[Bug ipa/65059] [5 Regression] Chrome LTO: lto1: internal compiler error: in ipa_comdats, at ipa-comdats.c:360

[hubicka at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65059

--- Comment #1 from Jan Hubicka <hubicka at gcc dot gnu.org> ---
Does the following help?
Index: ipa-comdats.c
===================================================================
--- ipa-comdats.c       (revision 220606)
+++ ipa-comdats.c       (working copy)
@@ -328,9 +328,14 @@ ipa_comdats (void)

   FOR_EACH_DEFINED_SYMBOL (symbol)
     {
+      struct cgraph_node *fun;
       symbol->aux = NULL; 
       if (!symbol->get_comdat_group ()
          && !symbol->alias
+         /* Thunks to external functions do not need to be categorized.  */
+         && (!(fun = dyn_cast <cgraph_node *> (symbol))
+             || !fun->thunk.thunk_p
+             || fun->function_symbol ()->definition)
          && symbol->real_symbol_p ())
        {
          tree *val = map.get (symbol);