https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66214
Bug ID: 66214 Summary: [6 Regression] ICE verify_type failed with -O0 -g via gen_type_die_with_usage's dwarf2out.c:20250 Product: gcc Version: 6.0 Status: UNCONFIRMED Keywords: ice-on-valid-code Severity: normal Priority: P3 Component: middle-end Assignee: unassigned at gcc dot gnu.org Reporter: burnus at gcc dot gnu.org CC: hubicka at gcc dot gnu.org Target Milestone: --- Created attachment 35574 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=35574&action=edit Test case (input13.ii): Compile with g++ -std=c++11 -g The bug reminds me of 66103, but is one is without LTO. Compiling the attached code snipped with "g++ -std=c++11 -g" give the following ICE. Without "-g", it doesn't crash: input13.ii:53:34: required from here input13.ii:44:74: error: TYPE_CANONICAL is not compatible template < typename _Tp, typename _Alloc = std::allocator < _Tp > >class vector:protected _Vector_base < _Tp, [...] input13.ii:44:74: internal compiler error: verify_type failed 0xf3e280 verify_type(tree_node const*) ../../gcc/tree.c:13257 0x96dc04 gen_type_die_with_usage ../../gcc/dwarf2out.c:20250 0x96e2a3 gen_type_die_with_usage ../../gcc/dwarf2out.c:20337 0x97f21c gen_type_die ../../gcc/dwarf2out.c:20434 0x97f21c gen_formal_types_die ../../gcc/dwarf2out.c:18027