From: Martin Mares <mj@ucw.cz>
Date: Thu, 12 Jun 2003 21:36:57 +0000 (+0000)
Subject: Added macros for hinting branch predictor.
X-Git-Tag: holmes-import~1252
X-Git-Url: http://mj.ucw.cz/gitweb/?a=commitdiff_plain;h=f874b43fb65e4fadc591319f1aea6084bb72254b;p=libucw.git

Added macros for hinting branch predictor.
---

diff --git a/lib/config.h b/lib/config.h
index ee782b69..cc2d86da 100644
--- 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.