From: Siddhesh Poyarekar <siddhesh@redhat.com>
Date: Fri, 28 Dec 2012 06:23:01 +0000 (+0530)
Subject: Add __glibc_likely as an alias for __builtin_expect when available
X-Git-Tag: glibc-2.18~927
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=91998e449e0ce758db55aecf2abc3ee510fcbc8f;p=thirdparty%2Fglibc.git

Add __glibc_likely as an alias for __builtin_expect when available
---

diff --git a/ChangeLog b/ChangeLog
index f3e2201bdaa..df6538e4262 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,8 @@
 2012-12-28  Siddhesh Poyarekar  <siddhesh@redhat.com>
 
+	* misc/sys/cdefs.h(__glibc_likely): Wrap __builtin_expect for
+	TRUE case.
+
 	* sysdeps/ieee754/dbl-64/mpa.c (norm): Define R as RADIXI.
 	(norm): Likewise.
 	* sysdeps/ieee754/dbl-64/mpa2.h: Remove all static const
diff --git a/misc/sys/cdefs.h b/misc/sys/cdefs.h
index fb6c959d903..1eee54ec80c 100644
--- a/misc/sys/cdefs.h
+++ b/misc/sys/cdefs.h
@@ -378,8 +378,10 @@
 
 #if __GNUC__ >= 3
 # define __glibc_unlikely(cond) __builtin_expect((cond), 0)
+# define __glibc_likely(cond) __builtin_expect((cond), 1)
 #else
 # define __glibc_unlikely(cond) (cond)
+# define __glibc_likely(cond) (cond)
 #endif
 
 #include <bits/wordsize.h>