CodeQL library for C/C++
codeql/cpp-all 0.13.1 (changelog, source)

Member predicate IRGuardCondition::ensuresEqEdge

Holds if (determined by this guard) left == right + k must be areEqual on the edge from pred to succ. If areEqual = false then this implies left != right + k.

predicate ensuresEqEdge(Operand left, Operand right, int k, IRBlock pred, IRBlock succ, boolean areEqual)