+ PR c++/51928 + * class.c (set_method_tm_attributes): Use TARGET_THUNK instead...

+       PR c++/51928
+       * class.c (set_method_tm_attributes): Use TARGET_THUNK instead of
+       thunk for set_one_vmethod_tm_attributes.


Co-Authored-By: Patrick Marlier <patrick.marlier@gmail.com>

From-SVN: r183478

gcc/cp/ChangeLog

+2012-01-24  Aldy Hernandez  <aldyh@redhat.com>
+	    Patrick Marlier  <patrick.marlier@gmail.com>
+
+	PR c++/51928
+	* class.c (set_method_tm_attributes): Use TARGET_THUNK instead of
+	thunk for set_one_vmethod_tm_attributes.
+
 2012-01-24  Paolo Carlini  <paolo.carlini@oracle.com>
 
 	PR c++/51223

gcc/cp/class.c

@@ -4430,7 +4430,12 @@ set_method_tm_attributes (tree t)
       tree vchain;
       for (vchain = BINFO_VIRTUALS (TYPE_BINFO (t)); vchain;
 	   vchain = TREE_CHAIN (vchain))
-	set_one_vmethod_tm_attributes (t, BV_FN (vchain));
+	{
+	  fndecl = BV_FN (vchain);
+	  if (DECL_THUNK_P (fndecl))
+	    fndecl = THUNK_TARGET (fndecl);
+	  set_one_vmethod_tm_attributes (t, fndecl);
+	}
     }
 
   /* If the class doesn't have an attribute, nothing more to do.  */

gcc/testsuite/g++.dg/tm/pr51928.C

+/* { dg-do compile } */
+/* { dg-options "-fgnu-tm" } */
+
+struct A; // { dg-error "forward declaration of 'struct A'" }
+
+struct B
+{
+  virtual B* foo(A);
+};
+
+struct C : virtual B
+{
+  virtual C* foo(A) { return 0; } // { dg-error "'<anonymous>' has incomplete type" }
+};
+
+C c;