From: Hans Kristian Rosbach <hk-git@circlestorm.org>
Date: Sun, 24 May 2015 17:53:41 +0000 (+0200)
Subject: Add likely/unlikely support for ICC and Clang
X-Git-Tag: 1.9.9-b1~805
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=906dc2a07d1f6158755e1153032f7dc2e61fe17e;p=thirdparty%2Fzlib-ng.git

Add likely/unlikely support for ICC and Clang
---

diff --git a/zutil.h b/zutil.h
index 50565cacc..0cb923fe5 100644
--- a/zutil.h
+++ b/zutil.h
@@ -160,7 +160,7 @@ void ZLIB_INTERNAL  zcfree  (void *opaque, void *ptr);
 #endif /* ZSWAP32 */
 
 /* Only enable likely/unlikely if the compiler is known to support it */
-#if defined(__GNUC__) && (__GNUC__ >= 3)
+#if (defined(__GNUC__) && (__GNUC__ >= 3)) || defined(__INTEL_COMPILER) || defined(__Clang__)
 #  ifndef likely
 #    define likely(x)      __builtin_expect(!!(x),1)
 #  endif