ICF: fix memory leak

gcc/ChangeLog:

	PR ipa/99003
	* ipa-icf.c (sem_item::add_reference): Fix memory leak when
	a reference exists.

diff --git a/gcc/ipa-icf.c b/gcc/ipa-icf.c
index 435f567d72e6a3ceae193587ff21f66361891a95..687ad8d45b70c5b1fea66f6f6db23b1a11ab205d 100644 (file)
--- a/gcc/ipa-icf.c
+++ b/gcc/ipa-icf.c
@@ -165,8 +165,11 @@ sem_item::add_reference (ref_map *refs,
   unsigned index = reference_count++;
   bool existed;
 
-  vec<sem_item *> &v
-    = refs->get_or_insert (new sem_usage_pair (target, index), &existed);
+  sem_usage_pair *pair = new sem_usage_pair (target, index);
+  vec<sem_item *> &v = refs->get_or_insert (pair, &existed);
+  if (existed)
+    delete pair;
+
   v.safe_push (this);
   bitmap_set_bit (target->usage_index_bitmap, index);
   refs_set.add (target->node);