re PR c++/42837 (FAIL: g++.dg/abi/packed1.C execution test)

	PR c++/42837
	* class.c (create_vtable_ptr): Set DECL_PACKED if type is packed.

From-SVN: r156885

gcc/cp/ChangeLog

 2010-02-18  Jason Merrill  <jason@redhat.com>
 
+	PR c++/42837
+	* class.c (create_vtable_ptr): Set DECL_PACKED if type is packed.
+
 	PR c++/43108
 	* typeck.c (cp_build_binary_op): Adapt mixed complex/non handling from
 	C build_binary_op.

gcc/cp/class.c

@@ -4554,6 +4554,8 @@ create_vtable_ptr (tree t, tree* virtuals_p)
       DECL_ARTIFICIAL (field) = 1;
       DECL_FIELD_CONTEXT (field) = t;
       DECL_FCONTEXT (field) = t;
+      if (TYPE_PACKED (t))
+	DECL_PACKED (field) = 1;
 
       TYPE_VFIELD (t) = field;
 

gcc/testsuite/ChangeLog

 2010-02-18  Jason Merrill  <jason@redhat.com>
 
+	PR c++/42837
+	* g++.dg/abi/packed1.C: Add expected warning.
+
 	PR c++/43108
 	* g++.dg/torture/dg-torture.exp: Run c-c++-common torture tests.
 	* gcc.dg/torture/dg-torture.exp: Likewise.

gcc/testsuite/g++.dg/abi/packed1.C

@@ -4,7 +4,7 @@
 
 extern "C" void abort ();
 
-struct INNER {
+struct INNER { // { dg-warning "inefficient.*vptr" "" { target ia64-*-* hppa*-*-* } }
   virtual int foo() const { return 1; }
 } __attribute__ ((packed));