Branch and cache miss speedups

[fio.git] / compiler / compiler.h

diff --git a/compiler/compiler.h b/compiler/compiler.h
index 036ba208e861e79225a3e8827f5ff81895c50818..0a0213b60fca5204cb9d0294ffb01139baa23083 100644 (file)
--- a/compiler/compiler.h
+++ b/compiler/compiler.h
@@ -20,4 +20,6 @@
 #define fio_init       __attribute__((constructor))
 #define fio_exit       __attribute__((destructor))
 
+#define fio_unlikely(x)        __builtin_expect(!!(x), 0)
+
 #endif