[Bug tree-optimization/107937] [13 Regression] ICE in find_var_cmp_const, at gimple-predicate-analysis.cc:257 since r13-4408-gb628cad9e093f7a3
zhendong.su at inf dot ethz.ch
gcc-bugzilla@gcc.gnu.org
Thu Dec 1 08:38:42 GMT 2022
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107937
Zhendong Su <zhendong.su at inf dot ethz.ch> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |zhendong.su at inf dot ethz.ch
--- Comment #8 from Zhendong Su <zhendong.su at inf dot ethz.ch> ---
Another test:
[546] % gcctk -O3 -Wall -w small.c
during GIMPLE pass: uninit
small.c: In function ‘main’:
small.c:3:5: internal compiler error: in find_var_cmp_const, at
gimple-predicate-analysis.cc:257
3 | int main() {
| ^~~~
0x818725 find_var_cmp_const
../../gcc-trunk/gcc/gimple-predicate-analysis.cc:257
0x1c9bfbf uninit_analysis::overlap(gphi*, unsigned int, hash_set<gphi*, false,
default_hash_traits<gphi*> >*, predicate const&)
../../gcc-trunk/gcc/gimple-predicate-analysis.cc:648
0x1c9bafa uninit_analysis::is_use_guarded(gimple*, basic_block_def*, gphi*,
unsigned int, hash_set<gphi*, false, default_hash_traits<gphi*> >*)
../../gcc-trunk/gcc/gimple-predicate-analysis.cc:2215
0x1c9c0ec uninit_analysis::is_use_guarded(gimple*, basic_block_def*, gphi*,
unsigned int)
../../gcc-trunk/gcc/gimple-predicate-analysis.cc:2249
0x110d500 find_uninit_use
../../gcc-trunk/gcc/tree-ssa-uninit.cc:1234
0x110de96 warn_uninitialized_phi
../../gcc-trunk/gcc/tree-ssa-uninit.cc:1304
0x110de96 execute_late_warn_uninitialized
../../gcc-trunk/gcc/tree-ssa-uninit.cc:1425
0x110de96 execute
../../gcc-trunk/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.
[547] % cat small.c
int printf(const char *, ...);
int a, b;
int main() {
int c, d;
while (b) {
if (a) {
&d;
c = ~c;
}
printf("0");
while (b && d && c)
;
}
return 0;
}
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