https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97489
Bug ID: 97489
Summary: [11 Regression] ICE: Segmentation fault (in
ana::supergraph::get_node_for_function_entry(function*
) const)
Product: gcc
Version: 11.0
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: ---
g++-11.0.0-alpha20201018 snapshot (g:1e70b1a358b6ce3b894f284d88fbb90518d45cc0)
ICEs when compiling the following testcase, extracted from
test/CodeGenCXX/pr34163.cpp from the clang 10.0.1 test suite, w/ -fanalyzer:
struct X {
virtual ~X() {}
virtual void key_function();
};
void X::key_function() {}
% g++-11.0.0 -fanalyzer -c dkuvlwww.cpp
during IPA pass: analyzer
dkuvlwww.cpp:6:25: internal compiler error: Segmentation fault
6 | void X::key_function() {}
| ^
0x1020adf crash_signal
/var/tmp/portage/sys-devel/gcc-11.0.0_alpha20201018/work/gcc-11-20201018/gcc/toplev.c:330
0x13aeb92 ana::supergraph::get_node_for_function_entry(function*) const
/var/tmp/portage/sys-devel/gcc-11.0.0_alpha20201018/work/gcc-11-20201018/gcc/analyzer/supergraph.h:96
0x13aeb92 ana::function_point::from_function_entry(ana::supergraph const&,
function*)
/var/tmp/portage/sys-devel/gcc-11.0.0_alpha20201018/work/gcc-11-20201018/gcc/analyzer/program-point.cc:215
0x139f36f ana::program_point::from_function_entry(ana::supergraph const&,
function*)
/var/tmp/portage/sys-devel/gcc-11.0.0_alpha20201018/work/gcc-11-20201018/gcc/analyzer/program-point.h:253
0x139f36f ana::exploded_graph::add_function_entry(function*)
/var/tmp/portage/sys-devel/gcc-11.0.0_alpha20201018/work/gcc-11-20201018/gcc/analyzer/engine.cc:1949
0x139fa07 ana::exploded_graph::on_escaped_function(tree_node*)
/var/tmp/portage/sys-devel/gcc-11.0.0_alpha20201018/work/gcc-11-20201018/gcc/analyzer/engine.cc:3985
0x139fa7b add_any_callbacks
/var/tmp/portage/sys-devel/gcc-11.0.0_alpha20201018/work/gcc-11-20201018/gcc/analyzer/engine.cc:2290
0x12ff60a walk_tree_1(tree_node**, tree_node* (*)(tree_node**, int*, void*),
void*, hash_set<tree_node*, false, default_hash_traits<tree_node*> >*,
tree_node* (*)(tree_node**, int*, tree_node* (*)(tree_node**, int*, void*),
void*, hash_set<tree_node*, false, default_hash_traits<tree_node*> >*))
/var/tmp/portage/sys-devel/gcc-11.0.0_alpha20201018/work/gcc-11-20201018/gcc/tree.c:12001
0x12ff9f1 walk_tree_1(tree_node**, tree_node* (*)(tree_node**, int*, void*),
void*, hash_set<tree_node*, false, default_hash_traits<tree_node*> >*,
tree_node* (*)(tree_node**, int*, tree_node* (*)(tree_node**, int*, void*),
void*, hash_set<tree_node*, false, default_hash_traits<tree_node*> >*))
/var/tmp/portage/sys-devel/gcc-11.0.0_alpha20201018/work/gcc-11-20201018/gcc/tree.c:12078
0x139f8fa ana::exploded_graph::build_initial_worklist()
/var/tmp/portage/sys-devel/gcc-11.0.0_alpha20201018/work/gcc-11-20201018/gcc/analyzer/engine.cc:2330
0x13a37e0 ana::impl_run_checkers(ana::logger*)
/var/tmp/portage/sys-devel/gcc-11.0.0_alpha20201018/work/gcc-11-20201018/gcc/analyzer/engine.cc:4576
0x13a463c ana::run_checkers()
/var/tmp/portage/sys-devel/gcc-11.0.0_alpha20201018/work/gcc-11-20201018/gcc/analyzer/engine.cc:4650
0x1397628 execute
/var/tmp/portage/sys-devel/gcc-11.0.0_alpha20201018/work/gcc-11-20201018/gcc/analyzer/analyzer-pass.cc:84
