https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98293
Bug ID: 98293
Summary: [11 Regression] ICE in get_subregion_within_ctor, at
analyzer/store.cc:494
Product: gcc
Version: 11.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: analyzer
Assignee: dmalcolm at gcc dot gnu.org
Reporter: gs...@t-online.de
Target Milestone: ---
Following options produce an ICE for several testsuite files,
e.g. file pr93399.c (changed between 20201004 and 20201018) :
$ gcc-10 -c pr93399.c -fanalyzer -fsanitize=undefined
$
$ gcc-11-20201213 -c pr93399.c -fanalyzer -fsanitize=undefined
during IPA pass: analyzer
pr93399.c: In function 'main':
pr93399.c:14:18: internal compiler error: Segmentation fault
14 | char *substr = strstr (argv[0], "\n");
| ^~~~~~~~~~~~~~~~~~~~~~
0xb5028f crash_signal
../../gcc/toplev.c:327
0xe936f5 get_subregion_within_ctor
../../gcc/analyzer/store.cc:494
0xe98ef7 ana::binding_map::apply_ctor_pair_to_child_region(ana::region const*,
ana::region_model_manager*, tree_node*, tree_node*)
../../gcc/analyzer/store.cc:615
0xe99219 ana::binding_map::apply_ctor_to_region(ana::region const*, tree_node*,
ana::region_model_manager*)
../../gcc/analyzer/store.cc:549
0xe990f0 ana::binding_map::apply_ctor_pair_to_child_region(ana::region const*,
ana::region_model_manager*, tree_node*, tree_node*)
../../gcc/analyzer/store.cc:617
0xe99219 ana::binding_map::apply_ctor_to_region(ana::region const*, tree_node*,
ana::region_model_manager*)
../../gcc/analyzer/store.cc:549
0xe7361c ana::decl_region::get_svalue_for_constructor(tree_node*,
ana::region_model_manager*) const
../../gcc/analyzer/region.cc:931
0xe7372a
ana::decl_region::get_svalue_for_initializer(ana::region_model_manager*) const
../../gcc/analyzer/region.cc:973
0xe75812 ana::region_model::get_initial_value_for_global(ana::region const*)
const
../../gcc/analyzer/region-model.cc:1451
0xe8a4bc ana::reachable_regions::add(ana::region const*, bool)
../../gcc/analyzer/region-model-reachability.cc:137
0xe780c0 ana::region_model::handle_unrecognized_call(gcall const*,
ana::region_model_context*)
../../gcc/analyzer/region-model.cc:967
0xe78382 ana::region_model::on_call_post(gcall const*, bool,
ana::region_model_context*)
../../gcc/analyzer/region-model.cc:923
0xe5e3a4 ana::exploded_node::on_stmt(ana::exploded_graph&, ana::supernode
const*, gimple const*, ana::program_state*) const
../../gcc/analyzer/engine.cc:1210
0xe603ae ana::exploded_graph::process_node(ana::exploded_node*)
../../gcc/analyzer/engine.cc:2948
0xe60a52 ana::exploded_graph::process_worklist()
../../gcc/analyzer/engine.cc:2573
0xe629e2 ana::impl_run_checkers(ana::logger*)
../../gcc/analyzer/engine.cc:4738
0xe6427d ana::run_checkers()
../../gcc/analyzer/engine.cc:4809
0xe57828 execute
../../gcc/analyzer/analyzer-pass.cc:87
