https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93546
Bug ID: 93546
Summary: ICE: Segmentation fault (in
ana::region_model::add_region_for_type)
Product: gcc
Version: 10.0
Status: UNCONFIRMED
Keywords: ice-on-valid-code
Severity: normal
Priority: P3
Component: analyzer
Assignee: dmalcolm at gcc dot gnu.org
Reporter: asolokha at gmx dot com
Target Milestone: ---
gcc-10.0.1-alpha20200202 snapshot (g:b817be038d94c987e02c26ed2d81b6f2ebb5f97a)
ICEs when compiling the following testcase w/ -fanalyzer:
void
ch (int x1)
{
({ bx: &&bx; });
while (x1 == 0)
{
}
}
% gcc-10.0.1 -fanalyzer -c albydd27.c
during IPA pass: analyzer
albydd27.c: In function 'ch':
albydd27.c:5:9: internal compiler error: Segmentation fault
5 | while (x1 == 0)
| ^
0xd8817f crash_signal
/var/tmp/portage/sys-devel/gcc-10.0.1_alpha20200202/work/gcc-10-20200202/gcc/toplev.c:328
0x1103308 ana::region_model::add_region_for_type(ana::region_id, tree_node*)
/var/tmp/portage/sys-devel/gcc-10.0.1_alpha20200202/work/gcc-10-20200202/gcc/analyzer/region-model.cc:6019
0x1103308 ana::map_region::get_or_create(ana::region_model*, ana::region_id,
tree_node*, tree_node*)
/var/tmp/portage/sys-devel/gcc-10.0.1_alpha20200202/work/gcc-10-20200202/gcc/analyzer/region-model.cc:1649
0x110507c ana::map_region::can_merge_p(ana::map_region const*, ana::map_region
const*, ana::map_region*, ana::region_id, ana::model_merger*)
/var/tmp/portage/sys-devel/gcc-10.0.1_alpha20200202/work/gcc-10-20200202/gcc/analyzer/region-model.cc:1882
0x110512f ana::map_region::can_merge_p(ana::map_region const*, ana::map_region
const*, ana::map_region*, ana::region_id, ana::model_merger*)
/var/tmp/portage/sys-devel/gcc-10.0.1_alpha20200202/work/gcc-10-20200202/gcc/analyzer/region-model.cc:1903
0x11059c0 ana::root_region::can_merge_p(ana::root_region const*,
ana::root_region const*, ana::root_region*, ana::model_merger*)
/var/tmp/portage/sys-devel/gcc-10.0.1_alpha20200202/work/gcc-10-20200202/gcc/analyzer/region-model.cc:3094
0x1105bb2 ana::region_model::can_merge_with_p(ana::region_model const&,
ana::region_model*, ana::svalue_id_merger_mapping*) const
/var/tmp/portage/sys-devel/gcc-10.0.1_alpha20200202/work/gcc-10-20200202/gcc/analyzer/region-model.cc:6379
0x10f2f1d ana::program_state::can_merge_with_p(ana::program_state const&,
ana::extrinsic_state const&, ana::program_state*) const
/var/tmp/portage/sys-devel/gcc-10.0.1_alpha20200202/work/gcc-10-20200202/gcc/analyzer/program-state.cc:963
0x10e3058 ana::exploded_graph::get_or_create_node(ana::program_point const&,
ana::program_state const&, ana::state_change*)
/var/tmp/portage/sys-devel/gcc-10.0.1_alpha20200202/work/gcc-10-20200202/gcc/analyzer/engine.cc:1870
0x10e5cb2 ana::exploded_graph::process_node(ana::exploded_node*)
/var/tmp/portage/sys-devel/gcc-10.0.1_alpha20200202/work/gcc-10-20200202/gcc/analyzer/engine.cc:2428
0x10e6432 ana::exploded_graph::process_worklist()
/var/tmp/portage/sys-devel/gcc-10.0.1_alpha20200202/work/gcc-10-20200202/gcc/analyzer/engine.cc:2231
0x10e6ab9 ana::impl_run_checkers(ana::logger*)
/var/tmp/portage/sys-devel/gcc-10.0.1_alpha20200202/work/gcc-10-20200202/gcc/analyzer/engine.cc:3552
0x10e755c ana::run_checkers()
/var/tmp/portage/sys-devel/gcc-10.0.1_alpha20200202/work/gcc-10-20200202/gcc/analyzer/engine.cc:3609
0x10dd178 execute
/var/tmp/portage/sys-devel/gcc-10.0.1_alpha20200202/work/gcc-10-20200202/gcc/analyzer/analyzer-pass.cc:84
