https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68404
--- Comment #6 from Bill Schmidt <wschmidt at gcc dot gnu.org> ---
Backtrace from gdb:
Program received signal SIGSEGV, Segmentation fault.
0x0000000010cfcf74 in reg_save_code(int, machine_mode) [clone .lto_priv.8969]
()
(gdb) bt
#0 0x0000000010cfcf74 in reg_save_code(int, machine_mode) [clone
.lto_priv.8969] ()
#1 0x0000000010f4d62c in save_call_clobbered_regs() ()
#2 0x0000000010c20af8 in reload(rtx_insn*, int) ()
#3 0x0000000010c173f0 in (anonymous
namespace)::pass_reload::execute(function*) [clone .lto_priv.2787] ()
#4 0x0000000010635e5c in execute_one_pass(opt_pass*) ()
#5 0x0000000010780420 in execute_pass_list(function*, opt_pass*) [clone
.localalias.70] [clone .lto_priv.4009] ()
#6 0x0000000010683234 in cgraph_node::expand() ()
#7 0x0000000010630cf4 in symbol_table::compile() ()
#8 0x0000000010685bf4 in symbol_table::finalize_compilation_unit() ()
#9 0x00000000105f09dc in compile_file() [clone .lto_priv.2960] ()
#10 0x0000000010547f20 in toplev::main(int, char**) ()
#11 0x0000000010545bf0 in main ()
