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authoryazevnul <yazevnul@yandex-team.ru>2022-02-10 16:46:46 +0300
committerDaniil Cherednik <dcherednik@yandex-team.ru>2022-02-10 16:46:46 +0300
commit8cbc307de0221f84c80c42dcbe07d40727537e2c (patch)
tree625d5a673015d1df891e051033e9fcde5c7be4e5 /contrib/libs/base64/neon32/dec_uint32.c
parent30d1ef3941e0dc835be7609de5ebee66958f215a (diff)
downloadydb-8cbc307de0221f84c80c42dcbe07d40727537e2c.tar.gz
Restoring authorship annotation for <yazevnul@yandex-team.ru>. Commit 1 of 2.
Diffstat (limited to 'contrib/libs/base64/neon32/dec_uint32.c')
-rw-r--r--contrib/libs/base64/neon32/dec_uint32.c96
1 files changed, 48 insertions, 48 deletions
diff --git a/contrib/libs/base64/neon32/dec_uint32.c b/contrib/libs/base64/neon32/dec_uint32.c
index 5856446861..052284c7e6 100644
--- a/contrib/libs/base64/neon32/dec_uint32.c
+++ b/contrib/libs/base64/neon32/dec_uint32.c
@@ -1,48 +1,48 @@
-// If we have native uint32's, pick off 4 bytes at a time for as long as we
-// can, but make sure that we quit before seeing any == markers at the end of
-// the string. Also, because we write a zero at the end of the output, ensure
-// that there are at least 2 valid bytes of input data remaining to close the
-// gap. 4 + 2 + 2 = 8 bytes:
-while (srclen >= 8)
-{
- uint32_t str, res, dec;
-
- // Load string:
- str = *(uint32_t *)c;
-
- // Shuffle bytes to 32-bit bigendian:
- str = cpu_to_be32(str);
-
- // Lookup each byte in the decoding table; if we encounter any
- // "invalid" values, fall back on the bytewise code:
- if ((dec = neon32_base64_table_dec[str >> 24]) > 63) {
- break;
- }
- res = dec << 26;
-
- if ((dec = neon32_base64_table_dec[(str >> 16) & 0xFF]) > 63) {
- break;
- }
- res |= dec << 20;
-
- if ((dec = neon32_base64_table_dec[(str >> 8) & 0xFF]) > 63) {
- break;
- }
- res |= dec << 14;
-
- if ((dec = neon32_base64_table_dec[str & 0xFF]) > 63) {
- break;
- }
- res |= dec << 8;
-
- // Reshuffle and repack into 3-byte output format:
- res = be32_to_cpu(res);
-
- // Store back:
- *(uint32_t *)o = res;
-
- c += 4;
- o += 3;
- outl += 3;
- srclen -= 4;
-}
+// If we have native uint32's, pick off 4 bytes at a time for as long as we
+// can, but make sure that we quit before seeing any == markers at the end of
+// the string. Also, because we write a zero at the end of the output, ensure
+// that there are at least 2 valid bytes of input data remaining to close the
+// gap. 4 + 2 + 2 = 8 bytes:
+while (srclen >= 8)
+{
+ uint32_t str, res, dec;
+
+ // Load string:
+ str = *(uint32_t *)c;
+
+ // Shuffle bytes to 32-bit bigendian:
+ str = cpu_to_be32(str);
+
+ // Lookup each byte in the decoding table; if we encounter any
+ // "invalid" values, fall back on the bytewise code:
+ if ((dec = neon32_base64_table_dec[str >> 24]) > 63) {
+ break;
+ }
+ res = dec << 26;
+
+ if ((dec = neon32_base64_table_dec[(str >> 16) & 0xFF]) > 63) {
+ break;
+ }
+ res |= dec << 20;
+
+ if ((dec = neon32_base64_table_dec[(str >> 8) & 0xFF]) > 63) {
+ break;
+ }
+ res |= dec << 14;
+
+ if ((dec = neon32_base64_table_dec[str & 0xFF]) > 63) {
+ break;
+ }
+ res |= dec << 8;
+
+ // Reshuffle and repack into 3-byte output format:
+ res = be32_to_cpu(res);
+
+ // Store back:
+ *(uint32_t *)o = res;
+
+ c += 4;
+ o += 3;
+ outl += 3;
+ srclen -= 4;
+}