From 7480a39b770374d5355c60804dd8cc99a8a65a83 Mon Sep 17 00:00:00 2001
From: Ian Lance Taylor <ian@gcc.gnu.org>
Date: Fri, 30 May 2014 13:53:58 +0000
Subject: [PATCH] runtime: Use _mm_pause rather than __builtin_ia32_pause.

Based on a patch from Peter Collingbourne.

From-SVN: r211081
---
 libgo/runtime/yield.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/libgo/runtime/yield.c b/libgo/runtime/yield.c
index 5c47719d48f7..442d346db7d8 100644
--- a/libgo/runtime/yield.c
+++ b/libgo/runtime/yield.c
@@ -14,6 +14,10 @@
 #include <sys/select.h>
 #endif
 
+#if defined (__i386__) || defined (__x86_64__)
+#include <xmmintrin.h>
+#endif
+
 #include "runtime.h"
 
 /* Spin wait.  */
@@ -26,7 +30,7 @@ runtime_procyield (uint32 cnt)
   for (i = 0; i < cnt; ++i)
     {
 #if defined (__i386__) || defined (__x86_64__)
-      __builtin_ia32_pause ();
+      _mm_pause ();
 #endif
     }
 }
-- 
2.47.3