diff options
Diffstat (limited to '3rdparty/lzma/C/RotateDefs.h')
-rw-r--r-- | 3rdparty/lzma/C/RotateDefs.h | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/3rdparty/lzma/C/RotateDefs.h b/3rdparty/lzma/C/RotateDefs.h index c3a1385ce5a..8f01d1a6c59 100644 --- a/3rdparty/lzma/C/RotateDefs.h +++ b/3rdparty/lzma/C/RotateDefs.h @@ -1,5 +1,5 @@ /* RotateDefs.h -- Rotate functions -2009-02-07 : Igor Pavlov : Public domain */ +2015-03-25 : Igor Pavlov : Public domain */ #ifndef __ROTATE_DEFS_H #define __ROTATE_DEFS_H @@ -7,11 +7,21 @@ #ifdef _MSC_VER #include <stdlib.h> + +/* don't use _rotl with MINGW. It can insert slow call to function. */ + +/* #if (_MSC_VER >= 1200) */ +#pragma intrinsic(_rotl) +#pragma intrinsic(_rotr) +/* #endif */ + #define rotlFixed(x, n) _rotl((x), (n)) #define rotrFixed(x, n) _rotr((x), (n)) #else +/* new compilers can translate these macros to fast commands. */ + #define rotlFixed(x, n) (((x) << (n)) | ((x) >> (32 - (n)))) #define rotrFixed(x, n) (((x) >> (n)) | ((x) << (32 - (n)))) |