https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97346
--- Comment #8 from Richard Biener <rguenth at gcc dot gnu.org> ---
(In reply to Jan Hubicka from comment #7)
> I tested yesterday this one (which makes the lifetime bit more explicit
> - during propagation it is for dumps only). Sorry for not posting it
> earlier. I just wanted to double check tha tleak is gone.
>
> diff --git a/gcc/ipa-reference.c b/gcc/ipa-reference.c
> index 2ea2a6d5327..84c018ff57c 100644
> --- a/gcc/ipa-reference.c
> +++ b/gcc/ipa-reference.c
> @@ -458,8 +458,8 @@ ipa_init (void)
>
> ipa_init_p = true;
>
> - vec_alloc (reference_vars_to_consider, 10);
> -
> + if (dump_file)
> + vec_alloc (reference_vars_to_consider, 10);
>
> if (ipa_ref_opt_sum_summaries != NULL)
> {
> @@ -967,8 +967,12 @@ propagate (void)
> }
>
> if (dump_file)
> - vec_free (reference_vars_to_consider);
> - reference_vars_to_consider = NULL;
> + {
> + vec_free (reference_vars_to_consider);
> + reference_vars_to_consider = NULL;
> + }
> + else
> + gcc_checking_assert (!reference_vars_to_consider);
> return remove_p ? TODO_remove_functions : 0;
> }
>
> @@ -1059,6 +1063,7 @@ ipa_reference_write_optimization_summary (void)
> auto_bitmap ltrans_statics;
> int i;
>
> + gcc_checking_assert (!reference_vars_to_consider);
> vec_alloc (reference_vars_to_consider, ipa_reference_vars_uids);
> reference_vars_to_consider->safe_grow (ipa_reference_vars_uids, true);
>
> @@ -1117,7 +1122,7 @@ ipa_reference_write_optimization_summary (void)
> }
> }
> lto_destroy_simple_output_block (ob);
> - delete reference_vars_to_consider;
> + vec_free (reference_vars_to_consider);
maybe set reference_vars_to_consider to NULL here for consistency,
otherwise also looks good to me!
> }
>
> /* Deserialize the ipa info for lto. */
