[DOC PATCH]: Document new __float128 x86_64 builtin functions

["Uros Bizjak" <ubizjak@gmail.com>]

[-- Attachment #1: Type: text/plain, Size: 342 bytes --]

Hello!

This doc patch adds the documentation about newly introduced
__float128 x86_64 built-in functions.

Patch was tested by 'make doc'. OK for mainline?

2007-06-08  Uros Bizjak  <ubizjak@gmail.com>

	* doc/extend.texi (X86 Built-in Functions): Document __builtin_fabsq,
	__builtin_copysignq and __builtin_infq built-in functions.

Uros.

[-- Attachment #2: doc-copysignq.diff.txt --]
[-- Type: text/plain, Size: 1153 bytes --]

Index: extend.texi
===================================================================
--- extend.texi	(revision 125566)
+++ extend.texi	(working copy)
@@ -7034,6 +7034,26 @@
 entire vector register, interpreting it as a 128-bit integer, these use mode
 @code{TI}.
 
+In the 64-bit mode, x86-64 family of processors uses additional built-in
+functions for efficient use of @code{TF} (@code{__float128}) 128-bit
+floating point and @code{TC} 128-bit complex floating point values.
+
+The following floating point built-in functions are made available in the
+64-bit mode.  All of them implement the function that is part of the name.
+
+@smallexample
+__float128 __builtin_fabsq (__float128)
+__float128 __builtin_copysignq (__float128, __float128)
+@end smallexample
+
+The following floating point built-in functions are made available in the
+64-bit mode.
+
+@table @code
+@item __float128 __builtin_infq (void)
+Similar to @code{__builtin_inf}, except the return type is @code{__float128}.
+@end table
+
 The following built-in functions are made available by @option{-mmmx}.
 All of them generate the machine instruction that is part of the name.