https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83388
--- Comment #4 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
(In reply to rguent...@suse.de from comment #3)
> > That said, what we are doing with the sanitizers is similar to what we are
> > doing with debug stmts, if compilation is with -flto -g and linking without
> > -g,
> > then
> > debug stmts are dropped. Likewise, IFN_*SAN* is dropped from the IL if
> > linking
> > without corresponding -fsanitize= options.
>
> Ah. So the error is about cgraph input not finding the corresponding
> GIMPLE call stmt that are referenced form a cgraph edge we input
> (e->call_stmt). This might be the case then when we drop those calls?
We only drop internal fns, lto-streamer-in.c has:
if (is_gimple_call (stmt)
&& gimple_call_internal_p (stmt))
{
switch (gimple_call_internal_fn (stmt))
{
case IFN_UBSAN_NULL:
if ((flag_sanitize
& (SANITIZE_NULL | SANITIZE_ALIGNMENT)) == 0)
remove = true;
etc.
Now, ifns shouldn't have any cgraph edges, should they?
