thevar1able/ClickHouse
1
0
Fork 0
mirror of https://github.com/ClickHouse/ClickHouse.git synced 2024-09-20 08:40:50 +00:00
Code Issues Packages Projects Releases Wiki Activity

Remove notNull changes

Browse Source
This commit is contained in:
Raúl Marín 2021-09-11 22:36:22 +02:00
parent 46eb305eec
commit 940e075941
1 changed files with 0 additions and 11 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
src/AggregateFunctions/AggregateFunctionSum.h
View File

@ -68,17 +68,6 @@ struct AggregateFunctionSumData
if constexpr (std::is_floating_point_v<T>)
{
#if defined(__clang__)
/// With clang we can tell the compiler to vectorize and it should work with all types when possible, including floating types
/// Something around the number of SSE registers * the number of elements fit in register.
/// Recommend half of those for each vectorization
#pragma clang loop vectorize(enable) vectorize_width(64 / sizeof(T)) unroll_count(128 / sizeof(T))
for (size_t i = 0; i < count; i++)
{
Impl::add(sum, ptr[i]);
}
return;
#endif
/// Compiler cannot unroll this loop, do it manually.
/// (at least for floats, most likely due to the lack of -fassociative-math)