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Fix memory leak in ipa-refernece

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2021-02-14  Jan Hubicka  <hubicka@ucw.cz>
	    Richard Biener  <rguether@suse.de>

	PR ipa/97346
	* ipa-reference.c (ipa_init): Only conditinally initialize
	reference_vars_to_consider.
	(propagate): Conditionally deninitialize reference_vars_to_consider.
	(ipa_reference_write_optimization_summary): Sanity check that
	reference_vars_to_consider is not allocated.
This commit is contained in:
Jan Hubicka 2021-02-14 23:24:44 +01:00
parent 4e3590d06c
commit 9966699d7a
1 changed files with 11 additions and 5 deletions
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16
gcc/ipa-reference.c
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@ -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 +1122,8 @@ ipa_reference_write_optimization_summary (void)
}
}
lto_destroy_simple_output_block (ob);
delete reference_vars_to_consider;
vec_free (reference_vars_to_consider);
reference_vars_to_consider = NULL;
}
/* Deserialize the ipa info for lto. */