[PATCH] objc: update documetation and add test-case of constructor/destructor attr.

["Martin Liška" <mliska@suse.cz>]

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Hi.

Following patch clarifies usage of ctor and dtor attributes for Objective C.
Patch survives (on x86_64-linux-gnu):

make -k check-objc RUNTESTFLAGS="execute.exp"

Ready for trunk?
Thanks,
Martin

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From 0fcb15e50905a95d8e824aed45d961b5ddc46479 Mon Sep 17 00:00:00 2001
From: marxin <mliska@suse.cz>
Date: Wed, 10 Aug 2016 11:01:49 +0200
Subject: [PATCH] objc: update documetation and add test-case of
 constructor/destructor attr.

gcc/ChangeLog:

2016-08-10  Martin Liska  <mliska@suse.cz>

	* doc/extend.texi: Remove limitation of Objective C for
	__attribute__((constructor)) and __attribute__((destructor)).

gcc/testsuite/ChangeLog:

2016-08-10  Martin Liska  <mliska@suse.cz>

	* objc/execute/construct1.m: New test.
---
 gcc/doc/extend.texi                     |  2 --
 gcc/testsuite/objc/execute/construct1.m | 11 +++++++++++
 2 files changed, 11 insertions(+), 2 deletions(-)
 create mode 100644 gcc/testsuite/objc/execute/construct1.m

diff --git a/gcc/doc/extend.texi b/gcc/doc/extend.texi
index 5697f3a..cce17aa 100644
--- a/gcc/doc/extend.texi
+++ b/gcc/doc/extend.texi
@@ -2485,8 +2485,6 @@ same priority.  The priorities for constructor and destructor
 functions are the same as those specified for namespace-scope C++
 objects (@pxref{C++ Attributes}).
 
-These attributes are not currently implemented for Objective-C@.
-
 @item deprecated
 @itemx deprecated (@var{msg})
 @cindex @code{deprecated} function attribute
diff --git a/gcc/testsuite/objc/execute/construct1.m b/gcc/testsuite/objc/execute/construct1.m
new file mode 100644
index 0000000..3de036d
--- /dev/null
+++ b/gcc/testsuite/objc/execute/construct1.m
@@ -0,0 +1,11 @@
+int i;
+
+void hello (void) __attribute__ ((constructor));
+void hello (void) { i = 1; }
+
+int main (void) {
+  if (i != 1)
+    return 1;
+
+  return 0;
+}
-- 
2.9.2