re PR c++/49355 (new T({""}) crashes G++ when struct T { std::string foobar };)

	PR c++/49355
	* tree.c (stabilize_init): Handle aggregate initialization.

From-SVN: r175736

gcc/cp/ChangeLog

 2011-06-30  Jason Merrill  <jason@redhat.com>
 
+	PR c++/49355
+	* tree.c (stabilize_init): Handle aggregate initialization.
+
 	PR c++/48481
 	* name-lookup.c (struct arg_lookup): Add fn_set.
 	(add_function): Check it.

gcc/cp/tree.c

@@ -3291,10 +3291,18 @@ stabilize_init (tree init, tree *initp)
     t = TARGET_EXPR_INITIAL (t);
   if (TREE_CODE (t) == COMPOUND_EXPR)
     t = expr_last (t);
-  if (TREE_CODE (t) == CONSTRUCTOR
-      && EMPTY_CONSTRUCTOR_P (t))
-    /* Default-initialization.  */
-    return true;
+  if (TREE_CODE (t) == CONSTRUCTOR)
+    {
+      /* Aggregate initialization: stabilize each of the field
+	 initializers.  */
+      unsigned i;
+      tree value;
+      bool good = true;
+      FOR_EACH_CONSTRUCTOR_VALUE (CONSTRUCTOR_ELTS (t), i, value)
+	if (!stabilize_init (value, initp))
+	  good = false;
+      return good;
+    }
 
   /* If the initializer is a COND_EXPR, we can't preevaluate
      anything.  */

gcc/testsuite/ChangeLog

+2011-06-30  Jason Merrill  <jason@redhat.com>
+
+	PR c++/49355
+	* g++.dg/cpp0x/initlist54.C: New.
+
 2011-06-30  Martin Jambor  <mjambor@suse.cz>
 
 	* gcc.dg/tree-ssa/sra-12.c: New test.

gcc/testsuite/g++.dg/cpp0x/initlist54.C

+// PR c++/49355
+// { dg-options -std=c++0x }
+
+#include <string>
+
+struct T {
+  std::string foobar;
+};
+
+int main()
+{
+  T* x = new T({""});
+}