https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111442
Bug ID: 111442
Summary: ICE on valid code at -O{s,2,3}: Segmentation fault
signal terminated program cc1
Product: gcc
Version: unknown
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: tree-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: zhendong.su at inf dot ethz.ch
Target Milestone: ---
This appears to be a recent regression.
Compiler Explorer: https://godbolt.org/z/TY6sWMvcv
[542] % gcctk -v
Using built-in specs.
COLLECT_GCC=gcctk
COLLECT_LTO_WRAPPER=/local/home/suz/suz-local/software/local/gcc-trunk/bin/../libexec/gcc/x86_64-pc-linux-gnu/14.0.0/lto-wrapper
Target: x86_64-pc-linux-gnu
Configured with: ../gcc-trunk/configure --disable-bootstrap
--enable-checking=yes --prefix=/local/suz-local/software/local/gcc-trunk
--enable-sanitizers --enable-languages=c,c++ --disable-werror --enable-multilib
Thread model: posix
Supported LTO compression algorithms: zlib
gcc version 14.0.0 20230917 (experimental) (GCC)
[543] %
[543] % gcctk -Os small.c
small.c: In function ‘main’:
small.c:5:15: warning: division by zero [-Wdiv-by-zero]
5 | e = a ? 0 % 0 : 0;
| ^
gcctk: internal compiler error: Segmentation fault signal terminated program
cc1
Please submit a full bug report, with preprocessed source (by using
-freport-bug).
See <https://gcc.gnu.org/bugs/> for instructions.
[544] %
[544] % cat small.c
int *a, b;
int main() {
int d = 1, e;
if (d)
e = a ? 0 % 0 : 0;
if (d)
a = &d;
d = -1;
b = d & e;
b = 2 * e ^ 1;
return 0;
}
