https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105884
Bug ID: 105884 Summary: A possible optimization bug when uint64_t is used with -O2/-O3. Product: gcc Version: 13.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c++ Assignee: unassigned at gcc dot gnu.org Reporter: zhonghao at pku dot org.cn Target Milestone: --- zapret is a tool to bypass network blocking: https://github.com/bol-van/zapret/blob/master/docs/readme.eng.md I notice that its programmers complain an optimization bug. This bug is triggered when gcc optimizes uint64_t. The commit is https://github.com/bol-van/zapret/commit/9402cd2cf0a16352a3401f7bce1a894bf131138b Please check the problem.