https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68331
--- Comment #6 from vries at gcc dot gnu.org --- (In reply to vries from comment #5) > libstdc++.sum:FAIL: experimental/filesystem/path/concat/strings.cc execution The test doesn't pass when compiled from the command line with -fno-ipa-pta. Failure backtrace (for -O0 -g): ... Program received signal SIGSEGV, Segmentation fault. 0x0000000000404811 in std::vector<std::experimental::filesystem::v1::__cxx11::path::_Cmpt, std::allocator<std::experimental::filesystem::v1::__cxx11::path::_Cmpt> >::~vector (this=0x4f, __in_chrg=<optimized out>) at x86_64-pc-linux-gnu/libstdc++-v3/include/bits/stl_vector.h:426 426 { std::_Destroy(this->_M_impl._M_start, this->_M_impl._M_finish, (gdb) bt #0 0x0000000000404811 in std::vector<std::experimental::filesystem::v1::__cxx11::path::_Cmpt, std::allocator<std::experimental::filesystem::v1::__cxx11::path::_Cmpt> >::~vector (this=0x4f, __in_chrg=<optimized out>) at x86_64-pc-linux-gnu/libstdc++-v3/include/bits/stl_vector.h:426 #1 0x000000000040373e in std::experimental::filesystem::v1::__cxx11::path::~path (this=0x2f, __in_chrg=<optimized out>) at x86_64-pc-linux-gnu/libstdc++-v3/include/experimental/bits/fs_path.h:190 #2 0x00000000004075ec in std::experimental::filesystem::v1::__cxx11::path::_M_split_cmpts() () #3 0x0000000000407fd7 in std::experimental::filesystem::v1::__cxx11::path::parent_path() const () #4 0x00000000004042bf in test01 () at libstdc++-v3/testsuite/experimental/filesystem/path/concat/strings.cc:45 #5 0x000000000040465a in main () at libstdc++-v3/testsuite/experimental/filesystem/path/concat/strings.cc:54 ...