https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111571
Bug ID: 111571
Summary: [13/14 Regression] ICE in modify_call, at
ipa-param-manipulation.cc:656
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: mjambor at suse dot cz
Target Milestone: ---
gcc at -O2 crashes on the following testcase.
Bisected to r13-4685-g4834e9360f7
Compiler explorer: https://godbolt.org/z/3b9ra7Kf8
$ cat a.c
struct a {
int b;
};
struct c {
long d;
struct a e;
long f;
};
int g, h, i;
int j() {return 0;}
static void k(struct a l, int p) {
if (h)
g = 0;
for (; g; g = j())
if (l.b)
break;
}
static void m(struct c l) {
k(l.e, l.f);
for (;; --i)
;
}
int main() {
struct c n = {10, 9};
m(n);
}
$
$ gcc -O2 a.c
during IPA pass: inline
a.c: In function ‘main’:
a.c:25:9: internal compiler error: in modify_call, at
ipa-param-manipulation.cc:655
25 | m(n);
| ^~~~
0x7f9be5bb7082 __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.
$
