[Bug c++/64314] New: [5 Regression] ICE in record_reference, at cgraphbuild.c:87

[larsbj at gullik dot net]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64314

            Bug ID: 64314
           Summary: [5 Regression] ICE in record_reference,  at
                    cgraphbuild.c:87
           Product: gcc
           Version: 5.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: larsbj at gullik dot net

Compiling this:

#include <string>
enum profile_type {};
struct A {
  std::string value;
};
struct {
  profile_type type;
  A strategies[1];
} a{};


with:

g++ -std=gnu++1 -c
(g++ (GCC) 5.0.0 20141215 (experimental) as of r218745)

Results in:

cc1plus: internal compiler error: in record_reference, at cgraphbuild.c:87
0x768273 record_reference
        ../../gcc/gcc/cgraphbuild.c:87
0xc2dda3 walk_tree_1(tree_node**, tree_node* (*)(tree_node**, int*, void*),
void*, hash_set<tree_node*, default_hashset_traits>*, tree_node*
(*)(tree_node**, int*, tree_node* (*)(tree_node**, int*, void*), void*,
hash_set<tree_node*, default_hashset_traits>*))
        ../../gcc/gcc/tree.c:11022
0xc2e105 walk_tree_1(tree_node**, tree_node* (*)(tree_node**, int*, void*),
void*, hash_set<tree_node*, default_hashset_traits>*, tree_node*
(*)(tree_node**, int*, tree_node* (*)(tree_node**, int*, void*), void*,
hash_set<tree_node*, default_hashset_traits>*))
        ../../gcc/gcc/tree.c:11219
0xc2e0a5 walk_tree_1(tree_node**, tree_node* (*)(tree_node**, int*, void*),
void*, hash_set<tree_node*, default_hashset_traits>*, tree_node*
(*)(tree_node**, int*, tree_node* (*)(tree_node**, int*, void*), void*,
hash_set<tree_node*, default_hashset_traits>*))
        ../../gcc/gcc/tree.c:11099
0xc2e0a5 walk_tree_1(tree_node**, tree_node* (*)(tree_node**, int*, void*),
void*, hash_set<tree_node*, default_hashset_traits>*, tree_node*
(*)(tree_node**, int*, tree_node* (*)(tree_node**, int*, void*), void*,
hash_set<tree_node*, default_hashset_traits>*))
        ../../gcc/gcc/tree.c:11099
0xc2e0a5 walk_tree_1(tree_node**, tree_node* (*)(tree_node**, int*, void*),
void*, hash_set<tree_node*, default_hashset_traits>*, tree_node*
(*)(tree_node**, int*, tree_node* (*)(tree_node**, int*, void*), void*,
hash_set<tree_node*, default_hashset_traits>*))
        ../../gcc/gcc/tree.c:11099
0x768461 record_references_in_initializer(tree_node*, bool)
        ../../gcc/gcc/cgraphbuild.c:426
0xc5aede varpool_node::analyze()
        ../../gcc/gcc/varpool.c:534
0x76c60a analyze_functions
        ../../gcc/gcc/cgraphunit.c:1048
0x76ca65 symbol_table::finalize_compilation_unit()
        ../../gcc/gcc/cgraphunit.c:2351
0x61102b cp_write_global_declarations()
        ../../gcc/gcc/cp/decl2.c:4688


Might be releated to bug 50410 and/or bug 57197