--- gcc/calls.c.mp	2013-02-26 17:04:33.159555349 +0100
+++ gcc/calls.c	2013-02-27 10:44:02.254461200 +0100
@@ -3037,6 +3037,14 @@ expand_call (tree exp, rtx target, int i
 	    {
 	      rtx before_arg = get_last_insn ();
 
+	      /* We don't allow passing huge (> 2^30 B) arguments
+	         by value.  It would cause an overflow later on.  */
+	      if (adjusted_args_size.constant >= (1 << 30))
+	        {
+	          sorry ("passing too large argument on stack");
+		  continue;
+		}
+
 	      if (store_one_arg (&args[i], argblock, flags,
 				 adjusted_args_size.var != 0,
 				 reg_parm_stack_space)