https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100011
Bug ID: 100011
Summary: internal compiler error in analyzer during IPA pass
Product: gcc
Version: 11.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: analyzer
Assignee: dmalcolm at gcc dot gnu.org
Reporter: raj.khem at gmail dot com
Target Milestone: ---
I am seeing a ICE in gcc when compiling attached reduced testcase from gnutls
project. This is caused by 3a66c289a3f395e50de79424e1e6f401a4dc1ab7
done for #99042, #99774
a.i
=========================================
void terminate(int sig)
{
char buf[64] = { 0 };
exit(1);
}
int main(int argc, char **argv)
{
signal(0, terminate);
return 0;
}
=========================================
$ /tmp/gcc/gcc/cc1 a.i -fanalyzer
Analyzing compilation unit
Performing interprocedural optimizations
<*free_lang_data> {heap 884k} <visibility> {heap 884k} <build_ssa_passes>
{heap 884k} <opt_local_passes> {heap 884k} <remove_symbols> {heap 1076k}
<targetclone> {heap 1076k} <free-fnsummary> {heap 1076k}Streaming LTO
<analyzer>during IPA pass: analyzer
a.i: At top level:
a.i:10:9: internal compiler error: Segmentation fault
10 | return 0;
| ^
0xdf96cf crash_signal
/home/kraj/work/gcc/gcc/toplev.c:327
0x11b4e06 ana::region_model::on_assignment(gassign const*,
ana::region_model_context*)
/home/kraj/work/gcc/gcc/analyzer/region-model.cc:729
0x195128a ana::diagnostic_manager::add_events_for_eedge(ana::path_builder
const&, ana::exploded_edge const&, ana::checker_path*) const
/home/kraj/work/gcc/gcc/analyzer/diagnostic-manager.cc:1554
0x1951c04 ana::diagnostic_manager::build_emission_path(ana::path_builder
const&, ana::exploded_path const&, ana::checker_path*) const
/home/kraj/work/gcc/gcc/analyzer/diagnostic-manager.cc:1183
0x1951dcb ana::diagnostic_manager::emit_saved_diagnostic(ana::exploded_graph
const&, ana::saved_diagnostic const&)
/home/kraj/work/gcc/gcc/analyzer/diagnostic-manager.cc:1128
0x195527f ana::dedupe_winners::emit_best(ana::diagnostic_manager*,
ana::exploded_graph const&)
/home/kraj/work/gcc/gcc/analyzer/diagnostic-manager.cc:1051
0x1952250 ana::diagnostic_manager::emit_saved_diagnostics(ana::exploded_graph
const&)
/home/kraj/work/gcc/gcc/analyzer/diagnostic-manager.cc:1100
0x119650c ana::impl_run_checkers(ana::logger*)
/home/kraj/work/gcc/gcc/analyzer/engine.cc:4887
0x11972dc ana::run_checkers()
/home/kraj/work/gcc/gcc/analyzer/engine.cc:4944
0x1189af8 execute
/home/kraj/work/gcc/gcc/analyzer/analyzer-pass.cc:87
