https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78105
--- Comment #8 from PeteVine <tulipawn at gmail dot com> --- FWIW, here's the corresponding backtrace: #0 0x0000000000afa00c in df_get_live_out () at ../../gcc/df.h:1159 #1 update_ebb_live_info (tail=<optimized out>, head=0x137b838 <caller_save_needed>) at ../../gcc/lra-constraints.c:5612 #2 lra_inheritance () at ../../gcc/lra-constraints.c:6251 #3 0x0000000000b02da0 in lra (f=<optimized out>) at ../../gcc/lra.c:2403 #4 0x0000000000e8cb60 in do_reload () at ../../gcc/ira.c:5374 #5 execute (this=<optimized out>) at ../../gcc/ira.c:5558 #6 0x0000000000abdd80 in execute_one_pass (pass=pass@entry=0x1451ac0) at ../../gcc/passes.c:2341 #7 0x0000000000abe29c in execute_pass_list_1 (pass=0x1451ac0) at ../../gcc/passes.c:2430 #8 0x0000000000abe2b0 in execute_pass_list_1 (pass=0x1450a40) at ../../gcc/passes.c:2431 #9 0x0000000000abe308 in execute_pass_list (fn=<optimized out>, pass=<optimized out>) at ../../gcc/passes.c:2441 #10 0x0000000000d1e148 in cgraph_node::expand (this=this@entry=0x7fb7431000) at ../../gcc/cgraphunit.c:2001 #11 0x0000000000d1f1f8 in expand_all_functions () at ../../gcc/cgraphunit.c:2137 #12 symbol_table::_ZN12symbol_table7compileEv.part.49(void) (this=this@entry=0x7fb7798000) at ../../gcc/cgraphunit.c:2494 #13 0x0000000000d1f674 in symbol_table::compile (this=0x7fb7798000) at ../../gcc/cgraphunit.c:2400 #14 symbol_table::finalize_compilation_unit (this=0x7fb7798000) at ../../gcc/cgraphunit.c:2584 #15 0x0000000000863ef8 in compile_file () at ../../gcc/toplev.c:493 #16 0x0000000000573f80 in do_compile () at ../../gcc/toplev.c:2012 #17 toplev::main (this=this@entry=0x7fffffdf68, argc=<optimized out>, argc@entry=92, argv=<optimized out>, argv@entry=0x7fffffe0b8) at ../../gcc/toplev.c:2146 #18 0x000000000057345c in main (argc=92, argv=0x7fffffe0b8) at ../../gcc/main.c:39 I'm going to clear all flags in the future if that's the expected way.
