https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93373
Bug ID: 93373
Summary: ICE: Segmentation fault (in tree_class_check)
Product: gcc
Version: 10.0
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-10.0.0-alpha20200119 snapshot (g:3684bbb022cd75da55e1457673f269980aa12cdf)
ICEs when compiling gcc/testsuite/gcc.dg/Warray-bounds-41.c w/ -O2 -fanalyzer:
% gcc-10.0.0-alpha20200119 -O2 -fanalyzer -c
gcc/testsuite/gcc.dg/Warray-bounds-41.c
during IPA pass: analyzer
gcc/testsuite/gcc.dg/Warray-bounds-41.c: In function 'test_vptr_arith_vla_cst':
gcc/testsuite/gcc.dg/Warray-bounds-41.c:14:1: internal compiler error:
Segmentation fault
14 | {
| ^
0xd8568f crash_signal
/var/tmp/portage/sys-devel/gcc-10.0.0_alpha20200119/work/gcc-10-20200119/gcc/toplev.c:328
0xa8fde3 tree_class_check(tree_node*, tree_code_class, char const*, int, char
const*)
/var/tmp/portage/sys-devel/gcc-10.0.0_alpha20200119/work/gcc-10-20200119/gcc/tree.h:3400
0xa8fde3 useless_type_conversion_p(tree_node*, tree_node*)
/var/tmp/portage/sys-devel/gcc-10.0.0_alpha20200119/work/gcc-10-20200119/gcc/gimple-expr.c:88
0x1100801 region_model::get_lvalue(path_var, region_model_context*)
/var/tmp/portage/sys-devel/gcc-10.0.0_alpha20200119/work/gcc-10-20200119/gcc/analyzer/region-model.cc:4713
0x1101c1c region_model::get_rvalue_1(path_var, region_model_context*)
/var/tmp/portage/sys-devel/gcc-10.0.0_alpha20200119/work/gcc-10-20200119/gcc/analyzer/region-model.cc:4755
0x1101d93 region_model::get_rvalue(path_var, region_model_context*)
/var/tmp/portage/sys-devel/gcc-10.0.0_alpha20200119/work/gcc-10-20200119/gcc/analyzer/region-model.cc:4792
0x10eee72 sm_state_map::purge_for_unknown_fncall(exploded_graph const&,
state_machine const&, gcall const*, tree_node*, region_model*)
/var/tmp/portage/sys-devel/gcc-10.0.0_alpha20200119/work/gcc-10-20200119/gcc/analyzer/program-state.cc:367
0x10e1b42 exploded_node::on_stmt(exploded_graph&, supernode const*, gimple
const*, program_state*, state_change*) const
/var/tmp/portage/sys-devel/gcc-10.0.0_alpha20200119/work/gcc-10-20200119/gcc/analyzer/engine.cc:1033
0x10e24d1 exploded_graph::process_node(exploded_node*)
/var/tmp/portage/sys-devel/gcc-10.0.0_alpha20200119/work/gcc-10-20200119/gcc/analyzer/engine.cc:2433
0x10e29b2 exploded_graph::process_worklist()
/var/tmp/portage/sys-devel/gcc-10.0.0_alpha20200119/work/gcc-10-20200119/gcc/analyzer/engine.cc:2253
0x10e3039 impl_run_checkers(logger*)
/var/tmp/portage/sys-devel/gcc-10.0.0_alpha20200119/work/gcc-10-20200119/gcc/analyzer/engine.cc:3570
0x10e3ad3 run_checkers()
/var/tmp/portage/sys-devel/gcc-10.0.0_alpha20200119/work/gcc-10-20200119/gcc/analyzer/engine.cc:3624
0x10d9558 execute
/var/tmp/portage/sys-devel/gcc-10.0.0_alpha20200119/work/gcc-10-20200119/gcc/analyzer/analyzer-pass.cc:84
