Add _mm_pause and _MM_SHUFFLE

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@61434 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Headers/emmintrin.devel.h b/lib/Headers/emmintrin.devel.h
index 6d5618a..7715a7a 100644
--- a/lib/Headers/emmintrin.devel.h
+++ b/lib/Headers/emmintrin.devel.h
@@ -1104,6 +1104,13 @@
   return (__m128d)in;
 }
 
+static inline void __attribute__((__always_inline__)) _mm_pause(void)
+{
+  asm("pause");
+}
+
+#define _MM_SHUFFLE(x, y) (((x) << 1) | (y))
+
 #endif /* __SSE2__ */
 
 #endif /* __EMMINTRIN_H */