https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65028
--- Comment #55 from H.J. Lu <hjl.tools at gmail dot com> ---
Another issue is propagate_constants_accross_call has
for (; (i < args_count) && (i < parms_count); i++)
{
struct ipa_jump_func *jump_func = ipa_get_ith_jump_func (args, i);
struct ipcp_param_lattices *dest_plats;
dest_plats = ipa_get_parm_lattices (callee_info, i);
if (availability == AVAIL_INTERPOSABLE)
ret |= set_all_contains_variable (dest_plats);
else
{
ret |= propagate_scalar_accross_jump_function (cs, jump_func,
&dest_plats->itself);
ret |= propagate_context_accross_jump_function (cs, jump_func, i,
&dest_plats->ctxlat);
ret |= propagate_alignment_accross_jump_function (cs, jump_func,
dest_plats);
ret |= propagate_aggs_accross_jump_function (cs, jump_func,
dest_plats);
}
}
Even if availability == AVAIL_INTERPOSABLE, alignment from jump_func
is used if the function isn't preempted at run-time. Shouldn't it
call propagate_alignment_accross_jump_function unconditionally?
