re PR c++/33324 (ICE on new array of objects with virtual destructors.)

	PR c++/33324
	* init.c (build_new_1):  Use POINTER_PLUS_EXPR instead of MINUS_EXPR
	to calculate cookie_ptr.

From-SVN: r128312

gcc/cp/ChangeLog

+2007-09-09  David Daney  <ddaney@avtrex.com>
+
+	PR c++/33324
+	* init.c (build_new_1):  Use POINTER_PLUS_EXPR instead of MINUS_EXPR
+	to calculate cookie_ptr.
+
 2007-09-08  Jason Merrill  <jason@redhat.com>
 
 	PR c++/33342

gcc/cp/init.c

@@ -1930,8 +1930,10 @@ build_new_1 (tree placement, tree type, tree nelts, tree init,
       if (targetm.cxx.cookie_has_size ())
 	{
 	  /* Also store the element size.  */
-	  cookie_ptr = build2 (MINUS_EXPR, build_pointer_type (sizetype),
-			       cookie_ptr, size_in_bytes (sizetype));
+	  cookie_ptr = build2 (POINTER_PLUS_EXPR, size_ptr_type, cookie_ptr,
+			       fold_build1 (NEGATE_EXPR, sizetype,
+					    size_in_bytes (sizetype)));
+
 	  cookie = build_indirect_ref (cookie_ptr, NULL);
 	  cookie = build2 (MODIFY_EXPR, sizetype, cookie,
 			   size_in_bytes(elt_type));