https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102662
Bug ID: 102662
Summary: [12 Regression] ICE in validate, at
analyzer/constraint-manager.cc:581
Product: gcc
Version: 12.0
Status: UNCONFIRMED
Keywords: ice-checking, 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++-12.0.0-alpha20211003 snapshot (g:d91056851c5c60f226e3192fb955d018b53eb66f)
ICEs when compiling the following piece of C code w/ -fanalyzer -fstrict-enums:
enum OpCode {
OP_MOVE,
OP_LOADK,
OP_LOADBOOL,
OP_LOADNIL,
OP_GETUPVAL,
OP_SETUPVAL
};
enum OpArg {
OpArgN,
OpArgU,
OpArgR,
OpArgK
};
void
symbexec_lastpc (enum OpCode symbexec_lastpc_op, enum OpArg luaP_opmodes)
{
switch (luaP_opmodes)
{
case OpArgN:
case OpArgK:
{
switch (symbexec_lastpc_op)
{
case OP_LOADNIL:
case OP_SETUPVAL:
break;
default:
break;
}
}
default:
break;
}
}
% g++-12.0.0 -fanalyzer -fstrict-enums -c c5smosbk.c
during IPA pass: analyzer
In function 'void symbexec_lastpc(OpCode, OpArg)':
cc1plus: internal compiler error: in validate, at
analyzer/constraint-manager.cc:581
0x91ca2d ana::bounded_ranges::validate() const
/var/tmp/portage/sys-devel/gcc-12.0.0_alpha20211003/work/gcc-12-20211003/gcc/analyzer/constraint-manager.cc:581
0x1f62159
ana::bounded_ranges_manager::get_or_create_union(vec<ana::bounded_ranges
const*, va_heap, vl_ptr> const&)
/var/tmp/portage/sys-devel/gcc-12.0.0_alpha20211003/work/gcc-12-20211003/gcc/analyzer/constraint-manager.cc:760
0x1f663ea ana::bounded_ranges_manager::make_case_label_ranges(gswitch const*,
tree_node*)
/var/tmp/portage/sys-devel/gcc-12.0.0_alpha20211003/work/gcc-12-20211003/gcc/analyzer/constraint-manager.cc:937
0x1f6650d
ana::bounded_ranges_manager::create_ranges_for_switch(ana::switch_cfg_superedge
const&, gswitch const*)
/var/tmp/portage/sys-devel/gcc-12.0.0_alpha20211003/work/gcc-12-20211003/gcc/analyzer/constraint-manager.cc:889
0x1f666ce
ana::bounded_ranges_manager::get_or_create_ranges_for_switch(ana::switch_cfg_superedge
const*, gswitch const*)
/var/tmp/portage/sys-devel/gcc-12.0.0_alpha20211003/work/gcc-12-20211003/gcc/analyzer/constraint-manager.cc:867
0x1539ec8
ana::region_model::apply_constraints_for_gswitch(ana::switch_cfg_superedge
const&, gswitch const*, ana::region_model_context*, ana::rejected_constraint**)
/var/tmp/portage/sys-devel/gcc-12.0.0_alpha20211003/work/gcc-12-20211003/gcc/analyzer/region-model.cc:3341
0x152cab1 ana::program_state::on_edge(ana::exploded_graph&,
ana::exploded_node*, ana::superedge const*, ana::uncertainty_t*)
/var/tmp/portage/sys-devel/gcc-12.0.0_alpha20211003/work/gcc-12-20211003/gcc/analyzer/program-state.cc:1018
0x151a9aa ana::exploded_graph::process_node(ana::exploded_node*)
/var/tmp/portage/sys-devel/gcc-12.0.0_alpha20211003/work/gcc-12-20211003/gcc/analyzer/engine.cc:3575
0x151befa ana::exploded_graph::process_worklist()
/var/tmp/portage/sys-devel/gcc-12.0.0_alpha20211003/work/gcc-12-20211003/gcc/analyzer/engine.cc:2788
0x151e395 ana::impl_run_checkers(ana::logger*)
/var/tmp/portage/sys-devel/gcc-12.0.0_alpha20211003/work/gcc-12-20211003/gcc/analyzer/engine.cc:5364
0x151f240 ana::run_checkers()
/var/tmp/portage/sys-devel/gcc-12.0.0_alpha20211003/work/gcc-12-20211003/gcc/analyzer/engine.cc:5435
0x150efe8 execute
/var/tmp/portage/sys-devel/gcc-12.0.0_alpha20211003/work/gcc-12-20211003/gcc/analyzer/analyzer-pass.cc:87
