X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=lib%2Fcompiler.h;h=760389d58461d2474249598301e2e5525ed91d52;hb=620606f63cc56c7541005dc6787106789e2c364e;hp=27612a74a8efb21618f9685e7439cf7fe1cbcb70;hpb=1e3f34c7693bcabae8e443ac1b246680ef9b60e2;p=sliver-openvswitch.git

diff --git a/lib/compiler.h b/lib/compiler.h
index 27612a74a..760389d58 100644
--- a/lib/compiler.h
+++ b/lib/compiler.h
@@ -26,6 +26,8 @@
 #define ALWAYS_INLINE __attribute__((always_inline))
 #define WARN_UNUSED_RESULT __attribute__((__warn_unused_result__))
 #define SENTINEL(N) __attribute__((sentinel(N)))
+#define OVS_LIKELY(CONDITION) __builtin_expect(!!(CONDITION), 1)
+#define OVS_UNLIKELY(CONDITION) __builtin_expect(!!(CONDITION), 0)
 #else
 #define NO_RETURN
 #define OVS_UNUSED
@@ -35,6 +37,8 @@
 #define ALWAYS_INLINE
 #define WARN_UNUSED_RESULT
 #define SENTINEL(N)
+#define OVS_LIKELY(CONDITION) (!!(CONDITION))
+#define OVS_UNLIKELY(CONDITION) (!!(CONDITION))
 #endif
 
 /* ISO C says that a C implementation may choose any integer type for an enum