https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113725
Bug ID: 113725 Summary: ICE during GIMPLE pass: cunroll 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: rguenth at gcc dot gnu.org Target Milestone: --- gcc at -O3 crashed on the test case. Bisected to r14-8683-gb84f8a5e0a7 Compiler explorer: https://godbolt.org/z/qsPvvPx6q %cat reduced.c char a; int b, c, d, e; int f() {} void g() { for (;;) { b = 1; for (; b >= 0; b--) { int *h = &e; for (; d; d++) a && (*h = 8); c = e; } for (; f() <= 2;) ; } } int main() {} % %gcc -O3 reduced.c during GIMPLE pass: cunroll reduced.c: In function āgā: reduced.c:4:6: internal compiler error: Segmentation fault 4 | void g() { | ^ 0x7f07fa09208f ??? /build/glibc-wuryBv/glibc-2.31/signal/../sysdeps/unix/sysv/linux/x86_64/sigaction.c:0 0x7f07fa073082 __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. %