CodeQL library for C/C++
codeql/cpp-all 0.5.1 (changelog, source)
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Predicate Make::adjacentDefReadExt

NB: If this predicate is exposed, it should be cached.

Holds if def is accessed at index i1 in basic block bb1 (either a read or a write), def is read at index i2 in basic block bb2, and there is a path between them without any read of def.

Import path

import codeql.ssa.Ssa
predicate adjacentDefReadExt(DefinitionExt def, SourceVariable v, BasicBlock bb1, int i1, BasicBlock bb2, int i2)