diff --git a/clang/docs/LanguageExtensions.rst b/clang/docs/LanguageExtensions.rst
--- a/clang/docs/LanguageExtensions.rst
+++ b/clang/docs/LanguageExtensions.rst
@@ -452,12 +452,13 @@
 
   v4si vsi = (v4si){1, 2, 3, 4};
   float4 vf = (float4)(1.0f, 2.0f, 3.0f, 4.0f);
+  #ifdef __VEC__
   vector int vi1 = (vector int)(1);    // vi1 will be (1, 1, 1, 1).
   vector int vi2 = (vector int){1};    // vi2 will be (1, 0, 0, 0).
   vector int vi3 = (vector int)(1, 2); // error
   vector int vi4 = (vector int){1, 2}; // vi4 will be (1, 2, 0, 0).
   vector int vi5 = (vector int)(1, 2, 3, 4);
-  float4 vf = (float4)((float2)(1.0f, 2.0f), (float2)(3.0f, 4.0f));
+  #endif
 
 Vector Operations
 -----------------