Revert patches

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

diff --git a/gcc/doc/extend.texi b/gcc/doc/extend.texi
index a6d25b5b618cfdf9a71ad96b9ed844dabef68d22..5a026c4b48cee57e361c1d34bfd3b582149bb2fa 100644 (file)
--- a/gcc/doc/extend.texi
+++ b/gcc/doc/extend.texi
@@ -17839,7 +17839,6 @@ Disable global interrupt.
 * Basic PowerPC Built-in Functions Available on ISA 2.07::
 * Basic PowerPC Built-in Functions Available on ISA 3.0::
 * Basic PowerPC Built-in Functions Available on ISA 3.1::
-* Basic Built-in Functions that may be available on future PowerPCs::
 @end menu
 
 This section describes PowerPC built-in functions that do not require
@@ -18497,29 +18496,6 @@ ISA 3.1 @code{stxvrbx}, @code{stxvrhx}, @code{stxvrwx}, and @code{stxvrdx}
 instructions.
 @findex vec_xst_trunc
 
-@node Basic Built-in Functions that may be available on future PowerPCs
-@subsubsection Potential future PowerPC Built-in Functions
-
-The built-in functions described in this section may be available on
-future PowerPC processors.  At present, these built-ins exist to
-allowing testing of new instructions.  There is no guarantee that
-these instructions will actually be implemented.
-
-The following built-in functions are available on Linux 64-bit systems
-that use a potential future instruction set (@option{-mcpu=future}):
-
-@table @code
-@item int __builtin_saturate_subtract32 (int, int)
-Subtract the second operand from the first operand.  If the value
-would be less than 0, then the result is 0 instead of the negative
-value of the subtraction.
-
-@item long __builtin_saturate_subtract64 (long, long)
-Subtract the second operand from the first operand.  If the value
-would be less than 0, then the result is 0 instead of the negative
-value of the subtraction.
-@end table
-
 @node PowerPC AltiVec/VSX Built-in Functions
 @subsection PowerPC AltiVec/VSX Built-in Functions