https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111514
Bug ID: 111514
Summary: [14 Regression] ICE: in lower_bound, at
value-range.h:1078 since r14-3644-g1aceceb1e2
Product: gcc
Version: 14.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: tree-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: shaohua.li at inf dot ethz.ch
CC: guojiufu at gcc dot gnu.org
Target Milestone: ---
gcc at -O3 crashes on the following testcase.
Bisected to r14-3644-g1aceceb1e2
Compiler explorer: https://godbolt.org/z/65G54cY8Y
$ cat a.c
unsigned a;
int b, f, g, h;
int e[1];
void j() {
int k;
b = 0;
for (; k;)
if (f)
if (h)
b ^= 0 <= 0;
}
void i() {
j();
for (; a; ++a) {
{
int c = b, d;
if (b >= 'z' && d)
c = 5;
g = c;
}
*e = g;
}
}
int main() {}
$
$ gcc -O3 a.c
during GIMPLE pass: vrp
a.c: In function ‘i’:
a.c:12:6: internal compiler error: in lower_bound, at value-range.h:1078
12 | void i() {
| ^
0x7fa1dcb81082 __libc_start_main
../csu/libc-start.c:308
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.
$
