https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98580
Bug ID: 98580
Summary: ICE with -fanalyzer and LTO: tree check: expected
class 'type', have 'exceptional' (error_mark) in
useless_type_conversion_p
Product: gcc
Version: 11.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: analyzer
Assignee: dmalcolm at gcc dot gnu.org
Reporter: acoplan at gcc dot gnu.org
Target Milestone: ---
The following fails:
$ cat a.c
int a;
int *p = &a;
void foo();
int main() { foo(); }
$ cat b.c
typedef struct {
int a;
} b;
typedef struct {
b c;
} d;
extern d e;
extern int *p;
void foo() { e.c.a && p; }
$ aarch64-elf-gcc -flto -fanalyzer a.c b.c
during IPA pass: analyzer
b.c: In function 'foo':
b.c:9:20: internal compiler error: tree check: expected class 'type', have
'exceptional' (error_mark) in useless_type_conversion_p, at gimple-expr.c:87
9 | void foo() { e.c.a && p; }
| ^
0x101c8fc tree_class_check_failed(tree_node const*, tree_code_class, char
const*, int, char const*)
/home/alecop01/toolchain/src/gcc/gcc/tree.c:9860
0x949a4a tree_class_check(tree_node*, tree_code_class, char const*, int, char
const*)
/home/alecop01/toolchain/src/gcc/gcc/tree.h:3461
0x949a4a useless_type_conversion_p(tree_node*, tree_node*)
/home/alecop01/toolchain/src/gcc/gcc/gimple-expr.c:87
0x1120770 assert_compat_types
/home/alecop01/toolchain/src/gcc/gcc/analyzer/region-model.cc:1256
0x1125336 ana::region_model::get_rvalue(ana::path_var,
ana::region_model_context*)
/home/alecop01/toolchain/src/gcc/gcc/analyzer/region-model.cc:1391
0x111f875
ana::decl_region::get_svalue_for_initializer(ana::region_model_manager*) const
/home/alecop01/toolchain/src/gcc/gcc/analyzer/region.cc:977
0x11230d8 ana::region_model::get_initial_value_for_global(ana::region const*)
const
/home/alecop01/toolchain/src/gcc/gcc/analyzer/region-model.cc:1451
0x112341f ana::region_model::get_store_value(ana::region const*) const
/home/alecop01/toolchain/src/gcc/gcc/analyzer/region-model.cc:1533
0x1124e54 ana::region_model::get_rvalue_1(ana::path_var,
ana::region_model_context*)
/home/alecop01/toolchain/src/gcc/gcc/analyzer/region-model.cc:1320
0x1125316 ana::region_model::get_rvalue(ana::path_var,
ana::region_model_context*)
/home/alecop01/toolchain/src/gcc/gcc/analyzer/region-model.cc:1389
0x1125388 ana::region_model::get_rvalue(tree_node*, ana::region_model_context*)
/home/alecop01/toolchain/src/gcc/gcc/analyzer/region-model.cc:1402
0x11254eb ana::region_model::get_gassign_result(gassign const*,
ana::region_model_context*)
/home/alecop01/toolchain/src/gcc/gcc/analyzer/region-model.cc:518
0x11258f6 ana::region_model::on_assignment(gassign const*,
ana::region_model_context*)
/home/alecop01/toolchain/src/gcc/gcc/analyzer/region-model.cc:665
0x110545b ana::exploded_node::on_stmt(ana::exploded_graph&, ana::supernode
const*, gimple const*, ana::program_state*) const
/home/alecop01/toolchain/src/gcc/gcc/analyzer/engine.cc:1118
0x1107970 ana::exploded_graph::process_node(ana::exploded_node*)
/home/alecop01/toolchain/src/gcc/gcc/analyzer/engine.cc:2948
0x110839e ana::exploded_graph::process_worklist()
/home/alecop01/toolchain/src/gcc/gcc/analyzer/engine.cc:2573
0x110a5db ana::impl_run_checkers(ana::logger*)
/home/alecop01/toolchain/src/gcc/gcc/analyzer/engine.cc:4739
0x110b7f7 ana::run_checkers()
/home/alecop01/toolchain/src/gcc/gcc/analyzer/engine.cc:4810
0x10fe18e execute
/home/alecop01/toolchain/src/gcc/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 <https://gcc.gnu.org/bugs/> for instructions.
lto-wrapper: fatal error: aarch64-elf-gcc returned 1 exit status
compilation terminated.
/home/alecop01/toolchain/build-aarch64-elf/install/lib/gcc/aarch64-elf/11.0.0/../../../../aarch64-elf/bin/ld:
error: lto-wrapper failed
collect2: error: ld returned 1 exit status
