mirror/opencv
1
0
Fork 0
mirror of https://github.com/opencv/opencv.git synced 2024-11-27 12:40:05 +08:00
Code Issues Actions Packages Projects Releases Wiki Activity

cmake: fix popcnt detection

Browse Source 
via GCC/Clang __POPCNT__ define
This commit is contained in:
Alexander Alekhin 2018-04-24 12:40:25 +03:00
parent ff6ce6cd01
commit a2d6fc7ac0
1 changed files with 3 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
cmake/checks/cpu_popcnt.cpp
View File

@ -4,12 +4,14 @@
# define CV_POPCNT_U64 _mm_popcnt_u64
# endif
# define CV_POPCNT_U32 _mm_popcnt_u32
#else
#elif defined(__POPCNT__)
# include <popcntintrin.h>
# if defined(__x86_64__)
# define CV_POPCNT_U64 __builtin_popcountll
# endif
# define CV_POPCNT_U32 __builtin_popcount
#else
# error "__POPCNT__ is not defined by compiler"
#endif
int main()