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| author | Andrew Tridgell <tridge@samba.org> | 2009-09-17 15:24:20 -0700 |
|---|---|---|
| committer | Andrew Tridgell <tridge@samba.org> | 2009-09-17 15:24:20 -0700 |
| commit | 39971fff27f71b514308d10d7a2d8c3fb58c2420 (patch) | |
| tree | 101f2adac9ef41af17579d22f6ddd56ada62ce5d /lib/replace/replace.h | |
| parent | 23676b6e9e8aad0ac2aa78d04e65f637b4551527 (diff) | |
| parent | e71d9728f52e969e07927c5b38fa062c6ef6d1eb (diff) | |
| download | samba-39971fff27f71b514308d10d7a2d8c3fb58c2420.tar.gz samba-39971fff27f71b514308d10d7a2d8c3fb58c2420.tar.xz samba-39971fff27f71b514308d10d7a2d8c3fb58c2420.zip | |
Merge branch 'master' of /home/tridge/samba/git/combined
Diffstat (limited to 'lib/replace/replace.h')
| -rw-r--r-- | lib/replace/replace.h | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/lib/replace/replace.h b/lib/replace/replace.h index 2db6aa1226..6424d10c0f 100644 --- a/lib/replace/replace.h +++ b/lib/replace/replace.h @@ -704,4 +704,23 @@ char *ufc_crypt(const char *key, const char *salt); #endif #endif +/* these macros gain us a few percent of speed on gcc */ +#if (__GNUC__ >= 3) +/* the strange !! is to ensure that __builtin_expect() takes either 0 or 1 + as its first argument */ +#ifndef likely +#define likely(x) __builtin_expect(!!(x), 1) +#endif +#ifndef unlikely +#define unlikely(x) __builtin_expect(!!(x), 0) +#endif +#else +#ifndef likely +#define likely(x) (x) +#endif +#ifndef unlikely +#define unlikely(x) (x) +#endif +#endif + #endif /* _LIBREPLACE_REPLACE_H */ |