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-rw-r--r--gcc/lto-cgraph.cc3
-rw-r--r--gcc/testsuite/g++.dg/ipa/pr108830.C20
2 files changed, 22 insertions, 1 deletions
diff --git a/gcc/lto-cgraph.cc b/gcc/lto-cgraph.cc
index eef5ea1..805c785 100644
--- a/gcc/lto-cgraph.cc
+++ b/gcc/lto-cgraph.cc
@@ -918,7 +918,8 @@ compute_ltrans_boundary (lto_symtab_encoder_t in_encoder)
vec <cgraph_node *>targets
= possible_polymorphic_call_targets
(edge, &final, &cache_token);
- if (!reachable_call_targets.add (cache_token))
+ if (cache_token != NULL
+ && !reachable_call_targets.add (cache_token))
{
for (i = 0; i < targets.length (); i++)
{
diff --git a/gcc/testsuite/g++.dg/ipa/pr108830.C b/gcc/testsuite/g++.dg/ipa/pr108830.C
new file mode 100644
index 0000000..96656f6
--- /dev/null
+++ b/gcc/testsuite/g++.dg/ipa/pr108830.C
@@ -0,0 +1,20 @@
+// PR lto/108330
+// { dg-do compile }
+
+class A {
+ virtual unsigned long m_fn1() const;
+ virtual int &m_fn2(unsigned long) const;
+};
+class C : A {
+public:
+ int &m_fn2(unsigned long) const;
+ unsigned long m_fn1() const;
+};
+class B {
+ void m_fn3(const A &, const int &, const C &, int &) const;
+};
+void B::m_fn3(const A &, const int &, const C &, int &) const {
+ C &a(a);
+ for (long b = 0; a.m_fn1(); b++)
+ a.m_fn2(0);
+}