Copy code example for fetch and nand from "Legacy __sync Built-in
Functions for Atomic Memory Access" to "Built-in Functions for Memory
Model Aware Atomic Operations".
gcc/
* doc/extend.texi (Built-in Functions for Memory Model Aware
Atomic Operations): Document atomic fetch and nand.
---
gcc/doc/extend.texi | 2 ++
1 file changed, 2 insertions(+)
diff --git a/gcc/doc/extend.texi b/gcc/doc/extend.texi
index 7f33be4f29c..f2a61e4c4f8 100644
--- a/gcc/doc/extend.texi
+++ b/gcc/doc/extend.texi
@@ -11008,6 +11008,7 @@ they are not scaled by the size of the type to which
the pointer points.
@smallexample
@{ *ptr @var{op}= val; return *ptr; @}
+@{ *ptr = ~(*ptr & val); return *ptr; @} // nand
@end smallexample
The object pointed to by the first argument must be of integer or pointer
@@ -11029,6 +11030,7 @@ the type to which the pointer points.
@smallexample
@{ tmp = *ptr; *ptr @var{op}= val; return tmp; @}
+@{ tmp = *ptr; *ptr = ~(*ptr & val); return tmp; @} // nand
@end smallexample
The same constraints on arguments apply as for the corresponding
--
2.16.4
