https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94352
Bug ID: 94352 Summary: Suspicious code in tree-ssa-propagate.c Product: gcc Version: tree-ssa Status: UNCONFIRMED Severity: normal Priority: P3 Component: tree-optimization Assignee: unassigned at gcc dot gnu.org Reporter: fxue at os dot amperecomputing.com Target Milestone: --- In function ssa_propagation_engine::ssa_propagate(), a call chain below might lead to a reference to uninitialized data. ssa_propagate() -> ssa_prop_init() -> add_control_edge() -> "curr_order" But ssa_prop_init() is called before "curr_order" is initialized to 0.