[Bug analyzer/98628] internal compiler error: in get_or_create_cluster, at analyzer/store.cc:2040

[ortmann at posteo dot de via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98628

--- Comment #1 from Michael Ortmann  ---
Created attachment 49939
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=49939=edit
The preprocessed file (*.i*) that triggers the bug

[Bug analyzer/98628] New: internal compiler error: in get_or_create_cluster, at analyzer/store.cc:2040

[ortmann at posteo dot de via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98628

Bug ID: 98628
   Summary: internal compiler error: in get_or_create_cluster, at
analyzer/store.cc:2040
   Product: gcc
   Version: 11.0
Status: UNCONFIRMED
  Severity: normal
  Priority: P3
 Component: analyzer
  Assignee: dmalcolm at gcc dot gnu.org
  Reporter: ortmann at posteo dot de
  Target Milestone: ---

Version: gcc (GCC) 11.0.0 20210110 (experimental)

System type: GNU/Linux kernel 5.10.5 glibc 2.32

Options given when GCC was configured/built:
--prefix=/home/michael/opt/gcc-11-20210110 --enable-languages=c
--disable-multilib --with-system-zlib

Trigger:

git clone https://github.com/eggheads/eggdrop.git
cd eggdrop/
git checkout 94d2a4fabfd47deb8d3ae59bea769eb3e792ef07
CC="/home/michael/opt/gcc-11-20210110/bin/gcc -fanalyzer" ./configure 
make config
make

Note: eggdrop requires tcl to be installed also.

Compiler output:

[...]
/home/michael/opt/gcc-11-20210110/bin/gcc -fanalyzer -g -O2 -pipe -Wall -I..
-I..  -DHAVE_CONFIG_H -I/usr/include -g3 -DDEBUG -DDEBUG_ASSERT -DDEBUG_MEM
-DDEBUG_DNS  -c misc.c
during IPA pass: analyzer
misc.c:958:25: internal compiler error: in get_or_create_cluster, at
analyzer/store.cc:2040
  958 | *writeidx++ = ' ';
  | ^
0x76f191 ana::store::get_or_create_cluster(ana::region const*)
../../gcc/analyzer/store.cc:2040
0x11b92f9 ana::binding_cluster::make_unknown_relative_to(ana::binding_cluster
const*, ana::store*, ana::store_manager*)
../../gcc/analyzer/store.cc:1326
0x11bac4e ana::binding_cluster::can_merge_p(ana::binding_cluster const*,
ana::binding_cluster const*, ana::binding_cluster*, ana::store*,
ana::store_manager*, ana::model_merger*)
../../gcc/analyzer/store.cc:1208
0x11bb746 ana::store::can_merge_p(ana::store const*, ana::store const*,
ana::store*, ana::store_manager*, ana::model_merger*)
../../gcc/analyzer/store.cc:2111
0x1189e4c ana::region_model::can_merge_with_p(ana::region_model const&,
ana::program_point const&, ana::region_model*) const
../../gcc/analyzer/region-model.cc:2954
0x117fa0a ana::program_state::can_merge_with_p(ana::program_state const&,
ana::program_point const&, ana::program_state*) const
../../gcc/analyzer/program-state.cc:1083
0x116f36d
ana::exploded_graph::maybe_process_run_of_before_supernode_enodes(ana::exploded_node*)
../../gcc/analyzer/engine.cc:2735
0x1170657 ana::exploded_graph::process_worklist()
../../gcc/analyzer/engine.cc:2443
0x11724bb ana::impl_run_checkers(ana::logger*)
../../gcc/analyzer/engine.cc:4739
0x11732ce ana::run_checkers()
../../gcc/analyzer/engine.cc:4810
0x1165c58 execute
../../gcc/analyzer/analyzer-pass.cc:87
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See  for instructions.
make[1]: *** [Makefile:83: misc.o] Error 1
make[1]: Leaving directory '/tmp/eggdrop/src'
make: *** [Makefile:251: debug] Error 2