thevar1able/ClickHouse
1
0
Fork 0
mirror of https://github.com/ClickHouse/ClickHouse.git synced 2024-12-17 11:52:27 +00:00
Code Issues Packages Projects Releases Wiki Activity

Added SIMD for UInt32/64

Browse Source
This commit is contained in:
Александр Нам 2023-08-20 23:19:05 +00:00
parent 2b8592cd5b
commit 539555b755
1 changed files with 22 additions and 9 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

31
src/Compression/CompressionCodecGCD.cpp
View File

@ -14,6 +14,9 @@
#include <cstdint>
#include <numeric>
#include <libdivide-config.h>
#include <libdivide.h>
namespace DB
{
@ -26,10 +29,6 @@ T gcd_func(T a, T b)
a = b;
b = c;
}
if (a == T(-1))
{
return -a;
}
return a;
}
@ -116,12 +115,26 @@ void compressDataForType(const char * source, UInt32 source_size, char * dest)
unalignedStore<T>(dest, gcd);
dest += sizeof(T);
cur_source = source;
while (cur_source < source_end)
if (sizeof(T) == 4 || sizeof(T) == 8)
{
unalignedStore<T>(dest, unalignedLoad<T>(cur_source) / gcd);
cur_source += sizeof(T);
dest += sizeof(T);
libdivide::divider<T> divider(gcd);
cur_source = source;
while (cur_source < source_end)
{
unalignedStore<T>(dest, unalignedLoad<T>(cur_source) / divider);
cur_source += sizeof(T);
dest += sizeof(T);
}
}
else
{
cur_source = source;
while (cur_source < source_end)
{
unalignedStore<T>(dest, unalignedLoad<T>(cur_source) / gcd);
cur_source += sizeof(T);
dest += sizeof(T);
}
}
}