d7194f005cd66ec03c6635ceae75f90ef17 (patch)
treef51bc020749579f921389819bea6ecb8e8906f4a /src/liblzma/check/crc32_table.c
parentliblzma: Moved CLMUL CRC logic to crc_common.h. (diff)
downloadxz-f1cd9d7194f005cd66ec03c6635ceae75f90ef17.tar.xz
liblzma: Added crc32_clmul to crc32_fast.c.
Diffstat (limited to '')
-rw-r--r--src/liblzma/check/crc32_table.c19
1 files changed, 15 insertions, 4 deletions
diff --git a/src/liblzma/check/crc32_table.c b/src/liblzma/check/crc32_table.c
index b11762ae..e53b63c9 100644
--- a/src/liblzma/check/crc32_table.c
+++ b/src/liblzma/check/crc32_table.c
@@ -12,11 +12,22 @@
#include "common.h"
+
+// FIXME: Compared to crc32_fast.c this has to check for __x86_64__ too
+// so that in 32-bit builds crc32_x86.S won't break due to a missing table.
+#if !defined(HAVE_ENCODERS) && ((defined(__x86_64__) && defined(__SSSE3__) \
+ && defined(__SSE4_1__) && defined(__PCLMUL__)) \
+ || (defined(__e2k__) && __iset__ >= 6))
+// No table needed. Use a typedef to avoid an empty translation unit.
+typedef void lzma_crc32_dummy;
+
+#else
// Having the declaration here silences clang -Wmissing-variable-declarations.
extern const uint32_t lzma_crc32_table[8][256];
-#ifdef WORDS_BIGENDIAN
-# include "crc32_table_be.h"
-#else
-# include "crc32_table_le.h"
+# ifdef WORDS_BIGENDIAN
+# include "crc32_table_be.h"
+# else
+# include "crc32_table_le.h"
+# endif
#endif