https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89392
Bug ID: 89392 Summary: [7/8/9 Regression] ICE in bitmap_bit_p, at bitmap.c:978 Product: gcc Version: 9.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c++ Assignee: unassigned at gcc dot gnu.org Reporter: gs...@t-online.de Target Milestone: --- Started with gcc-7 : $ cat z1.cc typedef struct { virtual void f () {} } s; s t; $ g++-6 -c z1.cc -O1 -flto -fvtable-verify=std $ $ g++-9-20190217 -c z1.cc -O0 -flto -fvtable-verify=std $ $ g++-9-20190217 -c z1.cc -O1 -flto -fvtable-verify=std during GIMPLE pass: ealias z1.cc: In function '_GLOBAL__sub_I.00099_t': z1.cc:4:4: internal compiler error: Segmentation fault 4 | s t; | ^ 0xba166f crash_signal ../../gcc/toplev.c:326 0x7bdb4e bitmap_bit_p(bitmap_head*, int) ../../gcc/bitmap.c:978 0xd2c858 do_ds_constraint ../../gcc/tree-ssa-structalias.c:1713 0xd2c858 do_complex_constraint ../../gcc/tree-ssa-structalias.c:1811 0xd2c858 solve_graph ../../gcc/tree-ssa-structalias.c:2757 0xd34fba solve_constraints ../../gcc/tree-ssa-structalias.c:7218 0xd37263 compute_points_to_sets ../../gcc/tree-ssa-structalias.c:7275 0xd37263 compute_may_aliases() ../../gcc/tree-ssa-structalias.c:7638 0xadb711 execute_function_todo ../../gcc/passes.c:1949 0xadc7f2 execute_todo ../../gcc/passes.c:2031