https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111043
Bug ID: 111043
Summary: ICE in adjust_loop_info_after_peeling, at
tree-ssa-loop-ivcanon.cc:1068
Product: gcc
Version: 14.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
Assignee: unassigned at gcc dot gnu.org
Reporter: shaohua.li at inf dot ethz.ch
CC: jh at suse dot cz
Target Milestone: ---
gcc crashes at -O2 on the following test case.
Bisected to r14-2675-gef28aadad6e, could be similar to bug 110769 and bug
110641, but the bisection points are different.
Compiler explorer: https://godbolt.org/z/Ghza4o7d4
$ cat a.c
int a, b, c, d;
short e;
int f() {
a = 1;
while (a) {
c = b % a;
b = a;
a = c;
}
return b;
}
int g() {
d = 0;
for (; d <= 1; d++)
e = 0;
for (; f() + d - 3 + e; e = e + 8)
;
}
int main() {}
$
$ gcc-r14-2675-gef28aadad6e -O2 a.c
during GIMPLE pass: ch_vect
a.c: In function ‘g’:
a.c:12:5: internal compiler error: in adjust_loop_info_after_peeling, at
tree-ssa-loop-ivcanon.cc:1068
12 | int g() {
| ^
0x21789ce internal_error(char const*, ...)
???:0
0x9d3f84 fancy_abort(char const*, int, char const*)
???:0
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.
$
