From: Nick Mathewson <nickm@torproject.org>
Date: Wed, 6 Jan 2010 23:41:46 +0000 (-0500)
Subject: Enable branch-prediction hints with EVUTIL_UNLIKELY.
X-Git-Tag: release-2.0.4-alpha~91
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=eaaf27f1f7b834bf60a1003c4d9c32a9a346b1dc;p=libevent

Enable branch-prediction hints with EVUTIL_UNLIKELY.

This had been accidentally disabled.  Since it seems to work with GCC, I'm
turning it back on when GCC is present.
---

diff --git a/util-internal.h b/util-internal.h
index 509f7299..af68a9e3 100644
--- a/util-internal.h
+++ b/util-internal.h
@@ -150,7 +150,7 @@ long _evutil_weakrand(void);
 
 /* Evaluates to the same boolean value as 'p', and hints to the compiler that
  * we expect this value to be false. */
-#ifdef __GNUC__X
+#ifdef __GNUC__
 #define EVUTIL_UNLIKELY(p) __builtin_expect(!!(p),0)
 #else
 #define EVUTIL_UNLIKELY(p) (p)