https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104524
Bug ID: 104524
Summary: [12 Regression] ICE in get_or_create_cast, at
analyzer/region-model-manager.cc:499
Product: gcc
Version: 12.0
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 12.0.1 20220213 snapshot (g:58aeb75d4097010ad9bb72b964265b18ab284f93) ICEs
when compiling the following testcase, reduced from
gcc/testsuite/gcc.c-torture/execute/20010925-1.c, w/ -fanalyzer:
int src[1];
int
main (int c, char **a)
{
__builtin_memcpy (*a, src, c);
return 0;
}
% gcc-12.0.1 -fanalyzer -c gg3fyq9h.c
during IPA pass: analyzer
gg3fyq9h.c: In function 'main':
gg3fyq9h.c:6:3: internal compiler error: in get_or_create_cast, at
analyzer/region-model-manager.cc:499
6 | __builtin_memcpy (*a, src, c);
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
0x7b4eaf ana::region_model_manager::get_or_create_cast(tree_node*, ana::svalue
const*)
/var/tmp/portage/sys-devel/gcc-12.0.1_p20220213/work/gcc-12-20220213/gcc/analyzer/region-model-manager.cc:499
0x12b5d48 ana::region_model_manager::maybe_fold_sub_svalue(tree_node*,
ana::svalue const*, ana::region const*)
/var/tmp/portage/sys-devel/gcc-12.0.1_p20220213/work/gcc-12-20220213/gcc/analyzer/region-model-manager.cc:764
0x12b5d48 ana::region_model_manager::get_or_create_sub_svalue(tree_node*,
ana::svalue const*, ana::region const*)
/var/tmp/portage/sys-devel/gcc-12.0.1_p20220213/work/gcc-12-20220213/gcc/analyzer/region-model-manager.cc:847
0x12dae75 ana::binding_cluster::get_any_binding(ana::store_manager*,
ana::region const*) const
/var/tmp/portage/sys-devel/gcc-12.0.1_p20220213/work/gcc-12-20220213/gcc/analyzer/store.cc:1477
0x1291adb ana::region_model::get_initial_value_for_global(ana::region const*)
const
/var/tmp/portage/sys-devel/gcc-12.0.1_p20220213/work/gcc-12-20220213/gcc/analyzer/region-model.cc:2034
0x12a7534 ana::region_model::impl_call_memcpy(ana::call_details const&)
/var/tmp/portage/sys-devel/gcc-12.0.1_p20220213/work/gcc-12-20220213/gcc/analyzer/region-model-impl-calls.cc:515
0x12a0a3a ana::region_model::on_call_pre(gcall const*,
ana::region_model_context*, bool*)
/var/tmp/portage/sys-devel/gcc-12.0.1_p20220213/work/gcc-12-20220213/gcc/analyzer/region-model.cc:1191
0x12a36e2 ana::region_model::on_stmt_pre(gimple const*, bool*, bool*,
ana::region_model_context*)
/var/tmp/portage/sys-devel/gcc-12.0.1_p20220213/work/gcc-12-20220213/gcc/analyzer/region-model.cc:1074
0x1270248 ana::exploded_node::on_stmt(ana::exploded_graph&, ana::supernode
const*, gimple const*, ana::program_state*, ana::uncertainty_t*,
ana::path_context*)
/var/tmp/portage/sys-devel/gcc-12.0.1_p20220213/work/gcc-12-20220213/gcc/analyzer/engine.cc:1305
0x1273656 ana::exploded_graph::process_node(ana::exploded_node*)
/var/tmp/portage/sys-devel/gcc-12.0.1_p20220213/work/gcc-12-20220213/gcc/analyzer/engine.cc:3694
0x127467a ana::exploded_graph::process_worklist()
/var/tmp/portage/sys-devel/gcc-12.0.1_p20220213/work/gcc-12-20220213/gcc/analyzer/engine.cc:3137
0x1276d20 ana::impl_run_checkers(ana::logger*)
/var/tmp/portage/sys-devel/gcc-12.0.1_p20220213/work/gcc-12-20220213/gcc/analyzer/engine.cc:5716
0x1277c1e ana::run_checkers()
/var/tmp/portage/sys-devel/gcc-12.0.1_p20220213/work/gcc-12-20220213/gcc/analyzer/engine.cc:5787
0x12668f8 execute
/var/tmp/portage/sys-devel/gcc-12.0.1_p20220213/work/gcc-12-20220213/gcc/analyzer/analyzer-pass.cc:87
