diff options
Diffstat (limited to 'gcc/doc/extend.texi')
| -rw-r--r-- | gcc/doc/extend.texi | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/gcc/doc/extend.texi b/gcc/doc/extend.texi index 6e27029..a5a8b23 100644 --- a/gcc/doc/extend.texi +++ b/gcc/doc/extend.texi @@ -954,9 +954,13 @@ typedef _Complex float __attribute__((mode(TC))) _Complex128; typedef _Complex float __attribute__((mode(XC))) _Complex80; @end smallexample -On PowerPC 64-bit Linux systems there are currently problems in using -the complex @code{__float128} type. When these problems are fixed, -you would use: +In order to use @code{__float128} and @code{__ibm128} on PowerPC Linux +systems, you must use the @option{-mfloat128}. It is expected in +future versions of GCC that @code{__float128} will be enabled +automatically. In addition, there are currently problems in using the +complex @code{__float128} type. When these problems are fixed, you +would use the following syntax to declare @code{_Complex128} to be a +complex @code{__float128} type: @smallexample typedef _Complex float __attribute__((mode(KC))) _Complex128; |