(gen_stdcall_suffix): Round parameter size up to

	PARM_BOUNDARY.

From-SVN: r12608

gcc/config/i386/winnt.c

@@ -48,7 +48,13 @@ gen_stdcall_suffix (decl)
 
 	while (TREE_VALUE (formal_type) != void_type_node)
 	  {
-            total += TREE_INT_CST_LOW (TYPE_SIZE (TREE_VALUE (formal_type)));
+	    int parm_size
+	      = TREE_INT_CST_LOW (TYPE_SIZE (TREE_VALUE (formal_type)));
+	    /* Must round up to include padding.  This is done the same
+	       way as in store_one_arg.  */
+	    parm_size = ((parm_size + PARM_BOUNDARY - 1)
+			 / PARM_BOUNDARY * PARM_BOUNDARY);
+	    total += parm_size;
 	    formal_type = TREE_CHAIN (formal_type);
 	  }
       }