From: Kai Tietz <ktietz@redhat.com>
Date: Thu, 19 Jan 2012 23:07:01 +0000 (+0100)
Subject: Backmerged from trunk PR c++/51344
X-Git-Tag: releases/gcc-4.4.7~100
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=af765cc21b0a82c4540600f6a6abded92a5f0654;p=thirdparty%2Fgcc.git

Backmerged from trunk PR c++/51344

        Backmerged from trunk
        PR c++/51344
        * decl2.c (save_template_attributes): Use merge_attributes
        instead of chaining up via TREE_CHAIN.

        * g++.dg/torture/pr51344.C: New test.

From-SVN: r183319
---

diff --git a/gcc/cp/ChangeLog b/gcc/cp/ChangeLog
index 7276a3f2d63f..74c04922edd1 100644
--- a/gcc/cp/ChangeLog
+++ b/gcc/cp/ChangeLog
@@ -1,3 +1,9 @@
+2012-01-19  Kai Tietz  <ktietz@redhat.com>
+
+	PR c++/51344
+	* decl2.c (save_template_attributes): Use merge_attributes
+	instead of chaining up via TREE_CHAIN.
+
 2011-10-19  Jason Merrill  <jason@redhat.com>
 
 	PR c++/50793
diff --git a/gcc/cp/decl2.c b/gcc/cp/decl2.c
index 7bfe77370112..744209e87ecc 100644
--- a/gcc/cp/decl2.c
+++ b/gcc/cp/decl2.c
@@ -1152,9 +1152,9 @@ save_template_attributes (tree *attr_p, tree *decl_p)
 
   old_attrs = *q;
 
-  /* Place the late attributes at the beginning of the attribute
+  /* Merge the late attributes at the beginning with the attribute
      list.  */
-  TREE_CHAIN (tree_last (late_attrs)) = *q;
+  late_attrs = merge_attributes (late_attrs, *q);
   *q = late_attrs;
 
   if (!DECL_P (*decl_p) && *decl_p == TYPE_MAIN_VARIANT (*decl_p))
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 088b119e308c..16e3d730a314 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,7 @@
+2012-01-19  Kai Tietz  <ktietz@redhat.com>
+
+	* g++.dg/torture/pr51344.C: New test.
+
 2012-01-15  Uros Bizjak  <ubizjak@gmail.com>
 
 	PR rtl-optimization/51821
diff --git a/gcc/testsuite/g++.dg/torture/pr51344.C b/gcc/testsuite/g++.dg/torture/pr51344.C
new file mode 100644
index 000000000000..482c0fae0651
--- /dev/null
+++ b/gcc/testsuite/g++.dg/torture/pr51344.C
@@ -0,0 +1,9 @@
+/* { dg-do compile } */
+template <class T>
+class B
+{
+  friend __attribute__((cdecl)) A& operator >>(A& a, B& b)
+  {
+    return a;
+  }
+};