Hi,
in PR 81702, both me and Honza came to the conclusion that the assert
that is being hit can be removed if it is indeed OK that a particular
variable is constructed without a DECL_INITIAL. Yesterday Nathan
confirmed that in this case it is fine. So the patch below removes
the assert.
Bootstrapped and tested on x86_64-linux, I will commit it to teunk as
pre-approved in Bugzilla in a few moments. I will commit it tomorrow
to the gcc-7-branch after testing it there too.
Thanks,
Martin
2017-10-31 Martin Jambor <mjam...@suse.cz>
PR c++/81702
* gimple-fold.c (gimple_get_virt_method_for_vtable): Remove assert.
testsuite/
* g++.dg/tree-ssa/pr81702.C: New test.
---
gcc/gimple-fold.c | 1 -
gcc/testsuite/g++.dg/tree-ssa/pr81702.C | 110 ++++++++++++++++++++++++++++++++
2 files changed, 110 insertions(+), 1 deletion(-)
create mode 100644 gcc/testsuite/g++.dg/tree-ssa/pr81702.C
diff --git a/gcc/gimple-fold.c b/gcc/gimple-fold.c
index cb33c1e09fe..85fd3971946 100644
--- a/gcc/gimple-fold.c
+++ b/gcc/gimple-fold.c
@@ -6586,7 +6586,6 @@ gimple_get_virt_method_for_vtable (HOST_WIDE_INT token,
gcc_assert (init);
if (init == error_mark_node)
{
- gcc_assert (in_lto_p);
/* Pass down that we lost track of the target. */
if (can_refer)
*can_refer = false;
diff --git a/gcc/testsuite/g++.dg/tree-ssa/pr81702.C
b/gcc/testsuite/g++.dg/tree-ssa/pr81702.C
new file mode 100644
index 00000000000..85acd857e67
--- /dev/null
+++ b/gcc/testsuite/g++.dg/tree-ssa/pr81702.C
@@ -0,0 +1,110 @@
+// { dg-do compile }
+// { dg-options "-O2" }
+
+namespace std {
+ struct type_info
+ {
+ virtual bool __do_catch(const type_info *__thr_type, void **__thr_obj,
+ unsigned __outer) const;
+ };
+}
+
+template< typename VALUE_T, typename TYPE >
+struct List_policy
+{
+ typedef VALUE_T *Value_type;
+ typedef TYPE **Type;
+ typedef TYPE *Head_type;
+ typedef TYPE Item_type;
+};
+
+template< typename POLICY >
+class List
+{
+public:
+ typedef typename POLICY::Value_type Value_type;
+ class Iterator
+ {
+ typedef typename POLICY::Type Internal_type;
+ public:
+ typedef typename POLICY::Value_type value_type;
+ typedef typename POLICY::Value_type Value_type;
+ Value_type operator -> () const { return static_cast<Value_type>(*_c); }
+ Internal_type _c;
+ };
+ Iterator begin() { return Iterator(); }
+ Iterator end() { return Iterator(); }
+ typename POLICY::Head_type _f;
+};
+
+template<typename ELEM_TYPE> class H_list_item_t { };
+
+template< typename T, typename POLICY >
+class H_list : public List<POLICY>
+{
+public:
+ typedef typename POLICY::Item_type Item;
+ typedef List<POLICY> Base;
+ typedef typename Base::Iterator Iterator;
+ Iterator insert(T *e, Iterator const &pred)
+ {
+ Item **x = &this->_f;
+ *x = static_cast<Item*>(e);
+ return Iterator();
+ }
+};
+
+template< typename T >
+struct H_list_t : H_list<T, List_policy< T, H_list_item_t<T> > >
+{
+ H_list_t(bool b) : H_list<T, List_policy< T, H_list_item_t<T> > >(b) {}
+};
+
+template< typename BASE, typename MATCH_RESULT >
+struct Type_matcher : H_list_item_t<BASE>
+{
+ explicit Type_matcher(std::type_info const *type);
+ typedef MATCH_RESULT Match_result;
+
+private:
+ std::type_info *_type;
+ typedef H_list_t<BASE> List;
+ typedef typename List::Iterator Iterator;
+ static List _for_type;
+};
+
+template< typename BASE, typename MR >
+Type_matcher<BASE, MR>::Type_matcher(std::type_info const *t)
+{
+ Iterator c = _for_type.begin();
+ t->__do_catch(c->_type, 0, 0);
+ _for_type.insert(static_cast<BASE*>(this), _for_type.begin());
+}
+
+template< typename VI, typename HW >
+class Fa : public Type_matcher<Fa<VI, HW>, VI*>
+{
+public:
+ typedef Fa<VI, HW> Self;
+ virtual VI *do_match(HW *f) = 0;
+ explicit Fa(std::type_info const *type) : Type_matcher<Self, VI*>(type) {}
+};
+
+class Res {};
+typedef Fa<Res, Res> R_fac;
+
+template< typename VI, typename HW_BASE, typename HW, typename BASE >
+class Fa_t : public BASE
+{
+public:
+ Fa_t() : BASE(&typeid(HW)) {}
+ VI *do_match(HW_BASE *) { return 0; }
+};
+
+template< typename VI, typename HW >
+class Resource_factory_t : public Fa_t<VI, Res, HW, R_fac > {};
+
+class Foo {};
+class Foo2;
+class Foo3 : public Res {};
+Resource_factory_t<Foo3, Foo> _x;
--
2.14.2
