[PATCH 1/2] __builtin_bswapXX: improve docs and tests

[Oscar Gustafsson]

ChangeLog:

    * doc/extend.texi: Improve example for __builtin_swap16.

---

diff --git a/gcc/doc/extend.texi b/gcc/doc/extend.texi
index ec9bb59900c..83f6e45170b 100644
--- a/gcc/doc/extend.texi
+++ b/gcc/doc/extend.texi
@@ -16338,7 +16338,7 @@ Returns the first argument raised to the power of
the second.  Unlike the

 @defbuiltin{uint16_t __builtin_bswap16 (uint16_t @var{x})}
 Returns @var{x} with the order of the bytes reversed; for example,
-@code{0xaabb} becomes @code{0xbbaa}.  Byte here always means
+@code{0xabcd} becomes @code{0xcdab}.  Byte here always means
 exactly 8 bits.
 @enddefbuiltin