https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82492
--- Comment #5 from Markus Trippelsdorf <trippels at gcc dot gnu.org> --- 0xad530f crash_signal ../../gcc-7.2.0/gcc/toplev.c:337 0xc2bbd8 gcond* dyn_cast<gcond*, gimple>(gimple*) ../../gcc-7.2.0/gcc/is-a.h:219 0xc2bbd8 vn_phi_lookup ../../gcc-7.2.0/gcc/tree-ssa-sccvn.c:3087 0xc2bbd8 visit_phi ../../gcc-7.2.0/gcc/tree-ssa-sccvn.c:3882 0xc2bbd8 visit_use ../../gcc-7.2.0/gcc/tree-ssa-sccvn.c:3948 0xc2c870 process_scc ../../gcc-7.2.0/gcc/tree-ssa-sccvn.c:4296 0xc2c870 extract_and_process_scc_for_name ../../gcc-7.2.0/gcc/tree-ssa-sccvn.c:4352 0xc2c870 DFS ../../gcc-7.2.0/gcc/tree-ssa-sccvn.c:4404 0xc2d766 sccvn_dom_walker::before_dom_children(basic_block_def*) ../../gcc-7.2.0/gcc/tree-ssa-sccvn.c:4857 0x10beb0a dom_walker::walk(basic_block_def*) ../../gcc-7.2.0/gcc/domwalk.c:265 0xc2e32a run_scc_vn(vn_lookup_kind) ../../gcc-7.2.0/gcc/tree-ssa-sccvn.c:4981 0xc03744 execute ../../gcc-7.2.0/gcc/tree-ssa-pre.c:5201