docs: Add @cindex for some attributes

While looking for the access attribute,
I tried to find it via the concept index but it was
missing. This patch fixes that and adds one for
interrupt/interrupt_handler too.

Committed as obvious after building the HTML docs
and looking at the resulting concept index page.

gcc/ChangeLog:

	* doc/extend.texi (access attribute): Add
	cindex for it.
	(interrupt/interrupt_handler attribute):
	Likewise.

diff --git a/gcc/doc/extend.texi b/gcc/doc/extend.texi
index 3040a9bdea65d27f8d20572b4ed37375f5fe949b..05afd9ae3d9edff677a0197ad3b45719758ec0e7 100644 (file)
--- a/gcc/doc/extend.texi
+++ b/gcc/doc/extend.texi
@@ -2573,6 +2573,7 @@ The following attributes are supported on most targets.
 @table @code
 @c Keep this table alphabetized by attribute name.  Treat _ as space.
 
+@cindex @code{access} function attribute
 @item access (@var{access-mode}, @var{ref-index})
 @itemx access (@var{access-mode}, @var{ref-index}, @var{size-index})
 
@@ -3339,6 +3340,8 @@ int S::interface (int) __attribute__ ((ifunc ("_ZN1S8resolverEv")));
 Indirect functions cannot be weak.  Binutils version 2.20.1 or higher
 and GNU C Library version 2.11.1 are required to use this feature.
 
+@cindex @code{interrupt_handler} function attribute
+@cindex @code{interrupt} function attribute
 @item interrupt
 @itemx interrupt_handler
 Many GCC back ends support attributes to indicate that a function is