My guess would be that some of the code for handling va_list being an array is needed in the case of generating a trap as well.
if (TREE_CODE (have_va_type) == ARRAY_TYPE)
{
if (TREE_CODE (TREE_TYPE (valist)) == ARRAY_TYPE)
{
tree p1 = build_pointer_type (TREE_TYPE (have_va_type));
valist = build_fold_addr_expr_with_type (valist, p1);
}
}
(before gimplify_and_add (valist, pre_p);).
--
Joseph S. Myers
jos...@codesourcery.com
