https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86841
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |ASSIGNED
Assignee|unassigned at gcc dot gnu.org |rguenth at gcc dot
gnu.org
--- Comment #3 from Richard Biener <rguenth at gcc dot gnu.org> ---
It's a problem with the VRP machinery assuming shift counts are never bigger
than 64bits...
/* Transform left shifts by constants into multiplies. */
if (wi::eq_p (vr1_lb, vr1_ub))
{
int shift = wi::extract_uhwi (vr1_ub, 0, vr1_ub.get_precision ());
wide_int tmp = wi::set_bit_in_zero (shift, prec);
return wide_int_range_multiplicative_op (res_lb, res_ub,
MULT_EXPR, sign, prec,
vr0_lb, vr0_ub, tmp, tmp,
overflow_undefined,
/*overflow_wraps=*/true);
this should use wi::to_uhwi.
