https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70594
--- Comment #39 from Jakub Jelinek <jakub at gcc dot gnu.org> --- Sorry, error on my part. There is actually #1 0x0000000000b3e9d6 in symbol_table::release_symbol (this=0x7ffff15a10a8, node=<error reading variable: Cannot access memory at address 0x20>, uid=0) at ../../gcc/cgraph.h:2514 #2 0x0000000000b3972a in cgraph_node::remove (this=<error reading variable: Cannot access memory at address 0x20>) at ../../gcc/cgraph.c:1896 #3 0x0000000000df52c0 in symbol_table::remove_unreachable_nodes (this=0x7ffff15a10a8, file=0x0) at ../../gcc/ipa.c:531 #4 0x0000000000f3cf1d in execute_todo (flags=448) at ../../gcc/passes.c:2024 #5 0x0000000000f3d9b6 in execute_one_pass (pass=<opt_pass* 0x27c85f0 "visibility"(18)>) at ../../gcc/passes.c:2376 #6 0x0000000000f3e798 in execute_ipa_pass_list (pass=<opt_pass* 0x27c85f0 "visibility"(18)>) at ../../gcc/passes.c:2766 #7 0x0000000000b4a7b9 in ipa_passes () at ../../gcc/cgraphunit.c:2265 #8 0x0000000000b4ac2d in symbol_table::compile (this=0x7ffff15a10a8) at ../../gcc/cgraphunit.c:2404 #9 0x0000000000b4afd4 in symbol_table::finalize_compilation_unit (this=0x7ffff15a10a8) at ../../gcc/cgraphunit.c:2564 in between.