From fb082e3293d45d928ae107d8f351b04be89d1bc2 Mon Sep 17 00:00:00 2001 From: Martin Liska Date: Mon, 9 Jan 2023 09:51:01 +0100 Subject: [PATCH] hash: do not insert deleted value to a hash_set PR lto/108330 gcc/ChangeLog: * lto-cgraph.cc (compute_ltrans_boundary): Do not insert NULL (deleleted value) to a hash_set. gcc/testsuite/ChangeLog: * g++.dg/ipa/pr108830.C: New test. --- gcc/lto-cgraph.cc | 3 ++- gcc/testsuite/g++.dg/ipa/pr108830.C | 20 ++++++++++++++++++++ 2 files changed, 22 insertions(+), 1 deletion(-) create mode 100644 gcc/testsuite/g++.dg/ipa/pr108830.C diff --git a/gcc/lto-cgraph.cc b/gcc/lto-cgraph.cc index eef5ea1d0618..805c7855eb30 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 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 000000000000..96656f67e4f6 --- /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); +} -- 2.47.2