Added macros for hinting branch predictor.

[libucw.git] / lib / config.h

diff --git a/lib/config.h b/lib/config.h
index ee782b69d87a11df686788cd754ff4f443b4125c..cc2d86da15ac5f3ec43f2dd11b6dfb5ae938f4a5 100644 (file)
--- a/lib/config.h
+++ b/lib/config.h
@@ -83,6 +83,8 @@ typedef s32 sh_off_t;
 #define PACKED __attribute__((packed))
 #define CONST __attribute__((const))
 #define PURE __attribute__((const))
+#define likely(x) __builtin_expect((x),1)
+#define unlikely(x) __builtin_expect((x),0)
 
 #else
 #error This program requires the GNU C compiler.