address review comments

Author: c8ef

clang/docs/LanguageExtensions.rst

@@ -732,7 +732,7 @@ at the end to the next power of 2.
 
 These reductions support both fixed-sized and scalable vector types.
 
-The reduction intrinsics, including ``__builtin_reduce_add``,
+The integer reduction intrinsics, including ``__builtin_reduce_add``,
 ``__builtin_reduce_mul``, ``__builtin_reduce_and``, ``__builtin_reduce_or``,
 and ``__builtin_reduce_xor``, can be called in a ``constexpr`` context.