[Bug lto/79061] [7 Regression][LTO][ASAN] LTO plus ASAN fails with "AddressSanitizer: initialization-order-fiasco"

[m.ostapenko at samsung dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79061

--- Comment #10 from Maxim Ostapenko <m.ostapenko at samsung dot com> ---
Yeah, but it seems that lto doesn't propagate source location either:

/* Output info about new location into bitpack BP.
   After outputting bitpack, lto_output_location_data has
   to be done to output actual data.  */

void
lto_output_location (struct output_block *ob, struct bitpack_d *bp,
                     location_t loc)
{
  expanded_location xloc;

  loc = LOCATION_LOCUS (loc);
  bp_pack_int_in_range (bp, 0, RESERVED_LOCATION_COUNT,
                        loc < RESERVED_LOCATION_COUNT
                        ? loc : RESERVED_LOCATION_COUNT);
  if (loc < RESERVED_LOCATION_COUNT)
    return;

[...]
}

where RESERVED_LOCATION_COUNT == 2. Or maybe I missed something?
We can probably teach it to propagate source location but is it OK for current
stage?