https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77768
--- Comment #2 from Markus Trippelsdorf <trippels at gcc dot gnu.org> ---
0x10c39b13 crash_signal
../../gcc/gcc/toplev.c:337
0x10f818d8 visit_reference_op_store
../../gcc/gcc/tree-ssa-sccvn.c:3613
0x10f818d8 visit_use
../../gcc/gcc/tree-ssa-sccvn.c:3858
0x10f8378f process_scc
../../gcc/gcc/tree-ssa-sccvn.c:4142
0x10f8378f extract_and_process_scc_for_name
../../gcc/gcc/tree-ssa-sccvn.c:4198
0x10f8378f DFS
../../gcc/gcc/tree-ssa-sccvn.c:4250
0x10f84f6b sccvn_dom_walker::before_dom_children(basic_block_def*)
../../gcc/gcc/tree-ssa-sccvn.c:4703
0x11806c07 dom_walker::walk(basic_block_def*)
../../gcc/gcc/domwalk.c:265
0x10f7f1e3 run_scc_vn(vn_lookup_kind)
../../gcc/gcc/tree-ssa-sccvn.c:4827
0x10f3d653 execute
../../gcc/gcc/tree-ssa-pre.c:5021
Please submit a full bug report,
