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 āiā: 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. $