https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107803
Bug ID: 107803
Summary: [13 Regression] ICE in init_from_control_deps, at
gimple-predicate-analysis.cc:1699 since
r13-2314-ga8ebd27d0ab69b
Product: gcc
Version: 13.0
Status: UNCONFIRMED
Keywords: ice-on-valid-code
Severity: normal
Priority: P3
Component: tree-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: marxin at gcc dot gnu.org
CC: rguenth at gcc dot gnu.org
Target Milestone: ---
The following crashes:
$ cat ~/Programming/testcases/feasible.ii
void printf(...);
void __sigsetjmp_cancel() __attribute__((__returns_twice__));
int z, main_ret;
void func(void *) {}
int
main() {
int x;
void (*__cancel_routine)(void *)(func);
__sigsetjmp_cancel();
__cancel_routine(0);
if (main_ret)
x = z;
printf(x);
}
$ ./xgcc -B. ~/Programming/testcases/feasible.ii -fno-tree-dominator-opts -O1
-Wmaybe-uninitialized -fno-tree-fre -c
during GIMPLE pass: uninit
/home/marxin/Programming/testcases/feasible.ii: In function ‘int main()’:
/home/marxin/Programming/testcases/feasible.ii:7:1: internal compiler error: in
init_from_control_deps, at gimple-predicate-analysis.cc:1699
7 | main() {
| ^~~~
0x2dd8fb3 predicate::init_from_control_deps(vec<edge_def*, va_heap, vl_ptr>
const*, unsigned int, bool)
/home/marxin/Programming/gcc2/gcc/gimple-predicate-analysis.cc:1699
0x2dd9aab uninit_analysis::init_use_preds(predicate&, basic_block_def*,
basic_block_def*)
/home/marxin/Programming/gcc2/gcc/gimple-predicate-analysis.cc:1943
0x2dda1be uninit_analysis::is_use_guarded(gimple*, basic_block_def*, gphi*,
unsigned int, hash_set<gphi*, false, default_hash_traits<gphi*> >*)
/home/marxin/Programming/gcc2/gcc/gimple-predicate-analysis.cc:2094
0x2dda349 uninit_analysis::is_use_guarded(gimple*, basic_block_def*, gphi*,
unsigned int)
/home/marxin/Programming/gcc2/gcc/gimple-predicate-analysis.cc:2135
0x1b7ff35 find_uninit_use
/home/marxin/Programming/gcc2/gcc/tree-ssa-uninit.cc:1238
0x1b80277 warn_uninitialized_phi
/home/marxin/Programming/gcc2/gcc/tree-ssa-uninit.cc:1308
0x1b806f9 execute_late_warn_uninitialized
/home/marxin/Programming/gcc2/gcc/tree-ssa-uninit.cc:1426
0x1b807f9 execute
/home/marxin/Programming/gcc2/gcc/tree-ssa-uninit.cc:1442
Please submit a full bug report, with preprocessed source (by using
-freport-bug).
Please include the complete backtrace with any bug report.
See <https://gcc.gnu.org/bugs/> for instructions.
