https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83778
--- Comment #1 from David Malcolm <dmalcolm at gcc dot gnu.org> ---
It does look like an issue with r256448, but I haven't been able to reproduce
it here yet.
There are 3 in-tree copies of get_element_number, in 3 backends; each has 2
users per backend; they all look like:
static int
get_element_number (tree vec_type, tree arg)
{
unsigned HOST_WIDE_INT elt, max = TYPE_VECTOR_SUBPARTS (vec_type) - 1;
if (!tree_fits_uhwi_p (arg)
|| (elt = tree_to_uhwi (arg), elt > max))
{
error ("selector must be an integer constant in the range 0..%wi", max);
return 0;
}
return elt;
}
which is going to fail if a location wrapper node around a INTEGER_CST is
passed for ARG, rather than a plain INTEGER_CST.
