https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111869
Bug ID: 111869 Summary: ICE: verify_ssa failed since r14-4710-g60c231cb658 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: tamar.christina at arm dot com Target Milestone: --- gcc at -O3 crashed. Bisected to r14-4710-g60c231cb658 $ cat a.c int a; unsigned b() { long c; unsigned d = 1; char *e = ""; c = 0; for (; c < a; c++) e[0]++; c = 0; for (; c < a; c++) if (c) d = 0; return d; } int main() {} $ $ gcc -O3 a.c a.c: In function ‘b’: a.c:2:10: error: PHI node with wrong VUSE on edge from BB 14 2 | unsigned b() { | ^ .MEM_39 = PHI <.MEM_1(14), .MEM_1(13)> expected .MEM_29 a.c:2:10: error: PHI node with wrong VUSE on edge from BB 13 .MEM_39 = PHI <.MEM_1(14), .MEM_1(13)> expected .MEM_29 during GIMPLE pass: vect a.c:2:10: internal compiler error: verify_ssa failed 0x7f10859fa082 __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 $