mirror/tracy
1
0
Fork 0
mirror of https://github.com/wolfpld/tracy.git synced 2024-11-10 02:31:48 +00:00
Code Issues Packages Projects Releases Wiki Activity

Add common lzcnt implementation.

Browse Source 
Not really tested, so fingers crossed.
This commit is contained in:
Bartosz Taudul 2021-06-09 20:29:43 +02:00
parent c61a7ef57b
commit 90b51568e9
No known key found for this signature in database
GPG Key ID: B7FE2008B7575DF3
1 changed files with 16 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

16
server/TracyPopcnt.hpp
View File

@ -2,15 +2,21 @@
#define __TRACYPOPCNT_HPP__ #define __TRACYPOPCNT_HPP__
#include <limits.h> #include <limits.h>
#include <stdint.h>
#if defined _WIN64 #if defined _WIN64
# include <intrin.h> # include <intrin.h>
# define TracyCountBits __popcnt64 # define TracyCountBits __popcnt64
# define TracyLzcnt __lzcnt64
#elif defined __GNUC__ || defined __clang__ #elif defined __GNUC__ || defined __clang__
static inline uint64_t TracyCountBits( uint64_t i ) static inline uint64_t TracyCountBits( uint64_t i )
{ {
return uint64_t( __builtin_popcountll( i ) ); return uint64_t( __builtin_popcountll( i ) );
} }
static inline uint64_t TracyLzcnt( uint64_t i )
{
return uint64_t( __builtin_clzll( i ) );
}
#else #else
static inline uint64_t TracyCountBits( uint64_t i ) static inline uint64_t TracyCountBits( uint64_t i )
{ {
@ -19,6 +25,16 @@ static inline uint64_t TracyCountBits( uint64_t i )
i = ( (i + (i >> 4) ) & 0x0F0F0F0F0F0F0F0F ); i = ( (i + (i >> 4) ) & 0x0F0F0F0F0F0F0F0F );
return ( i * (0x0101010101010101) ) >> 56; return ( i * (0x0101010101010101) ) >> 56;
} }
static inline uint64_t TracyLzcnt( uint64_t i )
{
i |= i >> 1;
i |= i >> 2;
i |= i >> 4;
i |= i >> 8;
i |= i >> 16;
i |= i >> 32;
return 64 - TracyCountBits( i );
}
#endif #endif
#endif #endif