xgetbv instrinsic for 64 bit

BUG=106
TEST=untested
Review URL: https://webrtc-codereview.appspot.com/859005

git-svn-id: http://libyuv.googlecode.com/svn/trunk@389 16f28f9a-4ce2-e073-06de-1de4eb20be90

README.chromium

 Name: libyuv
 URL: http://code.google.com/p/libyuv/
-Version: 388
+Version: 389
 License: BSD
 License File: LICENSE
 

include/libyuv/version.h

@@ -11,6 +11,6 @@
 #ifndef INCLUDE_LIBYUV_VERSION_H_  // NOLINT
 #define INCLUDE_LIBYUV_VERSION_H_
 
-#define LIBYUV_VERSION 388
+#define LIBYUV_VERSION 389
 
 #endif  // INCLUDE_LIBYUV_VERSION_H_  NOLINT

source/cpu_id.cc

@@ -13,6 +13,10 @@
 #ifdef _MSC_VER
 #include <intrin.h>  // For __cpuid()
 #endif
+#if !defined(__CLR_VER) && defined(_M_X64) && \
+    defined(_MSC_VER) && (_MSC_FULL_VER >= 160040219)
+#include <immintrin.h>  // For _xgetbv()
+#endif
 
 #include <stdlib.h>  // For getenv()