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add compiler macro for patch

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Signed-off-by: ZhouPengcheng <zhoupengcheng11@huawei.com>
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ZhouPengcheng 2022-12-30 04:22:56 +00:00 committed by Gitee
parent 9cf54e8746
commit 52f0dbd936
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GPG Key ID: 173E9B9CA92EEF8F
1 changed files with 6 additions and 4 deletions
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10
zlib-Optimize-CRC32.patch
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@ -11,8 +11,8 @@ crc32 through the interface provided by the neon instruction
set. set.
Modify by Li Qiang. Modify by Li Qiang.
--- ---
crc32.c | 48 ++++++++++++++++++++++++++++++++++++++++++++++++ crc32.c | 50 ++++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 48 insertions(+) 1 file changed, 50 insertions(+)
diff --git a/crc32.c b/crc32.c diff --git a/crc32.c b/crc32.c
index f8357b0..5c53068 100644 index f8357b0..5c53068 100644
@ -28,10 +28,11 @@ index f8357b0..5c53068 100644
/* /*
A CRC of a message is computed on N braids of words in the message, where A CRC of a message is computed on N braids of words in the message, where
@@ -600,6 +603,47 @@ const z_crc_t FAR * ZEXPORT get_crc_table() @@ -600,6 +603,49 @@ const z_crc_t FAR * ZEXPORT get_crc_table()
return (const z_crc_t FAR *)crc_table; return (const z_crc_t FAR *)crc_table;
} }
+#ifdef __aarch64__
+ulg crc32_neon(crc, buf, len) +ulg crc32_neon(crc, buf, len)
+ unsigned long crc; + unsigned long crc;
+ const unsigned char FAR *buf; + const unsigned char FAR *buf;
@ -72,6 +73,7 @@ index f8357b0..5c53068 100644
+ +
+ return (crc_result ^ 0xffffffffL); + return (crc_result ^ 0xffffffffL);
+} +}
+#endif
+ +
/* ========================================================================= /* =========================================================================
* Use ARM machine instructions if available. This will compute the CRC about * Use ARM machine instructions if available. This will compute the CRC about