2006-09-07 Eric Christopher <echristo@apple.com>

[thirdparty/gcc.git] / gcc / doc / extend.texi

diff --git a/gcc/doc/extend.texi b/gcc/doc/extend.texi
index 422c4220d56097e9c12b2a0c1ebd93cfa0e8850a..9ec4460bb6ac5cdc2568b0d9c6ef484575df9590 100644 (file)
--- a/gcc/doc/extend.texi
+++ b/gcc/doc/extend.texi
@@ -6116,6 +6116,16 @@ Similar to @code{__builtin_powi}, except the argument and return types
 are @code{long double}.
 @end deftypefn
 
+@deftypefn {Built-in Function} int32_t __builtin_bswap32 (int32_t x)
+Returns @var{x} with the order of the bytes reversed; for example,
+@code{0xaabbccdd} becomes @code{0xddccbbaa}.  Byte here always means
+exactly 8 bits.
+@end deftypefn
+
+@deftypefn {Built-in Function} int64_t __builtin_bswap64 (int64_t x)
+Similar to @code{__builtin_bswap32}, except the argument and return types
+are 64-bit.
+@end deftypefn
 
 @node Target Builtins
 @section Built-in Functions Specific to Particular Target Machines