https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93436
Bug ID: 93436 Summary: ICE during GIMPLE pass: sanopt with -fsanitize=address -fdump-tree-sanopt Product: gcc Version: 9.2.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c++ Assignee: unassigned at gcc dot gnu.org Reporter: zgredder at gmail dot com Target Milestone: --- Input: #include <optional> std::optional <unsigned> f() { return 0u; } ======================== cfiend@Shoggoth ~/test $ g++ -fsanitize=address -std=c++17 -c -fdump-tree-sanopt test.cpp -freport-bug during GIMPLE pass: sanopt dump file: test.cpp.227t.sanopt In file included from test.cpp:1: /usr/lib/gcc/x86_64-pc-linux-gnu/9.2.0/include/g++-v9/optional: In constructor ‘constexpr std::_Optional_payload<unsigned int, true, true, true>::_Optional_payload(std::in_place_t, _Args&& ...) [with _Args = {unsigned int}][inherited from std::_Optional_payload_base<unsigned int>]’: /usr/lib/gcc/x86_64-pc-linux-gnu/9.2.0/include/g++-v9/optional:298:42: internal compiler error: Segmentation fault 298 | using _Optional_payload_base<_Tp>::_Optional_payload_base; |